Rivet with stress deformation resistance structure

Abstract

The rivet comprises a rivet head, a rivet rod is fixedly connected to the lower portion of the rivet head, a sliding groove is formed in the rivet rod, a connecting groove communicated with the sliding groove is formed in the middle of the rivet head, an installation rod is slidably connected to the interiors of the sliding groove and the connecting groove, and the installation rod is connected with the rivet head. An extrusion block is fixedly connected to the lower portion of the mounting rod, four sets of communicating grooves are formed in the side wall of the rivet rod, pushing pieces are slidably connected into the communicating grooves, inclined grooves are formed in the inner walls of the pushing pieces, pushing rings are slidably connected into the sliding grooves, and the mounting rod is slidably connected into the pushing rings. Four sets of pushing blocks are fixedly connected to the outer side of the pushing ring and slidably connected into the inclined grooves, and the situation that due to the fact that gaps exist between the rivet rods and the mounting holes, stress distribution is uneven, stress in some areas is concentrated, stress in other areas is insufficient, and the rivets lose efficacy too early or performance is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rivets, in particular to a rivet with an anti-stress deformation structure. Background Art

[0002] A rivet is a nail-shaped object used to connect two parts (or components) with through holes. It uses its own deformation or interference to connect the riveted parts. Its head and shank constitute a type of fastener. There are many types of rivets, including but not limited to R-type rivets, fan rivets, blind rivets, tree rivets, semi-round head rivets, flat head rivets, semi-hollow rivets, solid rivets, countersunk rivets, etc.

[0003] When installing existing rivets, there may be a gap between the rivet and the mounting hole, and the gap between the rivet rod and the mounting hole may affect the stress of rivet installation. This gap may cause the rivet to fail to achieve an ideal tight fit during installation, thereby affecting the fixing effect of the rivet and the stability of the overall structure. Utility Model Content

[0004] The purpose of the utility model is to provide a rivet with an anti-stress deformation structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rivet with an anti-stress deformation structure, comprising a rivet head, a rivet rod fixedly connected to the lower part of the rivet head, a sliding groove is provided inside the rivet rod, a connecting groove communicated with the sliding groove is provided in the middle part of the rivet head, a mounting rod is slidably connected to the sliding groove and the connecting groove, an extrusion block is fixedly connected to the lower part of the mounting rod, four groups of connecting grooves are provided on the side wall of the rivet rod, a push sheet is slidably connected to the connecting groove, an oblique groove is provided on the inner wall of the push sheet, a push ring is slidably connected to the sliding groove, the mounting rod is slidably connected to the inside of the push ring, four groups of push blocks are fixedly connected to the outside of the push ring, and the push blocks are slidably connected to the inside of the oblique groove.

[0006] Preferably, the inner diameter of the connecting groove is smaller than the inner diameter of the sliding groove, the upper portion of the pushing ring is fixedly connected to a first spring, and the upper portion of the first spring is fixedly connected to the lower wall of the rivet head.

[0007] Preferably, a control groove communicating with the connecting groove is formed on the side wall of the rivet rod, and connecting ears are fixedly connected to the upper and lower sides of the push plate, and the connecting ears are slidably connected to the inner wall of the control groove.

[0008] Preferably, a sliding rod is fixedly connected to the inside of the control groove, and the sliding rod is slidably connected to the inside of the connecting ear. A second spring is fixedly connected to one side of the connecting ear, and the second spring is sleeved on the outside of the sliding rod. The other end of the second spring is fixedly connected to the inner wall of the control groove.

[0009] Preferably, the extrusion block is a structure that is narrow at the top and wide at the bottom, and the upper diameter of the extrusion block is larger than the inner diameter of the push ring.

[0010] Preferably, a threaded rod is fixedly connected to the upper portion of the mounting rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model cooperates with the use of the installation screw rod, the connecting seat, the fixing ring, the piston rod, the square head, the first ball and the second ball, and the external rivet gun cooperates with the threaded rod to drive the installation rod to move upward, the extrusion block enters the interior of the rivet rod, causes the lower part of the rivet rod to expand, completes the rivet installation, the extrusion block pushes the pushing ring to move upward, the pushing block moves upward along the inclined groove, and the pushing block pushes the pushing piece to move outward so that the pushing piece is closely attached to the interior of the fastening hole, so that the rivet rod can be tightly connected with the inner wall of the fastening hole, and the gap between the rivet rod and the installation hole can be prevented, resulting in uneven stress distribution, which makes the stress in some areas concentrated, while the stress in other areas is insufficient, resulting in premature failure of the rivet or performance degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0014] Figure 2 This is a cross-sectional view of the three-dimensional structure of the utility model from a second viewing angle;

[0015] Figure 3 This is a sectional view of the three-dimensional structure of the utility model from a third viewing angle;

[0016] Figure 4 This is a cross-sectional view of the connecting groove structure from the fourth viewing angle of the utility model.

[0017] In the figure: 1, rivet head; 2, rivet rod; 3, sliding groove; 4, connecting groove; 5, pushing ring; 6, pushing block; 7, first spring; 8, inclined groove; 9, connecting groove; 10, pushing plate; 11, ear; 12, sliding rod; 13, second spring; 14, control groove; 15, extrusion block; 16, threaded rod; 17, mounting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4The utility model provides a technical solution: a rivet with an anti-stress deformation structure, including a rivet head 1, a rivet rod 2 is fixedly welded at the lower part of the rivet head 1, a sliding groove 3 is opened inside the rivet rod 2, a connecting groove 4 communicating with the sliding groove 3 is opened in the middle of the rivet head 1, a mounting rod 17 is slidably connected inside the sliding groove 3 and the connecting groove 4, an extrusion block 15 is fixedly welded at the lower part of the mounting rod 17, four groups of connecting grooves 9 are opened on the side wall of the rivet rod 2, a push piece 10 is slidably connected inside the connecting groove 9, and a push piece 10 is slidably connected inside the push piece 10. The inner wall of the moving plate 10 is provided with an oblique groove 8, the sliding groove 3 is slidably connected with a push ring 5, the mounting rod 17 is slidably connected to the inside of the push ring 5, four groups of push blocks 6 are fixedly welded on the outside of the push ring 5, the push blocks 6 are slidably connected to the inside of the oblique groove 8, when the mounting rod 17 moves upward, the extrusion block 15 enters the inside of the rivet rod 2, the extrusion block 15 pushes the push ring 5 to move upward, the push block 6 moves upward along the oblique groove 8, and the push block 6 pushes the push plate 10 to move outward, so that the push plate 10 is close to the inside of the fastening hole;

[0020] The inner diameter of the connecting groove 4 is smaller than the inner diameter of the sliding groove 3. The upper part of the push ring 5 is fixedly welded with a first spring 7. The upper part of the first spring 7 is fixedly welded to the lower wall of the rivet head 1. The first spring 7 pushes the push ring 5 to move downward, so that the push block 6 is fixed to the lower part of the inclined groove 8; the side wall of the rivet rod 2 is provided with a control groove 14 connected to the connecting groove 9, and the upper and lower sides of the push piece 10 are fixedly welded with ears 11. The ears 11 are slidably installed on the inner wall of the control groove 14 to ensure that the push piece 10 does not separate from the connecting groove 9 and the movement position is limited; the inside of the control groove 14 is fixedly welded with a sliding rod 12, and the sliding rod 12 is slidably connected to the inside of the ear 11, and one side of the ear 11 is fixedly welded to the inner wall of the control groove 14 to ensure that the push piece 10 does not separate from the connecting groove 9 and the movement position is limited; the inside of the control groove 14 is fixedly welded with a sliding rod 12, and the sliding rod 12 is slidably connected to the inside of the ear 11. A second spring 13 is fixedly welded, and the second spring 13 is sleeved on the outside of the sliding rod 12. The other end of the second spring 13 is fixedly welded to the inner wall of the control groove 14. The second spring 13 pushes the ear 11 to move the push sheet 10 inward, so that the push sheet 10 does not affect the installation when the rivet rod 2 is installed; the extrusion block 15 is a narrow upper and wide lower structure, and the upper diameter of the extrusion block 15 is larger than the inner diameter of the push ring 5, ensuring that the extrusion block 15 can push the push ring 5 to move upward, and the extrusion block 15 pushes the lower part of the rivet rod 2 to expand, completing the installation of the rivet; a threaded rod 16 is fixedly welded on the upper part of the installation rod 17, which cooperates with an external rivet gun to drive the installation rod 17 to move upward.

[0021] Working principle: When the utility model is in use, the external rivet gun cooperates with the threaded rod 16 to drive the installation rod 17 to move upward, the extrusion block 15 enters the rivet rod 2, causes the lower part of the rivet rod 2 to expand, and completes the rivet installation. The extrusion block 15 pushes the push ring 5 to move upward, and the push block 6 moves upward along the inclined groove 8. The push block 6 pushes the push sheet 10 to move outward, so that the push sheet 10 is close to the inside of the fastening hole.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rivet with a stress-resistant deformation structure, comprising a rivet head (1), characterized in that: The lower part of the rivet head (1) is fixedly connected to a rivet rod (2), a sliding groove (3) is provided inside the rivet rod (2), a connecting groove (4) communicating with the sliding groove (3) is provided in the middle part of the rivet head (1), a mounting rod (17) is slidably connected inside the sliding groove (3) and the connecting groove (4), a pressing block (15) is fixedly connected to the lower part of the mounting rod (17), four groups of connecting grooves (9) are provided on the side wall of the rivet rod (2), a pushing sheet (10) is slidably connected inside the connecting groove (9), an oblique groove (8) is provided on the inner wall of the pushing sheet (10), a pushing ring (5) is slidably connected inside the sliding groove (3), the mounting rod (17) is slidably connected inside the pushing ring (5), four groups of pushing blocks (6) are fixedly connected to the outside of the pushing ring (5), and the pushing blocks (6) are slidably connected inside the oblique groove (8).

2. The rivet with stress-resistant deformation structure according to claim 1, characterized in that: The inner diameter of the connecting groove (4) is smaller than the inner diameter of the sliding groove (3); the upper portion of the pushing ring (5) is fixedly connected to a first spring (7); and the upper portion of the first spring (7) is fixedly connected to the lower wall of the rivet head (1).

3. The rivet with stress-resistant deformation structure according to claim 1, characterized in that: The side wall of the rivet rod (2) is provided with a control groove (14) which is in communication with the connecting groove (9); the upper and lower sides of the push plate (10) are fixedly connected with connecting ears (11); and the connecting ears (11) are slidably connected to the inner wall of the control groove (14).

4. The rivet with stress-resistant deformation structure according to claim 3, characterized in that: A sliding rod (12) is fixedly connected inside the control groove (14), and the sliding rod (12) is slidably connected inside the connection ear (11). A second spring (13) is fixedly connected to one side of the connection ear (11), and the second spring (13) is sleeved on the outside of the sliding rod (12). The other end of the second spring (13) is fixedly connected to the inner wall of the control groove (14).

5. The rivet with stress-resistant deformation structure according to claim 1, characterized in that: The extrusion block (15) is a structure that is narrow at the top and wide at the bottom, and the diameter of the upper part of the extrusion block (15) is larger than the inner diameter of the push ring (5).

6. The rivet with stress-resistant deformation structure according to claim 1, characterized in that: The upper portion of the mounting rod (17) is fixedly connected to a threaded rod (16).

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