Fixing device

A fixing device includes a pedestal (10), provided with a first chute (11) extending along a first direction, a first limiting part being provided in the first chute (11); a bracket (20), detachably provided on the pedestal (10), wherein a slide block (21) is provided on the bracket (20), a limited part adapted to the first limiting part in shape is provided on the slide block (21), and the first limiting part and the limited part form a buckled structure so as to fix the bracket (20) on the pedestal (10) along a vertical direction; and a connecting arm (30), wherein a first end of the connecting arm (30) is provided on the bracket (20), and a mounting part (31) connected with a display screen is provided at a second end of the connecting arm (30). By the matching between the slide block (21) and the first chute (11), the first limiting part and the limited part form the buckled structure, so that the fixing device is reusable and convenient to assemble and disassemble.

TECHNICAL FIELD OF THE DISCLOSURE

The disclosure relates to a fixing device.

BACKGROUND OF THE DISCLOSURE

At present, in order to display a display panel such as a LED display screen, a billboard, or a television wall for the public, it is necessary to mount the display panel on a fixing device. Most of fixing devices in the prior art are connected into a fixed through welded profiles, and then are connected with the display panel through bolts. To assemble the fixing device is not only time-consuming and labor-consuming, but also not reusable.

SUMMARY OF THE DISCLOSURE

A purpose of the disclosure is to provide a fixing device which is reusable and convenient to assemble and disassemble.

In order to achieve the purpose, the disclosure provides a fixing device, including: a pedestal, provided with a first chute extending along a first direction, a first limiting part being provided in the first chute; a bracket, detachably provided on the pedestal, wherein a slide block is provided on the bracket, a limited part adapted to the first limiting part in shape is provided on the slide block, and the first limiting part and the limited part form a buckled structure so as to fix the bracket on the pedestal along a vertical direction; and a connecting arm, wherein a first end of the connecting arm is provided on the bracket, and a mounting part connected with a display screen is provided at a second end of the connecting arm.

Further, the bracket includes a first connecting block, a second connecting block, and a vertical rod connected between the first connecting block and the second connecting block; the slide block is provided on the side, away from the second connecting block, of the first connecting block, a second chute is formed in the side, away from the first connecting block, of the second connecting block, and a second limiting part adapted to the limited part in shape is provided in the second chute.

Further, the bracket further includes a first fastener, and the slide block can move along an axial direction of the vertical rod under the action of the first fastener.

Further, the first connecting block is provided with a first through hole extending along the vertical direction; the first fastener includes: a locking rod, provided through the first through hole, wherein a first end of the locking rod is connected with the slide block, and an external thread is provided at a second end of the locking rod; an operating handle, wherein a locking part is formed at a first end of the operating handle, and the locking part is provided with an eccentric hole and an avoiding hole for avoiding the locking rod, an axis of the eccentric hole is perpendicular to that of the locking rod, and an axis of the avoiding hole is perpendicular to that of the eccentric hole; a rotating shaft, provided through the eccentric hole, wherein a first screw hole extending along an axial direction of the locking rod is provided in the rotating shaft, and the first screw hole is matched with the external thread of the locking rod, wherein, a position of the avoiding hole corresponds to that of the first screw hole.

Further, the first fastener further includes an elastic element; and the elastic element is provided on the locking rod in a sleeving way, and is positioned between the slide block and the first connecting block.

Further, the vertical rod is a cylindrical rod; a circular ring with a notch is provided at a first end of the connecting arm, and the circular ring is provided on the vertical rod in a sleeving way; and two lugs are provided on an edge of the notch of the circular ring, and the two lugs are connected through a second fastener so as to fix the circular ring and the corresponding vertical rod.

Further, there are two vertical rods, the connecting arm is provided on one of the two vertical rods, and a semicircular avoiding groove adapted to a surface of the other of the two vertical rods is provided in the connecting arm.

Further, the first limiting part is a limiting bump provided on an inner sidewall of the first chute.

Further, a first screw hole is provided in the pedestal; the fixing device further includes a support seat, and the support seat is provided with a screw matched with the first screw hole.

Further, a blocking bump for blocking the slide block to move along the first direction are provided in the first chute.

Further, there is a plurality of brackets; and there is a plurality of pedestals provided side by side along a direction perpendicular to the first direction, and at least one bracket is provided on each pedestal.

Further, a locating bump is provided on each pedestal; the fixing device further includes a locating base, and a first locating hole matched with the locating bump is provided in the locating base.

Further, there is a plurality of locating bases, a hook is provided at a first end of the locating base, a first accommodation groove for accommodating the hook is provided in a second end of the locating base, and the first accommodation groove is provided with a column matched with the hook, and the hook is connected with the column to connect the adjacent locating bases with each other along a direction perpendicular to the first direction.

Further, a second accommodation groove for accommodating the hook is provided in the first end of the locating base, the hook is provided in the second accommodation groove in a pivoting way through a spindle, and an end part of the spindle forms a driving end.

By the technical solution of the disclosure, when the fixing device is assembled, the pedestal is placed on the ground, and the slide block on the bracket can slide into the first chute of the pedestal. The first chute is provided with the first limiting part, and the limited part adapted to the first limiting part in shape is provided on the slide block. The first limiting part and the limited part can form the buckled structure when being matched, so that the bracket can be conveniently fixed on the pedestal without any tools. The first end of the connecting arm is provided on the bracket, and the mounting part is provided at the second end of the connecting arm capable of connecting with the display screen. Thus, it is convenient to fix the connecting arm only by connecting the display screen to the connecting arm. When the fixing device needs to be disassembled, the bracket can be separated from the pedestal only by sliding the slide block out of the first chute. From the above, the fixing device of the disclosure is reusable and convenient to assemble and disassemble.

Wherein, drawing reference numerals in the drawings are as follows:

DETAILED DESCRIPTION OF THE EMBODIMENTS

It should be noted that the embodiments of the disclosure and the characteristics in the embodiments can be combined under the condition of no conflicts. The disclosure is descried below with reference to the drawings and embodiments in detail.

As shown inFIG. 1,FIG. 2andFIG. 7, a fixing device of an embodiment 1 includes a pedestal10, a bracket20, and a connecting arm30. A first chute11extending along a first direction is provided in the pedestal10, and a first limiting part is provided in the first chute11. The bracket20is detachably provided on the pedestal10, a slide block21is provided on the bracket20, and a limited part adapted to the first limiting part is provided on the slide block21. A first end of the connecting arm30is provided on the bracket20, and a second end of the connecting arm30is provided with a display screen mounting part31. Wherein, the first limiting part and the limited part forms a buckled structure, and the buckled structure makes the bracket20is fixed on the pedestal10in a vertical direction.

When the fixing device of the embodiment 1 is assembled, the pedestal10is placed on the ground, and the slide block21on the bracket20can slide into the first chute11of the pedestal10. The first chute11is provided with the first limiting part, and the limited part adapted to the first limiting part in shape is provided on the slide block21. Because the first limiting part and the limited part can form the buckled structure when being matched, thus, the bracket20can be conveniently fixed on the pedestal10without any tools. The first end of the connecting arm30is provided on the bracket20, and the second end of the connecting arm30is provided with the display screen mounting part31capable of connecting to a display screen. Thus, it is convenient to fix the connecting arm30only by connecting the display screen to the connecting arm30. When the fixing device of the embodiment 1 needs to be disassembled, the bracket20can be separated from the pedestal10only by sliding the slide block21out of the first chute11. From the above, the fixing device of the embodiment 1 is reusable and convenient to assemble and disassemble.

As shown inFIG. 2andFIG. 3, in the embodiment 1, the bracket20includes a first connecting block24, a second connecting block25, and a vertical rod23connected between the first connecting block24and the second connecting block25. The slide block21is provided on the side, away from the second connecting block25, of the first connecting block24, a second chute251is provided in the side, away from the first connecting block24, of the second connecting block25, and a second limiting part adapted to the limited part in shape is provided in the second chute251. Therefore, the structure abovementioned facilitates to make a plurality of brackets20overlapped with each other along a vertical direction, and specifically, the slide block21of one bracket20slides into the second chute251of another bracket20which has been mounted on the pedestal10, then the two brackets20can be connected together along the vertical direction, and the slide block21is limited in the second chute251along the vertical direction through the second limiting part. On one hand, according to a height of the LED display screen, a plurality of brackets20are overlapped to a height adapted to the LED display screen. On the other hand, when a total height of the fixing device comes to a certain height, a height of the bracket20, i.e. a length of the vertical rod23, can be shortened by increasing the number of the brackets20so as to facilitate the transportation of the brackets20. In order to prevent the relative movement between two brackets20along a horizontal direction, two ends of the second connecting block25in the embodiment 1 are detachably connected to a blocking block, and the blocking block is used for blocking the second chute251. After the slide block21is inserted into the first chute11or the second chute251, two ends of the second connecting blocks25are connected to the blocking block.

In the embodiment 1, the first limiting part is preferably a limiting bump provided on inner sidewall of the first chute11, and the second chute251has a same structure as the first chute11. As a feasible way, the first chute11can be a dovetail groove, a longitudinal section of the slide block21is a trapezoid adapted to a sectional shape of the first chute11, and the first limiting part of the first chute11limits the slide block21along the vertical direction.

In the embodiment 1, the first connecting block24is provided with a first through hole extending along a vertical direction. The bracket20further includes a first fastener22, and the slide block21can move along an axial direction of the vertical rod23under the action of the first fastener22. When the first limiting part of the first chute11closely clings to the limited part of the slide block21, the first fastener22is driven to drive the slide block21to move towards the limiting bump of the first chute11or the second chute251so as to make the slide block21closely cling to the limiting bump. The bracket20will not sway in the vertical direction, and under the action of frictional force between the slide block21and the limiting bump, the bracket20provided on the pedestal10will not move relative to the pedestal10along the horizontal direction. As a feasible implementation mode, the first fastener22could be a bolt, and a bolt bar passes through the first through hole to form a threaded connection with the slide block21, and the bolt bar can be moved relative to the slide block21by rotating bolt head to realize a movement of the slide block21along the an axial direction of the vertical rod23.

As shown inFIG. 4, in the embodiment 1, the first fastener22includes a locking rod221, an operating handle222, and a rotating shaft223. The locking rod221is provided through the first through hole, a first end of the locking rod221is connected with the slide block21, and an external thread is provided at a second end of the locking rod221. A locking part is formed at a first end of the operating handle222, and the locking part is provided with an eccentric hole, and an avoiding hole for avoiding the locking rod221, an axis of the eccentric hole is perpendicular to that of the locking rod221, and an axis of the avoiding hole is perpendicular to that of the eccentric hole. The rotating shaft223is provided through the eccentric hole of the operating handle222, a first screw hole extending along an axial direction of the locking rod221is provided in the rotating shaft223, and the first screw hole is matched with an external thread of the locking rod221, and a position of the avoiding hole corresponds to that of the first screw hole. The first end of the locking rod221and the slide block21should only satisfy not to rotate relative to each other, and preferably are fixedly connected.

In the embodiment 1, when the first limiting part of the first chute11closely clings to the limited part of the slide block21, the operating handle222rotates around the rotating shaft so as to make the distance between the rotating shaft223and the first connecting block24shortest. The operating handle222rotates around the locking rods221, and the operating handle222drives the rotating shaft223to rotate. The locking rod221moves relative to the rotating shaft223in the axial direction of the locking rod221, and the locking rod221drives the slide block21to move towards the operating handle222, and the slide block21closely clings to the limiting bump. Then, the operating handle222reversely rotates around the rotating shaft223to make the distance between the rotating shaft223and the first connecting block24maximally. At this moment, the slide block21more closely clings to the limiting bump so as to increase a frictional force between the slide block21and the limiting bump, thereby making the connection between the bracket20and the bracket20, or between the bracket20and the pedestal10more reliably.

As shown inFIG. 4, in the embodiment 1, the first fastener22further includes an elastic element225. The elastic element225is provided on the locking rod221in a sleeving way, and is positioned between the slide block21and the first connecting block24. When the slide block21is separated from the first chute11or the second chute251, the slide block21is separated from the first connecting block24under the action of elasticity of the elastic element225. Therefore, the elastic element225facilitates the slide block21to slide into the first chute11or the second chute251.

As shown inFIG. 3andFIG. 5, in the embodiment 1, the vertical rod23is a cylindrical rod, a circular ring32with a notch is provided at a first end of the connecting arm30, and the circular ring32is provided on the vertical rod23in the sleeving way, and two lugs33are provided on an edge of the notch of the circular ring32. The connecting arm30further includes a second fastener34, and the second fastener34is provided through the two lugs33, and the second fastener34fixes the circular ring32on the vertical rod23. In the embodiment 1, the second fastener34has same structure as the first fastener22. Of course, as a feasible implementation mode, the second fastener34can also adopt a bolt.

As shown inFIG. 3andFIG. 6, in the embodiment 1, there are two vertical rods23, the connecting arm30is provided on one of the two vertical rods23, and a semicircular avoiding groove35adapted to a surface of the other of the two vertical rods23is provided in the connecting arm30. When the bracket20is transported, the connecting arms30are rotated to make the semicircular avoiding groove35cling to the surface of the vertical rod23, so that a size of the bracket20is reduced to facilitate transportation. In the embodiment 1, in order to improve the stability of the two vertical rods23, a cross bar26is connected between the two vertical rods23.

As shown inFIG. 7andFIG. 8, in the embodiment 1, two first screw holes13are provided in the pedestal10. The fixing device of the embodiment 1 further includes a support seat50, and the support seat50is provided with a screw51matched with the first screw hole13. By the matching between the first screw hole13and the screw51, the pedestal10can ascend and descend so as to further adjust the horizontal levelness of the fixing device of embodiment 1.

In the embodiment 1, a blocking bump for blocking the slide block21to move along a first direction is provided in the first chute11. The slide block21is fixed at specified position under a blocking function of the blocking bump, thereby improving the levelness of the LED display screen.

As shown inFIG. 1, in the embodiment 1, there is a plurality of the brackets20and a plurality of pedestals10, and one or two brackets20are provided on each pedestal10. To provide a plurality of pedestals10can reduce the size of the pedestal so as to facilitate the transportation of the pedestal. In the embodiment 1, the plurality of pedestals10are provided side by side along a direction perpendicular to the first direction, and such a way improves the stability. As a feasible mode, when the plurality of pedestals10are provided side by side, it needs to rotate the connecting arm30to a position parallel to the pedestal10.

As shown inFIG. 8andFIG. 9, in the embodiment 1, a locating bump12is provided on each pedestal10. The fixing device of the embodiment 1 further includes a locating base40, provided with a plurality of first locating holes41matched with the locating bumps12. As shown inFIG. 1,FIG. 10andFIG. 12, there is a plurality of locating bases40. A hook42is provided at first end of the locating base40, a first accommodation groove43for accommodating the hook42is provided in a second end of the locating base40. The first accommodation groove43is provided with a column44matched with the hook42, and the hook42is connected with the column44so as to connect every two adjacent locating bases40with each other along the direction perpendicular to the first direction. By such a way, the plurality of locating bases40can be conveniently connected with one another.

As shown inFIG. 10andFIG. 11, a second accommodation groove45for accommodating the hook42is provided in the first end of the locating base40, the hook42is provided in the second accommodation groove45in a pivoting way through a spindle46, and an end part of the spindle46forms a driving end. When the locating base40is transported, the driving end of the spindle46can be rotated to rotate the hook42into the second accommodation groove45, and such a way can make the transportation of the locating base40more conveniently.

As shown inFIG. 13, a difference between a fixing device of an embodiment 2 and the fixing device of the embodiment 1 is that a bump is also provided on the pedestal10, and the first chute11is formed on the bump. The assembly and disassembly processes of the fixing device of the embodiment 2 are similar to those of the fixing device of the embodiment 1, and will not be repeated here.

The above is only the preferred embodiment of the disclosure and not intended to limit the disclosure. For those skilled in the art, the disclosure can have various modifications and variations. Any modifications, equivalent replacements, improvements and the like within the spirit and principle of the disclosure shall fall within the scope of protection of the disclosure.