Patent Description:
The present application relates to the technical field of escalators, and in particular to an embedded type updating escalator.

An escalator is a stationary electric drive device with stairs circulating upward or downward to transport passengers. The escalator can continuously transport passengers and has high transportation capacity, and is therefore widely used in public places with large traffic such as a shopping mall or a station.

The escalator is composed of a truss, stairs, stair guide rails, stair chains, a tractor, skirt plates, inner and outer cover plates, a handrail system, and an electrical control system. The truss is the basic bearing and supporting component of the escalator, and other components of the escalator are born by the truss. The truss is also the largest and heaviest of the components of the escalator. As shown in <FIG>, the original truss <NUM> of the escalator is mounted on a building <NUM>, and the original truss <NUM> may be partially embedded into the building <NUM> if necessary. The existing escalator is generally designed together with the building and is adaptively mounted to the building. The escalator can be repaired by replacing some components when it is damaged. However, when the overall escalator needs to be updated, it is difficult to do so by replacing the components one by one, and the original escalator has to be completely removed, so does the old truss, and then the new escalator can be mounted, which is time-consuming and labor-intensive. During the removal, the old truss needs to be removed, which may inevitably cause damage to the building and thus further increase the cost of update. Prior art patent document <CIT> disclosed a passenger conveyor renewal method in which a new truss to be installed in the interior space of an existing truss is divided into multiple truss segments in the longitudinal direction. These truss segments are sequentially installed in the interior space of the existing truss. In the construction method, a new truss is constructed by sequentially conveying the plurality of truss segments along the existing truss and connecting the front and rear truss segments to each other, and within the new truss, a pair of left and right sections that constitute a passenger conveyor are installed. A pair of left and right guide rails is provided to guide the movement of the step chain. A transport vehicle is constructed on the pair of guide rails. Prior art patent document <CIT> disclosed a passenger conveyor renewal method in which a new frame is installed using a part of the existing frame, which is a strength member, the installation space for the new frame is created by cutting the horizontal members extending in the short direction of the existing frame. The method for renewing a passenger conveyor, is characterized in that after securing a new frame and installing a new frame, a member to prevent the existing frame from collapsing is provided on the side surface in the short direction of the new frame.

To sum up, there is a need in the art for an escalator that can be updated and upgraded without removing the original truss, so as to save cost and manpower.

In view of this, an object according to the present application is to provide an embedded type updating escalator which adopts a sectioned truss assembly, where the sections of the truss assembly are embedded into the original truss, and other components of the escalator are mounted in combination with the truss assembly, so as to realize the update of the escalator without removing the original truss.

In order to achieve the above object, an embedded type updating escalator is provided according to the present application, which is mounted in combination with an original truss of an original escalator. The embedded type updating escalator includes a truss assembly, as well as stairs, stair guide rails, stair chains, a traction machine, skirt plates, inner and outer cover plates, a handrail system, and an electrical control system which are mounted in combination with the truss assembly; where the truss assembly includes multiple sections, a transverse width of each section is smaller than an inner transverse width of the original truss, and the multiple sections are embedded into the original truss; the original truss is provided with multiple transverse bar members, and the sections are embedded into the original truss to avoid the transverse bar members. Each section includes two upper chord members and two lower chord members, where the upper and lower chord members each have an angle steel structure, the two upper chord members are fixed to two sides of an upper portion of the corresponding section respectively, the two lower chord members are fixed to two sides of a lower portion of the corresponding section respectively; a transverse edge of each upper chord member extends away from the corresponding section, and a transverse edge of each lower chord member extends toward an interior of the corresponding section.

Preferably, the original truss includes a lower portion, a middle portion and an upper portion, where the lower portion and the upper portion are parallel and horizontal, the middle portion is obliquely located between the lower portion and the upper portion, a bent turning section is provided at the junction between the middle portion and the lower portion, and another bent turning section is provided at the junction between the middle portion and the upper portion.

Preferably, the multiple sections include a lower machine room, a lower turning section, multiple middle sections, an upper turning section and an upper machine room, where the lower machine room is embedded into the lower portion, the lower turning section is embedded into the bent turning section at the junction between the lower portion and the middle portion, the multiple middle sections are embedded into the middle portion, the upper turning section is embedded into the bent turning section at the junction between the middle portion and the upper portion, and the upper machine room is embedded into the upper portion.

Preferably, each section includes two side plates which are located on two sides of the corresponding section respectively, where each side plate is bent to form an upper transverse edge and a lower transverse edge, the upper transverse edge extends away from the corresponding section, and the lower transverse edge extends toward the interior of the corresponding section.

An escalator updating method of use of the embedded type updating escalator is provided according to the present application, which includes:.

Compared with the conventional technology, the advantages of the embedded type updating escalator according to the present application are as follows: the update of the escalator can be realized while the original truss is reserved, which effectively reduces the update cost and saves manpower; the embedded type updating escalator can realize the complete update of the escalator while the original truss is reserved, and the transverse bar members of the original truss can be completely reserved, so the structure of the original truss is not structurally damaged, which ensures the strength of the product and the safety of the updating process of the escalator, and the new escalator has complete functions and meets safety standards.

For more clearly illustrating the technical solutions in the embodiments of the present application or in the conventional technology, drawings referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the drawings in the following description are only several examples of the present application, and for those skilled in the art, other drawings may be obtained based on these drawings without any creative efforts.

Technical solutions in the embodiments of the present application are clearly and completely described hereinafter in conjunction with the drawings in the embodiments of the present application. Apparently, the embodiments described in the following are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all of the other embodiments which are obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

As shown in <FIG>, an original truss <NUM> of an original escalator with other components removed has a lower portion <NUM>, a middle portion <NUM> and an upper portion <NUM>, where the lower portion <NUM> and the upper portion <NUM> are parallel and horizontal, the lower portion <NUM> and the upper portion <NUM> are respectively connected to different floors, and the middle portion <NUM> is obliquely located between the lower portion <NUM> and the upper portion <NUM>. A bent turning section is provided at the junction between the middle portion <NUM> and the lower portion <NUM>, and another bent turning section is provided at the junction between the middle portion <NUM> and the upper portion <NUM>. The middle portion <NUM> of the original truss <NUM> has multiple transverse bar members <NUM> which are distributed in parallel.

Referring to <FIG>, an embedded type updating escalator according to the present application includes a truss assembly, as well as stairs, stair guide rails, stair chains, a traction machine, skirt plates, inner and outer cover plates, a handrail system, and an electrical control system which are mounted in combination with the truss assembly. The truss assembly includes multiple sections, and the multiple sections specifically include a lower machine room <NUM>, a lower turning section <NUM>, multiple middle sections <NUM>, an upper turning section <NUM> and an upper machine room <NUM>. Widths of the lower machine room <NUM>, the lower turning section <NUM>, the multiple middle sections <NUM>, the upper turning section <NUM> and the upper machine room <NUM> are smaller than an inner transverse width of the original truss <NUM>, so that they can be embedded into the original truss <NUM>. The lower machine room <NUM>, the lower turning section <NUM>, the multiple middle sections <NUM>, the upper turning section <NUM> and the upper machine room <NUM> are embedded into corresponding positions of the original truss <NUM> respectively to avoid the transverse bar members <NUM> at the corresponding positions, and then other components of the embedded type updating escalator are mounted. The embedded type updating escalator can completely maintain the strength of the original truss <NUM>.

Specifically, as shown in <FIG>, the lower machine room <NUM> is embedded into the lower portion <NUM>, the lower turning section <NUM> is embedded into the junction between the lower portion <NUM> and the middle portion <NUM>, the multiple middle sections <NUM> are embedded into the middle portion <NUM>, the upper turning section <NUM> is embedded into the junction between the middle portion <NUM> and the upper portion <NUM>, and the upper machine room <NUM> is embedded into the upper portion <NUM>.

As shown in <FIG>, the original truss <NUM> includes two upper chord members <NUM> and two lower chord members <NUM>, where the upper chord members <NUM> and the lower chord members <NUM> each have an angle steel structure, the two upper chord members <NUM> are welded to two sides of an upper portion of the original truss <NUM> respectively, the two lower chord members <NUM> are welded to two sides of a lower portion of the original truss <NUM> respectively, and transverse edges of the upper chord members <NUM> and the lower chord members <NUM> extend toward an interior of the original truss <NUM>.

As shown in <FIG>, the original truss <NUM> includes two chord members 121A and two lower chord members 122A, where the upper chord members 121A and the lower chord members 122A each have an rectangular tube structure, the two upper chord members 121A are welded to two sides of the upper portion of the original truss <NUM> respectively, and the two lower chord members 122A are welded to two sides of the lower portion of the original truss <NUM> respectively.

In order to embed the sections of the truss assembly into the original truss <NUM>, the chord members of the truss assembly are arranged as shown in <FIG>. As shown in <FIG>, the arrangement of the chord members on each middle section <NUM> is taken as an example for description, the arrangement of the chord members of the lower machine room <NUM>, the lower turning section <NUM>, the upper turning section <NUM>, and the upper machine room <NUM> is the same as that of each middle section <NUM>. Each middle section <NUM> includes two upper chord members <NUM> and two lower chord members <NUM>, where the upper chord members <NUM> and the lower chord members <NUM> each have an angle steel structure, the two upper chord members <NUM> are welded to two sides of an upper portion of the corresponding middle section <NUM> respectively, and the two lower chord members <NUM> are welded to two sides of a lower portion of the corresponding middle section <NUM> respectively. A transverse edge of each upper chord member <NUM> extends away from the corresponding middle section <NUM>, and a transverse edge of each lower chord member <NUM> extends toward an interior of the corresponding middle section <NUM>. The arrangement of the chord members of the middle sections <NUM> is beneficial to reducing the transverse width L of the middle sections <NUM>, so that the middle sections <NUM> can be easily embedded into the original truss <NUM>. Correspondingly, since the arrangement of the chord members of the lower machine room <NUM>, the lower turning section <NUM>, the upper turning section <NUM>, and the upper machine room <NUM> is the same as that of each middle section <NUM>, the lower machine room <NUM>, the lower turning section <NUM>, the upper turning section <NUM>, and the upper machine room <NUM> can be easily embedded into the original truss <NUM>. It is worth noting that the upper chord members <NUM> and the lower chord members <NUM> may be made of various materials.

As shown in <FIG>, the structure of bent edges of a side plate can be used by the chord assembly to realize the function of the chord members. Specifically, the middle sections 23A are taken as an example, where each middle section 23A includes two side plates <NUM> which are located on two sides of the corresponding middle section 23A respectively. Each side plate <NUM> has an upper transverse edge <NUM> and a lower transverse edge <NUM> which are formed by bending, the upper transverse edge <NUM> extends away from the corresponding middle section 23A, and the lower transverse edge <NUM> extends toward an interior of the corresponding middle section 23A. By using the structure of bent edges of the side plate, the transverse widths of the sections of the chord assemblies can be further reduced, the number of components of the sections can be reduced, and the structure can be simplified.

Claim 1:
An embedded type updating escalator, mounted in combination with an original truss (<NUM>) of an original escalator, wherein the embedded type updating escalator comprises a truss assembly, as well as stairs, stair guide rails, stair chains, a traction machine, skirt plates, inner and outer cover plates, a handrail system, and an electrical control system which are mounted in combination with the truss assembly; wherein the truss assembly comprises a plurality of sections, a transverse width of each section is smaller than an inner transverse width of the original truss (<NUM>), and the plurality of sections are embedded into the original truss (<NUM>); the original truss (<NUM>) is provided with a plurality of transverse bar members (<NUM>), and the sections are embedded into the original truss (<NUM>) to avoid the transverse bar members (<NUM>),
each section comprises two upper chord members (<NUM>) and two lower chord members (<NUM>), wherein the upper and lower chord members (<NUM>) each have an angle steel structure, the two upper chord members (<NUM>) are fixed to two sides of an upper portion (<NUM>) of the corresponding section respectively, the two lower chord members (<NUM>) are fixed to two sides of a lower portion (<NUM>) of the corresponding section respectively;
the embedded type updating escalator is characterized in that,
a transverse edge of each upper chord member (<NUM>) extends away from the corresponding section, and a transverse edge of each lower chord member (<NUM>) extends toward an interior of the corresponding section.