Self-locking protection device

Abstract

The utility model discloses a self-locking protection device which comprises an air blower barrel, one end of the air blower barrel is fixedly connected with a handle, an installation piece is installed in the air blower barrel, an installation groove is formed in the middle of the installation piece, a self-locking buckle is correspondingly installed in the installation groove, a first spring is fixedly connected in the self-locking buckle, and a second spring is fixedly connected in the first spring. The self-locking buckle is correspondingly installed in the installation piece, the first spring, the elastic buckle clamp, the sliding block and the guide groove in the self-locking buckle can be correspondingly connected with a barb piece at the inner end of the filter screen in a clamped mode, and meanwhile after clamping of the filter screen is completed, the self-locking buckle can be clamped to the barb piece at the inner end of the filter screen. The limiting blocks at the two ends of the self-locking buckle are ejected outwards to be clamped with the limiting grooves in the mounting piece, the effect of one-pressing double-clamping is achieved, synchronous disassembly of the filter screen can be completed only by pressing the filter screen inwards again during disassembly, and the whole self-locking protection structure is time-saving and labor-saving in use and can be easily taken.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer filter installation structure, specifically a self-locking protective device. Background Technology

[0002] The filter in a hair dryer, as the name suggests, is a mesh-like material used to filter and prevent impurities from entering the machine during the blowing process. Hair dryer filters are usually located near the heat dissipation vents to block hair, dust, and other impurities, preventing clogging, ensuring stable airflow, and guaranteeing the hair dryer operates efficiently and safely. Furthermore, in some hair dryers, the filter also prevents motor deformation, extending the hair dryer's lifespan.

[0003] In existing technologies, a magnetic structure is often used to install the filter at the air outlet of the hair dryer. The magnetic force of the magnetic filter may affect the ventilation effect of the air outlet, resulting in poor ventilation or increased noise. Secondly, the magnetic self-locking structure is expensive, and the entire self-locking structure is fixedly installed inside the hair dryer, making it difficult to disassemble when damaged, and repairs are time-consuming and laborious. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking protective device to solve the problem that the magnetic force of the magnetic filter in the prior art may affect the ventilation effect of the air outlet and make it difficult to disassemble and repair later.

[0005] To achieve the above objectives, a self-locking protective device is provided, including a hair dryer barrel, one end of which is fixedly connected to a handle, an installation component is installed inside the hair dryer barrel, an installation groove is provided in the middle of the installation component, a self-locking buckle is correspondingly installed inside the installation groove, and a spring is fixedly connected inside the self-locking buckle.

[0006] The other end of the spring is fixedly connected to a pressing block, the other end of the pressing block is fixedly connected to a connecting block, and the other end of the connecting block is fixedly connected to two elastic clips, which are disposed through one end of the self-locking buckle. A barb is correspondingly engaged inside the elastic clip, and a filter screen is fixedly connected to the other end of the barb.

[0007] According to the self-locking protective device, a rotating rod is rotatably connected to the pressing block, and a slider is provided at the end of the rotating rod.

[0008] According to the self-locking protective device, a guide groove is provided on the outer side of the self-locking buckle, and the slider is slidably connected inside the guide groove.

[0009] According to the self-locking protective device, springs are fixedly connected to both ends of the inner side of the self-locking buckle, and a limit block is fixedly connected to the other end of the spring, with the limit block passing through both ends of the self-locking buckle.

[0010] According to the self-locking protective device, the two ends of the mounting groove are provided with limit grooves, and the limit block corresponds to the limit groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. This patent features a self-locking buckle installed inside the mounting component. The spring, elastic clip, slider, and guide groove inside the self-locking buckle can engage with the barb on the inner end of the filter screen. After the filter screen is engaged, the limiting blocks at both ends of the self-locking buckle pop out and engage with the limiting groove inside the mounting component, achieving a double-locking effect with one press. Furthermore, during disassembly, it is only necessary to press the filter screen inward again to complete its simultaneous disassembly. The entire self-locking protective structure is time-saving, labor-saving, and easy to remove.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the mounting components of a self-locking protective device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the filter installation of a self-locking protective device according to the present invention;

[0017] Figure 3 This is a cross-sectional view of a self-locking protective device according to the present invention;

[0018] Figure 4 This is a schematic diagram of the locking structure of a self-locking protective device according to the present invention;

[0019] Figure 5 This is a schematic diagram of the opening and closing structure of a self-locking protective device according to the present invention.

[0020] In the diagram: 1. Handle; 2. Hair dryer barrel; 3. Mounting component; 4. Self-locking buckle; 5. Filter screen; 6. Barrel; 7. Elastic clip; 8. Rotating rod; 9. Slider; 10. Spring 1; 11. Mounting groove; 12. Limiting groove; 13. Spring 2; 14. Limiting block; 15. Connecting block; 16. Pressing block; 17. Guide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a self-locking protective device, including a hair dryer barrel 2, a handle 1 fixedly connected to one end of the hair dryer barrel 2, an installation part 3 installed inside the hair dryer barrel 2, an installation groove 11 opened in the middle of the installation part 3, a self-locking buckle 4 correspondingly installed inside the installation groove 11, and a spring 10 fixedly connected inside the self-locking buckle 4.

[0023] The other end of spring 10 is fixedly connected to a pressing block 16, the other end of pressing block 16 is fixedly connected to a connecting block 15, and the other end of connecting block 15 is fixedly connected to two elastic clips 7. The elastic clips 7 are inserted through one end of the self-locking buckle 4. A barb 6 is correspondingly engaged inside the elastic clip 7. A filter screen 5 is fixedly connected to the other end of the barb 6. A protrusion is provided at the end of the elastic clip 7. The protrusion can better cooperate with the barb 6 to ensure the stability during subsequent engagement. When the elastic clip 7 inside the filter screen 5 is aligned with the opening position of the self-locking buckle 4, the barb 6 is pressed inward. At this time, the elastic clip 7 and the barb 6 are squeezed for the first time. The pressing block 16 moves along a predetermined trajectory into the self-locking buckle 4 to the first position (e.g., Figure 4 (As shown) and stays in that position, the elastic clip 7 retracts into the self-locking buckle 4 and stays inside the self-locking buckle 4. Due to the restriction of the self-locking buckle 4, the two elastic clips 7 are close to each other and cannot swing freely, so that the barb 6 and the protrusion at the end of the elastic clip 7 are tightly fastened together, so that the filter screen 5 is in the locked state. When the filter screen 5 is pressed again, the elastic clip 7 and the barb 6 are squeezed a second time, and the pressing block 16 moves along the predetermined trajectory into the self-locking buckle 4 to the second position and stays in that position (as shown). Figure 5 As shown), the elastic clip 7 extends out of the self-locking clip 4. At this time, the elastic clip 7 is no longer restricted by the self-locking clip 4 and springs open to both sides, allowing the barb 6 to be released and disengaged. It is very simple and convenient.

[0024] A rotating rod 8 is rotatably connected to the pressing block 16. A slider 9 is provided at the end of the rotating rod 8. A guide groove 17 is provided on the outer side of the self-locking buckle 4. The slider 9 is slidably connected inside the guide groove 17. Springs 13 are fixedly connected to both ends of the inner side of the self-locking buckle 4. Limiting blocks 14 are fixedly connected to the other end of the springs 13. The limiting blocks 14 are provided through both ends of the self-locking buckle 4. Limiting grooves 12 are provided at both ends of the mounting groove 11. The limiting blocks 14 correspond to the limiting grooves 12. When the pressing block 16 moves inward, it will squeeze the limiting blocks 14 at both ends of the self-locking buckle 4. Under the action of the springs 13, the limiting blocks 14 can move outward and engage with the limiting grooves 12. At this time, the entire self-locking buckle 4 can lock with the mounting part 3 and also lock with the filter screen 5, achieving the effect of one press and two locks.

[0025] Working principle: In use, first align the self-locking buckle 4 with the mounting groove 11 inside the mounting part 3, ensuring it is fully inserted into the mounting groove 11. Then, align the elastic clip 7 on the inner side of the filter screen 5 with the opening position of the self-locking buckle 4, and press the barb 6 inward. At this time, the elastic clip 7 and the barb 6 experience their first compression. The pressing block 16 moves along a predetermined trajectory into the self-locking buckle 4 to the first position and stays there. The elastic clip 7 then retracts into the self-locking buckle 4 and remains inside it. Due to the restriction of the self-locking buckle 4, the two elastic clips 7 are close together and cannot swing freely, thus preventing the filter screen from being fully inserted. The hook 6 and the protrusion at the end of the elastic clip 7 are tightly fastened together, so that the filter screen 5 is in a locked state. As the pressing block 16 moves inward, it will squeeze the limiting blocks 14 at both ends of the self-locking buckle 4. Under the action of the spring 13, the limiting blocks 14 can move outward and engage with the limiting groove 12. At this time, the entire self-locking buckle 4 can lock with the mounting part 3 and the filter screen 5 at the same time, achieving the effect of one press and two locks. When disassembling, it is only necessary to press the filter screen 5 inward again to complete its synchronous disassembly. The entire self-locking protective structure is time-saving and labor-saving and can be easily removed.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-locking protective device, comprising a blower barrel (2), characterized in that, One end of the hair dryer barrel (2) is fixedly connected to a handle (1), and an installation part (3) is installed inside the hair dryer barrel (2). An installation groove (11) is opened in the middle of the installation part (3), and a self-locking buckle (4) is installed inside the installation groove (11). A spring (10) is fixedly connected inside the self-locking buckle (4). The other end of the spring (10) is fixedly connected to a pressing block (16), the other end of the pressing block (16) is fixedly connected to a connecting block (15), the other end of the connecting block (15) is fixedly connected to two elastic clips (7), and the elastic clips (7) are disposed through one end of the self-locking buckle (4). The inside of the elastic clips (7) is correspondingly engaged with a barb (6), and the other end of the barb (6) is fixedly connected to a filter screen (5).

2. The self-locking protective device as described in claim 1, characterized in that: A rotating rod (8) is rotatably connected to the pressing block (16), and a slider (9) is provided at the end of the rotating rod (8).

3. The self-locking protective device as described in claim 2, characterized in that: The self-locking buckle (4) has a guide groove (17) on its outer side, and the slider (9) is slidably connected inside the guide groove (17).

4. The self-locking protective device as described in claim 1, characterized in that: The inner two ends of the self-locking buckle (4) are fixedly connected to spring two (13), and the other end of the spring two (13) is fixedly connected to a limit block (14), and the limit block (14) is disposed through both ends of the self-locking buckle (4).

5. A self-locking protective device as described in claim 4, characterized in that: The mounting groove (11) has limit grooves (12) at both ends, and the limit block (14) corresponds to the limit groove (12).

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