CN208702860U - Fastener - Google Patents

Fastener Download PDF

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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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CN
China
Prior art keywords
axis body
hole
main shaft
lock part
tight lock
Prior art date
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Active
Application number
CN201821318286.8U
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Chinese (zh)
Inventor
张贤君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Xianli Machinery Co Ltd
Original Assignee
Ningbo Xianli Machinery Co Ltd
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Application filed by Ningbo Xianli Machinery Co Ltd filed Critical Ningbo Xianli Machinery Co Ltd
Priority to CN201821318286.8U priority Critical patent/CN208702860U/en
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Publication of CN208702860U publication Critical patent/CN208702860U/en
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Anticipated expiration legal-status Critical

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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

Fastener
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.
CN201821318286.8U 2018-08-15 2018-08-15 Fastener Active CN208702860U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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