Nut mounting structure and vehicle
By designing the limiting holes and cavity in the nut installation structure to limit the nut displacement, the problem of convex welding nut slip wire or collapse is solved, and a low-cost and short-cycle maintenance solution is achieved.
Patent Information
- Application Number
- CN202510588216.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-07-22
AI Technical Summary
In the prior art, the convex weld nut is prone to slip or collapse during frequent disassembly, resulting in the inability to replace or repair twice, increasing the maintenance cost and cycle.
A nut installation structure is designed, including a nut mounting plate, a nut limiting plate and a movable nut. Through the coordination of the limiting hole and cavity, the radial and axial displacement of the nut is limited, allowing the replacement of the movable nut and avoiding the replacement of the entire part.
It realizes that when the nut slip wire or collapses, you only need to replace the movable nut to reduce the maintenance cost and shorten the maintenance cycle, and the maintenance process is simple and efficient.
Smart Images
Figure CN120351233A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of vehicle assembly, and particularly relates to a nut installation structure and a vehicle. Background Art
[0002] In the mechanical and automotive industries, a common way of matching bolts and nuts is the cooperation of projection-welded nuts and bolts, which is commonly used in automotive body and chassis system parts. For parts that need to be frequently disassembled, after the number of disassembly times increases, the corresponding projection-welded nuts are extremely prone to damage such as thread stripping, and the nuts cannot be replaced or repaired twice after being damaged. Summary of the Invention
[0003] The purpose of the present invention is to provide a nut installation structure and a vehicle, so that even if the movable nut is stripped or damaged, the repair can be completed by replacing the movable nut, without replacing the part where the movable nut is located, and the repair cost is low and the repair cycle is short.
[0004] The first aspect of the present invention discloses a nut installation structure, including: a nut installation plate, a nut limiting plate and a movable nut. The nut installation plate is provided with a bolt through-hole; the nut limiting plate is detachably connected to the nut installation plate, a cavity is provided between the nut limiting plate and the nut installation plate, the nut limiting plate is provided with a limiting hole, the limiting hole communicates with the inside and outside of the cavity, and the limiting hole is oppositely arranged with the bolt through-hole; the movable nut includes a limiting section and a connecting section, the diameter of the limiting section is smaller than that of the connecting section, the outer diameter of the connecting section is larger than the diameter of the bolt through-hole, and the outer diameter of the connecting section is larger than the diameter of the limiting hole, and the limiting section passes through the limiting hole.
[0005] In an exemplary embodiment, the movable nut includes a first threaded hole section and a second threaded hole section, and the first threaded hole section is closer to the bolt through-hole than the second threaded hole section; the diameter of the first threaded hole section gradually decreases from the direction of the bolt through-hole towards the direction of the second threaded hole section.
[0006] In an exemplary embodiment, the height of the connecting section in the cavity is smaller than the height of the cavity.
[0007] In an exemplary embodiment, the total length of the movable nut is greater than the height of the cavity and the thickness of the nut limiting plate.
[0008] In an exemplary embodiment, the diameter of the limiting hole is larger than the outer diameter of the limiting section.
[0009] In an exemplary embodiment, the nut installation plate is in a "C" shape.
[0010] In an exemplary embodiment, the bolt through-hole is located in the middle area of the nut mounting plate.
[0011] In an exemplary embodiment, the nut limiting plate and the nut mounting plate are detachably connected by a nut cooperating with the bolt.
[0012] In an exemplary embodiment, the nut is welded to the nut limiting plate.
[0013] A second aspect of the present invention discloses a vehicle, including a vehicle body main body and the above-mentioned nut mounting structure, and the nut mounting structure is connected to the vehicle body main body.
[0014] The solution of the present invention has the following beneficial effects:
[0015] In the present invention, since the limiting section of the movable nut passes through the limiting hole of the nut limiting plate, the radial displacement of the movable nut can be restricted by the hole wall of the limiting hole; at the same time, the connecting section is located in the cavity between the nut mounting plate and the nut limiting plate, and the outer diameter of the connecting section is larger than the diameter of the limiting hole and larger than the diameter of the bolt through-hole, so as to prevent the movable nut from axially displacing out of the cavity. Therefore, when using the nut mounting plate, only need to fix the nut mounting plate or the nut limiting plate, and then pass the bolt through the bolt through-hole and into the movable nut. If the movable nut needs to be replaced, only need to disassemble the nut mounting plate and the nut limiting plate, open the cavity, and take out the movable nut.
[0016] In summary, when the nut mounting structure is connected to the bolt, if the bolt is in a working condition that requires frequent loading and unloading, even if the movable nut slips or breaks, the repair can be completed by replacing the movable nut, without replacing the parts where the movable nut is located, with low repair cost and short repair cycle.
[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them, the drawings here are used to represent the inventive concept of the present application and are not completely equivalent to the structure of the actual product protected by the present application.
[0019] Figure 1 The side view structural schematic diagram of the nut mounting structure in the embodiment of the present invention is shown.
[0020] Figure 2 Shows a schematic cross-sectional structure diagram of the nut mounting structure in an embodiment of the present invention.
[0021] Figure 3 Shows a schematic bottom view structure diagram of the nut mounting structure in an embodiment of the present invention.
[0022] Figure 4 Shows a schematic top view structure diagram of the nut mounting structure in an embodiment of the present invention.
[0023] Figure 5 Shows a schematic three-dimensional structure diagram of the nut mounting structure in an embodiment of the present invention.
[0024] Figure 6 Shows a schematic three-dimensional structure diagram of the nut mounting plate in an embodiment of the present invention.
[0025] Figure 7 Shows a schematic three-dimensional structure diagram of the nut limiting plate in an embodiment of the present invention.
[0026] Figure 8 Shows a schematic three-dimensional structure diagram of the movable nut in an embodiment of the present invention.
[0027] Description of reference numerals:
[0028] 10. Nut mounting plate; 101. Bolt through-hole; 20. Nut limiting plate; 201. Limiting hole; 30. Movable nut; 31. Limiting section; 32. Connecting section; 301. First threaded hole section; 302. Second threaded hole section; 40. Projection welding nut; a. Cavity. Detailed implementation manners
[0029] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.
[0030] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.
[0031] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation of the present application.
[0032] Combined with Figures 1 to 8 As shown, this embodiment provides a nut mounting structure for mounting body parts.
[0033] As Figure 1 As shown, the nut mounting structure includes a nut mounting plate 10. The nut mounting plate 10 is provided with a bolt through-hole 101 for a bolt to pass through.
[0034] In this embodiment, the bolt through-hole 101 penetrates the nut mounting plate 10. The radius of the bolt through-hole 101 is 5 mm larger than the inner diameter of the movable nut 30, which is used to absorb errors and facilitate installation.
[0035] Combined with Figures 1 to 4 As shown, the nut mounting structure further includes a nut limiting plate 20. The nut limiting plate 20 is detachably connected to the nut mounting plate 10. A cavity a is provided between the nut limiting plate 20 and the nut mounting plate 10. The nut limiting plate 20 is provided with a limiting hole 201. The limiting hole 201 communicates with the inside and outside of the cavity a. The limiting hole 201 is disposed opposite to the bolt through-hole 101.
[0036] In this embodiment, the limiting hole 201 penetrates the nut limiting plate 20. The limiting hole 201 is coaxially disposed with the bolt through-hole 101.
[0037] The nut mounting structure further includes a movable nut 30. The movable nut 30 includes a limiting section 31 and a connecting section 32. The diameter of the limiting section 31 is smaller than that of the connecting section 32. The outer diameter of the connecting section 32 is larger than the diameter of the bolt through-hole 101, and the outer diameter of the connecting section 32 is larger than the diameter of the limiting hole 201. The limiting section 31 is inserted into the limiting hole 201.
[0038] In this embodiment, the radius of the limiting hole 201 is 5 mm larger than the outer diameter of the limiting section 31 of the movable nut 30, which enables the movable nut 30 to move on a plane parallel to the nut mounting plate 10, and the movement range is 5 mm on one side. Among them, this hole is both a through-hole and a limiting hole 201.
[0039] In the present invention, since the limiting section 31 of the movable nut 30 passes through the limiting hole 201 of the nut limiting plate 20, the radial displacement of the movable nut 30 can be restricted by the hole wall of the limiting hole 201. At the same time, the connecting section 32 is located in the cavity a between the nut mounting plate 10 and the nut limiting plate 20, and the outer diameter of the connecting section 32 is larger than the diameter of the limiting hole 201 and also larger than the diameter of the bolt through hole 101, so as to prevent the movable nut 30 from axially displacing out of the cavity a. Therefore, when the nut mounting plate 10 is in use, only need to fix the nut mounting plate 10 or the nut limiting plate 20, and then pass the bolt through the bolt through hole 101 and into the movable nut 30. If the movable nut 30 needs to be replaced, only need to disassemble the nut mounting plate 10 and the nut limiting plate 20, open the cavity a, and take out the movable nut 30.
[0040] In summary, when the nut mounting structure is connected to the bolt, if the bolt is in a working condition that requires frequent loading and unloading, even if the movable nut 30 slips or breaks, the repair can be completed by replacing the movable nut 30, without the need to replace the parts where the movable nut 30 is located, with low repair cost and short repair cycle.
[0041] Further, the movable nut 30 includes a first threaded hole section 301 and a second threaded hole section 302. The first threaded hole section 301 is closer to the bolt through hole 101 than the second threaded hole section 302. The diameter of the first threaded hole section 301 gradually decreases from the direction of the bolt through hole 101 towards the direction of the second threaded hole section 302, so as to play a guiding role when the bolt is installed in the movable nut 30.
[0042] Further, the height of the connecting section 32 in the cavity a is less than the height of the cavity a, so that the movable nut 30 can move in a direction perpendicular to the nut limiting plate 20.
[0043] For example, the height of the connecting section 32 in the cavity a is 3 mm less than the height of the cavity a.
[0044] It should be understood that the height in the cavity a refers to the distance value between the nut mounting plate 10 and the nut limiting plate 20. Among them, the height of the connecting section 32 in the cavity a being less than the height of the cavity a means that the distance between the top surface of the connecting section 32 facing the nut mounting plate 10 and the bottom surface of the connecting section 32 facing the nut limiting plate 20 is less than the height of the cavity a.
[0045] Further, the total length of the movable nut 30 is greater than the height of the cavity a and the thickness of the nut limiting plate 20, so that one end of the movable nut 30 can be located outside the cavity a, facilitating the fixing of the movable nut 30 before assembling the bolt.
[0046] Further, the diameter of the limit hole 201 is larger than the outer diameter of the limit section 31, so that the limit section 31 of the movable nut 30 can pass through the cavity a, facilitating the fixing of the movable nut 30 before assembling the bolt.
[0047] Further, the nut mounting plate 10 is in a "J" shape, so that a cavity a is formed between the arched plate surface in the middle of the nut mounting plate 10 and the nut limiting plate 20, and the "J"-shaped nut mounting plate 10 has better torsional resistance than the flat nut mounting plate 10.
[0048] Further, the bolt through hole 101 is located in the middle area of the nut mounting plate 10, so that after the bolt passes through the bolt through hole 101, the nut mounting plate 10 is evenly stressed and is not prone to developing through-shaped cracks along the horizontal direction.
[0049] Further, the nut limiting plate 20 and the nut mounting plate 10 are detachably connected by the cooperation of a nut and a bolt, so that when the movable nut 30 is damaged, the nut limiting plate 20 and the nut mounting plate 10 can be disassembled and then the movable nut 30 can be replaced.
[0050] Further, the nut is welded to the nut limiting plate 20, facilitating the bolt connection between the nut limiting plate 20 and the nut mounting plate 10.
[0051] In this application, by changing the projection welding nut 40 to a movable nut 30, there is a 5-mm movable space between the edge of the movable nut 30 and the hole wall of the limit hole 201 of the nut limiting plate 20. During assembly, the cumulative tolerances such as the hole size tolerance between the movable nut 30 and the assembly part hole, the welding tolerance, and the assembly error of the assembly can be absorbed; at the same time, there is a structure on the top of the movable nut 30 for guiding the bolt, making it easy to assemble the bolt. Therefore, when the parts are in a working condition that requires frequent disassembly and assembly, the nut is prone to thread slipping and breaking. Applying this solution can complete the repair by replacing the movable nut 30 without replacing the part where the nut is located, with low repair costs and a short repair cycle.
[0052] In addition, the nut limiting plate 20 may be various cross beams or longitudinal beams of the vehicle body and other parts that form a cavity with other structures in actual applications. Therefore, four projection welding bolts for disassembling the nut mounting plate 10 can be projection welded on various beams of the vehicle body, and a through hole for the movable nut 30 can be opened on them, without the need to separately develop the nut limiting plate 20.
[0053] This application also provides a vehicle, including a vehicle body main body and the above-mentioned nut mounting structure, and the nut mounting structure is connected to the vehicle body main body.
[0054] In this application, unless otherwise clearly defined and limited, terms such as "assembly" and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined. And the descriptions such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application.
[0056] The schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0057] Although the embodiments of this application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as a limitation to this application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and the description of this application shall fall within the scope covered by the patent of this application.
Claims
1. A nut mounting structure, characterized in that, Comprising: A nut mounting plate provided with bolt through-holes; A nut limiting plate detachably connected to the nut mounting plate, with a cavity formed between the nut limiting plate and the nut mounting plate. The nut limiting plate is provided with a limiting hole that communicates the inside and outside of the cavity, and the limiting hole is disposed opposite to the bolt through-hole; A movable nut, which includes a limiting section and a connecting section. The diameter of the limiting section is smaller than that of the connecting section. The outer diameter of the connecting section is larger than the diameter of the bolt through-hole and also larger than the diameter of the limiting hole. The limiting section passes through the limiting hole.
2. The nut mounting structure according to claim 1, characterized in that, The movable nut includes a first threaded hole section and a second threaded hole section, and the first threaded hole section is closer to the bolt through-hole than the second threaded hole section; The diameter of the first threaded hole section gradually decreases from the direction of the bolt through-hole towards the direction of the second threaded hole section.
3. The nut mounting structure according to claim 1, characterized in that, The height of the connecting section within the cavity is less than the height of the cavity.
4. The nut mounting structure according to claim 1, characterized in that, The total length of the movable nut is greater than the height of the cavity and the thickness of the nut limiting plate.
5. The nut mounting structure according to claim 1, characterized in that, The diameter of the limiting hole is larger than the outer diameter of the limiting section.
6. The nut mounting structure according to claim 1, characterized in that, The nut mounting plate is in a "C" shape.
7. The nut mounting structure according to claim 1, characterized in that, The bolt through-hole is located in the middle area of the nut mounting plate.
8. The nut mounting structure according to claim 1, wherein, The nut limiting plate and the nut mounting plate are detachably connected by the cooperation of a nut and a bolt.
9. The nut mounting structure according to claim 8, characterized in that, The nut is welded to the nut limiting plate.
10. A vehicle, characterized in that, Comprising a vehicle body main body and the nut mounting structure according to any one of claims 1-9, and the nut mounting structure is connected to the vehicle body main body.