Pull rivets and vehicles

Abstract

The utility model discloses a rivet and a vehicle, wherein the rivet comprises a rivet bolt and a rivet nut, wherein the rivet bolt comprises a screw and a nut, wherein one end of the screw adjacent to the nut has a sealing groove, wherein the sealing groove is arranged around the axis of the screw; wherein the rivet nut comprises a nut body and a flange portion, wherein the rivet nut has a center hole penetrating the nut body and the flange portion, wherein one end of the screw passes through the center hole and the nut abuts against the nut body, wherein a protrusion is arranged around the axis of the screw, wherein at least a portion of the protrusion extends into the sealing groove and is sealed with the sealing groove. The rivet disclosed in the present invention has the advantage of good sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of pull rivets, in particular to a pull rivet and a vehicle. Background Art

[0002] Rivets are a commonly used riveting fastener, mainly used to connect two or more metal objects, and are widely used in the fields of automobiles, ships, aircraft, construction, machinery, etc. Rivets are usually composed of a rivet stud and a rivet nut threaded together. During the installation process, the rivet stud is pulled by the riveting equipment to tighten the rivet nut and form a firm connection. In the related art, since the rivet stud and the rivet nut are threadedly connected, after the rivet is installed, air or water leakage is likely to occur at the threaded connection, resulting in poor sealing effect of the rivet. Utility Model Content

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiments of the present disclosure provide a rivet with good sealing effect, and the embodiments of the present disclosure provide a vehicle with good sealing effect and low process cost.

[0004] The rivet disclosed in the present invention comprises a rivet bolt and a rivet nut, wherein the rivet bolt comprises a screw rod and a nut, wherein one end of the screw rod adjacent to the nut rod is provided with a sealing groove, wherein the sealing groove is arranged around the axis of the screw rod; the rivet nut comprises a nut body and a flange portion, wherein the rivet nut has a center hole penetrating the nut body and the flange portion, wherein one end of the screw rod passes through the center hole and the nut is stopped on the nut body, wherein a protrusion is provided on the hole wall of the center hole, wherein the protrusion is arranged around the axis of the screw rod, and at least a portion of the protrusion extends into the sealing groove and is sealed with the sealing groove.

[0005] In some embodiments, the depth of the sealing groove is 0.5 mm-1 mm.

[0006] In some embodiments, the number of the sealing grooves and the number of the protrusions are both plural, and the plurality of sealing grooves are spaced apart in the axial direction of the screw and matched with the plurality of protrusions in a one-to-one correspondence.

[0007] In some embodiments, one end of the screw rod adjacent to the nut further has an anti-rotation groove, and the anti-rotation groove extends along the axial direction of the screw rod.

[0008] In some embodiments, the anti-rotation groove has a V-shape in a cross section perpendicular to the axial direction of the screw.

[0009] In some embodiments, the number of the anti-rotation grooves is plural.

[0010] In some embodiments, the plurality of anti-rotation grooves are divided into a plurality of groups, the plurality of anti-rotation groove groups are arranged at intervals along the axial direction of the screw, and the anti-rotation groove groups include a plurality of anti-rotation grooves arranged at intervals along the radial direction of the screw.

[0011] In some embodiments, there are multiple sealing grooves, and the multiple sealing grooves and the multiple anti-rotation groups are alternately arranged in sequence in the axial direction of the screw.

[0012] In some embodiments, one end of the screw rod away from the nut has an external thread for connecting with a riveting device.

[0013] In some embodiments, the rivet bolt and / or the rivet nut are made of steel, aluminum or copper.

[0014] The vehicle of the embodiment of the present disclosure includes the pull rivet described in any of the above embodiments.

[0015] When assembling the rivet disclosed in the present invention, first one end of the screw rod is passed through the center hole of the rivet nut, and then the nut body is extruded in the radial direction of the screw rod. Since the screw rod is provided with a sealing groove, the material of the nut body flows into the sealing groove under the action of external force extrusion to form a raised portion that seals with the sealing groove, thereby completing the connection and sealing between the rivet bolt and the rivet nut, and avoiding the occurrence of air leakage or water leakage at the connection between the rivet bolt and the rivet nut. Compared with the threaded connection between the rivet bolt and the rivet nut in the related art, the sealing effect of the rivet is greatly improved.

[0016] Therefore, the rivet disclosed in the present invention has the advantage of good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the rivet structure of an embodiment of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a pull rivet bolt according to an embodiment of the utility model.

[0019] Figure 3 It is a partial structural schematic diagram of a rivet bolt according to an embodiment of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a rivet nut according to an embodiment of the utility model.

[0021] Figure 5 It is a partial cross-sectional view of the rivet according to the embodiment of the utility model.

[0022] Reference numerals:

[0023] 100, pull rivet; 1, pull rivet bolt; 101, screw rod; 102, nut; 103, sealing groove; 104, anti-rotation groove; 2, pull rivet nut; 201, nut body; 202, flange; 203, raised part. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0025] like Figures 1 to 5 As shown, the rivet 100 of the embodiment of the utility model comprises a rivet bolt 1 and a rivet nut 2. The rivet bolt 1 comprises a screw rod 101 and a nut 102. The screw rod 101 has a sealing groove 103 at one end adjacent to the nut 102. The sealing groove 103 is arranged around the axis of the screw rod 101. The rivet nut 2 comprises a nut body 201 and a flange portion 202. The rivet nut 2 has a central hole penetrating the nut body 201 and the flange portion 202. One end of the screw rod 101 passes through the central hole and the nut 102 abuts against the nut body 201. The wall of the central hole has a protrusion 203. The protrusion 203 is arranged around the axis of the screw rod 101. At least a portion of the protrusion 203 extends into the sealing groove 103 and is sealed with the sealing groove 103.

[0026] Specifically, when assembling the rivet 100 of the embodiment of the utility model, firstly, one end of the screw 101 is passed through the central hole of the rivet nut 2, and then the nut body 201 is squeezed radially along the screw 101. Since the screw 101 has a sealing groove 103, the nut body 201 is squeezed by an external force, and the material of the nut body 201 flows into the sealing groove 103 to form a raised portion 203 that seals with the sealing groove 103, thereby completing the connection and sealing between the rivet bolt 1 and the rivet nut 2, and avoiding the occurrence of air leakage or water leakage at the connection between the rivet bolt 1 and the rivet nut 2. Compared with the threaded connection between the rivet bolt and the rivet nut in the related art, the sealing effect of the rivet 100 is greatly improved.

[0027] Therefore, the rivet 100 according to the embodiment of the utility model has the advantage of good sealing effect.

[0028] In addition, since the sealing effect of the threaded connection between the rivet bolt and the rivet screw of the rivet in the related art is poor, after installation, sealant is usually applied to the threaded connection area between the rivet bolt and the rivet screw to meet the waterproof sealing requirements of the rivet. The rivet 100 of the embodiment of the utility model can eliminate the cost of glue coating while meeting the waterproof sealing requirements in the product category with waterproof requirements, thereby reducing the process cost and achieving the goal of process cost reduction.

[0029] In some embodiments, the depth of the sealing groove 103 is 0.5 mm-1 mm. For example, the depth of the sealing groove 103 is 0.5 mm, 0.8 mm or 1 mm. If the depth of the sealing groove 103 is set too small, the convex portion 203 formed by the nut body 201 flowing into the sealing groove 10 after being squeezed by external force will be small in size, resulting in poor sealing effect. If the depth of the sealing groove 103 is set too large, it will be difficult for the material flow to completely fill the sealing groove 103 after the nut body 201 is squeezed by external force, which will also affect its sealing effect.

[0030] Optionally, there are multiple sealing grooves 103 and multiple protrusions 203, and the multiple sealing grooves 103 are arranged at intervals in the axial direction of the screw rod 101 and are matched with the multiple protrusions 203 one by one. By providing multiple sealing grooves 103, a multi-level seal can be formed between the rivet bolt 1 and the rivet nut 2, thereby avoiding the sealing failure of the rivet 100 due to the sealing failure of a certain sealing groove 103, which is conducive to improving the sealing reliability.

[0031] In some embodiments, the end of the screw rod 101 adjacent to the nut 102 further has an anti-rotation groove 104, and the anti-rotation groove 104 extends along the axial direction of the screw rod 101. It should be noted that during the crimping process of the nut body 201, the material of the nut body 201 after being squeezed will also flow into the anti-rotation groove 104 and cooperate with the anti-rotation groove 104 to achieve the purpose of anti-rotation of the rivet nut 2.

[0032] Optionally, the cross section of the anti-rotation groove 104 perpendicular to the axial direction of the screw 101 is V-shaped. It should be noted that when the anti-rotation groove 104 is processed by cold pressing, since the cross section of the anti-rotation groove 104 is V-shaped, the cross section of the cold pressing mold is also V-shaped corresponding to the V-shaped cross section of the anti-rotation groove 104. The tip of the cold pressing mold can easily squeeze the material of the screw 101 and make it flow and form quickly, so that the processing and manufacturing of the anti-rotation groove 104 is simple and convenient. Of course, in other embodiments, the cross section of the anti-rotation groove 104 can also be other shapes such as U-shaped or rectangular.

[0033] Optionally, there are multiple anti-rotation grooves 104 so that the rivet nut 2 has multiple anti-rotation force points to increase the rotational torque of the rivet nut 2, which is beneficial to improving the anti-rotation reliability of the rivet nut 2.

[0034] In some embodiments, the plurality of anti-rotation grooves 104 are divided into a plurality of groups, wherein the plurality of anti-rotation groove groups are arranged at intervals along the axial direction of the screw 101, and the anti-rotation groove groups include a plurality of anti-rotation grooves 104 arranged at intervals along the radial direction of the screw 101. Figure 2 and Figure 3As shown, the plurality of anti-rotation grooves 104 are divided into three groups, and the three anti-rotation groove groups are spaced apart in the axial direction of the screw rod 101 , so as to further improve the rotation torque of the rivet nut 2 , and further help to improve the anti-rotation reliability of the rivet nut 2 .

[0035] In some embodiments, the end of the screw rod 101 away from the nut 102 has an external thread for connecting to a rivet device, and the external thread of the screw rod 101 can be used to achieve a quick connection with the rivet device to improve the connection efficiency of the rivet 100. Specifically, the rivet device drives the screw rod 101 to move in the axial direction of the screw rod 101, so that the nut 102 squeezes the nut body 201 in the axial direction of the screw rod 101 to deform, and the nut body 201 is matched with the flange part 202 after deformation, and clamps and fixes the connected part in the axial direction of the screw rod 101.

[0036] Optionally, the rivet bolt 1 and / or the rivet nut 2 are made of steel, aluminum or copper.

[0037] The vehicle of the utility model embodiment includes the rivet 100 described in any of the above embodiments. In the automotive industry, the waterproof requirements for fasteners are getting higher and higher. The rivet 100 of the utility model embodiment achieves the functional upgrade based on the existing products and the benefit goal of reducing the process cost under the same functional requirements. Therefore, the vehicle of the utility model embodiment has the advantages of good sealing effect and low process cost.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A rivet, characterized in that: include: A pull rivet bolt, comprising a screw rod and a nut, wherein one end of the screw rod adjacent to the nut has a sealing groove, and the sealing groove is arranged around the axis of the screw rod; and A pull rivet nut, comprising a nut body and a flange portion, wherein the pull rivet nut has a center hole penetrating the nut body and the flange portion, one end of the screw rod passes through the center hole and the nut abuts against the nut body, a protrusion is provided on the hole wall of the center hole, the protrusion is arranged around the axis of the screw rod, and at least a portion of the protrusion extends into the sealing groove and seals with the sealing groove.

2. The pull rivet according to claim 1, characterized in that: The depth of the sealing groove is 0.5mm-1mm.

3. The pull rivet according to claim 2, characterized in that: There are multiple sealing grooves and multiple protrusions, and the multiple sealing grooves are arranged at intervals in the axial direction of the screw and matched with the multiple protrusions in a one-to-one correspondence.

4. The pull rivet according to claim 1, characterized in that: One end of the screw rod adjacent to the nut is also provided with an anti-rotation groove, and the anti-rotation groove extends along the axial direction of the screw rod.

5. The pull rivet according to claim 4, characterized in that: The anti-rotation groove has a V-shape in a cross section perpendicular to the axial direction of the screw.

6. The pull rivet according to claim 4, characterized in that: The number of the anti-rotation grooves is multiple.

7. The pull rivet according to claim 6, characterized in that: The plurality of anti-rotation grooves are divided into a plurality of groups, wherein the plurality of anti-rotation groove groups are arranged at intervals along the axial direction of the screw rod, and the anti-rotation groove groups include a plurality of anti-rotation grooves arranged at intervals along the radial direction of the screw rod.

8. The pull rivet according to any one of claims 1 to 7, characterized in that: One end of the screw rod away from the nut has an external thread for connecting with a riveting device.

9. The pull rivet according to any one of claims 1 to 7, characterized in that: The rivet bolt and / or the rivet nut are made of steel, aluminum or copper.

10. A vehicle, characterized in that: The vehicle comprises the pull rivet according to any one of claims 1-9.

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