Detection device for transverse brush lifting system of car washer
By adopting a mechanical structure that combines a swing arm and rollers in the car wash machine, the problem of traditional tension sensors being susceptible to interference in high humidity environments is solved. This achieves synchronous belt detection with a simple structure, low cost, and fast response, ensuring the safety and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHIYING ROBOT TECH (ZHEJIANG) CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional car wash machine detection methods rely on tension sensors, which are complex and costly. They are also susceptible to interference in high humidity and foamy environments, making it difficult to trigger shutdown protection in a timely manner.
The mechanical structure employs a combination of a swing arm and rollers. When the timing belt breaks, the weight of the rollers drives the swing arm to rotate, triggering the detection sensor to achieve automatic shutdown protection, thus avoiding dependence on an additional power source.
The device structure has been simplified, the cost has been reduced, and the stability and response speed of the detection have been improved. It can detect synchronous belt abnormalities in a timely manner and cut off the system operation.
Smart Images

Figure CN224212301U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of car wash machine technology, and specifically relates to a detection device for the horizontal brush lifting system of a car wash machine. Background Technology
[0002] An automatic car wash machine is a device that cleans vehicles using automated equipment. It typically achieves processes such as rinsing, brushing, waxing, and drying without human intervention. Currently, automatic car wash machines generally use a horizontal brush lifting system to clean the car body with brush bristles. The timing belt is the key transmission component that drives the horizontal brush. During long-term use, the timing belt may break due to wear and aging. Once the timing belt fails, the horizontal brush may lose control, causing equipment damage and vehicle damage.
[0003] Traditional detection methods typically rely on tension sensors to monitor the tension of the synchronous belt. However, tension sensors are complex in structure, expensive, and easily interfered with in high-humidity, foamy car wash environments, making it impossible to trigger the shutdown protection in time. To solve these problems, we provide a detection device for the horizontal brush lifting system of a car wash machine. Utility Model Content
[0004] The purpose of this utility model is to provide a detection device for the horizontal brush lifting system of a car wash machine, so as to solve the problem that the traditional detection method mentioned in the background art usually relies on tension sensors to monitor the tension of the synchronous belt. However, tension sensors have a complex structure, high cost, and are easily interfered with in the high humidity and foamy car wash environment, and cannot trigger the shutdown protection in time.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a detection device for a car wash machine horizontal brush lifting system, comprising a housing, a mounting bracket, and a winding mechanism, wherein a detection bracket is fixedly connected to the top of the mounting bracket, a fixed shaft is fixedly connected inside the detection bracket, a swing arm is rotatably connected to the surface of the fixed shaft, a roller is rotatably connected to one end of the swing arm, a limit bolt is fixedly connected inside the detection bracket, a detection sensor is sleeved on the back of the detection bracket, a nut is threaded onto the surface of the detection sensor, and a plate is fixedly connected to one end of the swing arm.
[0006] Preferably, the winding mechanism includes a drive motor, the inner side of the mounting bracket is fixedly connected to the drive motor, the output end of the drive motor is fixedly connected to a winding wheel, the surface of the winding wheel is provided with a timing belt, and one end of the timing belt is fixedly connected to the winding wheel.
[0007] Preferably, a wheel frame is fixedly connected to the top of the housing, and a driven wheel is rotatably connected to the inner side of the wheel frame.
[0008] Preferably, mounting plates are fixedly connected to both sides of the mounting bracket, and the inner side of the housing is fixedly connected to the mounting plates.
[0009] This utility model has the following beneficial effects:
[0010] This device utilizes a clever combination of a swing arm and rollers. When the timing belt breaks, the weight of the rollers drives the swing arm to rotate around a fixed axis. Simultaneously, the other end of the swing arm causes the plate to deflect synchronously to the sensing area of the detection sensor, triggering the emergency stop function of the car wash machine. The device has a simple and reliable structure, achieving automatic triggering using its own weight without the need for an additional power source, effectively reducing manufacturing costs and maintenance difficulty. Its fast response speed allows it to detect and cut off system operation instantly in the event of a timing belt malfunction, significantly improving the stability of the detection. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0012] Figure 2 This is a three-dimensional schematic diagram of a partial structure of this utility model;
[0013] Figure 3 This is a three-dimensional schematic diagram of a partial structure of this utility model.
[0014] Reference numerals in the attached drawings: 1. Housing; 2. Mounting bracket; 3. Winding mechanism; 31. Drive motor; 32. Winding reel; 33. Synchronous belt; 4. Detection bracket; 5. Fixed shaft; 6. Swing arm; 7. Roller; 8. Limit bolt; 9. Detection sensor; 10. Nut; 11. Plate; 12. Wheel frame; 13. Driven wheel; 14. Mounting plate. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings.
[0016] Example 1:
[0017] refer to Figure 1-3 A detection device for a car wash machine horizontal brush lifting system includes a housing 1, a mounting bracket 2, and a winding mechanism 3. A detection bracket 4 is fixedly connected to the top of the mounting bracket 2. A fixed shaft 5 is fixedly connected inside the detection bracket 4. A swing arm 6 is rotatably connected to the surface of the fixed shaft 5. A roller 7 is rotatably connected to one end of the swing arm 6. A limit bolt 8 is fixedly connected inside the detection bracket 4. A detection sensor 9 is sleeved on the back of the detection bracket 4. A nut 10 is threadedly connected to the surface of the detection sensor 9. A plate 11 is fixedly connected to one end of the swing arm 6.
[0018] Specifically, there are two swing arms 6. One end of the swing arm 6 is rotatably connected to the roller 7 through the first pin. By setting the limit bolt 8, the rotation angle of the swing arm 6 can be controlled. The detection bracket 4 has a slot that matches the detection sensor 9. There are two nuts 10 on the surface of the detection sensor 9 for installing and fixing the detection sensor 9. By setting the plate 11, the end face of one end of the swing arm 6 can be effectively enlarged, and the detection sensor 9 can be used for detection.
[0019] refer to Figure 2 The winding mechanism 3 includes a drive motor 31. The inner side of the mounting bracket 2 is fixedly connected to the drive motor 31. The output end of the drive motor 31 is fixedly connected to a winding wheel 32. A synchronous belt 33 is provided on the surface of the winding wheel 32. One end of the synchronous belt 33 is fixedly connected to the winding wheel 32. Two synchronous belts 33 are wound on the surface of the winding wheel 32. The two synchronous belts 33 are fixedly connected to the sliding components at both ends of the car wash machine's horizontal brush. When the drive motor 31 drives the winding wheel 32 to rotate forward, the winding wheel 32 winds up the synchronous belt 33. At the same time, the synchronous belt 33 drives the car wash machine's horizontal brush to move upward. When the drive motor 31 drives the winding wheel 32 to rotate in reverse, the winding wheel 32 unwinds the synchronous belt 33, causing the car wash machine's horizontal brush to move downward. The roller 7 abuts against the synchronous belt 33. The movement of the synchronous belt 33 will drive the roller 7 to rotate.
[0020] refer to Figure 2 A wheel frame 12 is fixedly connected to the top of the housing 1. A driven wheel 13 is rotatably connected to the inner side of the wheel frame 12. The inside of the wheel frame 12 is rotatably connected to the driven wheel 13 through a second pin. By setting the driven wheel 13, the synchronous belt 33 can be moved.
[0021] refer to Figure 1 Mounting bracket 2 is fixedly connected to mounting plates 14 on both sides, and the inner side of the housing 1 is fixedly connected to the mounting plates 14. By setting the mounting plates 14, the mounting bracket 2 and the housing 1 can be effectively installed and connected.
[0022] Brief description of the usage process: When the timing belt 33 is disconnected, the swing arm 6 will rotate on the surface of the fixed shaft 5 due to the weight of the roller 7. Then, the end of the swing arm 6 with the roller 7 will sink, so that the other end of the swing arm 6 is limited by the limit bolt 8. At the same time, the swing arm 6 drives the plate 11 to rotate into the detection range of the detection sensor 9, so that the detection sensor 9 controls the car wash machine to stop in an emergency. This can effectively detect the disconnection of the timing belt 33 and significantly improve the stability of the detection.
[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A detection device for a car wash machine horizontal brush lifting system, comprising a housing (1), a mounting bracket (2), and a winding mechanism (3), characterized in that: The top of the mounting bracket (2) is fixedly connected to a detection bracket (4), the inside of the detection bracket (4) is fixedly connected to a fixed shaft (5), the surface of the fixed shaft (5) is rotatably connected to a swing arm (6), one end of the swing arm (6) is rotatably connected to a roller (7), the inside of the detection bracket (4) is fixedly connected to a limit bolt (8), the back of the detection bracket (4) is fitted with a detection sensor (9), the surface of the detection sensor (9) is threaded with a nut (10), and one end of the swing arm (6) is fixedly connected to a plate (11).
2. The detection device for the horizontal brush lifting system of a car wash machine according to claim 1, characterized in that: The winding mechanism (3) includes a drive motor (31), the inner side of the mounting bracket (2) is fixedly connected to the drive motor (31), the output end of the drive motor (31) is fixedly connected to a winding wheel (32), the surface of the winding wheel (32) is provided with a synchronous belt (33), and one end of the synchronous belt (33) is fixedly connected to the winding wheel (32).
3. The detection device for the horizontal brush lifting system of a car wash machine according to claim 1, characterized in that: The top of the box (1) is fixedly connected to a wheel frame (12), and the inner side of the wheel frame (12) is rotatably connected to a driven wheel (13).
4. The detection device for the horizontal brush lifting system of a car wash machine according to claim 1, characterized in that: Mounting plates (14) are fixedly connected to both sides of the mounting bracket (2), and the inner side of the box (1) is fixedly connected to the mounting plates (14).