CN201521528U - Check bolt structure - Google Patents
Check bolt structure Download PDFInfo
- Publication number
- CN201521528U CN201521528U CN200920186184XU CN200920186184U CN201521528U CN 201521528 U CN201521528 U CN 201521528U CN 200920186184X U CN200920186184X U CN 200920186184XU CN 200920186184 U CN200920186184 U CN 200920186184U CN 201521528 U CN201521528 U CN 201521528U
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- China
- Prior art keywords
- bolt
- thread
- nut
- utility
- model
- 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 - Lifetime
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- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a check bolt structure applied in the field of bolt thread connecting structure, which comprises a bolt (1), a nut (2), a bolt thread (3) and a nut thread (4). The check bolt structure is characterized in that a triangular or trapezoid thread at a bolt root (5) of the junction of the bolt thread (3) and the nut thread (4) is improved into a wedge structure (7) with inclined angle. By adopting the technical scheme of the utility model, the check bolt structure can prevent the looseness of the bolt and the nut when in vibration, thoroughly improve the uneven stress phenomenon of the bolt and the nut, and prolong the service life and improve the quality of the bolt and the nut.
Description
Technical field
The utility model relates to the bolt thread linkage structure, in particular, relates to a kind of chek bolt structure.
Background technique
The screw thread of existing standard bolt, nut generally is a triangle or trapezoidal, and this linkage structure is loosening easily when being subjected to vibrating particularly transverse vibration, and this structure is very inhomogeneous on stressed, the working life of having limited screw bolt and nut so greatly.The structural representation that is the standard thread at existing 60 ° of angles shown in Figure 1.The screw thread of existing common standard bolt, nut is a triangle or trapezoidal, the cooperation of this structure is the face contact, and because the existence of tolerance, have certain clearance at the bottom of the crest of bolt and the tooth of nut, this has just caused when being subjected to vibrating loosening easily, and this structure stress very inhomogeneous (seeing the force structure figure of Fig. 4), its first tooth stressed have accounted for whole stressed 60%-70%, this stressed working life of having limited bolt, nut greatly.
The model utility content
Technical problem to be solved in the utility model is: a kind of long service life is provided, and can prevents the chek bolt structure of bolt looseness.
For solving above technical problem, the technical solution adopted in the utility model is:
The utility model is a kind of chek bolt structure, comprises bolt, nut, and bolt thread, nut thread, the triangle of the thread root of described bolt thread and nut thread junction point or the screw thread of trapezoidal shape are improved to the sphenoid surface that has the angle of inclination.
Described bolt thread and nut thread junction point form the sphenoid surface that line is fitted.
Described sphenoid surface is set to be 20 °-50 ° angle structure between sphenoid surface surface and the bolt center line.
The best angle of the angle between described sphenoid surface surface and the bolt center line is 30 ° a structure.
Adopt the technical solution of the utility model, can obtain following beneficial effect:
Innovative point of the present utility model is the screw thread of standard thread root triangle or trapezoidal shape is improved to the sphenoid surface that has several angle, make the cooperation of the face of regular screw threads fitting surface and face become the cooperation of line, prevent screw bolt and nut loosening when being subjected to vibrating and the phenomenon of screw bolt and nut discontinuity is thoroughly improved thereby reach, improved the working life and the quality of screw bolt and nut.
Description of drawings
Below expressed content of each width of cloth accompanying drawing in this specification and the mark among the figure are made brief description:
Fig. 1 is the cross-sectional view of chek bolt structure of the present utility model;
Fig. 2 is the stressed schematic representation of the thread root sphenoid surface of chek bolt structure of the present utility model;
Fig. 3 is the standard thread schematic representation at existing 60 ° of angles;
Fig. 4 is the stressed schematic representation of existing 60 ° of accurate screw threads of footmark;
Be labeled as among the figure: 1, bolt; 2, nut; 3, bolt thread; 4, nut thread; 5, thread root; 6, bolt center line; 7, sphenoid surface.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment:
As shown in Figure 1, the utility model is a kind of chek bolt structure, comprises bolt 1, nut 2, bolt thread 3, nut thread 4, described bolt thread 3 is improved to the sphenoid surface 7 that has the angle of inclination with the triangle of the thread root 5 of nut thread 4 junction points or the screw thread of trapezoidal shape.
Described bolt thread 3 forms sphenoid surface 7 structures that line is fitted with nut thread 4 junction points.
Described sphenoid surface 7 is set to be 20 °-50 ° angle structure between sphenoid surface 7 surfaces and the bolt center line 6.
The best angle of the angle between described sphenoid surface 7 surfaces and the bolt center line 6 is 30 ° a structure.
The utility model passes through the improvement of the screw thread of double thread root 5, thereby reaches the purpose of design.
As shown in Figure 1, it is the schematic representation of chek bolt structure of the present utility model, as can be seen from Figure 1, the sphenoid surface of thread root 5 allows thread root 5 form 30 ° of sphenoid surface 7 during fabrication, this sphenoid surface 7 has been arranged, the screw-thread fit of bolt 1, nut 2 is exactly line, the face (cooperation of a line and a face, the cooperation of sphenoid surface and nut thread top line) cooperates, so just can prevent from when being subjected to vibrating to become flexible and improved the force structure (see figure 2), thereby reach the purpose in the working life of improving bolt 1, nut 2 at bolt 1, nut 2.
Innovative point of the present utility model has been to improve the bolt 1 of existing standard, the screw thread form of nut 2, allow the bolt thread 3 of bolt 1 form the sphenoid surface 7 that several angle (about 30 °) are arranged at root, thereby make the flank of thread of plain bolt 1, nut 2 cooperate the cooperation of changing into line and face with face, thereby prevented that bolt, nut are when being subjected to vibrating and take place loosening and improved stressed working life of having improved bolt, nut.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the concrete realization of the utility model is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or design of the present utility model and technological scheme are directly applied to other occasions without improving, all in protection domain of the present utility model.
Claims (4)
1. chek bolt structure, comprise bolt (1), nut (2), bolt thread (3), nut thread (4) is characterized in that: described bolt thread (3) is improved to the sphenoid surface (7) that has the angle of inclination with the triangle of the bolt root (5) of nut thread (4) junction point or the screw thread of trapezoidal shape.
2. according to the described chek bolt structure of claim 1, it is characterized in that: described bolt thread (3) forms sphenoid surface (7) structure that line is fitted with nut thread (4) junction point.
3. according to the described chek bolt structure of claim 1, it is characterized in that: described sphenoid surface (7) is set to be 20 °-50 ° angle structure between sphenoid surface (7) surface and the bolt center line (6).
4. according to the described chek bolt structure of claim 3, it is characterized in that: the best angle of the angle between described sphenoid surface (7) surface and the bolt center line (6) is 30 ° a structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920186184XU CN201521528U (en) | 2009-06-30 | 2009-06-30 | Check bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920186184XU CN201521528U (en) | 2009-06-30 | 2009-06-30 | Check bolt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521528U true CN201521528U (en) | 2010-07-07 |
Family
ID=42507704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920186184XU Expired - Lifetime CN201521528U (en) | 2009-06-30 | 2009-06-30 | Check bolt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509353A (en) * | 2016-06-14 | 2017-12-22 | 伊姆西公司 | Bar and the fixing device that is used cooperatively with frame for frame |
| CN108397463A (en) * | 2018-04-02 | 2018-08-14 | 北京理工大学 | Include the anti-loosening threaded pair and checknut part of confined planes |
-
2009
- 2009-06-30 CN CN200920186184XU patent/CN201521528U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509353A (en) * | 2016-06-14 | 2017-12-22 | 伊姆西公司 | Bar and the fixing device that is used cooperatively with frame for frame |
| US10711817B2 (en) | 2016-06-14 | 2020-07-14 | EMC IP Holding Company LLC | Rod for use in rack and holding device for use in cooperation with rack |
| CN108397463A (en) * | 2018-04-02 | 2018-08-14 | 北京理工大学 | Include the anti-loosening threaded pair and checknut part of confined planes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |