Self-locking screw

Abstract

The utility model discloses a self-locking screw, and relates to the technical field of screws. The screw comprises a main body structure which comprises a screw body and an installation head located at one end of the main body structure. And an assembling structure, comprising a hexagonal containing groove formed in the inner wall of a screw body, a mounting block slidably mounted in the containing groove, butt joint blocks located at the upper end of the mounting block and symmetrically distributed, a handle located above the butt joint blocks, connecting blocks located at the lower end of the handle and located in the butt joint blocks, and a rotating shaft penetrating through the connecting blocks and rotationally mounted in the butt joint blocks. The self-locking structure comprises mounting grooves formed in the two ends of the screw body, clamping blocks located in the mounting grooves and torsional springs fixedly arranged at the two ends of the clamping blocks, and one ends of the torsional springs are connected with the inner walls of the mounting grooves. According to the self-locking screw, the assembling structure is arranged, so that the problem that when the self-locking screw is assembled, a screw driver or a wrench is still needed to serve as an assembling tool, so that the screw can be effectively rotated, and the assembling complexity is increased is solved.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, and in particular to a self-locking screw. Background Technology

[0002] Screws are a common type of mechanical fastener used to securely connect two or more pieces of sheet metal. Compared to adhesives, nails, and riveting, screws can be tightened or loosened at any time, facilitating the disassembly, adjustment, or repair of the sheet metal. Adhesives or welding, on the other hand, are usually permanent. The threaded design provides strong clamping force to prevent the sheet metal from loosening under vibration or load.

[0003] Chinese patent discloses a self-locking screw (publication number CN220286184U). This patented technology includes a screw rod with a rotating block and a screw-in mechanism mounted on the screw rod. The screw-in mechanism provides power for self-locking the screw rod manually. A limiting mechanism, also mounted on the screw rod, limits the position of the screw rod under the control of the screw-in mechanism. This self-locking screw differs from existing technologies in that, when used, the limiting mechanism, controlled by the screw-in mechanism, allows for easy release of the self-locking mechanism when the screw rod cannot pass through the workpiece, facilitating the separation and maintenance of connected workpieces.

[0004] However, this patent still has shortcomings. During assembly, a Phillips head screwdriver or wrench is still required to effectively rotate the screws, increasing the complexity of the assembly process. Therefore, those skilled in the art have provided an oyster peptide processing and separation device to solve the problems mentioned in the background section. Utility Model Content

[0005] 1. Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a self-locking screw, comprising,

[0008] The main structure includes the screw body and the mounting head located at one end of the main structure;

[0009] The assembly structure includes a hexagonal storage groove on the inner wall of the screw body, a mounting block that is slidably installed inside the storage groove, a mating block that is symmetrically distributed on the upper end of the mounting block, a handle on the upper end of the mating block, a connecting block located at the lower end of the handle and inside the mating block, and a rotating shaft that passes through the connecting block and is rotatably installed inside the mating block.

[0010] as well as;

[0011] The self-locking structure includes mounting slots at both ends of the screw body, a locking block located inside the mounting slot, and a torsion spring fixed at both ends of the locking block with one end connected to the inner wall of the mounting slot.

[0012] Specifically, the mounting slot is used to store the card block, so that the card block will not affect the thread screwing during assembly.

[0013] Furthermore, the mounting head has a limiting hole that communicates with the storage slot, and one end of the handle is slidably installed inside the limiting hole. The diameter of the limiting hole is smaller than that of the mounting block.

[0014] Specifically, the limiting hole allows the handle, connecting block, and mating block to pass through, while intercepting the mounting block to prevent it from completely disengaging from the travel groove.

[0015] Furthermore, a spring with an outer diameter smaller than that of the mounting head is sleeved on the outside of the screw body;

[0016] Specifically, the spring in the screw body is compressed during the screw-in process, compensating for the depth of the mounting hole when the screw fixes the plate, thus improving the adaptability of the screw during use.

[0017] Furthermore, both ends of the card block are provided with mounting shafts located inside the spring, and the inner wall of the mounting groove is provided with a rotating seat, with both ends of the mounting shaft rotatably mounted inside the rotating seat;

[0018] Specifically, the mounting shaft is rotatably supported by the rotating seat, so that when the torsion spring rotates, the block is rotatably supported, thus preventing the torsion spring from being subjected to excessive eccentric compression force.

[0019] Furthermore, the lower outer wall of the card block is arc-shaped and does not contact the inner wall of the mounting groove;

[0020] Specifically, when the locking block rotates, its arc-shaped lower end does not contact the inner wall of the lower end of the mounting groove, thus preventing the lower end of the locking block from rubbing against the inner wall of the mounting groove when supported by the torsion spring.

[0021] Furthermore, a positioning block is provided at the lower end of the card block, and a limiting block is provided on the inner wall of one side of the mounting groove, with the limiting block located on the rotation path of the positioning block;

[0022] Specifically, the positioning block rotates around the mounting shaft, driven by the locking block. When the positioning block rotates through the locking block, it is intercepted, causing the locking block to slightly open and extend to the outside of the mounting groove, effectively contacting the outer wall of the fixing plate. The contact between the locking block and the fixing plate forms a support to prevent reverse movement, thus achieving self-locking of the screw.

[0023] 2. Beneficial effects

[0024] Compared with existing technologies, the advantages of this utility model are:

[0025] In this utility model, a through-hole storage groove is provided inside the screw body, and a hexagonal mounting block is slidably installed inside the storage groove, which allows the screw body to be rotated by gripping the handle and driving the mounting block, thus avoiding the use of additional assembly tools.

[0026] Meanwhile, once the handle extends to a sufficient length, it can be rotated, allowing for better application of rotational force to the screw body through a pressing method. After use, the handle can be stored inside the travel groove, making the assembly structure aesthetically pleasing and reducing obstruction.

[0027] 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

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the storage slot of this utility model;

[0031] Figure 3 This is a partial top sectional view of the screw body of this utility model.

[0032] Figure 4 This is a side view of the three-dimensional structure of the card block of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 100. Main structure; 101. Screw body; 102. Mounting head; 103. Spring;

[0035] 200. Self-locking structure; 201. Locking block; 202. Mounting slot; 203. Mounting shaft; 204. Rotating seat; 205. Torsion spring; 206. Positioning block; 207. Limiting block;

[0036] 300. Assembly structure; 301. Limiting hole; 302. Handle; 303. Rotating shaft; 304. Connecting block; 305. Connecting block; 306. Mounting block; 307. Storage slot. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Example 1

[0042] Please see Figure 1-4 As shown, this embodiment is a self-locking screw, comprising:

[0043] The main structure 100 includes a screw body 101 and a mounting head 102 located at one end of the main structure 100;

[0044] The assembly structure 300 includes a hexagonal storage groove 307 formed on the inner wall of the screw body 101, a mounting block 306 slidably installed inside the storage groove 307, a mating block 305 symmetrically distributed on the upper end of the mounting block 306, a handle 302 above the mating block 305, a connecting block 304 located at the lower end of the handle 302 and inside the mating block 305, and a rotating shaft 303 that passes through the connecting block 304 and is rotatably installed inside the mating block 305.

[0045] The mounting head 102 has a limiting hole 301 that communicates with the storage groove 307. One end of the handle 302 is slidably installed inside the limiting hole 301. The diameter of the limiting hole 301 is smaller than that of the mounting block 306.

[0046] The assembly structure 300 is used;

[0047] In use, first, align the screw body 101 with the threaded hole of the pre-installed plate. The compensation spring 103 on the outside automatically adapts to the difference in hole depth, ensuring the assembly stability of plates of different thicknesses. The operator holds the exposed handle 302, which drives the hexagonal mounting block 306 in the storage groove 307 to rotate. The mounting block 306 and the hexagonal storage groove 307 inside the screw body 101 engage through a self-locking tooth profile. The torque is transmitted to the screw body 101 through the storage groove 307. When the screw is screwed into the target plate to the predetermined depth, the traditional screwdriver or wrench function is integrated into the handle 302 structure. The operator can directly hold and rotate it, improving assembly efficiency. After the handle 302 is stored, it is completely hidden inside the mounting head 102. The surface of the mounting head 102 is flat, meeting the aesthetic requirements of precision equipment. The compensation spring 103 dynamically adjusts the preload during the screw screwing process to distribute the assembly stress and prevent plate deformation.

[0048] Example 2

[0049] Please see Figure 1-4 As shown, and;

[0050] The self-locking structure 200 includes mounting grooves 202 opened at both ends of the screw body 101, a locking block 201 located inside the mounting groove 202, and a torsion spring 205 fixed at both ends of the locking block 201 and connected at one end to the inner wall of the mounting groove 202.

[0051] A spring 103 with an outer diameter smaller than that of the mounting head 102 is sleeved on the outside of the screw body 101;

[0052] Both ends of the locking block 201 are provided with mounting shafts 203 located inside the spring 103, and the inner wall of the mounting groove 202 is provided with a rotating seat 204, and both ends of the mounting shaft 203 are rotatably mounted inside the rotating seat 204.

[0053] The lower outer wall of the locking block 201 is arc-shaped and does not contact the inner wall of the mounting groove 202;

[0054] A positioning block 206 is provided at the lower end of the card block 201, and a limit block 207 is provided on the inner wall of one side of the mounting groove 202. The limit block 207 is located on the rotation path of the positioning block 206.

[0055] Use of the self-locking structure 200;

[0056] When the screw mounting slot 202 passes through the screw hole inside the mounting plate, the locking block 201 automatically pops out under the action of the torsion spring 205. Its lower end positioning block 206 forms a wedge angle with the mounting slot 202 limiting block 207, generating continuous positive pressure to achieve self-locking. The locking block 201 adopts a bistable structure design. During assembly, the torsion spring 205 stores energy, and during disassembly, pressing the locking block 201 can release the self-locking. In the self-locking state, it has the ability to resist vibration and relaxation. This design breaks through the problem of traditional screws and strong tool dependence, eliminates the dependence on external tools, shortens the assembly time, and the self-locking structure 200 is automatically triggered, avoiding additional assembly.

[0057] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] 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 self-locking screw, characterized by: The utility model relates to a screwdriver, which comprises a main body structure (100), an assembling structure (300) and a self-locking structure (200). The main body structure (100) comprises a screw body (101) and a mounting head (102) located at one end of the main body structure (100). The assembling structure (300) comprises a receiving groove (307) in the shape of a hexagon formed in the inner wall of the screw body (101), a mounting block (306) slidingly installed in the receiving groove (307), a plurality of butt blocks (305) symmetrically distributed on the upper end of the mounting block (306), a handle (302) located above the butt blocks (305), a connecting block (304) located at the lower end of the handle (302) and inside the butt blocks (305), and a rotating shaft (303) penetrating through the connecting block (304) and rotatingly installed in the butt blocks (305). The self-locking structure (200) comprises mounting grooves (202) formed at both ends of the screw body (101) and clamping blocks (201) located inside the mounting grooves (202), and torsional springs (205) fixed at both ends of the clamping blocks (201) and connected to the inner wall of the mounting grooves (202) at one end. The mounting head (102) is internally provided with a limiting hole (301) in communication with the receiving groove (307), one end of the handle (302) is slidingly installed in the limiting hole (301), and the limiting hole (301) has a smaller diameter than the mounting block (306).

2. A self-locking screw according to claim 1, characterized in that: The screw body (101) is externally sleeved with a spring (103) having a smaller outer diameter than the mounting head (102).

3. The self-locking screw of claim 1, wherein: Both ends of the clamping block (201) are provided with mounting shafts (203) located inside the spring (103), the inner wall of the mounting groove (202) is provided with a rotating seat (204), and both ends of the mounting shaft (203) are rotatingly installed in the rotating seat (204).

4. The self-locking screw of claim 1, wherein: The lower end of the clamping block (201) is in the shape of a circular arc and does not contact the inner wall of the mounting groove (202).

5. The self-locking screw of claim 1, wherein: The lower end of the clamping block (201) is provided with a positioning block (206), the inner wall of one side of the mounting groove (202) is provided with a limiting block (207), and the limiting block (207) is located on the rotating path of the positioning block (206).

6. The self-locking screw of claim 1, wherein: ​

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