Anti-pinch dehairing movement mechanism

Abstract

The utility model relates to the technical field of hair cleaning devices, in particular to an anti-pinch dehairing movement mechanism which comprises a shell, a fan set is installed on one side in the shell, a filter screen is installed on the other side in the shell, a dehairing mechanism is arranged in the shell in a sliding connection mode, one side of the dehairing mechanism is open, and the other side of the dehairing mechanism is open. A scraping plate attached to the surface of the filter screen is arranged at the opening, a driving motor is installed on the side edge of the shell, and a first sensor set and a second sensor set are installed at the two ends of the shell respectively; the second sensor group is arranged at one end, close to the filter screen, of the shell; the first sensor group is arranged on one side of an air inlet of the fan unit. According to the utility model, different sensors can be used for detecting whether possible damage to the equipment exists around the equipment so as to protect the equipment. And meanwhile, automatic return can be carried out when the abnormal locked-rotor condition is detected, so that a blocked object is prevented from being in an extrusion state.

Description

Technical Field

[0001] This utility model relates to the technical field of hair cleaning devices, specifically a hair-shaving motion mechanism that prevents pinching. Background Technology

[0002] Currently, pet air purifiers typically use a moving mechanism to scrape and collect hair after it has adhered to the pre-filter. This hair collection principle makes the moving mechanism visible and accessible, which presents the following problems:

[0003] 1. Foreign objects may damage the mechanism during this movement process;

[0004] 2. If a human or animal extends into the structure, it may cause injury during the operation of the mechanism. Utility Model Content

[0005] The purpose of this invention is to provide an anti-pinch scraping motion mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A scraping mechanism with anti-pinch protection includes a housing. A fan unit is installed on one side of the housing, and a filter screen is installed on the other side of the housing. A scraping mechanism is slidably connected in the housing. One side of the scraping mechanism is open, and a scraper that fits against the surface of the filter screen is provided at the opening. A drive motor is installed on the side of the housing. A first sensor group and a second sensor group are respectively installed at both ends of the housing. The second sensor group is located at the end of the housing near the filter screen, and the first sensor group is located on the side of the fan unit's air inlet.

[0008] As a further embodiment of this invention, the outer shell is funnel-shaped.

[0009] As a further embodiment of this utility model, the scraper is made of hard material.

[0010] As a further embodiment of this invention, the scraper is a brush.

[0011] As a further embodiment of this utility model: a conveyor belt is connected to the output end of the drive motor, and the end of the scraping mechanism is fixedly connected to the conveyor belt.

[0012] As a further embodiment of this utility model: both the first sensor group and the second sensor group include one or more of the following: a photosensitive sensor, a temperature sensor, a microwave sensor, and an infrared sensor.

[0013] As a further embodiment of this invention, an inductor for detecting back electromotive force is provided on the control circuit of the drive motor.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: After the fan unit is started, it drives airflow from the filter side to the fan unit side within the casing. This design allows animal hair and other lint to be drawn into the casing through continuous airflow. After being filtered by the filter, the air is discharged cleanly, while the hair and lint are trapped on the filter surface, making cleaning efficient and convenient. In this embodiment, different sensors can detect potential hazards around the equipment, thus protecting it. Furthermore, in this embodiment, automatic reversal is possible in case of a stall, preventing the blocked object from being compressed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model when it is inverted.

[0017] In the diagram: 1-outer shell, 11-filter, 2-fan unit, 3-drive motor, 4-scraping mechanism, 5-first sensor group, 6-second sensor group. Detailed Implementation

[0018] Please see Figures 1-2 In this embodiment of the present invention, a hair-scraping mechanism with anti-pinch function includes a housing 1. A fan unit 2 is installed on one side of the housing 1, and a filter screen 11 is installed on the other side of the housing 1. After the fan unit 2 is started, the fan unit 2 drives the airflow to flow from the filter screen 11 side to the fan unit 2 side in the housing 1. With this arrangement, animal hair and other lint can be carried into the housing 1 by continuous airflow. After being filtered by the filter screen 11, the air is discharged cleanly, while the hair and lint can be trapped on the surface of the filter screen 11, making cleaning more efficient and convenient.

[0019] The outer casing 1 is generally funnel-shaped, with larger diameters at both ends and a smaller diameter in the middle that tapers inwards. This shape not only provides good stability when placed but also facilitates airflow and allows for the gathering and passage of air.

[0020] To address the issue of hair and lint filtered on the filter screen 11, a scraping mechanism 4 is slidably connected within the outer casing 1. The scraping mechanism 4 has an opening on one side, with a scraper at the opening that adheres to the surface of the filter screen 11. The scraper can be a hard material or a brush. The scraping mechanism 4 moves across the surface of the filter screen 11, scraping off and collecting the hair or lint adhering to it. A drive motor 3 is mounted on the side of the outer casing 1. A conveyor belt, such as a chain or belt, is connected to the output end of the drive motor 3 (one side of the conveyor belt is fitted around the output end of the drive motor 3, and the other side is fitted around a pulley rotatably connected to the side of the outer casing 1). The end of the scraping mechanism 4 is fixedly connected to the conveyor belt. Starting the drive motor 3 causes the conveyor belt to rotate, thereby driving the scraping mechanism 4 to reciprocate across the surface of the filter screen 11, thus cleaning the hair or lint from the filter screen 11.

[0021] Furthermore, a first sensor group 5 and a second sensor group 6 are respectively installed at both ends of the housing 1. The second sensor group 6 is located at the end of the housing 1 near the filter 11, and the first sensor group 5 is located on the side of the air inlet of the fan unit 2. The structures of the first sensor group 5 and the second sensor group 6 can be exactly the same or different. Both the first sensor group 5 and the second sensor group 6 can include one or more of the following: a photosensitive sensor, a temperature sensor, a microwave sensor, and an infrared sensor. Using a photosensitive sensor technology, the drive motor 3 can be activated only when the photosensitive sensor detects weak light, thus moving the scraping mechanism 4 and reducing the risk of injury to users. Using an infrared temperature sensing solution, the drive motor 3 will only be activated to move the scraping mechanism 4 when the temperature sensor detects the absence of living body temperature. Using a microwave sensing principle, the drive motor 3 will not be activated to move the scraping mechanism 4 if there are moving objects around the device, based on microwave sensor detection. Using an infrared light switch sensing solution, multiple infrared sensors can be set at various locations on the housing 1 as detection points; if any detection point detects an obstruction, the drive motor 3 will be prevented from activating to move the scraping mechanism 4. Furthermore, a back electromotive force sensor is installed on the control circuit of the drive motor 3 (the drive motor 3 is a servo motor, and this is the control circuit of the servo motor). This sensor is used to confirm whether the motor is stalled. Alternatively, a speed detection sensor can be installed on the drive motor 3 to detect whether the speed of the drive motor 3 is lower than the standard value, thereby confirming whether the motor is stalled. If stalling occurs, the drive motor 3 is started to move in reverse to avoid damage.

[0022] The entire device also includes a controller inside the outer casing 1. The controller is electrically connected to the first sensor group 5, the second sensor group 6, and the drive motor 3. Its control logic is as follows: the controller receives signals from the first sensor group 5 and the second sensor group 6, and determines whether to turn on the drive motor 3 based on the signals. The drive motor 3 is turned on according to the signals and drives the hair scraping mechanism 4 to move back and forth on the surface of the filter screen 11, thereby cleaning and collecting hair. During operation, if foreign objects cause blockage, a signal is transmitted to the controller, which controls the drive motor 3 to rotate in the opposite direction.

[0023] In this embodiment, different sensors can be used to detect potential hazards around the device, thus protecting it. Additionally, in this embodiment, automatic reversal can be initiated if a stall anomaly is detected, preventing the blocked object from being compressed.

Claims

1. A scraping mechanism with anti-pinch protection, comprising a housing, a fan unit installed on one side inside the housing, a filter screen installed on the other side inside the housing, and a scraping mechanism slidably connected within the housing, characterized in that, The scraping mechanism has an opening on one side, and a scraper that fits against the surface of the filter screen is provided at the opening. A drive motor is installed on the side of the housing, and a first sensor group and a second sensor group are respectively installed at both ends of the housing. The second sensor group is located on the end of the housing near the filter screen, and the first sensor group is located on the side of the air inlet of the fan unit.

2. The anti-pinch scraping motion mechanism according to claim 1, characterized in that, The outer shell is funnel-shaped.

3. The anti-pinch scraping motion mechanism according to claim 1, characterized in that, The scraper is made of hard board.

4. The anti-pinch scraping motion mechanism according to claim 1, characterized in that, The scraper is a brush.

5. A scraping motion mechanism for preventing pinching according to any one of claims 2-4, characterized in that, The output end of the drive motor is externally connected to a conveyor belt, and the end of the scraping mechanism is fixedly connected to the conveyor belt.

6. The anti-pinch scraping motion mechanism according to claim 1, characterized in that, Both the first sensor group and the second sensor group include one or more of the following: a photosensitive sensor, a temperature sensor, a microwave sensor, and an infrared sensor.

7. A scraping motion mechanism for preventing pinching according to claim 1 or 6, characterized in that, A sensor for detecting back electromotive force is installed on the control circuit of the drive motor.

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