Escalator step chain assembly line

Abstract

This application relates to an assembly line for escalator step chains, and to the technical field of step chains. The assembly line comprises two sets of chain link devices and a docking device for connecting the two sets of chain link devices. Each set of chain link devices includes a reinforcement mechanism and multiple rollers, all of which are rotatably mounted on the reinforcement mechanism. The docking device includes multiple step shafts and multiple sets of locking mechanisms, all of which are spaced apart between the two sets of chain link devices. Either end of each step shaft is connected to any one of the reinforcement mechanisms via a locking mechanism. This application improves the structural stability and application stability of the step chain.

Description

Technical Field

[0001] The present application relates to the technical field of step chains, and in particular to an assembly line for escalator step chains. Background Art

[0002] An escalator generally refers to a type of transportation equipment that uses a circular ladder structure to transport people or goods. The step chain assembly line is driven by a motor, which is used to install the step plates, which in turn carry people or goods for transportation.

[0003] Most existing step chains include a support plate and a plurality of runners, wherein the plurality of runners are rotatably arranged on the support plate at intervals.

[0004] However, the independent step chain has a problem of low structural stability when in use, and thus needs to be improved. Summary of the Invention

[0005] In order to improve the problem of low structural stability of the step chain during use, the present application provides an assembly line for the escalator step chain.

[0006] The escalator step chain assembly line provided in this application adopts the following technical solutions:

[0007] An assembly line for an escalator step chain includes two sets of chain link devices and a docking device for connecting the two sets of chain link devices; each set of chain link devices includes a reinforcement mechanism and multiple rollers, and all of the rollers are rotatably arranged on the reinforcement mechanism; the docking device includes multiple step shafts and multiple sets of locking mechanisms, all of the step shafts are spaced apart and arranged between the two sets of chain link devices, and either end of each step shaft is connected to any one set of reinforcement mechanisms via a set of locking mechanisms.

[0008] By adopting the above technical solution, the roller is rotatably arranged on the reinforcement mechanism to form a set of single-step rollers; the step shaft is connected to the reinforcement mechanism through a locking mechanism, so that the two sets of reinforcement mechanisms form a whole together for use, thereby improving the structural stability and application stability of the step rollers.

[0009] In a specific feasible implementation scheme, the reinforcement mechanism includes two connecting plates, multiple plug-in shafts and multiple guide seats, one of the plug-in shafts is passed through a roller, and one of the connecting plates is passed through a plug-in shaft, so that the roller is located between the two connecting plates; all the guide seats are respectively arranged on the two connecting plates, and one of the plug-in shafts is rotatably arranged on a guide seat.

[0010] By adopting the above technical solution, the connecting plate is rotatably connected to the connecting plate through the connecting shaft, the guide seat is positioned on the connecting plate, and is used for the connecting shaft to be plugged in and rotated, so that the roller is rotated and set between the two connecting plates, thereby ensuring the rotation stability and application stability of the roller.

[0011] In a specific feasible implementation scheme, each group of the locking mechanism includes a positioning sleeve and a plurality of stop bolts, the positioning sleeve is arranged on any one of the supporting plates, one end of the step shaft is inserted into the side wall of the positioning sleeve, and the stop bolt is used to position the step shaft in the side wall of the positioning sleeve.

[0012] By adopting the above technical solution, the retaining sleeve increases the contact area when the step shaft is connected to the receiving plate, and the stop bolt fixes the retaining sleeve and the step shaft, thereby ensuring the connection strength of the two sets of reinforcement mechanisms and the structural stability of the step roller as a whole application.

[0013] In a specific feasible implementation scheme, the locking mechanism also includes at least one group of anti-pull-out components, each group of the anti-pull-out components includes a correction block and a plurality of support springs; an installation groove is provided in the side wall of the positioning sleeve, one end of all the support springs is provided in the side wall of the installation groove, and the correction block is provided at the other end of all the support springs; a side connecting groove is provided on the step shaft for the correction block to be pressed into.

[0014] By adopting the above technical solution, the correction block is pressed against the inner cavity of the side groove through the elastic thrust of the supporting spring, which greatly improves the connection strength between the step shaft and the positioning sleeve, thereby improving the connection strength of the two sets of step chains and ensuring the overall application stability of the step roller.

[0015] In a specific possible implementation scheme, each group of the anti-pullout components further includes a plurality of docking sleeves, all of the docking sleeves are arranged on the deviation-correcting block, and one of the support springs is located in the inner cavity of one docking sleeve.

[0016] By adopting the above technical solution, the docking sleeve is used to provide lateral support for the deformed support spring, so as to reduce the phenomenon of irreversible deformation of the support spring after being subjected to force, which helps to ensure the service life of the support spring.

[0017] In a specific feasible implementation scheme, each group of the locking mechanism also includes at least one group of reset components, and one group of the reset components corresponds to one group of anti-pullout components; each group of the reset components includes an extension rod, and the extension rod is arranged on the correction block, and the positioning sleeve is penetrated by a movable channel for the extension rod to pass through and displace.

[0018] By adopting the above technical solution, the extension rod is displaced in the movable channel, so that the correction block presses the support spring, and then the correction rod can quickly enter the inner cavity of the installation groove, so that the ladder shaft can be installed or removed on the positioning sleeve.

[0019] In a specific possible implementation scheme, each of the supporting plates includes multiple connecting plates, multiple splicing strips and multiple groups of limiting units, one splicing strip is arranged at one end of the connecting plates, and the other end of each connecting plate is provided with an adapter groove for the splicing strip to be inserted into; a group of limiting units is arranged on a connecting plate to position the splicing strip in the side wall of the adapter groove.

[0020] By adopting the above technical solution, the splicing strip is inserted into the inner cavity of the adapter groove, so that the two connecting plates can be quickly connected. The limiting unit is used to stably position the splicing strip in the side wall of the adapter groove, so that the connecting plate assembled by multiple connecting plates has a certain connection strength at every certain distance, which greatly improves the overall bearing strength of the connecting plate, thereby helping to improve the structural stability and application stability of the ladder chain.

[0021] In a specific possible implementation scheme, each group of the limiting units includes an adapter plate, which is rotatably set on the connecting plate to be used to press the splicing strip against the side wall of the adapter groove; a positioning plane is also provided on the adapter plate, and the positioning plane is used to keep the adapter plate away from the splicing strip.

[0022] By adopting the above technical solution, the adapter plate abuts against the connecting plate and the splicing strip at the same time, so that the splicing strip is positioned in the inner cavity of the adapter groove to ensure the connection strength of adjacent connecting plates; the positioning plane enables the adapter plate to quickly move away from the splicing strip, so that adjacent connecting plates can be quickly assembled or disassembled.

[0023] In a specific feasible implementation scheme, the reinforcement mechanism also includes multiple sets of fastening components, and the fastening components include abutment blocks, two threading screws and two fastening nuts; the two threading screws are respectively arranged on opposite sides of the abutment block, and each of the connecting plates is provided with a limiting groove for the abutment block to be pressed into, one threading screw is passed through a connecting plate, and one fastening nut is threadedly connected to a threading screw, so that the abutment block is positioned between the two connecting plates.

[0024] By adopting the above technical solution, the abutment block is inserted into the inner cavity of the limiting groove to abut the connecting plate. After the connecting screw passes through the connecting plate, the fastening nut is threadedly tightened on the connecting screw, so that the abutment block is stably positioned between the two connecting plates, thereby greatly improving the connection strength of the connecting plates on both sides of the roller, thereby ensuring the structural strength and application stability of the ladder chain.

[0025] In summary, this application has the following beneficial technical effects:

[0026] 1. By connecting two sets of step chains simultaneously through multiple step shafts, the independent step chains can be used together as a whole, which helps to ensure the overall structural stability and application stability of the step chains.

[0027] 2. The connecting plate is divided into multiple connecting plates that are assembled and connected. The assembly structure between adjacent connecting plates and the fastening components used to connect the connecting plates on both sides of the roller are used to improve the bearing strength of each distance of the bearing plate, thereby greatly improving the overall structural stability of the step roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 1 is a schematic structural diagram of an escalator step chain assembly line in Example 1 of the present application;

[0029] Figure 2 This is an exploded schematic diagram of the connection relationship between the roller, the step shaft and the docking plate in Example 1 of the present application;

[0030] Figure 3 2 is a schematic structural diagram of an escalator step chain assembly line in Example 2 of the present application;

[0031] Figure 4 This is an exploded schematic diagram of the connection relationship of the connecting plates in Example 2 of the present application;

[0032] Figure 5 It is a schematic cross-sectional view along the vertical direction of the connection relationship between the step shaft and the locking sleeve in the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Chain link device; 11. Reinforcement mechanism; 111. Socket plate; 112. Plug-in shaft; 113. Guide seat; 12. Roller; 2. Docking device; 21. Step shaft; 211. Side connection groove; 22. Locking mechanism; 221. Positioning sleeve; 2211. Mounting groove; 2212. Movable channel; 222. Stop bolt; 3. Connecting plate; 31. Adapter groove; 32. Limiting groove; 4. Splicing strip; 5. Limiting unit; 51. Adapter plate; 511. Positioning plane; 6. Fastening assembly; 61. Abutment block; 62. Threading screw; 63. Fastening nut; 7. Anti-pullout assembly; 71. Correction block; 72. Support spring; 73. Docking sleeve; 8. Reset assembly; 81. Extension rod. DETAILED DESCRIPTION

[0035] The embodiment of the present application discloses an assembly line for an escalator step chain.

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] Example 1

[0038] Reference Figure 1The assembly line of the escalator step chain includes a docking device 2 and two sets of chain link devices 1. The docking device 2 is used to connect the two sets of chain link devices 1 so that the two sets of chain link devices 1 can be used as a whole, thereby improving the structural stability of the step chain.

[0039] Reference Figure 2 Each chain link assembly 1 includes a reinforcement mechanism 11 and multiple rollers 12. The reinforcement mechanism further includes two connecting plates 111, multiple connecting shafts 112, and multiple guide seats 113. In this embodiment, the guide seats 113 are bearing seats. All guide seats 113 are welded to the sidewalls of the two connecting plates 111 that are spaced apart from each other. All guide seats 113 on each connecting plate 111 are spaced and evenly spaced along the length of the connecting plate 111.

[0040] Reference Figure 2 A splice shaft 112 passes through each roller 12 and is welded together. The operator places the roller 12 with the splice shaft 112 between two receiving plates 111. Each splice shaft 112 passes through the receiving plate 111 on the same side of the roller 12 and rests against any one of the guide seats 113. At this point, the splice shaft 112 is connected to the receiving plate 111 via the guide seat 113, connecting the two receiving plates 111. The splice shaft 112 rotates on the bearings of the guide seat 113, causing the roller 12 to rotate and be positioned between the two receiving plates 111.

[0041] Reference Figure 2 The locking mechanism 22 includes multiple step shafts 21 and multiple sets of locking mechanisms 22. The two sets of reinforcement mechanisms 11 are spaced apart so that the four receiving plates 111 are parallel to each other. All step shafts 21 are located between the two sets of reinforcement mechanisms 11, and each step shaft 21 is connected at both ends in the longitudinal direction by a set of locking mechanisms 22 and a receiving plate 111.

[0042] Reference Figure 2 Each locking mechanism 22 includes a retaining sleeve 221 and multiple stop bolts 222. The retaining sleeves 221 are welded to the facing sidewalls of the adjacent receiving plates 111 of the two reinforcement mechanisms 11. The end of the step shaft 21 closest to the receiving plate 111 can be inserted into the sidewall of the retaining sleeve 221. The stop bolts 222 pass through the retaining sleeve 221 and threadably engage the thread grooves of the step shaft 21, positioning the step shaft 21 within the sidewall of the retaining sleeve 221. In this manner, multiple step shafts 21 are simultaneously connected to both chain link assemblies 1, allowing the two chain link assemblies 1 to function as a single unit, thereby improving the structural and operational stability of the step chain.

[0043] The implementation principle of the assembly line of the escalator step chain in the embodiment of the present application is as follows: the roller 12 is connected to the receiving plate 111 through the plug-in shaft 112, and is then rotatably connected to the guide seat 113 through the plug-in shaft 112, so as to be rotatably set between the two receiving plates 111, thereby forming a step chain together.

[0044] By connecting two sets of step chains simultaneously through multiple step shafts 21, the two sets of step chains can be used as a whole to improve the overall structural stability of the step chains, thereby helping to ensure the application stability of the step chains after long-term use.

[0045] Example 2

[0046] The difference between Example 2 of the present application and Example 1 is that, referring to Figure 3 and Figure 4 Each receiving plate 111 also includes multiple connecting plates 3, multiple splicing strips 4 and multiple groups of limiting units 5, each group of reinforcement mechanisms 11 also includes multiple groups of fastening components 6, and each group of locking mechanisms 22 also includes at least one group of anti-pullout components 7.

[0047] Reference Figure 4 A receiving plate 111 can be formed by assembling multiple connecting plates 3. In this embodiment, two connecting plates 3 are assembled into a receiving plate 111 to increase the overall length of the step chain, thereby expanding the application range of the step chain.

[0048] Reference Figure 4 The splicing strip 4 is a dovetail-shaped steel strip, integrally formed at one end of the connecting plates 3 in the longitudinal direction. Each connecting plate 3 is also provided with an adapting groove 31, whose inner diameter matches the outer circumference of the splicing strip 4. The adapting groove 31 is located at the end of the connecting plate 3 away from the splicing strip 4. The splicing strip 4 fits into the inner cavity of the adapting groove 31, allowing the two connecting plates 3 to be quickly assembled.

[0049] Reference Figure 4 The limiting units 5 are provided on each connecting plate 3 and are located at the adapting groove 31 to position the splicing strip 4 within the sidewalls of the adapting groove 31. Each set of limiting units 5 includes an adapter plate 51, which is rotatably mounted on the connecting plate 3 via a pin. The adapter plate 51 is also provided with a positioning surface 511, which can keep the adapter plate 51 away from the splicing strip 4.

[0050] Reference Figure 4 When the placement flat surface 511 faces away from the adapting slot 31, the adapter plate 51 presses the splicing strip 4 against the sidewall of the adapting slot 31 to ensure the connection strength of the two connecting plates 3. When the placement flat surface 511 faces the adapting slot 31, the adapter plate 51 is away from the adapting slot 31. At this time, the operator can insert or remove the splicing strip 4 from the adapting slot 31 to connect or disconnect the two connecting plates 3.

[0051] Reference Figure 4 The fastening assembly 6 is used to strengthen the connection strength of the connecting plates 3 on both sides of the chain. The fastening assembly 6 includes an abutment block 61, two threading screws 62, and two fastening nuts 63. The two threading screws 62 are welded to opposite sides of the abutment block 61 in the horizontal direction, and the central axes of the two threading screws 62 are collinear.

[0052] Reference Figure 3 and Figure 4 In this embodiment, four rollers 12 and two abutment blocks 61 are provided between every two connecting plates 3 , wherein the four rollers 12 are located between the two abutment blocks 61 .

[0053] Reference Figure 4 The two connecting plates 3 on either side of the abutment block 61 have limiting grooves 32 on their facing side walls. The inner diameter of the limiting grooves 32 matches the outer circumference of the lengthwise end of the abutment block 61. The abutment block 61 is inserted into the limiting grooves 32 to abut against the connecting plates 3. At this point, a threaded rod 62 passes through one of the connecting plates 3. A fastening nut 63 is threaded onto the threaded rod 62, tightening the abutment block 61 between the two connecting plates 3. This strengthens the connection between the two connecting plates 3 and contributes to the structural and operational stability of the step chain.

[0054] Reference Figure 5 In this embodiment, each locking mechanism 22 includes two sets of anti-pullout components 7, which are arranged opposite each other on the locking sleeve 221. Each set of anti-pullout components 7 includes a correction block 71, multiple support springs 72, and multiple docking sleeves 73. All docking sleeves 73 are welded to the correction block 71 at intervals. One end of each support spring 72 in the longitudinal direction is located in the inner cavity of a docking sleeve 73 and is welded to the correction block 71.

[0055] Reference Figure 5 The sidewall of the positioning sleeve 221 is provided with a mounting slot 2211, and the end of each support spring 72 away from the correction block 71 is welded to the sidewall of the mounting slot 2211. When the support spring 72 is in a freely extended state, the end of the correction block 71 away from the support spring 72 is located outside the mounting slot 2211. When the support spring 72 is compressed, the correction block 71 can fully enter the inner cavity of the mounting slot 2211.

[0056] Reference Figure 5In order to allow the correction block 71 to enter the inner cavity of the installation groove 2211, the locking mechanism 22 also includes at least one set of reset components 8. In this embodiment, the number of reset components 8 can be two groups, and one set of reset components 8 corresponds to one set of anti-pullout components 7. Each set of reset components 8 includes an extension rod 81, and the side wall of the positioning sleeve 221 away from the connecting plate 3 is penetrated by a movable channel 2212 that connects the inner cavity with the installation groove 2211. One end of the extension rod 81 in the length direction is welded to the correction block 71, and the end of the extension rod 81 connected to the correction block 71 is always located in the inner cavity of the installation groove 2211.

[0057] Reference Figure 5 The end of the extension rod 81 away from the correction block 71 passes through the movable channel 2212 and is located outside the positioning sleeve 221. The operator applies force to the correction block 71 through the extension rod 81, compressing the support spring 72, thereby allowing the correction block 71 to fully enter the inner cavity of the installation groove 2211. At this time, the operator can insert the ladder shaft 21 into the side wall of the positioning sleeve 221.

[0058] Reference Figure 4 and Figure 5 The step shaft 21 is provided with a side connection groove 211, the inner diameter of which matches the outer circumference of the correction block 71. When the extension rod 81 is reset, the support spring 72 quickly extends and pushes the correction block 71 back into the inner cavity of the side base groove, thereby strengthening the connection between the step shaft 21 and the retaining sleeve 221, thereby improving the structural stability and application stability of the step chain.

[0059] The implementation principle of the assembly line of the escalator step chain in the embodiment of the present application is as follows: the connecting plate 111 is assembled by multiple connecting plates 3 through splicing strips 4 and limit units 5, and the fastening component 6 reinforces the connecting plates 3 located on both sides of the roller 12 to increase the connection strength of each connecting plate 111 at each interval and the forming strength of each step chain, which helps to improve the structural strength of the step chain.

[0060] The anti-pullout component 7 improves the connection strength between the step shaft 21 and the locking sleeve 221, thereby improving the connection strength of the two groups of step chains used as a whole, thereby helping to improve the overall structural stability and application stability of the step chain.

[0061] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. The assembly line of escalator step chain is characterized by: The invention comprises two groups of chain link devices (1) and a docking device (2) for connecting the two groups of chain link devices (1); each group of the chain link devices (1) comprises a reinforcement mechanism (11) and a plurality of rollers (12), and all the rollers (12) are rotatably arranged on the reinforcement mechanism (11); the docking device (2) comprises a plurality of step shafts (21) and a plurality of locking mechanisms (22), and all the step shafts (21) are arranged at intervals between the two groups of chain link devices (1), and any one end of each step shaft (21) is connected to any one group of reinforcement mechanisms (11) through a group of locking mechanisms (22); the reinforcement mechanism (11) comprises two receiving plates (111), a plurality of plug-in shafts (112) and a plurality of guide seats (113), and a plurality of guide seats (113) are provided. The plug-in shaft (112) is passed through a roller (12), and a receiving plate (111) is passed through a plug-in shaft (112), so that the roller (12) is located between the two receiving plates (111); all the guide seats (113) are respectively arranged on the two receiving plates (111), and one plug-in shaft (112) is rotatably arranged on a guide seat (113); each group of the locking mechanism (22) includes a positioning sleeve (221) and a plurality of stop bolts (222), the positioning sleeve (221) is arranged on any one of the receiving plates (111), one end of the step shaft (21) is inserted into the side wall of the positioning sleeve (221), and the stop bolt (222) is used to make The step shaft (21) is positioned in the side wall of the positioning sleeve (221); the locking mechanism (22) further comprises at least one group of anti-pullout components (7), each group of the anti-pullout components (7) comprises a correction block (71) and a plurality of support springs (72); a mounting groove (2211) is provided in the side wall of the positioning sleeve (221), one end of each of the support springs (72) is provided in the side wall of the mounting groove (2211), and the correction block (71) is provided at the other end of each of the support springs (72); a side connection groove (211) for the correction block (71) to be pressed into is provided on the step shaft (21); each of the receiving plates (111) comprises a plurality of connecting plates (3), a plurality of splicing strips (4) and a plurality of groups of limit units Element (5), a splicing strip (4) is arranged at one end of the connecting plate (3), and the other end of each connecting plate (3) is provided with an adapting groove (31) for the splicing strip (4) to be pressed into; a group of limiting units (5) is provided on a connecting plate (3) to position the splicing strip (4) in the side wall of the adapting groove (31); each group of limiting units (5) includes an adapter plate (51), the adapter plate (51) is rotatably arranged on the connecting plate (3) to press the splicing strip (4) in the side wall of the adapting groove (31); the adapter plate (51) is also provided with a placement plane (511), and the placement plane (511) is used to keep the adapter plate (51) away from the splicing strip (4).

2. The escalator step chain assembly line according to claim 1, characterized in that: Each group of the anti-pullout components (7) further comprises a plurality of docking sleeves (73), all of the docking sleeves (73) are arranged on the deviation-correcting block (71), and one of the support springs (72) is located in the inner cavity of one of the docking sleeves (73).

3. The escalator step chain assembly line according to claim 2, characterized in that: Each group of the locking mechanisms (22) further comprises at least one group of reset assemblies (8), one group of the reset assemblies (8) being arranged corresponding to one group of the anti-pullout assemblies (7); each group of the reset assemblies (8) comprises an extension rod (81), the extension rod (81) being arranged on the deviation-correcting block (71), and a movable channel (2212) for allowing the extension rod (81) to pass through and move is provided through the positioning sleeve (221).

4. The escalator step chain assembly line according to claim 3, characterized in that: The reinforcing mechanism (11) further comprises a plurality of fastening assemblies (6), wherein the fastening assemblies (6) comprise a contact block (61), two threading screws (62) and two fastening nuts (63); the two threading screws (62) are respectively arranged on opposite sides of the contact block (61); each connecting plate (3) is provided with a limiting groove (32) for the contact block (61) to be pressed into; one threading screw (62) is threadedly arranged on one connecting plate (3); and one fastening nut (63) is threadedly connected to one threading screw (62), so that the contact block (61) is positioned between the two connecting plates (3).

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