CN211550223U - Self-fixing bolt type fastener - Google Patents
Self-fixing bolt type fastener Download PDFInfo
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- CN211550223U CN211550223U CN202020048192.4U CN202020048192U CN211550223U CN 211550223 U CN211550223 U CN 211550223U CN 202020048192 U CN202020048192 U CN 202020048192U CN 211550223 U CN211550223 U CN 211550223U
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Abstract
The utility model discloses a from solid fixed bolt round pin type fastener, include from solid bolt, from solid nut, fixed inserted key, from solid bolt and from solid nut spiro union time, screw thread A and screw thread B interlock form two semilunar pores from solid bolt and from between the solid nut, and two semilunar posts and these two pores of fixed inserted key match and peg graft. The utility model discloses a bolt after the cutting, the shutoff of the fixed inserted key of nut cooperation, form the fastener from the fastening, because the blockking of fixed inserted key, the nut can not appear becoming flexible, keep the original fastening position of nut, the elasticity of spring makes the permanent grafting of fixed inserted key simultaneously, it is permanent, from the solidity, can adopt ordinary steel, stainless steel, metal material preparation such as aluminum alloy, be fit for between various metal material component, the connection of low strength material such as aluminum alloy, high durability and reliability, the field installation is convenient, the work efficiency is high, do not need professional equipment, material and professional operating personnel, the installation effectiveness is greatly improved.
Description
Technical Field
The utility model belongs to the installation fastener field, specifically speaking relates to a from fixed bolt type fastener.
Background
At present, in building structure engineering, the connection between metal components is as follows: three main forms of welding, riveting and bolting. The welding is suitable for the situation that the connecting surface is large and the connection has high requirements, the connection is reliable, but the welding is not suitable for the connection of materials sensitive to temperature, such as aluminum alloy, and the like, and the welding cannot be disassembled after the connection. Welding requires special equipment and materials, and has certain technical requirements on operators. Rivet connection is the earliest technology used for connecting metal components, and has the characteristics of wide application range and reliable connection, and the defects of low work efficiency, high noise, high vibration and undetachable connection. Is basically eliminated except for being used in a few special occasions. The bolt connection is the most widely used metal connection method at present, and has two forms of a common bolt and a high-strength bolt. In the building engineering, the high-strength bolt is generally used for permanent connection between metal components, the high-strength bolt is made of high-strength steel, when the high-strength bolt is used, pretension force is applied to the bolt, the connecting piece is extruded to enable the contact surface of the connecting piece to generate friction force, and connection shearing force is transmitted according to the friction force, and the high-strength bolt is characterized in that: the requirement for producing bolt steel is high; the pre-tensioning force is generated by screwing the screw cap, so that the special construction technical requirements are met; the stress is reliable, but the stress is only used once and can not be used repeatedly. In contrast, the ordinary bolt is made of ordinary steel, the construction precision requirement is not high, and the bolt can be repeatedly disassembled and assembled, and the disadvantage is that the connection reliability is not high because the accuracy requirement of the ordinary bolt on the manufacture and installation is not very strict, and the screwed nut can gradually loosen to cause connection failure in a vibration environment, and in order to solve the problem, the following two methods are generally adopted in the engineering: firstly, adopt two nuts, through the following nut of two nut fastenings, improve the reliability of connecting. And secondly, after the nut is screwed tightly, the bolt and the nut are welded together to prevent the nut from loosening. Both methods have the disadvantages of material waste, labor and time.
In addition, for the member connection of the aluminum alloy materials commonly used in the building structure engineering, the aluminum alloy materials are sensitive to temperature and have reduced strength in a high-temperature environment, so that the aluminum alloy materials are not suitable for welding. If the aluminum alloy member is connected by the steel bolt, electrochemical reaction can occur in the two materials, the aluminum alloy is corroded, and only the aluminum alloy member can be connected by the aluminum alloy bolt or the stainless steel bolt. The conventional aluminum alloy bolt is adopted for connection, the bolt required to be controlled is reasonable in length, so that materials are saved, in addition, the aluminum alloy material is low in strength, the bolt connection cannot apply large pretensioning force, and meanwhile, the nut cannot be loosened after the bolt is installed, and if the common bolt is adopted for connection, the requirement is difficult to meet.
In view of this, the present invention is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming prior art's not enough, provides a from solid bolt type fastener, has permanence, from the solidity, can adopt metal material preparation such as ordinary steel, stainless steel, aluminum alloy, is fit for the connection between the various metal material component, and simple to use is reliable, and on-the-spot installation is convenient, the work efficiency is high.
In order to solve the technical problem, the utility model adopts the following basic concept:
a self-setting, bolt-pin type fastener comprising:
the self-fixing bolt is in a cuboid shape at one end connected in a threaded manner, and only the outer peripheral wall of the self-fixing bolt is provided with a screw thread A;
the self-fixing nut is provided with a concave cavity and an adjusting hole, the concave cavity is divided into a first section cavity and a second section cavity, the inner wall of the first section cavity consists of a screw thread B and a smooth section for cutting the screw thread, the second section cavity is positioned at the bottom of the concave cavity, a spring is arranged in the second section cavity, and the adjusting hole is positioned at the bottom surface of the concave cavity and communicates the concave cavity with the outside;
the fixed inserting key is Jiong-shaped and consists of two half-moon columns and a top cover, the two half-moon columns are connected with the top cover and are symmetrically distributed, the arc-shaped peripheral wall at the end part of the top cover of the fixed inserting key is provided with a plurality of circles of threads, and the center of the outer surface of the top cover is provided with an inner angle adjusting hole matched with the adjusting hole; the end of the top cover extends into the concave cavity and can be in threaded connection with the screw thread B and compress the spring;
when the self-fixing bolt is in threaded connection with the self-fixing nut, the screw thread A is meshed with the screw thread B, two half-moon-shaped holes are formed between the self-fixing bolt and the self-fixing nut, and two half-moon columns of the fixed inserting key are in matched insertion connection with the two holes.
Furthermore, the self-fixing bolt comprises a rod body and a cap head, wherein the rod body consists of a connecting rod and a bolt connection section, the cap head is connected with the bolt connection section through the connecting rod, and the bolt connection section is rectangular.
Further, the screw thread A is composed of two arc lengths A which are symmetrically distributed, the length of the arc length A is 1/4 of the screw connection circumference, the screw thread B is composed of two arc lengths B which are symmetrically distributed, and the length of the arc length B is 1/4 of the screw connection circumference.
Further, still include the rubber buffer that is used for the shutoff to adjust the hole.
Furthermore, the inner angle adjusting holes are hexagonal, and the diameter of the circumscribed circle of the inner angle adjusting holes is not larger than that of the adjusting holes.
Further, the fixed inserting key is a rubber fixed inserting key.
After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.
The utility model discloses a bolt after the cutting, the shutoff of the fixed inserted key of nut cooperation, form the fastener from the fastening, because the blockking of fixed inserted key, the nut can not appear becoming flexible, keep the original fastening position of nut, the elasticity of spring makes the permanent grafting of fixed inserted key simultaneously, it is permanent, from the solidity, can adopt ordinary steel, stainless steel, metal material preparation such as aluminum alloy, be fit for between various metal material component, the connection of low strength material such as aluminum alloy, high durability and reliability, the field installation is convenient, the work efficiency is high, do not need professional equipment, material and professional operating personnel, the installation effectiveness is greatly improved.
The utility model discloses the bolt can realize quick, convenient, high-efficient installation, and safe and reliable has permanence, from the solidity and from waterproof sealing's nature, has extensive suitability and very strong practicality.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of the components of an embodiment of the present invention;
fig. 2 is a schematic view of a self-fastening bolt according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a self-fastening nut according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a state where the fixing key of the present invention is installed in the self-fixing nut;
fig. 5 is a schematic structural view of a fixed key according to an embodiment of the present invention;
in the figure: 1. self-fixing bolts; 2. self-fixing the nut; 3. fixing the inserting key; 4. a rubber plug; 11. a cap head; 121. a connecting rod; 122. A screw joint section; 21. a smooth section; 22. a screw thread B; 23. an adjustment hole; 24. a spring; 31. a semi-lunar column; 32. a top cover; 33. An inner angle adjusting hole; 3-1, a first section cavity; 3-2 and a second section cavity.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
Example one
As shown in fig. 1 to 5, the self-fixing bolt-pin type fastener described in this embodiment includes a self-fixing bolt 1, a self-fixing nut 2, a fixing socket 3, and a rubber plug 4, wherein the self-fixing bolt 1 includes a rod body and a cap 11, the rod body is composed of a connecting rod 121 and a screwing section 122, the connecting rod 121 connects the cap 11 with the screwing section 122, the screwing section 122 is rectangular, as shown in fig. 2, the screwing section 122 and the connecting rod 121 are step-shaped, the self-fixing bolt 1 herein is formed by trimming on the basis of a common bolt, the trimming ranges are on the left and right sides of the cross section of the bolt, and the outer portions within 45 ° ranges up and down along the central axis, that is, the central angle of the arc section is 90 °, the two arc sections are symmetrically arranged, the arc length a of the two arc sections is 1/4 of the circumference of the screwing, and for convenience of expression, the screw thread on the arc sections is.
The self-fixing nut 2 is provided with a concave cavity and an adjusting hole 23, the concave cavity is divided into a first section cavity 3-1 and a second section cavity 3-2, the inner wall of the first section cavity 3-1 is composed of a screw thread B22 and a smooth section 21 for cutting the screw thread, similarly, for convenience of expression, the screw thread on the nut is defined as the screw thread B22, as shown in figure 3, the screw thread B22 is composed of two arc lengths B which are symmetrically distributed, and the smooth section 21 is composed of two sections. The self-fixing nut 2 can be formed by cutting on the basis of a common nut, the cutting range of the self-fixing nut is respectively 45 degrees of thread parts along the left and right sides of the central axis, namely the central angle of the arc length B is 90 degrees, the two arc lengths B are separated from the two smooth sections 21 at intervals, and the length of the arc length B is 1/4 of the thread connection circumference. Therefore, the thread connection end of the self-fixing bolt 1 is a circle surrounded by the thread A, the gap section, the thread A and the gap section, the inner ring of the self-fixing nut 2 is a circle surrounded by the thread B22, the smooth section 21, the thread B22 and the smooth section 21, and the central angles of the thread A and the thread B22 are both 90 degrees. When the self-fixing bolt is used, the self-fixing nut 2 can be sleeved on the self-fixing bolt 1, the screw thread A corresponds to the smooth section 21, the gap section corresponds to the screw thread B22, when the self-fixing nut 2 falls to the bottom, the self-fixing nut 2 is rotated, the screw thread B22 is meshed with the screw thread A and the central angle is kept to be overlapped, at the moment, the gap section is overlapped with the smooth section 21, and two half-moon-shaped gaps or two half-cylinder-shaped gaps are formed. The second section cavity 3-2 is located at the bottom of the concave cavity, a spring 24 is arranged in the second section cavity 3-2, the adjusting hole 23 is located on the bottom surface of the concave cavity and communicates the concave cavity with the outside, as shown in fig. 3-4, the second section cavity 3-2 provides a space for the spring 24, the diameter of the spring 24 is slightly smaller than that of the second section cavity 3-2, and the spring 24 can be conveniently placed in the space.
The fixed inserting key 3 is Jiong-shaped and comprises two half-moon columns 31 and a top cover 32, the two half-moon columns 31 are connected with the top cover 32 and are symmetrically distributed, as shown in the attached drawings 3 and 5, the fixed inserting key 3 is processed by common rubber, two half cylinders and the distance of the two half cylinders at the bottom of the fixed inserting key 3 correspond to the cut part of the self-fixing bolt 1 and have the same size, and the plane size of the lower parts of the half cylinders is slightly smaller than that of the top (the fixed inserting key is convenient to insert and mount). The arc periphery wall of fixed inserted key 3 top cap tip is equipped with a plurality of circles of screw threads, and this screw thread is in order to be connected with the screw thread B spiro union of first section chamber 3-1, and the surface center of top cap is equipped with the interior angle regulation hole 33 that matches with regulation hole 23, as shown in figure 5, when fixed plug-in components spiro union is in the cavity, the top cap end stretches into in the cavity, and the top cap compresses spring 24 in second section chamber 3-2 this moment, and interior angle regulation hole 33 just in time counterpoints with regulation hole 23, passes regulation hole 23 and can see interior angle regulation hole 33. Preferably, the inner angle adjusting hole 33 has a hexagonal shape and the diameter of its circumscribed circle is not greater than the diameter of the adjusting hole 23.
When the self-fixing bolt 1 is in threaded connection with the self-fixing nut 2, the screw thread A is meshed with the screw thread B22 to form two half-moon-shaped gaps, an inner angle screwdriver penetrates through the adjusting hole 23 to rotate the inner angle adjusting hole 33, the fixed inserting key 3 rotates, the cutting shape of the fixed inserting key 3 is consistent with the smooth section of the first section cavity 3-1, when the two parts are overlapped, the elastic force of the spring 24 can push the fixed inserting key 3 towards the direction of the self-fixing screw rod, the two half-moon columns 31 of the fixed inserting key 3 are in matched insertion connection with the two half-moon-shaped gaps, and the fixed inserting key 3 completely fills the gaps. At this time, if the self-fixing nut 2 is to be rotated, the smooth section 21 of the self-fixing nut 2 is longer than the diameter of the screw thread B22, so that the fixed inserting key 3 can resist the rotation of the screw thread after being filled, thereby avoiding the rotation of the nut and the occurrence of loosening and the like. Meanwhile, the fixed inserting key 3 keeps thrust by the elastic force of the spring 24, so that the fixed inserting key 3 always keeps an inserting state, and under the condition that the spring 24 does not fail, the screwing state of the fastener is permanent and cannot be detached. After the installation, can be with adjusting hole 23 with rubber buffer 4 shutoff, make it have waterproof nature, avoid water to get into the corruption part in the cavity.
In addition, except for the components made of the materials, other components can be made of iron, steel and other metals, the materials can be common materials of fasteners, the processing is convenient, the cost is reduced, the self-fixing nut is assembled in a factory (namely, the fixed inserting key 3 is screwed in the self-fixing nut 2, as shown in figure 4, when the self-fixing nut is installed, the cambered surface with the thread of the fixed inserting key 3 corresponds to the smooth section 21 of the self-fixing nut 2, the thread of the fixed inserting key 3 does not correspond to the thread of the self-fixing nut 2, the fixed inserting key 3 can be directly inserted into the concave cavity, the spring 24 is pressed until the bottom of the screw thread B22 is reached, the fixed inserting key 3 is rotated by 45-90 degrees to be screwed, the thread is screwed to fix the fixed inserting key 3 at a fixed position, and the spring 24 is respectively pressed in the second section cavity to complete the.
When the self-fixing bolt is installed and used, step 1, the self-fixing bolt 1 penetrates through a prepared bolt hole of a processed connecting component;
and 2, aligning two threaded sides of the self-fixing nut 2 with two cut sides of the self-fixing bolt 1, and sleeving the self-fixing bolt 1 to the bottom.
And step 3, rotating the self-fixing nut 2 by 90 degrees (clockwise in the example) until the self-fixing nut contacts the self-fixing bolt 1, stopping threading and positioning, and locking the nut and the bolt.
And 4, after the self-fixing nut is installed in place, a gap is reserved between the inner side of the self-fixing nut 2 and the self-fixing bolt 1, an inner hexagonal wrench is used for inserting the inner hexagonal adjusting hole 33 of the fixed inserting key 3 into the adjusting hole 23, the fixed inserting key 3 is rotated to align the gap, the fixed inserting key 3 is ejected out and inserted into the gap under the action of the spring 24, the self-fixing nut is fixed and cannot rotate reversely, loosen or return, the connection is permanent and self-fixing, the adjusting hole 23 is sealed by the rubber plug 4, so that the whole connection has waterproofness, and the installation is finished.
In this example, the length of the rod body of the self-fixing bolt 1 and the length of the connecting rod 121 can be set according to the actual thickness of the workpiece, the outer periphery of the self-fixing nut 2 and the outer periphery of the self-fixing bolt 1 can be in a quadrangular or hexagonal shape, the installation operation is guaranteed, and the cost is saved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (6)
1. A self-setting, bolt-pin type fastener, comprising:
the self-fixing bolt is in a cuboid shape at one end connected in a threaded manner, and only the outer peripheral wall of the self-fixing bolt is provided with a screw thread A;
the self-fixing nut is provided with a concave cavity and an adjusting hole, the concave cavity is divided into a first section cavity and a second section cavity, the inner wall of the first section cavity consists of a screw thread B and a smooth section for cutting the screw thread, the second section cavity is positioned at the bottom of the concave cavity, a spring is arranged in the second section cavity, and the adjusting hole is positioned at the bottom surface of the concave cavity and communicates the concave cavity with the outside;
the fixed inserting key is Jiong-shaped and consists of two half-moon columns and a top cover, the two half-moon columns are connected with the top cover and are symmetrically distributed, the arc-shaped peripheral wall at the end part of the top cover of the fixed inserting key is provided with a plurality of circles of threads, and the center of the outer surface of the top cover is provided with an inner angle adjusting hole matched with the adjusting hole; the end of the top cover extends into the concave cavity and can be in threaded connection with the screw thread B and compress the spring;
when the self-fixing bolt is in threaded connection with the self-fixing nut, the screw thread A is meshed with the screw thread B, two half-moon-shaped holes are formed between the self-fixing bolt and the self-fixing nut, and two half-moon columns of the fixed inserting key are in matched insertion connection with the two holes.
2. A self-setting bolt-type fastener as defined in claim 1 wherein the self-setting bolt comprises a shank and a cap, the shank comprising a connecting rod and a threaded segment, the connecting rod connecting the cap to the threaded segment, the threaded segment being rectangular.
3. A self-anchoring bolt-type fastener as defined in claim 1, wherein said thread a is comprised of two symmetrically distributed arc lengths a, the length of arc length a being 1/4 of the bolt circumference, and said thread B is comprised of two symmetrically distributed arc lengths B, the length of arc length B being 1/4 of the bolt circumference.
4. A self-fixating bolt-type fastener according to claim 1, further comprising a rubber plug for plugging the adjustment hole.
5. A self-setting pin type fastener as recited in claim 1, wherein said inner angle adjustment hole is hexagonal and the diameter of its circumscribed circle is no greater than the diameter of the adjustment hole.
6. A self-setting bolt-type fastener as claimed in any one of claims 1 to 5, wherein said setting key is a rubber setting key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020048192.4U CN211550223U (en) | 2020-01-10 | 2020-01-10 | Self-fixing bolt type fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020048192.4U CN211550223U (en) | 2020-01-10 | 2020-01-10 | Self-fixing bolt type fastener |
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| Publication Number | Publication Date |
|---|---|
| CN211550223U true CN211550223U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020048192.4U Active CN211550223U (en) | 2020-01-10 | 2020-01-10 | Self-fixing bolt type fastener |
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| CN (1) | CN211550223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041410A1 (en) * | 2022-08-26 | 2024-02-29 | 深圳市洲明科技股份有限公司 | Back frame connection structure and back frame device |
-
2020
- 2020-01-10 CN CN202020048192.4U patent/CN211550223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041410A1 (en) * | 2022-08-26 | 2024-02-29 | 深圳市洲明科技股份有限公司 | Back frame connection structure and back frame device |
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