CN205423477U - Auto -lock locknut - Google Patents
Auto -lock locknut Download PDFInfo
- Publication number
- CN205423477U CN205423477U CN201620213019.9U CN201620213019U CN205423477U CN 205423477 U CN205423477 U CN 205423477U CN 201620213019 U CN201620213019 U CN 201620213019U CN 205423477 U CN205423477 U CN 205423477U
- Authority
- CN
- China
- Prior art keywords
- hole
- nut
- connecting portion
- nut body
- collet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model belongs to the technical field of the fastener technique and specifically relates to an auto -lock locknut, including the nut body and have the collet chuck of central screw through -hole, collet chuck's both ends are outer pyramis and connecting portion respectively, and connecting portion are kept away from to the main aspects in outer pyramis, have offered two at least elongated slots on the outer pyramis, and it is internal that clamping jaw that formation can the concentric contraction, collet chuck lie in the nut, the nut body when collet chuck axial displacement, the clamping jaw concentric contraction, the utility model discloses an auto -lock locknut has improved original pure screw thread connection, through mutually supporting of nut body and collet chuck, holds the bolt tightly for nut and bolted connection be safe and reliable more, has avoided the emergence in long -term vibration's the not hard up obscission of state lower nut.
Description
Technical field
This utility model relates to technical field of fastening, especially a kind of self locking anti-loose nut.
Background technology
At present, securing member is widely used and multiple industries such as vehicle, boats and ships, railway, bridge, building, and what the quality of product quality directly affected that it uses process is installed on installation.Wherein, screw bolt and nut is usually used in fixing two or more joint portion.Time in the environment that it is chronically at vibration and varying load, nut can produce loosening, easy to wear comes off, and then brings potential safety hazard.
At present, screw thread pair is modal connected mode, and spring washer is mainly installed in its locking measure additional.Use top double nut, add locked spacer, employing nylon insert nut and anchor adhesive etc., facts have proved that these measures have its limitation, as installed spring washer additional and using top double nut unsatisfactory for the electrification railway contact net bracket system anti-loosing effect being chronically under vibrational state；Preferably but its scope of application is restricted for locked spacer anti-loosing effect；Anchor adhesive then exists aging and dismantles the problems such as inconvenient.
Utility model content
The technical problems to be solved in the utility model is: during in order to solve bolts and nuts threaded engagement, when being chronically in the environment of vibration and varying load, nut can produce loosening, easy to wear come off, and then the problem bringing potential safety hazard, a kind of self locking anti-loose nut is now provided, this nut structure is simple, convenience quick for installation, locking for the fastening of electrification contact network upper connector, reduce or avoid in use securing member that the phenomenon of loose or dislocation occurs, the problem low to solve existing connected mode reliability.
This utility model solves its technical problem and be the technical scheme is that a kind of self locking anti-loose nut, including nut body and the collet with center tapped through hole, the two ends of described collet are respectively external taper and connecting portion, holding away from connecting portion greatly of described external taper, at least two elongated slots are offered on described external taper, formation can the jaw of concentric contraction, described collet is positioned at described nut body, described nut body towards collet move axially time, described jaw concentric contraction.
In this programme when nut body moves axially on bolt towards collet, nut body produces compressing to the external taper of collet, makes jaw uniform shrinkage be held tightly by the screw rod on bolt, and the screw thread on jaw is adjacent to the screw thread on bolt.
Further, described nut body offers the connecting hole that the internal taper hole matched with external taper matches with connecting portion and the screwed hole matched with tapped through hole the most successively, described connecting portion is in connecting hole, described external taper is positioned at internal taper hole, and the axial length of described connecting portion is less than the axial length of connecting hole.
Further, the outer peripheral face of described nut body offering the pin-and-hole connected with connecting hole, the connecting portion of described collet offers the chute matched with pin-and-hole, be provided with steady pin in described pin-and-hole, the front end of described steady pin is positioned at described chute.
Preferably, described elongated slot has three.
The beneficial effects of the utility model are: self locking anti-loose nut of the present utility model improves original pure thread connecting mode, by cooperating of nut body and collet, hold bolt tightly, nut is connected more safe and reliable with bolt, it is to avoid in the generation of the state lower nut loose or dislocation phenomenon of Long-term Vibration.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the top view of collet in this utility model self locking anti-loose nut；
Fig. 2 be in Fig. 1 A-A to sectional view；
Fig. 3 is nut body end view in this utility model self locking anti-loose nut；
Fig. 4 is nut body sectional view in this utility model self locking anti-loose nut；
Fig. 5 is that this utility model self locking anti-loose nut uses view.
In figure: 1, nut body, 101, internal taper hole, 102, connecting hole, 103, screwed hole, 105, pin-and-hole, 2, collet, 201, tapped through hole, 202, external taper, 203, connecting portion, 204, elongated slot, 205, jaw, 206, chute, 3, steady pin, 4, bolt, 401, screw rod.
The axial length of L: connecting portion；
The axial length of L1: connecting hole.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of self locking anti-loose nut, including nut body 1 and the collet 2 with center tapped through hole 201, the two ends of described collet 2 are respectively external taper 202 and connecting portion 203, holding away from connecting portion 203 greatly of described external taper 202, three elongated slots 204 are offered on described external taper 202, formation can the jaw 205 of concentric contraction, described collet 2 is positioned at described nut body 1, described nut body 1 towards collet 2 move axially time, described jaw 205 concentric contraction.
As shown in Figures 3 and 4, described nut body 1 offers the connecting hole 102 that the internal taper hole 101 matched with external taper 202 matches with connecting portion 203 and the screwed hole 103 matched with tapped through hole 201 the most successively, described connecting portion 203 is positioned at connecting hole 102, described external taper 202 is positioned at internal taper hole 101, and the axial length L of described connecting portion 203 is less than the axial length L 1 of connecting hole 102.
As shown in Figure 5, the pin-and-hole 105 connected with connecting hole 102 is offered on the outer peripheral face of described nut body 1, the chute 206 matched with pin-and-hole 105 is offered on the connecting portion 203 of described collet 2, being provided with steady pin 3 in described pin-and-hole 105, the front end of described steady pin 3 is positioned at described chute 206.
When specifically applying:
As shown in Figure 5, first collet 2 is loaded in nut body 1, pin-and-hole 105 is alignd with chute 206, steady pin 3 inserted in pin-and-hole 105 simultaneously and contact with chute 206, now rotating nut body 1 can drive collet 2 to rotate simultaneously, nut body 1 and collet 2 are spun on the screw rod 401 of bolt 4 until tentatively screwing, then steady pin 3 is taken off, then continue to tightening nut body 1, now nut body 1 can be towards the axial displacement of collet 2, nut body 1 produces compressing to the external taper 202 of collet 2 immediately, jaw 205 uniform shrinkage is made to be held tightly by the screw rod 401 on bolt 4, screw thread on jaw 205 is adjacent to the screw thread on bolt 4, make nut reliable with bolt 4 attachment security.
Above-mentioned is enlightenment according to desirable embodiment of the present utility model, and by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (4)
1. a self locking anti-loose nut, it is characterized in that: include nut body (1) and there is the collet (2) of center tapped through hole (201), the two ends of described collet (2) are respectively external taper (202) and connecting portion (203), holding away from connecting portion (203) greatly of described external taper (202), at least two elongated slots (204) are offered on described external taper (202), formation can the jaw (205) of concentric contraction, described collet (2) is positioned at described nut body (1), described nut body (1) towards collet (2) move axially time, described jaw (205) concentric contraction.
Self locking anti-loose nut the most according to claim 1, it is characterized in that: described nut body (1) offers the internal taper hole (101) matched with external taper (202) the most successively, the connecting hole (102) matched with connecting portion (203) and the screwed hole (103) matched with tapped through hole (201), described connecting portion (203) is positioned at connecting hole (102), described external taper (202) is positioned at internal taper hole (101), the axial length L of described connecting portion (203) is less than the axial length L 1 of connecting hole (102).
Self locking anti-loose nut the most according to claim 2, it is characterized in that: on the outer peripheral face of described nut body (1), offer the pin-and-hole (105) connected with connecting hole (102), the chute (206) matched with pin-and-hole (105) is offered on the connecting portion (203) of described collet (2), being provided with steady pin (3) in described pin-and-hole (105), the front end of described steady pin (3) is positioned at described chute (206).
Self locking anti-loose nut the most according to claim 1, it is characterised in that: described elongated slot (204) has three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213019.9U CN205423477U (en) | 2016-03-18 | 2016-03-18 | Auto -lock locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213019.9U CN205423477U (en) | 2016-03-18 | 2016-03-18 | Auto -lock locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423477U true CN205423477U (en) | 2016-08-03 |
Family
ID=56519453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213019.9U Active CN205423477U (en) | 2016-03-18 | 2016-03-18 | Auto -lock locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423477U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701571A (en) * | 2017-10-30 | 2018-02-16 | 安徽凯瑞汽配制造有限公司 | A kind of non-return type bolt assembly |
| CN114001067A (en) * | 2021-11-19 | 2022-02-01 | 徐州徐工液压件有限公司 | Hexagonal nut locking device for adjustable hydraulic cylinder |
| CN114688135A (en) * | 2022-04-19 | 2022-07-01 | 尹丹凤 | Interlocking spring clip locknut |
-
2016
- 2016-03-18 CN CN201620213019.9U patent/CN205423477U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701571A (en) * | 2017-10-30 | 2018-02-16 | 安徽凯瑞汽配制造有限公司 | A kind of non-return type bolt assembly |
| CN107701571B (en) * | 2017-10-30 | 2023-11-07 | 安徽凯瑞汽配制造有限公司 | Backstop formula bolt assembly |
| CN114001067A (en) * | 2021-11-19 | 2022-02-01 | 徐州徐工液压件有限公司 | Hexagonal nut locking device for adjustable hydraulic cylinder |
| CN114001067B (en) * | 2021-11-19 | 2024-05-14 | 徐州徐工液压件有限公司 | Hexagonal nut locking device for adjustable hydraulic cylinder |
| CN114688135A (en) * | 2022-04-19 | 2022-07-01 | 尹丹凤 | Interlocking spring clip locknut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205423477U (en) | Auto -lock locknut | |
| CN105937538A (en) | Structure of locknut and locking adjusting method for locknut | |
| CN205715164U (en) | Self-locking type check bolt assembly | |
| CN201166042Y (en) | Connecting bolt utilizing inverse screw thread to prevent looseness | |
| CN204828244U (en) | Locknut | |
| CN202182098U (en) | Locknut special for contact networks in railways | |
| CN102927111A (en) | Locking structure of thread connecting pair | |
| CN206092662U (en) | Elastic cone wedging formula locknut | |
| CN202431724U (en) | Anti-dismounting nut | |
| CN209510882U (en) | Antivibration anti-loose fastener | |
| CN205298218U (en) | Pressure formula locknut device is spared to elasticity | |
| CN204646944U (en) | Hexagonal cone pad 3 locking riveting nuts | |
| CN105041830A (en) | Locknut | |
| CN205745662U (en) | A kind of combination pipe clamp with auto-lock function | |
| CN201714797U (en) | Hexagonal half-thread bolt device | |
| CN211820309U (en) | Anti-loosening bolt | |
| CN205744833U (en) | A kind of structure of stop nut | |
| CN204436987U (en) | A kind of dismountable expansion bolt | |
| CN203548520U (en) | Fast-tapping and loosening-prevention stud | |
| CN209557462U (en) | A kind of backstop lock nut, vehicle, generating equipment and track | |
| CN203488524U (en) | Nut | |
| CN207246198U (en) | Nut retaining locking device | |
| CN205780178U (en) | A kind of high-strength double end bolt connects assembly | |
| CN205781404U (en) | A kind of anti-loosening pipe clamp that is locked | |
| CN104747654A (en) | Rope cappel with strong tensile resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |