Anti-loosening screw

Abstract

The utility model relates to the technical field of screws, and in particular to an anti-loosening screw. Its technical solution includes: a screw head, a screw rod is fixedly sleeved at the bottom of the screw head; a groove is provided on the upper surface of the screw head, a rotating block is movably provided inside the groove, and a hexagonal adjustment block is fixedly connected to the upper surface of the rotating block; a mounting groove is provided inside the screw rod, the mounting groove is movably sleeved with the lower end of the rotating block, and a group of sliding grooves are provided on the inner wall of the mounting groove; an adjustment component is provided inside the mounting groove for adjusting the screw thread. The utility model can adjust the thread distance of the outer wall of the convenient screw, so that the contact area between the screw and the threaded hole is larger, and loosening is prevented, thereby improving the assembly accuracy, enhancing the stability of the connection, and adapting to threaded holes of different sizes, thereby improving the scope of application.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to an anti-loosening screw. Background Art

[0002] A screw is a widely used fastener, usually used to fasten two or more components together. It consists of a head and a cylinder with a spiral thread, which can be screwed into a pre-drilled hole by rotating the screw, thereby creating friction and tension between the components to maintain their relative position. Screws are usually made of metal, such as steel, stainless steel, copper and aluminum, etc., but can also be made of plastic or other materials. They come in a variety of shapes and sizes to suit different application requirements.

[0003] During the use of existing screws, since the screws need to be repeatedly disassembled and assembled, the threaded holes and the threads on the screws will be repeatedly rubbed, causing the threaded holes and the screws to be worn and unable to be tightly threadedly connected, resulting in looseness, which will affect the tightening effect of the screws and may even cause the screws to fall off, posing a safety hazard.

[0004] Therefore, the utility model provides an anti-loosening screw. Utility Model Content

[0005] The purpose of the utility model is to propose an anti-loosening screw to address the problem in the background technology that repeated disassembly and assembly of screws will cause repeated friction between the threaded hole and the threads on the screw, making it impossible for the threaded hole and the screw to be tightly threadedly connected, thereby causing looseness, affecting the fastening effect of the screw, and even causing the screw to fall off, posing a safety hazard.

[0006] The technical solution of the utility model is as follows: an anti-loosening screw comprises: a screw head, a screw rod is fixedly sleeved at the bottom of the screw head; a groove is provided on the upper surface of the screw head, a rotating block is movably provided inside the groove, and a hexagonal adjustment block is fixedly connected to the upper surface of the rotating block; a mounting groove is provided inside the screw rod, the mounting groove is movably sleeved with the lower end of the rotating block, and a group of sliding grooves are provided on the inner wall of the mounting groove; and an adjustment component is arranged inside the mounting groove for adjusting the screw thread.

[0007] Optionally, the adjustment assembly includes a threaded rod fixedly arranged on the bottom surface of the rotating block, the outer wall of the threaded rod is threadedly sleeved with an internal threaded sleeve, and the outer wall of the internal threaded sleeve is fixedly provided with a plurality of guide blocks.

[0008] Optionally, the adjustment assembly also includes a guide rod fixedly arranged inside the slide groove, the outer wall of the guide rod is movably sleeved with a guide sleeve block, the outer wall of the guide rod is sleeved with a spring, one end of the spring is connected to the inner wall of the slide groove, the other end of the spring is fixedly connected to the guide sleeve block, an external thread block is fixedly arranged between the guide sleeve blocks, the external thread block is slidably connected to the mounting groove, the inner annular surface of the external thread block is provided with a guide groove, and the guide groove is slidably connected to the guide block.

[0009] Optionally, a drill bit is fixedly provided at the lower end of the screw rod.

[0010] Optionally, a gasket is fixedly provided on the bottom surface of the screw head, and the gasket is sleeved with the screw rod.

[0011] Optionally, the internal threaded sleeve is arranged in a conical structure.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model comprises a rotating block, a hexagonal adjusting block, a threaded rod, an internal threaded sleeve and an external threaded block. By rotating the hexagonal adjusting block, the hexagonal adjusting block drives the threaded rod at the bottom of the rotating block to rotate, the threaded rod pushes the internal threaded sleeve to move vertically downward, and the internal threaded sleeve pushes the external threaded block to move horizontally outward inside the installation groove, so that the thread distance of the outer wall of the screw can be conveniently adjusted, so that the contact area between the screw and the threaded hole is larger, and looseness is prevented, thereby improving assembly accuracy, enhancing the stability of the connection, and adapting to threaded holes of different sizes, thereby improving the scope of application;

[0014] Furthermore, the slide groove, guide rod, guide sleeve block and spring of the utility model guide the external thread block during its horizontal movement, making the horizontal movement more stable. At the same time, the guide block and guide groove can limit the external thread block to avoid displacement during the movement, making the horizontal movement more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an anti-loosening screw of the utility model is given;

[0016] Figure 2 Provide the utility model Figure 1 A schematic diagram of a cross-sectional structure viewed from the front toward the inside;

[0017] Figure 3 Provide the utility model Figure 1 Schematic diagram of the internal split structure of the screw rod;

[0018] Figure 4 Provide the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0019] Reference numerals:

[0020] 1. Screw head; 2. Screw rod; 3. Groove; 4. Rotating block; 5. Hexagonal adjustment block; 6. Mounting slot; 7. Slide slot;

[0021] 8. Adjustment assembly; 81. Threaded rod; 82. Internal thread sleeve; 83. Guide block; 84. Guide rod; 85. Guide sleeve block; 86. Spring; 87. External thread block; 88. Guide groove;

[0022] 9. Drill bit; 10. Gasket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Example

[0028] like Figure 1 and Figure 2As shown, the utility model proposes an anti-loosening screw, comprising: a screw head 1, a screw rod 2 is fixedly sleeved at the bottom of the screw head 1, and the screw head 1 and the screw rod 2 are welded and integrated; a groove 3 is provided on the upper surface of the screw head 1, a rotating block 4 is movably provided inside the groove 3, and a hexagonal adjusting block 5 is fixedly connected to the upper surface of the rotating block 4, which is convenient for using a tool to rotate it; a mounting groove 6 is provided inside the screw rod 2, the mounting groove 6 is movably sleeved with the lower end of the rotating block 4, which is convenient for the rotating block 4 to perform limited rotation, and a group of sliding grooves 7 are provided on the inner wall of the mounting groove 6, and the sliding grooves 7 are symmetrically arranged; an adjusting component 8 for adjusting the screw thread is arranged inside the mounting groove 6, which can conveniently and quickly adjust the thread distance of the outer wall of the screw, so that it is more adapted to the threaded hole, thereby improving the stability of the connection.

[0029] like Figure 2 As shown, the adjustment assembly 8 includes a threaded rod 81 fixedly arranged on the bottom surface of the rotating block 4, and the rotating block 4 and the threaded rod 81 are welded, and the outer wall of the threaded rod 81 is threadedly sleeved with an internal threaded sleeve 82 to facilitate adjustment of the position of the internal threaded sleeve 82, and the outer wall of the internal threaded sleeve 82 is fixedly provided with multiple guide blocks 83.

[0030] like Figures 2 to 4 As shown, the adjustment component 8 also includes a guide rod 84 fixedly arranged inside the slide groove 7, and the outer wall of the guide rod 84 is movably sleeved with a guide sleeve block 85, and the outer wall of the guide rod 84 is sleeved with a spring 86, one end of the spring 86 is connected to the inner wall of the slide groove 7, and the other end of the spring 86 is fixedly connected to the guide sleeve block 85, which can guide and buffer the guide sleeve block 85, making it more stable during movement, and an external thread block 87 is fixedly arranged between the guide sleeve blocks 85, and the inner surface of the external thread block 87 is inclined and fits with the outer wall of the internal thread sleeve 82, and the external thread block 87 is slidably connected to the mounting groove 6, which can guide the external thread block 87, making its movement more stable, and a guide groove 88 is provided on the inner ring surface of the external thread block 87, and the guide groove 88 is slidably connected to the guide block 83, which can limit and guide the internal thread sleeve 82, making its vertical movement more stable.

[0031] Furthermore, a drill bit 9 is fixedly provided at the lower end of the screw rod 2, which can be used to drill holes in objects without pre-drilling, thereby improving the efficiency of fixing the objects and providing better torque transmission and gripping force, making the fixation more secure.

[0032] Secondly, a gasket 10 is fixedly provided on the bottom surface of the screw head 1, and an anti-slip groove is provided on the bottom surface of the gasket 10, which can increase the friction in contact with the object and make the connection more stable. The gasket 10 is sleeved with the screw rod 2 to avoid loss, which can increase the contact area between the screw and the object and disperse the pressure.

[0033] Furthermore, the internal thread sleeve 82 is configured as a conical structure, which facilitates pushing the external thread block 87 to move horizontally toward the outside of the screw rod 2, thereby adjusting the distance of the thread to make it more suitable for the threaded hole.

[0034] The working principle of this embodiment is as follows: when using the anti-loosening screw, a tool is used to rotate the hexagonal adjustment block 5, the hexagonal adjustment block 5 drives the rotating block 4 to rotate inside the groove 3, the rotating block 4 drives the threaded rod 81 to rotate, the threaded rod 81 drives the internal threaded sleeve 82 to move vertically downward, and the internal threaded sleeve 82 drives the guide block 83 to move vertically downward in the guide groove 88 during the vertical downward movement, thereby limiting the internal threaded sleeve 82 to prevent rotation during the vertical downward movement.

[0035] Furthermore, during the vertical downward movement of the internal threaded sleeve 82, the external threaded block 87 is pushed to move toward the outside of the screw rod 2. During the movement, the external threaded block 87 drives the guide sleeve block 85 to slide horizontally on the outer wall of the spring 86, so that the horizontal movement of the external threaded block 87 is more stable. The guide sleeve block 85 pushes the spring 86 to contract, which can guide and buffer the guide sleeve block 85 during the horizontal sliding process, making its movement more stable, thereby conveniently adjusting the thread distance of the outer wall of the screw, making the contact area between the screw and the threaded hole larger, preventing loosening, thereby improving assembly accuracy, enhancing the stability of the connection, and adapting to threaded holes of different sizes, thereby increasing the scope of application.

[0036] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An anti-loosening screw, characterized in that: include: A screw head (1), wherein a screw rod (2) is fixedly sleeved at the bottom of the screw head (1); A groove (3) is provided on the upper surface of the screw head (1), a rotating block (4) is movably arranged inside the groove (3), and a hexagonal adjusting block (5) is fixedly connected to the upper surface of the rotating block (4); A mounting groove (6) is provided inside the screw rod (2), the mounting groove (6) is movably sleeved with the lower end of the rotating block (4), and a group of sliding grooves (7) are provided on the inner wall of the mounting groove (6); An adjustment component (8) is arranged inside the mounting groove (6) and is used for adjusting the screw thread.

2. The anti-loosening screw according to claim 1, characterized in that: The adjustment assembly (8) comprises a threaded rod (81) fixedly arranged on the bottom surface of the rotating block (4); the outer wall of the threaded rod (81) is threadedly sleeved with an internal threaded sleeve (82); and the outer wall of the internal threaded sleeve (82) is fixedly provided with a plurality of guide blocks (83).

3. The anti-loosening screw according to claim 2, characterized in that: The adjustment assembly (8) further comprises a guide rod (84) fixedly arranged inside the slide groove (7), the outer wall of the guide rod (84) being movably sleeved with a guide sleeve block (85), the outer wall of the guide rod (84) being sleeved with a spring (86), one end of the spring (86) being connected to the inner wall of the slide groove (7), the other end of the spring (86) being fixedly connected to the guide sleeve block (85), an external thread block (87) being fixedly arranged between the guide sleeve blocks (85), the external thread block (87) being slidably connected to the mounting groove (6), a guide groove (88) being provided on the inner ring surface of the external thread block (87), and the guide groove (88) being slidably connected to the guide block (83).

4. The anti-loosening screw according to claim 1, characterized in that: A drill bit (9) is fixedly arranged at the lower end of the screw rod (2).

5. The anti-loosening screw according to claim 1, characterized in that: A gasket (10) is fixedly arranged on the bottom surface of the screw head (1), and the gasket (10) is sleeved with the screw rod (2).

6. The anti-loosening screw according to claim 2, characterized in that: The internal thread sleeve (82) is arranged in a conical structure.

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