Patent Description:
<CIT> concerns a refrigerator including an extractable container, and a conveying unit formed in an inner space of a vertical wall of the extractable container. The conveying unit includes a guide part to guide the movement of a partition member that divides a storage space of the extractable container, and a fixing part to restrict the movement of the partition member.

A storage device of a refrigerator, such as a drawer, a crisper, a storage box, a bottle rack, or the like, generally has a large accommodation cavity. A variety of food tends to be in a mess when placed therein, which is very inconvenient to take and place food. In particular, the various food is adhered one another when are placed and adhered one another in a drawer of the freezing compartment, which is more inconvenient to take out food from the drawer of the freezing compartment of the refrigerator.

In order to solve the above-mentioned problems, some manufacturers divide the accommodation cavity of the storage device by a partition frame, but such partition frames may only simply divide the accommodation cavity, without freely adjusting partition spaces according to stored articles, with poor flexibility; moreover, with a complicated assembly structure, the partition frame is not easy to disassemble or assemble; the stored articles in different partition spaces tend to slide down and be chaotic, failing to achieve an effect of division.

The present invention aims to solve at least one of the technical problems existing in the prior art. To achieve the above objective, the present invention provides a storage device and a refrigerator having the same.

To fulfill said objective of the present invention, the present invention provides a storage device and a refrigerator according to the appended set of claims.

Compared with a prior art, the present invention has the following advantageous effects. By providing a structure in which a first partition frame is coordinated with a guiding element, not only the degree of freedom and flexibility of dividing an accommodation cavity are improved to meet different storage demands, but also the assembly/disassembly is convenient, and the stability during movement is high.

An embodiment of the present invention provides a refrigerator, including a box body and a door, the box body and the door defining at least one storage compartment, which may be a refrigerating compartment, a freezing compartment, a multi zone, or the like. The refrigerator further includes a storage device for storing articles, which is provided in the storage compartment and may be specifically configured as a drawer, a crisper, a storage box, a bottle rack, and the like. Hereinafter, the storage device according to the present invention will be described in detail in conjunction with specific embodiments.

Referring to <FIG>, the present embodiment provides a storage device <NUM>, including a body <NUM>, a pair of guiding mechanisms <NUM>, a first partition frame <NUM>, a second partition frame <NUM> and an regulating assembly <NUM>.

Enclosed by the body <NUM>, an accommodation cavity <NUM> has an upper opening and is rectangular parallelepiped substantially, for storing various articles, such as food, beverage, or the like. The body <NUM> includes a bottom wall, a pair of first side walls 11a arranged opposite to each other, and a pair of second side walls 11b arranged opposite to each other. The bottom wall is configured for carrying articles, and the pair of first side walls 11a and the pair of second side walls 11b extend perpendicularly upwards from the bottom wall respectively.

In order to clearly express the position and direction described in the present embodiment, the direction defined by a relative position of the pair of first side walls 11a is referred to as a front-rear direction (also as a longitudinal direction), and the direction defined by a relative position of the pair of second side walls 11b is referred to as a left-right direction (also as a lateral direction). That is, the pair of first side walls 11a is arranged front to back, and the pair of second side walls 11b is arranged left and right. In addition, the plane defined both by the front-rear direction and the left-right direction is defined as a horizontal plane, and the direction perpendicular to the horizontal plane is defined as a vertical direction.

Referring to <FIG>, the pair of guiding mechanisms <NUM> is arranged on the pair of second side walls 11b respectively. Referring to <FIG>, the guiding mechanism <NUM> includes a guide bar 12a, a guiding element 12b and fixing bases 12c, wherein the guiding mechanism <NUM> is fixed on the body <NUM> through the fixing bases 12c, the fixing bases 32c are fixed with the body <NUM> in a threaded connection, rivet connection, fastener connection, or the like; parallel with the second side wall 11b, the guide bar 12a extends in the front-rear direction; the guide bar 12a is sleeved with the guiding element 12b, the guiding element 12b may slide in the front-rear direction along the guide bar 12a; when the guiding mechanism <NUM> is fixed to the body <NUM>, the guiding element 12b may only slide in the front-rear direction with respect to the body <NUM>.

The first partition frame <NUM> is accommodated in the accommodation cavity <NUM>, for dividing the accommodation cavity <NUM> in the front-rear direction. Specifically, the first partition frame <NUM> includes a partition element laterally arranged in the accommodation cavity <NUM> for dividing the accommodation cavity <NUM>, the vertical plane where the partition element is located is defined as a partition plane of the first partition frame <NUM>, and the accommodation cavity <NUM> is divided in the front-rear direction by taking the partition plane of the first partition frame <NUM> as a boundary. In the present embodiment, the partition element includes long transverse partition bars 132a and 132b which extend left and right and are arranged spaced apart from each other in the vertical direction.

The first partition frame <NUM> further includes a pair of connectors 132c which is configured for connecting an end portion of the transverse partition bar 132a with an end portion of the transverse partition bar 132b, and enclosing a rectangular frame together with the transverse partition bars 132a, 132b.

The first partition frame <NUM> is slidably connected onto the body <NUM> in the front-rear direction through the guiding mechanism <NUM>, for adjusting the size and/or number of the storage partitions formed by dividing the accommodation cavity <NUM> in the front-rear direction.

Specifically, the first partition frame <NUM> includes a pair of fixing portions 132d and limited portions 132e formed at the left and right ends of the first partition frame <NUM>; the guiding element 12b includes a first guiding element 121b, a second guiding element 122b, a mounting portion and a limiting portion 12e.

The fixing portion 132d is specifically provided in shape of a long bar extending in the front-rear direction, and the mounting portion is provided to be a mounting hole 12d extending in the front-rear direction, the fixing portion 132d is insertably fitted into the mounting portion 12d in the first direction parallel with the front-rear direction, and the first direction is a forward horizontal direction in the present embodiment. When the fixing portion 132d is inserted into the mounting hole 12d, the first partition frame <NUM> is slidably connected onto the guiding element 12b synchronously, and at this point, the fixing portion 132d and the mounting hole 12d are limited mutually in the left-right direction, so that the fixing portion 132d cannot move left and right with respect to the guiding element 12b.

The limiting portion 12e is matched with the limited portion 132e. When the fixing portion 132d is insertably fitted into the mounting hole 12d, the limiting portion 12e is fitted and connected with the limited portion 132e to limit the front-rear direction movement of the first partition frame <NUM> with respect to the guiding element 12b. In this way, the first partition frame <NUM> may be stably connected with the guiding element 12b to prevent the first partition frame <NUM> from shaking.

In the present embodiment, the fixing portion 132d and the limited portion 132e are connected with each other to form an L-shaped structure.

The first guiding element 121b and the second guiding element 122b are separately provided, and the first and second guiding elements 121b and 122b are detachably assembled with each other. The mounting hole 12d is provided on the first guiding element 121b. When the first and second guiding elements 121b and 122b are separated from each other, the fixing portion 132d may be inserted into the mounting hole 12d from between the first and second guiding elements 121b and 122b; when the fixing portion 132d is inserted into the mounting hole 12d and the first and second guiding elements 121b and 122b are assembled with each other, the limiting portion 12e is formed between the first and second guiding elements 121b and 122b (i.e., the limiting portion 12e is enclosed by the first and second guiding elements 121b and 122b), the limited portion 132e is fitted into the limiting portion 12e, and the first and second guiding elements 121b and 122b are butted against the limited portion 132e from front and rear sides, and are configured to together limit the back-and-forth movement of the first partition frame <NUM> with respect to the guiding element 12b.

An outer surface of each of the guiding elements 12b is butted against the corresponding second side wall 11b. In this way, when the first partition frame <NUM> tends to move leftward or rightward with respect to the body <NUM>, one of the guiding elements 12b may limit the tendency of leftward movement of the first partition frame <NUM> by butting against the corresponding second side wall 11b, and the other of the guiding elements 12b may limit the tendency of rightward movement of the first partition frame <NUM> by butting against the corresponding second side wall 11b.

In the present embodiment, the guiding mechanism <NUM> is provided at an exterior of the body <NUM> away from the accommodation cavity <NUM>, specifically outside the corresponding second side wall 11b. An inner side of each of the guiding elements 12b abuts against the corresponding second side wall 11b respectively, thereby enhancing the stability of the guiding element 12b when sliding, and preventing the first partition frame <NUM> from swaying from side to side with respect to the body <NUM> in use.

Each of the second side walls 11b is provided thereon with a guide groove 11c extending in the front-rear direction. The left and right ends of the first partition frame <NUM> pass through the guide groove 11c and then are connected onto the guiding mechanism <NUM>. Specifically, the fixing portion 132d passes through the guide groove 11c from the accommodation cavity <NUM>, and then is fitted and connected into the mounting hole 12d of the guiding element 12b.

Referring to <FIG>, the second partition frame <NUM> is accommodated in the accommodation cavity <NUM> for dividing the accommodation cavity <NUM> in the left-right direction. In the present embodiment, the second partition frame <NUM> is rotatably connected onto the first partition frame <NUM> around a vertical axis t through a regulating assembly <NUM>. According to the positional relation between the second partition frame <NUM> and the first partition frame <NUM>, the storage device <NUM> has a folded state (referring to <FIG>) and an unfolded state (referring to <FIG>). By rotatably connecting the second partition frame <NUM> onto the first partition frame <NUM>, the number of storage partitions formed by dividing the accommodation cavity <NUM> may be adjusted, and the flexibility of dividing the accommodation cavity <NUM> is improved.

The second partition frame <NUM> includes a partition body for dividing the accommodation cavity <NUM>, and the vertical plane where the partition body is located is defined as the partition plane of the second partition frame <NUM>. A transverse width of the accommodation cavity <NUM> (that is, a spacing between the pair of second side walls 11b) is greater than a longitudinal width of the accommodation cavity <NUM> (that is, a spacing between the pair of first side walls 11a). Correspondingly, the width of the partition plane of the first partition frame <NUM> is greater than that of the partition plane of the second partition frame <NUM>, i.e., a length of the partition element is greater than that of the partition body.

In the present embodiment, the partition body includes long longitudinal partition bars 131a and 131b which are parallel with each other and arranged spaced apart from each other in the vertical direction.

Referring to <FIG>, when the storage device <NUM> is in the folded state, the partition plane of the second partition frame <NUM> is coplanar with the partition plane of the first partition frame <NUM>. The longitudinal partition bars 131a, 131b and the transverse partition bars 132a, 132b all extend in the left-right direction and are located in the same vertical plane. In this way, the occupied space of the second partition frame <NUM> not in use may be reduced, and the cleanliness and aesthetic degree are improved. Referring to <FIG>, when the storage device <NUM> is in the unfolded state, the second partition frame <NUM> is crossed with the first partition frame <NUM>, the accommodation cavity <NUM> may be divided in the front-rear direction by taking the partition plane of the first partition frame <NUM> as a boundary, and in the left-right direction by taking the partition plane of the second partition frame <NUM> as a boundary. At this point, a non-zero included angle is formed between the partition plane of the second partition frame <NUM> and the partition plane of the first partition frame <NUM>. In the present embodiment, at this point, the partition plane of the second partition frame <NUM> is perpendicular to the partition plane of the first partition frame <NUM>. Specifically, the longitudinal partition bars 131a, 131b extend in the front-rear direction, the transverse partition bars 132a, 132b extend in the left-right direction, and the longitudinal partition bars 131a, 131b are perpendicular to the transverse partition bars 132a, 132b.

Further, the partition element may further include a glass partition plate 133a, which is selectively assembled by a user between the first fixing element 133b and the second fixing element 133e. The partition plate 133a is assembled onto the connector 132c through the first fixing element 133b, and is detachably connected onto the regulating assembly <NUM> through the second fixing element 133e. By providing the partition plate 133e, the articles stored in the storage partitions at front and rear sides of the first partition frame <NUM> are not in contact, which avoids tainting, and prevents the stored articles from sliding down crossly from between the transverse partition bars 132a and 132b. Certainly, in a variation, the partition plate 133e is not only located between the transverse partition bars 132a and 132b, but also partially extends upwards to above the transverse partition bar 132a, and/or partially extends downwards to below the transverse partition bar 132b.

In the vertical direction, the longitudinal partition bars 131a and 131b are arranged adjacent to each other, the longitudinal partition bar 131a is higher than an upper boundary of the partition element all along (in the present embodiment, the transverse partition bar 132a), and the longitudinal partition bar 131b is lower than a lower boundary of the partition element all along (in the present embodiment, the transverse partition bar 132b). The longitudinal partition bar 131a, the transverse partition bars 132a, the partition plate 133a, the transverse partition bar 132b, and the longitudinal partition bar 131b are arranged sequentially in the vertical direction. In this way, when the storage device <NUM> is in the folded state, the second partition frame <NUM> does not interfere with the partition plate 133a.

Further, the second partition frame <NUM> may also slidably connected onto the first partition frame <NUM> through the regulating assembly <NUM>, i.e., the second partition frame <NUM> is not only slidable with respect to the first partition frame <NUM>, but also rotatable around the vertical axis t, thereby adjusting the number and/or size of the storage partitions formed by dividing the accommodation cavity <NUM> as needed.

The above-mentioned second partition frame <NUM> may be slidably connected onto the first partition frame <NUM> through the regulating assembly <NUM> in a plurality of manners. Firstly, the first partition frame <NUM> is not slidably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is slidably connected to the regulating assembly <NUM>, thereby adjusting the size/number of the storage partitions formed by dividing the accommodation cavity <NUM> by the first partition frame <NUM> in the front-rear direction; secondly, the first partition frame <NUM> is slidably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is not slidably connected to the regulating assembly <NUM>, thereby adjusting the size/number of the storage partition formed by dividing the accommodation cavity <NUM> by the second partition frame <NUM> in the left-right direction; thirdly, as in the present embodiment, the first partition frame <NUM> is slidably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is also slidably connected to the regulating assembly <NUM>, thereby regulating the size/number of the storage partitions formed by dividing the accommodation cavity <NUM> by the first and second partition frames <NUM> and <NUM> in the front-rear direction and the left-right direction, and further improving the flexibility.

The specific structure of the regulating assembly <NUM> will be described in detail below with reference to <FIG>. In the present embodiment, the regulating assembly <NUM> is provided as a cylindrical structure with mirror symmetry along a horizontal plane q. Certainly, in the variation, its shape and structure are not limited to the present embodiment.

The regulating assembly <NUM> includes a first regulating mechanism and a second regulating mechanism. The first regulating mechanism is fitted and connected with one of the first and second partition frames <NUM> and <NUM>, and the second regulating mechanism is fitted and connected with the other of the first and second partition frames <NUM> and <NUM>. In the present embodiment, the first regulating mechanism is fitted and connected with the first partition frame <NUM>, and two first regulating mechanisms are provided, i.e., the first regulating mechanism 142a which is fitted and connected with the transverse partition bar 132a and the first regulating mechanism 142b which is fitted and connected with the transverse partition bar 132b; the second regulating mechanism is fitted and connected with the second partition frame <NUM>, and two second regulating mechanisms are provided, i.e., the second regulating mechanism 141a which is fitted and connected with the longitudinal partition bar 131a and the second regulating mechanism 141b which is fitted and connected with the longitudinal partition bar 131b; the first regulating mechanism 142b is matched with the second regulating mechanism 141b, and the first regulating mechanism 142b is matched with the second regulating mechanism 141b.

The first regulating mechanism 142a includes a third member 43a, a fourth member 44a, and a first passage 145a. The third member 43a includes two hooks 434a and a groove 433a; the fourth member 44a includes two slots 441a and a groove 442a; the two hooks 434a are fastened and connected with the two slots 441a in one-to-one correspondence, such that the third member 43a and the fourth member 44a are fitted and connected with each other; the first passage 145a is formed between the third member 43a and the fourth member 44a, and is specifically enclosed by the grooves 433a and 442a, thereby conveniently matching and connecting the first regulating mechanism 142a with the transverse partition bar 132a. The transverse partition bar 132a passes through the first passage 145a, such that the first regulating mechanism 142a slides along the transverse partition bar 132a.

Similarly, the first regulating mechanism 142b is fitted and connected with the transverse partition bar 132b, and the specific structure thereof refers to the structure of the first regulating mechanism 142a, without repetition herein. The first passage 145a is parallel with the first passage 145b, and the regulating assembly <NUM> is slidably connected to the first partition frame <NUM> in the left-right direction.

The second regulating mechanism 141a includes a first member 41a, a second member 42a, and a second passage 144a. The first member 41a includes two hooks 411a and a groove 412a; the second member 42a includes two slots 421a and a groove 422a; the two hooks 411a are fastened and connected with the two slots 421a in one-to-one correspondence, such that the first member 41a and the second member 42a are fitted and connected with each other; the second passage 144a is formed between the first member 41a and the second member 42a, and is specifically enclosed by the grooves 422a and 412a, thereby conveniently matching and connecting the second regulating mechanism 141a with the longitudinal partition bar 131a. The longitudinal partition bar 131a passes through the second passage 144a, such that the second regulating mechanism 141a slides along the longitudinal partition bar 131a.

Similarly, the second regulating mechanism 141b is fitted and connected with the longitudinal partition bar 131b, and the specific structure thereof refers to the structure of the second regulating mechanism 141a, without repetition herein. The second passage 141a is parallel with the second passage 141b, and the regulating assembly <NUM> is slidably connected to the second partition frame <NUM>.

Further, the first regulating mechanism 142a includes a mating pin 432a, and the second regulating mechanism 141a includes a mating hole matched with the mating pin 432a; the mating pin 432a may be insertably fitted with the mating hole of the second regulating mechanism 141a in the vertical direction, and the mating pin 432a and the mating hole have matched cylindrical mating surfaces, such that the first and second regulating mechanisms 142a and 141a are fitted and connected and are rotated relatively around the vertical axis t. In the present embodiment, the second regulating mechanism 141a is rotated around the vertical axis t (with reference to the body <NUM>). Similarly, the second regulating mechanism 141b includes a mating hole 424b, and the first regulating mechanism 142b includes a mating pin matched with the mating hole 424b; the mating hole 424b may be insertably fitted with the mating pin of the first regulating mechanism 142b in the vertical direction, and the mating hole 424b and the mating pin have matched cylindrical mating surfaces, such that the first and second regulating mechanisms 142b and 141b are fitted and connected and are rotated relatively around the vertical axis t. In the embodiment, the second regulating mechanism 141b is rotated around the vertical axis t (with reference to the body <NUM>).

Moreover, when the mating holes of the mating pin 432a and the second regulating mechanism 141a are fitted and connected, the two are limited mutually, such that the relative displacement of the first and second regulating mechanisms 142a and 141a in the horizontal direction is limited, thereby avoiding shaking. Similarly, when the mating hole 424b is fitted and connected with the mating pin of the first regulating mechanism 142b, the two are limited mutually, such that the relative displacement of the first and second regulating mechanisms 142b and 141b in the horizontal direction is limited, thereby avoiding shaking.

In this way, with the relative rotation of the first regulating mechanisms 142a, 142b and the second regulating mechanisms 141a, 141b, the first and second partition frames <NUM> and <NUM> are rotated around the vertical axis t with respect to each other, so that the storage device <NUM> is switched between the folded state and the unfolded state.

Specifically, the regulating assembly <NUM> further includes a cam structure formed between the first and second regulating mechanisms. In the present embodiment, the number of the cam structures is two, i.e., the cam structure 143a formed between the first and second regulating mechanisms 142a and 141a, and the cam structure 143b formed between the first and second regulating mechanisms 142b and 141b. Certainly, in the variation, only one of the cam structures 143a and 143b may be provided.

Taking the cam structure 143a as an example, the specific structure of the cam structure will be described (the specific structure of the cam structure 143b refers to that of the cam structure 143a, and will not be repeated herein). The cam structure 143a includes a first concave-convex curved surface 431a with a circumferentially-waved shape formed on an upper end surface of the first regulating mechanism 142a, and a second concave-convex curved surface 432a with a circumferentially-waved shape formed on a lower end surface of the second regulating mechanism 141a, the first and second concave-convex curved surfaces 431a and 423a are fitted with each other; and when the first and second regulating mechanisms 142a and 141a are rotated around the vertical axis t with respect to each other, the second and first concave-convex curved surfaces 423a and 431a are butted against each other, such that the first and second regulating mechanisms 142a and 141a make reciprocating salutatory movements away from or close to each other in the vertical direction.

The cam structure 143a has at least two lowest engaging positions (referring to <FIG>) where the second and first concave-convex curved surfaces 423a and 431a are fitted with each other concavely and convexly, and a highest butting position (referring to <FIG>) where the second and first concave-convex curved surfaces 423a and 431a are butted against each other concavely and convexly. When the cam structure 143a is moved from the lowest engaging position to the highest butting position, the first and second regulating mechanisms 142a and 141a are away from each other in the vertical direction; when the cam structure 143a is moved from the highest butting position to the lowest engaging position, the first and second regulating mechanisms 142a and 141a are close to each other in the vertical direction.

When the second partition frame <NUM> is rotated around the vertical axis t with respect to the first partition frame <NUM>, by taking the process of changing the storage device <NUM> from the folded state to the unfolded state (contrary to the process of changing the storage device <NUM> from the unfolded state to the folded state ) as an example:.

referring to <FIG>, when the storage device <NUM> is in the folded state, the regulating assembly <NUM> is in a first engaging state; at this point, the first passages 145a, 145b are parallel with the second passages 144a, 144b; correspondingly, the partition plane of the first partition frame <NUM> is parallel with that of the second partition frame <NUM>, and the cam structures 143a, 143b are both at one of the lowest engaging positions;.

referring to <FIG>, when the storage device <NUM> is switched from the folded state to the unfolded state, during the process that the regulating assembly <NUM> changes from the first engaging state into a critical state, the cam structures 143a, 143b are both moved from the lowest engaging position to the highest butting position, the first and second regulating mechanisms 142a and 141a are away from each other in the vertical direction, and the first and second regulating mechanisms 142b and 141b are away from each other in the vertical direction, until the regulating assembly <NUM> is in the critical state, and the cam structures 143a, 143b are both at the highest butting position; and then, during the process that the regulating assembly <NUM> changes from the critical state into the second engaging state, the first and second regulating mechanisms 142a and 141a are close to each other in the vertical direction, and the first and second regulating mechanisms 142b and 141b are close to each other in the vertical direction;
referring to <FIG>, when the storage device <NUM> is in the unfolded state, the regulating assembly <NUM> is in the second engaging state; at this point, the first passages 145a, 145b are perpendicular to the second passages 144a, 144b; correspondingly, the partition plane of the first partition frame <NUM> is perpendicular to that of the second partition frame <NUM>, and the cam structures 143a, 143b are both at the other of the lowest engaging positions.

Further, the cam structures 143a, 143b are both configured as a circumferentially quartering structure, i.e., when the cam structures 143a, 143b are changed between the two adjacent lowest engaging positions, the first and second regulating mechanism 142a and 141a are rotated with respect to each other by <NUM>° around the vertical axis t, and the first and second regulating mechanisms 142b and 141b are rotated with respect to each other by <NUM>° around the vertical axis t. Further, the second partition frame <NUM> is rotated by <NUM>° with respect to the first partition frame <NUM> around the vertical axis t, such that the storage device <NUM> is switched between the folded state and the unfolded state to finish a turnover cycle.

At the same time, when the cam structures 143a, 143b are changed between the lowest engaging position and the highest butting position, the first and second regulating mechanisms 142a and 141a are rotated with respect to each other by <NUM>° around the vertical axis t, and the first and second regulating mechanisms 142b and 141b are rotated with respect to each other by <NUM>° around the vertical axis t.

Certainly, in the variation, the cam structures 143a, 143b may also be configured as circumferentially inequant or multi-equant structures (such as the structure divided into three, five, six, eight equal parts, or the like) according to the specific requirements of a rotation angle of the storage device <NUM> switched from the folded state to the unfolded state.

Further, when the cam structures 143a, 143b are not at the lowest engaging position, the regulating assembly <NUM> is always subjected to an elastic driving force which drives the cam structures 143a, 143b to move to the lowest engaging position, i.e., the elasticity driving force drives the first and second regulating mechanisms 142a and 141a to have a tendency to be close to each other in the vertical direction and drives the first and second regulating mechanisms 142b and 141b to have a tendency to be close to each other in the vertical direction.

In the present embodiment, the elastic driving force is provided by the second partition frame <NUM>. Specifically, the second partition frame <NUM> is made of a rigid material, and further includes a pair of connecting rods 131c for connecting the end portion of the longitudinal partition bar 131a and the end portion of the longitudinal partition bar 131b; the fourth member 44a and the fourth member 44b are integrally formed, the fourth member 44a is provided as an upper half part of a structural element <NUM>, and the fourth member 44b is provided as a lower half part of the member <NUM>, such that the first regulating mechanisms 142a, 142b are fixedly connected in the vertical direction. When the cam structures 143a, 143b are at the lowest engaging position, the second partition frame <NUM> is not elastically deformed, and the longitudinal partition bars 131a, 131b are parallel with each other and have an initial spacing; when the cam structures 143a, 143b are not at the lowest engaging position (including between the lowest engaging position and the highest butting position and at the highest butting position), driven by the second regulating mechanisms 141a, 141b, a local spacing of the longitudinal partition bars 131a, 131b close to the regulating assembly <NUM> is greater than the initial spacing, and the initial spacing is maintained at the end portion by the pulling of the connecting rod 131c, and then the second partition frame <NUM> is elastically deformed, and applies the elastic driving force onto the regulating assembly <NUM>.

In this way, in one turnover cycle of the storage device <NUM> switched between the folded state and the unfolded state: under the action of an external force, the second partition frame <NUM> is rotated with respect to the first partition frame <NUM> around the vertical axis t, the regulating assembly <NUM> is changed from the first engaging state to the critical state (or from the second engaging state to the critical state), the cam structures 143a, 143b are both moved from the lowest engaging position to the highest butting position, the second regulating mechanisms 141a, 141b are away from each other in the vertical direction to drive the second partition frame <NUM> to be elastically deformed; when the regulating assembly <NUM> reaches the critical state, the cam structures 143a, 143b are both at the highest butting position, the second partition frame <NUM> is elastically deformed furthest; over the critical state, under the elastic restoring force of the second partition frame <NUM>, the second regulating mechanisms 141a, 141b are close to each other in the vertical direction, and the regulating assembly <NUM> is changed from the critical state to the second engaging state (or from the critical state to the first engaging state), such that the storage device <NUM> is changed from the folded state to the unfolded state (or from the unfolded state to the folded state).

Certainly, in the variation, the storage device <NUM> may further include an elastic element which provides the elastic driving force, and the elastic element is provided between the first and second regulating mechanisms. When the cam structure is not at the lowest engaging position, the elastic element is elastically deformed.

Further, the connecting rod 131c is provided not to be coplanar with the longitudinal partition bars 131a, 131b. When the storage device <NUM> is in the folded state, the pair of connecting rods 131c abut against the transverse partition bars 132a and 132b and are located at front and rear sides of the first partition frame <NUM> respectively.

Compared with the prior art, the storage device <NUM> according to the present embodiment may adjust the number/size of the storage partitions formed by dividing the accommodation cavity <NUM> as needed. For example, with the movements of the first partition frame <NUM> and/or the second partition frame <NUM>, the area without partition as shown in <FIG>, the area with two partitions in <FIG> or <FIG>, and the area with four partitions in <FIG> is formed, or by detaching or replacing the second partition frame <NUM>, the area with three partitions as shown in <FIG> is formed; and the first partition frame <NUM> is convenient to be disassembled and assembled, and has good stability in use; the storage partitions formed by dividing the first partition frame <NUM> may prevent articles from falling down crosswise.

Certainly, in the variation, there may be provided one first regulating mechanism, and its upper and lower ends are fitted and connected with one of the second regulating mechanisms; or the two second regulating mechanisms are fixedly connected in the vertical direction, and the two first regulating mechanisms are separately disposed, and when the regulating assembly is changed from the first engaging state to the critical state, the two first regulating mechanisms are moved close to each other in the vertical direction. None of these variations departs from the technical principle of the present invention.

Referring to <FIG>, the present embodiment provides a storage device <NUM>, including a body <NUM>, a pair of guiding mechanisms <NUM>, a first partition frame <NUM>, a second partition frame <NUM> and a regulating assembly <NUM>.

Enclosed by the body <NUM>, an accommodation cavity <NUM> has an upper opening and is rectangular parallelepiped substantially, for storing various articles, such as food, beverage, or the like. The body <NUM> includes a bottom wall, a pair of first side walls 31a arranged opposite to each other, and a pair of second side walls 31b arranged opposite to each other. The bottom wall is configured for carrying articles, and the pair of first side walls 31a and the pair of second side walls 31b extend perpendicularly upwards from the bottom wall respectively. One first side wall 31a also functions as a door of the storage compartment.

In order to clearly express the position and direction described in the present embodiment, the direction defined by a relative position of the pair of first side walls 31a is referred to as a front-rear direction (also as a longitudinal direction), and the direction defined by a relative position of the pair of second side walls 31b is referred to as a left-right direction (also as a lateral direction). That is, the pair of first side walls 31a is arranged front to back, and the pair of second side walls 31b is arranged left and right. In addition, the plane defined both by the front-rear direction and the left-right direction is defined as a horizontal plane, and the direction perpendicular to the horizontal plane is defined as a vertical direction.

Referring to <FIG>, the pair of guiding mechanisms <NUM> is arranged at the pair of second side walls 31b respectively. The guiding mechanism <NUM> includes a guide bar 32a, a guiding element 32b and fixing bases 32c, wherein the guiding mechanism <NUM> is fixed on the body <NUM> through the fixing bases 32c, the fixing bases 32c are fixed with the body <NUM> in a threaded connection, rivet connection, fastener connection, or the like; parallel with the second side wall 31b, the guide bar 32a extends in the front-rear direction and is provided to have a shape of a cylindrical long bar; the guiding element 32b includes a guiding body 320b and a pair of brackets 321b with through holes 322b respectively, the through holes 322b are matched with the guide bar 32a, the guide bar 32a is sleeved with the guiding element 32b through the through holes 322b, and the guiding element 32b may slide in the front-rear direction along the guide bar 32a.

The first partition frame <NUM> is accommodated in the accommodation cavity <NUM>, for dividing the accommodation cavity <NUM> in the front-rear direction. Specifically, the first partition frame <NUM> includes a partition element laterally arranged (i.e., extending in the left-right direction) in the accommodation cavity <NUM> for dividing the accommodation cavity <NUM>, the vertical plane where the partition element is located is defined as a partition plane of the first partition frame <NUM>, and the accommodation cavity <NUM> is divided in the front-rear direction by taking the partition plane of the first partition frame <NUM> as a boundary. The partition element includes long transverse partition bars 332a and 332b which extend left and right and are arranged spaced apart from each other in the vertical direction.

The first partition frame <NUM> further includes a pair of connectors 332c which is configured for connecting an end portion of the transverse partition bar 332a with an end portion of the transverse partition bar 332b, and enclosing a rectangular frame together with the transverse partition bars 332a, 332b.

The first partition frame <NUM> is slideably connected onto the body <NUM> in the front-rear direction through the guiding mechanism <NUM>. The sliding of the first partition frame <NUM> may adjust the size and/or number of the storage partitions formed by dividing the accommodation cavity <NUM> in the front-rear direction, so as to meet diversified demands from different stored articles.

Specifically, referring to <FIG>, the first partition frame <NUM> includes a pair of fixing portions 332b and limited portions 332e formed at left and right ends of the first partition frame <NUM>; the guiding element 32b includes a hook 323b, a mounting portion, a limiting portion 325b and an opening 326b extending out of the guiding body 320b.

Specifically, the fixing portion 332d is provided to be a long bar extending in the front-rear direction, the mounting portion is provided to be a mounting groove 324b which is enclosed by the hook 323b and extends in the front-rear direction, and the fixing portion 332d is fastened in the mounting groove 324b in the first direction through the opening 326b. The first direction is perpendicular to the front-rear direction, and in the present embodiment, refers to a diagonally downward direction. When the fixing portion 332d is fastened in the mounting groove 324b, the first partition frame <NUM> is slideably connected onto the guiding element 32b synchronously, and at this point, the fixing portion 332d and the mounting groove 324b are limited mutually in the left-right direction, such that the fixing portion 332d cannot move left and right with respect to the guiding element 32b.

The limiting portion 325b is matched with the limited portion 332e. When the fixing portion 332d is fastened in the mounting groove 324b, the limiting portion 325b is fitted and connected with the limited portion 332e, to limit the first partition frame <NUM> from moving in the front-rear direction with respect to the guiding element 32b. In this way, the first partition frame <NUM> is stably connected with the guiding element 32b, to prevent the first partition frame <NUM> from wobbling.

In the present embodiment, the fixing portion 332d is connected with the limited portion 332e to form a T-shaped structure.

The limiting portion 325b is a U-shaped notch which is recessed on the hook 323b from the opening 326b. When the fixing portion 332d is fastened in the mounting groove 324b, the limited portion 332e is fitted into the notch and is butted against the front and rear side surfaces of the notch, thereby limiting the first partition frame <NUM> with respect to the guiding element 32b in the front-rear direction.

Further, the guiding element 32b further has an inclined guiding surface 327b arranged at the opening 326b, so as to guide the fixing portion 332d to smoothly pass through the opening 326b to be fastened into the mounting groove 324b.

In the present embodiment, the hook 323b is provided to be an elastic structure; the fixing portion 332d is provided to be a cylindrical bar with a diameter of D. In the first direction, an aperture of the opening 326b decreases gradually to a minimal value W, wherein W<D. In this way, when the fixing portion 332d is fitted and connected in the mounting groove 324b through the opening 326b, the hook 323b is elastically deformed by being butted against the fixing portion 332d, until the fixing portion 332d is matched and stably kept in the mounting groove 324b under the action of an elastic self-resilience of the hook 232b.

Further, referring to <FIG>, the body <NUM> further includes an auxiliary element 31e with an fitting cavity 311e and a mounting cavity 312e. A top end of the second side wall 31b may be accommodated in the fitting cavity 311e from the bottom up to suspend the auxiliary element 31e on the second side wall 31b, thereby detachably connecting the auxiliary element 31e onto the second side wall 31b. When the auxiliary element 31e is assembled onto the second side wall 31b, the mounting cavity 312e is located in and communicated with the accommodation cavity <NUM> of the storage device <NUM> through a lower port 3120e; the guiding mechanism <NUM> may be assembled onto the auxiliary element 31e and accommodated in the accommodation cavity 312e. In this way, the guiding mechanism <NUM> may be firstly connected with the first partition frame <NUM>, and then with the auxiliary element 31e, after which, the auxiliary element 31e carrying the guiding mechanism <NUM> and the first partition frame <NUM> is suspended onto the second side wall 31b, thereby finishing the assembly, which is convenient and rapid. Certainly, in other embodiments, the mounting cavity may also be provided to be enclosed by both the auxiliary element and the second side wall.

The second partition frame <NUM> is accommodated in the accommodation cavity <NUM> for dividing the accommodation cavity <NUM> in the left-right direction. In the present embodiment, the second partition frame <NUM> is rotatably connected onto the first partition frame <NUM> around a vertical axis t2 through a regulating assembly <NUM>. According to the positional relation between the second partition frame <NUM> and the first partition frame <NUM>, the storage device <NUM> has a folded state and an unfolded state (referring to <FIG>). By rotatably connecting the second partition frame <NUM> onto the first partition frame <NUM>, the number of storage partitions formed by dividing the accommodation cavity <NUM> may be adjusted, and the flexibility of dividing the accommodation cavity <NUM> is improved.

The second partition frame <NUM> includes a partition body for dividing the accommodation cavity <NUM>, and the vertical plane where the partition body is located is defined as the partition plane of the second partition frame <NUM>. A transverse width of the accommodation cavity <NUM> (that is, a spacing between the pair of second side walls 31b) is greater than a longitudinal width of the accommodation cavity <NUM> (that is, a spacing between the pair of first side walls 31a). Correspondingly, the width of the partition plane of the first partition frame <NUM> is greater than that of the partition plane of the second partition frame <NUM>, i.e., a length of the partition element is greater than that of the partition body.

In the present embodiment, the partition body includes long longitudinal partition bars 331a and 331b which are parallel with each other and arranged spaced apart from each other in the vertical direction.

When the storage device <NUM> is in the folded state, the partition plane of the second partition frame <NUM> is coplanar with the partition plane of the first partition frame <NUM>. The longitudinal partition bars 331a, 331b and the transverse partition bars 332a, 332b all extend in the left-right direction and are located in the same vertical plane. In this way, the occupied space of the second partition frame <NUM> not in use may be reduced, and the cleanliness and aesthetic degree are improved. Referring to <FIG>, when the storage device <NUM> is in the unfolded state, the second partition frame <NUM> is crossed with the first partition frame <NUM>, the accommodation cavity <NUM> may be divided in the front-rear direction by taking the partition plane of the first partition frame <NUM> as a boundary, and in the left-right direction by taking the partition plane of the second partition frame <NUM> as a boundary. At this point, a non-zero included angle is formed between the partition plane of the second partition frame <NUM> and the partition plane of the first partition frame <NUM>. In the present embodiment, at this point, the partition plane of the second partition frame <NUM> is perpendicular to the partition plane of the first partition frame <NUM>. Specifically, the longitudinal partition bars 331a, 331b extend in the front-rear direction, the transverse partition bars 332a, 332b extend in the left-right direction, and the longitudinal partition bars 331a, 331b are perpendicular to the transverse partition bars 332a, 332b.

Further, the partition element may further include a glass partition plate (not shown), which is selectively assembled by a user between the transverse partition bars 332a and 332b. By providing the partition plate, the articles stored in the storage partitions at front and rear sides of the first partition frame <NUM> are not in contact, which avoids tainting, and prevents the stored articles from sliding down crossly from between the transverse partition bars 332a and 332b. Certainly, the partition plate is not only located between the transverse partition bars 332a and 332b, but also partially extends upwards to above the transverse partition bar 332a, and/or partially extends downwards to below the transverse partition bar 332b.

Further, in the vertical direction, the longitudinal partition bars 331a and 331b are arranged adjacent to each other, the longitudinal partition bar 331a is higher than an upper boundary of the partition element all along (in the present embodiment, the transverse partition bar 332a), and the longitudinal partition bar 331b is lower than a lower boundary of the partition element all along (in the present embodiment, the transverse partition bar 332b). The longitudinal partition bar 331a, the transverse partition bars 332a, the partition plate, the transverse partition bar 332b, and the longitudinal partition bar 331b are arranged sequentially in the vertical direction. In this way, when the storage device <NUM> is in the folded state, the second partition frame <NUM> does not interfere with the partition plate.

The second partition frame <NUM> further includes a pair of connecting rods 331c for connecting the end portions of the longitudinal partition bars 331a and 331b, and the connecting rods 331c are provided to be coplanar with the longitudinal partition bars 331a, 331b. When the storage device <NUM> is in the folded state, the pair of connecting rods 331c abuts against the transverse partition bars 332a, 332b, and is located at front and rear sides of the first partition frame <NUM>.

Further, the second partition frame <NUM> may also be slideably connected onto the first partition frame <NUM> through the regulating assembly <NUM>. That is, the second partition frame <NUM> is slideable with respect to the first partition frame <NUM> and rotatable around the vertical axis t2. In this way, on the one hand, the number of storage partitions formed by dividing the accommodation cavity <NUM> may be adjusted; on the other hand, the size of the storage partition may be adjusted, and the flexibility of dividing the accommodation cavity <NUM> is improved.

The above-mentioned second partition frame <NUM> may be slideably connected onto the first partition frame <NUM> through the regulating assembly <NUM> in a plurality of manners. Firstly, the first partition frame <NUM> is not slideably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is slideably connected to the regulating assembly <NUM>, thereby adjusting the size/number of the storage partition formed by dividing the accommodation cavity <NUM> by the first partition frame <NUM> in the front-rear direction; secondly, the first partition frame <NUM> is slideably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is not slideably connected to the regulating assembly <NUM>, thereby adjusting the size/number of the storage partitions formed by dividing the accommodation cavity <NUM> by the second partition frame <NUM> in the left-right direction; thirdly, as in the present embodiment, the first partition frame <NUM> is slideably connected to the regulating assembly <NUM>, and the second partition frame <NUM> is also slideably connected to the regulating assembly <NUM>, thereby regulating the size/number of the storage partitions formed by dividing the accommodation cavity <NUM> by the first and second partition frames <NUM> and <NUM> in the front-rear direction and the left-right direction, and further improving the flexibility.

In the present embodiment, two regulating assemblys <NUM> are provided, one of which is fitted and connected with the longitudinal and transverse partition bars 331a, 332a, and the other of which is fitted and connected with the longitudinal and transverse partition bars 331b, 332b. The structure of the regulating assembly <NUM> will be introduced below with reference to <FIG> by taking the match and connection with the longitudinal and transverse partition bars 331a, 332a as an example.

The regulating assembly <NUM> includes a first regulating mechanism 34b and a second regulating mechanism 34a. The first regulating mechanism 34b is fitted and connected to one of the first and second partition frames <NUM> and <NUM>, and the second regulating mechanism 34a is fitted and connected to the other of the first and second partition frames <NUM> and <NUM>. In the present embodiment, the first regulation mechanism 34b is fitted and connected to the first partition frame <NUM>, and the second regulating mechanism 34a is fitted and connected to the second partition frame <NUM>.

The first regulating mechanism 34b includes a pivot member <NUM>, a fixing member <NUM>, cushion block members <NUM> and a first passage <NUM> formed between the cushion block members <NUM> and the fixing member <NUM>, wherein the fixing member <NUM> includes a mounting hole <NUM>, a locating hole <NUM> and a groove <NUM>, the cushion block member <NUM> includes a locating pin <NUM> and a mounting hole <NUM>, the mounting holes <NUM> and <NUM> correspond to each other and are in threaded connection with screws <NUM>, the locating pin <NUM> is inserted in the locating hole <NUM> to facilitate the assembly and location of the fixing member <NUM> and the cushion block members <NUM>; the first passage <NUM> located at the groove <NUM> is enclosed by the cushion block members <NUM> and the fixing member <NUM>. The transverse partition bar 332a slideably passes through the first passage <NUM>, such that the first regulating mechanism 34b is slideably fitted and connected with the transverse partition bar 332a in the left-right direction (that is, the first regulating mechanism 34b may slide along the transverse partition bar 332a in the left-right direction), thereby slideably connecting the regulating assembly <NUM> onto the first partition frame <NUM> in the left-right direction.

The second regulating mechanism 34a includes an end cover member <NUM>, a sleeve member <NUM> and a second passage <NUM> formed therebetween, wherein the end cover member <NUM> includes a hook <NUM> and a groove <NUM>, the sleeve member <NUM> includes a slot <NUM> matched with the hook <NUM>, and a groove <NUM>; the end cover member <NUM> and the sleeve member <NUM> may be fitted and connected in the vertical direction and are fastened and fixed through the hook <NUM> and the slot <NUM>; the second passage <NUM> is enclosed by the grooves <NUM> and <NUM>. The longitudinal partition bar 331a slideably passes through the second passage <NUM>, such that the second regulating mechanism 34a is slideably fitted and connected with the longitudinal partition bar 331a (that is, the second regulating mechanism 34a may slide along the longitudinal partition bar 331a), thereby slideably connecting the regulating assembly <NUM> onto the second partition frame <NUM>.

Preferably, the sleeve member <NUM> further includes an inclined guiding surface <NUM> to guide the hook <NUM> to be smoothly matched connected at the slot <NUM>.

Further, the first regulating mechanism 34b is rotatably matched with and connected to the second regulating mechanism 34a through the pivot member <NUM>. Specifically, the pivot member <NUM> includes a member body <NUM> with a hanging portion <NUM> and a matching portion <NUM> which are arranged in a shape of steps and are cylindrical respectively; correspondingly, the sleeve member <NUM> has a mounting passage <NUM> matched with the pivot member <NUM>, the diameter of the hanging portion <NUM> is greater than that of the mounting passage <NUM>, and the diameter of the matching portion <NUM> is equal to or slightly less than that of the mounting passage <NUM>. In the assembly, the pivot member <NUM> may be fitted and connected with the sleeve member <NUM> vertically downwards from one side (that is, the side close to the end cover member <NUM>) above the sleeve member <NUM>, and the matching portion <NUM> penetrates through the mounting passage <NUM> and the hanging portion <NUM> is limited by the sleeve member <NUM>, such that the pivot member <NUM> is undetachably assembled onto the sleeve member <NUM> vertically downwards.

The pivot member <NUM> includes a mated surface <NUM> formed at an outer surface of the matching portion <NUM>, the sleeve member <NUM> includes a mating surface <NUM> formed at an inner wall of the mounting passage <NUM>, and the mating surface <NUM> is fitted with the mated surface <NUM>, such that the pivot member <NUM> is rotatably fitted in the mounting passage <NUM>. In the present embodiment, the pivot member <NUM> has a central axis which defines a vertical axis t2.

One end of the matching portion <NUM> of the pivot member <NUM> is provided with a mounting hole <NUM> which is fitted with the screw <NUM>, such that the pivot member <NUM> is fixedly connected onto the fixing member <NUM>.

Further, when the first regulating mechanism 34b is rotated with respect to the second regulating mechanism 34a, driven by the first and second regulating mechanisms 34b and 34a respectively, the transverse partition bar 332a is rotated with respect to the longitudinal partition bar 331a, thereby rotating the first partition frame <NUM> with respect to the second partition frame <NUM>. In the present embodiment, by taking the body <NUM> as a reference, the second regulating mechanism 34a is rotated around the vertical axis t2, while the first regulating mechanism 34b is not rotated.

Further, the sleeve member <NUM> further includes at least two locating grooves <NUM> recessed on the mating surface <NUM> (that is, the inner wall of the mounting passage <NUM>). The matching portion <NUM> of the member body <NUM> is provided with a mating hole <NUM> extending horizontally; the pivot member <NUM> further includes an elastic extensible element <NUM> connected onto the member body <NUM>, the elastic extensible element <NUM> is arranged in the mating hole <NUM> and at least a part of the elastic extensible element <NUM> in a free state protrudes from the mated surface <NUM> (that is, the outer surface of the matching portion <NUM>).

When the first regulating mechanism 34b is rotated around the vertical axis t2 with respect to the second regulating mechanism 34a, at a position between two adjacent locating grooves <NUM>, by being butted against the mating surface <NUM>, the elastic extensible element <NUM> is compressed and deformed and contracted towards the mating hole <NUM>; at the locating groove <NUM>, under the action of the self-resilience, the elastic extensible element <NUM> at least partially protrudes from the mated surface <NUM> and is stuck in the locating groove <NUM>, so as to implement the rotational location of the first and second regulating mechanisms 34b and 34a.

Specifically, the elastic extensible element <NUM> includes an elastic portion <NUM> penetrating through the mating hole <NUM> and balls <NUM> arranged at the end portions of the elastic portion <NUM> in a rollable manner. When the first regulating mechanism 34b is rotated around the vertical axis t2 with respect to the second regulating mechanism 34a, at a position between two adjacent locating grooves <NUM>, by being butted against the mating surface <NUM>, the elastic portion <NUM> is compressed and deformed, and the balls <NUM> are contracted towards the mating hole <NUM> and roll along the mating surface <NUM>; at the locating groove <NUM>, under the action of the self-resilience of the elastic portion <NUM>, the balls <NUM> protrude from the mated surface <NUM> and are stuck in the locating grooves <NUM>, so as to implement the rotational location of the first and second regulating mechanisms 34b and 34a.

In the present embodiment, four locating grooves <NUM> are arranged to quarter a circumference. In this way, when the first and second regulating mechanisms 34b and 34a are rotated around the vertical axis t2 with respect to each other, the balls <NUM> move into the other adjacent locating groove <NUM> from one locating groove <NUM>, such that the storage device <NUM> is switched between the folded state and the unfolded state correspondingly.

Specifically, when the second partition frame <NUM> is rotated around the vertical axis t2 with respect to the first partition frame <NUM>, by taking the process of switching the storage device <NUM> from the folded state to the unfolded state (contrary to the process of switching the storage device <NUM> from the unfolded state to the folded state ) as an example:.

Further, in the present embodiment, the mating hole <NUM> extends horizontally and runs through the member body <NUM>; two balls <NUM> are arranged at two ends of the elastic portion <NUM> in a rollable manner respectively. When the first regulating mechanism 34b is rotated around the vertical axis t2 with respect to the second regulating mechanism 34a, by being butted against the mating surface <NUM>, the elastic portion <NUM> is compressed and deformed, and the two balls <NUM> are both contracted towards the mating hole <NUM> and roll along the mating surface <NUM>; at the locating groove <NUM>, under the action of the self-resilience of the elastic portion <NUM>, the two balls <NUM> protrude from the mated surface <NUM> and are stuck in corresponding locating grooves <NUM> synchronously, so as to further reduce a rotational resistance.

Claim 1:
A storage device (<NUM>), comprising a body (<NUM>) enclosing an accommodation cavity (<NUM>), a pair of guiding mechanisms (<NUM>) and a first partition frame (<NUM>) for dividing the accommodation cavity (<NUM>), the body (<NUM>) comprising a bottom wall, a pair of first side walls (11a) and a pair of second side walls (11b), wherein the pair of guiding mechanisms (<NUM>) is arranged at the pair of second side walls (11b) respectively, the guiding mechanism (<NUM>) comprises a guiding element (12b) which slides in a front-rear direction with respect to the body (<NUM>), the guiding element (12b) comprises a mounting hole (12d) extending in the front-rear direction and a limiting portion (12e); the first partition frame (<NUM>) comprises a partition element, a pair of fixing portions (132d) and a pair of limited portions (132e), the partition element extends in a left-right direction, for dividing the accommodation cavity(<NUM>), the pair of fixing portions (132d) are provided to be long rods extending in the front-rear direction and are formed at two ends of the first partition frame (<NUM>); characterized in that the fixing portion (132d) is inserted into the mounting hole (12d) in a forward horizontal direction, such that the first partition frame (<NUM>) is slidably connected onto the guiding element (12b) synchronously, and at this point, the fixing portion (132d) and the mounting hole (12d) are limited mutually in the left-right direction, so that the fixing portion (132d) cannot move left and right with respect to the guiding element (12b), and the limiting portion (12e) is fitted and connected with the limited portion (132e) to limit the front-rear direction movement of the first partition frame (<NUM>) with respect to the guiding element (12b).