CN210830084U

CN210830084U - Stable type rivet bolt

Info

Publication number: CN210830084U
Application number: CN201921787631.7U
Authority: CN
Inventors: 许朝奎
Original assignee: Yingfeng Zhichengjia Precision Hardware Shenzhen Co ltd
Current assignee: Yingfeng Zhichengjia Precision Hardware Shenzhen Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-23
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to a stable type rivet bolt, which comprises a bolt structure and a rivet shell, wherein the bolt structure comprises a screw rod part, a nut part connected with one end of the screw rod part and a protruding rib protruding out of the outer surface of the screw rod; the rivet shell comprises a deformation part at one end and a clamping part at the other end, a groove matched with the protruding ribs is formed in the inner surface of the deformation part, the screw rod part sequentially penetrates through the deformation part and the clamping part, and the nut part is abutted to the deformation part. The utility model provides a bolt structure uses with the cooperation of rivet shell, embolias the bolt structure in the rivet shell, makes deformation portion and clamping part form the fixed knot who is fixed in the screw part on treating the processing section bar through pulling screw part, sets up the recess looks adaptation of protrusion rib and clamping part through the surface at screw part to realized bolt structure and rivet the stable connection between the shell, avoided appearing easily at the rivet back bolt structure problem "following changes".

Description

Stable type rivet bolt

Technical Field

The utility model belongs to the technical field of the rivet bolt, especially, relate to stable form rivet bolt.

Background

As a novel connecting fastener, the rivet-pulling fastener changes the connecting mode of mounting parts on thin plates, thick plates in a certain range and closed sectional materials. The novel fastening device can replace traditional connection modes such as welding and gluing, and can be used in the fastening field of manufacturing industries such as easy deformation, difficult tapping and closed section. At present, the rivet fastening technology is widely used for assembling electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations and the like. The connecting device is developed for solving the defects that a welding fastener for metal sheets and thin pipes is easy to melt, difficult to machine threads and the like, and has the characteristics of high connecting efficiency, convenience in use, reliability in connection and the like. In a specific operation process, the blind rivet screw has a follow-up rotation phenomenon in a machining process, and the quality of a product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stable form rivet bolt for solve the unstable technical problem of screw among the prior art.

The utility model provides a stable form rivet bolt, include:

the bolt structure comprises a screw rod part, a nut part connected with one end of the screw rod part and a protruding rib protruding out of the outer surface of the screw rod;

the rivet-pulling shell comprises a deformation part at one end and a clamping part at the other end, a groove matched with the protruding ribs is formed in the inner surface of the deformation part, the screw part sequentially penetrates through the deformation part and the clamping part, and the screw cap part is abutted against the deformation part;

the rivet pulling shell is inserted from a rivet pulling hole of the section bar to be processed so that the clamping part is propped against the outer surface of the section bar to be processed; the bolt structure is inserted into the rivet shell to enable the protruding ribs to be fixed in the grooves, and the other end of the screw rod part extends out of the outer surface of the section to be processed; the screw rod part is subjected to force extending towards the outer surface direction of the section bar to be processed, so that the deformation part is extruded and deformed and is abutted against the inner surface of the section bar to be processed and the clamping part to form a bolt fixing structure.

Preferably, the nut portion includes preceding terminal surface, rear end face and connects preceding terminal surface with the annular side wall face of rear end face, the rear end face with the screw rod portion contacts, the rear end face with the contained angle of junction between the annular side wall face is 90 degrees vertical angles.

Preferably, the front end face is connected with the annular side wall face through an arc buffering face, and the rear end face is connected with the outer surface of the screw portion through an arc buffering face.

Preferably, the protruding rib is rectangular shape subassembly, many the rectangular shape subassembly is followed the direction of height of screw rod portion sets up, the rectangular shape subassembly extends to on the rear end face to evenly distributed in the surface of screw rod portion.

Preferably, the screw portion further includes an external thread zone, the external thread zone is disposed on the other end of the screw portion extending out of the outer surface of the profile to be processed.

Preferably, the rivet shell further comprises a connecting part in contact with a rivet hole of the profile to be processed, the connecting part is arranged between the deformation part and the clamping part, the outer surface of the connecting part is a non-circular surface, and the outer surface of the connecting part is completely overlapped with the inner surface of the rivet hole.

Preferably, the thickness of the connecting part is the same as that of the profile to be processed.

Preferably, the outer surface of the connecting part is a regular pentagon or a regular hexagon.

Preferably, an outer surface of the deformation portion is inscribed in an outer surface of the connection portion.

Preferably, the groove penetrates through an inner surface of the deformation portion, an inner surface of the connection portion, and an inner surface of the clamping portion.

From the foregoing the embodiment of the utility model provides a, the utility model provides a bolt construction uses with the cooperation of rivet shell, embolias the rivet shell with bolt construction in, makes deformation portion and clamping part form the fixed knot who is fixed in the screw part on treating the processing section bar through pulling screw part, sets up the recess looks adaptation of protruding rib and clamping part through the surface at screw part to realized bolt construction and rivet the stable connection between the shell, avoided appearing easily in the bolt construction behind the rivet "follow-up commentaries on classics" problem.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the stable type rivet bolt of the present invention;

fig. 2 is an exploded schematic view of the stable type rivet bolt of the present invention;

fig. 3 is a sectional view of the stable type rivet bolt of the present invention;

fig. 4 is a schematic view of a local simulation of a riveting process of the stable type rivet bolt of the present invention;

fig. 5 is the utility model discloses stable form rivet bolt's mounting structure sketch map.

Description of the main elements:

1. a bolt structure; 11. a screw section; 12. a nut portion; 13. projecting ribs; 2. pulling and riveting the shell; 21. a deformation section; 22. a connecting portion; 23. a clamping portion; 24. a groove; 3. a section to be processed; 31. pulling and riveting the hole; 121. a front end face; 122. a rear end face; 123. an annular sidewall surface.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention discloses a stable type rivet bolt, including:

the bolt structure 1, the bolt structure 1 includes the screw portion 11, the nut portion 12 that couples to one end of the screw portion 11 and the protruding rib 13 protruding from external surface of the screw;

the rivet-pulling shell 2 comprises a deformation part 21 at one end and a clamping part 23 at the other end, a groove 24 matched with the protruding rib 13 is formed in the inner surface of the deformation part 21, the screw rod part 11 sequentially penetrates through the deformation part 21 and the clamping part 23, and the screw cap part 12 is abutted against the deformation part 21;

the rivet shell 2 is inserted from a rivet hole 31 of the section bar 3 to be processed so that the clamping part 23 is propped against the outer surface of the section bar 3 to be processed; the bolt structure 1 is inserted into the rivet shell 2 to fix the protruding ribs 13 in the grooves 24, and the other end of the screw rod part 11 extends out of the outer surface of the section bar 3 to be processed; the screw portion 11 receives a force extending towards the outer surface of the profile 3 to be processed, so that the deformation portion 21 is extruded and deformed and is abutted against the inner surface of the profile 3 to be processed to form a bolt fixing structure with the clamping portion 23.

Compared with the prior art, the utility model provides a bolt structure 1 uses with the cooperation of rivet shell 2, embolia rivet shell 2 with bolt structure 1, make deformation portion 21 and clamping part 23 form through pulling screw part 11 and be fixed in the fixed knot who treats on the processing section bar 3 with screw part 11 and construct, through the surface at screw part 11 setting protrusion rib 13 and the recess 24 looks adaptation of clamping part 23, thereby realized bolt structure 1 and rivet the stable connection between the shell 2, avoid appearing "follow-up commentaries on classics" problem easily in bolt structure 1 after rivet.

Under the condition that the hollow space of the existing hollow pipeline section bar is less than 10mm, a common rivet bolt cannot be arranged in the hollow pipeline section bar, so that an external auxiliary support is generally required to be used for installation in the installation process. And the rivet bolt of the utility model can solve the problems, and is applicable to the pipeline-shaped section bar with small hollow space, as shown in figure 5. The whole external diameter of bolt structure 1 and the external diameter of deformation portion all are less than the rivet hole internal diameter of pipeline section bar, thereby can establish the cover as holistic rivet bolt stretch into the rivet hole from the surface of pipeline section bar, make bolt structure 1 outwards stretch out from the internal surface of pipeline section bar, rivet deformation portion 21 shaping in the internal surface of pipeline section bar, deformation portion 21 parcel nut portion 12 in the internal surface, in other words, the internal surface bulge portion of pipeline section bar only has nut thickness to add the deformation portion 21 partial thickness that extrudes the deformation, in the actual operation process, nut portion 12 before the rivet, and the gross thickness of deformation portion 21 only has the length about 6mm, can save the area occupied of rivet bolt in the pipeline as far as possible, realize the rivet bolt installation of narrow-spaced pipeline section bar.

It should be noted that the utility model discloses a pipeline section bar is not limited to the pipeline section bar only, as long as the structure that needs the installation rivet bolt, and its installation space is less than 10 mm's section bar integrated configuration, all can use the utility model discloses a rivet bolt installs.

Referring to fig. 4, fig. 4 is a diagram illustrating a stress direction of the deformation portion 21 during the rivet pulling process captured by the DEFORM process simulation system during the simulation analysis process, in the present embodiment, the nut portion 12 includes a front end surface 121, a rear end surface 122, and an annular sidewall surface 123 connecting the front end surface 121 and the rear end surface 122, the rear end surface 122 contacts the screw portion 11, and an included angle at a connection between the rear end surface 122 and the annular sidewall surface 123 is a 90-degree vertical angle. Through setting up to vertical angle between rear end face 122 and the annular side wall face 123 to rivet the in-process, the rear end face 122 of nut extrudes the material of connecting portion 22, the material that contacts with rear end face 122 receives the extrusion back downwards because the support of aluminium alloy, continue the outdiffusion and form a trend of flowing, thereby make the power that the surface material of connecting portion 22 can receive be the trend of inside flow, connecting portion 22 can wrap up nut portion 12 by the material that extrudes away promptly, thereby further prevent that the bolt from droing.

In this embodiment, the front end surface 121 and the annular side wall surface 123 are connected by an arc-shaped buffer surface, and the rear end surface 122 and the outer surface of the screw portion 11 are connected by an arc-shaped buffer surface. The front end face 121 and the annular side wall face 123 are connected through the arc buffering face, so that the material extruded by the connecting portion 22 is filled in the front end face 121 of the screw portion 11, the rear end face 122 is connected with the outer surface of the screw portion 11 through the arc buffering face, the connecting portion 22 can be guided to bend and bear force in advance, and the material extruded from the inner surface of the connecting portion 22 is facilitated.

In this embodiment, the protruding ribs 13 are strip-shaped members, and the strip-shaped members are disposed along the height direction of the screw portion 11, extend to the rear end surface 122, and are uniformly distributed on the outer surface of the screw portion 11. The strip-shaped component is arranged along the height direction of the screw rod part 11, so that the bolt structure 1 can be conveniently sleeved into the rivet pulling shell 2, the stress of the protruding ribs 13 can be more uniform due to the uniform distribution of the strip-shaped component and the outer surface of the screw rod part 11, and the stability of the screw rod part 11 in the rivet pulling process can be improved.

In this embodiment, the screw portion 11 further includes an external thread zone, which is disposed at the other end of the screw portion 11 extending out of the outer surface of the profile 3 to be processed. The external thread area is arranged to realize the function of extending a connectable screw on the section bar 3 to be processed, and is favorable for fixing the section bar 3 to be processed and other section bars.

In this embodiment, the rivet shell 2 further includes a connecting portion 22 contacting with the rivet hole 31 of the profile 3 to be processed, the connecting portion 22 is disposed between the deformation portion 21 and the clamping portion 23, an outer surface of the connecting portion 22 is a non-circular surface, and an outer surface of the connecting portion 22 completely coincides with an inner surface of the rivet hole 31. The outer surface of the connecting portion 22 completely coincides with the rivet hole 31, and the contact surface of the connecting portion 22 and the rivet hole is noncircular, so that the connecting portion 22 is not prone to rotating or moving after being fixed, and the stability of the screw rod is enhanced.

In the present embodiment, the thickness of the connecting portion 22 is the same as the thickness of the profile 3 to be processed. The thickness of the connecting part 22 is the same as that of the section bar 3 to be processed, so that on one hand, materials can be saved as much as possible, and on the other hand, the thickness of the inner surface of the section bar 3 to be processed can be reduced as much as possible, so that the whole occupied area of the rivet bolt is reduced.

In the present embodiment, the outer surface of the connecting portion 22 is a regular pentagon or a regular hexagon. The utility model provides a connecting portion 22 surface shape is preferred regular pentagon or regular hexagon, and easily shaping also makes things convenient for other instruments to carry out further processing to it, of course, the utility model discloses also can directly use the ring-shaped connection face, set up on the ring-shaped connection face spacing arch can.

In the present embodiment, the outer surface of the deformation portion 21 is inscribed in the outer surface of the connection portion 22. This arrangement can ensure the stability of the deformation portion 21 and the connection portion 22, and also reduce the application of consumables as much as possible.

In the present embodiment, the groove 24 penetrates the inner surface of the deformation portion 21, the inner surface of the connection portion 22, and the inner surface of the clamping portion 23. The groove 24 penetrates through the inner surface of the rivet shell 2, so that the protruding ribs and the groove 24 are fixedly connected before rivet pulling, in the rivet pulling process and after rivet pulling, and the stability of the screw rod part 11 is ensured.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

Above is the description to the technical scheme that the utility model provides, to technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and range of application, to sum up, this description content should not be understood as the restriction of the utility model.

Claims

1. A stable form blind rivet bolt, characterized by, includes:

the rivet shell comprises a deformation part at one end and a clamping part at the other end, a groove matched with the protruding ribs is formed in the inner surface of the deformation part, the screw part sequentially penetrates through the deformation part and the clamping part, and the screw cap part is abutted to the deformation part.

2. The stabilized blind rivet bolt of claim 1, wherein said nut portion includes a front end face, a rear end face, and an annular sidewall face connecting said front end face and said rear end face, said rear end face contacting said shank portion, and a junction between said rear end face and said annular sidewall face having an included angle of 90 degrees.

3. The stabilized blind rivet bolt of claim 2, wherein said front end face is connected to said annular side wall surface by an arcuate relief surface, and said rear end face is connected to the outer surface of said shank portion by an arcuate relief surface.

4. The stable blind rivet bolt of claim 2, wherein said protruding ribs are elongated members, and a plurality of said elongated members are disposed along the height direction of said shank portion, and said elongated members extend to said rear end surface and are uniformly distributed on the outer surface of said shank portion.

5. The stabilized blind rivet bolt of claim 1, wherein said shank portion further includes an externally threaded region disposed at the other end of said shank portion extending beyond the outer surface of the profile to be machined.

6. The stabilized blind rivet bolt of claim 1, wherein the blind rivet shell further includes a connecting portion contacting with the blind rivet hole of the profile to be processed, the connecting portion is disposed between the deformation portion and the clamping portion, an outer surface of the connecting portion is a non-circular surface, and the outer surface of the connecting portion completely coincides with an inner surface of the blind rivet hole.

7. The stabilized blind rivet bolt of claim 6, wherein the thickness of said connecting portion is the same as the thickness of said profile to be machined.

8. The stabilized blind rivet according to claim 6, wherein the outer surface of the connecting portion is a regular pentagon or a regular hexagon.

9. The stabilized blind rivet according to claim 6, wherein the outer surface of the deformation is inscribed on the outer surface of the connecting portion.

10. The stabilized blind rivet according to claim 6, wherein said recess extends through an inner surface of said deformation portion, an inner surface of said connecting portion, and an inner surface of said clamping portion.