CN214304750U - Self-contained blind rivet with assembly hole - Google Patents

Abstract

The utility model discloses a from self-contained assembly hole's self-plugging rivet mainly relates to the rivet field. The riveting device comprises a riveting rod and a riveting body which are matched with each other, wherein the riveting body comprises a first threaded sleeve, a riveting pipe, a second threaded sleeve and a locking ring which are integrally formed, the first threaded sleeve and the second threaded sleeve are coaxial, corresponding internal threads are arranged on the inner wall of the first threaded sleeve and the second threaded sleeve, one end, inserted into the riveting body, of the riveting rod is arranged at a threaded head of the first threaded sleeve in a threaded matching mode, and the outer diameter of the riveting rod is smaller than the diameter of the threaded head. The beneficial effects of the utility model reside in that: it can provide larger bearing surface and has assembling holes on the assembling surface for further fitting the screw.

Description

Self-contained blind rivet with assembly hole

Technical Field

The utility model relates to a rivet field specifically is a self-contained blind rivet of pilot hole.

Background

The self-plugging rivet is a rivet for single-side riveting, but a special hand riveter tool is needed, and the rivet core is pulled by the special riveter to expand the rivet body and achieve the riveting effect. The product is widely used for products such as buildings, automobiles, ships, airplanes, machines, electric appliances, furniture and the like.

The requirements for blind rivets vary greatly depending on the products to which they are applied. In many applications, it is generally desirable to first fix a multi-layer panel to a product housing, panel, etc. with rivets and then mount various other components to the panel or housing. This requires the addition of a number of tapped assembly holes in the product to accommodate the attachment of screw screws to other components. Therefore, not only are a plurality of destructive assembly traces caused to the whole structure of the product, but also the firmness and the assembly reliability of the product are adversely affected, and especially for some materials with low strength or soft material, such as plastic fittings, interior trim parts, instrument panels and the like, the existing rivet fixing is easy to damage, the weakness of the structure is increased due to too many assembly holes, and meanwhile, the product assembly is complex, and the surface traces are messy and unattractive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from self-contained assembly hole's self-plugging rivet, it can provide bigger loading end to have the assembly hole that can continue to cooperate the screw installation on the surface of assembly.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

the self-contained blind rivet comprises a rivet rod and a rivet body which are matched, wherein the rivet body comprises a first threaded sleeve, a rivet pipe, a second threaded sleeve and a lock ring which are integrally formed, corresponding internal threads are arranged on the inner wall of the first threaded sleeve and the second threaded sleeve which are coaxial, one end of the rivet rod inserted into the rivet body is arranged at a screw head of the first threaded sleeve in a threaded matching mode, and the outer diameter of the rivet rod is smaller than the diameter of the screw head.

The riveting pipe comprises 2-6 expansion rods in annular array, one end of each expansion rod is fixedly connected to the end face of the first threaded sleeve, and the other end of each expansion rod is fixedly connected to the end face of the second threaded sleeve.

And an annular boss protruding outwards is arranged at one end of the first threaded sleeve adjacent to the riveting pipe.

The circumferential surface of the riveting rod is symmetrically provided with plane grooves.

Contrast prior art, the beneficial effects of the utility model reside in that:

after the rivet body is assembled, the surfaces of two sides of the assembled position are provided with assembling holes with internal threads, so that two assembling positions with standard screws can be provided, assembling marks on the surfaces of components can be reduced, and assembling functions can be effectively integrated and increased by using necessary assembling points. The structural stability of the assembled component is improved. Meanwhile, the reinforced bearing effect of the rivet body is matched with subsequent screw assembly, so that the firmness and durability of final product assembly are improved.

Drawings

Fig. 1 is an overall schematic diagram of the present invention.

Fig. 2 is an overall schematic diagram of the present invention.

Fig. 3 is a schematic view of the rivet stem of the present invention.

Fig. 4 is a schematic view of the usage of the present invention.

Reference numerals shown in the drawings:

1. riveting a rod; 2. a first threaded sleeve; 3. riveting a pipe; 4. a second thread insert; 5. a locking ring; 6. expanding the rod; 7. a screw head; 8. a planar slot; 9. and (4) a boss.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.

Example 1: self-contained blind rivet with assembly hole

Comprises a rivet rod 1 and a rivet body which are matched.

The rivet body is provided with a first threaded sleeve 2, a rivet pipe 3, a second threaded sleeve 4 and a lock ring 5 from one end to the other end; the above components are integrally formed aluminum pieces, and the inner walls of the first thread insert 2 and the second thread insert 4 are provided with internal threads of the same type for being matched with standard screws. The rivet tube drawing device is characterized in that an annular boss 9 which expands outwards is arranged on one side end face of the first thread sleeve 2, and the annular boss 9 is coaxial with the first thread sleeve 2, so that the rivet tube 3 can be compressed inwards in the drawing process, and the rivet tube 3 can be smoothly expanded. 2-6 expansion rods 6 are arranged on the end face, away from the first threaded sleeve 2, of the annular boss 9 in an annular array mode, and the section of each expansion rod 6 is in an arc shape coaxial with the annular boss 9, so that the expansion rods are convenient to bend outwards and arch. The expansion rod 6 surrounds the annular boss 9 to form a tubular structure of the riveting pipe 3 and is used for being inserted into the pre-tapped assembling hole. One end of the expansion rod 6, far away from the boss 9, is fixedly connected with one side end face of the second threaded sleeve 4, and the second threaded sleeve 4 and the first threaded sleeve 2 are coaxially arranged, so that after installation, screw holes capable of being assembled with standard screws are naturally reserved on the end faces of the two sides of the plate body or the shell, and the screw holes do not need to be additionally tapped.

And a lock ring 5 is arranged on the outer wall of the second threaded sleeve 4, and the lock ring 5 is used for limiting and fixing one side of the plate body and realizes riveting together with the expanded riveting pipe 3. The locking ring 5 is sheet-shaped, and can better provide a larger bearing surface on the outer side.

The riveting rod 1 can be inserted into a rivet body, one end of the riveting rod 1 adjacent to the first threaded sleeve 2 is provided with a threaded head 7, the threaded head 7 is provided with external threads and can be in threaded fit with the first threaded sleeve 2, and the outer diameter of the riveting rod 1 is smaller than the diameter of the threaded head 7, so that the riveting rod can freely penetrate through the first threaded sleeve 2 or the second threaded sleeve 4 and is convenient to pull out.

The above structure is further explained in connection with specific applications as follows:

in the initial state, the screw head 7 is assembled in the first screw sleeve 2, and is the normal state of the product;

when the riveting die is required to be applied, the riveting body is inserted into the pre-tapped assembling hole, the lock ring 5 of the riveting body is tightly attached to the end face of one side of the plate, and the first screw sleeve 2 and most of the riveting pipe 3 penetrate through the plate and are exposed outside the end face of the other side of the plate;

inserting and fixing a riveting rod 1 into a head of a riveter;

under the thread engagement relation of the rivet rod 1, the screw head 7 and the first screw sleeve 2, the first screw sleeve 2 can be driven to be close to one end of the lock ring 5 through the screw head 7, the expansion rod 6 of the rivet pipe 3 is pressed to be arched outwards to form a star-shaped expansion body, the tail deformation has a larger bearing surface, and the tail deformation and the sheet limiting of the lock ring 5 jointly form fixation on two sides of an installed plate, so that the load of a riveting surface is effectively dispersed, and the rivet rod is suitable for materials with low strength and soft materials;

after the tail part is expanded to the proper position, the rivet rod 1 is rotated to separate the screw head 7 from the first screw sleeve 2 (the second screw sleeve 4), so that the rivet rod 1 is drawn out, and only the rivet body is remained on the assembled plate.

Through the riveting assembly, the following advantages are achieved:

firstly, the special tail part is deformed, and a disc-shaped structure of a lock ring 5 is matched, so that larger bearing surfaces are provided at two ends of a riveted rivet body, riveting load is dispersed, the compression strength of an assembled part is reduced, and the reliability of riveting is ensured;

and moreover, after the rivet body is assembled, the surfaces of two sides of the assembled position are provided with assembling holes with internal threads, so that two assembling positions with standard screws can be provided, assembling marks on the surfaces of components can be reduced, and the assembling function can be effectively integrated and increased by using necessary assembling points.

Simultaneously, the peculiar big loading end of this rivet body also improves the fastness for the assembly of first swivel nut 2 and second swivel nut 4, if directly attack the screw of screw on the plate, probably because the material problem of plate is fixed insecure, and this rivet body is from taking the swivel nut, and combines the fixed effect of catch 5 and the inflation of afterbody star type, can disperse the bearing pressure after the later stage screw assembly is fixed to improve the fastness and the durability of assembly.

Furthermore, the riveting rod 1 is completely taken out after being transferred and matched, and no breakpoint is set, so that the riveting rod is not reserved in the riveting body, the weight of the assembly component can be effectively reduced, and the requirement of the assembly component is met.

Example 2: self-contained blind rivet with assembly hole

On the basis of embodiment 1, the structure of a riveting rod 1 is further improved as follows:

after the riveting rod 1 is inserted into the riveting body, under the condition that the riveting body is not deformed, the riveting rod 1 penetrates through the part of the side wall outside the riveting body to be provided with the plane groove 8, and the plane groove 8 is arranged in a bilateral symmetry manner, so that the side wall of the riveting rod 1 forms a non-circumferential flat structure, the riveting rod can be conveniently matched with the gun head fixing part of the riveting gun more reliably, and meanwhile, the riveting rod is favorable for realizing reinforcement limit during circumferential rotation. The concave platforms at the two ends of the plane groove 8 are convenient to clamp the gun head, and the clamping effect is improved.

Claims (4)

1. The self-contained blind rivet is characterized by comprising a rivet rod and a rivet body which are matched, wherein the rivet body comprises a first threaded sleeve, a rivet pipe, a second threaded sleeve and a lock ring which are integrally formed, the first threaded sleeve and the second threaded sleeve are coaxial, corresponding internal threads are arranged on the inner wall of the first threaded sleeve and the second threaded sleeve, one end, inserted into the rivet body, of the rivet rod is arranged at a screw head in threaded fit with the first threaded sleeve, and the outer diameter of the rivet rod is smaller than the diameter of the screw head.

2. The self-contained blind rivet with the assembly hole as claimed in claim 1, characterized in that the rivet tube comprises 2-6 expansion rods in annular array, one end of each expansion rod is fixedly connected to the end face of the first screw sleeve, and the other end of each expansion rod is fixedly connected to the end face of the second screw sleeve.

3. The self-contained blind rivet with the assembly hole as claimed in claim 1, characterized in that an annular boss protruding outwards is arranged at one end of the first barrel adjacent to the rivet pipe.

4. The self-assembly hole blind rivet according to claim 1, characterized in that the rivet stem is symmetrically provided with plane grooves on the circumferential surface.

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