A fastening screw which is easy to detach

Abstract

The utility model provides a kind of fastening screw convenient to disassemble, comprising: end and stem part;The end has first slot, and the first slot inner wall is provided with the handle end for assisting end;Expansion mechanism, with the handle end transmission connection, for promoting handle end to be telescopic;Positioning mechanism, with the expansion mechanism transmission connection, for positioning expansion mechanism, the stem part is fixedly connected at end bottom, and stem part outer surface is equipped with self-locking thread.The utility model realizes the convenient disassembly of screw whole and the contraction of handle end is stored.Not only avoid handle end to occupy screw outer end space, also ensure the beauty and normal use of screw.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a fastening screw that is easy to disassemble. Background Technology

[0002] In the existing technological system, traditional screws (such as slotted screws and Phillips head screws) mainly rely on the interaction between the threads and the nut or threaded hole to achieve the purpose of fastening. However, when disassembling these traditional screws, special tools such as screwdrivers and wrenches must be used. If the tool is not compatible with the screw slot type, such as stripping the threads when using a Phillips head screwdriver, it will cause difficulties in disassembly and may even damage the screw head.

[0003] While existing removable screws (such as hex socket head cap screws) have improved tool compatibility to some extent, specific tools are still required for disassembly. This makes disassembly with tools in scenarios where frequent screw assembly and disassembly are required (such as temporarily assembled furniture or toys, where screws need to be frequently assembled and disassembled to secure the structure) rather inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a fastening screw that is easy to disassemble.

[0005] To address the aforementioned issue that while existing removable screws (such as hex socket head cap screws) have improved tool compatibility to some extent, specific tools are still required for disassembly. This makes disassembly with tools in work scenarios requiring frequent screw assembly and disassembly (such as temporarily assembled furniture or toys, where screws are used to fix structures) inconvenient. The technical solution adopted by this utility model is as follows:

[0006] A fastening screw that is easy to disassemble includes: an end and a shank;

[0007] The end has a first groove, and the inner wall of the first groove is provided with a handle end for assisting the end.

[0008] A telescopic mechanism, which is connected to the handle end via a transmission, is used to push the handle end to extend or retract;

[0009] A positioning mechanism is connected to the telescopic mechanism via a transmission connection and is used to position the telescopic mechanism.

[0010] Preferably, the rod is fixedly connected to the bottom of the end, and the outer surface of the rod is provided with a self-locking thread.

[0011] Preferably, both ends of the first groove extend outward through the end, and there are two handle ends, which are symmetrically distributed and adhere to the inner wall of the first groove.

[0012] Preferably, the telescopic mechanism includes a second groove formed at the upper end and a slider that is movably connected to the inner wall of the second groove. A push button is fixedly connected to the upper end of the slider, a positioning block is fixedly connected to the bottom of the slider, and a first spring is fixedly connected to the inner wall of the second groove.

[0013] Preferably, the second groove extends vertically into the interior of the first groove, the handle end is fixedly connected to the side end of the positioning block, the other end of the first spring away from the second groove is fixedly connected to the outer end of the slider, and the first spring is in a stretched state.

[0014] Preferably, the positioning mechanism includes a slide groove fixedly connected to the outer end of the positioning block and a pin hole opened at the outer end of the positioning block. The inner wall of the slide groove is movably connected to a pin block, and the outer end of the pin block is movably connected to the inner wall of the pin hole. The inner side wall of the slide groove is fixedly connected to a second spring, and the outer end of the second spring is fixedly connected to the inner side of the pin block.

[0015] Preferably, the groove has a U-shaped opening structure, the inner side of the pin hole and the outer end of the pin block are respectively provided with rounded corners, and a lever is fixedly connected to the outer end of the pin block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention uses a lever to push the pin block inward, causing the outer end of the pin block to move inward out of the inner wall of the pin hole, thereby releasing the limiting and positioning of the slide groove. At this time, under the action of the elastic potential energy generated by the stretching deformation of the first spring, the slider will slide outward along the inner wall of the second groove, and then drive the handle end to slide outward along the inner wall of the first groove through the positioning block. Twisting the extended handle end can drive the rod to rotate and disassemble, realizing convenient disassembly of the entire screw without additional tools;

[0018] In this invention, during the pushing process, the pin moves linearly along the inner wall of the groove, compressing the second spring. When the shank needs to be retracted, pushing the shank inward causes it to retract along the inner wall of the first groove. At this time, the elastic potential energy generated by the compression deformation of the second spring pushes the pin outward. When the shank is fully retracted into the first groove, the pin is pushed back into the pin hole by the second spring, achieving convenient disassembly of the screw and retraction of the shank. This design not only avoids the shank occupying space at the outer end of the screw but also ensures the screw's aesthetics and normal use. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0022] Figure 3 This is a partial structural cross-sectional view of the present invention.

[0023] Reference numerals: 1. End; 2. Rod; 3. First groove; 4. Handle end; 5. Second groove; 6. Slider; 7. Push button; 8. Positioning block; 9. First spring; 10. Slide groove; 11. Pin block; 12. Pin hole; 13. Second spring; 14. Paddle. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] Please see Figure 1 - Figure 3

[0027] This embodiment proposes a fastening screw that is easy to disassemble. The screw consists of an end portion 1 and a shank 2, wherein the shank 2 is fixedly connected to the bottom of the end portion 1 by welding or integral molding. The outer surface of the shank 2 is provided with a self-locking thread, so that by rotating the end portion 1, the shank 2 can be rotated, and the fastening effect can be achieved by utilizing the self-locking thread.

[0028] A first groove 3 is formed in the middle of end 1, with both ends extending outwards through the middle of end 1. Two symmetrically distributed handles 4 are movably connected to the inner wall of the first groove 3. These handles 4 not only facilitate the rotation of end 1, but their mutually abutting design effectively improves the stability of the handles 4 within the first groove 3. Furthermore, a second groove 5 is horizontally formed at the upper end of end 1, extending vertically into the first groove 3, providing precise limits for the horizontal linear movement of slider 6. Slider 6 is fixedly connected to a push button 7 by screws, allowing the user to easily move slider 6.

[0029] A positioning block 8 is bonded to the bottom of the slider 6, while the handle end 4 is bonded to the side end of the positioning block 8. This design allows the positioning block 8 to drive the handle end 4 to slide along the inner wall of the first groove 3. Simultaneously, a first spring 9 is bonded to the inner wall of the second groove 5, with its end away from the second groove 5 bonded to the outer end of the slider 6. When stretched, the first spring 9 provides elastic support to the slider 6, ensuring stable movement of the slider 6.

[0030] This embodiment also includes a slide groove 10 fixed to the outer end of the positioning block 8 by screws. The slide groove 10 has a U-shaped opening structure, and a pin block 11 is movably connected to its inner wall. A pin hole 12 is provided on the outer side of the end 1, and the outer end of the pin block 11 is movably connected to the inner wall of the pin hole 12. Through the cooperation between the pin block 11 and the pin hole 12, precise positioning of the slide groove 10 and the positioning block 8 is achieved. To facilitate the insertion of the pin block 11, the inner side of the pin hole 12 and the outer end of the pin block 11 are respectively designed with rounded corners.

[0031] A second spring 13 is bonded to the inner wall of the slide groove 10, and the outer end of the second spring 13 is bonded to the inner side of the pin block 11, providing elastic support for the pin block 11. A lever 14 is also bonded to the outer end of the pin block 11, making it convenient for the user to push the pin block 11 for operation.

[0032] In practical use, by pushing the pin 11 inward with the lever 14, the outer end of the pin 11 moves inward out of the inner wall of the pin hole 12, thereby releasing the limiting positioning of the slide groove 10. At this time, under the action of the elastic potential energy generated by the stretching deformation of the first spring 9, the slider 6 slides outward along the inner wall of the second groove 5, and then drives the handle end 4 to slide outward along the inner wall of the first groove 3 through the positioning block 8. Twisting the extended handle end 4 can drive the rod part 2 to rotate and disassemble, realizing convenient disassembly of the entire screw without the need for additional tools.

[0033] Simultaneously, during the pushing of pin 11, pin 11 moves linearly along the inner wall of slide groove 10, compressing the second spring 13. When it is necessary to retract and store the shank end 4, pushing the shank end 4 causes it to retract inward along the inner wall of the first groove 3. At this time, the elastic potential energy generated by the compression deformation of the second spring 13 pushes pin 11 outward in the opposite direction. When the shank end 4 is fully retracted into the first groove 3, pin 11 is pushed back into the pin hole 12 by the second spring 13, realizing convenient disassembly of the screw and retraction and storage of the shank end 4. This design not only avoids the shank end 4 occupying the outer space of the screw, but also ensures the aesthetics and normal use of the screw.

[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A fastening screw that is easy to disassemble, characterized in that, include: Ends and rod sections; The end has a first groove, and the inner wall of the first groove is provided with a handle end for assisting the end. A telescopic mechanism, which is connected to the handle end via a transmission, is used to push the handle end to extend or retract; A positioning mechanism is connected to the telescopic mechanism via a transmission connection and is used to position the telescopic mechanism.

2. The easily removable fastening screw according to claim 1, characterized in that, The rod is fixedly connected to the bottom of the end, and the outer surface of the rod is provided with a self-locking thread.

3. The easily removable fastening screw according to claim 1, characterized in that, Both ends of the first groove extend outward through the end, and there are two handle ends, which are symmetrically distributed and adhere to the inner wall of the first groove.

4. The easily removable fastening screw according to claim 1, characterized in that, The telescopic mechanism includes a second groove at the upper end and a slider that is movably connected to the inner wall of the second groove. A push button is fixedly connected to the upper end of the slider, a positioning block is fixedly connected to the bottom of the slider, and a first spring is fixedly connected to the inner wall of the second groove.

5. The easily removable fastening screw according to claim 4, characterized in that, The second groove extends vertically into the interior of the first groove. The handle end is fixedly connected to the side end of the positioning block. The other end of the first spring, away from the second groove, is fixedly connected to the outer end of the slider, and the first spring is in a stretched state.

6. The easily removable fastening screw according to claim 5, characterized in that, The positioning mechanism includes a slide groove fixedly connected to the outer end of the positioning block and a pin hole opened at the outer end. The inner wall of the slide groove is movably connected to a pin block, and the outer end of the pin block is movably connected to the inner wall of the pin hole. The inner side wall of the slide groove is fixedly connected to a second spring, and the outer end of the second spring is fixedly connected to the inner side of the pin block.

7. The easily removable fastening screw according to claim 6, characterized in that, The groove has a U-shaped opening structure, and the inner side of the pin hole and the outer end of the pin block are respectively provided with rounded corners. A lever is fixedly connected to the outer end of the pin block.

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