CN205298217U - Nut - Google Patents
Nut Download PDFInfo
- Publication number
- CN205298217U CN205298217U CN201620004247.5U CN201620004247U CN205298217U CN 205298217 U CN205298217 U CN 205298217U CN 201620004247 U CN201620004247 U CN 201620004247U CN 205298217 U CN205298217 U CN 205298217U
- Authority
- CN
- China
- Prior art keywords
- nut
- female thread
- arc
- top nut
- curved surface
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a nut compares with prior art, when using, and will the utility model discloses on the nut screw in connecting bolt, the fixed back of screwing is gone up nut again and is screwed, owing to drive and go up nut and move down, and facial planes in close contact with in outside sunken curved surface of the arc of nut lower part and the lower nut messengers on for the arc shoulder of the sunken curved surface both sides of arc produces the little elastic deformation behind the inflation, make down nut, go up nut and lock each other. Can satisfy the requirement that EMUs nut connects back locking, and simple structure, production efficiency are high, have guaranteed the steady of the in -process that traveles, the use of the various EMUs train running in -processs of specially adapted.
Description
Technical field
This utility model relates to the EMUs technical field of high-speed railway, particularly relates to a kind of nut.
Background technology
At present, on motor train unit bogie, nut for connecting each parts is one of indispensable assembling parts, and in nut use procedure, the nut of small volume corresponds to the bigger nut of volume and installs tightening, and is easier to fix. The bigger nut of volume installs tightening, can occur to loosen phenomenon after EMUs run a period of time, need repair and maintenance personnel's running check nut fastening situation, fairly time consuming effort, thus need a kind of novel, install the nut that can carry out locking further suitable in the bigger nut of volume tightening. Not only a kind of can be used for connecting, simultaneously but also there is the nut of locking function accordingly, it would be desirable to invent, just be particularly important.
Summary of the invention
Not only in view of this, goal of the invention of the present utility model is for the problems referred to above, it is provided that a kind of nut, may be used for connecting, simultaneously but also have the nut of locking function, and simple in construction, production efficiency are high.
For achieving the above object, this utility model realizes by the following technical solutions:
A kind of nut, including female thread in female thread, top nut under lower nut, top nut, gap, arc-shaped recess curved surface, lower nut external screw thread, lower nut female thread, top nut.
Described lower nut profile be inverted T-shape arrange and upper outside be provided with lower nut external screw thread, be internally provided with the lower nut female thread into through hole, described top nut internal step ladder type is provided with under top nut in female thread, top nut female thread, described arc-shaped recess curved surface is arranged on the bottom surface of top nut, described lower nut external screw thread is all identical with the parameters of female thread under top nut, and described lower nut female thread is all identical with the parameters of female thread in top nut.
Described lower nut, top nut are fixed together composition this utility model by lower nut external screw thread after being screwed with female thread under top nut, and lower nut female thread after screwing and leave gap between female thread in top nut. Described gap axial line distance in the vertical direction is sized larger than arc-shaped recess curved surface axial line distance size 2mm in the vertical direction.
Beneficial effect: the disclosed a kind of nut of this utility model, compared with prior art, in use, this utility model nut is screwed on connecting bolt, after being tightened, then carries out top nut and screw, owing to driving top nut to move down, make middle plane close contact outside the arc-shaped recess curved surface of top nut bottom and lower nut so that the arc shoulder of arc-shaped recess curved surface both sides produces the micro-elasticity deformation after expanding so that lower nut, top nut are locked mutually.The requirement of locking after EMUs nut connects can be met, and simple in construction, production efficiency are high, it is ensured that steady in driving process, be particularly well-suited to the use in various motor train unit train driving process.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is left view of the present utility model;
Fig. 3 is lower nut front view of the present utility model;
Fig. 4 is top nut front view of the present utility model;
Fig. 5 is top nut left view of the present utility model;
In figure: female thread in female thread, 8-top nut under 1-lower nut, 2-top nut, 3-gap, 4-arc-shaped recess curved surface, 5-lower nut external screw thread, 6-lower nut female thread, 7-top nut.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model is not limited to following embodiment.
As Figure 1-Figure 5, described a kind of nut, including female thread 8 in female thread 7, top nut under lower nut 1, top nut 2, gap 3, arc-shaped recess curved surface 4, lower nut external screw thread 5, lower nut female thread 6, top nut.
Described lower nut 1 profile be inverted T-shape arrange and upper outside be provided with lower nut external screw thread 5, be internally provided with the lower nut female thread 6 into through hole, described top nut 2 internal step ladder type is provided with under top nut in female thread 7, top nut female thread 8, described arc-shaped recess curved surface 4 is arranged on the bottom surface of top nut 2, described lower nut external screw thread 5 is all identical with the parameters of female thread 7 under top nut, and described lower nut female thread 6 is all identical with the parameters of female thread 8 in top nut.
Described lower nut 1, top nut 2 are fixed together composition this utility model by lower nut external screw thread 5 after being screwed with female thread 7 under top nut, and lower nut female thread 6 after screwing and leave gap 3 between female thread 8 in top nut. Described gap 3 axial line distance in the vertical direction is sized larger than arc-shaped recess curved surface 4 axial line distance size 2mm in the vertical direction.
Embodiment:
This utility model is in use, first after the parts needing to connect being installed, this utility model nut is screwed on connecting bolt, after being tightened, then carry out top nut 2 and screw, due to screwing of top nut 2, top nut 2 is driven to move down, make middle plane close contact outside the arc-shaped recess curved surface 4 of top nut 2 bottom and lower nut 1 so that the arc shoulder of arc-shaped recess curved surface 4 both sides produces the micro-elasticity deformation after expanding so that lower nut 1, top nut 2 are locked mutually.
Above-mentioned embodiment is only for illustrating technical characterstic of the present utility model and design; its objective is to be in that to allow the technical staff being familiar with this area technique will appreciate that content of the present utility model and to be carried out; protection domain of the present utility model can not be limited with this; all equivalences made according to spirit of the present utility model and embodiment change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a nut, including female thread in female thread, top nut under lower nut, top nut, gap, arc-shaped recess curved surface, lower nut external screw thread, lower nut female thread, top nut, it is characterized in that: described lower nut, top nut are fixed together after being screwed with female thread under top nut by lower nut external screw thread, and lower nut female thread after screwing and leave gap between female thread in top nut.
2. a kind of nut according to claim 1, it is characterised in that: described lower nut profile be inverted T-shape setting and upper outside is provided with lower nut external screw thread, is internally provided with the lower nut female thread into through hole.
3. a kind of nut according to claim 1, it is characterised in that: described top nut internal step ladder type is provided with under top nut in female thread, top nut female thread, and described arc-shaped recess curved surface is arranged on the bottom surface of top nut.
4. a kind of nut according to claim 1, it is characterised in that: described lower nut external screw thread is all identical with the parameters of female thread under top nut, and described lower nut female thread is all identical with the parameters of female thread in top nut.
5. a kind of nut according to claim 1, it is characterised in that: described gap axial line distance in the vertical direction is sized larger than arc-shaped recess curved surface axial line distance size 2mm in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620004247.5U CN205298217U (en) | 2016-01-06 | 2016-01-06 | Nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620004247.5U CN205298217U (en) | 2016-01-06 | 2016-01-06 | Nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298217U true CN205298217U (en) | 2016-06-08 |
Family
ID=56484576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620004247.5U Expired - Fee Related CN205298217U (en) | 2016-01-06 | 2016-01-06 | Nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298217U (en) |
-
2016
- 2016-01-06 CN CN201620004247.5U patent/CN205298217U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204591925U (en) | A kind of bolt of easy disassembly | |
| CN201723555U (en) | Lock bolt | |
| CN109083910A (en) | A kind of antirust tapping screw | |
| CN204186747U (en) | A kind of adjusting nut | |
| CN205298217U (en) | Nut | |
| CN203452141U (en) | Water pipe connector installation structure | |
| CN201723557U (en) | Riveted connecting screw component with lock ring | |
| CN204387069U (en) | Rolling mill universal spade half coupling connecting bolt anti-loose structure | |
| CN206175419U (en) | Unilateral bolt fastener | |
| CN104006054A (en) | Multifunctional u-shaped adjusting bolt | |
| CN203580945U (en) | Fixing device of locomotive ground rod | |
| CN209456885U (en) | A kind of rail structure | |
| CN209262013U (en) | Anti-loosening nut | |
| CN209083767U (en) | A kind of antirust tapping screw | |
| CN203362779U (en) | Anti-loose pressure riveting screw | |
| CN202441193U (en) | General adjustable column of shield door of subway platform | |
| CN203726384U (en) | Air compressor pump gear tightening tool with reaction rod | |
| CN208272573U (en) | A kind of right angle hanging plate Anti-breaking device | |
| CN203906490U (en) | Multifunctional u-shaped adjusting bolt | |
| CN207669204U (en) | A kind of anti-theft nut allen wrench | |
| CN206495507U (en) | A kind of good building template fastener of clamping effect | |
| CN205908010U (en) | Curtain wall construction scaffold frame is wall spare device even | |
| CN203067463U (en) | Outer hexagon bolt with double bolt heads | |
| CN209539762U (en) | A kind of anti-theft screw | |
| CN204164133U (en) | A kind of special hexagonal socket nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170106 |