Sidewalk handrail belt pressing chain

Abstract

The utility model relates to a sidewalk handrail belt pressing chain, and relates to the technical field of handrail belt pressing chains, the sidewalk handrail belt pressing chain comprises a first connecting piece, a second connecting piece and an oil guide pipe, the first connecting piece and the second connecting piece are both used for being connected with a handrail truss of a moving sidewalk, and a plurality of chain links are sequentially arranged between the first connecting piece and the second connecting piece; the adjacent chain links are rotationally connected through pin shafts, rolling wheels are rotationally arranged on the pin shafts, oil filling grooves are formed in the pin shafts, oil seepage holes are formed in the peripheral walls of the pin shafts, the oil filling grooves are communicated with the oil seepage holes, a plurality of branch pipes are arranged on the oil guide pipe in a communicated mode, and the branch pipes are in one-to-one correspondence with the oil filling grooves and are communicated with the oil seepage holes. And the oil guide pipe (3) and the branch pipe are hoses. The sidewalk handrail belt pressing chain has the effects that the maintenance convenience of the sidewalk handrail belt pressing chain is improved, and lubricating oil can enter the space between the pin shaft and the rolling wheel more easily.

Description

Technical Field

[0001] The present application relates to the technical field of handrail belt pressure chains, and in particular to a sidewalk handrail belt pressure chain. Background Art

[0002] The handrail pressure chain is an important component of the moving walkway. It is mainly used to press the handrail against the friction wheel to ensure that the handrail moves synchronously with the steps, prevent the handrail from loosening or slipping, and enable the handrail to provide stable hand support for passengers.

[0003] In the related art, a sidewalk handrail pressure chain is designed, which includes two connecting parts. The connecting parts are used to connect the handrail truss of the moving sidewalk. Several chain links are arranged in sequence between the connecting parts. Adjacent chain links are connected by a pin shaft, and a roller is rotatably arranged on the pin shaft. When in use, the connecting part is fixedly installed on the handrail truss of the moving sidewalk, and the roller presses the handrail belt against the friction wheel. The two connecting parts tighten the chain links to increase the positive pressure, thereby increasing the friction force of the friction wheel on the handrail belt.

[0004] In the process of implementing this application, it was found that there are at least the following problems in this technology: when maintaining the chain, it is necessary to add lubricating oil to the rotating connection between each pin and roller separately. This process is cumbersome and the lubricating oil is not easy to enter between the pin and the roller. Utility Model Content

[0005] In order to improve the maintenance convenience of the sidewalk handrail pressure chain and make it easier for lubricating oil to enter between the pin shaft and the roller, the present application provides a sidewalk handrail pressure chain.

[0006] The present application provides a sidewalk handrail pressure chain adopting the following technical solution:

[0007] A sidewalk handrail pressure chain includes a first connecting member, a second connecting member, and an oil guide pipe. The first connecting member and the second connecting member are both used to connect the handrail truss of the moving sidewalk. A plurality of chain links are sequentially arranged between the first connecting member and the second connecting member. Adjacent chain links are rotatably connected by a pin shaft. A roller is rotatably arranged on the pin shaft. An oil filling groove is provided on the pin shaft. An oil seepage hole is provided on the peripheral wall of the pin shaft. The oil filling groove and the oil seepage hole are communicated with each other. A plurality of branch pipes are connected on the oil guide pipe. The branch pipes correspond to the oil filling grooves one by one and are communicated with each other. The oil guide pipe and the branch pipes are both hoses.

[0008] By adopting the above technical solution, when it is necessary to add lubricating oil to the rotating connection between the pin shaft and the roller, the lubricating oil can be directly injected into the oil guide pipe. The lubricating oil will flow into the oil filling groove of each pin shaft along the branch pipe, and flow out through the oil seepage holes on the peripheral wall of the pin shaft to lubricate the rotating connection between the pin shaft and the roller. This simplifies the process of adding lubricating oil, allows the lubricating oil to smoothly enter the rotating connection, effectively reduces the tediousness of maintenance, and improves maintenance efficiency.

[0009] Preferably, the oil filling groove is opened at the end of the pin shaft, and a connecting nozzle is fixedly provided at the end of the pin shaft. The interior of the connecting nozzle is communicated with the oil filling groove, and the branch pipe is sleeved on the connecting nozzle.

[0010] By adopting the above technical solution, the branch pipe is sleeved on the connecting nozzle, making the connection between the branch pipe and the oil filling tank more stable and tight, effectively preventing the leakage of lubricating oil during the injection process, and also facilitating the installation and disassembly of the branch pipe, providing convenience for the maintenance and replacement of the oil guide pipe.

[0011] Preferably, a first conical surface is provided on the outer side wall of the connecting nozzle away from the pin shaft, a locking ring is provided on the connecting nozzle, the locking ring is sleeved on the branch pipe, a second conical surface is provided inside the locking ring, the first conical surface and the second conical surface are adapted to each other and jointly clamp the branch pipe.

[0012] By adopting the above technical solution, the locking ring is adjusted on the connecting nozzle so that the first conical surface and the second conical surface are close to each other. The first conical surface and the second conical surface clamp the branch pipe at the same time, thereby enhancing the sealing and stability of the connection between the branch pipe and the connecting nozzle, preventing the branch pipe from accidentally falling off or leaking lubricating oil during operation, thereby ensuring that the lubricating oil can be accurately and stably injected into the rotating connection between the pin shaft and the roller, further improving the working reliability and stability of the sidewalk handrail pressure chain.

[0013] Preferably, the connecting nozzle and the locking ring are connected via threads.

[0014] By adopting the above technical solution, the threaded connection makes the connection between the connecting nozzle and the locking ring more firm and reliable, and the locking ring is locked on the connecting nozzle, which can better ensure the clamping effect of the branch pipe, further enhance the stability and sealing of the entire oil injection system, and make it easier to disassemble and assemble.

[0015] Preferably, the first connecting member includes a first mounting frame and a first pull rod, the first mounting frame is connected to the chain link located at the outermost end, the first pull rod is fixedly connected to the first mounting frame, an oil box is fixedly installed in the first mounting frame, the oil guide pipe is connected to the inside of the oil box, and oil-absorbing cotton is provided in the oil filling tank.

[0016] By adopting the above technical solution, the setting of the oil box facilitates the centralized storage and addition of lubricating oil, reduces the operation of frequent lubricating oil addition, and after the lubricating oil flows into the oil filling tank, it is first absorbed by the oil-absorbing cotton. After the oil-absorbing cotton is saturated, it seeps out from the oil seepage hole, thereby preventing excessive outflow of lubricating oil, limiting the outflow speed of lubricating oil, and at the same time avoiding waste and pollution of lubricating oil as much as possible, ensuring the continuity and stability of lubrication work, and further improving the reliability of the use of the sidewalk handrail pressure belt chain.

[0017] Preferably, an oil filling pipe communicating with the interior of the oil box is fixedly provided on the oil box, and a detachable oil plug is provided on the oil filling pipe, which blocks the oil inlet pipe.

[0018] By adopting the above technical solution, the provision of the oil filling pipe facilitates the addition of lubricating oil to the oil box, and the detachable oil plug can effectively seal the oil filling pipe when no lubricating oil is added, preventing dust and other impurities from entering the oil box and contaminating the lubricating oil, thereby ensuring the cleanliness of the lubricating oil and thus ensuring a good lubrication effect.

[0019] Preferably, an air pressure balance pipe communicating with the interior of the oil box is fixedly provided on the oil box, and a throttle valve is installed on the air pressure balance pipe.

[0020] By adopting the above technical solution, the setting of the air pressure balance pipe can balance the air pressure inside and outside the oil box, so that the lubricating oil can flow more smoothly from the oil box through the oil guide pipe to each pin shaft. The installation of the throttle valve can adjust the gas flow in the air pressure balance pipe according to actual needs, thereby better controlling the pressure balance in the oil box and controlling the oil output speed of the oil box.

[0021] Preferably, the second connecting member includes a second mounting frame and a second pull rod, the second mounting frame is connected to the chain link located at the outermost end, a sliding plate is slidably provided on the second mounting frame, the second pull rod passes through the second mounting frame and is slidably connected to the second mounting frame, the second pull rod is fixedly connected to the sliding plate, and a thrust spring is provided on the second pull rod, one end of the thrust spring is against the second mounting frame, and the other end of the thrust spring is against the sliding plate, and the thrust spring drives the sliding plate to slide toward the chain link.

[0022] By adopting the above technical solution, the thrust spring can provide a continuous thrust to the second pull rod, making the connection between the second connecting member and the handrail truss of the moving walkway tighter and more stable. When the handrail truss is subjected to vibration or impact, the thrust spring can play a buffering and shock-absorbing role to reduce damage to the chain. The thrust spring also tightens the chain links to increase the positive pressure of the roller on the friction wheel, thereby increasing the friction between the friction wheel and the handrail belt.

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

[0024] 1. The process of adding lubricating oil is simplified by setting the pin, roller, oil filling groove, oil seepage hole and branch pipe, so that the lubricating oil can smoothly enter the rotating joint, effectively reducing the complexity of maintenance and improving maintenance efficiency;

[0025] 2. The connection nozzle, locking ring, first tapered surface, and second tapered surface are provided to effectively prevent leakage of lubricating oil during the injection process, further improving the efficiency and stability of lubricating oil injection. At the same time, it is easy to install and remove the branch pipe, providing convenience for maintenance and replacement of parts.

[0026] 3. By arranging the first mounting frame, the first pull rod, the oil box, the oil absorbing cotton, the oil filling pipe, the oil plug, the air pressure balance pipe, and the throttle valve, the centralized storage and addition of the lubricating oil are facilitated, and the operation of frequently adding the lubricating oil is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a sidewalk handrail pressure belt chain provided in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A

[0029] Figure 3 yes Figure 1 Enlarged view of part B

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of a sidewalk handrail pressure belt chain provided in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. First connecting member; 11. First mounting bracket; 12. First pull rod; 13. Oil box; 14. Oil filling pipe; 141. Oil plug; 15. Air pressure balance pipe; 151. Throttle valve; 2. Second connecting member; 21. Second mounting bracket; 22. Second pull rod; 23. Sliding plate; 24. Thrust spring; 3. Oil guide pipe; 31. Branch pipe; 32. Oil-absorbing cotton; 4. Chain link; 5. Pin; 51. Oil filling groove; 52. Oil seepage hole; 53. Connecting nozzle; 531. First conical surface; 54. Locking ring; 541. Second conical surface; 6. Roller. 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 sidewalk handrail belt pressure chain. Figures 1 to 4It includes a first connector 1, a second connector 2, and an oil guide pipe 3. The first connector 1 and the second connector 2 are both used to connect the handrail truss of the moving walkway. A number of chain links 4 are sequentially arranged between the first connector 1 and the second connector 2. Adjacent chain links 4 are rotatably connected by a pin 5, on which a roller 6 is rotatably mounted. During use, the first connector 1 and the second connector 2 are respectively fixedly mounted on the handrail truss of the moving walkway. The roller 6 presses the handrail belt against the friction wheel. The two connectors tighten the chain links 4 to increase the positive pressure applied by the roller 6 on the friction wheel, thereby increasing the friction force of the friction wheel on the handrail belt.

[0034] Reference Figure 1 and Figure 4 An oil filling groove 51 is provided at the center of the end of the pin 5, and a connecting nozzle 53 is fixedly provided at the center of the end of the pin 5. The connecting nozzle 53 and the oil filling groove 51 are interconnected. An oil seepage hole 52 is provided on the peripheral wall of the pin 5, and the oil filling groove 51 and the oil seepage hole 52 are interconnected. A plurality of branch pipes 31 are connected to the oil guide pipe 3. The branch pipes 31 correspond to the oil filling grooves 51 one by one. The branch pipes 31 are sleeved on the connecting nozzle 53 and are interconnected with the oil filling grooves 51 through the connecting nozzle 53. Among them, the oil guide pipe 3 and the branch pipes 31 are both hoses. When lubricating oil needs to be added to the rotating connection between the pin 5 and the roller 6, the lubricating oil can be directly injected into the oil guide pipe 3. The lubricating oil flows from each branch pipe 31 into the oil filling groove 51 of each pin 5 and flows out through the oil seepage holes 52 on the peripheral wall of the pin 5 to lubricate the rotating connection between the pin 5 and the roller 6.

[0035] In order to facilitate the installation and removal of the branch pipe 31, refer to Figure 4 A first tapered surface 531 is formed on the outer wall of the connecting nozzle 53 at the end facing away from the pin 5. A locking ring 54 is provided on the connecting nozzle 53, and the connecting nozzle 53 and the locking ring 54 are threadedly engaged. The locking ring 54 is sleeved on the branch pipe 31, and the branch pipe 31 is sleeved on the connecting nozzle 53. A second tapered surface 541 is formed in the locking ring 54. The first tapered surface 531 and the second tapered surface 541 adapt to each other and jointly clamp the branch pipe 31. When the branch pipe 31 needs to be fixed, the locking ring 54 is turned, and the second tapered surface 541 approaches the first tapered surface 531 and jointly clamps the branch pipe 31. When the branch pipe 31 needs to be loosened, the locking ring 54 is turned in the opposite direction, and the second tapered surface 541 moves away from the first tapered surface 531 and loosens the branch pipe 31. This facilitates the installation and removal of the branch pipe 31 and provides convenience for the maintenance and replacement of the oil guide pipe 3.

[0036] In order to reduce the frequency of adding lubricating oil, refer to Figure 1 and Figure 2The first connecting member 1 includes a first mounting frame 11 and a first pull rod 12. The first mounting frame 11 is connected to one of the chain links 4 at the outermost end, and the first pull rod 12 is fixedly connected to the first mounting frame 11. The first pull rod 12 is used to securely connect to the handrail truss of the moving walkway. An oil box 13 is fixedly mounted within the first mounting frame 11, storing lubricating oil. The oil guide pipe 3 is connected to the interior of the oil box 13, and oil-absorbing cotton 32 is provided within the oil filling tank 51. The oil box 13 provides storage space for the lubricating oil in the oil guide pipe 3, allowing the lubricating oil to be continuously supplied to the oil filling tank 51. After the lubricating oil flows into the oil filling tank 51, it is first absorbed by the oil-absorbing cotton 32. Once the oil-absorbing cotton 32 is saturated, it seeps out of the oil seepage hole 52. During this process, the oil-absorbing cotton 32 limits the outflow rate of the lubricating oil, allowing the lubricating oil to be preferentially absorbed by the unsaturated oil-absorbing cotton 32, thereby improving the continuity and stability of the lubrication effect.

[0037] Reference Figure 1 and Figure 2 The oil box 13 is fixed with an oil filling pipe 14 and an air pressure equalization pipe 15 that are interconnected with the interior of the oil box 13. The oil filling pipe 14 is provided with a detachable oil plug 141, which blocks the oil inlet pipe. When refueling, the oil plug 141 is pulled out and lubricating oil is added to the oil box 13 through the oil filling pipe 14. When not refueling, the oil plug 141 is inserted into the oil filling pipe 14 to prevent dust and other impurities from entering the oil box 13. A throttle valve 151 is installed on the air pressure equalization pipe 15. The throttle valve 151 is used to adjust the gas flow in the air pressure equalization pipe 15, thereby controlling the speed at which the atmosphere enters the oil box 13 and thereby controlling the oil discharge speed of the oil box 13.

[0038] In order to further tighten the chain links 4, refer to Figure 1 and Figure 3 The second connecting member 2 includes a second mounting frame and a second pull rod 22. The second mounting frame is connected to another chain link 4 located at the outermost end. A sliding plate 23 is slidably provided on the second mounting frame. The second pull rod 22 passes through the second mounting frame and is slidably connected to the second mounting frame. The second pull rod 22 is fixedly connected to the sliding plate 23. The second pull rod 22 is used to be fixed to the handrail truss of the moving walkway. A thrust spring 24 is sleeved on the second pull rod 22, and one end of the thrust spring 24 abuts against the second mounting frame. The other end of the thrust spring 24 abuts against the sliding plate 23, and the thrust spring 24 drives the sliding plate 23 to slide toward the chain link 4.

[0039] The implementation principle of the sidewalk handrail pressure chain of the embodiment of the present application is as follows: when lubrication of the rotating connection between the pin shaft 5 and the roller 6 is required, the oil plug 141 is removed and lubricating oil is added to the oil box 13 through the oil filling pipe 14. The lubricating oil flows along the oil guide pipe 3 and the branch pipe 31 into the oil filling groove 51 of the pin shaft 5. The lubricating oil is first absorbed by the oil-absorbing cotton 32. After the oil-absorbing cotton 32 in all the oil filling grooves 51 is saturated with the oil, the lubricating oil seeps out from the oil seepage hole 52 to lubricate the rotating connection between the pin shaft 5 and the roller 6. This improves the maintenance convenience of the sidewalk handrail pressure chain and makes it easier for the lubricating oil to enter between the pin shaft 5 and the roller 6.

[0040] 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 sidewalk handrail belt pressure chain, characterized by: The invention comprises a first connecting member (1), a second connecting member (2), and an oil guide pipe (3). The first connecting member (1) and the second connecting member (2) are both used to connect the handrail truss of the moving walkway. A plurality of chain links (4) are sequentially arranged between the first connecting member (1) and the second connecting member (2). Adjacent chain links (4) are rotatably connected via a pin shaft (5). A roller (6) is rotatably arranged on the pin shaft (5). An oil filling groove (51) is provided on the pin shaft (5). An oil seepage hole (52) is provided on the peripheral wall of the pin shaft (5). The oil filling groove (51) and the oil seepage hole (52) are communicated with each other. A plurality of branch pipes (31) are communicated with the oil guide pipe (3). The branch pipes (31) correspond to the oil filling grooves (51) one by one and are communicated with each other. The oil guide pipe (3) and the branch pipes (31) are both hoses.

2. The sidewalk handrail belt pressure chain according to claim 1, characterized in that: The oil filling groove (51) is opened at the end of the pin shaft (5), and a connecting nozzle (53) is fixedly provided at the end of the pin shaft (5). The interior of the connecting nozzle (53) is communicated with the oil filling groove (51), and the branch pipe (31) is sleeved on the connecting nozzle (53).

3. The sidewalk handrail belt pressure chain according to claim 2, characterized in that: A first conical surface (531) is provided on the outer side wall of the connecting nozzle (53) at one end away from the pin shaft (5); a locking ring (54) is provided on the connecting nozzle (53); the locking ring (54) is sleeved on the branch pipe (31); a second conical surface (541) is provided in the locking ring (54); the first conical surface (531) and the second conical surface (541) are adapted to each other and jointly clamp the branch pipe (31).

4. The sidewalk handrail belt pressing chain according to claim 3, characterized in that: The connecting nozzle (53) and the locking ring (54) are connected via threads.

5. The sidewalk handrail belt pressing chain according to claim 1, characterized in that: The first connecting member (1) includes a first mounting frame (11) and a first pull rod (12). The first mounting frame (11) is connected to the chain link (4) located at the outermost end. The first pull rod (12) is fixedly connected to the first mounting frame (11). An oil box (13) is fixedly installed in the first mounting frame (11). The oil guide pipe (3) is connected to the inside of the oil box (13). An oil-absorbing cotton (32) is provided in the oil filling groove (51).

6. The sidewalk handrail belt pressing chain according to claim 5, characterized in that: An oil filling pipe (14) communicating with the interior of the oil box (13) is fixedly provided on the oil box (13). A detachable oil plug (141) is provided on the oil filling pipe (14), and the oil plug (141) blocks the oil inlet pipe.

7. The sidewalk handrail belt pressing chain according to claim 5, characterized in that: The oil box (13) is fixedly provided with an air pressure balance pipe (15) which is in communication with the interior of the oil box (13), and a throttle valve (151) is installed on the air pressure balance pipe (15).

8. The sidewalk handrail belt pressing chain according to claim 1, characterized in that: The second connecting member (2) includes a second mounting frame (21) and a second pull rod (22). The second mounting frame (21) is connected to the chain link (4) located at the outermost end. A sliding plate (23) is slidingly provided on the second mounting frame (21). The second pull rod (22) passes through the second mounting frame (21) and is slidingly connected to the second mounting frame (21). The second pull rod (22) is fixedly connected to the sliding plate (23). A thrust spring (24) is sleeved on the second pull rod (22). One end of the thrust spring (24) is in contact with the second mounting frame (21), and the other end of the thrust spring (24) is in contact with the sliding plate (23). The thrust spring (24) drives the sliding plate (23) to slide toward the chain link (4).

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