CN205371256U - Safe self -locking nut - Google Patents
Safe self -locking nut Download PDFInfo
- Publication number
- CN205371256U CN205371256U CN201620016461.2U CN201620016461U CN205371256U CN 205371256 U CN205371256 U CN 205371256U CN 201620016461 U CN201620016461 U CN 201620016461U CN 205371256 U CN205371256 U CN 205371256U
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- clamp ring
- nut
- nut body
- counterbore
- safe self
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Abstract
The utility model relates to a safe self -locking nut, including nut body and clamp ring, the nut body has the through -hole, and this through -hole is formed by counter bore and the linking of screw hole axial, and the aperture of counter bore is greater than the aperture of screw hole, and an at least recess has been seted up to the counter bore section on the nut body, and the screw hole section on the nut body is equipped with the nut screw thread, the clamp ring is the ring bodies, is equipped with locking threads on the inner wall of ring bodies, corresponds on the outer wall of clamp ring to be equipped with at least one boss, the clamp ring is settled in the counter bore of the nut body rather than interference fit, in an at least boss of clamp ring inlays an at least recess of locating the nut body, and the locking threads of clamp ring and the nut screw thread phase -match of nut body. The utility model discloses a combination of nut body and clamp ring, the nut body is mutually supported with the clamp ring for this nut good reliability, simple structure, machining precision are low, low cost, dismouting and maintain convenient, and can effectively prevent to produce not hard uply between nut and the bolt.
Description
Technical field
This utility model belongs to technical field of fastening, is specifically related to a kind of nut, particularly relates to a kind of safe self-locking nut.
Background technology
Nut is a kind of commonly used securing member, as the industries such as railway, bridge, electric power, machinery widely use invariably.Plain nut, in industrial application, particularly bears vibration place (bolts and nuts such as: rail clip system couple) in thread connection pair, often occurs loosening and cause the situation that equipment or fastening were lost efficacy.In order to avoid nut loosening, people generally employ following measure: by changing form of thread to make the thread being meshed be deformed, to load nylon jacket between nut and bolt to increase thread skin-friction force, to cross pin between nuts and bolt with holes to stop it to relatively rotate etc., reaches the anti-loosing effect of nut with this.But, although these methods can realize the locking purpose of nut in varying degrees, but due to the machining accuracy of these nuts high, disposable relatively costly, install and use inconvenience etc. reason, result in this type of nut and do not obtain general promoting the use of.
In consideration of it, providing a kind of safe self-locking nut is the problem that this utility model is studied.
Summary of the invention
This utility model provides a kind of safe self-locking nut, its purpose is to solve the problem of existing plain nut reliability, less stable, solve simultaneously existing stop nut machining accuracy high, disposable relatively costly, install and use the problems such as inconvenience.
In order to achieve the above object, the technical solution of the utility model is: a kind of safe self-locking nut, including nut body and clamp ring, its innovative point is in that: described nut body center has a through hole, this through hole is axially connected by one section of counterbore and one section of screwed hole and forms, the aperture of counterbore is more than the aperture of screwed hole, and the counterbore section on described nut body offers at least one groove, and the screwed hole section on nut body is provided with nut thread；Described clamp ring is a ring bodies, and the inwall of this ring bodies is provided with locking screw, and the outer wall of described clamp ring is correspondingly provided with at least one boss；In a state of use, described clamp ring is placed in the counterbore of the nut body of its interference fit, and now, at least one boss of described clamp ring is embedded at least one groove of nut body, and the locking screw of clamp ring matches with nut thread.
Further, the circumference profile of described counterbore is generally circular in shape.
Further, being radially arranged or axially arranged along counterbore of the groove on described nut body, corresponding described boss being radially arranged or axially arranged along clamp ring.
Further, described groove is consistent along the axial depth of nut body and the degree of depth of counterbore.
Further, the height of described clamp ring is slightly larger than the degree of depth of described counterbore.
Further, described clamp ring cross section radially is avette, the outer surface of clamp ring in clamp ring circumference with counterbore wall portion interference fit.
Further, described clamp ring circular in cross-section radially, and clamp ring is inverted trapezoidal along its axial cross section, the outer surface of clamp ring is interference fit whole in counterbore wall in clamp ring circumference.
Further, described nut thread is shaped as triangle, rectangle, zigzag or circular arc.
Relevant content in technique scheme is explained as follows:
In such scheme, described nut body can also be able to be hex nut etc. for tetragonal nut.
In such scheme, described nut body and clamp ring can also be able to be non-metal elastic part for metalwork, and both can adopt identical material, it would however also be possible to employ different materials, and user can select material according to the needs of its practical service environment.
In such scheme, when finding that under permanent service condition clamp ring produces frictional force deficiency or the forfeiture that plastic deformation causes clamp ring thread and bolt thread, it is possible to clamp ring is extracted, changes a new clamp ring, it is possible to continue to realize nut auto-lock function.
In such scheme, the aperture of counterbore is more than the aperture of screwed hole, and now nut thread is equivalent to the stop surface of clamp ring, by spacing for clamp ring in counterbore.
In such scheme, locking screw matches with nut thread and has many-sided coupling, and locking screw is intended to mate with the tooth form of nut thread, big footpath, pitch, line number and rotation direction.
In such scheme, described groove and projection shape, size, position all match.
Utility model works principle is: this utility model includes nut body and clamp ring, by being pressed into a clamp ring being similar to ellipse in the circular counter bore of nut body, this clamp ring internal ring has the screw thread matching with bolt and being mutually linked, the counterbore interference fit of clamp ring and nut body, " micro-strain " radial dilatation generation tension force that clamp ring produces when being pressed into clamp ring counterbore radially makes the counterbore hole wall of retainer and nut body be adjacent to；The radial force produced therewith after bolt thread extruding clamp ring thread when being screwed into bolt makes the thread of clamp ring internal ring be close to bolt thread surface, thus the frictional force increased between bolt thread and clamp ring thread, it is achieved auto-lock function；Simultaneously as clamp ring circumference has one or several boss having extension diametrically, this boss is suitable with the counterbore extension groove in nut body same position, which prevent clamp ring when bolt is screwed into and rotates together in company with bolt；Such cooperation that screw bolt and nut (includes clamp ring), effectively prevent relatively rotating between bolts and nuts.
Owing to such scheme uses, this utility model compared with prior art has the advantage that
A kind of safe self-locking nut that this utility model provides, combination by nut body and clamp ring, cooperate between nut body and clamp ring so that this nut good reliability, simple in construction, machining accuracy are low, with low cost, and can effectively prevent from producing between nut and bolt to loosen.
This utility model dismounts and easy to maintenance, under permanent service condition, find that clamp ring produces plastic deformation and causes when clamp ring thread is not enough with the frictional force of bolt thread or loses, clamp ring can be extracted, change a new clamp ring, so that it may continue to realize auto-lock function.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing 1 is the axonometric chart of safe self-locking nut in the present embodiment 1；
Accompanying drawing 2 is the explosive view of safe self-locking nut in the present embodiment 1；
Accompanying drawing 3 is the axonometric chart of safe self-locking nut in the present embodiment 2；
Accompanying drawing 4 is the top view of safe self-locking nut in the present embodiment 2；
Accompanying drawing 5 is the side view of safe self-locking nut in the present embodiment 2；
Accompanying drawing 6 is the explosive view of safe self-locking nut in the present embodiment 4；
Accompanying drawing 7 is the explosive view of safe self-locking nut in the present embodiment 5.
In the figures above: 1, nut body；10, nut thread；11, counterbore；12, groove；2, clamp ring, 20, locking screw；21, boss.
Detailed description of the invention
Embodiment 1: a kind of safe self-locking nut
Referring to accompanying drawing 1-2, including nut body 1 and clamp ring 2, in the present embodiment, nut body 1 is hex nut, and nut body 1 center has a through hole, and this through hole is axially connected by one section of counterbore 11 and one section of screwed hole and forms.Wherein, the circumference profile of counterbore 11 is generally circular in shape, and the aperture of counterbore 11 is more than the aperture of screwed hole, and the counterbore section on nut body 1 offers a groove 12, and groove 12 is radially arranged along counterbore 11, and the screwed hole section on nut body 1 is provided with nut thread 10.
Described clamp ring 2 is a ring bodies, the inwall of this ring bodies is provided with locking screw 20, being correspondingly provided with a boss 21 on the outer wall of described clamp ring 2, boss 21 is radially arranged along clamp ring 2, and the boss 21 in clamp ring 2 all mates with groove 12 position on nut body 1, size, shape.The clamp ring 2 of this ring bodies cross section radially is avette, the outer surface of clamp ring 2 in clamp ring 2 circumference with counterbore 11 wall portion interference fit.
In a state of use, clamp ring 2 is placed in the counterbore 11 of the nut body 1 with its interference fit, now, the boss 21 of described clamp ring 2 is embedded in the groove 12 of nut body 1, and the nut thread 10 of the locking screw 20 of clamp ring 2 and nut body 1 matches.
Now, locking screw 20 matches with nut thread 10 and refers to locking screw 20 and all mate with the tooth form of nut thread 10, big footpath, pitch, line number and rotation direction.
Described groove 12 is consistent with the degree of depth of described counterbore 11 along the axial depth of nut body 1；The height of described clamp ring 2 is slightly larger than the degree of depth of described counterbore 11.
Embodiment 2: a kind of safe self-locking nut
Referring to accompanying drawing 3-5, all the other are identical with embodiment 1, are different in that: described nut body 1 is tetragonal nut.
In like manner, in a state of use, clamp ring 2 is placed in the counterbore 11 of the nut body 1 with its interference fit, and now, the boss 21 of described clamp ring 2 is embedded in the groove 12 of nut body 1, and the locking screw 20 of clamp ring 2 matches with nut thread 10.
Embodiment 3, all the other are identical with embodiment 1, it is different in that: the counterbore section on nut body 1 offers two grooves 12, and the outer wall of the clamp ring 2 of correspondence is provided with two boss 21, groove 12 all mates with the position of boss 21, size, shape, and in a state of use, clamp ring 2 is placed in the counterbore 11 of the nut body 1 with its interference fit, now, two boss 21 of described clamp ring 2 are respectively correspondingly embedded in two grooves 12 of nut body 1.
Embodiment 4, referring to accompanying drawing 6, all the other are identical with embodiment 1, are different in that: described locking 2 circular in cross-section radially, and clamp ring 2 is inverted trapezoidal along its axial cross section, the outer surface of clamp ring 2 in clamp ring 2 circumference with the counterbore 11 whole interference fit of wall.
Embodiment 5, referring to accompanying drawing 7, all the other are identical with embodiment 1, it is different in that: the groove 12 on nut body 1 is located at the bottom of counterbore 11, and it is axially arranged along it, corresponding boss 21 is located at clamp ring 2 bottom, namely at clamp ring 2 bottom face along ring bodies axial projection one boss 21, in a state of use, clamp ring 2 is placed in the counterbore 11 of the nut body 1 with its interference fit, now, the boss 21 of described clamp ring 2 is inserted on nut body 1 on the vertical direction of clamp ring 2 and is positioned at the groove 12 bottom counterbore 11, to guarantee that clamp ring 2 will not rotate by opposing nut body 1.
For above-described embodiment, the issuable change of the present embodiment describes and is explained further as follows:
1, in above example, described nut thread 10 is shaped as triangle, rectangle, zigzag or circular arc etc..
2, in above example, the external surface shape of described nut body 1 can also be other shapes, it is not necessary to is only limitted to above tetragonal nut and hex nut, and user can set its external shape as required.
3, in above example, giving the counterbore section on nut body 1 and offer one or two groove 12, the outer wall of corresponding clamp ring 2 is provided with one or two boss 21.Actually, nut body 1 offers three and three with upper groove 12, it is also feasible for setting three and three with convex platform 21 on the outer wall of corresponding clamp ring 2, although above example does not provide, but those skilled in the art is under the enlightenment of above example, it is readily conceivable that and offer three and three on nut body 1 with upper groove 12, it is also enforceable that the outer wall of corresponding clamp ring 2 sets three and three with convex platform 21.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalences made according to this utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (8)
1. a safe self-locking nut, including nut body and clamp ring, it is characterized in that: described nut body center has a through hole, this through hole is axially connected by one section of counterbore and one section of screwed hole and forms, the aperture of counterbore is more than the aperture of screwed hole, counterbore section on described nut body offers at least one groove, and the screwed hole section on nut body is provided with nut thread；
Described clamp ring is a ring bodies, and the inwall of this ring bodies is provided with locking screw, and the outer wall of described clamp ring is correspondingly provided with at least one boss；
In a state of use, described clamp ring is placed in the counterbore of the nut body of its interference fit, and now, at least one boss of described clamp ring is embedded at least one groove of nut body, and the locking screw of clamp ring matches with nut thread.
2. safe self-locking nut according to claim 1, it is characterised in that: the circumference profile of described counterbore is generally circular in shape.
3. safe self-locking nut according to claim 2, it is characterised in that: being radially arranged or axially arranged along counterbore of the groove on described nut body, corresponding described boss being radially arranged or axially arranged along clamp ring.
4. safe self-locking nut according to claim 1, it is characterised in that: described groove is consistent with the degree of depth of described counterbore along the axial depth of nut body.
5. the safe self-locking nut according to claim 1 or 4, it is characterised in that: the height of described clamp ring is slightly larger than the degree of depth of described counterbore.
6. safe self-locking nut according to claim 1, it is characterised in that: described clamp ring cross section radially is avette, the outer surface of clamp ring in clamp ring circumference with counterbore wall portion interference fit.
7. safe self-locking nut according to claim 1, it is characterized in that: described clamp ring circular in cross-section radially, and clamp ring is inverted trapezoidal along its axial cross section, the outer surface of clamp ring is interference fit whole in counterbore wall in clamp ring circumference.
8. safe self-locking nut according to claim 1, it is characterised in that: described nut thread is shaped as triangle, rectangle, zigzag or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016461.2U CN205371256U (en) | 2016-01-08 | 2016-01-08 | Safe self -locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016461.2U CN205371256U (en) | 2016-01-08 | 2016-01-08 | Safe self -locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371256U true CN205371256U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620016461.2U Active CN205371256U (en) | 2016-01-08 | 2016-01-08 | Safe self -locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371256U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270657A (en) * | 2016-08-30 | 2017-01-04 | 河南业豪幕墙装饰工程有限公司 | Curtain wall construction bore template and construction method |
| CN106725061A (en) * | 2017-03-02 | 2017-05-31 | 泉州科牧智能厨卫有限公司 | A kind of toilet cover plate fixing device |
| CN108488203A (en) * | 2018-05-24 | 2018-09-04 | 海盐海博特机械有限公司 | It is a kind of disposably to tighten locking nut |
| CN108547846A (en) * | 2018-05-24 | 2018-09-18 | 海盐海博特机械有限公司 | A kind of anti-loosening link block |
| CN108679073A (en) * | 2018-08-03 | 2018-10-19 | 周峰 | Shockproof screw nut external member |
| CN108953355A (en) * | 2018-09-20 | 2018-12-07 | 海盐县华昇汽车配件有限公司 | A kind of pressure point formula flange nut |
| CN110593767A (en) * | 2018-06-13 | 2019-12-20 | 史密斯国际有限公司 | Split thread for securing an accessory to a body |
| CN112081811A (en) * | 2020-08-17 | 2020-12-15 | 湖北玖天机车部件有限公司 | All-metal locknut and processing method thereof |
| CN112718334A (en) * | 2021-01-25 | 2021-04-30 | 青岛润扬环境科技有限公司 | Self-locking device for threaded connection of pressure atomizing nozzle |
-
2016
- 2016-01-08 CN CN201620016461.2U patent/CN205371256U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270657A (en) * | 2016-08-30 | 2017-01-04 | 河南业豪幕墙装饰工程有限公司 | Curtain wall construction bore template and construction method |
| CN106725061A (en) * | 2017-03-02 | 2017-05-31 | 泉州科牧智能厨卫有限公司 | A kind of toilet cover plate fixing device |
| CN106725061B (en) * | 2017-03-02 | 2022-05-27 | 泉州科牧智能厨卫有限公司 | Closestool cover plate fixing device |
| CN108488203A (en) * | 2018-05-24 | 2018-09-04 | 海盐海博特机械有限公司 | It is a kind of disposably to tighten locking nut |
| CN108547846A (en) * | 2018-05-24 | 2018-09-18 | 海盐海博特机械有限公司 | A kind of anti-loosening link block |
| CN110593767A (en) * | 2018-06-13 | 2019-12-20 | 史密斯国际有限公司 | Split thread for securing an accessory to a body |
| CN110593767B (en) * | 2018-06-13 | 2024-06-11 | 史密斯国际有限公司 | Split threads for securing an accessory to a body |
| CN108679073A (en) * | 2018-08-03 | 2018-10-19 | 周峰 | Shockproof screw nut external member |
| CN108679073B (en) * | 2018-08-03 | 2023-11-14 | 周峰 | Shockproof nut sleeve |
| CN108953355A (en) * | 2018-09-20 | 2018-12-07 | 海盐县华昇汽车配件有限公司 | A kind of pressure point formula flange nut |
| CN108953355B (en) * | 2018-09-20 | 2023-09-29 | 海盐华昇汽配科技股份有限公司 | Pressure point type flange nut |
| CN112081811A (en) * | 2020-08-17 | 2020-12-15 | 湖北玖天机车部件有限公司 | All-metal locknut and processing method thereof |
| CN112718334A (en) * | 2021-01-25 | 2021-04-30 | 青岛润扬环境科技有限公司 | Self-locking device for threaded connection of pressure atomizing nozzle |
| CN112718334B (en) * | 2021-01-25 | 2022-03-18 | 青岛润扬环境科技有限公司 | Self-locking device for threaded connection of pressure atomizing nozzle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |