Offset correcting device for light escalator chain
By designing components such as fixing blocks, locking posts, inclined blocks, and springs, the effective limiting and guiding of the lightweight escalator chain is achieved, solving the offset problem in the chain transmission process, improving operational stability, and simplifying the installation and maintenance process of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TIANLONG CHAIN
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
Existing lightweight escalator chain misalignment correction devices are difficult to effectively limit during chain transmission, leading to unstable operation.
The design employs a combination of components such as fixed blocks, locking pins, inclined blocks, guide plates, and springs. Sensors monitor the chain in real time and utilize elastic force to limit and guide the chain, preventing deviation.
This improves the stability of the chain operation and facilitates the installation and maintenance of the device.
Smart Images

Figure CN224242510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of escalator equipment technology, and in particular to a lightweight escalator chain offset correction device. Background Technology
[0002] Lightweight escalators are escalators designed for lower loads and shorter travel distances, typically used for internal traffic connections in small commercial spaces, residential buildings, light industrial sites, or public areas. To correct chain misalignment in real time, reduce impact during operation, and improve the smoothness of escalator operation, a lightweight escalator chain misalignment correction device is used.
[0003] A search revealed a Chinese patent publication number, CN2815989Y, which discloses a sprocket anti-deviation mechanism for an escalator. The mechanism includes a pair of step chains located on both sides, a pair of guide rails disposed on the lower side of the step chains, and multiple sprockets disposed on each step chain. The sprockets on each step chain are respectively located on the guide rails on both sides, and each of the guide rails on both sides has an upwardly protruding baffle, which blocks the outer side of the sprocket.
[0004] In the above-mentioned utility model, there are baffles on the guide rails on both sides. The baffles block and limit the sprocket, which can prevent the sprocket from deviating on the guide rail. However, in actual use, the baffles are simply installed on the guide rail. The vibration generated during the chain drive may still cause the position of the baffles to change, making it difficult to correct the deviation effectively. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a lightweight escalator chain offset correction device, which aims to improve the problem that existing offset correction technologies cannot effectively limit and correct the chain transmission process.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lightweight escalator chain offset correction device, comprising a fixed block, a locking pin slidably connected inside the fixed block, a sliding groove formed inside the locking pin, a fixing plate fixedly connected to the outer wall of the locking pin, the outer wall of the fixing plate slidably connected inside the fixed block, a first spring fixedly connected to the outer wall of the fixing plate, the outer wall of the first spring fixedly connected to the inside of the fixed block, an inclined block slidably connected inside the fixed block, the outer wall of the inclined block slidably connected to the inner wall of the sliding groove, a guide plate fixedly connected to the lower surface of the inclined block, a limit block fixedly connected to the outer wall of the guide plate, the outer wall of the limit block slidably connected to the inside of the fixed block, a sensor provided on the outer wall of the fixed block, and a transmission assembly provided on the inner wall of the guide plate, the transmission assembly being used to provide transmission power.
[0007] Through the above technical solution: during the transmission of the chain body, a force will be generated on the guide plate. The inclined block is designed with an inclined surface, and the force will be transmitted to the inclined block. Through the sliding between the locking pin and the inclined block, and through the elastic force of the first spring, the inclined block can be limited, thereby completing the limitation and anti-deviation of the chain body.
[0008] As a further description of the above technical solution:
[0009] The transmission assembly includes a chain body, the outer wall of which is slidably connected to the inner wall of the guide plate, a sprocket is provided on the inner wall of the chain body, and the outer wall of the sprocket is rotatably connected to the escalator body.
[0010] The above technical solution provides power for the stable operation of the escalator body through the transmission between the chain body and the sprocket.
[0011] As a further description of the above technical solution:
[0012] A connecting column is fixedly connected to the outer wall of the fixing block, and a fixing seat is fixedly connected to the outer wall of the connecting column.
[0013] Through the above technical solution, the connecting column serves as a connection, allowing the fixing block to be installed through the fixing seat.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the fixed seat is slidably connected to the inside of the escalator body, and the outer wall of the fixed seat is slidably connected with a locking block.
[0016] The above technical solution allows the fixed seat to be secured by the locking action between the fixed seat and the locking block.
[0017] As a further description of the above technical solution:
[0018] The card block has an internal sliding connection to a limiting plate, and the outer wall of the limiting plate is fixedly connected to the inside of the escalator body.
[0019] Through the above technical solution, the limiting plate plays a role in restricting the movement of the locking block, which can effectively prevent deviation during the sliding process.
[0020] As a further description of the above technical solution:
[0021] The outer wall of the card block is fixedly connected to a sliding column, the outer wall of the sliding column is slidably connected to a fixing plate, and the outer wall of the fixing plate is fixedly connected to the inside of the escalator body.
[0022] Through the above technical solution: the fixed plate provides stable support for the sliding column, and the main body of the escalator fixes the fixed plate.
[0023] As a further description of the above technical solution:
[0024] A second spring is fixedly connected to the outer wall of the card block, and the outer wall of the second spring is fixedly connected to the outer wall of the fixing plate.
[0025] Through the above technical solution: the second spring plays a rebounding role, and the rebound after compression can make the locking block lock the fixing seat.
[0026] As a further description of the above technical solution:
[0027] A connecting piece is fixedly connected to the outer wall of the sliding column, and a pull block is fixedly connected to the outer wall of the connecting piece.
[0028] Through the above technical solution: the connecting piece plays a connecting role, and the sliding column can be driven to slide by pulling the pull block.
[0029] This utility model has the following beneficial effects:
[0030] 1. In this utility model, a force is generated on the guide plate during the transmission of the chain body. Through the cooperation between the locking pin, the fixing plate, the first spring, the inclined block, the guide plate and the limiting block, the guide plate can always limit the chain body, so as to achieve the effect of guiding and positioning the chain body through the elastic force of the first spring, effectively correcting the chain body offset and improving the running stability.
[0031] 2. In this utility model, the fixing block is installed on the escalator body. Through the cooperation between the connecting column, fixing seat, locking block, limiting plate, sliding column, fixing plate, second spring, connecting piece and pull block, the fixing seat can be fixed or disassembled by the locking block, so as to achieve the effect of quick installation and disassembly of the fixing block, which is convenient for use or subsequent maintenance. Attached Figure Description
[0032] Figure 1 This is a perspective view of a lightweight escalator chain offset correction device proposed in this utility model;
[0033] Figure 2 This is a partial structural diagram of the inclined block of a lightweight escalator chain offset correction device proposed in this utility model;
[0034] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the fixing block of a lightweight escalator chain offset correction device proposed in this utility model;
[0035] Figure 4 This is a partial structural diagram of the sensor of a lightweight escalator chain offset correction device proposed in this utility model;
[0036] Figure 5This is a partial structural diagram of the locking block of a lightweight escalator chain offset correction device proposed in this utility model.
[0037] Legend:
[0038] 1. Fixed block; 2. Locking post; 3. Slide groove; 4. Fixed plate; 5. First spring; 6. Inclined block; 7. Guide plate; 8. Limiting block; 9. Transmission assembly; 901. Chain body; 902. Sprocket; 10. Sensor; 11. Escalator body; 12. Connecting post; 13. Fixed seat; 14. Locking block; 15. Limiting plate; 16. Slide post; 17. Fixed plate; 18. Second spring; 19. Connecting plate; 20. Pull block. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a lightweight escalator chain offset correction device, comprising a fixed block 1, a locking post 2 slidably connected inside the fixed block 1, a sliding groove 3 opened inside the locking post 2, a fixing plate 4 fixedly connected to the outer wall of the locking post 2, the outer wall of the fixing plate 4 slidably connected to the inside of the fixed block 1, a first spring 5 fixedly connected to the outer wall of the fixing plate 4, the outer wall of the first spring 5 fixedly connected to the inside of the fixed block 1, an inclined block 6 slidably connected inside the fixed block 1, the outer wall of the inclined block 6 slidably connected to the inner wall of the sliding groove 3, a guide plate 7 fixedly connected to the lower surface of the inclined block 6, a limit block 8 fixedly connected to the outer wall of the guide plate 7, the outer wall of the limit block 8 slidably connected to the inside of the fixed block 1, a sensor 10 provided on the outer wall of the fixed block 1, and a transmission assembly 9 provided on the inner wall of the guide plate 7, the transmission assembly 9 being used to provide transmission power;
[0041] Specifically, the fixing block 1 fixes the locking post 2. The locking post 2 has a groove 3 inside that allows the inclined block 6 to slide. The locking post 2 fixes the fixing piece 4, and the fixing block 1 supports the fixing piece 4, allowing it to slide stably. The fixing block 1 also supports the inclined block 6, allowing it to slide stably. The guide plate 7 fixes the inclined block 6. During the transmission of the chain body 901, a force is generated on the guide plate 7, causing the inclined block 6 to slide inside the fixing block 1. The guide plate 7 fixes the limiting block 8, allowing it to slide stably inside the fixing block 1 without deviation. The inclined block 6 has an inclined surface design. The clamping force exerted on the locking post 2 causes it to slide. The first spring 5 acts as a rebound push during the sliding of the locking post 2, which can reverse the action to clamp the locking post 2 onto the inclined block 6, so that the guide plate 7 always limits the transmission of the chain body 901, thus preventing the chain body 901 from deviating. The sensor 10 is existing technology and generally consists of four parts: a sensitive element, a conversion element, a conversion circuit, and an auxiliary power supply. The sensor 10 is connected to an external main control program to collect data during operation. When the chain body 901 becomes abnormally loose, the sensor 10 will detect the change and transmit the information to the external program to monitor the chain body 901 in real time, which facilitates timely replacement and maintenance.
[0042] Reference Figure 4 The transmission assembly 9 includes a chain body 901, the outer wall of which is slidably connected to the inner wall of the guide plate 7, a sprocket 902 is provided on the inner wall of the chain body 901, and the outer wall of the sprocket 902 is rotatably connected to the escalator body 11.
[0043] Specifically, the chain body 901 and the sprocket 902 work together to transmit power, and the escalator body 11 supports the sprocket 902, enabling the sprocket 902 to rotate stably.
[0044] Reference Figure 4 and Figure 5 A connecting column 12 is fixedly connected to the outer wall of the fixing block 1. A fixing seat 13 is fixedly connected to the outer wall of the connecting column 12. The outer wall of the fixing seat 13 is slidably connected to the inside of the escalator body 11. A locking block 14 is slidably connected to the outer wall of the fixing seat 13. A limit plate 15 is slidably connected to the inside of the locking block 14. The outer wall of the limit plate 15 is fixedly connected to the inside of the escalator body 11. A sliding column 16 is fixedly connected to the outer wall of the sliding column 16. A fixing plate 17 is slidably connected to the outer wall of the fixing plate 17. The outer wall of the fixing plate 17 is fixedly connected to the inside of the escalator body 11. A second spring 18 is fixedly connected to the outer wall of the locking block 14. The outer wall of the second spring 18 is fixedly connected to the outer wall of the fixing plate 17. A connecting piece 19 is fixedly connected to the outer wall of the sliding column 16. A pull block 20 is fixedly connected to the outer wall of the connecting piece 19.
[0045] Specifically, when the fixing block 1 needs to be installed, the fixing block 1 is pushed. The connecting column 12 connects the fixing block 1 and the fixing seat 13. When the fixing seat 13 contacts the locking block 14, it exerts a squeezing force on the locking block 14, causing it to slide. The limiting plate 15 is fixed inside the escalator body 11 to limit the locking block 14 and prevent it from shifting during sliding. The locking block 14 fixes the sliding column 16, allowing it to slide synchronously. The fixing plate 17 is fixed inside the escalator body 11 to fix the sliding column. The sliding of block 16 provides stable support. The second spring 18 is also compressed due to the sliding of block 14, and the second spring 18 has a rebound and locking function. When block 14 and fixed seat 13 are engaged, the second spring 18 will push block 14 in the opposite direction to lock and fix fixed seat 13, thus completing the installation of fixed block 1. When replacement and maintenance are required, simply pull block 20. Connecting piece 19 connects block 14 and sliding column 16, which can pull block 14 to slide, thereby releasing the restriction on fixed seat 13.
[0046] Working Principle: When this device is needed, it is installed inside the escalator body 11. The fixing block 1 is pressed via the connecting column 12 and the fixing seat 13. The fixing seat 13 presses against the locking block 14, causing it to slide through the limiting plate 15. As the locking block 14 slides, it drives the sliding column 16 to slide through the fixing plate 17, pressing against the second spring 18 during this process. The locking block 14 engages with the fixing seat 13. Once engaged, the second spring 18 is no longer pressed, and its rebound pushes the locking block 14 back to lock against the fixing seat 13. Thus, the fixing block 1 is secured by the connecting column 12 and the fixing seat 13. Conversely, when maintenance is required, simply pull the pull block 20 to release the restriction on the fixing seat 13, allowing the fixing block 1 to be disassembled. This facilitates the installation and disassembly of the fixing block 1, making it convenient for use and maintenance, saving time. During the operation of the chain body 901 and sprocket 902, the chain body 901 exerts a force on the guide plate 7. The guide plate 7 drives the limiting block 8 to slide inside the fixed block 1. When the guide plate 7 slides, it drives the inclined block 6 to slide on the inner wall of the slide groove 3. The inclined surface design of the inclined block 6 exerts a squeezing force on the locking pin 2. At this time, the rebound action of the first spring 5 can push the locking pin 2 in the opposite direction to lock the inclined block 6 through the internal slide groove 3, so that the chain body 901 always transmits stably on the inner wall of the guide plate 7. The elastic force of the first spring 5 achieves the positioning and limiting of the guide plate 7, effectively reducing the deviation of the chain body 901 during operation and improving stability. This device can not only achieve the effect of quick installation and disassembly of the fixed block 1, which is convenient for use or subsequent maintenance, but also achieve the guiding and positioning effect of the chain body 901 through the elastic force of the first spring 5, effectively reducing the deviation during operation and improving the operation stability.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lightweight escalator chain offset correction device, comprising a fixing block (1), characterized in that: The fixed block (1) is slidably connected to a locking post (2), and the locking post (2) is provided with a sliding groove (3). The outer wall of the locking post (2) is fixedly connected to a fixing piece (4), and the outer wall of the fixing piece (4) is slidably connected to the inside of the fixed block (1). The outer wall of the fixing piece (4) is fixedly connected to a first spring (5), and the outer wall of the first spring (5) is fixedly connected to the inside of the fixed block (1). The fixed block (1) is slidably connected to an inclined block (6), and the outer wall of the inclined block (6) is slidably connected to the inner wall of the sliding groove (3). The lower surface of the inclined block (6) is fixedly connected to a guide plate (7), and the outer wall of the guide plate (7) is fixedly connected to a limit block (8). The outer wall of the limit block (8) is slidably connected to the inside of the fixed block (1). The outer wall of the fixed block (1) is provided with a sensor (10), and the inner wall of the guide plate (7) is provided with a transmission assembly (9). The transmission assembly (9) is used to provide transmission power.
2. The offset correction device for a lightweight escalator chain according to claim 1, characterized in that: The transmission assembly (9) includes a chain body (901), the outer wall of which is slidably connected to the inner wall of the guide plate (7), and a sprocket (902) is provided on the inner wall of the chain body (901). The outer wall of the sprocket (902) is rotatably connected to the escalator body (11).
3. The offset correction device for a lightweight escalator chain according to claim 1, characterized in that: The outer wall of the fixed block (1) is fixedly connected to a connecting column (12), and the outer wall of the connecting column (12) is fixedly connected to a fixed seat (13).
4. The offset correction device for a lightweight escalator chain according to claim 3, characterized in that: The outer wall of the fixed seat (13) is slidably connected to the inside of the escalator body (11), and the outer wall of the fixed seat (13) is slidably connected to a locking block (14).
5. The offset correction device for a lightweight escalator chain according to claim 4, characterized in that: The card block (14) is internally connected to a limiting plate (15), and the outer wall of the limiting plate (15) is fixedly connected to the inside of the escalator body (11).
6. The offset correction device for a lightweight escalator chain according to claim 4, characterized in that: The outer wall of the card block (14) is fixedly connected to a sliding column (16), and the outer wall of the sliding column (16) is slidably connected to a fixing plate (17). The outer wall of the fixing plate (17) is fixedly connected to the interior of the escalator body (11).
7. The offset correction device for a lightweight escalator chain according to claim 4, characterized in that: The outer wall of the card block (14) is fixedly connected to a second spring (18), and the outer wall of the second spring (18) is fixedly connected to the outer wall of the fixing plate (17).
8. The offset correction device for a lightweight escalator chain according to claim 6, characterized in that: A connecting piece (19) is fixedly connected to the outer wall of the sliding column (16), and a pull block (20) is fixedly connected to the outer wall of the connecting piece (19).