An elevator car door cleaning device

Abstract

An elevator car door cleaning device includes: a cleaning tank, a support frame, and a positioning assembly. The support frame is located within the cleaning tank, and its bottom has multiple support rods along its length to support the car door. The positioning assembly includes two side plates located at both ends of the support frame's length and movable along its length and vertically. Multiple U-shaped plates are located on the upper and lower sides of each side plate along its length, with the openings of the U-shaped plates facing the center of the support frame. Each U-shaped plate contains a limiting wheel with its axis parallel to the width of the support frame and rotatably mounted on a moving block. The moving block is connected to one end of a top rod, which passes through the U-shaped plate, with its other end passing through a bracket. The bracket is installed outside the U-shaped plate. The top rod has a retaining ring and a second spring fitted onto it. The two ends of the second spring abut against the bracket and the retaining ring, respectively, and are always in a compressed state. This is used to limit the position of the car door end. While stably clamping the car door, this ensures comprehensive cleaning of the car door, guaranteeing a good cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of elevator manufacturing technology, and in particular to an elevator car door cleaning device. Background Technology

[0002] During the manufacturing process of elevator car doors, metal shavings, oil stains, or oxide layers often remain on their surfaces. If subsequent processes such as painting or electroplating are required, the presence of these surface impurities can affect the adhesion of the coating, easily leading to coating peeling. Therefore, it is necessary to clean the car doors. In existing technologies, elevator car doors are typically cleaned by simply stacking them on a support frame, which is then placed in a cleaning tank and cleaned using ultrasonic waves. However, there are blind spots in the cleaning process, such as the area where the car door contacts the support frame. Furthermore, laying the car door flat can cause impurities to accumulate on the surface, making it difficult to completely remove oil stains and other impurities. This affects subsequent painting and other operations, potentially leading to a decline in product quality. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned prior art, this application provides an elevator car door cleaning device that can stably clamp the car door while ensuring all-round cleaning of the car door, thus guaranteeing the cleaning effect and having strong practicality.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] An elevator car door cleaning device includes: a cleaning tank, a support frame, and a positioning component.

[0006] The support frame is installed in the cleaning tank. The bottom of the support frame has multiple spaced support rods along its length, and the length of the support rods is parallel to the width of the support frame, which are used to support the car door. The positioning component includes two side plates respectively located at both ends of the support frame along its length and moving along its length and vertical direction. The upper and lower sides of the side plates are provided with multiple U-shaped plates along their length. The openings of the U-shaped plates face the center of the support frame, and the inside is provided with limiting wheels that move along the length of the support frame. The axis of the limiting wheels is parallel to the width of the support frame, which are used to limit the end of the car door.

[0007] Furthermore, both ends of the support rod are fitted onto the guide rod, and the ends are provided with connecting blocks. The guide rod is installed on the support frame, and the top of the connecting block is rotatably connected to a connecting rod. The connecting rods are in pairs, and the upper ends of the two connecting rods in the same pair are rotatably connected to a slider. The slider is fitted onto a vertically arranged vertical rod, which is installed on the support frame. A first spring is fitted onto the vertical rod, and the two ends of the first spring abut against the support frame and the slider respectively, and are always in a compressed state.

[0008] Furthermore, two stops are provided between the two connecting rods in the same group. The stops are installed on the support frame, and the connecting block abuts against the stops when in use.

[0009] Furthermore, the limiting wheel is rotatably mounted on the movable block, the movable block is connected to one end of the top rod, the top rod passes through the U-shaped plate and the other end passes through the bracket, the bracket is installed on the outside of the U-shaped plate, the top rod is provided with a retaining ring and a second spring is sleeved on it, the two ends of the second spring abut against the bracket and the retaining ring respectively, and are always in a compressed state.

[0010] Furthermore, one end of the side plate is fitted onto the screw and locked with a nut, while the other end is fitted onto the slide rod. Both the screw and the slide rod are installed on the lifting frame, which is slidably fitted onto the outside of the support frame and moves vertically.

[0011] Furthermore, multiple pressure bars are arranged at intervals on both sides of the lifting frame along its length, and the lower end of the pressure bar always abuts against the slider.

[0012] The advantages of this utility model are as follows: the support rod supports the car door, and the limiting wheel limits both ends of the car door, ensuring stable load-bearing of the car door; the support rod can move along the length of the support frame, and the limiting wheel can move in the vertical direction, thereby changing the contact point with the car door, making the car door cleaner and ensuring the quality of subsequent processes; the side plates can move towards each other, thereby adapting to car doors of different sizes. Attached Figure Description

[0013] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this application.

[0015] Figure 2 This is a three-dimensional schematic diagram of the support frame according to an embodiment of this application.

[0016] Figure 3 This is a three-dimensional schematic diagram of the positioning component according to an embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0018] like Figures 1-3 As shown in the figure, this example provides an elevator car door cleaning device, including: a cleaning tank 100, a support frame 200, and a positioning component 300.

[0019] The cleaning tank 100 contains cleaning fluid and uses ultrasonic cleaning. A support frame 200 is located inside the cleaning tank 100. The bottom of the support frame 200 has multiple spaced support rods 201 arranged along its length. The length of the support rods 201 is parallel to the width of the support frame 200 and is used to support the car door. When the car door is placed in the support frame 200, it is placed vertically and its length is parallel to the length of the support frame 200. The positioning component 300 includes two side plates 301, which are respectively located at both ends of the support frame 200 and are movable along its length and vertical direction. The upper and lower sides of the side plates 301 are provided with multiple U-shaped plates 302 along their length. The openings of the U-shaped plates 302 face the center of the support frame 200 and are provided with limiting wheels 303 that are movable along the length of the support frame 200. The axis of the limiting wheels 303 is parallel to the width of the support frame 200 and is used to limit the end of the car door.

[0020] Specifically, both ends of the support rod 201 are sleeved on the guide rod 202, and the ends are provided with connecting blocks 203. The guide rod 202 is installed on the support frame 200. The top of the connecting block 203 is rotatably connected to the connecting rod 204. The connecting rods 204 are in pairs, and the upper ends of the two connecting rods 204 in the same pair are rotatably connected to a slider 205. The slider 205 is sleeved on the vertically arranged vertical rod 206. The vertical rod 206 is installed on the support frame 200. A first spring 207 is sleeved on the vertical rod 206, and the two ends of the first spring 207 respectively abut against... The support rods 201 are connected to the support frame 200 and the slider 205 and are always in a compressed state. Under the action of the first spring 207, the two support rods 201 always tend to move towards each other. When cleaning the car door, a downward force is applied to the slider 205, causing the slider 205 to move downward. Under the action of the connecting rod 204, the two support rods 201 of the same set will move away from each other, thereby changing the contact point between the connecting rod 201 and the car door, so that the car door can be thoroughly cleaned and the possibility of impurities, oil stains and other residues remaining on the car door is reduced.

[0021] Specifically, two stops 208 are provided between the two connecting rods 204 in the same group. The stops 208 are installed on the support frame 200. When the slider 205 is at the highest point of its stroke, the connecting block 203 abuts against the stops 208 to prevent the slider 205 from dislodging from the vertical rod 206 under the action of the first spring 207.

[0022] Specifically, the limiting wheel 303 is rotatably mounted on the movable block 304. The movable block 304 is connected to one end of the push rod 305. The push rod 305 passes through the U-shaped plate 302, and its other end passes through the bracket 306. The bracket 306 is installed on the outside of the U-shaped plate 302. The push rod 305 is provided with a retaining ring 307 and a second spring 308 is sleeved on it. The two ends of the second spring 308 abut against the bracket 306 and the retaining ring 307 respectively, and are always in a compressed state. Under the action of the second spring 308, the limiting wheel 303 is rotated and mounted on the movable block 304. The positioning wheel 303 always tends to move toward the center of the support frame 200. During the process of placing the car door in the support frame 200, both ends of the car door will contact the positioning wheel 303, forcing the positioning wheel 303 to move. The second spring 308 is also further compressed until the bottom of the car door contacts the support rod 201, thus bearing the load of the car door. Under the action of the second spring 308, the positioning wheel 303 has a movement margin, which can not only hold the car door firmly, but also adapt to car doors of different sizes.

[0023] Specifically, one end of the side plate 301 is fitted onto the screw 309 and locked with a nut. Loosening the nut allows the side plate 301 to move, thus adapting to different sizes of car doors. The other end of the side plate 301 is fitted onto the slide rod 310 to provide guidance and support for the movement of the side plate 301. Both the screw 309 and the slide rod 310 are mounted on the lifting frame 311. The lifting frame 311 is slidably fitted onto the outside of the support frame 200 and is set to move vertically. For example, the lifting frame 311 can be connected to the moving end of a vertical lifting mechanism, which can be mounted on the cleaning tank 100. Moving the lifting frame 311 downwards changes the contact position between the limit wheel 303 and both ends of the car door, thus allowing the car door to be cleaned from all directions.

[0024] Specifically, both sides of the lifting frame 311 are provided with multiple spaced pressure rods 312 along its length. The lower end of the pressure rod 312 always abuts against the slider 205. During the downward movement of the lifting frame 311, the pressure rod 312 will press the slider 205 downward, thereby realizing the movement of the support rod 201 simultaneously.

[0025] Since the above are merely preferred embodiments of this utility model and are not intended to limit this utility model, it is obvious that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An elevator car door cleaning device, characterized in that, include: Cleaning tank (100); A support frame (200) is provided inside the cleaning pool (100). The bottom of the support frame (200) is provided with a plurality of spaced support rods (201) along its length direction. The length direction of the support rods (201) is parallel to the width direction of the support frame (200) and is used to support the car door. The positioning component (300) includes two side plates (301) respectively located at both ends of the support frame (200) along its length and vertical direction. Each side plate (301) has multiple U-shaped plates (302) on its upper and lower sides along its length. The opening of each U-shaped plate (302) faces the center of the support frame (200) and has a limiting wheel (303) inside that moves along the length of the support frame (200). The axis of the limiting wheel (303) is parallel to the width direction of the support frame (200) and is used to limit the end of the car door.

2. The elevator car door cleaning device according to claim 1, characterized in that, Both ends of the support rod (201) are sleeved on the guide rod (202), and the end is provided with a connecting block (203). The guide rod (202) is installed on the support frame (200). The top of the connecting block (203) is rotatably connected to a connecting rod (204). The connecting rods (204) are in pairs, and the upper ends of the two connecting rods (204) in the same group are rotatably connected to a slider (205). The slider (205) is sleeved on a vertically arranged vertical rod (206). The vertical rod (206) is installed on the support frame (200). A first spring (207) is sleeved on the vertical rod (206). The two ends of the first spring (207) abut against the support frame (200) and the slider (205) respectively, and are always in a compressed state.

3. The elevator car door cleaning device according to claim 2, characterized in that, Two stops (208) are provided between the two connecting rods (204) in the same group. The stops (208) are installed on the support frame (200). When in use, the connecting block (203) abuts against the stops (208).

4. The elevator car door cleaning device according to claim 1, characterized in that, The limiting wheel (303) is rotatably mounted on the moving block (304). The moving block (304) is connected to one end of the top rod (305). The top rod (305) passes through the U-shaped plate (302) and the other end passes through the bracket (306). The bracket (306) is installed on the outside of the U-shaped plate (302). The top rod (305) is provided with a retaining ring (307) and a second spring (308) is sleeved on it. The two ends of the second spring (308) abut against the bracket (306) and the retaining ring (307) respectively, and are always in a compressed state.

5. The elevator car door cleaning device according to claim 2, characterized in that, One end of the side plate (301) is sleeved on the screw (309) and locked with a nut, and the other end is sleeved on the slide rod (310). The screw (309) and the slide rod (310) are both installed on the lifting frame (311). The lifting frame (311) is slidably fitted on the outside of the support frame (200) and is moved in the vertical direction.

6. The elevator car door cleaning device according to claim 5, characterized in that, The lifting frame (311) has multiple spaced pressure rods (312) on both sides along its length, and the lower end of the pressure rod (312) always abuts against the slider (205).

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