CN215596121U

CN215596121U - Special-shaped rivet

Info

Publication number: CN215596121U
Application number: CN202122196474.6U
Authority: CN
Inventors: 陶明华
Original assignee: Jiangsu Dilong Fastener Manufacturing Co ltd
Current assignee: Jiangsu Dilong Fastener Manufacturing Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-21
Anticipated expiration: 2031-09-10

Abstract

The invention discloses a special-shaped rivet, which relates to the field of rivets and comprises a first rivet core and a second rivet core, wherein one end of the first rivet core is provided with a first expansion head, a first rivet body is sleeved on the first rivet core, one end of the second rivet core is provided with a second expansion head, a second rivet body is sleeved on the second rivet core, the second expansion head is detachably connected with the first rivet core, and the second rivet core is provided with a fracture groove. The application helps to improve the applicability of the rivet.

Description

Special-shaped rivet

Technical Field

The invention relates to the field of rivets, in particular to a special-shaped rivet.

Background

The rivet is used for connecting two parts with through holes and caps at one ends, and the riveted parts are connected by self deformation or interference in riveting.

At present, most of existing rivets fix a front-end workpiece and a blind-end workpiece together in a riveting mode, and riveted surfaces of the two parts are tightly attached to each other. The existing front-end part and the blind-end part are mutually abutted, namely, after the front-end part and the blind-end part are fixed, a larger gap is formed between the two parts, and aiming at the fixation of the parts, the existing rivet cannot be used for fixing the parts, namely, the applicability of the rivet is lower, and an improved part is provided.

Disclosure of Invention

In order to improve the suitability of the rivet, the application provides a special-shaped rivet.

The application provides a heterotypic rivet adopts following technical scheme:

the utility model provides a heterotypic rivet, includes first nail core and second nail core, the one end of first nail core is provided with first inflation head, the cover is equipped with first rivet on the first nail core, the one end of second nail core is provided with second inflation head, the cover is equipped with the second rivet on the second nail core, second inflation head can be dismantled with first nail core and be connected, be provided with the rupture tank on the second nail core.

Through adopting above-mentioned technical scheme, utilize first nail core and first rivet to pass the through-hole of blind end work piece, utilize second nail core and second rivet to pass the through-hole of front end work piece, then connect first nail core and second nail core, later utilize riveter and second nail core fixed, and stimulate the second nail core, and then make first rivet and second rivet carry out the riveting to two work pieces respectively, the second nail core fracture afterwards, two work pieces's is fixed promptly, realized the fixed to the great work piece in this kind of clearance promptly, help increasing the application scene of rivet, help improving the suitability of rivet promptly.

Preferably, one side that first refill is close to the second refill is formed with screw thread portion, the second inflation head is the opening setting, just be provided with the internal thread in the opening of second inflation head, the screw thread portion of first refill and the first threaded connection of second inflation of second refill.

Through adopting above-mentioned technical scheme, the screw thread portion and the first threaded connection of second inflation of first nail core have realized dismantling between first nail core and the second nail core and have connected, and can change the threaded connection distance between first nail core and the second nail core, adapt to the clearance size between two work pieces, further help improving the suitability of rivet.

Preferably, the first rivet body and the second rivet body are both provided with a cap peak, and a sealing gasket is arranged on the surface of any cap peak, which is tightly attached to the workpiece.

By adopting the technical scheme, the sealing gasket is utilized, and the improvement of the sealing property between the riveted rivet and the workpiece is facilitated.

Preferably, the first rivet body and the second rivet body are both provided with deformation parts, and any one of the deformation parts is provided with a deformation groove.

Through adopting above-mentioned technical scheme, utilize the deformation groove, reduce the structural strength of deformation portion, the first expansion head of being convenient for and the second expansion head make deformation portion warp.

Preferably, the end part of the first expansion head is provided with a cross groove.

Through adopting above-mentioned technical scheme, when first nail core and second nail core are connected, utilize the cross screwdriver to insert in the cross recess to rotate the second nail core, be convenient for first nail core and second nail core threaded connection.

Preferably, friction grains are arranged on one side, away from the second expansion head, of the second nail core.

Through adopting above-mentioned technical scheme, when rotating first nail core, the staff need take tight second nail core with the hand, utilizes friction line, and increase frictional force is convenient for the staff to take tight second nail core, helps first nail core and second nail core when connecting, takes place synchronous rotation. .

Preferably, a reserved notch is formed in the first nail core and is located between the first rivet body and the second expansion head.

Through adopting above-mentioned technical scheme, need detach the back again after two work pieces riveting, utilize and reserve the incision and be convenient for cut off the second nail core, even if be convenient for make two work pieces detach.

Preferably, the first nail core, the second nail core, the first rivet body and the second rivet body are all made of stainless steel.

Through adopting above-mentioned technical scheme, first nail core, second nail core, first rivet and second rivet are stainless steel, help improving the corrosion resistance of rivet.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first rivet core, the first rivet body, the second rivet core and the second rivet body are utilized to fix two workpieces with larger gaps, so that the application scenes of the rivet are increased, namely the service life of the rivet is prolonged;

2. the first nail core and the second nail core are connected through threads, so that the connection distance between the first nail core and the second nail core can be changed, the gap between two workpieces is adapted, and the service life of the rivet is prolonged;

3. the cross groove and the friction lines are used for facilitating the threaded connection and fixation between the first nail core and the second nail core.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

fig. 2 is a partial structural schematic diagram of an embodiment of the present application, which mainly shows a structure of a rupture groove.

Reference numerals: 1. a first mandrel; 11. a first expansion head; 12. a threaded portion; 2. a first rivet body; 3. a second mandrel; 31. a second expansion head; 32. a breaking groove; 4. a second rivet body; 5. a deformation section; 51. a deformation groove; 6. a brim; 61. a gasket; 7. a cross groove; 8. rubbing the lines; 9. and (5) reserving a notch.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a special-shaped rivet.

Referring to fig. 1 and 2, the special-shaped rivet comprises a first rivet core 1, a first rivet body 2, a second rivet core 3 and a second rivet body 4, wherein the first rivet body 2 is sleeved on the first rivet core 1, the second rivet body 4 is sleeved on the second rivet core 3, one end of the first rivet core 1 is integrally formed with a first expansion head 11, one end of the second rivet core 3 is integrally formed with a second expansion head 31, one end of the first nail core 1, which is far away from the first expansion head 11, is detachably connected with the second expansion head 31 of the second nail core 3, the first rivet body 2 and the second rivet body 4 have the same shape and structure, the first rivet body 2 and the second rivet body 4 are both composed of a deformation part 5 and a brim 6, the diameter of the first expansion head 11 is smaller than that of the deformation part 5 of the first rivet body 2, the diameter of the second expansion head 31 is smaller than that of the deformation part 5 of the second rivet body 4, and an annular fracture groove 32 is formed in the second rivet core 3.

In practice, the first rivet body 2 and the first rivet core 1 are firstly passed through the through hole of the blind end workpiece, the brim 6 of the first rivet body 2 is abutted against the periphery of the through hole of the blind end workpiece, then the second rivet body 4 and the second rivet core 3 are passed through the through hole of the front end workpiece, and the second rivet core 3 is connected with the first rivet core 1 until the brim 6 of the second rivet body 4 is abutted against the through hole of the front end workpiece, and then the second rivet core 3 is fixed by a riveting machine, and the second rivet core 3 is stretched, so as to drive the first rivet core 1 to move, so that the first expansion head 11 acts on the deformation part 5 of the first rivet body 2, so as to deform the deformation part 5 and abut against the blind end workpiece, and simultaneously the second expansion head 31 acts on the deformation part 5 of the second rivet body 4, so as to deform the deformation part 5 of the second rivet body 4 and abut against the front end workpiece, when the second rivet core 3 is broken, the special-shaped rivet is utilized to realize the fixation of two workpieces with larger gaps, thereby increasing the application scenes of the rivet, and being beneficial to improving the applicability of the rivet.

Referring to fig. 1 and 2, a plurality of deformation grooves 51 are formed on the peripheral side of any deformation part 5, the length directions of all the deformation grooves 51 are parallel to the length directions of the first nail core 1 and the second nail core 3, the structural strength of the deformation part 5 on the first nail core 1 and the second nail core 3 is reduced by using the deformation grooves 51, and when the first expansion head 11 and the second expansion head 31 act on the deformation part 5, the deformation part 5 is facilitated to deform rapidly; all bond sealed the pad 61 on two brim of a hat 6 and the face that the work piece pasted tightly mutually, after the rivet is with two work piece riveting, utilize sealed pad 61 can carry out preliminary sealing to the drill way of two work pieces, help preventing in the infiltration work pieces such as rainwater, and then help improving the life of work piece.

Referring to fig. 1 and 2, a threaded portion 12 is integrally formed on one side of the first mandrel 1 close to the first mandrel 1, the second expansion head 31 is provided with an opening, an internal thread in threaded fit with the threaded portion 12 is integrally formed in the opening in the second expansion head 31, and the first mandrel 1 and the second mandrel 3 are detachably connected by the threaded portion 12 on the first mandrel 1 and the internal thread at the second expansion position.

Referring to fig. 1 and 2, a cross groove 7 is formed in the end portion of a first expansion head 11, friction grains 8 are formed in one side, away from a second expansion head 31, of a second nail core 3 in an integrated mode, when the first nail core 1 and the second nail core 3 are in threaded connection, a cross screwdriver is inserted into the cross groove 7 and rotates, the second nail core 3 is held tightly, connection between the first nail core 1 and the second nail core 3 is facilitated, friction grains 8 are utilized, friction force between a worker and the second nail core 3 is increased, and the cross screwdriver is convenient to screw.

Referring to fig. 1 and 2, the first rivet core 1 is provided with a reserved notch 9, the reserved notch 9 is located between the first rivet body 2 and the second expansion head 31, the tensile strength of the first rivet core 1 at the reserved notch 9 is greater than that of the second rivet core 3 at the fracture groove 32, and when two workpieces need to be disassembled after riveting, the reserved notch 9 is utilized to facilitate cutting of the first rivet core 1 and further facilitate detaching of the two workpieces.

First nail core 1, first rivet body 2, second nail core 3 and second rivet body 4 are stainless steel, help improving the anti-corrosion shape of rivet body, help improving the holistic life of rivet promptly.

The implementation principle of a heterotypic rivet of this application embodiment does: utilize first rivet body 2 and first nail core 1 to pass the through-hole of blind end work piece, reuse second rivet body 4 and second nail core 3 and pass the through-hole of front end work piece, then pass through threaded connection with first nail core 1 and second nail core 3, then utilize riveting machine and second nail core 3 fixed and pulling second nail core 3, and then realize the fixed to two work pieces, realize the fixed between two work pieces that have great clearance promptly, the application scene of rivet has been increased, help improving the suitability of rivet body, and the accessible changes the distance of threaded connection between first nail core 1 and the second nail core 3, adapt to the clearance between two work pieces, further help improving the suitability of rivet.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A special-shaped rivet is characterized in that: including first nail core (1) and second nail core (3), the one end of first nail core (1) is provided with first inflation head (11), the cover is equipped with first rivet (2) on first nail core (1), the one end of second nail core (3) is provided with second inflation head (31), the cover is equipped with second rivet (4) on second nail core (3), second inflation head (31) can be dismantled with first nail core (1) and be connected, be provided with rupture tank (32) on second nail core (3).

2. A shaped rivet according to claim 1, characterized in that: one side that first nail core (1) is close to second nail core (3) is formed with screw thread portion (12), second inflation head (31) are the opening setting, just be provided with the internal thread in the opening of second inflation head (31), screw thread portion (12) of first nail core (1) and second inflation head (31) threaded connection of second nail core (3).

3. A shaped rivet according to claim 2, characterized in that: the first rivet body (2) and the second rivet body (4) are both provided with a cap peak (6), and a sealing gasket (61) is arranged on the surface of any cap peak (6) tightly attached to a workpiece.

4. A shaped rivet according to claim 3, characterized in that: deformation parts (5) are arranged on the first rivet body (2) and the second rivet body (4), and a deformation groove (51) is formed in any one of the deformation parts (5).

5. A shaped rivet according to claim 4, characterized in that: the end part of the first expansion head (11) is provided with a cross groove (7).

6. A shaped rivet according to claim 5, characterized in that: and friction grains (8) are arranged on one side, away from the second expansion head (31), of the second nail core (3).

7. A shaped rivet according to claim 1, characterized in that: a reserved notch (9) is formed in the first nail core (1), and the reserved notch (9) is located between the first rivet body (2) and the second expansion head (31).

8. A shaped rivet according to claim 1, characterized in that: the first rivet core (1), the second rivet core (3), the first rivet body (2) and the second rivet body (4) are all made of stainless steel.