CN216382159U - Polygonal barrel structure knocking back bolt - Google Patents
Polygonal barrel structure knocking back bolt Download PDFInfo
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- CN216382159U CN216382159U CN202122748197.5U CN202122748197U CN216382159U CN 216382159 U CN216382159 U CN 216382159U CN 202122748197 U CN202122748197 U CN 202122748197U CN 216382159 U CN216382159 U CN 216382159U
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Abstract
The utility model provides a polygonal barrel structure knocking back bolt, and belongs to the technical field of machinery. It has solved prior art and has had the poor problem of stability. This polygon tube structure strikes back of body and ties including being shaft-like body and the barrel that is the tube-shape, and above-mentioned body lower extreme has convex expansion portion, and body upper end is for having the linkage segment of external screw thread to its middle part department, and above-mentioned barrel casing leans on expansion portion department on the linkage segment and barrel lower extreme, the barrel is square tube form, and the lower extreme department of every side of barrel all has the deformation portion of a slope, still has the breach that runs through its lateral part on the barrel, and above-mentioned breach is in between the adjacent both sides face. This polygon tube structure strikes back of body and ties stability height.
Description
Technical Field
The utility model belongs to the technical field of machinery, and relates to a knocking back bolt with a polygonal cylinder structure.
Background
In recent years, due to the increasing demand of people for living quality, the comfort, beauty and safety of living environment quality are gradually improved, and therefore, stone materials are widely used for indoor and outer walls of buildings, landscaping and the like.
The existing knocking anchor bolt is used for fixing the stone, and due to the adoption of the linear structure of the traditional expansion ring, the expansion ring is stressed unevenly after expansion, and the stress concentration of the stone is easily caused to cause a dark injury, so that the safety and stability of the stone are poor.
Chinese patent publication No. CN111486164A provides an anchor bolt comprising a sleeve, a bolt passing through the sleeve, and at least one expansion element axially forward of the sleeve and axially supported on the sleeve, wherein the bolt has an expansion region for the expansion element.
It can be seen that the sleeve of the above patent has a wave form comprising axially extending peaks where the outer radius of the sleeve and the inner radius of the sleeve each have a maximum value and axially extending troughs where the outer radius of the sleeve and the inner radius of the sleeve each have a minimum value.
After the nut is connected to the bolt, the sleeve is compressed by the nut, and the expansion element is finally expanded stably. However, since it has a plurality of peaks, its intensity is rather reduced. Moreover, the arrangement of a plurality of wave crests leads to a complex structure thereof, increasing the overall anchor bolt cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provide a knocking back bolt with a polygonal barrel structure, which has high stability and a compact structure.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a polygon tube structure strikes back of body and ties, is including being shaft-like body and the barrel that is the tube-shape, and above-mentioned body lower extreme has convex expansion portion, and body upper end is for having the linkage segment of external screw thread to its middle part department, and above-mentioned barrel cover is supported by expansion portion department on the linkage segment and barrel lower extreme, its characterized in that, the barrel is square tube form, and the lower extreme department of every side of barrel all has the deformation portion of an slope, still has the breach that runs through its lateral part on the barrel, and above-mentioned breach is in between the adjacent both sides face.
After the nut at the upper end of the body applies pushing action force to the barrel, the deformation part is gradually contacted with the deformation part, the deformation part is attached to the expansion part in the moving process, and the lower end of the deformation part can be expanded outwards. The expanded deformation part can finally ensure that the inner end of the anchor bolt is stably connected in the corresponding connecting hole.
The setting of breach can also make the inside size of barrel can take place corresponding change, guarantees that the portion of warping can smoothly stabilize and take place deformation.
The square cylindrical barrel is simple and compact in structure. Simultaneously, because the lower extreme department of every side of barrel all has rather than the deformation portion of one-to-one, so not only further improvement its compact structure nature, deformation portion can also stably take place moreover.
In the knocking back bolt with the polygonal cylinder structure, a transition section with smooth transition is arranged between two adjacent side surfaces of the cylinder, and the notch is positioned at one transition section.
The connection part of the two adjacent side surfaces of the cylinder body is of a sharp structure, and the sharp structure is eliminated through the transition section, so that the two adjacent side surfaces of the cylinder body can be in smooth transition.
In the polygonal barrel-structured strike back bolt described above, the width dimension of the transition section is 1/6-1/5 of the width dimension of the barrel side.
The whole body of the barrel can be ensured to be in a square barrel shape within the size range, and meanwhile, the smooth transition can be realized at the side surface connecting part.
In the knocking back bolt with the polygonal cylinder structure, the expansion part is in a cone frustum shape.
The structure can make the deformation part gradually contact with the expansion part, and the deformation part realizes gradual outward expansion deformation.
In the above-mentioned polygonal cylinder structure strikes back of the body bolt, the deformation portion is the arc.
The arc-shaped deformation portion can properly reduce the material consumption and can stably deform.
In the polygonal cylinder structure knocking back bolt, the deformation part is provided with a through deformation hole.
The deformation part can be more smoothly deformed by the arrangement of the deformation hole.
In the polygonal cylinder structure knocking back bolt, the upper part of the deformation hole is positioned at the side part of the cylinder, and the lower part of the deformation hole is positioned at the deformation part.
This can reduce the material of the deformation portion appropriately, and the deformation portion can be deformed more smoothly when being pressed.
In the knocking back bolt with the polygonal cylinder structure, the cylinder is square.
In the polygonal cylinder structure knocking back bolt, the deformation part and the cylinder are of an integrated structure.
In the knocking back bolt with the polygonal cylinder structure, the inclination angle of the deformation part is 15-40 degrees.
Compared with the prior art, this back of body bolt is strikeed to polygon tube structure because the barrel of square tube shape receives when the extrusion, is four deformation portions of circumference equipartition can follow the expansion portion and stably warp, and the setting of four deformation portions can also guarantee that back of the body bolt tip is stable in the connecting hole expansion connection that corresponds when keeping minimum deformation portion quantity, and its stability is than higher.
Meanwhile, the barrel is in a square barrel shape, so that the integral structure is compact, and the practical value is high.
Drawings
FIG. 1 is a schematic structural view of the knocking back bolt with the polygonal cylinder structure.
FIG. 2 is a schematic perspective view of the cylinder in the polygonal cylinder knocking back bolt.
In the figure, 1, a body; 1a, an expansion part; 1b, a connecting section; 2. a barrel; 2a, a deformation part; 2a1, deformation hole; 2b, a gap; 2c, a connecting section; 2d, transition section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the polygonal cylinder-structured knocking back bolt comprises a rod-shaped body 1 and a cylindrical cylinder 2, wherein the lower end of the body 1 is provided with a convex expansion part 1a, a connecting section 1b with external threads is arranged from the upper end of the body 1 to the middle part of the body, the cylinder 2 is sleeved on the connecting section 1b, and the lower end of the cylinder 2 abuts against the expansion part 1 a.
The barrel 2 is in a square barrel shape, the lower end of each side face of the barrel 2 is provided with an inclined deformation part 2a, the barrel 2 is further provided with a notch 2b penetrating through the side part of the barrel, and the notch 2b is positioned between the two adjacent side faces.
The adjacent two side surfaces of the cylinder body 2 are provided with transition sections 2d with smooth transition, and the notch 2b is positioned at one transition section 2 d.
The width dimension of the transition section 2d is 1/6-1/5 of the width dimension of the side of the cylinder 2.
The expansion part 1a is in a truncated cone shape.
The deformation portion 1a is arc-shaped.
The deformation portion 2a has a deformation hole 2a1 therethrough.
The upper part of the deformation hole 2a1 is positioned at the side part of the cylinder 2, and the lower part of the deformation hole 2a1 is positioned at the deformation part 2 a.
The cylinder body 2 is square.
The deformation part 2a and the cylinder 2 are of an integrated structure.
The inclination angle of the deformation part 2a is 15-40 degrees.
After the nut at the upper end of the body applies pushing action force to the barrel, the deformation part is gradually contacted with the deformation part, the deformation part is attached to the expansion part in the moving process, and the lower end of the deformation part can be expanded outwards. The expanded deformation part can finally ensure that the inner end of the anchor bolt is stably connected in the corresponding connecting hole.
The setting of breach can also make the inside size of barrel can take place corresponding change, guarantees that the portion of warping can smoothly stabilize and take place deformation. Of course, the deformation holes on the deformation part in the process can also help the deformation part to stably deform under the action of external force.
The square cylindrical barrel is simple and compact in structure. Simultaneously, because the lower extreme department of every side of barrel all has rather than the deformation portion of one-to-one, so not only further improvement its compact structure nature, deformation portion can also stably take place moreover.
Because the barrel is the square tube form its simple structure is compact, moreover, four deformation portions of barrel lower extreme circumference equipartition guarantee under the condition that deformation portion set up quantity minimum, can also make the stable expansion of whole back of the body bolt tip connect in corresponding connecting hole department.
That is to say, under the prerequisite of guaranteeing connection stability, this polygonal barrel structure strikes back of the body bolt and has simplified barrel structure as far as possible.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a polygon tube structure strikes back of body and ties, is including being shaft-like body and the barrel that is the tube-shape, and above-mentioned body lower extreme has convex expansion portion, and body upper end is for having the linkage segment of external screw thread to its middle part department, and above-mentioned barrel cover is supported by expansion portion department on the linkage segment and barrel lower extreme, its characterized in that, the barrel is square tube form, and the lower extreme department of every side of barrel all has the deformation portion of an slope, still has the breach that runs through its lateral part on the barrel, and above-mentioned breach is in between the adjacent both sides face.
2. A polygonal barrel structural strike back bolt according to claim 1 wherein there are smoothly transitioning transitions between adjacent sides of the barrel, said notch being located at one of the transitions.
3. The polygonal barrel structural rapper back bolt of claim 2, wherein the width dimension of said transition section is 1/6-1/5 of the barrel side width dimension.
4. The polygonal barrel structural strike back pin of claim 3, wherein said flared portion is frustoconically shaped.
5. The polygonal barrel structural strike back pin of claim 4, wherein said deformation is arcuate.
6. The polygonal barrel structural strike back pin of claim 5, wherein said deformation has a deformation hole therethrough.
7. The polygonal barrel structural strike back bolt of claim 6, wherein said deformation hole upper portion is located at the barrel side and the deformation hole lower portion is located at the deformation portion.
8. The polygonal barrel structural strike back pin of claim 7, wherein said barrel is square.
9. The polygonal barrel structural strike back pin of claim 8, wherein the deformation is a unitary structure with the barrel.
10. The polygonal barrel structural strike back pin of claim 9, wherein the angle of inclination of said deformation is 15-40 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122748197.5U CN216382159U (en) | 2021-11-10 | 2021-11-10 | Polygonal barrel structure knocking back bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122748197.5U CN216382159U (en) | 2021-11-10 | 2021-11-10 | Polygonal barrel structure knocking back bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382159U true CN216382159U (en) | 2022-04-26 |
Family
ID=81251315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122748197.5U Active CN216382159U (en) | 2021-11-10 | 2021-11-10 | Polygonal barrel structure knocking back bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382159U (en) |
-
2021
- 2021-11-10 CN CN202122748197.5U patent/CN216382159U/en active Active
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| GR01 | Patent grant | ||
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