Self-locking type anti-loosening small hardware metal fastener

Abstract

The utility model discloses a self-locking type anti-loosening small hardware metal fastener which comprises a connecting assembly, the connecting assembly comprises a metal bent pipe, grooves are formed in the two ends of the metal bent pipe, fastening assemblies are arranged in the grooves, a square block is fixedly connected to the surface of the inner side of an installation plate, and the square block is fixedly connected to the surface of the outer side of the installation plate. A round hole is formed in the side surface of the square block, a connecting shaft is rotationally connected to the inner wall of the round hole, a clamping plate is fixedly connected to the side surface of the connecting shaft, and the outer side surface of the mounting plate is fixedly connected to the inner wall of the groove. According to the self-locking type anti-loosening small hardware metal fastener, through rotation of the stop nut on the threaded cylinder and fastening of the two clamping plates on a target, two locking modes are used for achieving a synergistic effect through different principles, double guarantees are formed, and the situation that the anti-loosening reliability of the fastener is reduced due to failure of key components or principles is avoided; the beneficial effect of improving the reliability and the stability of the device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of small hardware metal fasteners, specifically a self-locking anti-loosening small hardware metal fastener. Background Technology

[0002] Ordinary bolt and nut connections are prone to loosening under conditions such as vibration, impact, temperature changes, and long-term alternating loads. Traditional anti-loosening methods, such as spring washers and cotter pins, have limited effectiveness. Spring washers experience rapid spring force decay under high-frequency vibration, resulting in poor reliability in preventing loosening; cotter pins require matching slotted nuts, are inconvenient to install, and are only suitable for specific applications.

[0003] In current technology, self-locking anti-loosening metal fasteners often rely on a single locking method. If a key component or principle fails under this method, there are no other safeguards against loosening. In practical applications, multiple adverse factors such as vibration, impact, and temperature changes may occur simultaneously, making it difficult for a single locking method to provide comprehensive protection and significantly reducing its reliability. Furthermore, some anti-loosening devices require identifying the fastening structure before tightening the target, which can lead to errors and affect installation efficiency.

[0004] Therefore, this utility model provides a self-locking anti-loosening small hardware metal fastener to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a self-locking anti-loosening small hardware metal fastener, which solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-locking anti-loosening small hardware metal fastener, including a connecting component, the connecting component including a metal bend, both ends of the metal bend having grooves, a fastening component being disposed inside the groove, the fastening component including a mounting plate, a square block being fixedly connected to the inner surface of the mounting plate, a round hole being opened on the side surface of the square block, a connecting shaft being rotatably connected to the inner wall of the round hole, a clamping plate being fixedly connected to the side surface of the connecting shaft, and the outer surface of the mounting plate being fixedly connected to the inner wall of the groove.

[0007] Furthermore, one end of a spring is fixedly connected to the outer surface of the clamping plate, and the other end of the spring is fixedly connected to the inner surface of the mounting plate.

[0008] By adopting the above technical solution, the device uses two locking methods with different principles working together to form a double guarantee through the rotation of the locking nut on the threaded cylinder and the fastening of the two clamps to the target. This avoids the reduction of the device's anti-loosening reliability due to the failure of key components or principles, and achieves the beneficial effect of improving the device's reliability and stability.

[0009] Furthermore, the outer end of the mounting plate is fixedly connected to the inner wall of a threaded tube, and the outer end of the threaded tube is fixedly connected to a limiting plate.

[0010] By adopting the above technical solution, the threaded tube is fixedly connected to the mounting plate, which can provide a stable foundation for the threaded connection and ensure the reliability when screwed with the locking nut.

[0011] Furthermore, a strip groove is formed on the upper surface of the limiting plate, and the strip groove is formed on the outer surface of the threaded tube.

[0012] By adopting the above technical solution, the strip groove makes the device more suitable for use with thicker fastening targets.

[0013] Furthermore, a locking nut is screwed onto the outer surface of the threaded tube.

[0014] By adopting the above technical solution, the locking nut can provide additional friction, effectively preventing the connecting parts from loosening due to vibration, impact and other factors, and enhancing the overall anti-loosening performance of the fastener.

[0015] Furthermore, the structures at both ends of the metal bend are identical.

[0016] By adopting the above technical solution, the consistent structure at both ends reduces the difficulty and cost of production. During production, there is no need to design different molds or processing techniques for the two ends, avoiding the need to distinguish between the two ends during installation. Either end can be installed first, thereby improving installation efficiency and reducing the probability of errors.

[0017] Beneficial effects

[0018] This utility model provides a self-locking anti-loosening small hardware fastener. Compared with the prior art, it has the following advantages:

[0019] 1. This self-locking anti-loosening small hardware fastener, through the rotation of the locking nut on the threaded cylinder and the tightening of the target by the two clamps, enables the device to form a double guarantee by the synergistic effect of two locking methods based on different principles. This avoids the reduction of the device's anti-loosening reliability due to the failure of key components or principles, and achieves the beneficial effect of improving the reliability and stability of the device.

[0020] 2. This self-locking anti-loosening small hardware fastener reduces manufacturing difficulty and cost by having identical structures at both ends. During production, there is no need to design different molds or processing techniques for the two ends, avoiding the need to distinguish between the two ends during installation. Either end can be installed first, which improves installation efficiency and reduces the probability of errors. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is a structural cross-sectional view of the present invention;

[0024] Figure 3 This is a side view of part of the fastening component structure of this utility model;

[0025] Figure 4 This is the utility model Figure 3 Figure A in the diagram.

[0026] In the diagram: 1. Connecting assembly; 101. Metal bend; 102. Groove; 2. Fastening assembly; 201. Mounting plate; 202. Square block; 203. Round hole; 204. Connecting shaft; 205. Clamping plate; 206. Spring; 207. Threaded pipe; 208. Strip groove; 209. Locking nut; 210. Limiting plate. Detailed Implementation

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4This application provides a self-locking anti-loosening small hardware metal fastener, including a connecting component 1. The connecting component 1 includes a metal bend 101, with grooves 102 at both ends. A fastening component 2 is disposed inside the grooves 102. The fastening component 2 includes a mounting plate 201. A square block 202 is fixedly connected to the inner surface of the mounting plate 201. A circular hole 203 is formed on the side surface of the square block 202. A connecting shaft 204 is rotatably connected to the inner wall of the circular hole 203. A clamping plate 205 is fixedly connected to the side surface of the connecting shaft 204. The outer surface of the mounting plate 201 is fixedly connected to the inner wall of the groove 102. One end of a spring 206 is fixedly connected to the outer surface of the clamping plate 205, and the other end of the spring 206 is fixedly connected to the inner surface of the mounting plate 201.

[0030] In this embodiment, the end to be fastened is first inserted into the threaded tube 207. The side surface of the target object pushes the clamping plate 205 to both sides. The clamping plate 205 is rotatably connected to the square block 202 through the connecting shaft 204, forming a movable clamping structure. The spring 206 connects the clamping plate 205 and the mounting plate 201 at both ends, respectively. It uses elastic force to provide continuous clamping force, so that the clamping plate 205 is in close contact with the surface of the fastener. It resists lateral displacement through friction, thus achieving initial anti-loosening.

[0031] Reference Figures 1 to 4 In one aspect of this embodiment, the outer end of the mounting plate 201 is fixedly connected to the inner wall of the threaded tube 207, and the outer end of the threaded tube 207 is fixedly connected to the limiting plate 210.

[0032] In this embodiment, the threaded tube 207 serves as the core transmission component of the fastener. It engages with the stop nut 209 via its external thread to achieve the fastening of the fastened component.

[0033] Reference Figures 1 to 4 In one aspect of this embodiment, a strip groove 208 is provided on the upper surface of the limiting plate 210, and the strip groove 208 is provided on the outer surface of the threaded tube 207.

[0034] In this embodiment, the range of motion on both sides of the threaded tube 207 is increased by the strip groove 208, thereby adapting to fastening targets with larger diameters.

[0035] Reference Figures 1 to 4 In one aspect of this embodiment, a stop nut 209 is screwed onto the outer surface of the threaded tube 207.

[0036] In this embodiment, the locking nut 209 is tightened to create positive pressure on the contact surface between the threaded tube 207 and the locking nut 209, thereby further securing the target.

[0037] Reference Figures 1 to 4 In one aspect of this embodiment, the two ends of the metal bend 101 have the same structure.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] Working Principle: The symmetrical fastening components 2 at both ends enable the metal bend 101 to form a bidirectional clamping force balance when under force, avoiding structural skewing caused by uneven force on one side, and increasing the ease of installation. First, the end to be fastened is inserted into the threaded tube 207. The side surface of the target object pushes the clamping plate 205 to unfold to both sides. The clamping plate 205 is rotatably connected to the square block 202 through the connecting shaft 204, forming a movable clamping structure. The spring 206 is connected to the clamping plate 205 and the mounting plate 201 at both ends. When the clamping plate 205 rotates under the pressure of the target object, the spring 206 undergoes elastic deformation and accumulates elastic potential energy. When the target object is fully in the predetermined position, the spring 206 begins to release elastic potential energy, using elastic force to provide a continuous and stable clamping force, making the clamping plate 205 tightly adhere to the surface of the fastened object. At this time, a large frictional force is generated between the clamping plate 205 and the surface of the fastened object. This frictional force can effectively resist lateral displacement and prevent the target object from sliding or shifting in the horizontal direction, achieving initial anti-loosening. Even under slight vibration or external interference, the continuous elastic clamping force of the spring 206 can ensure that the clamping plate 205 and the fastener always maintain close contact and maintain the magnitude of friction, thereby ensuring the stability of the initial anti-loosening effect and providing a reliable foundation for subsequent tightening.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking anti-loosening small hardware metal fastener comprising a connecting assembly (1), characterized in that: The connecting component (1) includes a metal bend (101), both ends of which are provided with grooves (102). A fastening component (2) is provided inside the groove (102). The fastening component (2) includes a mounting plate (201). A square block (202) is fixedly connected to the inner surface of the mounting plate (201). A round hole (203) is provided on the side surface of the square block (202). A connecting shaft (204) is rotatably connected to the inner wall of the round hole (203). A clamping plate (205) is fixedly connected to the side surface of the connecting shaft (204). The outer surface of the mounting plate (201) is fixedly connected to the inner wall of the groove (102).

2. A self-locking anti-loosening small hardware metal fastener according to claim 1, characterized in that: One end of a spring (206) is fixedly connected to the outer surface of the clamping plate (205), and the other end of the spring (206) is fixedly connected to the inner surface of the mounting plate (201).

3. The self-locking anti-loosening fastener according to claim 1, wherein: The outer end of the mounting plate (201) is fixedly connected to the inner wall of the threaded tube (207), and the outer end of the threaded tube (207) is fixedly connected to the limiting plate (210).

4. The self-locking anti-loosening fastener according to claim 3, wherein: The upper surface of the limiting plate (210) is provided with a strip groove (208), which is located on the outer surface of the threaded tube (207).

5. The self-locking anti-loosening fastener according to claim 3, wherein: A stop nut (209) is screwed onto the outer surface of the threaded tube (207).

6. A self-locking anti-loosening small hardware fastener according to claim 1, characterized in that: The two ends of the metal bend (101) have the same structure.

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