A step chain tension detection device based on an ERP system

Abstract

The application relates to a step chain tension detection device based on an ERP system and relates to the technical field of step chains. The device comprises a detection platform, the detection platform is horizontally placed, a first tension detection head and a second tension detection head connected with the end of the step chain are arranged on the detection platform, the first tension detection head and the second tension detection head are arranged in linear correspondence, the first tension detection head is slidingly connected with the detection platform, a hydraulic oil cylinder is arranged at the end of the first tension detection head away from the second tension detection head, the hydraulic oil cylinder is used for driving the first tension detection head to move, and the second tension detection head is fixedly connected with the detection platform. The application has the effect of reducing the possibility that the existence of defects between the chains leads to the low quality of the finished product of the step chain of the escalator.

Description

Technical Field

[0001] This application relates to the field of ladder chain technology, and in particular to a ladder chain tension detection device based on an ERP system. Background Technology

[0002] An escalator is a moving staircase that carries people between floors of a building or structure. It consists of a chain of motor-driven steps, with each individually linked step circulating on a pair of tracks to keep them level. Escalators are capable of moving large numbers of people and are typically placed in the same physical space as a staircase.

[0003] An escalator includes a main drive mechanism, a drive spindle, and escalator step chains. The main drive mechanism mainly includes a speed regulating wheel, a main unit, a main drive chain, a double shoe brake, and a gearbox. The main drive mechanism drives the drive spindle to rotate, thereby causing the drive spindle to move the escalator step chains to achieve the lifting and lowering of the escalator.

[0004] In escalators, the escalator step chain is generally composed of chain link units. However, if there are defects in the step chain itself during the production process, the tensile strength between the steps may be low. When this part of the step chain is actually used, it will cause damage to the escalator step chain and affect the normal operation of the escalator. Therefore, this needs to be improved. Summary of the Invention

[0005] In order to improve the problem that defects are easily generated in the production process of ladder chains in related technologies, resulting in low tensile strength of the ladder chains and thus affecting the normal operation of escalators using defective ladder chains, this application provides a ladder chain tensile strength detection device based on an ERP system.

[0006] The ladder chain tension detection device based on an ERP system provided in this application adopts the following technical solution:

[0007] A ladder chain tension testing device based on an ERP system includes a testing platform placed horizontally. A first tension testing head and a second tension testing head, both connected to the ends of the ladder chain, are mounted on the testing platform. The first and second tension testing heads are aligned in a straight line. The first tension testing head is slidably connected to the testing platform. A hydraulic cylinder is mounted at the end of the first tension testing head furthest from the second tension testing head, driving the first tension testing head to move. The second tension testing head is fixedly connected to the testing platform.

[0008] By adopting the above technical solution, when the ladder chain tension testing device of this application is used, the operator can first place the ladder chain on the testing platform, then tighten both ends of the ladder chain by the first tension testing head and the second tension testing head respectively, and then drive the second tension testing head to move away from the first tension testing head by the hydraulic cylinder, thereby moving the chain composed of the chain links. The tension is measured by the tension sensor, and the measured tension value and the corresponding stretching distance are entered into the ERP system, thereby determining the quality of the chain and reducing the possibility that defects in the chain will lead to low quality of the finished escalator ladder chain.

[0009] Optionally, the detection platform is provided with an adjustment groove, which is located between the first tension detection head and the second tension detection head. An adjustment block is slidably connected in the adjustment groove. A receiving groove is provided on the top wall of the adjustment block. A lifting cylinder is provided on the bottom wall of the receiving groove. A lifting rod is provided at the output end of the lifting cylinder. A locking detection device for locking the ladder chain is provided at the top of the lifting rod.

[0010] By adopting the above technical solution, when conducting tensile tests on ladder chains, the middle position of the ladder chain can be lifted by a lifting rod, and the middle position of the ladder chain can be fixed by a locking detection device. Then, the second tensile testing head is moved away from the first tensile testing head by a hydraulic cylinder. This allows the ladder chain to be tested at different angles, making it closer to the application scenarios of ladder chains in daily life and improving the comprehensiveness of ladder chain tensile testing.

[0011] Optionally, a sliding block is rotatably connected to the top of the lifting rod, and a sliding groove is formed on the top wall of the sliding block. The locking detection device is disposed in the sliding groove and is slidably connected to the sliding groove. A fixing mechanism for fixing the locking detection device is provided in the sliding groove. A steering cylinder is rotatably connected to the side wall of the lifting rod, and a steering block is rotatably connected to the output end of the steering cylinder. A steering groove is formed on the bottom wall of the sliding block, and the steering block is inserted into the steering groove and is slidably connected to the steering groove.

[0012] By adopting the above technical solution, when the ladder chain is lifted by the structure of the lifting cylinder and lifting rod for tensile testing, the extension and retraction of the output end of the steering cylinder causes the steering block to drive the sliding block to change its angle, thereby changing the angle of the locking detection device in the sliding groove. This, in turn, causes the locking detection device to drive the ladder chain to change its angle, and then the tensile force of the ladder chain is measured, further improving the comprehensiveness of the tensile testing of the ladder chain.

[0013] Optionally, the locking detection device includes a locking base plate and locking side plates. The locking base plate is disposed within the sliding groove. A pair of locking side plates are provided, extending out of the sliding groove. The locking side plates are disposed on the side wall of the locking base plate away from the lifting rod. A pair of locking side plates are provided, and one of the locking side plates has a locking hole. The locking hole is a threaded hole, and a locking rod is inserted into the locking hole. An adapter groove is provided on the end wall of the locking rod inserted between the pair of locking side plates. The adapter groove is adapted to the connecting shaft of the ladder chain.

[0014] By adopting the above technical solution, when locking the ladder chain using the locking detection device, the ladder chain can be placed between a pair of locking side plates, and then the locking rod can be rotated so that the locking rod abuts against the side wall of the ladder chain, thereby fixing the ladder chain. The ladder chain consists of several links, which are fixedly connected by a connecting shaft. An adapter groove adapted to the connecting shaft is opened on the end wall of the locking rod. Even if the locking rod slides during clamping, the ladder chain can be further fixed by the connecting shaft abutting against the side wall of the adapter groove.

[0015] Optionally, the fixing mechanism includes a fixing crossbar, a first fixing magnet, and a second fixing magnet. A plurality of first fixing holes are provided on the side wall of the sliding groove, and a second fixing hole is provided on the locking detection device. The fixing crossbar is inserted into the first fixing hole and the second fixing hole. The first fixing magnet is disposed on the end wall of the fixing crossbar, and the second fixing magnet is disposed on the bottom wall of the second fixing hole. The first fixing magnet and the second fixing magnet are magnetically attracted to each other.

[0016] By adopting the above technical solution, when fixing the locking detection mechanism in the sliding groove through the fixing mechanism, a suitable first fixing hole can be selected according to the tensile test results, and the locking detection mechanism can be slid to the first fixing hole. Then, by inserting the fixing rod into the first fixing hole and the second fixing hole, the first fixing magnet and the second fixing magnet are attracted to each other, thereby completing the fixing of the locking detection mechanism and improving the stability of the locking detection mechanism when testing the tensile force of the ladder chain at multiple angles.

[0017] Optionally, a displacement screw is provided in the adjustment groove, the displacement screw is connected to the inner side wall of the adjustment groove, the displacement screw is arranged along the length direction of the adjustment groove, the displacement screw passes through the side wall of the adjustment block, and a displacement sleeve is sleeved on the displacement screw, the displacement sleeve is rotatably connected to the side wall of the adjustment block.

[0018] By adopting the above technical solution, the operator can rotate the displacement sleeve to move it on the displacement screw, thereby causing the displacement sleeve to drive the adjusting block to slide in the adjusting groove. Through the screw rotation adjustment, the operator can make fine adjustments when adjusting the adjusting block, thus improving the accuracy of the ladder chain tension test.

[0019] Optionally, a locking block is slidably connected to the inner sidewall of the adjusting groove, and a locking rod is hinged to the sidewall of the locking block near the shifting sleeve. A plurality of locking grooves are formed on the outer sidewall of the shifting sleeve along the circumference of the shifting sleeve. The locking grooves are arranged along the length direction of the shifting sleeve, and the locking rod is inserted into the locking groove.

[0020] By adopting the above technical solution, when the operator adjusts the position of the adjusting block by rotating the shifting sleeve, when the shifting block is adjusted to the correct position, the locking block can be slid to the position opposite to the shifting block. Then, the locking rod is rotated so that the locking rod is inserted into the locking groove, thereby making it difficult for the shifting sleeve to rotate, and further increasing the stability of the shifting block when sliding in the adjusting groove.

[0021] Optionally, a locking groove is provided on the side wall of the adjusting groove, and a sliding locking rod is provided in the locking groove. The sliding locking rod is provided on the inner side wall of the locking groove and is arranged along the length direction of the locking groove. The locking block is sleeved on the sliding locking rod, and the locking block is slidably connected to the sliding locking rod.

[0022] By adopting the above technical solution, and by using the structure of locking groove and sliding locking rod, the sliding of the locking block is limited, so that the locking block can only slide in the locking groove along the length direction of the locking groove, which further increases the stability of the locking block and locking rod when sliding, thereby increasing the stability of the adjusting block, and thus improving the overall stability of the system when performing tensile tests on the ladder chain.

[0023] Optionally, a buffer adhesive layer is provided at one end of the locking rod near the locking groove. The buffer adhesive layer abuts against the inner sidewall of the locking groove. The locking groove is a square groove, and the locking rod and the buffer adhesive layer are adapted to be disposed in the locking groove.

[0024] By adopting the above technical solution, when the locking rod and the buffer rubber layer are adapted to be inserted into the locking groove, the locking rod can fix the displacement sleeve more stably. The structure of the buffer rubber layer for rotation allows the buffer rubber layer to deform when the locking rod is rotated and inserted into the locking groove, thus improving the convenience of rotating and inserting the locking rod into the locking groove.

[0025] In summary, this application includes at least one of the following beneficial effects:

[0026] 1. When using the ladder chain tension testing device in this application, the operator can first place the ladder chain on the testing platform, then tighten both ends of the ladder chain by the first tension testing head and the second tension testing head respectively, and then drive the second tension testing head to move away from the first tension testing head by the hydraulic cylinder, thereby moving the chain composed of the chain links. The tension is measured by the tension sensor, and the measured tension value and the corresponding stretching distance are entered into the ERP system, thereby determining the quality of the chain and reducing the possibility that defects in the chain will lead to low quality of the finished escalator ladder chain.

[0027] 2. When conducting tensile tests on ladder chains, the middle position of the ladder chain can be lifted by a lifting rod, and the middle position of the ladder chain can be fixed by a locking detection device. Then, the second tensile testing head is moved away from the first tensile testing head by a hydraulic cylinder. This allows the ladder chain to be tested at different angles, making it closer to the application scenarios of ladder chains in daily life and improving the comprehensiveness of ladder chain tensile testing.

[0028] 3. The operator can rotate the shift sleeve to move it on the shift screw, thereby causing the shift sleeve to drive the adjusting block to slide in the adjusting groove. By adjusting the screw through the screw rotation, the operator can make fine adjustments to the adjusting block, thus improving the accuracy of the ladder chain tension test. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0030] Figure 2 This is a schematic diagram illustrating the connection relationship between the displacement screw and the displacement sleeve in an embodiment of this application;

[0031] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0032] Figure 4 for Figure 2 Enlarged schematic diagram of part B in the middle;

[0033] Figure 5 This is a schematic diagram illustrating the connection relationship between the adjusting groove and the adjusting block in an embodiment of this application;

[0034] Figure 6 for Figure 5 An enlarged schematic diagram of section C.

[0035] In the diagram: 1. Testing platform; 11. First tensile testing head; 12. Second tensile testing head; 13. Hydraulic cylinder; 2. Adjustment groove; 21. Adjustment block; 22. Receiving groove; 23. Lifting cylinder; 24. Lifting rod; 25. Sliding block; 26. Sliding groove; 27. Steering cylinder; 28. Steering block; 29. ​​Steering groove; 3. Locking base plate; 31. Locking side plate; 32. Locking hole; 33. Locking rod; 34. Adaptor groove; 4. Fixed crossbar; 41. First fixing hole; 42. Second fixing hole; 431. First fixing magnet; 432. Second fixing magnet; 5. Displacement screw; 51. Displacement sleeve; 52. Locking block; 53. Locking rod; 54. Locking groove; 6. Locking groove; 61. Sliding locking rod; 62. Buffer rubber layer. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0037] This application discloses a ladder chain tension detection device based on an ERP system. (Refer to...) Figure 1 A ladder chain tension testing device based on an ERP system includes a testing platform 1, which is vertically arranged. A first tension testing head 11 and a second tension testing head 12 are installed on the top wall of the testing platform 1. Both the first tension testing head 11 and the second tension testing head 12 have a U-shaped structure. The first tension testing head 11 includes a first tension plate. A first tension side plate is integrally formed on the side wall of the first tension plate near the second tension testing head. A first fixing rod is threaded through the side wall of the first tension side plate. The first fixing rod abuts against the side wall of the ladder chain, thereby fixing the ladder chain. Similarly, the second tension testing head 12 includes a second tension plate. A second tension side plate is integrally formed on the end of the second tension plate near the first tension testing head. A second fixing rod is threaded through the side wall of the second tension side plate, and the second fixing rod abuts against the side wall of the ladder chain. A hydraulic cylinder 13 is connected to the end of the first tension plate away from the first tension side plate. The hydraulic cylinder 13 drives the first tension plate to move away from the second tension plate. A pressure sensor is set to measure the pressure on the ladder chain and feed it back to the ERP system to determine the quality of the ladder chain.

[0038] Reference Figure 2An adjustment groove 2 is provided on the top wall of the testing platform 1. The adjustment groove 2 is located between the first tensile testing head 11 and the second tensile testing head 12. The adjustment groove 2 is a square groove. A displacement screw 5 is provided in the adjustment groove 2. The two ends of the displacement screw 5 are welded and fixed to the inner side wall of the adjustment groove 2. An adjustment block 21 is sleeved on the displacement screw 5. The displacement screw 5 passes through the adjustment block 21. A displacement sleeve 51 is sleeved on the displacement screw 5 and is threadedly connected to the displacement screw 5. The end of the displacement sleeve 51 near the adjustment block 21 is rotatably connected to the side wall of the adjustment block 21. Therefore, when the displacement sleeve 51 rotates, it can move horizontally on the displacement screw 5. When the displacement sleeve 51 moves, it will drive the adjustment block 21 to move, thereby adjusting the position of the adjustment block 21.

[0039] Reference Figure 2 and Figure 3 A locking groove 6 is provided on the inner wall of the adjusting groove 2. A sliding locking rod 61 is provided in the locking groove 6. The sliding locking rod 61 is arranged parallel to the shifting screw 5. A locking block 52 passes through the sliding locking rod 61. The locking block 52 is slidably connected to the sliding locking rod 61, and the locking block 52 is adapted to the locking groove 6. A locking rod 53 is hinged to one end of the locking block 52 near the shifting sleeve 51. A buffer adhesive layer 62 is glued to the other end of the locking rod 53 away from the hinge point with the locking block 52. The locking rod 53 is a square rod, and the buffer adhesive layer 62 is a square structure. A plurality of locking grooves 54 are provided on the outer side wall of the shifting sleeve 51 along the axial direction of the shifting sleeve 51. The locking grooves 54 are arranged along the length direction of the shifting sleeve 51. When the shifting sleeve 51 moves the adjusting block 21 to a suitable position, the locking block 52 can be moved to the corresponding position and the locking rod 53 can be rotated so that the locking rod 53 rotates toward the shifting sleeve 51 until the locking rod 53 is inserted into the locking groove 54, thereby completing the fixation of the shifting sleeve 51 and making it difficult for the shifting sleeve 51 to rotate.

[0040] Reference Figure 2 and Figure 4The top of the adjusting block 21 has a receiving groove 22. A lifting cylinder 23 is fixedly installed on the inner bottom wall of the receiving groove 22. The output end of the lifting cylinder 23 faces the vertical direction. A lifting rod 24 is welded and fixed to the output end of the lifting cylinder 23. The end of the lifting rod 24 away from the lifting cylinder 23 is rotatably connected to a sliding block 25 via a rotating shaft. The sliding block 25 has a cuboid structure. A steering cylinder 27 is rotatably connected to the side wall of the lifting rod 24 via a rotating shaft. The steering cylinder 27 and the sliding block 25 both rotate in the same plane. A steering groove 29 is provided on the side wall of the sliding block 25 near the steering cylinder 27 along the length direction of the sliding block 25. The output end of the steering cylinder 27 is rotatably connected to the steering block 28 via a rotating shaft. The steering block 28 is inserted into the steering groove 29 and is slidably connected to the steering groove 29. When the steering cylinder 27 moves, it drives the steering block 28 at the output end to slide in the steering groove 29, thereby changing the angle of the sliding block 25.

[0041] Reference Figure 5 and Figure 6 The top of the sliding block 25 is provided with a sliding groove 26, which is not connected to the turning groove 29. The sliding groove 26 is set along the length direction of the sliding block 25. A locking detection device for fixing the ladder chain is provided in the sliding groove 26. The locking detection device includes a locking base plate 3 and a locking side plate 31. The locking base plate 3 is inserted into the sliding groove 26 and is slidably connected to the sliding groove 26. The locking side plate 31 is welded and fixed to the side wall of the locking base plate 3. A second fixing hole 42 is provided on the side wall of the locking side plate 31 along the width direction of the sliding groove 26. The second fixing hole 42 is a circular hole. A plurality of first fixing holes 41 are provided on the side wall of the sliding block 25 along the width direction of the sliding groove 26. The first fixing holes 41 are circular holes, and the diameters of the first fixing holes 41 and the second fixing holes 42 are equal. The first fixing holes 41 and the second fixing holes 42 are coaxially arranged, and a fixing crossbar 4 is inserted into both the first fixing holes 41 and the second fixing holes 42. The fixing crossbar 4 is adapted to the first fixing holes 41 and the second fixing holes 42. A first fixing magnet 431 is embedded in the end wall of the fixing crossbar 4, and a second fixing magnet 432 is embedded in the bottom wall of the second fixing hole 42. The first fixing magnet 431 and the second fixing magnet 432 are magnetically attracted. When the first fixing magnet 431 and the second fixing magnet 432 are attracted, the fixing crossbar 4 is inserted into the corresponding first fixing hole 41 and the second fixing hole 42 to complete the fixing of the locking detection device in the sliding groove 26.

[0042] Reference Figure 5 and Figure 6The locking side plate 31 extends out of the sliding groove 26. A locking hole 32 is formed through the side wall of the locking side plate 31 along its thickness direction. The locking hole 32 is a threaded hole, and a locking rod 33 is inserted into the locking hole 32. An adapter groove 34 is formed on the end of the locking rod 33 that is inserted into the locking hole 32. The ladder chain is composed of several chain links connected by a connecting shaft. The adapter groove 34 is adapted to the connecting shaft, so that while completing the abutment and fixation, it can abut against the connecting shaft through the inner side wall of the adapter groove 34, further improving the stability of the locking detection device when locking the ladder chain.

[0043] The implementation principle of the ladder chain tension testing device based on an ERP system in this application embodiment is as follows: When the ladder chain tension testing device based on an ERP system in this application is used, the operator first sets both ends of the ladder chain to be tested on the first tension testing head 11 and the second tension testing head 12 to measure the tension in the parallel direction. Then, based on the angle of the tension to be measured, the operator rotates the shifting sleeve 51 to adjust the position of the adjusting block 21. After the adjusting block 21 is adjusted to the correct position, the lifting cylinder 23 is opened, so that the lifting cylinder 23 is raised to a suitable position. Then, the steering cylinder 27 is opened to adjust the tilt angle of the sliding block 25. Next, the ladder chain is placed between a pair of locking side plates 31, and the locking rod 33 is rotated so that the locking rod 33 abuts against the side wall of the ladder chain, thereby completing the fixation of the ladder chain. Then, the tension of the ladder chain is tested, and the measured tension value and the corresponding tensile distance are entered into the ERP system to determine the quality of the chain.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ladder chain tension detection device based on an ERP system, characterized in that: The system includes a testing platform (1) placed horizontally. The testing platform (1) is equipped with a first tension testing head (11) and a second tension testing head (12) connected to the end of the ladder chain. The first tension testing head (11) and the second tension testing head (12) are arranged in a straight line corresponding to each other. The first tension testing head (11) is slidably connected to the testing platform (1). A hydraulic cylinder (13) is provided at the end of the first tension testing head (11) away from the second tension testing head (12). The hydraulic cylinder (13) is used to drive the first tension testing head (11) to move. The second tension testing head (12) is fixed to the testing platform (1). Connection; The detection platform (1) is provided with an adjustment groove (2), which is located between the first tension detection head (11) and the second tension detection head (12). An adjustment block (21) is slidably connected in the adjustment groove (2). A receiving groove (22) is provided on the top wall of the adjustment block (21). A lifting cylinder (23) is provided on the bottom wall of the receiving groove (22). A lifting rod (24) is provided at the output end of the lifting cylinder (23). A locking detection device for locking the ladder chain is provided on the top of the lifting rod (24). A sliding block (25) is rotatably connected to the top of the lifting rod (24). A sliding groove (2) is provided on the top wall of the sliding block (25). 6) The locking detection device is disposed in the sliding groove (26), and the locking detection device is slidably connected to the sliding groove (26). The sliding groove (26) is provided with a fixing mechanism for fixing the locking detection device. A steering cylinder (27) is rotatably connected to the side wall of the lifting rod (24). A steering block (28) is rotatably connected to the output end of the steering cylinder (27). A steering groove (29) is opened on the bottom wall of the sliding block (25). The steering block (28) is inserted into the steering groove (29). The steering block (28) is slidably connected to the steering groove (29). The locking detection device includes a locking base plate (3) and a locking side plate (31). Plate (3) is disposed in the sliding groove (26). A pair of locking side plates (31) are provided. The locking side plates (31) extend out of the sliding groove (26). The locking side plates (31) are disposed on the side wall of the locking base plate (3) away from the lifting rod (24). A pair of locking side plates (31) are provided. A locking hole (32) is opened on one of the locking side plates (31). The locking hole (32) is a threaded hole. A locking rod (33) is inserted into the locking hole (32). An adapter groove (34) is opened on one end wall between the pair of locking side plates (31). The adapter groove (34) is adapted to the connecting shaft of the ladder chain.The fixing mechanism includes a fixing crossbar (4), a first fixing magnet (431), and a second fixing magnet (432). A plurality of first fixing holes (41) are provided on the side wall of the sliding groove (26), and a second fixing hole (42) is provided on the locking detection device. The fixing crossbar (4) is inserted into the first fixing holes (41) and the second fixing holes (42). The first fixing magnet (431) is disposed on the end wall of the fixing crossbar (4), and the second fixing magnet (432) is embedded in the bottom wall of the second fixing hole (42). The first fixing magnet (431) and the second fixing magnet (432) are magnetically attracted to each other.

2. The ladder chain tension detection device based on an ERP system according to claim 1, characterized in that: A displacement screw (5) is provided in the adjustment groove (2). The displacement screw (5) is connected to the inner side wall of the adjustment groove (2). The displacement screw (5) is arranged along the length direction of the adjustment groove (2). The displacement screw (5) passes through the side wall of the adjustment block (21). A displacement sleeve (51) is sleeved on the displacement screw (5). The displacement sleeve (51) is rotatably connected to the side wall of the adjustment block (21).

3. The ladder chain tension detection device based on an ERP system according to claim 2, characterized in that: A locking block (52) is slidably connected to the inner side wall of the adjusting groove (2). A locking rod (53) is hinged to the side wall of the locking block (52) near the shifting sleeve (51). A plurality of locking grooves (54) are opened along the circumference of the shifting sleeve (51) on the outer side wall of the shifting sleeve (51). The locking grooves (54) are arranged along the length direction of the shifting sleeve (51). The locking rod (53) is inserted into the locking groove (54).

4. The ladder chain tension detection device based on an ERP system according to claim 3, characterized in that: A locking groove (6) is provided on the side wall of the adjusting groove (2). A sliding locking rod (61) is provided in the locking groove (6). The sliding locking rod (61) is provided on the inner side wall of the locking groove (6). The sliding locking rod (61) is provided along the length direction of the locking groove (6). The locking block (52) is sleeved on the sliding locking rod (61). The locking block (52) is slidably connected to the sliding locking rod (61).

5. The ladder chain tension detection device based on an ERP system according to claim 3, characterized in that: A buffer layer (62) is provided at one end of the locking rod (53) near the locking groove (54). The buffer layer (62) abuts against the inner sidewall of the locking groove (54). The locking groove (54) is a square groove. The locking rod (53) and the buffer layer (62) are adapted to be disposed in the locking groove (54).

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