Polygonal anti-pulling fastener

Abstract

The utility model relates to the field of fasteners, in particular to a multi-edge anti-pulling fastener which comprises a fixing ring, a screw, a second mounting column and a conical head, the lower end of the fixing ring is fixedly provided with first mounting columns distributed in an annular array mode, the lower ends of the first mounting columns are fixedly connected with the second mounting columns, the second mounting columns protrude outwards in an arc shape, and the conical head is fixedly connected with the screw. A third mounting column is fixedly connected to the lower end of the second mounting column, a conical head is fixed to the lower end of the third mounting column, and embedded blocks distributed in an annular array are arranged in the conical head. According to the device, the fastening effect of the device can be guaranteed by utilizing a two-section installation method and cooperating with a deformation mode after embedding, and the problem that an existing fastener lacks an effective fastening effect, so that looseness is likely to occur due to fierce shaking after fastening is solved.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, and in particular to a multi-faceted pull-out fastener. Background Technology

[0002] Fasteners are general-purpose parts used to connect, fix, or seal mechanical components and structural parts, and are widely used in industry, construction, automotive, and other fields. Common fasteners include bolts, nuts, screws, washers, rivets, etc. Their function is to tightly connect two or more parts through mechanical engagement, threaded fit, or pressure deformation, preventing loosening or displacement. Fasteners must possess characteristics such as high strength, corrosion resistance, and fatigue resistance to ensure the reliability and safety of the connection. Based on material, they can be divided into metallic (such as steel and stainless steel) and non-metallic (such as nylon) fasteners; based on function, they can be divided into permanent (such as rivets) and removable (such as bolts) categories.

[0003] A search revealed patent publication number CN203297295U, which discloses a non-detachable screw. This screw includes a screw head and a screw tail. The key feature is that the lower end of the screw head has a square washer with a wavy bottom surface. This allows the square washer to be directly fixed to the lower end of the screw, eliminating the need to find a suitable washer during assembly. Furthermore, the washer is firmly fixed to the screw and will not fall off. This invention provides a non-detachable screw with a simple structure, low cost, good clamping line, and a non-detachable washer, significantly reducing material waste due to loss and saving manpower and time. It is suitable for widespread application.

[0004] While existing technologies can achieve a certain tightening effect during use, they have the drawback that they lack effective tightening, leading to loosening due to violent shaking after tightening. In view of this, we propose a multi-faceted pull-out resistant fastener to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-faceted pull-out fastener.

[0006] The technical solution of this utility model is as follows: A multi-faceted anti-pull-out fastener includes a fixing ring, a screw, a second mounting post, and a conical head. The lower end of the fixing ring is fixed with a first mounting post arranged in a ring array. The lower end of the first mounting post is fixedly connected with a second mounting post. The second mounting post protrudes outward in an arc shape. The lower end of the second mounting post is fixedly connected with a third mounting post. The lower end of the third mounting post is fixed with a conical head. The conical head has embedded blocks arranged in a ring array inside.

[0007] When using this device, first cut a groove in the fixed position, then insert the third mounting post into it and hammer it inward. When the conical head reaches the bottom, the fixing ring is also flush with the groove opening. At this time, the second mounting post will deform inward, but the shape inside the groove does not change. The fixing ring can be easily pulled out. Then, insert the screw into the fixing ring and rotate it to the bottom. The second mounting post gradually expands outward as the screw enters, strengthening the tightness of the fixing ring inside the groove opening. When the screw reaches the bottom, it can push the embedded block to the bottom, further ensuring the fastening effect of the device.

[0008] Preferably, the conical head has mounting grooves arranged in a ring array inside, and an insert block is inserted into the mounting groove. The ring array of mounting grooves and insert blocks inside the conical head allows the insert block to be evenly stressed and move downward under the action of the screw, thereby enhancing the fit between the conical head and the mounting base, improving the pull-out resistance, and preventing the device from rotating or falling off due to external forces.

[0009] Preferably, the inner walls on both sides of the mounting groove are provided with grooves, and the two sides of the embedded block are provided with limiting blocks. The limiting blocks are inserted into the grooves. The grooves on both sides of the mounting groove cooperate with the limiting blocks of the embedded block to ensure that the embedded block remains stable during movement, prevents it from tilting or getting stuck, and limits the range of movement of the embedded block to prevent it from leaving the mounting groove before installation, so that it can be accurately pressed down under the action of the screw and optimize the fastening effect.

[0010] Preferably, the mounting post three is designed with an inclination angle of five degrees. The five-degree inclination of the mounting post three makes it easier to guide the direction of force when hammered into the groove, reducing installation resistance. At the same time, the inclination angle helps the mounting post two to expand outward more smoothly when the screw is screwed in, improving the fastening efficiency.

[0011] Preferably, the inner wall of the fixing ring and the mounting post is provided with a threaded groove, and the screw is threadedly connected to the threaded groove. The threaded groove of the inner wall of the fixing ring and the mounting post is designed to be threadedly connected to the screw to ensure that the torque can be transmitted evenly when the screw is screwed in, thereby causing the mounting post to deform and making the fastening effect between it and the fastened device more stable.

[0012] Preferably, the screw has a nut at its upper end and a slotted nut in the middle. The slotted nut at the upper end of the screw facilitates operation with standard tools, simplifies the installation and disassembly process, improves construction efficiency, and reduces reliance on special tools.

[0013] Preferably, the lower end of the nut is provided with a washer, the diameter of which is larger than the outer tangent circle diameter of the nut. This can disperse the pressure of the nut on the retaining ring, prevent local stress concentration from causing deformation or damage, and at the same time enhance the sealing performance and reduce the risk of loosening.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model achieves rapid installation, stable embedding, and efficient fastening through the coordinated design of the fixing ring, mounting post II, conical head, and screw. The deformation of mounting post II after the screw is embedded creates a highly efficient locking effect within the slot.

[0016] Second, based on the first beneficial effect, the inclined mounting post reduces installation difficulty; the threaded connection and gasket design improve the ease of operation and durability. The conical head inserted into the bottom drives the insert block to move inward, further improving the fastening effect. The overall structure is simple and reliable, suitable for various fixing scenarios, and significantly improves installation efficiency and long-term stability.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the present invention after installation;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the embedded block of this utility model.

[0022] Figure label:

[0023] 1. Retaining ring; 2. Mounting post one; 3. Mounting post two; 4. Mounting post three; 5. Embedded block; 6. Conical head; 7. Mounting groove; 8. Washer; 9. Nut; 10. Screw; 11. Threaded groove; 12. Limiting block; 13. Groove; 14. Slotted blade. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a multi-faceted pull-out fastener, including a fixing ring 1, a screw 10, a second mounting post 3, and a conical head 6. The lower end of the fixing ring 1 is fixed with a first mounting post 2 arranged in a ring array. The lower end of the first mounting post 2 is fixedly connected with a second mounting post 3. The second mounting post 3 protrudes outward in an arc shape. The lower end of the second mounting post 3 is fixedly connected with a third mounting post 4. The lower end of the third mounting post 4 is fixed with a conical head 6. The conical head 6 has embedded blocks 5 arranged in a ring array inside.

[0030] When using this device, first cut a groove in the fixed position, then insert the mounting post 3 4 into the groove and hammer it inward. When the conical head 6 reaches the bottom, the fixing ring 1 is also flush with the groove opening. At this time, the mounting post 2 3 will deform inward, but the shape inside the groove does not change. The fixing ring 1 can be easily pulled out. Then, insert the screw 10 into the fixing ring 1 and rotate it to the bottom. As the screw 10 enters, the mounting post 2 3 gradually expands outward, strengthening the tightness of the fixing ring 1 inside the groove opening. When the screw 10 reaches the bottom, it can push the embedded block 5 to move to the bottom, further ensuring the fastening effect of the device.

[0031] Example 2

[0032] Please see Figures 1-4 As shown, this embodiment, based on embodiment 1, further includes: a conical head 6 with mounting grooves 7 arranged in a ring array inside, and an insert block 5 inserted into the mounting groove 7. The ring array mounting grooves 7 and insert blocks 5 inside the conical head 6 enable the insert block 5 to be evenly stressed and move downward under the action of the screw 10, thereby enhancing the fit between the conical head 6 and the mounting base, improving the pull-out resistance, and preventing the device from rotating or falling off due to external forces.

[0033] The inner walls on both sides of the mounting groove 7 are provided with grooves 13, and the two sides of the embedded block 5 are provided with limiting blocks 12. The limiting blocks 12 are inserted into the grooves 13. The grooves 13 on both sides of the mounting groove 7 cooperate with the limiting blocks 12 of the embedded block 5 to ensure that the embedded block 5 remains stable during movement, preventing it from tilting or getting stuck. At the same time, it limits the range of movement of the embedded block 5 to prevent the embedded block 5 from leaving the mounting groove 7 before installation, so that it can be accurately pressed down under the action of the screw 10, thus optimizing the fastening effect.

[0034] Mounting post 3 4 is designed with an inclination angle of five degrees. The five-degree inclination of mounting post 3 4 makes it easier to guide the direction of force when hammered into the groove, reducing installation resistance. At the same time, the inclination angle helps mounting post 2 3 to expand outward more smoothly when screw 10 is screwed in, improving fastening efficiency.

[0035] The inner walls of the retaining ring 1 and the mounting post 2 are provided with threaded grooves 11. The screw 10 is threadedly connected to the threaded grooves 11. The threaded connection design of the threaded grooves 11 on the inner walls of the retaining ring 1 and the mounting post 2 with the screw 10 ensures that the screw 10 can transmit torque evenly when screwed in, causing the mounting post 2 3 to deform, making its fastening effect with the fastened device more stable.

[0036] The screw 10 has a nut 9 at its upper end, and a slotted blade 14 in the middle of the nut 9. The slotted blade 14 and nut 9 at the upper end of the screw 10 facilitate operation with standard tools (such as screwdrivers), simplify the installation and disassembly process, improve construction efficiency, and reduce reliance on special tools.

[0037] The lower end of the nut 9 is provided with a washer 8. The diameter of the washer 8 is larger than the outer diameter of the nut 9. The washer 8 can disperse the pressure of the nut 9 on the retaining ring 1, prevent local stress concentration from causing deformation or damage, and at the same time enhance the sealing performance and reduce the risk of loosening.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-pronged pull-out resistant fastener comprising a retaining ring (1), a screw (10), a mounting post (2) and a conical head (6), characterized in that: The lower end of the fixed ring (1) is fixed with mounting column one (2) in annular array distribution, the lower end of mounting column one (2) is fixedly connected with mounting column two (3), mounting column two (3) is outwardly circular arc protruding, the lower end of mounting column two (3) is fixedly connected with mounting column three (4), the lower end of mounting column three (4) is fixed with conical head (6), the inside of conical head (6) is equipped with embedded block (5) in annular array distribution.

2. A multi-pronged pull-out resistant fastener according to claim 1, wherein: The inside of conical head (6) is equipped with mounting groove (7) in annular array distribution, the inside of mounting groove (7) is inserted with embedded block (5).

3. A multi-prong pull-out resistant fastener according to claim 2, wherein: The both sides of mounting groove (7) inner wall are equipped with recess (13), the both sides of embedded block (5) are equipped with limiting block (12), limiting block (12) is inserted in recess (13) inside.

4. A multi-ribbed pull-out resistant fastener according to claim 1, wherein: Mounting column three (4) is inclined design, and the inclination angle is five degrees.

5. A multi-ribbed pull-out resistant fastener according to claim 1, wherein: The inner wall of fixed ring (1) and mounting column one (2) is equipped with thread groove (11), the screw (10) is threadedly connected with thread groove (11).

6. A multi-ribbed pull-out resistant fastener according to claim 1, wherein: The upper end of screw (10) is equipped with nut (9), the middle part of nut (9) is equipped with one character mouth (14).

7. A multi-prong pull-out resistant fastener according to claim 6, wherein: The lower end of nut (9) is equipped with gasket (8), the diameter of gasket (8) is greater than the diameter of nut (9) excircle.

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