Nut assembly

Abstract

The present disclosure provides a nut assembly, comprising: a threaded connecting member comprising a threaded hole; a housing comprising a receiving hole configured to receive the threaded connecting member, wherein an outer peripheral wall of the threaded connecting member and an inner wall of the receiving hole are shaped to match each other such that the threaded connecting member and the receiving hole are non-rotatably engaged with each other. The nut assembly of the present disclosure adopts an integrated design, which not only reduces the manufacturing steps of the assembly, lowers the production cost, but also improves the overall structural stability.

Description

Technical Field

[0001] This disclosure relates to the field of mechanical parts, and more specifically, to a nut assembly. Background Technology

[0002] The background description provided herein is intended to present the general context of this disclosure. To the extent described in this background section, the work of the currently identified inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art to this disclosure.

[0003] In the automotive manufacturing industry, connecting components, especially waterproof nut assemblies, are essential basic elements for ensuring the sealing and structural stability of critical parts of a vehicle. Currently, the nut assemblies widely used in the industry are typically made by riveting two metal parts together and then attaching foam; these nuts are waterproof. Utility Model Content

[0004] Through in-depth research, the inventors discovered that existing nut assemblies suffer from at least the following shortcomings. First, the need for additional foam material and bonding processes complicates the manufacturing process and increases costs. Second, the elasticity of the foam creates a soft connection between the nut and the connector, which can lead to decreased torque transmission efficiency over long-term use. Especially in environments with vibration or frequent stress, the elasticity of the foam can cause the nut to loosen, reducing connection stability. Finally, while riveting is robust, it requires additional molds and equipment, increasing manufacturing difficulty. Furthermore, the foam bonding method is prone to failure due to aging or environmental factors over long-term use, resulting in decreased waterproofing and inconvenient repair or replacement.

[0005] The purpose of this disclosure is to address at least one aspect of the aforementioned problems and / or defects existing in the prior art.

[0006] One aspect of this disclosure provides a nut assembly that may include: a threaded connection member; and a housing that may include a receiving hole configured to receive the threaded connection member, wherein the outer peripheral wall of the threaded connection member matches the inner wall shape of the receiving hole such that the threaded connection member and the receiving hole engage with each other in a non-rotatable manner.

[0007] According to an exemplary embodiment of the present disclosure, the threaded connection member may include a threaded hole, and the inlet end of the threaded hole may have a mating end face, the mating end face extending axially beyond the end face of the housing.

[0008] According to an exemplary embodiment of the present disclosure, the threaded connection member may be provided with a flange extending radially outward along the threaded hole at the outlet end of the threaded hole, and the housing may be provided with an engaging portion for engaging with the flange, the engaging portion being located on one side of the outlet end of the threaded hole and being arranged circumferentially around the flange.

[0009] According to an exemplary embodiment of the present disclosure, each of the engaging portions may include an elastic beam capable of elastic deformation along the radial direction of the receiving hole, the elastic beam being located on a side away from the inlet end of the threaded hole relative to the flange to prevent outward movement of the flange along the axis of the threaded hole.

[0010] According to an exemplary embodiment of the present disclosure, the elastic beam may have an inner edge, the distance between the inner edge and the axis of the receiving hole along the radial direction of the receiving hole may be less than the outer circumferential radius of the flange, and the difference between the distance and the outer circumferential radius of the flange may be less than or equal to the maximum deformation limit of the elastic beam along the radial direction of the receiving hole.

[0011] According to an exemplary embodiment of the present disclosure, the surface of the elastic beam facing the axis of the receiving hole may be inclined relative to the axis of the receiving hole, and the distance between the inner edge of the elastic beam and the axis of the receiving hole may be less than the distance between the top of the elastic beam and the axis of the receiving hole.

[0012] According to an exemplary embodiment of the present disclosure, the at least two engaging portions may include a first engaging portion and a second engaging portion located on opposite sides of the receiving hole, respectively.

[0013] According to an exemplary embodiment of the present disclosure, the outer peripheral wall of the threaded connection member may have a polygonal cross-section, and the cross-sectional shape of the receiving hole is the same as the cross-sectional shape of the outer peripheral wall of the threaded connection member. According to an exemplary embodiment of the present disclosure, the housing may further include a sealing structure located on the side opposite to the engaging portion. The sealing structure may include a first and a second resilient, annular first and second baffle extending around the receiving hole. The second baffle may be located radially inside the first baffle in the receiving hole, and the first and second baffles may extend axially above the engagement end face of the threaded connection member in the threaded hole.

[0014] According to an exemplary embodiment of this disclosure, the first retaining wall may be higher than the second retaining wall in the axial direction of the receiving hole.

[0015] According to an exemplary embodiment of the present disclosure, the housing may further include a boss located on one side of the sealing structure, the end face of the boss being the end face of the housing, the boss being located radially inside the sealing structure, the boss and the sealing structure being separated radially from the receiving hole by an annular groove, and the second baffle being axially higher than the end face of the boss in the receiving hole.

[0016] According to an exemplary embodiment of the present disclosure, when the nut assembly is in a locked working state, the top surfaces of the first and second retaining walls can be compressed axially in the receiving hole to be in the same plane position as the engagement end face of the threaded connection member.

[0017] According to an exemplary embodiment of the present disclosure, when the nut assembly is in a locked working state, the deformation of the first retaining wall in the axial direction of the receiving hole can be greater than the deformation of the second retaining wall in the axial direction of the receiving hole.

[0018] According to an exemplary embodiment of this disclosure, the hardness of the housing may be lower than the hardness of the threaded connection member.

[0019] The disclosed nut assembly adopts an integrated design, avoiding the complex processes of riveting metal parts and bonding foam in existing technologies. This not only reduces the number of manufacturing steps and lowers production costs but also improves the overall structural stability. A rigid connection is achieved between the nut assembly and the connector, ensuring stable torque transmission efficiency during long-term use. Compared to existing foam-based waterproofing methods, this design achieves more reliable waterproofing by creating a retaining wall, providing longer-lasting waterproofing performance under dynamic loads or complex operating conditions.

[0020] These and other aspects of this disclosure will become apparent from the following description of preferred embodiments in conjunction with the accompanying drawings and description, but variations and modifications may be made thereto without departing from the spirit and scope of the novel concept of this disclosure. Attached Figure Description

[0021] This disclosure will be more fully understood from the detailed description and accompanying drawings. These drawings illustrate one or more embodiments of this disclosure and, together with the written description, serve to explain the principles of this disclosure. Where possible, the same reference numerals are used throughout the drawings to denote the same or similar elements of the embodiments, and wherein:

[0022] Figure 1 This is a perspective structural schematic diagram of a nut assembly according to an exemplary embodiment of the present disclosure, showing the threaded connection member and housing in an assembled state as seen from the outlet side.

[0023] Figure 2This is another perspective structural schematic diagram of a nut assembly according to an exemplary embodiment of the present disclosure, showing the threaded connection member and housing in an assembled state as seen from the inlet side.

[0024] Figure 3 This is an exploded view of a nut assembly according to an exemplary embodiment of the present disclosure, wherein the threaded connection member and the housing are in a state before assembly.

[0025] Figure 4 This is a three-dimensional structural schematic diagram of a threaded connection member in a nut assembly according to an exemplary embodiment of the present disclosure.

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the outlet side of the housing in a nut assembly according to an exemplary embodiment of the present disclosure.

[0027] Figure 6 This is a three-dimensional structural schematic diagram of the inlet side of the housing in the nut assembly according to an exemplary embodiment of the present disclosure.

[0028] Figure 7 This is a schematic cross-sectional view of the housing in a nut assembly according to an exemplary embodiment of the present disclosure, wherein the colored portion shows the cross-section of the housing.

[0029] Figure 8 This is another schematic cross-sectional view of the housing in a nut assembly according to an exemplary embodiment of the present disclosure, wherein the colored portion shows the cross-section of the housing.

[0030] Figure 9 This is a schematic cross-sectional view of a nut assembly according to an exemplary embodiment of the present disclosure, wherein the colored portion shows the cross-section of the housing and the threaded connection member.

[0031] Figure 10 This is a top view of a nut assembly according to an exemplary embodiment of the present disclosure, showing the size of the engagement portion and the flange of the threaded connection member.

[0032] Figure 11 This is a schematic diagram of a nut assembly in use according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0033] The present disclosure will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the present disclosure. However, the present disclosure may be implemented in various ways and should not be construed as limited to the embodiments described herein. These embodiments are provided to make the disclosure more thorough and complete, and to fully convey the scope of the disclosure to those skilled in the art. In the drawings, the thickness and area of ​​layers may be enlarged for clarity. Throughout the specification, the same reference numerals are used to denote the same elements. For different embodiments, elements may have different relationships and different positions.

[0034] Figures 1 to 3 The main illustration shows a three-dimensional structural diagram of the nut assembly, including the threaded connection component and the housing, before and after assembly. Figure 1 and Figure 2 This refers to the state in which the threaded connection components are assembled into the housing. Figure 3 This is the state before the threaded connection components and the housing are assembled.

[0035] This disclosure discloses a nut assembly 1, comprising: a threaded connecting member 10; and a housing 20 including a receiving hole 201 configured to receive the threaded connecting member 10. The outer peripheral wall 102 of the threaded connecting member 10 is shaped to match the inner wall 202 of the receiving hole 201, thereby allowing the threaded connecting member 10 and the receiving hole 201 to engage with each other in a non-rotatable manner. As an example, the axis of the receiving hole 201 may be parallel to the axis of the threaded hole 105.

[0036] Compared to existing nut assemblies, the nut assembly 1 of this disclosure replaces the nut with foam using only two components, simplifying the manufacturing process, shortening the production cycle, significantly reducing production costs, and simplifying maintenance. The nut assembly 1 of this disclosure includes a cooperating threaded connection member 10 and a housing 20, with each component forming an integrated structure, improving overall structural stability. Furthermore, a rigid connection is achieved, maintaining stable torque transmission efficiency. Compared to existing foam-based waterproofing methods, the nut assembly 1 of this disclosure provides more durable waterproofing performance under dynamic loads or complex working conditions. As an example, the hardness of the housing 20 can be lower than that of the threaded connection member 10, which allows the housing 20 to have better elastic deformation capacity relative to the threaded connection member 10, thus providing greater flexibility in structural design.

[0037] For ease of description, the threaded hole 105 in the threaded connection member 10 is used as a reference. The end where the screw or bolt enters the threaded hole 105 is called the inlet end 103, and the other end where the screw or bolt protrudes through the threaded connection member 10 is called the outlet end 104. Figure 1 and Figure 2As shown.

[0038] Figure 4 This schematically illustrates the threaded connection member 10 in the nut assembly 1. For example... Figure 4 As shown, the threaded connection member 10 includes a flange 101, a threaded body 107, and a threaded hole 105 passing through the flange 101 and the threaded body 107. As shown, the flange 101 is located at the outlet end 104 of the threaded hole 105, and the threaded body 107 is located at the inlet end 103 of the threaded hole 105.

[0039] In embodiments of this disclosure, such as Figure 9 As shown, the threaded connection member 10 includes a threaded hole 105 and has a mating end face 106 at the inlet end 103, which can be used with the component 40 to be fixed (e.g., ...). Figure 11 (As shown in the diagram) direct contact is made. After the threaded connection member 10 is assembled with the housing 20, the mating end face 106 extends axially beyond the end face of the housing 20 in the threaded hole 105, particularly the boss 211 of the housing 20 adjacent to the threaded connection member 10. Therefore, when assembled with other components, for example when the part to be fixed is a metal plate, the threaded connection member 10 can still make hard contact with the part to be assembled.

[0040] like Figures 1 to 4 As shown, the flange 101 located at the outlet end 104 of the threaded connection member 10 extends radially from the threaded body 107 along the threaded hole 105. As an example, the flange 101 is approximately disk-shaped and its thickness is much smaller than that of the threaded body 107. This design makes the overall structure of the threaded connection member 10 more compact while maintaining good mechanical properties.

[0041] Continue to refer to Figure 4 As shown, the nut body 107 is located at the inlet end 103 of the threaded connection member 10. The outer peripheral wall 102 of the nut body 107 can be polygonal, such as hexagonal or quadrilateral. That is, the outer peripheral wall 102 of the threaded connection member 10 has a polygonal cross-section. The polygonal structure facilitates the mating of the threaded connection member 10 and the housing 20. In other words, the shape of the cross-section of the outer peripheral wall 102 of the nut body 107 is the same as the cross-sectional shape of the receiving hole 201, thereby forming a non-rotatable connection.

[0042] A threaded hole 105 is provided at the center of the threaded connection component 10, and the threaded hole penetrates the entire threaded connection component 10. For example... Figure 4 and 9As shown, a circular threaded hole is preferred. The thread in this threaded hole can be a standard thread, thus matching the screw component, allowing the screw shank to pass through the threaded hole and achieve a threaded connection. Each surface of the outer peripheral wall 102 of the nut body 107 is a plane, and the intersection between adjacent surfaces is set as an arc to reduce stress concentration. That is, for the cross-section of the threaded connection component 10, the intersection of each side is designed as a rounded corner, so that the threaded connection component 10 can evenly distribute stress when under force, thereby improving its fatigue resistance.

[0043] As an example, the hardness of the threaded connection member 10 is higher than that of the housing 20. For example, the material of the threaded connection member 10 can be a metal, such as high-strength steel or stainless steel, while the material of the housing 20 can be a plastic, such as polyoxymethylene.

[0044] Figures 5 to 10 The housing 20 in the nut assembly 1 and its cross-sectional view are schematically shown from different angles.

[0045] In embodiments of this disclosure, such as Figures 5 to 10 As shown, the housing 20 has at least two engaging portions 204 and 205 for engaging with the flange 101 and a recessed portion 206 for accommodating the flange 101 of the threaded connection member 10 at one end. A sealing structure is provided at the opposite end of the housing 20, and guide grooves 208 are provided on all four sides of the outer periphery of the housing 20, recessed radially inward along the threaded hole 105. A receiving hole 201, which is a through hole, is provided at the center of the housing 20.

[0046] like Figures 5 to 10 As shown, the engaging portions 204 and 205 include elastic beams 2041 and 2051 that are capable of radial elastic deformation along the receiving hole 201. The elastic beams are located on the side of the flange 101 away from the inlet end 103 of the threaded hole 105 to prevent the flange 101 from moving outward along the axis of the threaded hole 105.

[0047] To be more specific, such as Figure 5 , Figure 7 , Figure 8-10 As shown, the engaging portions 204 and 205 are generally rod-shaped, with both ends connected to the top of the housing 20. Alternatively, they can be connected to the connecting portion 213 at this end of the housing 20 to increase structural stability. For example, the elastic beams 2041 and 2051 and the connecting portion 213 are integrally formed with the housing 20. Since the material of the housing 20 allows the elastic beams 2041 and 2051 to elastically deform, the flange 101 of the threaded connection member 10 can be constrained under the elastic beams.

[0048] like Figure 10As shown, the elastic beams 2041 and 2051 have inner edges 20411 and 20511. The distance L3 between the inner edges 20411 and 20511 along the radial direction of the receiving hole 201 and the axis of the receiving hole 201 is less than the outer circumferential radius R of the flange 101. The difference between the distance and the outer circumferential radius R of the flange 101 is less than or equal to the maximum deformation limit of the elastic beams 2041 and 2051 along the radial direction of the receiving hole 201. This allows the flange 101 of the threaded connection member 10 to be easily and conveniently installed into the housing 20.

[0049] In other words, since the elastic beams 2041 and 2051 can deform, in the radial direction of the receiving hole 201, the difference between the distance L3 between the inner edges 20411 and 20511 of the elastic beams 2041 and 2051 and the axis of the receiving hole 201 and the outer circumferential radius R of the flange 101 is less than the maximum deformation limit of the elastic beams 2041 and 2051. Therefore, by means of the deformation of the elastic beams 2041 and 2051, the threaded connecting member 10 can be inserted between the two elastic beams 2041 and 2051 and placed below the two elastic beams 2041 and 2051, thereby installing the threaded connecting member 10 onto the housing 20. In the radial direction of the receiving hole 201, the distance between the inner edges 20411 and 20511 of the elastic beams 2041 and 2051 and the axis of the receiving hole 201 is less than the outer circumferential radius R of the flange 101. Thus, the two elastic beams 2041 and 2051 can lock the flange 101 of the threaded connection member 10 in the radial direction of the flange 101, thus completing the installation conveniently and quickly.

[0050] like Figure 5 , Figure 7 and Figure 8 As shown, the surfaces of the elastic beams 2041 and 2051 facing the axis of the receiving hole 201 are inclined relative to the axis of the receiving hole 201. The distance between the inner edges 20411 and 20511 of the elastic beams 2041 and 2051 and the axis of the threaded hole 105 is less than the distance between the top of the elastic beams 2041 and 2051 and the axis of the threaded hole 105. In other words, in the direction of the axis of the receiving hole 201, the width of the elastic beams 2041 and 2051 gradually increases from their top downwards.

[0051] like Figure 1-3 as well as Figure 5-10The groove 206 is located on the surface of the housing 20 on one side of the outlet end 104 of the receiving hole 201 (which, after assembly, is the outlet end 104 of the receiving hole 201, is the outlet end of the threaded hole), and its shape matches the shape of the flange 101 of the threaded connection member 10. The bottom surface of the elastic beam is higher than the top surface of the groove 206 in the axial direction of the receiving hole 201, so that the engaging parts 204 and 205 can bind the threaded connection member 10 after it is inserted into the receiving hole 201. The surface of the housing 20 where the connecting part 213 is located can be no lower than the bottom surface of the elastic beams 2041 and 2051. The receiving hole 201 can be a polygonal through hole, for example, a hexagonal one, with each side surface of the through hole being a plane to ensure a tight fit with the nut body 107 of the threaded connection member 10. Similarly, the receiving hole 201 can be a hexagonal through hole, and the intersection of each face of the receiving hole 201 can be set as an arc transition.

[0052] The engaging portions 204 and 205 are located on one side of the outlet end 104 of the receiving hole 201 and are distributed circumferentially relative to the flange 101. That is, at least two engaging portions are provided at one end of the housing 20. Preferably, two engaging portions 204 and 205 are provided, and the two engaging portions 204 and 205 are arranged face to face, surrounding the receiving hole 201.

[0053] In another embodiment, the two engaging portions are arranged opposite each other relative to the receiving hole, and the engaging portions may have a beveled surface on the side facing each other, that is, the side of the engaging portion near the receiving hole is a beveled surface. For example, a beveled surface with a certain curvature can be formed. Preferably, the engaging portion and the connecting portions at both ends together form a complete curved beveled surface on the side near the receiving hole, thereby facilitating the installation of the threaded connection component.

[0054] In embodiments of this disclosure, such as Figure 5-8 As shown, the engaging portions 204 and 205 also include through grooves formed below the bottom surfaces of the elastic beams 2041 and 2051. The top surface 2071 of the through groove is the bottom surface of the elastic beams 2041 and 2051, and the bottom surface of the elastic beams 2041 and 2051 is lower than the top surface of the recess 206 in the axial direction of the receiving hole 201. In other words, in the axial direction of the receiving hole 201, the bottom surface of the through groove is lower than the top surface of the recess 206. Although the elastic beams 2041 and 2051 are provided, the height of the entire housing 20 can still be reduced due to the through grooves.

[0055] In embodiments of this disclosure, such as Figure 5-10As shown, the housing 20 also includes a sealing structure located on the opposite side of the engagement portion, i.e., the sealing structure is located on the same side as the inlet end 103 of the threaded connection member 10. The sealing structure includes at least two baffles, for example, a first baffle 209 and a second baffle 210, which extend around the receiving hole 201 and are both elastically annular in shape. The second baffle 210 is located radially inside the first baffle 209 of the receiving hole 201. The first baffle 209 is axially higher than the second baffle 210 of the receiving hole 201. The first baffle 209 and the second baffle 210 are axially higher than the engagement end face 106 of the threaded connection member 10 in the threaded hole 105.

[0056] In embodiments of this disclosure, such as Figure 5-10 As shown, the housing 20 also includes a boss 211 located on one side of the sealing structure. The end face 2111 of the boss 211 is the end face 203 of the housing 20. The boss 211 is located on the radial inner side of the sealing structure. The boss 211 and the sealing structure are separated by an annular groove 212 in the radial direction of the receiving hole 201. The second baffle 210 is higher than the end face 2111 of the boss 211 in the axial direction of the receiving hole 201.

[0057] As an example, the width of the first retaining wall 209 in the radial direction of the receiving hole 201 is smaller than the width of the second retaining wall 210 in the radial direction of the receiving hole 201. As an example, the height difference L1 between the top surface of the second retaining wall 210 and the end face 2111 of the boss 211 is 0.1-0.3 mm, for example, 0.2 mm. As an example, the height difference L2 between the top surface of the first retaining wall 209 and the end face 2111 of the boss 211 is 0.3-0.5 mm, for example, 0.4 mm. This structural design allows the retaining walls to undergo elastic deformation under external pressure, forming an effective sealing barrier.

[0058] When using the nut assembly 1, in the locked working state, the top surfaces of the first retaining wall 209 and the second retaining wall 210 are compressed axially in the receiving hole 201 to be in the same plane as the mating end face 106 of the threaded connection member 10. When the nut assembly 1 is in the locked working state, the deformation of the first retaining wall 209 in the axial direction of the receiving hole 201 is greater than that of the second retaining wall 210 in the axial direction of the receiving hole 201, thereby achieving a dynamic sealing function for the nut connection member while also ensuring installation stability and waterproof performance.

[0059] In another embodiment of this disclosure, the housing is provided with multiple baffles, with the height of the outermost baffle protruding from the housing surface successively higher than the height of the inner baffles. In other words, multiple baffles can be formed at the end of the housing opposite to the engaging portion, forming sequentially outward from the boss along the radial direction of the receiving hole. The width of the outer baffle is greater than the width of the inner baffle, and the height of the outer baffle is also greater than the height of the inner baffle. A groove can be formed between the innermost baffle and the boss, so that the outer baffle is most easily deformed when the housing is subjected to pressure from an external component. When the sealing structure of the housing is compressed, the outer baffle often needs to have a greater amount of deformation than the inner baffle in the axial direction of the receiving hole 201. By adopting this structure where the axial height of the outer baffle is greater than that of the inner baffle, more space can be provided for the deformation of the outer baffle, thereby improving the sealing effect. As the pressure on the housing increases, the inner baffles deform sequentially, thereby achieving a multi-level waterproof effect.

[0060] In one embodiment of this disclosure, such as Figure 5-10 As shown, guide grooves 208 are provided on all four sides of the outer periphery of the housing 20, recessed radially inward along the threaded hole 105. A ring of guide grooves 208 is formed around the outer periphery of the housing 20 between the end forming the engaging portion and the end forming the sealing structure. Left and right channels, as well as front and rear channels, are formed in all four directions of the housing 20, and these channels are interconnected to form guide grooves 208, allowing the housing 20 with the threaded connection member 10 assembled to slide onto the component 50 to be assembled. The surface of the guide grooves 208 is flat, allowing assembly to be performed with a simple sliding operation, simplifying the assembly process and adapting to various installation scenarios.

[0061] like Figure 11 As shown, after the threaded connection member 10 and the housing 20 in the nut assembly 1 of this disclosure are assembled, they are slidably assembled onto the part 50 to be assembled through the channel on the housing 20. After the part 40 to be fixed is covered, the screw member 30 is screwed into the part 40 to be fixed and the threaded connection member 10, thereby achieving rapid assembly.

[0062] The following is a reference to the appendix. Figure 11 Describe the assembly process of the nut assembly 1.

[0063] During the assembly of the nut assembly 1, the operator can press the threaded connecting member 10 axially into the receiving hole 201 of the housing 20 along its threaded hole 105. The elastic deformation of the engaging portion along the radial direction of the receiving hole 201 allows the flange 101 of the threaded connecting member 10 to pass over the engaging portion and be embedded in the through groove. Because the external contour of the nut body 107 forms a circumferential anti-rotation constraint with the inner wall 202 of the receiving hole 201, the nut body 107 is fixed in the circumferential direction. Due to the constraint of the elastic beams 2041 and 2051 in the axial direction of the receiving hole 201, the receiving hole 201 of the nut body 107 is fixed in the axial direction.

[0064] Subsequently, the housing 20 is pushed along the guide groove 208 of the housing 20. The precise fit between the guide groove 208 and the component 50 to be assembled enables rapid positioning. The component 40 to be fixed is then covered. Finally, the screw component 30 is screwed into the threaded hole 105 of the component 40 to be fixed and the threaded connection component 10. After applying a certain preset torque, the initial tightening is completed. The first retaining wall 209 and the second retaining wall 210 are compressed and deformed in the axial direction of the receiving hole 201, achieving a multi-level waterproof effect.

[0065] The terminology used herein is for illustrative purposes only and should not be construed as limiting the meaning or scope of this disclosure. As used herein, the singular form may include the plural form unless a specific example is clearly indicated in the context. Furthermore, the expressions “comprising” and / or “including” as used herein do not limit the shapes, numbers, steps, operations, components, elements, and / or groups thereof mentioned, nor do they exclude the appearance or inclusion of one or more other different shapes, numbers, steps, operations, components, elements, and / or groups thereof, or inclusion thereof.

[0066] As used herein, terms such as “first,” “second,” etc., are used to describe various components, assemblies, regions, and / or parts. These terms are used only to distinguish one component, assembly, region, layer, or part from another component, assembly, region, or part. Therefore, the description of a first component, assembly, region, layer, or part may also refer to a second component, assembly, region, or part without departing from the scope of this disclosure.

[0067] The foregoing description of exemplary embodiments of this disclosure is for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit this disclosure to the precise forms disclosed. Many modifications and variations are possible in accordance with the foregoing teachings. The embodiments were chosen and described to explain the principles of this disclosure and its practical application, so that others skilled in the art can utilize this disclosure and various embodiments with various modifications suitable for the particular purpose contemplated. Alternative embodiments will become apparent to those skilled in the art to which this disclosure pertains without departing from the spirit and scope of this disclosure. Therefore, the scope of this disclosure is defined by the appended claims rather than by the foregoing description and the exemplary embodiments described therein.

Claims

1. A nut assembly, characterized in that, The nut assembly includes: Threaded connection components; The housing includes a receiving hole configured to receive the threaded connection member. The outer peripheral wall of the threaded connecting member matches the inner wall shape of the receiving hole, so that the threaded connecting member and the receiving hole are engaged with each other in a non-rotatable manner.

2. The nut assembly as claimed in claim 1, characterized in that, The threaded connection member includes a threaded hole, and the threaded connection member has a mating end face at the inlet end of the threaded hole, the mating end face extending axially beyond the end face of the housing.

3. The nut assembly as described in claim 2, characterized in that, The threaded connection member has a flange extending radially outward along the threaded hole at the outlet end of the threaded hole, and the housing has an engaging part for engaging with the flange. The engaging part is located on one side of the outlet end of the threaded hole and is arranged circumferentially around the flange.

4. The nut assembly as described in claim 3, characterized in that, Each of the engaging portions includes an elastic beam capable of elastic deformation along the radial direction of the receiving hole, the elastic beam being located on the side of the flange away from the inlet end of the threaded hole to prevent the flange from moving outward along the axis of the threaded hole.

5. The nut assembly as claimed in claim 4, characterized in that, The elastic beam has an inner edge, the distance between the inner edge and the axis of the receiving hole along the radial direction of the receiving hole is less than the outer circumferential radius of the flange, and the difference between the distance and the outer circumferential radius of the flange is less than or equal to the maximum deformation limit of the elastic beam along the radial direction of the receiving hole.

6. The nut assembly as claimed in claim 5, characterized in that, The surface of the elastic beam facing the axis of the receiving hole is inclined relative to the axis of the receiving hole, and the distance between the inner edge of the elastic beam and the axis of the receiving hole is less than the distance between the top of the elastic beam and the axis of the receiving hole.

7. The nut assembly as described in any one of claims 3 to 6, characterized in that, The engaging portion includes a first engaging portion and a second engaging portion located on opposite sides of the receiving hole.

8. The nut assembly as claimed in any one of claims 2 to 6, characterized in that, The housing also includes a sealing structure located on the opposite side of the engagement portion. The sealing structure includes a first and a second resilient, annular first and second retaining walls extending around the receiving hole. The second retaining wall is located radially inside the first retaining wall of the receiving hole. The first and second retaining walls are axially higher than the engagement end face of the threaded connection member of the threaded hole.

9. The nut assembly as claimed in claim 8, characterized in that, The first retaining wall is higher than the second retaining wall in the axial direction of the receiving hole.

10. The nut assembly as claimed in claim 8, characterized in that, The housing also includes a boss located on one side of the sealing structure, the end face of the boss being the end face of the housing, the boss being located radially inside the sealing structure, the boss and the sealing structure being separated radially from the receiving hole by an annular groove, and the second retaining wall being axially higher than the end face of the boss in the receiving hole.

11. The nut assembly as claimed in claim 8, characterized in that, When the nut assembly is in the locked working state, the top surfaces of the first and second retaining walls are compressed axially in the receiving hole to be in the same plane position as the engagement end face of the threaded connection member.

12. The nut assembly as claimed in claim 11, characterized in that, When the nut assembly is in the locked working state, the deformation of the first retaining wall in the axial direction of the receiving hole is greater than the deformation of the second retaining wall in the axial direction of the receiving hole.

13. The nut assembly as claimed in any one of claims 9 to 12, characterized in that, The hardness of the housing is lower than that of the threaded connection component.

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