Hair ball trimmer and protection switch thereof

By employing a simple spring-loaded design to disconnect the circuit of the lint remover, the safety hazard during lint removal is resolved, thus improving both safety and cost-effectiveness.

CN223766580UActive Publication Date: 2026-01-06YUELI GROUP CO LTD
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Patent Information

Application Number
CN202520679261.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-01-06
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing lint removers remain operational even when the blade cover or lint compartment falls off, posing a safety hazard. Furthermore, traditional protective switches are complex and costly.

Method used

The design employs a protective switch with a first and a second spring. The first and second switches are connected to the lint compartment and the cutter head cover, respectively, to ensure that the circuit is disconnected when the lint falls off. Only two springs are needed to reduce costs and improve safety.

Benefits of technology

The circuit is disconnected when the lint remover falls, preventing injury to the user. The structure is simple and low-cost, improving safety during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a protection switch and a lint trimmer, comprising a first elastic sheet, a second elastic sheet, an elastic sheet support, a first switch and a second switch, the first elastic sheet and the second elastic sheet are respectively arranged on the elastic sheet support, the first switch abuts against the first elastic sheet to make the first elastic sheet bend towards the direction of the second elastic sheet, and the second switch abuts against the second elastic sheet to make the second elastic sheet bend towards the direction of the second elastic sheet. The second switch abuts against the second elastic piece, so that the second elastic piece is bent towards the first elastic piece, and the first elastic piece and the second elastic piece make contact with each other under the action of the first switch and the second switch. Compared with a traditional lint trimmer using a protection switch with four elastic pieces, the lint trimmer only needs two elastic pieces, the cost is reduced, and the structure is simpler.
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Description

Technical Field

[0001] This utility model relates to the field of fabric processing tools, specifically to a lint remover and its protective switch. Background Technology

[0002] Due to the material of some everyday clothing, pilling easily occurs on the surface after frequent friction, affecting the appearance of the clothing and the wearing experience. Pilling removers are usually used to remove pilling, which removes the original fuzz of the clothing without damaging it. Therefore, pilling removers are very popular among consumers.

[0003] Lint removers are common household appliances used to remove lint from clothing and fabrics. They typically consist of a rotating blade and a protective mesh. As the blade rotates, it cuts away the protruding fabric, restoring smoothness. While these electronic devices are convenient, safety considerations must be taken into account during use. For example, if the device is dropped and the blade cap or lint trap detaches while the device itself remains operational, it poses a significant safety hazard to the user. Utility Model Content

[0004] To solve the above-mentioned technical problems, one of the objectives of this utility model is to provide a protective switch that can disconnect the circuit when the blade cover or lint compartment of the lint remover falls off, thereby improving the safety of using the lint remover.

[0005] The second objective of this invention is to provide a lint remover that includes the aforementioned protective switch.

[0006] To achieve the aforementioned primary objective, the technical solution of this utility model is as follows:

[0007] A protective switch includes a first spring, a second spring, a spring support, a first switch, and a second switch. The first spring and the second spring are respectively disposed on the spring support. The first switch abuts against the first spring, causing the first spring to bend toward the second spring. The second switch abuts against the second spring, causing the second spring to bend toward the first spring. The first spring and the second spring are in contact with each other under the action of the first switch and the second switch, respectively.

[0008] Preferably, it further includes a partition, the middle part of the first switch is hinged to the partition, one end of the first switch is provided with a first protrusion, the first protrusion abuts against the top of the first spring, and the other end of the first switch is provided with a second protrusion.

[0009] Preferably, a rotating shaft is provided in the middle of the first switch, and a rotating hole is provided on the partition plate, with the rotating shaft cooperating with the rotating hole.

[0010] Preferably, the second switch includes an interconnected rod and a head, the head resting against the underside of the second spring.

[0011] To achieve the second objective mentioned above, this utility model provides a lint remover, comprising a rear cover, a motor, a motor frame, a blade cover, a circuit board, a lint chamber, and the aforementioned protective switch. The motor is electrically connected to the circuit board, the first spring contact is electrically connected to the circuit board, and the second spring contact is electrically connected to the motor. The lint chamber rests against the first switch, and the blade cover rests against the second switch. The motor is disposed within the motor frame, the spring contact support is disposed within the motor frame, the blade cover is detachably connected to the motor frame, and the lint chamber is detachably connected to the rear cover.

[0012] Preferably, the lint bin includes a lint bin cover and a lint bin plate connected to each other, and the lint bin plate is provided with a third protrusion corresponding to the second protrusion, the third protrusion abutting against the second protrusion.

[0013] Preferably, the end of the cutter head cover that is connected to the motor frame abuts against the rod.

[0014] Preferably, a limiting tube is provided inside the motor frame, and the rod passes through the limiting tube and abuts against the cutter head cover.

[0015] Compared with the prior art, the lint remover and its protective switch of this application have the following advantages:

[0016] This invention employs a first and a second spring contact connected to the circuit board and motor, respectively. A first switch and a second switch are connected to the lint chamber and blade cover of the lint remover, respectively, so that the first switch and the second switch can be activated respectively when the lint chamber and blade cover are installed. The first switch bends the first spring contact downwards via a first protrusion, while the second switch moves upwards, bending the second spring contact. When the lint chamber and blade cover are properly installed in the lint remover, both spring contacts are bent simultaneously, and their closest ends can contact each other, thus connecting the lint remover's circuit and allowing the lint remover to operate normally. If the lint remover falls and the blade cover or lint chamber detaches, since only one switch spring contact is bent, it will not contact the other switch spring contact, thus disconnecting the lint remover's circuit and preventing injury to the user. Compared with existing technologies, this invention can disconnect the circuit when the lint remover's blade cover or lint chamber detaches, thereby improving the safety of using the lint remover.

[0017] Meanwhile, compared to traditional lint removers that use a four-spring protection switch, this invention only requires two springs, reducing costs and simplifying the structure. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a protective switch provided in an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the structure of the first switch provided in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second switch provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the structure of a lint remover provided in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the motor frame provided in an embodiment of the present utility model;

[0023] Figure 6 for Figure 5 A schematic diagram of the structure of the lint remover hidden behind the motor frame;

[0024] Figure 7 A complete structural schematic diagram of the lint remover provided by this utility model;

[0025] Figure 8 A schematic diagram of the structure of the lint trap provided by this utility model;

[0026] Figure 9 This is a structural schematic diagram of the motor frame from another perspective, provided for an embodiment of the present utility model. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings include: first spring 1, second spring 2, spring bracket 3, first switch 4, second switch 5, partition 6, first protrusion 7, second protrusion 8, rotating shaft 9, rotating hole 10, rod body 11, head 12, rear cover 13, motor 14, motor frame 15, cutter head cover 16, circuit board 17, lint ball compartment 18, lint compartment cover 19, lint compartment plate 20, third protrusion 21, and limiting tube 22.

[0029] As attached Figure 1-5 As shown in the figure, this embodiment illustrates a protective switch, including a first spring 1, a second spring 2, a spring support 3, a first switch 4, and a second switch 5. The first spring 1 and the second spring 2 are respectively disposed on the spring support 3. The first switch 4 abuts against the first spring 1, causing the first spring 1 to bend toward the second spring 2. The second switch 5 abuts against the second spring 2, causing the second spring 2 to bend toward the first spring 1. The first spring 1 and the second spring 2 are in contact with each other under the action of the first switch 4 and the second switch 5, respectively.

[0030] Specifically, there are two spring holders 3, with a first spring 1 and a second spring 2 respectively mounted on the two spring holders 3. The ends of the first spring 1 and the second spring 2 are spaced vertically apart. The first spring 1 is positioned above the second spring 2. A first switch 4 pushes the first spring 1 downwards, and a second switch 5 pushes the second spring 2 upwards, causing the first spring 1 and the second spring 2 to contact each other. When either the first switch 4 or the second switch 5 stops pushing the first spring 1 or the second spring 2, the first spring 1 and the second spring 2 are no longer in contact, and the circuit is broken.

[0031] The protective switch in this embodiment also includes a partition 6. The middle part of the first switch 4 is hinged to the partition 6. One end of the first switch 4 is provided with a first protrusion 7, which abuts against the top of the first spring piece 1. The other end of the first switch 4 is provided with a second protrusion 8.

[0032] The first switch 4 has a rotating shaft 9 in the middle and a rotating hole 10 on the partition 6. The first switch 4 is hinged to the partition 6 by rotating the rotating shaft 9 and the rotating hole 10. Specifically, when the second protrusion 8 of the first switch 4 is pushed up and down by an external force, the second protrusion 8 of the first switch 4 will push the first spring 1 downward.

[0033] The second switch 5 includes a rod 11 and a head 12 connected to each other, with the head 12 resting against the lower part of the second spring 2. The rod 11 of the second switch 5 is also subject to external force, which drives the head 12 to push the second spring 2 upward to contact the first spring 1.

[0034] As attached Figure 4-9 As shown in the figure, this embodiment also demonstrates a lint remover, including a rear cover 13, a motor 14, a motor frame 15, a blade cover 16, a circuit board 17, a lint chamber 18, and the aforementioned protective switch.

[0035] The motor 14 is electrically connected to the circuit board 17, the first spring 1 is electrically connected to the circuit board 17, and the second spring 2 is electrically connected to the motor 14. The lint collection 18 abuts against the first switch 4, and the cutter head cover 16 abuts against the second switch 5. The motor 14 is located inside the motor frame 15, the spring support 3 is located inside the motor frame 15, the cutter head cover 16 is detachably connected to the motor frame 15, and the lint collection 18 is detachably connected to the rear cover 13.

[0036] In this embodiment of the lint remover, the blade cover 16 is installed into the motor frame 15, and the lint chamber 18 is installed into the rear cover 13. The blade cover 16 and the lint chamber 18 respectively drive the second switch 5 and the first switch 4 to push the second spring 2 and the first spring 1, causing the first spring 1 and the second spring 2 to contact each other and achieve the purpose of connection. If the lint remover is accidentally dropped or improperly used, causing the blade cover 16 and the lint chamber 18 to detach, the first spring 1 and the second spring 2 will no longer be in contact, thereby breaking the circuit, stopping the motor 14 from working, and thus stopping the blade from rotating, to ensure the safety of the product.

[0037] The lint compartment 18 includes a lint compartment cover 19 and a lint compartment plate 20 connected to each other. The lint compartment plate 20 has a third protrusion 21 corresponding to the second protrusion 8, and the third protrusion 21 abuts against the second protrusion 8. After the lint compartment 18 is installed with the back cover 13, the third protrusion 21 of the lint compartment plate 20 pushes the second protrusion 8 upward, which in turn drives the first protrusion 7 to push the first spring piece 1 downward.

[0038] The end of the cutter head cover 16 connected to the motor frame 15 abuts against the rod 11. The cutter head cover 16 and the motor frame 15 are threaded together, with internal threads inside the motor frame 15 and external threads on the cutter head cover 16. When the cutter head cover 16 is screwed into the motor frame 15, the end of the cutter head cover 16 inside the motor frame 15 abuts against the rod 11 of the second switch 5, and the rod 11 pushes the head 12, thereby causing the second spring 2 to move upward and contact the first spring 1.

[0039] The motor frame 15 is equipped with a limit tube 22, through which the rod 11 passes and abuts against the cutter head cover 16. The limit tube 22 ensures that the second switch 5 maintains a straight line during movement, and provides support to the rod 11 to prevent it from shifting, thus ensuring the normal operation of the second switch 5.

[0040] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A protective switch, characterized by: The protection switch comprises a first elastic sheet (1), a second elastic sheet (2), an elastic sheet support (3), a first switch (4) and a second switch (5), the first elastic sheet (1) and the second elastic sheet (2) are arranged on the elastic sheet support (3) respectively, the first switch (4) is arranged on the first elastic sheet (1) and makes the first elastic sheet (1) bend towards the second elastic sheet (2), the second switch (5) is arranged on the second elastic sheet (2) and makes the second elastic sheet (2) bend towards the first elastic sheet (1), the first elastic sheet (1) and the second elastic sheet (2) are in contact with each other under the action of the first switch (4) and the second switch (5) respectively; the protection switch further comprises a partition plate (6), the middle part of the first switch (4) is hinged to the partition plate (6), one end of the first switch (4) is provided with a first protrusion (7), the first protrusion (7) is arranged above the first elastic sheet (1), the other end of the first switch (4) is provided with a second protrusion (8).

2. A protective switch according to claim 1, characterized in that: The middle part of the first switch (4) is provided with a rotating shaft (9), the partition plate (6) is provided with a rotating hole (10), and the rotating shaft (9) is matched with the rotating hole (10).

3. A protective switch according to claim 1, characterized in that: The second switch (5) comprises a rod body (11) and a head (12) connected with each other, and the head (12) is arranged below the second elastic sheet (2).

4. A pube trimmer characterized by: The protection switch comprises a rear cover (13), a motor (14), a motor frame (15), a cutter head cover (16), a circuit board (17), a ball storage (18) and the protection switch of any one of claims 1-3, the motor (14) is electrically connected with the circuit board (17), the first elastic sheet (1) is electrically connected with the circuit board (17), and the second elastic sheet (2) is electrically connected with the motor (14); the ball storage (18) is arranged on the first switch (4), and the cutter head cover (16) is arranged on the second switch (5); the motor (14) is arranged in the motor frame (15), the elastic sheet support (3) is arranged in the motor frame (15), the cutter head cover (16) is detachably connected with the motor frame (15), and the ball storage (18) is detachably connected with the rear cover (13).

5. A ball trimmer according to claim 4, wherein: The ball storage (18) comprises a ball storage cover (19) and a ball storage plate (20) connected with each other, the ball storage plate (20) is provided with a third protrusion (21) corresponding to the second protrusion (8), and the third protrusion (21) is arranged on the second protrusion (8).

6. A ball trimmer according to claim 5, wherein: One end of the cutter head cover (16) connected with the motor frame (15) is arranged on the rod body (11).

7. A ball trimmer according to claim 6, wherein: The motor frame (15) is provided with a limiting tube (22), and the rod body (11) passes through the limiting tube (22) and is arranged on the cutter head cover (16).