Self-puncturing pressing rivet nut

Abstract

The utility model discloses a self-puncturing pressing rivet nut which comprises a nut body, an undercut groove is formed in the nut body, the inner wall of one side of the undercut groove is in a concave state, a plurality of stabilizing plates are installed on the inner wall of the other side of the undercut groove, an inner cavity and an outer cavity are formed in the nut body, a rotating ring is arranged in the outer cavity in a rotating mode, and the stabilizing plates are arranged in the rotating ring. A rotating groove is formed in the inner wall of one side of the outer cavity, a driving gear is arranged in the rotating groove, the driving gear is connected with the rotating ring through a rotating mechanism, and two screw rods are rotationally arranged in the inner cavity. According to the nut, the screw, the connecting plate and the positioning rod are arranged, the positioning assembly is arranged on the nut body, a positioning groove can be formed in a bolt assembly matched with the positioning assembly for use, the stability when the nut body and the bolt assembly are connected can be achieved through mutual matching of the positioning assembly and the positioning groove, and the structure of the nut body is enriched through matching of the assemblies; and thus, the functionality of the fabric is enriched.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure riveted nuts, in particular to a self-piercing pressure riveted nut. Background Art

[0002] A self-clinching nut is a nut used on thin plates or sheet metals. The pressure is used to squeeze the teeth of the nut into the plate to cause plastic deformation around the pre-set hole. The deformed object is squeezed into the guide groove, thereby producing a locking effect. Self-piercing self-clinching nut is a type of self-piercing nut. The difference from ordinary self-piercing rivet nuts is that self-piercing self-piercing rivet nuts do not require pre-drilling holes on the plate. They can directly penetrate the plate and form internal threads to achieve the connection between the nut and the plate.

[0003] The problem with the self-piercing rivet nut in the prior art is that, although the connection stability between the nut and the connecting piece is continuously improved, the bolt assembly connected thereto is not taken into consideration. After the bolt assembly is connected to the nut body, it often becomes loose due to vibration and accidental contact, and since the nut body is not provided with a corresponding stabilizing assembly, its overall structure is simple, and therefore it does not have the function of achieving a stable connection with the bolt assembly. In order to enrich its structure and functionality, a self-piercing rivet nut is proposed herein. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a self-piercing pressure riveting nut.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-piercing self-clinching nut comprises a nut body, a bottom cut groove is provided on the nut body, the inner wall on one side of the bottom cut groove is in a concave state, and a plurality of stabilizing plates are installed on the inner wall on the other side of the bottom cut groove, an inner cavity and an outer cavity are provided inside the nut body, a rotating ring is provided for rotation in the outer cavity, a rotating groove is provided on the inner wall on one side of the outer cavity, a driving gear is provided in the rotating groove, the driving gear is connected to the rotating ring through a rotating mechanism, two screws are provided for rotation in the inner cavity, the ends of the two screws extend into the outer cavity and are connected to the rotating ring through a transmission mechanism, a movable opening communicating with the thread groove and the inner cavity is provided on the arc-shaped inner wall of the nut body, a positioning rod is provided in the movable opening, and the positioning rod is connected to the screw through a connecting mechanism.

[0007] Preferably, the rotating mechanism comprises a side gear ring arranged on the arc-shaped outer wall of the rotating ring, and the driving gear is meshed with the side gear ring.

[0008] Preferably, the transmission mechanism comprises a transmission gear disposed on the end of the screw, and the transmission gear is meshed with the lower gear ring.

[0009] Preferably, the connection mechanism comprises a connection plate threadedly sleeved on the outer wall of the screw rod, and the end of the positioning rod is mounted on the outer wall of the connection plate.

[0010] Preferably, a hidden groove is provided on the outer wall of the nut body, a rotating block is rotatably provided in the hidden groove, and the rotating block is connected to the driving gear through a rotating rod.

[0011] Preferably, the number of the positioning rods is two, the number of the stabilizing plates is eight, and the two positioning rods and the eight stabilizing plates are circumferentially distributed with equal intervals.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting a screw rod, a connecting plate and a positioning rod, a positioning component is provided on the nut body, and a positioning groove can be provided on the bolt assembly used therewith. The two cooperate with each other to achieve stability when the nut body and the bolt assembly are connected. The combination of the above components enriches the structure of the nut body, thereby enriching its functionality.

[0014] 2. By setting components such as a rotating block, a rotating rod, a driving gear, a rotating ring, a side gear ring, a lower gear ring and a screw rod, the synchronous adjustment operation of the two positioning rods is realized, which ensures the linkage effect of the device and thus ensures the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a self-piercing rivet nut proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the vertical section structure;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure at B;

[0019] Figure 5 It is a schematic diagram of the structure of components such as a rotating ring and a screw.

[0020] In the figure: 1 nut body, 2 bottom cut groove, 3 stabilizing plate, 4 inner cavity, 5 outer cavity, 6 positioning rod, 7 rotating ring, 8 rotating rod, 9 rotating block, 10 side gear ring, 11 lower gear ring, 12 rotating groove, 13 driving gear, 14 screw rod, 15 transmission gear, 16 connecting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A self-piercing self-clinching nut comprises a nut body 1, an undercut groove 2 is arranged on the nut body 1, the inner wall on one side of the undercut groove 2 is in a concave state, and a plurality of stabilizing plates 3 are installed on the inner wall on the other side of the undercut groove 2. When the connecting piece is partially squeezed into the undercut groove 2, the contact area increases. By relying on the concave state of the inner wall on one side of the undercut groove 2 and the plurality of stabilizing plates 3, the stability of the connecting piece in the undercut groove 2 is effectively guaranteed, and the connection between the nut body 1 and the connecting piece is effectively guaranteed.

[0023] An inner cavity 4 and an outer cavity 5 are provided inside the nut body 1, a rotating ring 7 is rotatably provided in the outer cavity 5, a rotating groove 12 is provided on the inner wall of one side of the outer cavity 5, a driving gear 13 is provided in the rotating groove 12, and the driving gear 13 is connected to the rotating ring 7 through a rotating mechanism, two screws 14 are rotatably provided in the inner cavity 4, the ends of the two screws 14 extend into the outer cavity 5 and are connected to the rotating ring 7 through a transmission mechanism, a movable opening communicating with the thread groove and the inner cavity 4 is provided on the arc-shaped inner wall of the nut body 1, a positioning rod 6 is provided in the movable opening, and the positioning rod 6 is connected to the screw 14 through a connecting mechanism.

[0024] The rotating mechanism includes a side gear ring 10 arranged on the arc-shaped outer wall of the rotating ring 7, and the driving gear 13 is meshed with the side gear ring 10. The transmission mechanism includes a transmission gear 15 arranged on the end of the screw 14, and the transmission gear 15 is meshed with the lower gear ring 11. The teeth of the above-mentioned side gear ring 10 are arranged on its arc-shaped outer wall and meshed with the teeth on the arc-shaped outer wall of the driving gear 13. The teeth of the above-mentioned lower gear ring 11 are arranged on its bottom wall and meshed with the teeth on the arc-shaped outer wall of the transmission gear 15. Relying on the above-mentioned driving gear 13, the side gear ring 10, the lower gear ring 11 and the transmission gear 15, the transmission of power generated by the rotation of the rotating rod 8 is realized, and finally the screw 14 is driven to rotate.

[0025] The connecting mechanism includes a connecting plate 16 threadedly sleeved on the outer wall of the screw rod 14, the end of the positioning rod 6 is installed on the outer wall of the connecting plate 16, the positioning rod 6 is never separated from the movable opening, and the connecting plate 16 is limited by the positioning rod 6, so that the connecting plate 16 does not rotate with the screw rod 14, and has a self-limiting ability.

[0026] A hidden groove is provided on the outer wall of the nut body 1, and a rotating block 9 is rotatably provided in the hidden groove. The rotating block 9 is connected to the driving gear 13 through a rotating rod 8. The rotating block 9 can realize the rotation operation of the rotating rod 8, and is hidden in the hidden groove, which can effectively avoid accidental touch and ultimately cause the rotation of the screw 14.

[0027] There are two positioning rods 6 and eight stabilizing plates 3. The two positioning rods 6 and the eight stabilizing plates 3 are evenly spaced around the circumference. The evenly spaced distribution arrangement ensures uniform force.

[0028] When the utility model is used, when the nut body 1 is riveted, the connecting piece is partially squeezed into the bottom cut groove 2. Since the inner wall on one side of the bottom cut groove 2 is concave and a plurality of stabilizing plates 3 are provided, the contact area between the two is increased, thereby increasing the stability when the nut body 1 and the connecting piece are connected. A positioning groove corresponding to the positioning rod 6 is provided on the outer wall of the bolt assembly used in accordance with the nut body 1 in this scheme. After the bolt assembly is threadedly connected to the nut body 1, the rotating block 9 in the hidden groove is rotated. The rotating block 9 can drive the active gear 13 to rotate with the help of the rotating rod 8. When the active gear 13 rotates, the side gear ring 10 meshing with it can be driven to rotate. The side gear ring 10 can drive the lower gear ring 11 to rotate with the help of the rotating ring 7. When the lower gear ring 11 rotates, the screw 14 can be driven to rotate with the help of the transmission gear 15. When the screw 14 rotates, the connecting plate 16 on its outer wall will drive the positioning rod 6 to move, and the positioning rod 6 moves out of the movable opening and finally enters the positioning operation on the outer wall of the bolt assembly to achieve a stable connection between the two.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-piercing self-clinching nut, comprising a nut body (1), characterized in that: A bottom cut groove (2) is provided on the nut body (1), the inner wall of one side of the bottom cut groove (2) is in a concave state, and a plurality of stabilizing plates (3) are installed on the inner wall of the other side of the bottom cut groove (2). An inner cavity (4) and an outer cavity (5) are provided inside the nut body (1), a rotating ring (7) is rotatably provided in the outer cavity (5), a rotating groove (12) is provided on the inner wall of one side of the outer cavity (5), a driving gear (13) is provided in the rotating groove (12), and the driving gear (13) is connected to the rotating ring (7) through a rotating mechanism, two screw rods (14) are rotatably provided in the inner cavity (4), the ends of the two screw rods (14) both extend into the outer cavity (5) and are connected to the rotating ring (7) through a transmission mechanism, and a movable opening is provided on the arc-shaped inner wall of the nut body (1) and is communicated with the thread groove and the inner cavity (4), a positioning rod (6) is provided in the movable opening, and the positioning rod (6) is connected to the screw rod (14) through a connecting mechanism.

2. A self-piercing rivet nut according to claim 1, characterized in that: The rotating mechanism comprises a side gear ring (10) arranged on the arc-shaped outer wall of the rotating ring (7), and the driving gear (13) is meshed with the side gear ring (10).

3. The self-piercing rivet nut according to claim 2, characterized in that: The transmission mechanism comprises a transmission gear (15) arranged on the end of the screw rod (14), and the transmission gear (15) is meshed with the lower gear ring (11).

4. The self-piercing self-clinching nut according to claim 3, characterized in that: The connection mechanism comprises a connection plate (16) threadedly sleeved on the outer wall of the screw rod (14), and the end of the positioning rod (6) is mounted on the outer wall of the connection plate (16).

5. The self-piercing rivet nut according to claim 4, characterized in that: A hidden groove is provided on the outer wall of the nut body (1), a rotating block (9) is rotatably provided in the hidden groove, and the rotating block (9) is connected to the driving gear (13) via a rotating rod (8).

6. The self-piercing self-clinching nut according to claim 5, characterized in that: The number of the positioning rods (6) is two, the number of the stabilizing plates (3) is eight, and the two positioning rods (6) and the eight stabilizing plates (3) are distributed at equal intervals in the circumferential direction.

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