Sealing pressing rivet bushing

Abstract

The invention relates to a riveting piece, in particular to a sealing press-riveting bushing which comprises a body, a press-riveting sleeve, a sealing sleeve and a sealing sleeve. The body is arranged to be in an annular shape extending in the axial direction. The turning riveting part is connected to the first surface of the body, the outer diameter of the turning riveting part is smaller than that of the body, so that the turning riveting part and the body form an annular step-shaped structure, the turning riveting part is turned outwards in the axial direction from the first surface of the body, and the maximum outer diameter of the turning riveting part is smaller than the inner diameter of the mounting hole; the rivet turning part is used for further turning outwards in the riveting process, so that at least part of the mounting plate is extruded by the rivet turning part and deforms in the riveting process; wherein a melting groove which is concave inwards in the axial direction is formed in the connecting position of the outer wall of the flanging and riveting part and the first face of the body, the melting groove is used for containing at least part of the deformed mounting plate, and glue is arranged on the surface of the melting groove. By means of the structure, the melting groove is formed between the flanging and riveting part and the body, and gluing treatment is conducted on the melting groove, so that the sealing performance is improved.

Description

Technical Field

[0001] The invention relates to a riveted part, in particular to a sealing riveted bushing. Background Art

[0002] The description in this section merely provides background information related to the present disclosure and does not constitute prior art.

[0003] The self-riveted bushing is a riveted structure connected to the mounting plate, which is generally arranged in a ring shape. After riveting, the hollow bushing structure can be tightly combined with the mounting plate to facilitate expanding the structural function of the mounting plate.

[0004] After the existing riveted bushing is riveted to the mounting plate, since the riveted bushing and the mounting plate are generally only connected separately, it is inevitable that there may be a splicing gap due to factors such as uneven force during the riveting process, which may cause the front and rear sealing effects of the mounting plate at the riveted joint to be difficult to meet the use requirements. Furthermore, in order to meet the requirements, the existing technology needs to make a specific sealing and anti-penetration structural design on the riveted structure, which increases the cost and has a general effect.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the present invention. Summary of the invention

[0006] The purpose of the present invention is to provide a sealed riveted bushing, which can improve the sealing performance by providing a melting groove between the riveted part and the main body and providing a glue coating treatment at the melting groove.

[0007] In order to achieve the above object, the present invention discloses the following sealing riveting bushing, which is used to be connected to a mounting plate, wherein the mounting plate has a mounting hole; the sealing riveting bushing comprises:

[0008] A body, the body is arranged in a ring shape extending in the axial direction, and the body has a first surface and a second surface arranged opposite to each other in the axial direction;

[0009] A riveting part, wherein the riveting part is connected to the first surface of the body, the outer diameter of the riveting part is smaller than the outer diameter of the body, so that the riveting part and the body form an annular step-shaped structure, and the riveting part is turned outward along the axial direction from the first surface of the body, and the maximum outer diameter of the riveting part is smaller than the inner diameter of the mounting hole; the riveting part is used to be further turned outward during the riveting process, so that at least part of the mounting plate is squeezed and deformed by the riveting part during the riveting process;

[0010] Wherein, a melting groove which is recessed inwardly along the axial direction is provided at a place where the outer wall of the riveted portion is connected to the first surface of the main body, and the melting groove is used to accommodate at least a part of the mounting plate after deformation, and a surface of the melting groove is provided with glue.

[0011] Furthermore, after riveting is completed, the dimension of the riveted portion along the axial direction is the same as the dimension of the mounting plate along the axial direction.

[0012] Furthermore, the main body and the riveted portion are configured as an integrally formed structure, and there is a smooth transition between the inner annular wall of the main body and the inner annular wall of the riveted portion.

[0013] Furthermore, the glue coating at least covers a portion of the mounting plate that is deformed after riveting is completed, so that the connection between the mounting plate and the sealing riveting bushing is completely sealed.

[0014] Furthermore, the glue coating is epoxy resin glue or polyurethane glue.

[0015] A connection structure is also disclosed, which includes the above-mentioned mounting plate and sealing riveted bushing, wherein the mounting plate and the sealing riveted bushing are riveted together, and the connection between the mounting plate and the sealing riveted bushing is sealed by means of the glue.

[0016] Also disclosed is a riveting device for riveting the above-mentioned mounting plate and the sealing riveted bushing, wherein the riveting device comprises an upper mold corresponding to one side of the riveted part and a lower mold corresponding to one side of the main body, wherein the upper mold has a raised riveting mechanism facing the side of the riveted part, and the riveting mechanism is used to squeeze the riveted part after the upper mold is pressed down so that the riveted part is further turned outward.

[0017] Furthermore, the diameter of the riveting mechanism is between the maximum diameter and the minimum diameter of the riveting part.

[0018] By means of the above technical solution, the beneficial effects of the present invention are as follows:

[0019] The sealing self-riveting bushing of the present invention can be achieved by providing a melt groove between the riveted portion and the main body and providing a glue coating at the melt groove. During the riveting process of the sealing self-riveting bushing, the riveted portion is further turned outward and at least a portion of the mounting plate is squeezed into the melt groove. Since there is a glue coating in the melt groove, the glue can occupy the entire gap between the riveted structures to achieve a tight combination between the sealing self-riveting bushing and the mounting plate, and the sealing degree is further improved, thereby achieving the sealing installation requirements of the product.

[0020] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 is a cross-sectional view of a sealing riveted bushing provided in an embodiment of this specification;

[0023] Figure 2 It is a top view of a sealing riveted bushing provided in an embodiment of this specification;

[0024] Figure 3 It is a riveting diagram of a sealing riveted bushing provided in an embodiment of this specification;

[0025] Figure 4 This is a schematic diagram of a use scenario of a sealed riveted bushing provided in an embodiment of this specification;

[0026] In the figure: 100, mounting plate; 200, connecting plate; 1, main body; 2, riveting part; 3, melting groove; 4, glue coating; 5, upper mold; 51, riveting mechanism; 6, lower mold. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be described clearly and completely below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0028] The following is an explanation of the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual sizes. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0029] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0030] See also Figure 1-3 , is a sealing riveting bushing of this embodiment, used to be connected to the mounting plate 100, wherein the mounting plate 100 has a mounting hole; wherein the sealing riveting bushing includes:

[0031] A body 1, the body 1 is arranged in a ring shape extending in the axial direction, and the body 1 has a first surface and a second surface arranged opposite to each other in the axial direction;

[0032] The riveting part 2 is connected to the first surface of the main body 1, and the outer diameter of the riveting part 2 is smaller than the outer diameter of the main body 1, so that the riveting part 2 and the main body 1 form an annular step-shaped structure, and the riveting part 2 is axially turned outward from the first surface of the main body 1, and the maximum outer diameter of the riveting part 2 is smaller than the inner diameter of the mounting hole; the riveting part 2 is used to be further turned outward during the riveting process, so that at least part of the mounting plate 100 is squeezed and deformed by the riveting part 2 during the riveting process;

[0033] The outer wall of the riveted part 2 is connected to the first surface of the main body 1 with a melting groove 3 which is axially recessed inward. The melting groove 3 is used to accommodate at least part of the mounting plate 100 after deformation. The surface of the melting groove 3 is provided with glue 4.

[0034] The sealing riveting bushing structure mentioned above is mainly composed of two parts: the main body 1 and the riveting part 2. In the processing stage, the overall shape of the main body 1 and the riveting part 2 can be produced by machining, and the melting groove 3 between the main body 1 and the riveting part 2 can be repaired. After forming, the sealing riveting bushing is electroplated so that the outer surface of the sealing riveting bushing meets the basic use requirements. Then, the melting groove 3 between the main body 1 and the riveting part 2 is coated with glue so that the outer surface of the melting groove 3 is covered with the glue for sealing, waiting for subsequent use. Finally, the sealing riveting bushings with glue coating are selected and quality inspected, and the sealing riveting bushings that meet the preset quality are selected for subsequent riveting.

[0035] With the above structure, see Figure 3 When in use, the operator only needs to install the sealing riveting bushing to one side of the mounting plate 100. Specifically, the mounting hole of the mounting plate 100 is sleeved outside the riveting part 2. Then, the second surface of the body 1 is placed on the lower mold 6, and the upper mold 5 of the corresponding size is selected, so that the riveting mechanism 51 of the upper mold 5 is pressed down in the direction of the riveting part 2, and the axis of the riveting mechanism 51 coincides with the axis of the riveting part 2. During the pressing process, at least part of the inner wall of the riveting part 2 first contacts the pressing riveting mechanism 51, and the riveting mechanism 51 continues to press down, so that the riveting mechanism 51 applies a force mainly in the radial direction to the riveting part 2. Under the action of the above force, the riveting part 2 is pressed forward. It is turned outward in one step, and a force mainly w is applied to the inner wall of the mounting hole of the mounting plate 100 outside the riveted part 2. The metal body of the mounting plate 100 at the inner wall of the mounting hole is squeezed and deformed under the action of the radial force and overflows to the periphery. At the same time, due to the limitation of the upper mold 5 on the outer periphery of the riveting mechanism 51 and the limitation of the first surface of the main body 1, the metal body of the mounting plate 100 flows to the concave melt groove 3 area between the riveted part 2 and the main body 1 until the upper mold 5 is completely pressed down, so that the riveted part 2 is in the maximum turned outward state under the extrusion of the riveting mechanism 51 of the upper mold 5, and the concave melt groove 3 between the riveted part 2 and the main body 1 is filled with the deformed mounting plate 100.

[0036] It is worth noting that in the above process, when the metal material of the mounting plate 100 flows to the concave melting groove 3 area between the riveting part 2 and the main body 1, the deformed mounting plate 100 will contact the glue 4 on the surface of the melting groove 3, and the deformed mounting plate 100 will continue to squeeze the melting groove 3, so that the glue 4 on the surface of the melting groove 3 is completely adhered to the deformed mounting plate 100, so that the mounting plate 100 and the melting groove 3 are in a state of being completely sealed and isolated by the glue 4. In other words, since the mounting plate 100 and the melting groove 3 are completely blocked by the glue 4, after the mounting plate 100 and the sealing riveting bushing are completely riveted, the connection between the mounting plate 100 and the sealing riveting bushing is in a completely sealed state, avoiding the situation in which the sealing degree of the connection between the mounting plate 100 and the sealing riveting bushing is too low due to unstable riveting and other reasons when there is no glue 4 at the melting groove 3 in the existing embodiment, resulting in air leakage and liquid leakage. Therefore, this embodiment achieves efficient and stable riveting by accommodating the deformed mounting plate 100 with the help of the melt groove 3 structure, and at the same time, the sealing riveted bushing after riveting has excellent sealing performance with the help of the glue 4 on the surface of the melt groove 3.

[0037] Furthermore, in the present embodiment, the coating glue 4 is set to epoxy resin glue or polyurethane glue, which is relatively cheap, easy to obtain, easy to apply, and has stable chemical properties. In the above-mentioned riveting effect, in addition to being able to achieve the preset sealing effect, with the help of the high viscosity of epoxy resin glue or polyurethane glue, the mechanical connection strength between the mounting plate 100 and the sealing riveted bushing can be further improved, avoiding the separation between the mounting plate 100 and the sealing riveted bushing caused by the breakage or deformation of the metal structure in some cases. The specific material of the coating glue 4 can be selected according to actual cost control, and the use of other types of glue does not deviate from the use scenario of this embodiment.

[0038] Furthermore, after riveting is completed, the axial dimension of the riveted portion 2 is the same as the axial dimension of the mounting plate 100. That is to say, when the riveted portion 2 is not completely deformed, the axial dimension of the riveted portion 2 is slightly larger than the axial dimension of the mounting plate 100. During the gradual riveting process, the riveted portion 2 is subjected to the extrusion force of the riveting mechanism 51, so that the riveted portion 2 is turned outward and presses the mounting plate 100. In the process of the riveting mechanism 51 pressing the riveted portion 2 downward, the degree of the turned outward of the riveted portion 2 gradually increases until the riveted portion 2 is completely turned outward. When the riveted portion 2 is completely turned outward, the amount of the riveted portion 2 pressing the mounting plate 100 can just fill the melt groove 3. The upper mold 5 can be in full contact with the first surface of the body 1 to limit the mounting plate 100, so as to prevent the mounting plate 100 from warping after being squeezed, which does not meet the quality requirements.

[0039] For further information, see Figure 1The body 1 and the riveted part 2 are provided as an integrally formed structure, and there is a smooth transition between the inner ring wall of the body 1 and the inner ring wall of the riveted part 2. That is, in this embodiment, the body 1 and the riveted part 2 form the same inner ring, so as to facilitate the use of the connection function of the sealing riveted bushing.

[0040] Of course, in another embodiment, there are the following differences: the inner ring of the main body 1 and the riveted portion 2 can be provided with a stepped structure to facilitate the connection of a clip of corresponding size, and can be provided according to the actual needs of the clip.

[0041] Furthermore, the glue coating 4 at least covers a portion of the mounting plate 100 that is deformed after riveting is completed, so that the connection between the mounting plate 100 and the sealing riveting bushing is completely sealed. Specifically, in this embodiment, the glue coating 4 completely covers the outer surface of the melting groove 3, and can adhere the mounting plate 100 that flows thereto after deformation to the greatest extent, and achieve sealing.

[0042] In the riveting device used in the above-mentioned riveting process, the diameter of the riveting mechanism 51 of the upper mold 5 is between the maximum diameter and the minimum diameter of the riveting part 2. That is to say, during the process of the riveting mechanism 51 being pressed down, the head of the riveting mechanism 51 can firstly pass through the maximum opening of the riveting part 2 without hindrance. And the riveting mechanism 51 has a preset axial thickness, and during the falling process, the head of the riveting mechanism 51 can contact the inner wall of the riveting part 2 in the area adjacent to the thickness of the mounting plate 100 along the axial direction. After the riveting mechanism 51 is fully pressed down, the riveting mechanism 51 can just make the riveting part 2 turn outward to a sufficient degree, and can just allow a preset amount of the mounting plate 100 to be squeezed into the melt groove 3.

[0043] In the final state of the above-mentioned riveting, the area of ​​the upper mold 5 except the riveting mechanism 51 can be completely fitted with the top surface of the mounting plate 100, and can also contact with the top of the riveted part 2. At the same time, the riveted part 2 is turned outward to a preset state, and the mounting plate 100 is deformed to completely fill the melt groove 3.

[0044] like Figure 4 As shown, it is an example of a use scenario of a sealed riveted bushing. After riveting is completed, the top of the mounting plate 100 is still a complete plane. Therefore, another connecting plate 200 can be set on the top of the mounting plate 100 and connected to other components at the bottom through the holes of the sealed riveted bushing.

[0045] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention's specification and drawings are included in the scope of the present invention.

[0046] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0047] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A sealed riveted bushing for connection with a mounting plate, wherein: The mounting plate has a mounting hole; characterized in that the sealing riveting bushing comprises: A body, the body is arranged in a ring shape extending in the axial direction, and the body has a first surface and a second surface arranged opposite to each other in the axial direction; A riveting part, wherein the riveting part is connected to the first surface of the body, the outer diameter of the riveting part is smaller than the outer diameter of the body, so that the riveting part and the body form an annular step-shaped structure, and the riveting part is turned outward along the axial direction from the first surface of the body, and the maximum outer diameter of the riveting part is smaller than the inner diameter of the mounting hole; the riveting part is used to be further turned outward during the riveting process, so that at least part of the mounting plate is squeezed and deformed by the riveting part during the riveting process; Wherein, the outer wall of the riveted portion is connected to the first surface of the main body with a melting groove recessed inward along the axial direction, the melting groove is used to accommodate at least a part of the mounting plate after deformation, and the surface of the melting groove is provided with glue.

2. The sealing riveting bushing according to claim 1, characterized in that: After riveting is completed, the dimension of the riveted portion along the axial direction is the same as the dimension of the mounting plate along the axial direction.

3. The sealing riveting bushing according to claim 1, characterized in that: The main body and the riveted portion are configured as an integrally formed structure, and the inner annular wall of the main body and the inner annular wall of the riveted portion have a smooth transition.

4. The sealing riveting bushing according to claim 1, characterized in that: The glue coating at least covers a portion of the mounting plate that is deformed after riveting is completed, so that the connection between the mounting plate and the sealing riveting bushing is completely sealed.

5. The sealing riveting bushing according to claim 1, characterized in that: The glue coating is epoxy resin glue or polyurethane glue.

6. A connection structure, comprising a mounting plate and a sealing riveted bushing as claimed in any one of claims 1 to 5, characterized in that: The mounting plate and the sealing riveted bushing are riveted together, and the connection between the mounting plate and the sealing riveted bushing is sealed by means of the glue.

7. A riveting device for riveting a mounting plate and a sealing riveting bushing as claimed in any one of claims 1 to 5, wherein: The riveting device includes an upper die corresponding to one side of the riveting part and a lower die corresponding to one side of the main body, and is characterized in that the upper die has a raised riveting mechanism facing the side of the riveting part, and the riveting mechanism is used to squeeze the riveting part after the upper die is pressed down so that the riveting part is further turned outward.

8. The riveting device according to claim 7, characterized in that: The diameter of the riveting mechanism is between the maximum diameter and the minimum diameter of the riveting part.

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