CN201301858Y - Device for preventing free rotation of bolt and nut - Google Patents
Device for preventing free rotation of bolt and nut Download PDFInfo
- Publication number
- CN201301858Y CN201301858Y CNU2008202153586U CN200820215358U CN201301858Y CN 201301858 Y CN201301858 Y CN 201301858Y CN U2008202153586 U CNU2008202153586 U CN U2008202153586U CN 200820215358 U CN200820215358 U CN 200820215358U CN 201301858 Y CN201301858 Y CN 201301858Y
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- CN
- China
- Prior art keywords
- bolt
- nut
- boss
- groove
- fastening piece
- 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
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model discloses a device for preventing free rotation of bolts and nuts, wherein a bolt (1) is provided with a boss (5) at the face contacted with a first fixture (2); the first fixture (2) is provided with a groove fit with the boss (5), at the face contacted with the bolt (1); the sections of the boss (5) and the groove (6) are square; the boss (5) and the groove (6) have open sections along the axis of the bolt (1). The device of special structure for preventing free rotation of bolt and nut can effectively confirm the free rotation of bolt and nut via the added boss, and can save labor force and material force, with simple structure and easy application.
Description
Technical field
The utility model relates to a kind of bolt and nut that prevents and issues the device of being conigenous by rotating in the situation of tightening or dismantling.
Background technique
Generally speaking, with bolt, nut two parts or pipe fitting are fixed into one, need could be with its dismounting when tearing turned flange bolt, nut at the scene open with two spanners, one of them spanner is used to tight a bolt or nut, a spanner is used to prevent the nut or the bolt rotation in the same way thereupon of the other end, and two spanners need two people respectively holding up sometimes.Therefore, tool using is many when dismounting flange bolt, nut at present, and operator are many, especially when bolt or nut were in specific position, operator's health was difficult to put in place, the bad placement of spanner, cause very inconvenience of dismounting, increased labor intensity and operating time.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of device that prevents that bolt and nut from freely rotating at problems of the prior art, its objective is to guarantee that bolt and nut can not rotate in the same way in the process of tightening or dismantling.
The technical solution of the utility model is this a kind of device that prevents that bolt and nut from freely rotating, comprise bolt, nut, first fastening piece and second fastening piece, the face that bolt contacts with first fastening piece is provided with boss or groove, and the face that first fastening piece contacts with bolt is provided with groove or the boss that matches with boss or groove.
Also can be: the face that described nut contacts with second fastening piece be provided with boss or groove, and the face that second fastening piece contacts with nut is provided with groove or the boss that matches with boss or groove.
The device that bolt and nut freely rotates that prevents with above-mentioned special construction has the following advantages:
1, the boss by increasing has effectively guaranteed relatively rotating of bolt and nut, has saved human and material resources to a great extent.
2, simple in structure, be convenient to realize.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of first kind of technological scheme of the utility model.
Fig. 2 is the structural representation of second kind of technological scheme of the utility model.
In Fig. 1～2,1: bolt; 2: the first fastening pieces; 3: nut; 4: the second fastening pieces.
Embodiment
Fig. 1 is the structural representation of first kind of technological scheme of the utility model.As shown in Figure 1, bolt 1 is provided with boss 5 with the face that first fastening piece 2 contacts, the face that first fastening piece 2 contacts with bolt 1 is provided with the groove 6 that matches with boss 5, the cross section of boss 5 and groove 6 is square, along the axial direction of described bolt 1, boss 5 and groove 6 are one section that does not seal.
Also can be: bolt 1 be provided with groove 6 with the face that first fastening piece 2 contacts, the face that first fastening piece 2 contacts with bolt 1 is provided with the boss 5 that matches with groove 6, the cross section of boss 5 and groove 6 can also be any suitable shape such as semicircle or trapezoidal, along the axial direction of described bolt 1, the shape of boss 5 and groove 6 can also be any suitable shape such as circular or square of sealing.
Fig. 2 is the structural representation of second kind of technological scheme of the utility model.As shown in Figure 2, nut 3 is provided with boss 5 with the face that second fastening piece 4 contacts, the face that second fastening piece 4 contacts with nut 3 is provided with the groove 6 that matches with boss 5, the cross section of boss 5 and groove 6 is square, along the axial direction of described bolt 1, boss 5 and groove 6 are one section that does not seal.
Also can be: nut 3 be provided with groove 6 with the face that second fastening piece 4 contacts, the face that second fastening piece 4 contacts with nut 3 is provided with the boss 5 that matches with groove 6, the cross section of boss 5 and groove 6 can also be any suitable shape such as semicircle or trapezoidal, along the axial direction of described nut 3, the shape of boss 5 and groove 6 can also be any suitable shape such as circular or square of sealing.
Concrete working procedure is: pass first fastening piece 2 and second fastening piece 4 with bolt 1, and fix by nut 3, the groove 6 on contacted of bolt 1 or nut 3 and the fastening piece is matched with boss 5.When tightening or dismantle, bolt 1 or nut 3 and fastening piece reach bolt 1 and can not rotate in the same way diametrically with nut 3 because boss 5 can not rotate with cooperating of groove 6, have saved human and material resources, reduce labor intensity, and guaranteed the quality of dismounting.
Claims (8)
1. prevent the device that bolt and nut freely rotates, comprise bolt, nut, first fastening piece and second fastening piece, it is characterized in that: the face that described bolt (1) contacts with first fastening piece (2) is provided with boss (5) or groove (6), and the face that first fastening piece (2) contacts with bolt (1) is provided with groove (6) or the boss (5) that matches with boss (5) or groove (6).
2. the device that prevents that bolt and nut from freely rotating according to claim 1 is characterized in that: the cross section of described boss (5) and groove (6) is square, semicircle or trapezoidal.
3. the device that prevents that bolt and nut from freely rotating according to claim 2 is characterized in that: along the axial direction of described bolt (1), boss (5) and groove (6) are what do not seal, and are at least one section.
4. the device that prevents that bolt and nut from freely rotating according to claim 2 is characterized in that: along the axial direction of described bolt (1), and the circle that is shaped as sealing of boss (5) and groove (6) or square.
5. prevent the device that bolt and nut freely rotates, comprise bolt, nut, first fastening piece and second fastening piece, it is characterized in that: the face that described nut (3) contacts with second fastening piece (4) is provided with boss (5) or groove (6), and the face that second fastening piece (4) contacts with nut (3) is provided with groove (6) or the boss (5) that matches with boss (5) or groove (6).
6. the device that prevents that bolt and nut from freely rotating according to claim 5 is characterized in that: the cross section of described boss (5) and groove (6) is square, semicircle or trapezoidal.
7. the device that prevents that bolt and nut from freely rotating according to claim 6 is characterized in that: along the axial direction of described nut (3), boss (5) and groove (6) are what do not seal, and are at least one section.
8. the device that prevents that bolt and nut from freely rotating according to claim 6 is characterized in that: along the axial direction of described nut (3), and the circle that is shaped as sealing of boss (5) and groove (6) or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202153586U CN201301858Y (en) | 2008-11-27 | 2008-11-27 | Device for preventing free rotation of bolt and nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202153586U CN201301858Y (en) | 2008-11-27 | 2008-11-27 | Device for preventing free rotation of bolt and nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301858Y true CN201301858Y (en) | 2009-09-02 |
Family
ID=41085483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202153586U Expired - Fee Related CN201301858Y (en) | 2008-11-27 | 2008-11-27 | Device for preventing free rotation of bolt and nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301858Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035956A (en) * | 2017-12-13 | 2018-05-15 | 柳州上丰自动化设备有限公司 | A kind of Anti-extrusion butterfly bolt |
| CN108357534A (en) * | 2018-04-20 | 2018-08-03 | 太仓兴锋脚轮有限公司 | A kind of lightweight turnover wooden handcart |
| CN113108635A (en) * | 2021-04-26 | 2021-07-13 | 奥斯博格通风设备（昆山）有限公司 | Balance adjusting mechanism of runner |
-
2008
- 2008-11-27 CN CNU2008202153586U patent/CN201301858Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035956A (en) * | 2017-12-13 | 2018-05-15 | 柳州上丰自动化设备有限公司 | A kind of Anti-extrusion butterfly bolt |
| CN108357534A (en) * | 2018-04-20 | 2018-08-03 | 太仓兴锋脚轮有限公司 | A kind of lightweight turnover wooden handcart |
| CN113108635A (en) * | 2021-04-26 | 2021-07-13 | 奥斯博格通风设备（昆山）有限公司 | Balance adjusting mechanism of runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20131127 |