Automatic grease scraper for elevator guide rails

By introducing an elastic adjustment and limit reset structure into the automatic oil stain scraper for elevator guide rails, the problem of reduced oil stain scraping ability before the cleaning blades wear out has been solved, achieving stable cleaning force and convenient replacement, thus improving the cleaning efficiency of elevator guide rails.

CN224467301UActive Publication Date: 2026-07-07ZHEJIANG XINFU ELEVATOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINFU ELEVATOR CO LTD
Filing Date
2025-09-11
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The cleaning blades of existing automatic oil sludge scrapers for elevator guide rails lose their oil sludge removal ability and affect work quality if they are not replaced before they wear out.

Method used

An automatic oil stain scraper was designed, which adopts an elastic adjustment mechanism and a limit reset structure to ensure that the cleaning blade always adheres to the surface of the elevator guide rail. Automatic adjustment is achieved by adjusting the spring and the support slide rod. With the help of the snap-fit ​​and disassembly structure, it is easy to quickly replace the cleaning blade.

Benefits of technology

The cleaning pads have improved their stable cleaning power, reduced the frequency of manual maintenance, extended their service life, and ensured continuous cleaning of the guide rail surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic oil dirt scraper for elevator guide rail, including scraper casing, the inside of scraper casing is opened and has movable cavity, the inside fixed mounting of movable cavity has support slide rod, the surface of support slide rod is provided with the adjusting mounting seat, the surface of support slide rod is located and is provided with adjusting spring in the side of adjusting mounting seat, the side of adjusting mounting seat is opened and has the clamping groove, the outside of scraper casing is provided with the cleaning piece, the fixed mounting of clamping block has in cleaning piece, the between cleaning piece and clamping block is provided with the sheltering side, the surface of scraper casing is opened and has the connecting slot. The automatic oil dirt scraper for elevator guide rail, through the spring automatic adjusting mechanism drive cleaning piece always with moderate force to adhere to elevator guide rail surface, automatic adjusting mechanism reduces manual intervention frequency, can long -term maintain stable cleaning force, significantly reduce routine maintenance burden, continuously adhere to ensure that scraping action evenly covers guide rail surface, effectively removes stubborn oil dirt and rust mark.
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Description

Technical Field

[0001] This utility model relates to the field of elevator guide rail cleaning technology, specifically an automatic oil stain scraper for elevator guide rails. Background Technology

[0002] Elevator guide rails are key elevator components consisting of steel rails and connecting plates. Installed in the elevator shaft, they provide a guiding path for the vertical or inclined movement of the car and counterweight. Their main functions include ensuring smooth car operation, reducing swaying, and supporting the safety brake to stop the car in emergencies, thereby ensuring passenger safety and ride comfort. In terms of safety, the guide rails withstand dynamic loads and braking impacts, preventing the car from falling out of control. They are the core supporting component of the elevator safety system. In terms of comfort, the guide rails control the running trajectory through precise installation, minimizing deviation and vibration, and improving the riding experience. In addition, as part of the elevator guidance system, the guide rails work in conjunction with the traction system to ensure efficient and reliable overall operation. Industry trends show that elevator guide rails are upgrading from traditional manufacturing to intelligent and green manufacturing, with technological iteration and service innovation becoming key drivers of corporate competitiveness.

[0003] However, in actual use, the automatic oil stain remover for elevator guide rails has certain limitations. As the cleaning blades of the oil stain remover will wear down during use, they need to be replaced regularly. Before maintenance and replacement of the cleaning blades, even if the cleaning blades have not reached their replacement period, the cleaning blades will gradually wear down, causing the oil stain removal ability to decrease continuously, which is not conducive to improving the work quality. Based on this, an automatic oil stain remover for elevator guide rails is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic oil stain scraper for elevator guide rails, which has the advantages of high practicality and easy maintenance of working quality over a long period of time. It solves the problem that even if the cleaning disc has not reached its replacement period, the cleaning disc will gradually wear down before maintenance and replacement, resulting in a continuous decrease in the oil stain scraping ability, which is not conducive to improving the working quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic oil stain scraper for elevator guide rails, comprising a scraper housing, an internal movable cavity, a support slide rod fixedly installed inside the movable cavity, an adjustment mounting seat on the surface of the support slide rod, an adjustment spring on the side of the adjustment mounting seat on the surface of the support slide rod, a locking groove on the side of the adjustment mounting seat, a cleaning plate on the outer side of the scraper housing, a locking block fixedly installed on the cleaning plate, a blocking edge between the cleaning plate and the locking block, a connecting groove on the surface of the scraper housing, a limit block fixedly installed on the side of the adjustment mounting seat near the adjustment spring, a connecting rod fixedly installed at the front end of the limit block, and a pull handle fixedly installed at the front end of the connecting rod extending to the scraper housing.

[0006] Furthermore, the upper end of the scraper housing is provided with mounting holes, which are evenly spaced.

[0007] Furthermore, the movable cavity and the support slide rod are evenly spaced, and a limit plate is fixedly installed at the end of the support slide rod away from the scraper housing.

[0008] Furthermore, the surface of the support slide rod is slidably connected to the adjustment mounting base, and the support slide rod and the adjustment spring are sleeved together.

[0009] Furthermore, one end of the adjusting spring is fixedly connected to the scraper housing, and the other end of the adjusting spring is fixedly connected to the adjusting mounting base.

[0010] Furthermore, the end of the engaging block away from the cleaning blade extends into the interior of the scraper housing and engages with the engaging groove. The cleaning blade and the adjusting mounting base are connected by bolts.

[0011] Furthermore, the locking block is slidably connected to the connecting slot, the shielding edge is adapted to the connecting slot, and the connecting rod is slidably connected to the scraper housing.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This automatic oil scraper for elevator guide rails uses an automatic elastic adjustment mechanism to ensure the cleaning blade maintains a moderate pressure against the elevator guide rail surface. The automatic adjustment mechanism reduces the frequency of manual intervention, maintains stable cleaning power over a long period, significantly reducing daily maintenance burden. The continuous contact ensures even coverage of the guide rail surface, effectively removing stubborn oil and rust. A limit and reset structure allows for easy adjustment of the mounting base's position, enabling precise resetting. Combined with a snap-fit ​​disassembly and assembly structure, this facilitates quick disassembly and replacement of the cleaning blade, improving the convenience of maintenance and replacement of the automatic oil scraper. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the structure of the adjusting mounting base and cleaning plate of this utility model. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the structure of the adjusting mounting base and cleaning plate of this utility model. Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the movable cavity and connecting slot structure of this utility model.

[0019] In the diagram: 1. Scraper housing; 2. Movable cavity; 3. Support slide rod; 4. Adjustable mounting base; 5. Adjusting spring; 6. Engaging groove; 7. Cleaning blade; 8. Engaging block; 9. Covering edge; 10. Limiting block; 11. Connecting rod; 12. Pull handle; 13. Connecting slot; 14. Mounting hole. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 An automatic oil stain scraper for elevator guide rails in this embodiment includes a scraper housing 1. A movable cavity 2 is provided inside the scraper housing 1. A support slide rod 3 is fixedly installed inside the movable cavity 2. An adjustment mounting seat 4 is provided on the surface of the support slide rod 3. An adjustment spring 5 is provided on the side of the adjustment mounting seat 4 on the surface of the support slide rod 3. A locking groove 6 is provided on the side of the adjustment mounting seat 4. A cleaning plate 7 is provided on the outside of the scraper housing 1. A locking block 8 is fixedly installed on the cleaning plate 7. A blocking edge 9 is provided between the cleaning plate 7 and the locking block 8. A connecting groove 13 is provided on the surface of the scraper housing 1. A limit block 10 is fixedly installed on the side of the adjustment mounting seat 4 near the adjustment spring 5. A connecting rod 11 is fixedly installed at the front end of the limit block 10. A pull handle 12 is fixedly installed at the front end of the connecting rod 11 extending to the scraper housing 1.

[0022] In this embodiment, the automatic oil stain scraper is mainly used for the daily cleaning and maintenance of elevator guide rails. Its installation position can effectively contact the guide rail surface when the elevator is running, realizing the automatic scraping of oil stains and rust. The scraper is fixed on the upper and lower surfaces or sides of the elevator body, and the cleaning mechanism directly adheres to the outer wall of the guide rail. It automatically completes the scraping operation during the elevator's lifting and lowering process. When installing, a certain amount of operating space needs to be reserved around the elevator body to avoid the cleaning mechanism colliding with the shaft wall or bracket during operation, which would affect the scraping effect or damage the guide rail coating.

[0023] Please see Figures 1-5 In this embodiment, the upper end of the scraper housing 1 is provided with mounting holes 14, which are evenly distributed. The movable cavity 2 and the support slide rod 3 are also evenly distributed. A limit piece is fixedly installed at the end of the support slide rod 3 away from the scraper housing 1. The surface of the support slide rod 3 is slidably connected to the adjustment mounting seat 4. The support slide rod 3 and the adjustment spring 5 are sleeved together. One end of the adjustment spring 5 is fixedly connected to the scraper housing 1, and the other end of the adjustment spring 5 is fixedly connected to the adjustment mounting seat 4.

[0024] It should be noted that the support slide rod 3 can support and guide the adjustment mounting base 4, and the limiting piece of the support slide rod 3 can limit the adjustment distance between the adjustment mounting base 4 and the cleaning plate 7 (the adjustment mechanism of the cleaning plate 7 is only used to avoid the reduction of the oil stain scraping ability and slightly extend the replacement cycle, but the cleaning plate 7 still needs to be replaced regularly). The support slide rod 3 can limit the interaction direction and range of the adjustment mounting base 4. The adjustment spring 5 can use the continuous pressure generated by the deformation to drive the adjustment mounting base 4 and the cleaning plate 7 to move (the connecting slot 13 leaves an interaction distance between the cleaning plate 7 and the locking block 8, which matches the space set by the limiting structure). The blocking edge 9 can ensure that when the cleaning plate 7 is adjusted and moved, the blocking edge 9 always blocks the connecting slot 13. The cleaning plate 7 can fit against the elevator guide rail. The cleaning plate 7, together with the adjustment spring 5, generates continuous pressure on the elevator guide rail (the adjustment spring 5 needs to be selected according to the actual situation, using a metal spring with appropriate elasticity), maintaining a stable cleaning force for a long time. The continuous fit ensures that the scraping action evenly covers the surface of the guide rail.

[0025] Please see Figures 1-5 In this embodiment, the end of the locking block 8 away from the cleaning piece 7 extends into the interior of the scraper housing 1 and engages with the locking groove 6. The cleaning piece 7 and the adjusting mounting base 4 are connected by bolts. The locking block 8 is slidably connected with the connecting groove 13. The shielding edge 9 is adapted to the connecting groove 13. The connecting rod 11 is slidably connected with the scraper housing 1.

[0026] It should be noted that the pull handle 12 can pull the adjusting mounting base 4, and the limiting block 10 can abut against the connecting rod 11 to position the adjusting mounting base 4 (restoring the initial position of the adjusting mounting base 4 to facilitate the subsequent installation of a new cleaning plate 7), making it easy to remove the cleaning plate 7. The locking block 8 can pass through the connecting slot 13 and lock into the locking slot 6. The bolt structure can connect and fix the cleaning plate 7 and the adjusting mounting base 4 (the cleaning plate 7 and the locking block 8 are provided with through connecting holes, and the locking slot 6 is provided with corresponding threaded connecting holes), completing the maintenance and replacement of the cleaning plate 7.

[0027] The working principle of the above embodiments is as follows:

[0028] In use, the support slide rod 3 supports and guides the adjusting mounting base 4, limiting the direction and range of movement of the adjusting mounting base 4. With the continuous pressure generated by the deformation of the adjusting spring 5, the adjusting mounting base 4 and the cleaning plate 7 are moved, so that the cleaning plate 7 can conform to the continuous pressure generated by the elevator guide rail, maintaining a stable cleaning force for a long time. The continuous conformity ensures that the scraping action evenly covers the surface of the guide rail. The adjusting mounting base 4 is pulled by the pull handle 12, and the limit block 10 abuts against the connecting rod 11 to position the pulling position of the adjusting mounting base 4, making it easy to remove the cleaning plate 7. The locking block 8 of the new cleaning plate 7 is passed through the connecting slot 13 and locked into the locking slot 6, and then connected and fixed with bolts to complete the maintenance and replacement of the cleaning plate 7.

[0029] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the art. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic oil stain scraper for elevator guide rails, comprising a scraper housing (1), characterized in that: The scraper housing (1) has an internal movable cavity (2), a support slide rod (3) is fixedly installed inside the movable cavity (2), an adjustment mounting seat (4) is provided on the surface of the support slide rod (3), an adjustment spring (5) is provided on the side of the adjustment mounting seat (4) on the surface of the support slide rod (3), a locking groove (6) is provided on the side of the adjustment mounting seat (4), a cleaning plate (7) is provided on the outside of the scraper housing (1), a locking block (8) is fixedly installed on the cleaning plate (7), a blocking edge (9) is provided between the cleaning plate (7) and the locking block (8), a connecting groove (13) is provided on the surface of the scraper housing (1), a limit block (10) is fixedly installed on the side of the adjustment mounting seat (4) near the adjustment spring (5), a connecting rod (11) is fixedly installed at the front end of the limit block (10), and a pull handle (12) is fixedly installed at the front end of the connecting rod (11) extending to the scraper housing (1).

2. The automatic oil stain remover for elevator guide rails according to claim 1, characterized in that: The upper end of the scraper housing (1) is provided with mounting holes (14), which are evenly distributed.

3. An automatic oil stain scraper for elevator guide rails according to claim 2, characterized in that: The movable cavity (2) and the support slide rod (3) are evenly distributed, and a limit plate is fixedly installed at the end of the support slide rod (3) away from the scraper housing (1).

4. An automatic oil stain remover for elevator guide rails according to claim 3, characterized in that: The surface of the support slide rod (3) is slidably connected to the adjustment mounting base (4), and the support slide rod (3) and the adjustment spring (5) are sleeved together.

5. An automatic oil stain remover for elevator guide rails according to claim 4, characterized in that: One end of the adjusting spring (5) is fixedly connected to the scraper housing (1), and the other end of the adjusting spring (5) is fixedly connected to the adjusting mounting base (4).

6. An automatic oil stain scraper for elevator guide rails according to claim 5, characterized in that: The end of the locking block (8) away from the cleaning plate (7) extends into the interior of the scraper housing (1) and engages with the locking groove (6). The cleaning plate (7) and the adjusting mounting base (4) are connected by bolts.

7. An automatic oil stain remover for elevator guide rails according to claim 6, characterized in that: The locking block (8) is slidably connected to the connecting slot (13), the shielding edge (9) is adapted to the connecting slot (13), and the connecting rod (11) is slidably connected to the scraper housing (1).