Connecting structure
Through the convex flower tooth structure formed by the inability to insert and stamp, the problems of increasing thickness and harmful gas emissions in the threaded connection are solved, and a space-saving and environmentally friendly connection design is achieved.
Patent Information
- Application Number
- CN202421824290.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The protrusion of flange in existing threaded connections leads to an increase in the thickness of the connection structure and an increase in space. At the same time, harmful gases are generated during the welding process, which is not conducive to environmental protection.
By adopting the unblue design, the second member is embedded in the hole of the first member, and the protruding and floral structure are formed by stamping process to achieve a connection without welding, reducing the thickness of the connection structure and harmful gas emissions.
Effectively reduce the thickness and space occupation of the connecting structure, reduce harmful gas emissions during the production process, improve connection strength and reduce processing costs.
Smart Images
Figure CN223062877U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mechanical connection, and particularly to a connection structure. Background Art
[0002] Threaded connection is a widely used detachable fixed connection, which has the advantages of simple structure, reliable connection, convenient installation and disassembly, etc.
[0003] For metal connectors, usually a nut post is welded to the metal connector to form a connection structure, so that the metal connector can be threadedly connected to other components. To ensure the welding effect between the nut post and the metal connector, the nut post is generally provided with a flange and is welded to the metal connector through the flange.
[0004] However, during the implementation of this application, the inventors of this application found that: the flange protrudes from the metal connector, resulting in a protrusion on the surface of the connection structure, an increase in the thickness of the connection structure, and an increase in the space occupied by the connection structure; during the process of welding the nut post, harmful gases will be generated, which is not conducive to environmental protection. Summary of the Utility Model
[0005] Embodiments of this application aim to provide a connection structure, which can at least reduce the space occupied by the connection structure and reduce the harmful gases generated during the production of the connection structure.
[0006] Embodiments of this application solve the above technical problems by adopting the following technical solutions:
[0007] In a first aspect, embodiments of this application provide a connection structure, which includes a first component and a second component. The first component is provided with a first hole, and the opening direction of the first hole is parallel to a first direction. The second component is embedded in the first hole. The second component is provided with a threaded hole. Along the first direction, the second component includes a first end face and a second end face that are oppositely arranged, and the second component further includes an outer peripheral face connecting the first end face and the second end face, and the threaded hole penetrates through to the first end face and / or the second end face.
[0008] In some embodiments, the second component is provided with a first groove, and the first groove is located on the outer peripheral face; the inner wall of the first hole is provided with a first protrusion, and at least a part of the first protrusion is arranged in the first groove.
[0009] In some embodiments, the second component is in a cylindrical shape, and the cross-section of the first hole is circular; the first groove surrounds the second component.
[0010] In some embodiments, the first protrusion surrounds the second component.
[0011] In some embodiments, in the opposite direction of the first direction, the second member includes a first section, a second section, and a third section connected in sequence; the outer diameter of the second section is smaller than the outer diameters of the first section and the third section, and the first section, the second section, and the third section surround and form the first groove.
[0012] In some embodiments, the outer diameter of the third section is greater than the inner diameter of the first hole, and the outer diameter of the first section is equal to the inner diameter of the first hole.
[0013] In some embodiments, the outer peripheral surface of the third section is provided with splines, and the pitch diameter of the roots of the splines of the third section is equal to the inner diameter of the first hole.
[0014] In some embodiments, in the first direction, the first member includes a first surface and a second surface arranged opposite to each other, and the first hole penetrates from the first surface to the second surface; the first end surface of the second member is flush with the first surface.
[0015] In some embodiments, the second member is provided with a first guiding surface, one end of the first guiding surface is connected to the outer peripheral surface, and the other end of the first guiding surface is connected to the first end surface or the second end surface; when the first guiding surface contacts the edge of the first hole, the first guiding surface is used to guide the second member into the first hole.
[0016] In some embodiments, the second member is provided with a second guiding surface, one end of the second guiding surface is connected to the inner wall of the threaded hole, and the other end of the second guiding surface is connected to the first end surface or the second end surface; when the second guiding surface contacts the fastener, the second guiding surface is used to guide the fastener into the threaded hole.
[0017] In the connection structure of the embodiments of the present application, the second member is embedded in the first hole to dispose the second member on the first member, so that the second member does not need to be provided with a flange, thereby reducing the thickness of the connection structure and shrinking the space occupied by the connection structure; and there is no need for a welding process, reducing the harmful gases generated during the production process of the connection structure.
[0018] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. Description of the Drawings
[0019] One or more embodiments are illustrated by way of example in the corresponding drawings. These illustrative descriptions do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.
[0020] Figure 1 is a schematic structural view of the connection structure of an embodiment of the present application;
[0021] Figure 2 is an exploded view of the connection structure of an embodiment of the present application;
[0022] Figure 3 is a cross-sectional view of the connection structure of an embodiment of the present application.
[0023] The reference numerals in the specific embodiments are as follows:
[0024] 100, connection structure;
[0025] 1, first member; 11, first surface; 12, second surface; 13, first hole; 131, first protrusion; 132, tooth groove;
[0026] 2, second member; 21, first end face; 22, second end face; 23, outer peripheral face; 24, threaded hole; 25, first groove; 26, first section; 27, second section; 28, third section; 281, spline teeth; 29a, first guiding surface; 29b, second guiding surface;
[0027] X, first direction. Specific Embodiments
[0028] For ease of understanding the present application, the following provides a more detailed description of the present application in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.
[0030] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.
[0031] In the description of the embodiments of the present application, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings. Therefore, it should not be construed as a limitation to the protection scope of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.
[0033] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0034] The embodiments of the present application provide a connection structure 100. Please refer to Figure 1 and Figure 2 , the connection structure 100 includes a first member 1 and a second member 2, and the second member 2 is disposed on the first member 1.
[0035] For the above-mentioned first member 1, please refer to Figure 1 and Figure 2 , the first member 1 can be in the shape of a shell or a flat plate. In the embodiments of the present application, taking the first member 1 being in the shape of a flat plate as an example for illustration, the thickness direction of the first member 1 is the first direction X.
[0036] Please continue to refer to Figure 1 and Figure 2 , along the first direction X, the first member 1 includes a first surface 11 and a second surface 12 that are oppositely arranged, that is, the first surface 11 and the second surface 12 are the two largest-area planes of the first member 1.
[0037] Among them, please refer to Figure 1 and Figure 2, the first member 1 is provided with a first hole 13, and the opening direction of the first hole 13 is parallel to the first direction X. That is, the first member 1 is provided with the first hole 13 along the thickness direction. It can be understood that at least one end of the first hole 13 penetrates through the first surface 11 or the second surface 12.
[0038] In some embodiments, the first hole 13 is a through hole. Exemplarily, please refer to Figure 1 and Figure 2 , the first hole 13 penetrates from the first surface 11 to the second surface 12.
[0039] In some other embodiments, the first hole 13 is a blind hole. Exemplarily, one end of the first hole 13 penetrates through the first surface 11 or the second surface 12.
[0040] In some embodiments, please refer to Figure 1 and Figure 2 , the cross-section of the first hole 13 is circular, that is, the first hole 13 is a round hole. It can be understood that the cross-section of the first hole 13 can also be other shapes, such as square, triangular, etc.
[0041] For the above-mentioned second member 2, please refer to Figure 1 and Figure 2 , the second member 2 can be cylindrical. It can be understood that the second member 2 can also be cuboid, triangular prism, etc. In the embodiments of the present application, the case where the second member 2 is cylindrical is taken as an example for description.
[0042] Please continue to refer to Figure 1 and Figure 2 , along the first direction X, the second member 2 includes a first end face 21 and a second end face 22 which are oppositely arranged, and the second member 2 further includes an outer peripheral face 23 connecting the first end face 21 and the second end face 22. Among them, the outer peripheral face 23 can be cylindrical, square tube-shaped, etc.
[0043] In some embodiments, please refer to Figure 1 and Figure 2 , the second member 2 is embedded in the first hole 13. Exemplarily, the first hole 13 is adapted to the second member 2, that is, the cross-section of the first hole 13 is circular, and the inner diameter of the first hole 13 is equal to the outer diameter of the second member 2, so that the second member 2 can pass through the first hole 13 to be embedded in the first hole 13. It can be understood that the second member 2 is in interference fit with the first hole 13, that is, the outer diameter of the second member 2 is slightly larger than the inner diameter of the first hole 13. For example, the outer diameter of the second member 2 is 1% larger than the inner diameter of the first hole 13, so that the second member 2 can pass through the first hole 13, and the inner wall of the first hole 13 presses the second member 2 to fix the second member 2 in the first hole 13.
[0044] Since the second member 2 is disposed in the first member 1 by an embedding method, the second member 2 does not need to be provided with a flange, so as to reduce the thickness of the connection structure 100 and reduce the space occupied by the connection structure 100; and there is no need for a welding process, reducing the harmful gases generated during the production of the connection structure 100.
[0045] Among them, the second member 2 is used to connect with a fastener. Exemplarily, please refer to Figure 1 and Figure 2 , the second member 2 is provided with a threaded hole 24. It can be understood that the threaded hole 24 penetrates through to the first end face 21 and / or the second end face 22. In the embodiment of the present application, the threaded hole 24 penetrates from the first end face 21 to the second end face 22, so both ends of the threaded hole 24 can be connected to the fastener. Optionally, the fastener is a screw or a bolt.
[0046] In some embodiments, please refer to Figure 2 and Figure 3 , the second member 2 is provided with a first groove 25, and the first groove 25 is located on the outer peripheral surface 23; a first protrusion 131 is provided on the inner wall of the first hole 13, and at least a part of the first protrusion 131 is disposed in the first groove 25. When the second member 2 has a tendency to move relative to the first member 1 along the first direction X, the first protrusion 131 abuts against the inner wall of the first groove 25, applying a force opposite to the moving tendency of the second member 2 to the second member 2, so as to increase the force preventing the second member 2 from disengaging from the first hole 13 along the first direction X and increase the connection strength between the second member 2 and the first member 1.
[0047] In some embodiments, please refer to Figure 2 , the second member 2 is in a cylindrical shape, and the first groove 25 surrounds the second member 2. When the first groove 25 surrounds the second member 2, that is, the second member 2 is a rotating body, the second member 2 can be installed in the first hole 13 at any angle around the first direction X, reducing the difficulty of installing the second member 2 in the first hole 13 and improving the installation efficiency.
[0048] Furthermore, please refer to Figure 2 , the first protrusion 131 surrounds the second member 2. Increasing the contact area between the first protrusion 131 and the first groove 25 and increasing the connection strength between the second member 2 and the first member 1.
[0049] In some embodiments, please refer to Figure 3 , along the opposite direction of the first direction X, the second member 2 includes a first section 26, a second section 27 and a third section 28 connected in sequence; the outer diameter of the second section 27 is smaller than the outer diameters of the first section 26 and the second section 27. It can be understood that the first groove 25 is formed at the connection of the first section 26, the second section 27 and the third section 28, that is, the first section 26, the second section 27 and the third section 28 surround and form the first groove 25.
[0050] In some embodiments, referring to Figure 3 , the outer diameter of the third section 28 is greater than the inner diameter of the first hole 13, and the outer diameter of the first section 26 is equal to the inner diameter of the first hole 13. When the second member 2 is installed in the first hole 13 along the first direction X, for example, by a stamping process, the second member 2 is stamped into the first hole 13, and the third section 28 will squeeze the first member 1 along the first direction X, causing the squeezed part of the first member 1 to deform at the first groove 25 to form a first protrusion 131. There is no need to form the first protrusion 131 by other processes on the inner wall of the first hole 13, which is beneficial to reducing the processing cost of the connection structure 100; and there is a large pressure between the third section 28 and the first member 1, which can tightly clamp the first member 1 in the first hole 13 and increase the connection strength between the second member 2 and the first member 1.
[0051] In some embodiments, the first member 1 is made of a metal material, such as copper, aluminum, iron, etc., which is beneficial to increasing the ductility of the first member 1, making it easier for the squeezed part of the first member 1 to form the first protrusion 131. Among them, the hardness of the second member 2 is greater than the hardness of the first member 2. For example, the second member 2 is made of aluminum alloy, stainless steel, etc., which improves the problem that it is difficult for the third section 28 to squeeze and form the first protrusion 131 with the first member 1 due to deformation when the third section 28 squeezes the first member 1.
[0052] In some embodiments, referring to Figure 2 , the outer peripheral surface 23 of the third section 28 is provided with a spline 281, and the pitch diameter of the root circle of the third section 28 is equal to the inner diameter of the first hole 13. When the second member 2 is installed in the first hole 13 along the first direction X, for example, by a stamping process, the second member 2 is stamped into the first hole 13, and the spline 281 will squeeze the first member 1 along the first direction X, and a tooth groove 132 that mates with the spline 281 is formed by squeezing on the inner wall of the first hole 13. When the second member 2 has a tendency to rotate relative to the first member 1 around the first direction X, the inner wall of the tooth groove 132 abuts against the spline 281, applying a force to the second member 2 that is opposite to the rotation tendency of the second member 2, so as to increase the force that prevents the second member 2 from rotating around the first direction X, improving the problem that the second member 2 rotates in the first hole 13, and improving the problem that when a fastener is tightened on the second member 2, the thread connection strength between the fastener and the second member 2 is insufficient due to the rotation of the second member 2.
[0053] When the third section 28 squeezes the first member 1 along the first direction X, by providing the spline 281, the contact area between the end face of the third section 28 and the first member 1 can be reduced, making it easier to stamp the second member 2 into the first hole 13 by a stamping process.
[0054] In some embodiments, referring to Figure 1 and Figure 3, the first end face 21 of the second component 2 is flush with the first face 11. This improves the problem that the second component 2 protrudes from the first component 1, reduces the thickness of the connection structure 100, and shrinks the space occupied by the connection structure 100.
[0055] Similarly, in some embodiments, the second end face 22 of the second component 2 is flush with the second face 12. This also improves the problem that the second component 2 protrudes from the first component 1, reduces the thickness of the connection structure 100, and shrinks the space occupied by the connection structure 100.
[0056] In some embodiments, referring to Figure 2 and Figure 3 , the second component 2 is provided with a first guiding surface 29a. One end of the first guiding surface 29a is connected to the outer peripheral surface 23, and the other end of the first guiding surface 29a is connected to the first end face 21 or the second end face 22.
[0057] Wherein, when the first guiding surface 29a contacts the edge of the first hole 13, the first guiding surface 29a is used to guide the second component 2 into the first hole 13. Exemplarily, referring to Figure 2 and Figure 3 , the first guiding surface 29a is a chamfer at the connection of the outer peripheral surface 23 and the first end face 21 or the second end face 22. When the first guiding surface 29a contacts the edge of the first hole 13, a force is applied to the first component 1 towards the first hole 13, and the edge of the first hole 13 applies a force to the first guiding surface 29a towards the central axis of the first hole 13, thereby guiding the second component 2 into the first hole 13. Optionally, the first guiding surface 29a is a curved surface.
[0058] In some embodiments, referring to Figure 2 and Figure 3 , the second component 2 is provided with a second guiding surface 29b. One end of the second guiding surface 29b is connected to the inner wall of the threaded hole 24, and the other end of the second guiding surface 29b is connected to the first end face 21 or the second end face 22.
[0059] Wherein, when the second guiding surface 29b contacts the fastener, the second guiding surface 29b is used to guide the fastener into the threaded hole 24. Exemplarily, referring to Figure 2 and Figure 3 , the second guiding surface 29b is a chamfer at the connection of the inner wall of the threaded hole 24 and the first end face 21 or the second end face 22. When the first guiding surface 29a contacts the fastener, a force is applied to the fastener towards the threaded hole 24, and the second guiding surface 29b applies a force to the fastener towards the central axis of the threaded hole 24, thereby guiding the fastener into the threaded hole 24. Optionally, the second guiding surface 29b is a curved surface.
[0060] For the connection structure 100 according to the embodiment of the present application, the second component 2 is embedded in the first hole 13 to dispose the second component 2 on the first component 1. Thus, the second component 2 does not need to be provided with a flange, reducing the thickness of the connection structure 100 and shrinking the space occupied by the connection structure 100. Moreover, there is no need for a welding process, reducing the harmful gases generated during the production of the connection structure 100. The first protrusion 131 can be formed by the third section 28 pressing on the first component 1, which is beneficial to reducing the processing cost of the connection structure 100 and increasing the connection strength between the second component 2 and the first component 1.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. There are many other variations in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A connection structure, characterized in that, Comprising: A first member provided with a first hole, the opening direction of the first hole being parallel to a first direction; A second member embedded in the first hole, the second member being provided with a threaded hole. Along the first direction, the second member includes a first end face and a second end face disposed opposite to each other, and the second member further includes an outer peripheral surface connecting the first end face and the second end face, and the threaded hole penetrates to the first end face and / or the second end face.
2. The connection structure according to claim 1, characterized in that The second member is provided with a first groove located on the outer peripheral surface; The inner wall of the first hole is provided with a first protrusion, and at least a part of the first protrusion is disposed in the first groove.
3. The connection structure according to claim 2, characterized in that, The second member is in a cylindrical shape, and the cross-section of the first hole is circular; The first groove surrounds the second member.
4. The connection structure according to claim 3, characterized in that, The first protrusion surrounds the second member.
5. The connection structure according to claim 3, wherein Along the opposite direction of the first direction, the second member includes a first section, a second section, and a third section connected in sequence; The outer diameter of the second section is smaller than the outer diameters of the first section and the third section, and the first section, the second section, and the third section enclose to form the first groove.
6. The connection structure according to claim 5, characterized in that, The outer diameter of the third section is larger than the inner diameter of the first hole, and the outer diameter of the first section is equal to the inner diameter of the first hole.
7. The connection structure according to claim 6, characterized in that The outer peripheral surface of the third section is provided with splines, and the pitch diameter of the roots of the teeth of the third section is equal to the inner diameter of the first hole.
8. The connection structure according to any one of claims 1 to 7, characterized in that, Along the first direction, the first member includes a first face and a second face disposed opposite to each other, and the first hole penetrates from the first face to the second face; The first end face of the second member is flush with the first face.
9. The connection structure according to any one of claims 1 to 7, characterized in that, The second member is provided with a first guiding surface, one end of the first guiding surface connecting the outer peripheral surface, and the other end of the first guiding surface connecting the first end face or the second end face; When the first guiding surface contacts the edge of the first hole, the first guiding surface is used to guide the second member into the first hole.
10. The connection structure according to any one of claims 1 to 7, characterized in that, The second member is provided with a second guiding surface, one end of the second guiding surface connecting the inner wall of the threaded hole, and the other end of the second guiding surface connecting the first end face or the second end face; When the second guiding surface contacts a fastener, the second guiding surface is used to guide the fastener into the threaded hole.