Assembly capable of preventing loosening between components forming assembly

Abstract

The utility model relates to the field of part processing, and discloses an assembly capable of preventing assembly from loosening, which comprises a first assembly and a second assembly which are respectively provided with threads matched with each other, and an extension piece which is arranged between the first assembly and the second assembly and extends outwards from the first assembly, the first assembly is provided with an internal thread, the second assembly is provided with an external thread matched with the internal thread, and the first assembly is provided with a clamping assembly in the direction facing the extending piece. The anti-loosening device has the advantages that the anti-loosening technical problem is solved, and the anti-loosening device is simple, efficient and high in application value.

Description

Technical Field

[0001] This utility model relates to the field of parts processing, and in particular to a component that can prevent loosening between assembled components. Background Technology

[0002] For assemblies that rely on threaded connections, such as nuts and bolts, it is crucial to prevent the assemblies from moving away from their intended position along the mating threads as they reach it. Current technologies offer various methods to achieve this anti-loosening effect; however, considering cost and the feasibility of the assemblies retracting from their intended position after loosening, improvements to existing technologies are necessary. Therefore, ease of manufacturing and ease of retraction after loosening must be carefully considered. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies that, while capable of preventing loosening, cannot simultaneously balance ease of processing and ease of removal from the predetermined position after loosening. Instead, it provides a component that can prevent loosening between assembled components.

[0004] To achieve the above objectives, the present invention can adopt the following technical solution:

[0005] An assembly for preventing loosening between assembled components includes a first component, a second component, and an extension member extending outward from the first component between the first and second components. The first component has an internal thread, and the second component has an external thread that matches the internal thread. A locking component is provided on the first component toward the extension member, extending around the second component. The locking component includes a latch that applies pressure toward the extension member from the outside in along the radial direction of the second component. The latch is located at one end of the locking component, and the other end of the locking component extends toward the second component until it reaches the second component or a first surface fixed relative to the first component. The locking component also includes a resilient curved surface, the concave side of which faces the second component or the first surface and can deform during the tightening of the first and second components.

[0006] As an alternative, in this application, the shape of the bayonet includes at least a portion whose curvature differs from that of the remaining portion of the bayonet.

[0007] As an optional solution, in this application, the bayonet includes at least two sides located on both sides of the bayonet and a notch located between adjacent sides.

[0008] As an alternative, in this application, the notch has a gradually decreasing width along the side of the bayonet.

[0009] As an alternative, in this application, the portion of the bayonet near the clamping assembly extends along a surface substantially perpendicular to the extension.

[0010] As an alternative, in this application, the portion of the extension that contacts the bayonet includes a second surface with an angle relative to the extension direction of the second component.

[0011] As an alternative, in this application, the extension and the bayonet are assembled via the second surface.

[0012] As an alternative, in this application, the tilt angle of the second surface causes the outer side of the extension, which is farther from the first component portion, to be relatively closer to the outer side of the first component portion and further away from the second component.

[0013] As an alternative, in this application, the extension is a portion of the first component with internal threads.

[0014] As an alternative, in this application, the clamping component located on the outer portion of the curved surface includes at least a portion that presents a straight line segment along the radial direction of the second component.

[0015] This utility model has the following significant technical effects:

[0016] It has a good anti-loosening effect and low manufacturing cost. It only requires machining the extension part on the first component / nut. It can be completed during the nut machining process. Since the extension part can be regarded as part of the nut, it is equivalent to only needing to make a circular cut on one side of the nut to obtain the extension part. As for the clamping component, in terms of existing technology, it only needs to be produced by a similar sheet metal or extrusion method, and the processing cost is extremely low.

[0017] Furthermore, to improve the anti-loosening effect, the jaw is designed to be non-circular, which can apply irregular force around the clamping component and cause the clamping component to exhibit irregular deformation. This deformation can effectively increase the static friction coefficient and generate a force different from the normal direction, thereby improving the loosening effect.

[0018] In addition, due to the design of the bayonet, its elasticity is designed to change in a relatively linear way. When tightening the nut, the increase in the reverse resistance applied to the nut is more linear, making it easier to control the degree of tightening. Attached Figure Description

[0019] Figure 1 This is a side view of the anti-loosening component.

[0020] Figure 2 This is a schematic diagram of another side of the anti-loosening component.

[0021] Figure 3 A top view of the clamping assembly used to prevent loosening.

[0022] Figure 4 for Figure 3 A cross-sectional diagram along the AA direction.

[0023] Figure 5 A schematic diagram showing the anti-loosening components from the side.

[0024] Figure 6 for Figure 5 A schematic diagram of the AA-direction section. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments.

[0026] Example 1

[0027] like Figure 1-6 As shown, an extension includes a first component 100 and a second component 200, each having mutually matching threads, and an extension 300 extending outward from the first component 100 and disposed between the first component 100 and the second component 200. Generally, the first component 100 is a nut, and the second component 200 is a screw or a portion of a screw fixed to an object.

[0028] The first component 100 is provided with an internal thread 101, and the second component 200 is provided with an external thread that matches the internal thread 101. A clamping component 400 is provided in the direction of the first component 100 toward the extension 300. The extension 300 extends around the second component 200 to form a cylindrical structure. The diameter of the cylindrical extension 300 is relatively small compared to the first component 100 or the nut. For different processes, the inner wall of the extension 300 may or may not have an internal thread. The clamping component 400 includes a latch 401 that applies pressure to the extension 300 from the outside to the inside along the radial direction of the second component 200. The latch 401 on the clamping component 400 fits onto the outside of the extension 300. The latch 401 is located at one end of the clamping component 400, and the other end of the clamping component 400 extends toward the second component 200 until it reaches the second component 200 or a first surface 500 fixed relative to the first component 100. At this time, the second component 200 or the first surface 500 refers to an object or surface that the clamping component 400 can abut against under the pressure of the first component 100 or the nut. This object or surface and the first component 100 or the nut together apply an inward compression to the clamping component 400, thereby causing the clamping component 400 to deform. The clamping component 400 also includes an elastic curved surface 302, which is the main source of deformation. The concave side of the curved surface 302 faces the second component 200 or the first surface 500, and can deform during the tightening process of the first component 100 and the second component 200. The curved surface 302 makes the clamping component 400 appear as a bowl shape. Generally speaking, the curved surface can extend around the second component 200 or the screw, but the overall curved surface of the clamping component 400 described in this application embodiment can also be irregular.

[0029] Furthermore, the shape of the latch 401 includes at least a portion that has a different degree of curvature from the remaining portion of the latch 401. This degree of curvature can be expressed as curvature or a similar measure. This structure allows the latch 401 and the extension 300 to exhibit irregular and varying clamping forces along the direction surrounding the second component 200 or the screw. This can effectively cause the extension 300 to undergo irregular deformation accordingly, thereby increasing static friction and preventing relative sliding between the extension 300 and the clamping component 400.

[0030] Furthermore, the latch 401 includes at least two sides located on both sides of the latch and a notch 303 located between adjacent sides. If there are two notches 303, the latch 401 will have a walnut shape. This shape is beneficial for controlling the deformation of the clamping component 400. At the same time, the elastic force caused by the deformation is also in a gradual change. As the nut is tightened, after the extension is pressed, the increase in the elastic force of the feedback nut is relatively stable, which can better control the progress of the nut along the thread.

[0031] Furthermore, the notch 303 has a gradually decreasing width along the side of the latch 401, i.e., it has a pointed tip, which helps to control the area of ​​stress concentration on the clamping assembly 400.

[0032] Furthermore, the portion of the bayonet 401 near the extension 300 extends along a surface substantially perpendicular to the extension 300 to form a shape substantially perpendicular to the length direction of the second component 200 or the screw, resembling a bowl-shaped bottom, which can maximize the pressure applied to the extension 300.

[0033] Furthermore, the portion of the extension 300 that contacts the bayonet 401 includes a second surface (402) with an angle relative to the extending direction of the second component 200. Furthermore, the extension 300 and the bayonet 401 are assembled via the second surface (402). The angled second surface (402) increases the contact area between the clamping component 400 and the extension 300 bayonet 401, while simultaneously forming an assembly relationship. Optionally, the angle is 90 degrees.

[0034] Furthermore, the extension 300 is a part of the first component 100 with internal threads. Therefore, after the first component 100 or the nut is formed, the outer part of the first component 100 or the nut can be cut around the thread, leaving the part close to the internal thread, so that the extension 300 on the first component 100 can be formed directly.

[0035] Furthermore, the outer portion of the clamping assembly 400 located on the curved surface 302 includes at least a straight segment along the radial direction of the second assembly 200. Due to the presence of the curved surface 302, at least a portion of the outer side of the curved surface of the clamping assembly 400 forms a non-90-degree angle with the second assembly 200 or the screw. The angle of the second surface (402) causes the outer portion of the clamping assembly 400 away from the first assembly 100 to be relatively closer to the outer portion of the first assembly 100, and further away from the second assembly 200. This prevents the clamping assembly 400 from moving towards the portion of the extension 300 closer to the first assembly 100, which is less prone to deformation, thereby reducing the deformation effect of the extension.

[0036] In the above structure, a clamping component 400 is placed between a first component 100 and a second component 200 with matching threads. This clamping component 400 can deform by reducing the distance between the first component 100 and the second component 200 based on the matching of their threads. After deformation, the clamping component 400 deforms accordingly, causing the extension 300 of the first component 100 to be compressed by the clamping component 401. This results in the positional relationship between the first component 100 and the second component 200 being relatively fixed, thereby achieving the purpose of relaxation.

[0037] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. An assembly which can prevent loosening between assembled components, characterized by, The invention relates to a fastener comprising a first component (100) with an inner thread (101), a second component (200) with an outer thread (201) matching the inner thread (101), an extension (300) extending outwardly from the first component (100) between the first component (100) and the second component (200), and a clamping component (400) extending around the second component (200) in a direction of the first component (100) towards the extension (300), wherein the clamping component (400) comprises a clamping opening (401) at one end of the clamping component (400) applying pressure in a radial direction of the second component (200) towards the extension (300), and wherein the clamping component (400) comprises a curved surface (302) with a concave side facing the second component (200) or a first face (500) fixed relative to the first component (100) and being deformable during screwing of the first component (100) and the second component (200). The clamping opening (401) comprises at least one portion with a different curvature than the remaining portion of the clamping opening (401).

2. An assembly which can prevent looseness of an assembled assembly according to claim 1, wherein The clamping opening (401) comprises at least two sides and a gap (303) between the sides.

3. The assembly of claim 1, wherein The gap (303) has a shape with a decreasing width in a direction of the sides of the clamping opening (401).

4. An assembly which can prevent looseness of an assembled assembly according to claim 3, wherein The portion of the clamping opening (401) near the clamping component (400) extends perpendicular to a surface of the extension (300).

5. The assembly of claim 1, wherein The portion of the extension (300) in contact with the clamping opening (401) comprises a second face (402) with an angle relative to the direction of extension of the second component (200).

6. The assembly of claim 1, wherein The extension (300) and the clamping opening (401) are assembled by means of the second face (402).

7. An assembly which can prevent looseness between assembled components according to claim 6, wherein The angle of the second face (402) is such that the outer side of the portion of the extension (300) further away from the first component (100) is more distant from the second component (200) than the outer side of the portion of the extension (300) closer to the first component (100).

8. The assembly of claim 6, wherein The extension (300) is a portion of the first component (100) with the inner thread (101).

9. The assembly of claim 1, wherein The portion of the clamping component (400) outside the curved surface (302) comprises at least a portion with a straight line in a radial direction of the second component (200).

10. The assembly of claim 1, wherein ​

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