CN214788452U

CN214788452U - Hollow rivet

Info

Publication number: CN214788452U
Application number: CN202121601507.4U
Authority: CN
Inventors: 张会强; 马克峰; 吴建奎
Original assignee: Qingdao Leite Metal Products Co ltd
Current assignee: Qingdao Leite Metal Products Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-11-19
Anticipated expiration: 2031-07-15

Abstract

The utility model relates to the technical field of rivets, and discloses a hollow rivet, which solves the problem that the rivet is poor in firmness due to the fact that a core rod is easy to drop when the rivet is used for a long time at present, and comprises a nail body assembly and a core body assembly, wherein the core body assembly is inserted in the nail body assembly, the nail body assembly comprises a nail rod, and one end of the nail rod is connected with a nail head, the utility model discloses a rivet head is formed by matching a second external thread and a first external thread with an internal thread through rotating the core rod, so that the core rod drives the core head to gradually extrude the nail rod, and the contact end between the nail rod and the core head is gradually stressed, deformed and thickened, so as to be matched with the nail head, an object is fixed from two ends, when the object is fixed, the first external thread on the surface of the core rod is mutually engaged with the internal thread in a through hole, so as to avoid loosening of the core rod, compared with the smooth-shaped structure of the traditional fixing, the contact end utilizes the thread engagement, the object can be fixed firmly.

Description

Hollow rivet

Technical Field

The utility model belongs to the technical field of the rivet, specifically be a hollow rivet.

Background

Rivets are nail-shaped articles used to connect two parts (or members) with through holes and a cap at one end. In riveting, the riveted parts are connected by self-deformation or interference.

Traditional hollow rivet is when rivet the riveting by pulling, and the riveting department of the rivet body and the take-up of core bar is smooth form, and the rivet easily leads to the core bar and the core of tip to drop when using for a long time for the rivet body only relies on the rivet head of self and the rivet head that the atress extrusion formed to fix the object from both ends, makes the object fastness relatively poor.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a hollow rivet, the effectual present rivet of having solved uses for a long time, and the core bar easily drops, leads to the relatively poor problem of rivet fastness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hollow rivet, including nail body subassembly and core body subassembly, the inside grafting of nail body subassembly has the core body subassembly, nail body subassembly includes the nail pole, nail pole one end is connected with the pin fin, the inside through-hole that has seted up that runs through of nail pole and pin fin, the through-hole inner wall is close to pin fin one end and has seted up the internal thread, the core body subassembly includes the core bar, core bar one end mid-section is connected with the connecting rod, connecting rod one end is connected with the core, be formed with the annular groove for the connecting rod outside between core head and the core bar, the fracture has been seted up to core bar one end, first external screw thread has been seted up for the core bar outer end to fracture one side, the second external screw thread has been seted up for the core bar outer end to the fracture opposite side.

Preferably, the nail head is arranged in an arc structure.

Preferably, the core head is arranged in a circular truncated cone-shaped structure, and the diameter of the core head is larger than the inner diameter of the through hole.

Preferably, one end of the core rod, which is far away from the core head, is provided with a rounded corner.

Preferably, the nail rod and the nail head are of an integrated structure, and the core rod, the connecting rod and the core head are of an integrated structure.

Preferably, the nail body assembly and the core body assembly are made of aluminum alloy materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through rotating the core bar, make second external screw thread and first external screw thread and interior screw-thread fit, make the core bar drive the core and extrude the nail pole gradually, make nail pole and core contact jaw atress deformation thickening gradually, thereby form the rivet head, cooperate with the pin fin, it is fixed with the object from both ends, when fixed, the mutual interlock of internal thread in first external screw thread and the through-hole on core bar surface, thereby avoid the core bar pine to take off, compare in the smooth column structure of core bar contact jaw when tradition is fixed, this novel contact jaw utilizes the screw thread interlock, make the fixed fastness of object good.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the nail body assembly of the present invention;

fig. 3 is a schematic structural diagram of the core body assembly of the present invention;

fig. 4 is a schematic view of the locking structure of the present invention;

in the figure: 1. a nail body assembly; 101. a nail rod; 102. a nail head; 103. a through hole; 104. an internal thread; 2. a core assembly; 201. a core bar; 202. a connecting rod; 203. a core print; 204. an annular groove; 205. breaking off; 206. a first external thread; 207. a second external thread; 3. and (6) rounding off.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment, given by fig. 1-4, the utility model discloses a nail body subassembly 1 and core body subassembly 2, the inside grafting of nail body subassembly 1 has core body subassembly 2, nail body subassembly 1 includes nail pole 101, nail pole 101 one end is connected with pin fin 102, through-hole 103 has been seted up to inside running through of nail pole 101 and pin fin 102, the through-hole 103 inner wall is close to pin fin 102 one end and has been seted up internal thread 104, core body subassembly 2 includes core bar 201, core bar 201 one end middle part is connected with connecting rod 202, connecting rod 202 one end is connected with core 203, be formed with annular groove 204 for connecting rod 202 outside between core 203 and the core bar 201, fracture 205 has been seted up to core bar 201 one end, first external screw thread 206 has been seted up for core bar 201 outer end to fracture 205 one side, second external screw thread 207 has been seted up for core bar 201 outer end to fracture 205 opposite side.

In the second embodiment, based on the first embodiment, the nail head 102 is arranged in an arc-shaped structure.

In the third embodiment, on the basis of the first embodiment, the core print 203 is arranged in a circular truncated cone-shaped structure, and the diameter of the core print 203 is larger than the inner diameter of the through hole 103.

In the fourth embodiment, on the basis of the first embodiment, one end of the core rod 201 away from the core print 203 is provided with a rounded corner 3.

In the fifth embodiment, on the basis of the first embodiment, the nail rod 101 and the nail head 102 are of an integral structure, and the core rod 201, the connecting rod 202 and the core head 203 are of an integral structure.

In the sixth embodiment, on the basis of the first embodiment, the nail body assembly 1 and the core body assembly 2 are both made of aluminum alloy.

The working principle is as follows: when the rivet is used, objects needing to be connected correspond to each other, the device penetrates through a connecting hole in the objects needing to be connected, then the core rod 201 of the core body assembly 2 is fixed through a rivet gun, the core rod 201 is rotated, along with the rotation of the core rod 201, the second external threads 207 and the first external threads 206 are matched with the internal threads 104 in the rivet body assembly 1, the core rod 201 drives the core head 203 to gradually extrude the rivet rod 101, the contact end of the rivet rod 101 and the core head 203 is gradually stressed, deformed and thickened, so that a rivet head is formed and matched with the rivet head 102, the objects are fixed from two ends, after the rivet body assembly 1 and the core body assembly 2 are matched and fixed with the objects, the first external threads 206 on the surface of the core rod 201 are mutually meshed with the internal threads 104 in the through hole 103, and therefore the loosening of the core rod 201 is avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hollow blind rivet, includes nail body subassembly (1) and core body subassembly (2), its characterized in that: the nail body subassembly (1) inside grafting has core body subassembly (2), nail body subassembly (1) is including nail pole (101), nail pole (101) one end is connected with pin fin (102), nail pole (101) and pin fin (102) are inside to run through and have seted up through-hole (103), internal thread (104) have been seted up near pin fin (102) one end to through-hole (103) inner wall, core body subassembly (2) are including core bar (201), core bar (201) one end middle part is connected with connecting rod (202), connecting rod (202) one end is connected with core head (203), be formed with annular groove (204) for connecting rod (202) outside between core head (203) and core bar (201), fracture (205) have been seted up to core bar (201) one end, first external screw thread (206) have been seted up for core bar (201) outer end to fracture (205) one side, second external screw thread (207) have been seted up for core bar (201) outer end to fracture (205) opposite side.

2. A blind rivet according to claim 1, in which: the nail head (102) is arranged in an arc-shaped structure.

3. A blind rivet according to claim 1, in which: the core head (203) is arranged in a circular truncated cone-shaped structure, and the diameter of the core head (203) is larger than the inner diameter of the through hole (103).

4. A blind rivet according to claim 1, in which: one end of the core rod (201) far away from the core head (203) is provided with a fillet (3).

5. A blind rivet according to claim 1, in which: the nail rod (101) and the nail head (102) are of an integrated structure, and the core rod (201), the connecting rod (202) and the core head (203) are of an integrated structure.

6. A blind rivet according to claim 1, in which: the nail body assembly (1) and the core body assembly (2) are made of aluminum alloy materials.