Riveting structure
By setting tree-shaped protrusions on the rod assembly of the metal part, the contact area is increased, and the elastic deformation of the plastic part is utilized to solve the problem of insufficient connection strength between metal and plastic, achieving a more reliable connection and improving the stability and durability of the riveting structure.
Patent Information
- Application Number
- CN202423266812.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing technology has insufficient bonding strength between metal and plastic, which makes it easy for the metal to loosen or fail during long-term use.
The metal rod assembly has two tree-shaped protrusions spaced apart. These protrusions are inserted into the holes in the plastic part. The protrusions compress the inner wall of the plastic part to create a deformation space and are fastened therein, increasing the contact area and utilizing the elastic deformation characteristics of the plastic part to form a tight lock.
It significantly enhances the connection strength between metal and plastic parts, improves the stability and durability of the riveted structure, and avoids loosening or failure caused by insufficient connection strength.
Smart Images
Figure CN223524169U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to installation technical field especially relates to a riveting structure. BACKGROUND
[0002] In assembly manufacturing, metal rivets need to be inserted into plastic parts in some scenarios to connect them. The metal rivets in the prior art have an insertion rod, and the plastic part has an insertion hole. The two are riveted by inserting the insertion rod into the insertion hole. However, due to the large difference in physical properties between metal and plastic, the connection strength is insufficient, which leads to loosening or failure of the connection between the two during long-term use.
[0003] Therefore, it is necessary to provide a riveting structure to solve the above problems. SUMMARY
[0004] The utility model aims at providing a riveting structure to enhance the connection strength between the metal part and the plastic part, avoid loosening or failure due to insufficient connection strength during long-term use, and improve the stability and durability of the riveting structure.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A riveting structure comprises:
[0007] A metal part comprises a rod assembly, two tree-shaped protrusion assemblies are spaced apart on the rod assembly, and both protrusion assemblies protrude from the outer peripheral surface of the rod assembly.
[0008] A plastic part has a hole, the rod assembly of the metal part is inserted into the hole, the outer circumferential diameter of both protrusion assemblies is greater than the corresponding position of the hole, so that the two protrusion assemblies extrude the inner wall of the hole of the plastic part to generate a deformation space, and the two protrusion assemblies are buckled in the deformation space.
[0009] As a preferred embodiment, the protrusion assembly comprises a plurality of protrusions, which extend away from the outer periphery of the rod assembly along the axis direction of the rod assembly.
[0010] As a preferred embodiment, the number of protrusions is three.
[0011] As a preferred embodiment, the rod assembly comprises a first rod and a second rod arranged in sequence, the two protrusion assemblies are arranged on the first rod and the second rod respectively, the hole of the plastic part comprises a first hole and a second hole arranged in sequence, the hole diameter of the first hole is different from that of the second hole, the first rod is inserted into the first hole, and the second rod is inserted into the second hole.
[0012] As preferred, the two protrusion assemblies are a first protrusion assembly and a second protrusion assembly respectively, the first protrusion assembly is arranged on the first rod, the second protrusion assembly is arranged on the second rod, and the difference between the outer circumferential diameter of the first protrusion assembly and the diameter of the first rod is greater than the difference between the outer circumferential diameter of the second protrusion assembly and the diameter of the second rod.
[0013] As preferred, the metal piece further comprises a nail head arranged at one end of the rod assembly, and the nail head is capable of abutting against the top end of the plastic piece.
[0014] As preferred, the nail head is integrally formed with the rod assembly.
[0015] As preferred, the metal piece further comprises a guide rod arranged at the other end of the rod assembly, and the guide rod is slidingly guided into the hole.
[0016] As preferred, the bottom end of the guide rod is provided with a chamfer.
[0017] As preferred, the guide rod is integrally formed with the rod assembly.
[0018] The utility model discloses the beneficial effect:
[0019] The riveting structure comprises a metal piece and a plastic piece, the metal piece comprises a rod assembly, two tree-shaped protrusion assemblies are arranged on the rod assembly at intervals, and the two protrusion assemblies protrude from the outer circumferential surface of the rod assembly; the plastic piece is provided with a hole, the rod assembly of the metal piece is inserted into the hole, the outer circumferential diameters of the two protrusion assemblies are greater than the circumferential diameters of the corresponding positions of the hole, so that the two protrusion assemblies extrude the inner wall of the hole to generate a deformation space, and the two protrusion assemblies are buckled in the deformation space.
[0020] The outer circumferential surface of the rod assembly is provided with two tree-shaped protrusion assemblies, the two protrusion assemblies can extrude the inner wall of the hole to generate a deformation space, and the protrusion assemblies are buckled in the deformation space to form a tight locking effect; moreover, the tree-shaped structure can better resist shearing and extrusion force, and provide higher strength and stability; the connection strength between the metal piece and the plastic piece is further enhanced by arranging the two protrusion assemblies. The riveting structure significantly enhances the connection strength between the metal piece and the plastic piece, the contact area of the metal piece and the plastic piece is increased by the tree-shaped protrusion assemblies, the elastic deformation characteristics of the plastic piece are utilized, more reliable connection is realized, the problems of loosening or failure caused by insufficient connection strength during long-term use are avoided, and the stability and durability of the riveting structure are improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a sectional view of the riveting structure provided by the utility model;
[0022] Figure 2 is a structural schematic view of the metal piece provided by the utility model;
[0023] Figure 3 is a structural schematic view of the plastic piece provided by the utility model.
[0024] In the drawings:
[0025] 1, metal piece; 11, rod assembly; 111, first rod; 112, second rod; 121, first protrusion assembly; 122, second protrusion assembly; 13, nail head; 14, guide rod; 141, chamfer;
[0026] 2, plastic piece; 21, hole site; 211, first hole; 212, second hole. DETAILED DESCRIPTION
[0027] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.
[0028] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0029] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0030] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0031] In assembly manufacturing, in some scenarios, metal rivets need to be inserted into plastic parts to connect them. The metal rivets in the prior art have an insertion rod, and the plastic parts have an insertion hole, and the riveting is completed by inserting the insertion rod into the insertion hole. However, due to the large difference in physical properties between metal and plastic, the connection strength is insufficient, which leads to loosening or failure of the connection between the two during long-term use.
[0032] To solve the above problems, as shown in Figures 1-3 The present embodiment provides a riveting structure, which includes a metal part 1 and a plastic part 2. The metal part 1 includes a rod assembly 11, and two tree-shaped protrusion assemblies are distributed on the rod assembly 11. Both protrusion assemblies protrude from the outer peripheral surface of the rod assembly 11. The plastic part 2 has a hole position 21, and the rod assembly 11 of the metal part 1 is inserted into the hole position 21. The outer circumferential diameters of the two protrusion assemblies are both greater than the corresponding circumferential diameters of the hole position 21, so that the two protrusion assemblies extrude the inner wall of the hole position 21 to generate a deformation space, and the two protrusion assemblies are buckled in the deformation space.
[0033] Because the outer periphery of the rod assembly 11 has two tree-shaped protrusion assemblies, the two protrusion assemblies can extrude the inner wall of the hole position 21 to generate a deformation space, and the protrusion assemblies are buckled in the deformation space to form a tight locking effect. In addition, the tree-shaped structure can better resist shear and extrusion force, providing higher strength and stability. By providing two protrusion assemblies, the connection strength between the metal part 1 and the plastic part 2 is further enhanced. The riveting structure significantly enhances the connection strength between the metal part 1 and the plastic part 2. The tree-shaped protrusion assemblies increase the contact area between the metal part 1 and the plastic part 2. The elastic deformation characteristics of the plastic part 2 are also utilized to achieve a more secure connection, avoiding loosening or failure due to insufficient connection strength during long-term use, and improving the stability and durability of the riveting structure.
[0034] In an optional embodiment, the metal part 1 is made of steel, and the plastic part 2 is made of engineering plastic material, and the two are assembled by a press fitting machine.
[0035] Specifically, as shown in Figure 1 , Figure 2As shown, the protrusion assembly includes several protrusions, which extend in the direction of the axis of the rod assembly 11, away from the outer circumferential direction of the rod assembly 11. The protrusions can effectively fasten the inner wall of the hole position 21 of the plastic part 2, form a more intimate contact, and significantly enhance the locking effect; the protrusions can guide and disperse the stress when the metal part 1 is connected with the plastic part 2, avoid damage to the metal part 1 caused by stress concentration, and make the riveting structure more durable.
[0036] It should be noted that the specific number of protrusions is determined by actual needs. For example, in the present embodiment, the number of protrusions of the two protrusion assemblies is two and three, respectively.
[0037] Specifically, as shown in Figure 1 , Figure 2 , the rod assembly 11 includes a first rod 111 and a second rod 112 arranged in sequence, and the two protrusion assemblies are arranged on the first rod 111 and the second rod 112, respectively. The hole position 21 of the plastic part 2 includes a first hole 211 and a second hole 212 arranged in sequence, the hole diameters of the first hole 211 and the second hole 212 are different, the first rod 111 is inserted into the first hole 211, and the second rod 112 is inserted into the second hole 212. It can be understood that the first rod 111 is riveted with the first hole 211, and the second rod 112 is riveted with the second hole 212, so the diameters of the first rod 111 and the second rod 112 are also different. By setting two different hole diameters of the insertion part, that is, the insertion part between the first rod 111 and the first hole 211 and the insertion part between the second rod 112 and the second hole 212, the stress can be guided and dispersed, the distribution of the stress is optimized, and the strength of the riveting structure as a whole is improved; the two different hole diameters of the insertion part can provide clear guidance and positioning effect for the assembly process. During assembly, the first rod 111 is first inserted into the first hole 211 for preliminary positioning, and as it is gradually inserted and extended, the second rod 112 is inserted into the second hole 212 for accurate adjustment, which helps to improve the assembly accuracy and efficiency.
[0038] Specifically, as shown in Figure 1 , Figure 2As shown, the two protruding components are respectively a first protruding component 121 and a second protruding component 122, the first protruding component 121 is arranged on the first rod 111, and the second protruding component 122 is arranged on the second rod 112. The difference between the outer circumferential diameter where the first protruding component 121 is located and the diameter of the first rod 111 is greater than the difference between the outer circumferential diameter where the second protruding component 122 is located and the diameter of the second rod 112. By arranging the first protruding component 121 and the second protruding component 122 on the first rod 111 and the second rod 112 respectively, it can be ensured that the riveting of the first rod 111 and the first hole 211 and the riveting of the second rod 112 and the second hole 212 both have sufficient connection strength. The difference between the outer circumferential diameter where the first protruding component 121 is located and the diameter of the first rod 111 is greater than the difference between the outer circumferential diameter where the second protruding component 122 is located and the diameter of the second rod 112, that is, the protruding degree of the first protruding component 121 compared to the first rod 111 is greater than the protruding degree of the second protruding component 122 compared to the second rod 112, so that the first protruding component 121 can ensure that the first rod 111 and the first hole 211 have stronger connection strength, and the second protruding component 122 can make the deformation of the plastic part 2 smaller, so as to avoid phenomena such as unevenness, burrs and the like; through the cooperation of the first protruding component 121 and the second protruding component 122, the connection strength of the metal part 1 and the plastic part 2 can be ensured, and the appearance of the riveting structure can also be ensured.
[0039] Specifically, as shown in Figure 1 , Figure 2 The metal part 1 also includes a nail head 13, which is arranged at one end of the rod assembly 11 and can abut against the top end of the plastic part 2. The nail head 13 can make the metal part 1 easier to position during installation, ensure correct installation of the metal part 1, and reduce assembly errors. Specifically, during the process of using a press-fit machine to press-fit the metal part 1 to the plastic part 2, the press-fit machine stops working when the nail head 13 abuts against the plastic part 2, at which time the metal part 1 and the plastic part 2 are installed in place; since the nail head 13 can abut against the top end of the plastic part 2, the nail head 13 can cover the hole position 21 after the metal part 1 and the plastic part 2 are installed, preventing external impurities from entering the hole position 21, ensuring that the interior of the riveting structure is free from corrosion and pollution, and helping to improve the durability and service life of the riveting structure.
[0040] In this embodiment, the nail head 13 is integrally formed with the rod assembly 11. The design of integral molding simplifies the production process, reduces processing and assembly steps, helps to reduce production costs and improve production efficiency, avoids the problems of welding defects and insecure connection that may be caused by traditional welding or splicing methods, and makes the overall structure of the metal part 1 more stable.
[0041] Specifically, as shown in Figure 2As shown, the metal piece 1 further comprises a guide rod 14, which is arranged at the other end of the rod assembly 11 and is slidingly guided in the hole position 21. The guide rod 14 can guide the movement of the metal piece 1 inserted into the plastic piece 2, so that the assembly process is more simple and fast, and the metal piece 1 is prevented from shaking during movement.
[0042] Further, as shown, Figure 2 The bottom end of the guide rod 14 is provided with a chamfer 141. The chamfer 141 can make the guide rod 14 more easily enter or exit the hole position 21, which helps to reduce the installation difficulty and improve the work efficiency. The chamfer 141 can reduce the friction between the guide rod 14 and the hole position 21, so that the installation process is more smooth.
[0043] In the embodiment, the guide rod 14 is integrally formed with the rod assembly 11. The integrated design simplifies the production process, reduces the processing and assembly steps, helps to reduce the production cost and improve the production efficiency, avoids the welding defects and the connection problem caused by the traditional welding or splicing method, and makes the overall structure of the metal piece 1 more stable.
[0044] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation on the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A riveted structure, characterized by, The utility model relates to a metal-plastic combined fastener, which comprises: a metal piece (1) comprising a rod assembly (11) with two tree-shaped protruding assemblies spaced apart on the outer circumferential surface of the rod assembly (11); a plastic piece (2) with a hole (21) into which the rod assembly (11) of the metal piece (1) is inserted, wherein the outer circumferential diameters of the two protruding assemblies are both greater than the corresponding circumferential diameters of the hole (21) so that the two protruding assemblies extrude the inner wall of the hole (21) of the plastic piece (2) to form a deformation space, and the two protruding assemblies are buckled in the deformation space.
2. The rivet structure according to claim 1, characterized by The protruding assembly comprises a plurality of protrusions extending away from the outer circumferential surface of the rod assembly (11) along the axial direction of the rod assembly (11).
3. The riveted structure according to claim 2, characterized in that The number of protrusions is two or three.
4. The riveted structure according to claim 1, characterized by The rod assembly (11) comprises a first rod (111) and a second rod (112) arranged in sequence, and the two protruding assemblies are arranged on the first rod (111) and the second rod (112), respectively.
5. The riveted structure according to claim 4, characterized in that The hole (21) of the plastic piece (2) comprises a first hole (211) and a second hole (212) arranged in sequence, the hole diameters of the first hole (211) and the second hole (212) are different, the first rod (111) is inserted into the first hole (211), and the second rod (112) is inserted into the second hole (212).
6. The riveted structure according to any one of claims 1 to 5, characterized in that The two protruding assemblies are a first protruding assembly (121) and a second protruding assembly (122), the first protruding assembly (121) is arranged on the first rod (111), the second protruding assembly (122) is arranged on the second rod (112), and the difference between the outer circumferential diameter of the first protruding assembly (121) and the diameter of the first rod (111) is greater than the difference between the outer circumferential diameter of the second protruding assembly (122) and the diameter of the second rod (112).
7. The riveted structure according to claim 6, characterized in that The metal piece (1) further comprises a nail head (13) arranged at one end of the rod assembly (11), and the nail head (13) can abut against the top end of the plastic piece (2).
8. The riveted structure according to claim 1, characterized by The nail head (13) is integrally formed with the rod assembly (11).
9. The riveted structure according to claim 8, characterized in that The metal piece (1) further comprises a guide rod (14) arranged at the other end of the rod assembly (11), and the guide rod (14) is slidingly guided in the hole (21).
10. The rivet structure according to claim 8, wherein The bottom end of the guide rod (14) is provided with a chamfer (141). The guide rod (14) is integrally formed with the rod assembly (11).