Hidden rust-proof countersunk bolt

Abstract

The utility model discloses a hidden type rust-proof countersunk bolt, and particularly relates to the technical field of bolts, the hidden type rust-proof countersunk bolt comprises a screw rod, one end part of the screw rod is fixedly connected with a bolt end head, and a convenient-to-disassemble assembly is embedded in the inner side of the end part of the bolt end head; the convenient-to-disassemble assembly comprises a circular plate installed at the end of the end of the bolt in an embedded mode, a plurality of clamping blocks are annularly arranged at the edge of the circular plate at equal intervals, an embedded block embedded into the end of the bolt is arranged at the bottom of the circular plate, a magnet piece is arranged at the bottom of the embedded block, and an inner hexagonal groove is formed in the middle of the circular plate. And the bottom of the inner hexagonal groove extends into the embedded block. The convenient-to-disassemble assembly is embedded in the top of the bolt end of the countersunk bolt, the whole convenient-to-disassemble assembly can be completely arranged in a groove in the top of the bolt end, the hidden effect is achieved, the convenient-to-disassemble assembly and the bolt end are fixed through magnetic attraction, and rapid installation, fixation and disassembly can be achieved; the force application area of the convenient-to-disassemble assembly on the end of the bolt is larger, and the effect is stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, and more specifically, to a hidden anti-rust countersunk head bolt. Background Art

[0002] A bolt is a commonly used connecting piece and is very common in the industrial field. To ensure the flatness of the mechanical structure surface, a countersunk head bolt is usually required. A groove with configurations such as a "one" character, a "cross", or an internal hexagon is opened at the head of the countersunk head bolt. When using the bolt, a tool is needed to drive the bolt into mechanical parts. However, sometimes due to operating errors, the tightening groove often cracks or wears severely, making it impossible to perform the wrenching operation on the bolt. At this time, it will be very troublesome and time-consuming to operate the bolt that has been screwed in.

[0003] After retrieval, a Chinese patent with the publication number CN216241726U discloses a hidden anti-rust countersunk head bolt, which includes a screw rod, a bolt head, and a bolt cover. Compared with the prior art, it can hide the tightening groove, thereby preventing the tightening groove from rusting and improving its service life.

[0004] However, when the above-mentioned hidden anti-rust countersunk head bolt is actually used, the designed bolt cover uses positioning posts to match positioning holes for positioning and installation. When turning, the force on the positioning posts is relatively large, and due to the relatively small structure of the bolt itself, the structure of the positioning posts will be even smaller. When turning, the positioning posts are prone to deformation or fracture, that is, there is a risk of instability during turning. Moreover, the structure for maintaining stability after the bolt cover is installed uses the action of a torsion spring and a pressing plate. Such a designed structure is relatively complex and not easy to process. Therefore, a structure that facilitates the quick installation and disassembly of the above bolt cover needs to be designed. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hidden anti-rust countersunk head bolt.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A hidden anti-rust countersunk head bolt includes a screw rod, and one end of the screw rod is fixedly connected with a bolt end, and a convenient disassembly component is embedded and installed inside the end of the bolt end.

[0007] The convenient disassembly component includes a round plate embedded in the end of the bolt end. A plurality of clamping blocks are arranged at equal intervals in a ring shape at the edge of the round plate, and an embedded block is arranged at the bottom of the round plate and is embedded inside the bolt end. A magnet sheet is arranged at the bottom of the embedded block. An internal hexagon groove is arranged in the middle of the round plate, and the bottom of the internal hexagon groove extends to the inside of the embedded block. A convenient disassembly hole is arranged on the inner wall of the internal hexagon groove inside the embedded block.

[0008] As a further improvement of the technical solution of the present utility model, an annular groove for embedding the disassembly facilitating component is provided at the end of the bolt head, and the depth of the annular groove is not less than the thickness of the disassembly facilitating component.

[0009] As a further improvement of the technical solution of the present utility model, at the edge of the annular groove corresponding to the clamping position of each clamping block at the end of the bolt head, a clamping groove is provided, the structure of the clamping groove matches that of the clamping block, the clamping block and the circular plate are of an integral structure, and the thickness of the clamping block and the circular plate is the same.

[0010] As a further improvement of the technical solution of the present utility model, the embedding block and the circular plate are of an integral structure, and the cross-section of the embedding block is a rectangular structure.

[0011] As a further improvement of the technical solution of the present utility model, the magnet sheet is fixed to the bottom of the embedding block by magnetic adsorption.

[0012] As a further improvement of the technical solution of the present utility model, an embedding groove for embedding the embedding block and the magnet sheet is provided inside the bolt head, the cross-section of the embedding groove is a rectangular structure, and the cross-sectional size of the embedding groove matches that of the embedding block.

[0013] As a further improvement of the technical solution of the present utility model, the depth of the embedding groove is equal to the sum of the thicknesses of the embedding block and the magnet sheet.

[0014] The beneficial effects of the present utility model:

[0015] 1. By embedding and installing the disassembly facilitating component on the top of the bolt head of the countersunk head bolt, the entire disassembly facilitating component can be completely placed in the groove body at the top of the bolt head to achieve a hidden effect, and the groove body at the top of the bolt head plays a protective role due to the installation of the disassembly facilitating component, so as to reduce or avoid the problem of rust in the internal groove of the bolt head. After the bottom of the disassembly facilitating component is embedded inside the bolt head, it is fixed by the magnet sheet and does not loosen to achieve rapid installation and fixation. Since the clamping blocks on the circular plate are embedded inside the clamping grooves and the embedding blocks are stuck inside the embedding grooves, when the disassembly facilitating component is rotated, the force application area of the disassembly facilitating component on the bolt head is larger and the effect is stronger;

[0016] 2. When the internal hexagonal groove on the disassembly facilitating component is damaged due to long-term screwing, it can be conveniently and quickly disassembled and replaced, and it will not cause difficulty in disassembling the countersunk head bolt. During disassembly, only need to use an external hook tool to hook the disassembly hole on the inner wall of the internal hexagonal groove to quickly remove the disassembly facilitating component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present utility model.

[0018] Figure 2 is an exploded view of the present utility model.

[0019] Figure 3 This is one of the structural schematic diagrams of the detachable component in the present utility model.

[0020] Figure 4 This is the second structural schematic diagram of the detachable component in the present utility model.

[0021] The reference numerals in the drawings are: 1, screw rod; 2, bolt end; 3, detachable component; 201, annular groove; 202, clamping groove; 203, embedding groove; 301, circular plate; 302, clamping block; 303, embedding block; 304, magnet sheet; 305, hexagon socket; 306, detachable hole. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0023] As shown in the Figures 1-4 hidden anti-rust countersunk head bolt, it includes a screw rod 1, one end of the screw rod 1 is fixedly connected with a bolt end 2, and a detachable component 3 is embedded and installed inside the end of the bolt end 2;

[0024] The detachable component 3 includes a circular plate 301 embedded and installed at the end of the bolt end 2. A plurality of clamping blocks 302 are arranged at equal intervals in a ring shape at the edge of the circular plate 301. And an embedding block 303 embedded inside the bolt end 2 is arranged at the bottom of the circular plate 301. A magnet sheet 304 is arranged at the bottom of the embedding block 303. A hexagon socket 305 is arranged in the middle of the circular plate 301. The bottom of the hexagon socket 305 extends to the inside of the embedding block 303. A detachable hole 306 is arranged on the inner wall of the hexagon socket 305 inside the embedding block 303.

[0025] As shown in the Figures 2-4 figure, an annular groove 201 for embedding the detachable component 3 is arranged at the end of the bolt end 2. The depth of the annular groove 201 is not less than the thickness of the detachable component 3. At the edge of the annular groove 201 at the end of the bolt end 2, a clamping groove 202 corresponding to the clamping position of each clamping block 302 is arranged. The structure of the clamping groove 202 matches that of the clamping block 302. The clamping block 302 and the circular plate 301 are of an integral structure, and the thickness of the clamping block 302 is the same as that of the circular plate 301, which is convenient for the circular plate 301 and the clamping block 302 at the top of the detachable component 3 to be embedded into the top of the bolt end 2.

[0026] Among them, the embedding block 303 and the circular plate 301 are of an integral structure. The cross-section of the embedding block 303 is a rectangular structure. The magnet sheet 304 is fixed to the bottom of the embedding block 303 by magnetic adsorption. An embedding groove 203 for the embedding block 303 and the magnet sheet 304 to be embedded is provided inside the bolt head 2. The cross-section of the embedding groove 203 is a rectangular structure, and the cross-section size of the embedding groove 203 matches that of the embedding block 303. The depth of the embedding groove 203 is equal to the sum of the thicknesses of the embedding block 303 and the magnet sheet 304, which facilitates the stable embedding of the embedding block 303 into the embedding groove 203 at the top of the bolt head 2. Thus, when the bolt is rotated, the embedding block 303 can cooperate with the clamping block 302 to apply force to the bolt head 2, improving the stability.

[0027] Working principle: The present utility model designs a concealed anti-rust countersunk head bolt, and the specific structure is as shown in the attached Figures 1-4 description. In this technical solution, by embedding and installing the detachable component 3 at the top of the bolt head 2 of the countersunk head bolt, the entire detachable component 3 can be completely placed in the groove body at the top of the bolt head 2. After the bottom of the detachable component 3 is embedded inside the bolt head 2, it is fixed and does not loosen through the magnet sheet 304. When disassembly is required, only need to use an external hook tool to hook the disassembly hole 306 on the inner wall of the hexagonal socket 305 to take out the detachable component 3. And when the bolt needs to be screwed on or off, insert an external hexagonal wrench tool into the inside of the hexagonal socket 305 and rotate it. At this time, the clamping block 302 on the circular plate 301 is embedded inside the clamping groove 202, and the embedding block 303 is stuck inside the embedding groove 203. When the detachable component 3 is rotated, the detachable component 3 has a larger force application area and stronger effect on the bolt head 2, and is not easily damaged. When the installation is completed, the detachable component 3 itself can be completely embedded in the top of the bolt head 2 to achieve a concealed effect, and the groove body at the top of the bolt head 2 plays a protective role due to the installation of the detachable component 3, thereby being able to reduce or avoid the problem of rust in the inner groove body of the bolt head 2. And when the hexagonal socket 305 on the detachable component 3 is damaged due to long-term screwing, it can be conveniently and quickly disassembled and replaced, without causing difficulty in disassembling the countersunk head bolt.

[0028] Among them, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Hidden anti-rust countersunk head bolt, including a screw rod (1), one end of the screw rod (1) is fixedly connected with a bolt end (2), and it is characterized in that: An easily detachable component (3) is embedded and installed inside the end of the bolt head (2). The easily detachable component (3) includes a circular plate (301) embedded and installed at the end of the bolt head (2). A number of clamping blocks (302) are arranged at equal intervals in a ring shape at the edge of the circular plate (301). An embedding block (303) embedded inside the bolt head (2) is provided at the bottom of the circular plate (301). A magnet sheet (304) is provided at the bottom of the embedding block (303). An internal hexagonal groove (305) is provided in the middle of the circular plate (301). The bottom of the internal hexagonal groove (305) extends to the inside of the embedding block (303). An easily detachable hole (306) is provided on the inner wall of the internal hexagonal groove (305) inside the embedding block (303).

2. The hidden anti-rust countersunk head bolt according to claim 1, wherein: An annular groove (201) for the embedding of the easily detachable component (3) is provided at the end of the bolt head (2). The depth of the annular groove (201) is not less than the thickness of the easily detachable component (3).

3. The hidden anti-rust countersunk bolt according to claim 1, characterized in that: At the edge of the annular groove (201) at the end of the bolt head (2), a clamping groove (202) is provided corresponding to the clamping position of each clamping block (302). The clamping groove (202) matches the structure of the clamping block (302). The clamping block (302) and the circular plate (301) are of an integral structure, and the thickness of the clamping block (302) is the same as that of the circular plate (301).

4. The hidden anti-rust countersunk head bolt according to claim 1, characterized in that: The embedding block (303) and the circular plate (301) are of an integral structure. The cross-section of the embedding block (303) is a rectangular structure.

5. The hidden anti-rust countersunk bolt according to claim 1, wherein: The magnet sheet (304) is fixed to the bottom of the embedding block (303) by magnetic adsorption.

6. The hidden anti-rust countersunk bolt according to claim 1, wherein: An embedding groove (203) for the embedding of the embedding block (303) and the magnet sheet (304) is provided inside the bolt head (2). The cross-section of the embedding groove (203) is a rectangular structure, and the cross-sectional size of the embedding groove (203) matches that of the embedding block (303).

7. The hidden anti-rust countersunk bolt according to claim 6, wherein: The depth of the embedding groove (203) is equal to the sum of the thicknesses of the embedding block (303) and the magnet sheet (304).

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