Riveting connection fastener assembly and installation method

Abstract

The invention discloses a pull rivet connection fastener assembly and an installation method, the assembly comprises a gasket, a gasket, a pull rivet nut and a screw, the pull rivet nut comprises a pull rivet nut head, a pull rivet nut solenoid and a pull rivet nut tail, the pull rivet nut head is provided with an annular groove, the pull rivet nut tail is provided with an internal thread, and the gasket is arranged in the annular groove. The gasket is fixed in an annular groove in the head of the rivet nut, the gasket is arranged on the upper portion of the gasket, the screw is provided with a screw head, a screw neck and a screw threaded section, the screw penetrates through the gasket and the gasket to enter the rivet nut, the screw threaded section is in threaded connection with the tail of the rivet nut, and the screw neck is connected with the gasket. The screw head is in contact fit with the gasket hole. When in use, the assembly is inserted into a mounting hole of a plate to be connected, and the screw is tightened. The rivet nut-screw tightening device is easy and convenient to operate, a product can be mounted and fastened through one rivet nut-screw tightening procedure, the mounting time is saved, and the mounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to a rivet fastening assembly with a completely new structure and an installation method, belonging to the technical field of fasteners. Background Art

[0002] The traditional rivet nut 1 combines the working principle of blind rivets and welding nuts, and is often used for thin plate connection. It is widely used in machinery manufacturing, construction, automobiles and other fields. The installation process is to first put the rivet nut into the hole reserved in advance in the first plate, use the rivet gun to pull the rivet nut upward, and compress the screw tube to fix it on one side of the plate by extrusion deformation to form a solid ring structure - the closed head (such as Figure 1 As shown in the figure, the second plate to be connected is placed, the reserved hole of the plate is aligned with the hole of the rivet nut, and the screw is placed and tightened using the rivet nut thread with a tightening tool to complete the connection and fixation of the two plates. The traditional structure and method are complex and costly. Some products also face space problems and cannot be installed. The installation process is relatively complicated and requires at least two assembly tools, which is costly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pull rivet fastener assembly and an installation method in view of the defects in the prior art.

[0004] To solve this technical problem, the present invention provides a rivet connection fastener assembly, including a washer, a gasket, a rivet nut and a screw. The rivet nut includes a rivet nut head, a rivet nut spiral tube and a rivet nut tail. The rivet nut head is provided with an annular groove, and the rivet nut tail is provided with an internal thread. The gasket is fixed in the annular groove of the rivet nut head, the washer is arranged on the upper part of the gasket, and the screw is provided with a screw head, a screw neck and a screw thread section. The screw passes through the washer and the gasket to enter the rivet nut, the screw thread section is threadedly connected to the rivet nut tail, the screw neck is connected to the gasket, and the screw head is in contact with the gasket hole.

[0005] The washer comprises a washer head and a washer tail, and the washer tail is arranged on the inner side of the gasket; the rivet nut is installed in a mounting hole reserved in advance in the plate, and the washer head contacts the plate to clamp the plate.

[0006] The head of the rivet nut is a flat head or a countersunk head.

[0007] The interior of the rivet nut spiral tube is smooth, and the outer shaft wall is a semi-hexahedron, a semi-octahedron or other polyhedron structure that can prevent the rivet nut from rotating.

[0008] The tail of the rivet nut is a closed blind hole or an unclosed through hole.

[0009] The height of the gasket is designed according to the thickness of the plate to ensure that the head of the gasket contacts the upper plate for clamping the plate.

[0010] The gasket, washer and rivet nut are coaxial after being assembled.

[0011] A cross groove is arranged on the screw head.

[0012] The present invention also provides a method for installing the above-mentioned pull-riveted fastener assembly, comprising the following steps:

[0013] 1) Assemble washers, gaskets, rivet nuts and screws into rivet fastener components;

[0014] 2) Insert the rivet fastener assembly into the pre-reserved mounting hole of the plate to be connected;

[0015] 3) Use a tightening tool to tighten the screws. The rivet nut screw tube of the rivet nut forms a solid annular structure on one side of the lower plate under the action of the tightening torque - the closed head. The gasket is slightly deformed, the washer clamps the upper plate and supports the screw head.

[0016] 4) The two plates are riveted together under the action of axial clamping force.

[0017] The plate comprises an upper plate and a lower plate, each of which is provided with a mounting hole, the centers of the two mounting holes are aligned, and the mounting hole of the lower plate is a polygonal structure, which corresponds to the polyhedron of the outer shaft wall of the rivet nut screw tube, so that the rivet nut-screw is installed and tightened in one tightening process.

[0018] Beneficial effects: Compared with the prior art, the present invention assembles the rivet nut and the screw into a fastening structure. The riveting connection can be completed by only tightening the screw after installation, saving the cost of installing the rivet nut equipment; the present invention is simple and convenient to operate, and the fastening product can be installed by only one tightening process of the rivet nut and the screw, saving installation time and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a traditional rivet nut;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure after assembly of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention after assembly

[0022] Figure 4 For the present invention Figure 3 The local enlarged schematic diagram of point Ⅰ in the middle;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the gasket of the present invention;

[0024] Figure 6 It is a schematic cross-sectional structural diagram of the gasket of the present invention;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the gasket of the present invention

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the rivet nut of the present invention;

[0027] Fig. 9 It is a schematic cross-sectional structure diagram of the rivet nut of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the screw of the present invention;

[0029] Fig.11 It is a three-dimensional structural schematic diagram of two plates of the present invention;

[0030] Fig.12a It is a schematic diagram of the installation structure state of the present invention;

[0031] Figure 12b This is a schematic diagram of the deformation state of the rivet nut in step 3) of the installation method of the present invention;

[0032] Fig.12c Schematic diagram of the micro-deformation state of the gasket in step 3) of the installation method of the present invention.

[0033] In the figure: 1. traditional rivet nut; 2. washer; 3. gasket; 4. rivet nut; 5. screw; 6. rivet connection fastener assembly; 7. plate; 21. washer head; 22. washer tail; 41. rivet nut head; 42. rivet nut screw; 43. rivet nut tail; 51. screw head; 52. screw neck; 53. screw thread section. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0035] like Figure 2-Figure 11As shown, the present invention provides a rivet connection fastener assembly, including a washer 2, a gasket 3, a rivet nut 4 and a screw 5. The rivet nut 4 includes a rivet nut head 41, a rivet nut spiral tube 42 and a rivet nut tail 43. The rivet nut head 41 is provided with an annular groove for stabilizing the gasket 3 and fixing it in place, thereby reducing the plastic strain of the gasket 3; the rivet nut tail 43 is provided with an internal thread, the gasket 3 is fixed in the annular groove of the rivet nut head 41, the washer 2 is arranged on the upper part of the gasket 3, and the screw 5 is provided with a screw head 51, a screw neck 52 and a screw thread section 53. The screw 5 passes through the washer 2 and the gasket 3 and enters the rivet nut 4. The screw thread section 53 is threadedly connected with the rivet nut tail 43, the screw neck 52 is connected with the gasket 3, the screw head 51 is in contact with the washer 2 hole, and the washer 2 plays a fixing and supporting role for the screw head 51.

[0036] The washer 2 includes a washer head 21 and a washer tail 22, and the washer tail 22 is arranged on the inner side of the gasket 3; the rivet nut 4 is installed in a mounting hole reserved in advance in the plate 7, and the washer head 21 contacts the plate 7 to clamp the plate.

[0037] The rivet nut head 41 is a flat head or a countersunk head, and other similar shapes may also be used.

[0038] The interior of the rivet nut spiral tube 42 is smooth, and the outer shaft wall is a semi-hexahedron, a semi-octahedron or other polyhedral structure that can prevent the rivet nut 4 from rotating.

[0039] The rivet nut tail portion 43 is a closed blind hole or an unclosed through hole.

[0040] The height of the gasket 3 is designed according to the thickness of the plate 7 to ensure that the gasket head 21 is in contact with the upper plate for clamping the plate.

[0041] The gasket 3 has a certain strength and is coaxial with the washer 2 and the rivet nut 4 after being assembled; at the same time, it ensures that the rivet nut spiral tube 42 is squeezed and deformed first to form a closed head with a solid annular structure.

[0042] The screw head 51 is provided with a cross groove.

[0043] like Fig.12a , 12b As shown in 12c, the present invention also provides a method for installing the above-mentioned pull-riveted fastener assembly, comprising the following steps:

[0044] 1) Assemble the washer 2, the gasket 3, the rivet nut 4 and the screw 5 into a rivet connection fastener assembly 6;

[0045] 2) inserting the assembled rivet fastener assembly 6 into the pre-reserved mounting hole of the plate 7 to be connected;

[0046] 3) Use a tightening tool to tighten the screw 5. The rivet nut screw 42 of the rivet nut 4 forms a solid annular structure, a closed head, on one side of the lower plate under the action of the tightening torque. The gasket 3 is slightly deformed, and the washer 2 clamps the upper plate and supports the screw head 51.

[0047] 4) The two plates 7 are riveted and fixed together under the action of the axial clamping force.

[0048] The plate 7 includes an upper plate and a lower plate, each of which is provided with a mounting hole, the centers of the two mounting holes are aligned, and the rivet nut 4 is installed in the mounting holes; the mounting hole of the lower plate is a polygonal structure, and the polygonal structure is matched with the polyhedron of the outer shaft wall of the rivet nut screw 42 to achieve installation and tightening of the rivet nut-screw in one tightening process. The integral structure can save installation and tightening time, reduce installation tools, and reduce tool costs.

[0049] The present invention solves the complicated rivet installation process. The rivet connection can be completed by tightening the screws after assembly, which saves the cost of installing the rivet nut equipment. The present invention is simple and convenient to operate. It can install the fastening product by tightening the rivet nut and screw in one process, saving installation time, reducing installation tools, reducing tool costs, and improving installation efficiency.

[0050] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A pull rivet fastener assembly, characterized in that: The invention comprises a washer (2), a gasket (3), a rivet nut (4) and a screw (5), wherein the rivet nut (4) comprises a rivet nut head (41), a rivet nut spiral tube (42) and a rivet nut tail (43), wherein the rivet nut head (41) is provided with an annular groove, and the rivet nut tail (43) is provided with an internal thread, wherein the gasket (3) is fixed in the annular groove of the rivet nut head (41), wherein the washer (2) is arranged on the upper part of the gasket (3), and wherein the screw (5) is provided with a screw head (51), a screw neck (52) and a screw thread section (53), wherein the screw (5) passes through the washer (2) and the gasket (3) and enters the rivet nut (4), wherein the screw thread section (53) is threadedly connected with the rivet nut tail (43), wherein the screw neck (52) is connected with the gasket (3), and the screw head (51) is in contact with and matched with the hole of the washer (2).

2. The pull rivet fastener assembly according to claim 1, characterized in that: The washer (2) comprises a washer head (21) and a washer tail (22), and the washer tail (22) is arranged on the inner side of the gasket (3); the rivet nut (4) is installed in a mounting hole reserved in advance in the plate (7), and the washer head (21) contacts the plate (7) to clamp the plate.

3. The pull rivet fastener assembly according to claim 1, characterized in that: The rivet nut head (41) is a flat head or a countersunk head.

4. The pull rivet fastener assembly according to claim 1, characterized in that: The interior of the rivet nut spiral tube (42) is smooth, and the outer shaft wall is a semi-hexahedron, a semi-octahedron or other polyhedral structure that can prevent the rivet nut (4) from rotating.

5. The pull rivet fastener assembly according to claim 1, characterized in that: The rivet nut tail (43) is a closed blind hole or an unclosed through hole.

6. The pull rivet fastener assembly according to claim 1, characterized in that: The height of the gasket (3) is designed according to the thickness of the plate (7) to ensure that the gasket head (21) is in contact with the upper plate (7) for clamping the plate.

7. The pull rivet fastener assembly according to claim 1, characterized in that: The gasket (3) is coaxial with the washer (2) and the rivet nut (4) after being assembled.

8. The pull rivet fastener assembly according to any one of claims 1 to 7, characterized in that: The screw head (51) is provided with a cross groove.

9. A method for installing a new type of pull-riveted fastener assembly according to any one of claims 1 to 8, characterized in that: The steps include: 1) Assembling a washer (2), a gasket (3), a rivet nut (4) and a screw (5) into a rivet connection fastener assembly (6); 2) inserting the rivet fastener assembly (6) into the pre-reserved mounting hole of the plate (7) to be connected; 3) Using a tightening tool to tighten the screw (5), the rivet nut screw tube (42) of the rivet nut (4) forms a solid annular structure, i.e., a closed head, on one side of the lower plate under the action of the tightening torque, the gasket (3) is slightly deformed, the washer (2) clamps the upper plate and supports the screw head (51); 4) The two plates (7) are riveted together under the action of the axial clamping force.

10. The method for installing the new type of pull rivet fastener assembly according to claim 9, characterized in that: The plate (7) comprises an upper plate and a lower plate, each of which is provided with a mounting hole, the centers of the two mounting holes are aligned, and the mounting hole of the lower plate is a polygonal structure, the polygonal structure corresponds to the polyhedron of the outer shaft wall of the rivet nut screw (42), so that the rivet nut-screw is installed and tightened in one tightening process.

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