CN208702860U - Fastener - Google Patents
Fastener Download PDFInfo
- Publication number
- CN208702860U CN208702860U CN201821318286.8U CN201821318286U CN208702860U CN 208702860 U CN208702860 U CN 208702860U CN 201821318286 U CN201821318286 U CN 201821318286U CN 208702860 U CN208702860 U CN 208702860U
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- axis body
- hole
- main shaft
- lock part
- tight lock
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Abstract
The utility model provides a kind of fastener, belongs to field of mechanical technique.This fastener includes main shaft, upper axis body and lower axis body, channel is axially offered on main shaft, upper axis body and lower axis body are arranged in channel and are threadedly coupled with main shaft, limiting section is formed in the outer end of upper axis body and lower axis body, compressed spring is equipped between limiting section and main shaft, fuel feed hole is axially offered on upper axis body, counterbore is offered on main shaft lateral wall, it is connected between two counterbores by through-hole, in installation in through-hole, there are two be connected between fastening block and two fastening blocks by reset spring, fastening block includes that interconnecting piece and the tight lock part made of rubber material made of metal material form, interconnecting piece is inserted in through-hole, tight lock part is located in counterbore and the outer diameter of tight lock part is greater than through-hole aperture, there is the outer end face of tight lock part the increasing of evagination to rub portion.The utility model has the advantages that structure is simple, practical.
Description
Technical field
The utility model belongs to field of mechanical technique, in particular to a kind of fastener.
Background technique
It is very big to the installation requirements amount of structural member connection fastening currently in civil construction and mechanical erection field.With regard to mesh
For the preceding bolt generally used, when implementing connection terminal operation to component, staff needs to make in component two sides simultaneously
Industry is inserted into nut bolt in side, then in the other side, with tool, nut is tightened.This method for fastening connection structure
Be simple and convenient to operate, carry, but be only applicable to can to beat threaded hole by fastener, and in reality it is some by fastener only
It can beat and not have threaded unthreaded hole, fastening installation can not be carried out using this bolt and nut connection fastening.It can hold installation
Easily there is thread looseness, causes to fasten the case where failing by fastener.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, and it is simple, practical to propose a kind of structure
The strong fastener of property.
The purpose of this utility model can be realized by the following technical scheme: a kind of fastener, which is characterized in that including master
Axis body, upper axis body and lower axis body, axially offer channel on main shaft, and upper axis body and lower axis body are arranged in channel up and down respectively
It is interior and be threadedly coupled with main shaft, it extends radially outwardly in the outer end of upper axis body and lower axis body and is formed with limiting section, limiting section
It is equipped with compressed spring between main shaft, the fuel feed hole communicated with channel, the import of fuel feed hole are axially offered on upper axis body
Place's sealed set has plug, and symmetrically arranged counterbore is radially offered on the two opposite lateral walls of main shaft, and two is heavy
It is connected between hole by through-hole, through-hole is connected with channel and the aperture of through-hole is less than the aperture of counterbore, installs in through-hole
There are two between fastening block and two fastening blocks by reset spring be connected, fastening block include the interconnecting piece made of metal material and
The tight lock part made of rubber material forms, and interconnecting piece is inserted in through-hole, and tight lock part is located in counterbore and the outer diameter of tight lock part
Greater than through-hole aperture, there is the increasing of evagination to rub portion and when upper axis body and lower axis body are axially moved into channel for the outer end face of tight lock part
When fastening block can be made to move along through-hole and make tight lock part stretch out counterbore.
In above-mentioned fastener, the inner end of upper axis body and lower axis body is conus portion, interconnecting piece inner face upper and lower two
Side all has lead-in angle, and conus portion can be against in lead-in angle when upper axis body and lower axis body move axially.
Compared with prior art, the utility model has the advantage that when using this fastener, by upper axis body and lower axle
Body screws out a part from main shaft, so that upper axis body and lower axis body are not contacted with fastening block, fastening block is in reset spring at this time
Under the action of contracting in through hole, that is to say, that the tight lock part on fastening block is reduced at counterbore；Then main shaft is inserted into tight
On firmware, upper axis body and lower axis body are then rotated, so that upper axis body and lower axis body be along the inside precession in channel, when upper axis body and lower axle
When the conus portion of body is at the lead-in angle to fastening block, fastening block stress is simultaneously displaced outwardly along through-hole, so that fastening block
On tight lock part remove and be arranged in by fastener inner wall from counterbore so that fastener can be fastened in by fastener
On, it is easy for installation；
The tight lock part of fastening block is made of rubber material simultaneously, while there is the outer end face of tight lock part the increasing of evagination to rub
Portion, this makes tight lock part when being displaced outwardly and with being in close contact by fastener inner wall, and tight lock part energy compressive deformation is to increase
With by the frictional force between fastener inner wall.The compressed spring being arranged on upper axis body and lower axis body can be applied to by fastener jointly
Add elastic force, is securely fastened to together by fastener in this way；
The outer diameter of tight lock part is greater than through-hole aperture simultaneously, and is connected between two fastening blocks by reset spring, so that two is tight
Gu block mutually restricts so that will not fall from through hole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure, 1, main shaft；11, channel；12, through-hole；13, counterbore；2, upper axis body；21, fuel feed hole；3, lower axis body；4,
Fastening block；41, interconnecting piece；411, lead-in angle；42, tight lock part；421, increase the portion that rubs；5, reset spring；6, compressed spring；7, it blocks up
Head；8, limiting section；9, conus portion.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this fastener includes main shaft 1, upper axis body 2 and lower axis body 3, axially offered on main shaft 1
Channel 11, upper axis body 2 and lower axis body 3 are arranged in channel 11 up and down respectively and are threadedly coupled with main shaft 1, in upper 2 He of axis body
The outer end of lower axis body 3, which extends radially outwardly, is formed with limiting section 8, and compressed spring 6 is equipped between limiting section 8 and main shaft 1,
The fuel feed hole 21 communicated with channel 11 is axially offered on upper axis body 2, the entrance sealed set of fuel feed hole 21 has plug 7,
Symmetrically arranged counterbore 13 is radially offered on the two opposite lateral walls of main shaft 1, passes through through-hole between two counterbores 13
12 are connected, and through-hole 12 is connected with channel 11 and the aperture of through-hole 12 is less than the aperture of counterbore 13, are equipped in through-hole 12
It is connected between two fastening blocks 4 and two fastening blocks 4 by reset spring 5, fastening block 4 includes the interconnecting piece made of metal material
41 and the tight lock part 42 made of rubber material form, interconnecting piece 41 is inserted in through-hole 12, and tight lock part 42 is located in counterbore 13
And the outer diameter of tight lock part 42 is greater than 12 aperture of through-hole, there is the increasing of evagination to rub portion 421 and when upper axis body 2 for the outer end face of tight lock part 42
Fastening block 4 can be made to move along through-hole 12 when axially moving into channel 11 with lower axis body 3 and tight lock part 42 is made to stretch out counterbore 13, on
The inner end of axis body 2 and lower axis body 3 is conus portion 9, and 41 inner face of interconnecting piece all has lead-in angle 411 in two sides up and down, and works as
Conus portion 9 can be against in lead-in angle 411 when upper axis body 2 and lower axis body 3 move axially.
When using this fastener, upper axis body 2 and lower axis body 3 are screwed out into a part from main shaft 1, so that upper axis body 2
It is not contacted with lower axis body 3 with fastening block 4, fastening block 4 contracts at through-hole 12 under the action of reset spring 5 at this time, that is to say, that
Tight lock part 42 on fastening block 4 is reduced at counterbore 13；Then main shaft 1 is inserted by fastener, then rotates upper axis body 2
With lower axis body 3 so that upper axis body 2 and lower axis body 3 be along the inside precession in channel 11, when the conus portion 9 of upper axis body 2 and lower axis body 3 supports
When at the lead-in angle 411 to fastening block 4,4 stress of fastening block is simultaneously displaced outwardly along through-hole 12, so that on fastening block 4
Tight lock part 42 is removed from counterbore 13 and is arranged in by fastener inner wall, so that fastener can be fastened in by fastener
On, it is easy for installation.
The tight lock part 42 of fastening block 4 is made of rubber material simultaneously, while the outer end face of tight lock part 42 has evagination
Increase the portion 421 that rubs, this makes tight lock part 42 when being displaced outwardly and with being in close contact by fastener inner wall, and tight lock part 42 can be by buckling
Shape is to increase and by the frictional force between fastener inner wall.The compressed spring 6 being arranged on upper axis body 2 and lower axis body 3 can be altogether
Elastic force is applied by fastener in the same direction, is securely fastened to together by fastener in this way.
The outer diameter of tight lock part 42 is greater than 12 aperture of through-hole simultaneously, and is connected between two fastening blocks 4 by reset spring 5, from
And two fastening blocks 4 mutually restrict so that will not fall from through-hole 12.
And when needing to dismantle, axis body 2 and lower axis body 3 only need to be screwed out outward, make interior upper axis body 2 and lower axis body 3 and tight
Gu block 4 disengages, fastening block 4 bounces back under the action of reset spring 5 and bounces back to tight lock part 42 again at counterbore 13, from
And this fastener is made to be detached from fastening relationships with the component that need to be connected, facilitate the extraction of fastener.
Simultaneously by the fuel feed hole 21 on upper axis body 2, lubricating oil can be directed at 1 channel 11 of main shaft and from latch segment
Gap outflow between through-hole 12, so that lubricating oil be enable to be distributed in 1 outer wall surrounding of main shaft, thus guarantee this fastener and
Contact surface between its metal object connected has remained lubricating oil, avoids that fastener gets rusty and be difficult to dismantle ask
Topic.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (2)
1. a kind of fastener, which is characterized in that including main shaft, upper axis body and lower axis body, axially offered on main shaft logical
Road, upper axis body and lower axis body are arranged in the channel in and are threadedly coupled with main shaft up and down respectively, upper axis body and lower axis body outside
End, which extends radially outwardly, is formed with limiting section, and compressed spring is equipped between limiting section and main shaft, is axially opened on upper axis body
Equipped with the fuel feed hole communicated with channel, the entrance sealed set of fuel feed hole has plug, on the two opposite lateral walls of main shaft
Symmetrically arranged counterbore is radially offered, is connected between two counterbores by through-hole, through-hole is connected and leads to channel
The aperture in hole is less than the aperture of counterbore, and in installation in through-hole, there are two pass through reset spring phase between fastening block and two fastening blocks
Even, fastening block includes that interconnecting piece and the tight lock part made of rubber material made of metal material form, and interconnecting piece is inserted in
In through-hole, tight lock part is located in counterbore and the outer diameter of tight lock part is greater than through-hole aperture, and the outer end face of tight lock part has the increasing of evagination
Rub portion and can be such that fastening block moves along through-hole and to stretch out tight lock part heavy when upper axis body and lower axis body are axially moved into channel
Hole.
2. fastener according to claim 1, which is characterized in that the inner end of upper axis body and lower axis body is conus portion,
Interconnecting piece inner face all has lead-in angle in two sides up and down, and conus portion can be against to leading when upper axis body and lower axis body move axially
Enter on angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821318286.8U CN208702860U (en) | 2018-08-15 | 2018-08-15 | Fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821318286.8U CN208702860U (en) | 2018-08-15 | 2018-08-15 | Fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702860U true CN208702860U (en) | 2019-04-05 |
Family
ID=65943300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821318286.8U Active CN208702860U (en) | 2018-08-15 | 2018-08-15 | Fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208702860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963533A (en) * | 2020-07-31 | 2020-11-20 | 江苏永昊高强度螺栓有限公司 | Expansion bolt convenient to take out |
-
2018
- 2018-08-15 CN CN201821318286.8U patent/CN208702860U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963533A (en) * | 2020-07-31 | 2020-11-20 | 江苏永昊高强度螺栓有限公司 | Expansion bolt convenient to take out |
| CN111963533B (en) * | 2020-07-31 | 2022-04-26 | 江苏永昊高强度螺栓有限公司 | Expansion bolt convenient to take out |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |