Heavy-load escalator pushing chain

Abstract

The utility model relates to the technical field of escalator chains, in particular to a heavy-load escalator pushing chain which comprises a plurality of connecting rods, a plurality of inner chain plates and a plurality of outer chain plates, the connecting rods are connected between the two outer chain plates, the inner chain plates and the outer chain plates are arranged at intervals, a connecting sleeve is arranged between the inner chain plates, and the outer chain plates are connected with the connecting sleeve. The connecting sleeve is connected with the two inner chain plates, a connecting pin is arranged between the outer chain plates, the connecting pin is connected with the two outer chain plates, the connecting pin penetrates through the connecting sleeve, a first roller is rotationally arranged on the connecting sleeve, a first connecting chain plate is arranged between the inner chain plates, and a second roller is rotationally arranged on the first connecting chain plate. The first connecting chain plate is connected with the two inner chain plates at the two ends of the connecting sleeve, a second connecting chain plate is arranged between the outer chain plates, and the second connecting chain plate is connected with the two outer chain plates at the two ends of the connecting pin. The device has the effect of reducing the safety risk caused by chain breakage.

Description

Technical Field

[0001] The utility model relates to the technical field of escalator chains, in particular to a heavy-load escalator pushing chain. Background Art

[0002] The push chain of an escalator is the traction component of the steps in the escalator, which is used to drive the steps to move and thus carry people and goods up and down. A heavy-load escalator is an escalator that can withstand a larger load. Generally speaking, escalators running in public transportation places with large passenger flow such as subways and airports are all heavy-load escalators.

[0003] The existing escalator push chains are mostly two common roller chains. The roller chains include inner link plates and outer link plates. The inner link plates and outer link plates are connected by connecting pins. Rollers are rotatably provided on the connecting pins. At the same time, a connecting rod is provided between the chains. The connecting rod is used to connect to the steps and to bear the weight of the load on the steps. The steps are provided with auxiliary wheels sliding in the escalator track. The escalator is lifted and lowered by the auxiliary wheels and the push chain.

[0004] In order to bear heavier loads, existing escalator push chains often adopt a more stable structure at the connection between the chain and the connecting rod. During use, the connection between the chain and the connecting rod will continue to wear and need to be replaced in time. However, in actual use, the chain itself also bears great pressure, and there is a possibility of breakage during long-term use, which poses certain safety risks. Utility Model Content

[0005] In order to reduce safety risks, the present application provides a heavy-load escalator push chain.

[0006] The heavy-duty escalator push chain provided in this application adopts the following technical solution:

[0007] A heavy-load escalator push chain includes several connecting rods, several inner chain plates and several outer chain plates, the connecting rods are connected and arranged between two outer chain plates, the inner chain plates and the outer chain plates are arranged alternately, a connecting sleeve is provided between the inner chain plates, the connecting sleeve connects the two inner chain plates, a connecting pin is provided between the outer chain plates, the connecting pin connects the two outer chain plates, the connecting pin passes through the connecting sleeve, a first roller is rotatably provided on the connecting sleeve, a first connecting chain plate is provided between the inner chain plates, the first connecting chain plate connects the two inner chain plates at both ends of the connecting sleeve, a second connecting chain plate is provided between the outer chain plates, and the second connecting chain plate connects the two outer chain plates at both ends of the connecting pin.

[0008] By adopting the above technical solution, the strength of the inner chain plate is improved by the first connecting chain plate, thereby reducing the possibility of the inner chain plate being broken due to excessive pressure during use. The strength of the outer chain plate is improved by setting the second connecting chain plate, thereby reducing the possibility of the outer chain plate being broken due to excessive pressure during use, thereby reducing the possibility of the chain breaking during use and reducing safety risks. At the same time, the first connecting chain plate and the second connecting chain plate are both at a certain distance from the roller, leaving space for the teeth of the rotating gear to be inserted into the chain, thereby driving the chain to rotate.

[0009] Preferably, the second connecting chain plate and the first connecting chain plate are both rotatably provided with second rollers.

[0010] By adopting the above technical solution, a track for limiting the push chain is provided inside the escalator, and the first roller and the second roller are respectively fitted to the bottom wall and the top wall of the track. By providing the second roller, the friction during the sliding process of the push chain is reduced, which facilitates the sliding of the push chain. At the same time, by providing the second roller, friction is reduced, the service life of the chain is increased, and the durability is improved.

[0011] Preferably, the second connecting chain plate and the first connecting chain plate are both provided with roller grooves, and the second roller is rotatably arranged in the roller grooves.

[0012] By adopting the above technical solution, the second roller is rotatably arranged in the roller groove, which reduces the possibility of foreign objects colliding with the second roller and causing damage to the second roller, thereby improving durability.

[0013] Preferably, the connecting pin passes through the outer link plate, the outer link plate is rotatably provided with a fixed block, the fixed block is provided with a fixed hole, the connecting rod is inserted into the fixed hole, the fixed block is provided with a pin hole communicating with the fixed hole, the connecting pin passes through the pin hole and is inserted into the fixing hole, the connecting rod is provided with a connecting hole, the connecting pin is inserted into the connecting hole, the fixed block is provided with an assembly component, and the assembly component is used to assemble the connecting pin and the connecting rod.

[0014] By adopting the above technical solution, the connecting rod is inserted into the fixing hole of the fixing block, and the connecting pin is inserted into the connecting hole of the connecting rod, so as to cooperate with the assembly component to improve the stability of the connection between the connecting rod and the chain. When the connecting rod is subjected to heavy load pressure, part of the pressure can be shared by the abutment between the connecting rod and the inner wall of the fixing hole, and the abutment between the connecting pin and the inner wall of the connecting hole. By increasing the contact area, the pressure is reduced, thereby improving the stability of the connection between the connecting rod and the chain, thereby reducing safety risks.

[0015] Preferably, the assembly component includes an assembly bolt and an assembly nut, the fixing block is provided with a first assembly hole communicating with the fixing hole, the connecting rod is provided with a second assembly hole communicating with the connecting hole, the connecting pin is provided with a third assembly hole, the assembly bolt passes through the first assembly hole, the second assembly hole and the third assembly hole, the assembly nut is sleeved on the assembly bolt and threadedly connected to the assembly bolt, and the assembly nut is against the fixing block.

[0016] By adopting the above technical solution, the fixing block, the connecting rod and the connecting pin are assembled together by passing the assembly bolts through the first assembly hole, the second assembly hole and the third assembly hole, and tightening the assembly bolts with the assembly nuts. On the one hand, the convenience of assembly is improved, and on the other hand, the stability of assembly is improved, the possibility of the connecting rod detaching from the fixing block is reduced, and the safety risk is reduced.

[0017] Preferably, the fixing block is provided with a positioning block, the positioning block is provided with an elastic ring, the elastic ring is sleeved on the positioning block and the assembly nut, the positioning block is provided with a first positioning groove, the assembly nut is provided with a second positioning groove, the elastic ring is provided with a positioning card block, and the positioning card block is inserted into the first positioning groove and the second positioning groove.

[0018] By adopting the above technical solution, the elastic ring is sleeved on the positioning block and the shaft nut, and the positioning block is inserted into the first positioning groove and the second positioning groove, so as to position the assembly nut, reduce the possibility of the assembly nut shaking under pressure and causing loosening and falling off, improve the stability of the assembly, and reduce safety risks.

[0019] Preferably, first reinforcement blocks are provided on both sides of the first connecting link plate, and the first reinforcement blocks are connected to the side walls of the inner link plate.

[0020] By adopting the above technical solution, the strength of the inner link plate is further improved through the first reinforcement block, the possibility of the inner link plate breaking during use is reduced, and the safety risk is reduced.

[0021] Preferably, second reinforcement blocks are provided on both sides of the second connecting link plate, and the second reinforcement blocks are connected to the side walls of the outer link plate.

[0022] By adopting the above technical solution, the strength of the outer link plate is further improved through the second reinforcement block, the possibility of the outer link plate breaking during use is reduced, and the safety risk is reduced.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging inner link plates, outer link plates, connecting sleeves, connecting pins, first rollers, first connecting link plates, and second connecting link plates, the outer link plates are arranged outside the inner link plates, and the connecting pins on the outer link plates are inserted into the connecting sleeves on the inner link plates. The connecting sleeves are provided with first rollers for reducing friction. The first connecting link plates enhance the strength of the inner link plates, while the second connecting link plates enhance the strength of the outer link plates. This reduces the possibility of the inner or outer link plates breaking under long-term heavy loads, thereby reducing safety risks.

[0025] 2. By providing a fixing block, a fixing hole, a connecting rod, a pin hole, a connecting hole, and an assembly component, the connecting rod is inserted into the fixing hole of the fixing block, and the connecting pin passes through the pin hole and is inserted into the connecting hole of the connecting rod. The connecting rod and the connecting pin are assembled with the assembly component, thereby increasing the contact area to improve the stability of the fixation between the connecting rod and the chain. At the same time, by positioning and fixing the side wall of the chain slidingly arranged in the track to press against the connecting rod, the possibility of the connecting rod withdrawing from the fixing hole is further reduced, thereby reducing safety risks.

[0026] 3. By setting an assembly bolt, an assembly nut, a first assembly hole, a second assembly hole and a third assembly hole, the assembly bolt passes through the first assembly hole of the fixed block, the second assembly hole of the connecting rod, and the third assembly hole of the connecting pin, and is threadedly connected with the assembly nut, thereby fixing the assembled connecting rod and the connecting pin. By increasing the contact area, the pressure on the assembly bolt during use is reduced, the durability and stability are improved, and the possibility of the assembly bolt breaking during use causing the connecting rod to detach from the fixed block is reduced, thereby improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall schematic diagram of a heavy-load escalator push chain provided in an embodiment of the present application.

[0028] Figure 2 This is a schematic diagram of the partial chain structure after disassembly.

[0029] Figure 3 It is a cross-sectional view used to reflect the connection relationship between the connecting pin and the connecting rod.

[0030] Figure 4 yes Figure 3 Enlarged view of area A in the middle

[0031] Explanation of the accompanying drawings: 1. Inner link plate; 11. Connecting sleeve; 111. First roller; 12. Sleeve hole; 13. First connecting chain plate; 131. First reinforcement block; 2. Outer link plate; 21. Connecting pin; 211. Locking pin; 212. Third assembly hole; 22. Second connecting chain plate; 221. Roller groove; 222. Second roller; 223. Second reinforcement block; 3. Chain ring; 4. Connecting rod; 41. Connecting hole; 42. Second assembly hole; 5. Fixing block; 51. Fixing hole; 52. Pin hole; 53. First assembly hole; 54. Positioning block; 541. First positioning groove; 55. Elastic ring; 551. Positioning block; 6. Assembly component; 61. Assembly bolt; 62. Assembly nut; 621. Second positioning groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a heavy-load escalator push chain. Figures 1 to 3The chain chain comprises a plurality of inner link plates 1, a plurality of outer link plates 2, and a plurality of connecting rods 4. Two connecting sleeves 11 are fixedly disposed between the two inner link plates 1. Each inner link plate 1 has a sleeve hole 12 that communicates with the connecting sleeve 11. Two connecting pins 21 are rotatably disposed between the two outer link plates 2. The connecting pins 21 fit through the sleeve holes 12 and the connecting sleeve 11. The inner link plates 1 and the outer link plates 2 are arranged alternately and connected to each other in the first position to form chain loops 3. The connecting rod 4 is disposed between the two chain loops 3 and connected to the side walls of the outer link plates 2. A first roller 111 is rotatably mounted on the connecting sleeve 11. A first connecting link plate 13 is fixedly disposed between the two side-by-side inner link plates 1. The first connecting link plate 13 is disposed between the two connecting sleeves 11. First reinforcement blocks 131 are fixedly disposed on both sides of the first connecting link plate 13 and are fixedly connected to the outer side walls of the inner link plates 1. The first reinforcement blocks 131 are located between the two outer link plates 2 arranged in the same row. A second connecting link plate 22 is fixed between the two side-by-side outer link plates 2. The second connecting link plate 22 is positioned between two connecting pins 21. Second reinforcement blocks 223, fixedly connected to the outer walls of the outer link plates 2, are fixed on either side of the second connecting link plate 22. The second reinforcement blocks 223 are positioned between the two inner link plates 1 arranged in the same row. A locking pin 211 is inserted into the end of some connecting pins 21 facing away from the connecting rod 4 for easy removal. Roller grooves 221 are provided through each of the first and second connecting link plates 13, 22. Second rollers 222 are rotatably mounted within these grooves. In actual use, the height of the inner and outer link plates 1, 2 can be determined based on the length of the meshing gear segments to ensure that the first and second connecting link plates 13, 22 do not collide with the gear segments. The first and second connecting link plates 13, 22 increase the strength of the inner and outer link plates 1, 2, reducing the possibility of chain breakage during use and mitigating safety risks.

[0034] In order to improve the stability of the connection between the connecting rod 4 and the chain, refer to Figures 2 to 4 A fixing block 5 is rotatably mounted on the outer side wall of the outer link plate 2 near the connecting rod 4. The side wall of the fixing block 5 facing away from the outer link plate 2 is provided with a fixing hole 51 for the connecting rod 4 to fit into. The side wall of the fixing block 5 abutting the outer link plate 2 is provided with a latch hole 52 communicating with the fixing hole 51. The connecting pin 21 fits through the latch hole 52. The side wall of the connecting rod 4 near the outer link plate 2 is provided with a connecting hole 41 for the connecting pin 21 to fit into. The fixing block 5 is provided with an assembly component 6 for assembling the connecting rod 4 and the connecting pin 21. By providing a plug-in structure, the contact area is increased, thereby sharing the pressure caused by the load and improving the stability of the connection between the connecting rod 4 and the chain.

[0035] To improve the stability of the assembly, refer to Figure 3 and Figure 4The assembly component 6 includes an assembly bolt 61 and an assembly nut 62. A first assembly hole 53 communicating with the fixing hole 51 is provided through the top wall of the fixing block 5. A second assembly hole 42 communicating with the connecting hole 41 is provided through the top wall of the connecting rod 4. A third assembly hole 212 is provided through the connecting pin 21. The assembly bolt 61 fits through the first assembly hole 53, the second assembly hole 42, and the third assembly hole 212 in sequence. The assembly nut 62 fits onto the assembly bolt 61 and is threadedly connected to the assembly bolt 61. The assembly nut 62 presses against the bottom wall of the fixing block 5. A positioning block 54 is fixed to the bottom wall of the fixing block 5. The fixing block 5 is provided with an elastic collar 55, which fits onto the assembly nut 62 and the positioning block 54. The sidewall of the positioning block 54 is provided with a first positioning groove 541, and the sidewall of the assembly nut 62 is provided with a circle of second positioning grooves 621. A positioning block 551 is fixedly mounted on the inner wall of the elastic collar 55, and the positioning block 551 is adapted to be inserted into the first positioning groove 541 and the second positioning groove 621. The assembly bolt 61 penetrates the fixing block 5, the connecting rod 4, and the connecting pin 21, thereby increasing the contact area. At the same time, the elastic collar 55 and the positioning block 551 enhance the stability of the fixing nut's positioning, thereby improving the stability of the assembly between the connecting rod 4 and the connecting pin 21.

[0036] The implementation principle of a heavy-load escalator push chain in an embodiment of the present application is: by setting a first reinforcement block 131 and a first connecting chain plate 13, two inner chain plates 1 arranged side by side are connected together and the strength is increased; by setting a second reinforcement block 223 and a second connecting chain plate 22, two outer walls arranged side by side are connected together and the strength is increased, thereby improving the overall strength of the chain, reducing the possibility of damage caused by excessive load pressure on the chain during use, improving durability and reducing safety risks.

[0037] 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. A heavy-load escalator push chain, characterized by: The invention comprises a plurality of connecting rods (4), a plurality of inner chain plates (1) and a plurality of outer chain plates (2), wherein the connecting rods (4) are connected and arranged between two outer chain plates (2), the inner chain plates (1) and the outer chain plates (2) are arranged alternately, a connecting sleeve (11) is arranged between the inner chain plates (1), the connecting sleeve (11) connects the two inner chain plates (1), a connecting pin (21) is rotatably arranged between the outer chain plates (2), the connecting pin (21) connects the two outer chain plates (2), the connecting pin (21) passes through the connecting sleeve (11), a first roller (111) is rotatably arranged on the connecting sleeve (11), a first connecting chain plate (13) is arranged between the inner chain plates (1), the first connecting chain plate (13) connects the two inner chain plates (1) at both ends of the connecting sleeve (11), and the outer chain plates (2 ) is provided with a second connecting chain plate (22), the second connecting chain plate (22) connects the two outer chain plates (2) at both ends of the connecting pin (21), the connecting pin (21) passes through the outer chain plate (2), the outer chain plate (2) is rotatably provided with a fixing block (5), the fixing block (5) is provided with a fixing hole (51), the connecting rod (4) is inserted into the fixing hole (51), the fixing block (5) is provided with a pin hole (52) communicating with the fixing hole (51), the connecting pin (21) passes through the pin hole (52) and is inserted into the fixing hole (51), the connecting rod (4) is provided with a connecting hole (41), the connecting pin (21) is inserted into the connecting hole (41), the fixing block (5) is provided with an assembly component (6), the assembly component (6) is used to assemble the connecting pin (21) and the connecting rod (4).

2. A heavy-load escalator push chain according to claim 1, characterized in that: The second connecting chain plate (22) and the first connecting chain plate (13) are both rotatably provided with second rollers (222).

3. A heavy-load escalator push chain according to claim 2, characterized in that: The second connecting chain plate (22) and the first connecting chain plate (13) are both provided with a roller groove (221), and the second roller (222) is rotatably arranged in the roller groove (221).

4. The heavy-load escalator push chain according to claim 1, characterized in that: The assembly component (6) comprises an assembly bolt (61) and an assembly nut (62); the fixing block (5) is provided with a first assembly hole (53) communicating with the fixing hole (51); the connecting rod (4) is provided with a second assembly hole (42) communicating with the connecting hole (41); the connecting pin (21) is provided with a third assembly hole (212); the assembly bolt (61) passes through the first assembly hole (53), the second assembly hole (42) and the third assembly hole (212); the assembly nut (62) is sleeved on the assembly bolt (61) and is threadedly connected to the assembly bolt (61); and the assembly nut (62) abuts against the fixing block (5).

5. The heavy-load escalator push chain according to claim 1, characterized in that: The fixing block (5) is provided with a positioning block (54), the positioning block (54) is provided with an elastic collar (55), the elastic collar (55) is sleeved on the positioning block (54) and the assembly nut (62), the positioning block (54) is provided with a first positioning groove (541), the assembly nut (62) is provided with a second positioning groove (621), the elastic collar (55) is provided with a positioning clamping block (551), and the positioning clamping block (551) is inserted into the first positioning groove (541) and the second positioning groove (621).

6. The heavy-load escalator push chain according to claim 1, characterized in that: First reinforcement blocks (131) are provided on both sides of the first connecting chain plate (13), and the first reinforcement blocks (131) are connected to the side walls of the inner chain plate (1).

7. The heavy-load escalator push chain according to claim 1, characterized in that: Second reinforcement blocks (223) are provided on both sides of the second connecting chain plate (22), and the second reinforcement blocks (223) are connected to the side walls of the outer chain plate (2).

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