Elevator traction device convenient to clean

Abstract

The invention belongs to the technical field of elevator accessories, and particularly relates to an elevator traction device convenient to clean. The traction device comprises a traction assembly. The traction assembly comprises a box body, a traction wheel installed in the box body and a worm assembly used for driving the traction wheel to rotate. The traction rope is mounted on the traction wheel; the bottom of the box body is provided with a threading opening used for installing a traction rope. The cleaning assembly comprises a wiping assembly used for cleaning a traction rope on the traction wheel, a scraper assembly used for collecting residual dirt on the wiping assembly, and a lifting assembly used for adjusting the height of the wiping assembly in the vertical direction. The cleaning assembly is arranged to wipe and clean the traction rope on the surface of the traction wheel, and the abutting plate abuts against the abutting roller, so that oil stain impurities cleaned out of the abutting roller are extruded out and then fall into the collecting box to be collected, and the technical effect that residues are effectively collected in the traction wheel cleaning process is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator accessories, and in particular relates to an elevator traction device which is easy to clean. Background Art

[0002] The elevator traction sheave is a key component in the elevator system. It is mainly responsible for achieving the lifting and lowering movement of the elevator car and counterweight through friction. The traction sheave is usually made of high-strength materials and has multiple grooves for matching with the wire rope. The friction between the traction sheave and the wire rope is essential for the normal operation of the elevator. The accumulation of dirt and grease will reduce the friction and may cause the traction sheave to slip, thus affecting the lifting function of the elevator. Therefore, regular cleaning of the traction sheave is an important part of elevator maintenance, which helps to ensure the efficiency and safety of elevator operation.

[0003] The Chinese invention patent with publication number CN118811643A discloses an elevator traction system maintenance device, which cleans the traction wheel and the traction rope by the rapid rotation of the first brush cylinder and the second brush cylinder, without the need for manual cleaning by the user. During the cleaning process, the traction wheel and the traction rope can change the cleaning position, which can fully improve the cleaning efficiency and cleaning quality of the traction wheel, and avoid the situation where manual cleaning is not completed and requires secondary cleaning.

[0004] However, in the above technical solution, although the traction rope on the traction wheel can be effectively cleaned, there is no good way to collect the oil residues removed during the cleaning process, which causes the cleaned oil to easily adhere to the wheel of the elevator traction device or other related devices, resulting in the need for secondary cleaning.

[0005] Currently, there is a need for an elevator traction device that can effectively collect debris during the cleaning process of the traction sheave. Summary of the invention

[0006] The purpose of the present invention is to provide an elevator traction device that is easy to clean. The present invention realizes the integrated cleaning and collection functions through two core modules, namely, a traction component and a cleaning component.

[0007] The technical solution adopted by the present invention to solve the above problem is: an elevator traction device that is easy to clean, comprising: A traction assembly, the traction assembly comprising a housing, a traction wheel installed in the housing, and a worm assembly for driving the traction wheel to rotate; The traction rope is installed on the traction wheel; the bottom of the box is provided with a threading hole for installing the traction rope; A cleaning assembly, the cleaning assembly comprising a wiping assembly for cleaning the traction rope on the traction wheel, a scraper assembly for collecting residual dirt on the wiping assembly, and a lifting assembly for adjusting the vertical height of the wiping assembly; The wiping assembly includes a U-shaped plate, an abutting roller installed inside the U-shaped plate, and a flexible wiping member arranged on the abutting roller; the intermediate shaft of the abutting roller is rotatably connected to the inner wall of the U-shaped plate, and the intermediate shaft of the abutting roller is driven to rotate by a rotating motor; The scraper assembly includes an abutment plate abutting the bottom of the abutment roller, and a collection box slidably connected to a sliding groove opened on the U-shaped plate; the bottom of the abutment plate is fixedly connected to the top of the U-shaped plate, and the collection box is located below the abutment roller.

[0008] The function of the traction assembly is that the worm assembly transmits the power of the motor to the traction wheel, which in turn drives the elevator wire rope, so that the elevator car and counterweight can achieve lifting and lowering movements, and the traction assembly provides installation space for the remaining components.

[0009] The wiping assembly is used to clean the traction rope on the traction wheel, effectively removing dust, oil and other impurities on the traction rope, ensuring the stability and reliability of friction, thereby improving the safety and efficiency of elevator operation.

[0010] The scraper assembly is used to collect the dirt remaining on the wiping assembly. By collecting the cleaned impurities, it is prevented from entering the traction system again or falling onto other mechanical parts, keeping the system clean and reducing contamination and potential damage to other parts.

[0011] The lifting assembly is used to adjust the vertical height of the wiping assembly. This function can adjust the contact distance between the wiping assembly and the traction wheel, so that the wiping assembly always maintains a suitable position, that is, by adjusting the height, it can ensure that the wiping assembly maintains a suitable contact pressure with the traction rope, so as not to excessively wear the rope or wiping equipment. The lifting assembly can also facilitate the unloading of the wiping assembly for deep cleaning or replacement of related accessories.

[0012] In the wiping assembly, the U-shaped plate provides a stable structural framework for supporting and fixing the installation of the abutment roller. It ensures that the abutment roller maintains the correct position information during the cleaning process and can withstand the forces applied during operation. The abutment roller is the main component in contact with the traction rope. Its rotational movement can effectively and evenly apply the cleaning force on the wiper to the traction rope. The function of the abutment roller is to ensure that the wiper contacts the traction rope tightly and smoothly, thereby effectively removing attached dirt and impurities. The flexible wiper directly contacts the traction rope and is responsible for the actual cleaning work. Due to its flexible characteristics, it can adapt to the surface shape of the rope, provide good cleaning effect, and reduce wear on the rope surface. The rotary motor drives the rotation of the abutment roller, so that the wiper can clean the traction rope continuously and evenly. The drive of the motor ensures the automation of the wiping process, reduces manual intervention, and improves cleaning efficiency and consistency.

[0013] In the wiping assembly, the abutment plate is located at the bottom of the abutment roller. Its main function is to scrape off the dirt generated during the cleaning process from the abutment roller. Through the close contact of the abutment plate, impurities remaining on the surface of the abutment roller during the wiping process can be effectively removed, ensuring that the scraped dirt will not re-attach to the traction rope. The collection box is used to collect the dirt scraped off by the abutment plate to prevent it from scattering around after being scraped by the abutment plate and causing pollution to other systems. The design of the collection box is convenient for regular emptying and cleaning to maintain the cleanliness and effective operation of the entire system. The sliding groove provides a track for the movement of the collection box, ensuring that the collection box can be accurately located under the abutment roller and cooperate with the abutment plate. When emptying or maintenance is required, the sliding groove allows the collection box to be easily removed.

[0014] A further preferred technical solution is that: a movable groove is opened at the bottom of the inner wall of the box body, and a lifting assembly is slidably connected inside the movable groove; the lifting assembly includes a movable groove plate slidably arranged inside the movable groove, a screw rod assembly rotatably connected to the inner wall of the movable groove plate, a handwheel fixedly connected to the end of the screw rod assembly, a threaded block threadedly connected to the screw rod assembly, and a connecting rod rotatably connected to the top of the threaded block; one end of the connecting rod is rotatably connected to the bottom of the U-shaped plate.

[0015] A further preferred technical solution is that the screw rod assembly is a bidirectional screw rod, and two thread blocks are provided, which are respectively screwed on the positive and negative threads of the bidirectional screw rod.

[0016] Positive and negative threads refer to threads with different rotation angles on the bidirectional screw, which can make the threaded blocks screwed on it move closer to or away from each other. The lifting component is set as a bidirectional screw. The bidirectional screw is rotated so that the bidirectional screw and the two threaded blocks move relative to each other. Under the action of the long rod, the U-shaped plate is gradually lifted. When the abutment roller abuts against the surface of the traction wheel, the rotation of the bidirectional screw stops. The setting of the bidirectional screw makes the lifting process of the U-shaped plate more stable.

[0017] A further preferred technical solution is that a guide groove is provided on the side of the inner wall of the movable groove, a clamping block is fixedly connected to the surface of the movable groove plate, and the clamping block is slidably arranged inside the guide groove.

[0018] A further preferred technical solution is that: a mounting plate is fixedly connected to the side of the movable slot plate, threaded openings are provided on the bottom of the box body and the mounting plate, and bolts are connected to the internal threads of the threaded openings.

[0019] A further preferred technical solution is that a door is installed on the box.

[0020] A further preferred technical solution is that the worm assembly includes a drive motor installed inside the housing, a worm fixedly connected to the output end of the drive motor and rotatably connected to the inner wall of the housing, a worm wheel arranged on the surface of the worm, and a long rod fixedly passing through and connected to the worm wheel; the traction wheel is sleeved on the outside of the long rod.

[0021] A further preferred technical solution is that mounting blocks are installed at the bottom of the driving motor and the rotating motor, and the surfaces of the two mounting blocks are fixedly connected to the bottom of the inner wall of the box body and the back of the U-shaped plate respectively.

[0022] A further preferred technical solution is that: a mounting plate is fixedly connected to the top of the threaded block, a support rod is fixedly connected to the mounting plate, one end of the connecting rod is sleeved on the outside of the support rod, a disc is fixedly connected to the bottom of the U-shaped plate, a short rod is fixedly provided on the disc, and one end of the connecting rod is sleeved on the outside of the short rod.

[0023] A further preferred technical solution is that the flexible wiping member is a sponge.

[0024] In summary, the present invention has the following benefits: 1. The present invention sets a cleaning component. During the rotation of the traction wheel, the abutment roller rotates continuously to wipe and clean the traction rope on the surface of the traction wheel. When the abutment roller rotates, the abutment plate abuts against the abutment roller, so that the oil stains and impurities in the abutment roller are squeezed out and then fall into the inside of the collection box along the abutment plate for collection, so that the oil stains and impurities generated after cleaning the traction rope on the surface of the traction wheel are conveniently collected, thereby achieving the technical effect of effectively collecting residues in the process of cleaning the traction wheel.

[0025] 2. The present invention provides a lifting assembly. When the abutment roller needs to be replaced, the door of the box is opened, the restriction of the movable slot plate by two bolts is released, and the movable slot plate is pulled outward, and then the flexible wiping piece on the abutment roller is replaced. At the same time, the impurities in the collection box are taken out and cleaned. After the replacement and cleaning work is completed, the movable slot plate is pushed into the interior of the box again, and then the box and the movable slot plate are connected by bolts, so that it is more convenient to clean impurities or replace the flexible wiping piece of the abutment roller. The lifting assembly expands the operating space of the replacement operation process.

[0026] 3. The present invention can complete the cleaning work without disassembling the traction rope. The driving motor is started. Under the action of the worm, worm wheel and long rod, the traction wheel starts to rotate. Then the rotating motor is started. The rotating motor rotates with the abutment roller, thereby realizing the cleaning of the wire rope on the elevator. There is no need to stop the machine for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the housing, worm and worm wheel of the present invention; Figure 3 It is a schematic structural diagram of a bidirectional screw rod, a threaded block and a connecting rod of the present invention; Figure 4 It is a schematic diagram of the structure of the U-shaped plate, the abutting roller and the movable groove plate of the present invention; Figure 5 It is a schematic structural diagram of the long rod, traction wheel and abutment roller of the present invention.

[0028] In the accompanying drawings, the components represented by each number are as follows: 1. Box body; 2. Worm; 3. Worm wheel; 4. Long rod; 5. Traction wheel; 6. Moving slot plate; 7. Bidirectional screw; 8. Threaded block; 9. Connecting rod; 10. U-shaped plate; 11. Abutment roller; 12. Abutment plate; 13. Driving motor; 14. Rotating motor. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0031] Example: Please combine Figure 1-Figure 5 , an elevator traction device that is easy to clean in this embodiment includes: A traction assembly, the traction assembly comprising a housing 1, a traction wheel 5 installed in the housing 1, and a worm assembly for driving the traction wheel 5 to rotate; The traction rope is installed on the traction wheel 5; the bottom of the box body 1 is provided with a threading hole for installing the traction rope; A cleaning assembly, the cleaning assembly comprising a wiping assembly for cleaning the traction rope on the traction wheel 5, a scraper assembly for collecting residual dirt on the wiping assembly, and a lifting assembly for adjusting the vertical height of the wiping assembly; The wiping assembly includes a U-shaped plate 10, an abutting roller 11 installed inside the U-shaped plate 10, and a flexible wiping member arranged on the abutting roller 11; the intermediate shaft of the abutting roller 11 is rotatably connected to the inner wall of the U-shaped plate 10, and the intermediate shaft of the abutting roller 11 is driven to rotate by a rotating motor 14; The scraper assembly includes an abutment plate 12 abutting against the bottom of the abutment roller 11, and a collection box slidably connected to a sliding groove opened on the U-shaped plate 10; the bottom of the abutment plate 12 is fixedly connected to the top of the U-shaped plate 10, and the collection box is located below the abutment roller 11.

[0032] Among them, the box 1 has two threading ports at the bottom, which are convenient for installing the traction rope and performing traction work. The front of the box 1 is equipped with a door. The box 1 adopts a split sheet metal welding structure, and symmetrically distributed threading ports are opened at the bottom for the wire rope to pass through and engage with the traction wheel 5. The threading port diameter matches the traction rope and keeps a sufficient distance from the traction rope to prevent the oil stains on the traction rope from hanging on the threading port. The front of the box 1 is equipped with a double-door structure, which is hinged, and a sealing strip is set at the door gap to facilitate the maintenance of internal components.

[0033] As attached Figure 2 As shown, the left end of the worm 2 is rotatably connected to the left side of the inner wall of the box body 1, and the surface of the worm 2 is connected to the worm wheel 3. The worm is a rotating component similar to a screw, with spiral teeth, and the worm wheel is a disc-shaped component with teeth, which meshes with the teeth of the worm. The drive motor 13 uses a three-phase asynchronous motor with an IP55 protection level, and is fixed to the bottom base on the inner side of the box body 1 through a flange. The module of the worm 2 is m=3, and the thread is single-start; the number of teeth of the worm wheel is Z=40, and the material is tin bronze. The meshing transmission ratio of the two is i=40, which realizes high torque and low speed output. The output end of the drive motor 13 refers to the end of the motor shaft or the rotating part of the motor, through which power is transmitted to drive the connected mechanical parts.

[0034] The U-shaped plate 10 is formed by bending 20mm thick 304 stainless steel, and a bearing seat containing a deep groove ball bearing 6204 is symmetrically arranged on the inner side for installing the abutment roller 11. The abutment roller 11 is a Φ80mm hollow roller, and the surface is covered with a flexible wiper, specifically a polyurethane sponge with an opening rate of ≥90% and a thickness of 10mm. The rotating motor 14 uses a 24V DC reduction motor with an output speed of 60r / min. It is fixed to the back bracket of the U-shaped plate 10 by bolts, and the motor shaft is directly connected to the intermediate shaft of the abutment roller through a coupling. The rotating motor 14 drives the abutment roller 11 to rotate in the opposite direction to the traction wheel. The sponge wiper contacts the surface of the wire rope at a linear speed of about v=0.25m / s, peeling off the oil stains through shearing action, and at the same time, the sponge pores absorb liquid oil stains.

[0035] The abutment plate 12 is made of polytetrafluoroethylene PTFE, with a rectangular cross section, and the upper edge abuts against the flexible wiper to form a scraping interface. Collection box: A drawer-type stainless steel container with a volume of 1L, with a guide slope at the bottom that tilts toward the middle, and a magnetic lock integrated in the front handle, which cooperates with the sliding groove of the U-shaped plate 10 with an accuracy of H7 / g6 to ensure smooth pulling and shockproof shedding. After the oil is scraped off by the abutment plate 12, it slides into the collection box along the lower surface of the inclined abutment plate, and the guide slope guides the residue to gather in the middle of the box body to avoid accumulation at the entrance.

[0036] A movable groove is provided at the bottom of the inner wall of the box body 1, and a lifting assembly is slidably connected inside the movable groove; the lifting assembly includes a movable groove plate 6 slidably arranged inside the movable groove, a screw assembly rotatably connected to the inner wall of the movable groove plate 6, a handwheel fixedly connected to the end of the screw assembly, a threaded block 8 threadedly connected to the screw assembly, and a connecting rod 9 rotatably connected to the top of the threaded block 8; one end of the connecting rod 9 is rotatably connected to the bottom of the U-shaped plate 10.

[0037] The screw rod assembly is a bidirectional screw rod 7 , and two thread blocks 8 are provided, which are respectively screwed on the forward and reverse threads of the bidirectional screw rod 7 .

[0038] The bidirectional screw 7 is a Tr20×4 trapezoidal thread with an effective stroke of 200mm. The inner end is supported on the inner wall of the movable slot plate 6 by a 7206B angular contact bearing. The threaded block 8 is made of aluminum alloy ZL102, and the top is hinged to the connecting rod 9 by a Φ10mm pin. The connecting rod 9 is made of a Φ12mm cold-drawn steel pipe, and GE12ES joint bearings are set at both ends to ensure the freedom of rotation. The other end of the bidirectional screw 7 passes through the movable slot plate 6 and is fixedly connected to a handwheel. Turning the handwheel drives the bidirectional screw 7 to rotate, so that the two threaded blocks 8 move toward each other, and the connecting rod 9 pushes the U-shaped plate 10 to rise and fall vertically, and the distance between the abutment roller 11 and the traction wheel 5 is adjusted. The threaded cooperation between the bidirectional screw 7 and the threaded block 8 can ensure that the U-shaped plate 10 has no displacement in a vibration environment.

[0039] The worm assembly includes a driving motor 13 installed inside the housing 1, a worm 2 fixedly connected to the output end of the driving motor 13 and rotatably connected to the inner wall of the housing 1, a worm wheel 3 arranged on the surface of the worm 2, and a long rod 4 fixedly penetrated and connected to the worm wheel 3; the traction wheel 5 is sleeved on the outside of the long rod 4.

[0040] The axis of the worm wheel 3 is connected with a long rod 4, which is a 45# steel quenched and tempered shaft with a diameter of Φ50mm. One end of the long rod 4 is supported on the side wall of the box through a UCP208 ball bearing with a seat to ensure that the coaxiality of the traction wheel 5 is ≤0.05mm. The wheel body of the traction wheel 5 is cast with QT600-3 ductile iron, and 7 V-shaped rope grooves are opened on the surface, with a groove angle of 35° and a depth of 15mm. The inner wall of the rope groove is high-frequency quenched, with a hardness of HRC50-55 to improve wear resistance.

[0041] The implementation principle of an elevator traction device that is easy to clean in the embodiment of the present application is as follows: first, the bidirectional screw rod 7 is rotated so that the bidirectional screw rod 7 and the two threaded blocks 8 move relative to each other. Under the action of the long rod 4, the U-shaped plate 10 is gradually raised. When the abutment roller 11 abuts against the surface of the traction wheel 5, the rotation of the bidirectional screw rod 7 is stopped. After the adjustment is completed, the rotating motor 14 is started to make the abutment roller 11 rotate at 60r / min, and then the driving motor 13 is started to make the traction wheel 5 run at a low speed of 0.5m / s. Under the action of the worm gear 3 and the long rod 4, the traction wheel 5 starts to rotate, thereby realizing the transportation of the wire rope on the elevator. During the rotation of the traction wheel 5, the abutment roller 11 rotates continuously to wipe and clean the surface of the traction wheel 5. When the abutment roller 11 rotates, the abutment plate 12 abuts against the abutment roller 11, so that the oil stains and impurities in the abutment roller 11 are squeezed out, and then fall into the inside of the collection box along the abutment plate 12 for collection, which makes it convenient to clean the oil stains and impurities on the surface of the traction wheel 5 and improves the cleaning efficiency of the device.

[0042] When the abutment roller 11 needs to be replaced, open the two-way door and rotate to release the restriction of the two bolts on the movable slot plate 6, pull the movable slot plate 6 outward to the limit position, and the guide slot limit block prevents excessive displacement. Then replace the sponge material on the abutment roller 11, and at the same time take out and clean the impurities in the collection box. After completing the replacement and cleaning work, push the movable slot plate 6 into the box body 1 again, and then connect the box body 1 and the movable slot plate 6 with bolts, and finally tighten the bolts with a torque of 15 N·m, so that it is more convenient to clean impurities or replace the abutment roller 11, and the parts that need to be cleaned can be removed immediately for easy cleaning.

[0043] In a preferred embodiment, an acrylic plate is provided on the side of the box body. During the cleaning process, the operator can monitor the filling status of the collection box through the observation window. When the oil stain reaches 80% of the volume, the equipment is paused and the collection box is pulled out for cleaning.

[0044] In an adaptive adjustment example, when the diameter of the wire rope is reduced by 2mm due to wear, the hand wheel is turned 2 circles, and the corresponding U-shaped plate is raised by 4mm, so that the abutment roller 11 presses the rope body again to keep the contact pressure constant. The advantage is that the adjustment accuracy of the lifting component is up to ±0.1mm, ensuring the consistency of cleaning pressure at different wear stages.

[0045] In this embodiment, compared with the technical solution disclosed in the Chinese invention patent with publication number CN118811643A, the oil removal rate of the device is as high as 95%, and the residue collection rate is ≥90%. The modular design shortens the replacement time of the flexible wiper to about 8 minutes, and the maintenance frequency is as low as once a month.

[0046] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, left, right, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. An elevator traction device that is easy to clean, characterized in that: include: A traction assembly, the traction assembly comprising a housing (1), a traction wheel (5) installed in the housing (1), and a worm assembly for driving the traction wheel (5) to rotate; The traction rope is installed on the traction wheel (5); the bottom of the box (1) is provided with a threading opening for installing the traction rope; a cleaning assembly, the cleaning assembly comprising a wiping assembly for cleaning the traction rope on the traction wheel (5), a scraper assembly for collecting residual dirt on the wiping assembly, and a lifting assembly for adjusting the vertical height of the wiping assembly; The wiping assembly comprises a U-shaped plate (10), an abutment roller (11) mounted inside the U-shaped plate (10), and a flexible wiping member arranged on the abutment roller (11); an intermediate shaft of the abutment roller (11) is rotatably connected to the inner wall of the U-shaped plate (10), and the intermediate shaft of the abutment roller (11) is driven to rotate by a rotary motor (14); The scraper assembly comprises an abutment plate (12) abutting against the bottom of the abutment roller (11), and a collection box slidably connected to a sliding groove opened on the U-shaped plate (10); the bottom of the abutment plate (12) is fixedly connected to the top of the U-shaped plate (10), and the collection box is located below the abutment roller (11).

2. The elevator traction device that is easy to clean according to claim 1, characterized in that: A movable groove is provided at the bottom of the inner wall of the box body (1), and a lifting assembly is slidably connected inside the movable groove; the lifting assembly comprises a movable groove plate (6) slidably arranged inside the movable groove, a screw assembly rotatably connected to the inner wall of the movable groove plate (6), a handwheel fixedly connected to the end of the screw assembly, a threaded block (8) threadedly connected to the screw assembly, and a connecting rod (9) rotatably connected to the top of the threaded block (8); one end of the connecting rod (9) is rotatably connected to the bottom of the U-shaped plate (10).

3. The elevator traction device that is easy to clean according to claim 2, characterized in that: The screw rod assembly is a bidirectional screw rod (7), and two thread blocks (8) are provided, which are respectively screwed on the forward and reverse threads of the bidirectional screw rod (7).

4. The elevator traction device that is easy to clean according to claim 2, characterized in that: A guide groove is provided on the side of the inner wall of the movable groove, and a clamping block is fixedly connected to the surface of the movable groove plate (6), and the clamping block is slidably arranged inside the guide groove.

5. The elevator traction device that is easy to clean according to claim 2, characterized in that: The side of the movable slot plate (6) is fixedly connected with a mounting plate, and the bottom of the box body (1) and the mounting plate are both provided with threaded openings, and the internal threads of the threaded openings are connected with bolts.

6. The easy-to-clean elevator traction device according to claim 1, characterized in that: The box body (1) is provided with an opening door.

7. The easy-to-clean elevator traction device according to claim 1, characterized in that: The worm assembly comprises a drive motor (13) installed inside the housing (1), a worm (2) fixedly connected to the output end of the drive motor (13) and rotatably connected to the inner wall of the housing (1), a worm wheel (3) arranged on the surface of the worm (2), and a long rod (4) fixedly passing through and connected to the worm wheel (3); the traction wheel (5) is sleeved on the outside of the long rod (4).

8. The easy-to-clean elevator traction device according to claim 7, characterized in that: The bottoms of the driving motor (13) and the rotating motor (14) are both provided with mounting blocks, and the surfaces of the two mounting blocks are respectively fixedly connected to the bottom of the inner wall of the box body (1) and the back of the U-shaped plate (10).

9. The easy-to-clean elevator traction device according to claim 2, characterized in that: The top of the threaded block (8) is fixedly connected to a mounting plate, a support rod is fixedly connected to the mounting plate, one end of the connecting rod (9) is sleeved outside the support rod, the bottom of the U-shaped plate (10) is fixedly connected to a disc, a short rod is fixedly provided on the disc, and one end of the connecting rod (9) is sleeved outside the short rod.

10. The easy-to-clean elevator traction device according to claim 1, characterized in that: The flexible wiper is a sponge.

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