CN208578835U - Stop nut - Google Patents
Stop nut Download PDFInfo
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- CN208578835U CN208578835U CN201820944873.1U CN201820944873U CN208578835U CN 208578835 U CN208578835 U CN 208578835U CN 201820944873 U CN201820944873 U CN 201820944873U CN 208578835 U CN208578835 U CN 208578835U
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- snap tab
- nut body
- close
- face
- internal thread
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Abstract
The utility model provides a kind of stop nut, comprising: nut body, inside form counterbore, counterbore is arranged through nut body, and counterbore includes countersunk head and internal thread hole, and countersunk head is located at one end of nut body, and internal thread hole is used to be adapted to connection with bolt；One end forms flange；Snap tab is set to the outside of one end of nut body, gap is reserved between one end of nut body；First through hole identical with internal thread hole size is formed at the position opposite with internal thread hole thereon；Its edge formation has multiple clamping parts, and clamping part is adapted to clamping with flange；Locking part is filled between countersunk head and snap tab, and first end face is close to the bottom of countersunk head, and second end face is close to snap tab, forms the second through-hole at the position opposite with internal thread hole；When the gap between snap tab and nut body reduces, locking part stress deformation reduces the diameter of the second through-hole to intermediate projections.Above-mentioned stop nut can effectively slow down the speed of bolt pretightening decline.
Description
Technical field
The utility model relates to fastener areas, and in particular to a kind of stop nut.
Background technique
Due to being clearance fit between the screw thread of common screw bolt and nut, when by transverse load or vibration, bolt and spiral shell
Small lateral vibration can occur for mother, decay so as to cause the pretightning force of bolt, and the pretightning force makes to refer to that bolt tightens rear bolt
The axial compressive force generated with nut.
Common check bolt is embedding nylon locking nut at present, and structure includes nut and nylon ring, the nut
Tail portion forms nylon accommodating groove, and the nylon ring is set in nylon accommodating groove.After embedding nylon locking nut lockk bolt,
The effect that nylon ring will receive bolt and nylon accommodating groove is deformed, and the gap between nylon accommodating groove and bolt is filled up,
Increase the frictional force between embedding nylon locking nuts and bolt, plays locking effect.If however screw bolt and nut fastening after by
To transverse load or vibration, it is usually two or three tooth that front is engaged that nut stress is biggish, due to before nut between bolt
Appoint so there are gaps, lateral displacement is generated after nut stress, then bolt pretightning force decline.So this nut can not
The speed for effectivelying prevent bolt pretightening to decline can only extend the time of screw bolt and nut separation.
Summary of the invention
The utility model aims to solve the problem that stop nut in the prior art cannot slow down asking for bolt pretightening decrease speed
Topic,
To solve the above problems, the utility model provides a kind of stop nut, comprising:
Nut body, inside form counterbore, the counterbore is arranged through the nut body, and the counterbore includes heavy
Head and internal thread hole, the countersunk head are located at one end of the nut body, and the internal thread hole is for being adapted to connection with bolt；Institute
It states one end and forms flange；
Snap tab is set to the outside of one end of the nut body, is reserved between one end of the nut body
Gap；First through hole identical with the internal thread hole size is formed at the position opposite with the internal thread hole thereon；Its
Edge formation has multiple clamping parts, and the clamping part is adapted to clamping with the flange；
Locking part is filled between the countersunk head and the snap tab, and first end face is close to the bottom of the countersunk head, the
Biend is close to the snap tab, forms the second through-hole at the position opposite with the internal thread hole；When the snap tab
When gap between the nut body reduces, the locking part stress deformation makes second through-hole to intermediate projections
Diameter reduces.
Optionally, in above-mentioned stop nut:
The diameter of second through-hole is not less than the diameter of the internal thread hole.
Optionally, in above-mentioned stop nut, the locking part includes:
Wedge ring, first end face are close to the bottom of the countersunk head, and second end face is not parallel to the plane of the snap tab；
Throw-out collar, between the wedge ring and the snap tab, first end face is close to the snap tab, second end face
It is close to the second end face of the wedge ring, and parallel with the second end face of the wedge ring.
Optionally, in above-mentioned stop nut:
The countersunk head, top is cylindrical, and bottom is in inverted truncated cone-shaped；
The wedge ring, section be it is trapezoidal, angle between the upper bottom in section and first waist in its section is greater than 90 °；
First waist is close to the throw-out collar side setting, and the nut body side setting is close at the upper bottom；
The throw-out collar, section are right-angled trapezium, and second waist in section is close to the first waist setting of the wedge ring, section
The nut body side setting is close in the bottom in face, and right angle waist is close to the snap tab side setting.
Optionally, in above-mentioned stop nut:
The wedge ring is along the circumferential direction uniformly provided with multiple grooves on the edge of second end face.
Optionally, in above-mentioned stop nut:
The locking part is prepared by nylon.
Optionally, in above-mentioned stop nut:
There are four the clamping parts, and four clamping parts are uniformly distributed along the edge of the snap tab.
Optionally, in above-mentioned stop nut, the clamping part includes:
First snap-gauge, the side opposite with the nut body in the snap tab, one end are vertically connected at institute
It states on the edge of snap tab；
Second snap-gauge, one end is vertical with the other end of first snap-gauge to be connect, with the snap tab formed with it is described
The card slot of flange adaptation clamping.
Optionally, in above-mentioned stop nut:
The nut body is six prismatics.
Stop nut described in the utility model, when in use, one end of bolt sequentially pass through the first through hole of snap tab
After the second through-hole of locking part, rotates and connect with the internal thread hole of nut body.The stop nut described in the present embodiment with
Bolt screws certain length, and when starting to generate pretightning force, pretightning force acts on snap tab, so that the nut body and buckle
The gap reserved between piece reduces, and locking part is caused to deform under the pressure at both ends, and protrusion encases bolt completely among it, to fill out
The gap between nut front end and bolt is filled, generates lateral displacement after preventing nut stress, effectively prevent declining for bolt pretightening
Subtract.Meanwhile because the counterbore on nut body, which increases bolt flange face, engages the distance between tooth with stop nut first,
It is highly beneficial to some thin fastening parts.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of stop nut described in the utility model embodiment.
Fig. 2 is the diagrammatic cross-section of stop nut described in the utility model embodiment.
Fig. 3 is the diagrammatic cross-section of stop nut described in another embodiment of the utility model.
Fig. 4 is the diagrammatic cross-section of stop nut described in another embodiment of the utility model.
Fig. 5 is the Structure explosion diagram of stop nut described in the utility model one embodiment.
Fig. 6 is the scheme of installation of stop nut described in the utility model one embodiment.
Fig. 7 is the structural schematic diagram of stop nut described in the utility model further embodiment.
Specific embodiment
The utility model embodiment is further illustrated below in conjunction with attached drawing.It needs in the description of the present invention,
Bright is unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can
To be to be connected directly, the connection of two component internals can also be can be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The present embodiment provides a kind of stop nuts, as depicted in figs. 1 and 2, including nut body 1, snap tab 2 and locking part
3.Fig. 1 is the section explosive view of stop nut described in the present embodiment, and Fig. 2 shows to loosen the structure of nut described in the present embodiment
It is intended to, as depicted in figs. 1 and 2, one end of the nut body 1 forms flange 4, and inside forms counterbore, and counterbore runs through
Nut body 1, wherein counterbore is divided into two parts, including countersunk head 11 and internal thread hole 12, countersunk head 11 is located at the one of nut body 1
End, and internal thread hole 12 can be used for being adapted to connection with bolt.As shown in Figures 1 and 2, the snap tab 2 is set to nut sheet
The outside of one end of body 1, and gap is reserved between one end of nut body 1, the among it position opposite with internal thread hole 12
The place of setting forms first through hole 21 identical with 12 size of internal thread hole, and edge formation has multiple clamping parts 5, the card
Buckle 5 is adapted to clamping with the flange 4 of the nut body 1.As shown in Figures 1 and 2, locking part 3 is filled in the countersunk head 11
Between the snap tab 2, the first end face of locking part 3 is close to the bottom of the countersunk head 11, and second end face is close to the buckle
Piece 2, locking part 3 form the second through-hole 31 at the position opposite with the internal thread hole 12, when the snap tab 2 and the spiral shell
When gap between maternal body reduces, 3 stress deformation of locking part subtracts the diameter of second through-hole 31 to intermediate projections
It is small.
Stop nut described in the present embodiment, when in use, one end of bolt sequentially pass through the first through hole 21 of snap tab 2
After the second through-hole 31 of locking part 3, rotates and connect with the internal thread hole 12 of nut body 1.It is locking described in the present embodiment
Nut and bolt screw certain length, and when starting to generate pretightning force, pretightning force acts on snap tab 2, so that the nut sheet
The gap reserved between body 1 and snap tab 2 reduces, and locking part 3 is caused to deform under the pressure at both ends, among it protrusion packet completely
Firmly bolt generates lateral displacement after preventing nut stress, effectively prevent bolt to fill the gap between nut front end and bolt
The decaying of pretightning force.Meanwhile because the counterbore on nut body 1, which increases bolt flange face, engages tooth with stop nut first
The distance between, it is highly beneficial to some thin fastening parts.
Generally, the diameter of second through-hole 31 is not less than the diameter of internal thread hole 12, so during installation, locking part
3 will not influence freely screwing between bolt and stop nut, improve installation effectiveness.Nut body 1 can be used hexagonal prisms, and six
The side of prism can be such that stop nut is easily installed.
Above-mentioned locking part 3 can be used nylon material and be prepared, and the locking part 3 of nylon material is bonded with the screw thread of bolt
Afterwards, bolt can form screw thread trace in the locking part 3 of nylon material, will not so consume too many bolt axial force.Locking part 3
Concrete shape can be depending on the concrete shape of countersunk head 11, but locking part 3 need to fill the area between full countersunk head 11 and snap tab 2
Domain.
The present embodiment provides a kind of specific structures of locking part 3, and as shown in Figure 3 and Figure 4, Fig. 3 and Fig. 4 give two
The specific structure of kind locking part 3, the locking part 3 include wedge ring 33 and throw-out collar 32, and it is heavy that the first end face of the wedge ring 33 is close to
First 11 bottom, second end face are not parallel to the plane of the snap tab 2.Throw-out collar 32 is located at the wedge ring 33 and the snap tab
Between 2, the first end face of throw-out collar 32 is close to the snap tab 2, and second end face is close to the second end face of the wedge ring 33, and with
The second end face of the wedge ring 33 is parallel.Wherein the second end face of wedge ring 33 tilts upward in Fig. 3, therefore, when the snap tab 2
When gap between the nut body reduces, the throw-out collar 32 squeezes the wedge ring 33, makes the second end of the wedge ring 33
The internal diameter in face reduces.In Fig. 4, the second end face of wedge ring 33 diagonally downward, therefore, when the snap tab 2 and the nut body
Between gap reduce when, the wedge ring 33 squeezes the throw-out collar 32, reduces the internal diameter of the second end face of the throw-out collar 32.
The concrete shape of the countersunk head 11 is also arbitrary, and the present embodiment provides a kind of concrete shape of countersunk head 11, such as Fig. 5
Shown, the top of the countersunk head 11 is cylindrical, and bottom is in inverted truncated cone-shaped.Correspondingly, the present embodiment provides a kind of locking
The specific structure in portion 3, as shown in figure 5, the section of the wedge ring 33 is trapezoidal, and first waist at the upper bottom in its section and its section
Between angle be greater than 90 °, first waist is close to 32 side of the throw-out collar setting, and the nut body 1 is close at the upper bottom
Side setting.The section of the throw-out collar 32 is right-angled trapezium, and second waist in section is close to the first waist setting of the wedge ring 33,
1 side of the nut body setting is close in the bottom in its section, and the right angle waist in section is close to 2 side of the snap tab setting.
When in use, as shown in fig. 6, Fig. 6 shows state when stop nut is fastened with bolt 6, bolt 6 and stop nut are for tight
Gu the first plate layer 7 and the second plate layer 8, the stop nut described in the bolt and the present embodiment screws certain length, and starts to produce
When raw pretightning force, pretightning force just acts on snap tab 2, is squeezed by the angle of the bottom of throw-out collar 32 and the countersunk head 11 of nut body 1
Wedge ring 33 is pressed, wedge ring 33 is made to think that bolt-center is mobile, until snap tab 2 is close to one end of nut body 1.Pass through setting for throw-out collar 32
It sets, wedge ring 33 is enable to embrace bolt completely, and be firmly placed in front of bolt and stop nut, prevent stop nut in work
Laterally transmission occurs when making.
When throw-out collar 32 pushes wedge ring 33 to middle shrinkage, push pretightning force a part of throw-out collar 32 for overcoming wedge ring 33
The internal force of itself annulus, as shown in fig. 7, therefore can be along the circumferential direction uniformly provided on the edge of the second end face of wedge ring 33
Multiple grooves 34 strive for that pretightning force is made to be used to keep wedge ring 33 mobile to center as far as possible.
In certain embodiments, as shown in fig. 7, there are four the clamping parts 5, four clamping parts 5 are along described
The problem of edge of snap tab 2 is uniformly distributed, and can so avoid forming hydrops in stop nut at work, causes corrosion.
Specifically, the clamping part 5 includes the first snap-gauge and the second snap-gauge, and the first snap-gauge is located in the snap tab 2 and the nut
The opposite side of ontology 1, one end are vertically connected on the edge of the snap tab 2；One end of second snap-gauge and described first
The other end of snap-gauge vertically connects, and the card slot that clamping is adapted to the flange 4 is formed with the snap tab 2.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (9)
1. a kind of stop nut characterized by comprising
Nut body, inside form counterbore, the counterbore is arranged through the nut body, the counterbore include countersunk head and
Internal thread hole, the countersunk head are located at one end of the nut body, and the internal thread hole is for being adapted to connection with bolt；Described one
End forms flange；
Snap tab is set to the outside of one end of the nut body, is reserved with gap between one end of the nut body；
First through hole identical with the internal thread hole size is formed at the position opposite with the internal thread hole thereon；Its edge at
Type has multiple clamping parts, and the clamping part is adapted to clamping with the flange；
Locking part is filled between the countersunk head and the snap tab, and first end face is close to the bottom of the countersunk head, second end
The snap tab is close in face, forms the second through-hole at the position opposite with the internal thread hole；When the snap tab and institute
When stating the gap reduction between nut body, the locking part stress deformation makes the diameter of second through-hole to intermediate projections
Reduce.
2. stop nut according to claim 1, it is characterised in that:
The diameter of second through-hole is not less than the diameter of the internal thread hole.
3. stop nut according to claim 2, which is characterized in that the locking part includes:
Wedge ring, first end face are close to the bottom of the countersunk head, and second end face is not parallel to the plane of the snap tab；
Throw-out collar, between the wedge ring and the snap tab, first end face is close to the snap tab, and second end face is close to
The second end face of the wedge ring, and it is parallel with the second end face of the wedge ring.
4. stop nut according to claim 3, it is characterised in that:
The countersunk head, top is cylindrical, and bottom is in inverted truncated cone-shaped；
The wedge ring, section be it is trapezoidal, angle between the upper bottom in section and first waist in its section is greater than 90 °；It is described
First waist is close to the throw-out collar side setting, and the nut body side setting is close at the upper bottom；
The throw-out collar, section are right-angled trapezium, and second waist in section is close to the first waist setting of the wedge ring, section
The nut body side setting is close in bottom, and right angle waist is close to the snap tab side setting.
5. stop nut according to claim 4, it is characterised in that:
The wedge ring is along the circumferential direction uniformly provided with multiple grooves on the edge of second end face.
6. stop nut according to claim 1-5, it is characterised in that:
The locking part is prepared by nylon.
7. stop nut according to claim 6, it is characterised in that:
There are four the clamping parts, and four clamping parts are uniformly distributed along the edge of the snap tab.
8. stop nut according to claim 7, which is characterized in that the clamping part includes:
First snap-gauge, the side opposite with the nut body in the snap tab, one end are vertically connected at the card
On the edge of cramp；
Second snap-gauge, one end is vertical with the other end of first snap-gauge to be connect, and is formed and the flange with the snap tab
It is adapted to the card slot of clamping.
9. stop nut according to claim 8, it is characterised in that:
The nut body is six prismatics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944873.1U CN208578835U (en) | 2018-06-19 | 2018-06-19 | Stop nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944873.1U CN208578835U (en) | 2018-06-19 | 2018-06-19 | Stop nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578835U true CN208578835U (en) | 2019-03-05 |
Family
ID=65508810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820944873.1U Active CN208578835U (en) | 2018-06-19 | 2018-06-19 | Stop nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895369A (en) * | 2021-09-29 | 2022-01-07 | 岚图汽车科技有限公司 | Engine anticreep pencil fixed bolster |
-
2018
- 2018-06-19 CN CN201820944873.1U patent/CN208578835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895369A (en) * | 2021-09-29 | 2022-01-07 | 岚图汽车科技有限公司 | Engine anticreep pencil fixed bolster |
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