CN201714780U - Dodecagonal cinquefoil half thread bolt device with pads - Google Patents
Dodecagonal cinquefoil half thread bolt device with pads Download PDFInfo
- Publication number
- CN201714780U CN201714780U CN201020175038XU CN201020175038U CN201714780U CN 201714780 U CN201714780 U CN 201714780U CN 201020175038X U CN201020175038X U CN 201020175038XU CN 201020175038 U CN201020175038 U CN 201020175038U CN 201714780 U CN201714780 U CN 201714780U
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- China
- Prior art keywords
- nut
- bolt
- screw
- screw rod
- jiaos
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- 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
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Abstract
A dodecagonal cinquefoil half thread bolt device with pads comprises a bolt and a nut which cooperates with threads of the bolt. The bolt is provided with a bolt head and a screw which are integrated into one piece. The device also comprises at least one anti-loosing screw. The bolt head and the nut are both a prism, the cross section of which is of a dodecagonal cinquefoil shape. Inner ends of the bolt head and the nut are provided with an annular pad body which is integrated with the inner ends into one piece. The axial length of the threads of the bolt is at most equal to two thirds of the length of the screw. The outer periphery of the screw is provided with a positioning slot which extends along the axial direction and is used for positioning the anti-loosing screw. The size of the positioning slot matches with that of the anti-loosing screw. The sidewall of the nut is provided with a positioning thread hole which penetrates along the radial direction and matches with threads of the anti-loosing screw. The bolt device enables to conduct the axial spacing of the nut with good anti-loosing effect.
Description
Technical field
The utility model relates to technical field of fastening, particularly a kind of 12 jiaos of plum blossoms band pad partial thread bolt device.
Background technique
Bolt device is used widely as fastening piece, especially is applied to being connected and fixed of machinery.In order to allow equipment well connect, when fixing bolt, need consider to prevent that its generation is loosening.The common method that prevents bolt looseness generally is that the mode that adopts fasteners such as elastic washer, toothed washer or shell fragment to compress realizes, but in some special mechanical occasions, the bolt device that uses on the cantilever arrangement as crane, its vibration frequency is higher, vibration amplitude is big and bear certain lateral load, if can not prevent effectively that nut and screw rod from producing relative rotation, cantilever equipment can be because of the nut loosening of bolt device, come off and cause damage, has certain potential safety hazard.
The model utility content
Technical problem to be solved in the utility model is: providing a kind of can carry out 12 jiaos of good plum blossoms band pad partial thread bolt devices of axial limiting, anti-loosing effect to nut.
The technical scheme in the invention for solving the above technical problem is: a kind of 12 jiaos of plum blossoms band pad partial thread bolt device, comprise the bolt and the nut of screw-thread fit with it, and described bolt is provided with integrated bolt head and screw rod; It also comprises at least one jam nut, described bolt head and nut are the prism that cross section is 12 jiaos of plum blossom shapes, and the inner of described bolt head and nut is equipped with the clout body of integrated ring with it, the axial length of the screw thread of described bolt equal at the most screw rod length 2/3rds; The outer peripheral surface of described screw rod is provided with the locating slot that extends vertically, be used for the jam nut location, the size of described locating slot and the size of described jam nut match, the sidewall of described nut be provided with radially run through and with the positioning spiro pit of described jam nut screw-thread fit.
Compared with prior art, advantage of the present utility model is: the outer peripheral surface of the bolt shank of these 12 jiaos of plum blossom band pad partial thread bolt devices is provided with the locating slot that extends vertically, be used for the screw location, radially be provided with the tapped hole that cooperates with screw thread on the outer peripheral surface of nut, during use, nut is screwed on screw rod, determined the mounting point, then backing-up screw is screwed in the positioning spiro pit on nut, and jam nut is butted in the locating slot, is positioned by locating slot.Like this, though nut the vibration and lateral load under, jam nut also can carry out axial limiting to nut, thereby realizes the purpose of locking anticreep, its anti-loosing effect is better.
The quantity of described jam nut, locating slot and positioning spiro pit is two; The quantity of described jam nut, locating slot and positioning spiro pit is two; Described two locating slots are symmetricly set on the outer peripheral surface of screw rod vertically; Described two positioning spiro pits are symmetricly set on the sidewall of nut along axis.Like this, can be good at realizing axial limiting to nut, and stressed evenly, big influence can not arranged to the intensity of bolt.
Described locating slot is an opening slot, and described opening end is located at the end of screw rod away from bolt head.Like this, the processing of locating slot is convenient.
Description of drawings
The structural representation of 12 jiaos of plum blossom bands of Fig. 1 the utility model pad partial thread bolt device.
The left view of the bolt of 12 jiaos of plum blossom bands of Fig. 2 the utility model pad partial thread bolt device.
The sectional view of the nut of 12 jiaos of plum blossom bands of Fig. 3 the utility model pad partial thread bolt device.
Among Fig. 1-3: 1 nut, 1.1 positioning spiro pits, 2 bolts, 2.1 screw rods, 2.2.1 locating slot, 2.2 bolt heads, 3 jam nuts, 4 clout bodies.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
As Figure 1-3, a kind of 12 jiaos of plum blossoms band pad partial thread bolt device comprises the bolt 2 and the nut 1 of screw-thread fit with it, and described bolt 2 is provided with integrated bolt head 2.2 and screw rod 2.1; It also comprises two jam nuts 3, described bolt head 2.2 and nut 1 are the prism that cross section is 12 jiaos of plum blossom shapes, and the inner of described bolt head 2.2 and nut 1 is equipped with the clout body 4 of integrated ring with it, the axial length of the screw thread of described bolt 2 equal screw rod 2.1 length 2/3rds; Be arranged with the locating slot 2.2.1 that extends vertically, be used for jam nut 3 location on the outer peripheral surface of described screw rod 2.1, the size of the size of described locating slot 2.2.1 and described jam nut 3 matches, the sidewall of described nut 1 be provided with radially run through and with the positioning spiro pit 1.1 of described jam nut 3 screw-thread fit.Described nut 1 screws on the screw rod 2.1 of described bolt 2, and described jam nut 3 screws in positioning spiro pit 1.1, and described jam nut 3 is butted in the locating slot 2.2.1.
In this example, described locating slot 2.2.1 is an opening slot, and described opening end is located at the end of screw rod 2.1 away from bolt head 2.2.And the length of described locating slot 2.2.1 equals the axial length of the screw thread of bolt 2.
Below only be described, but can not be interpreted as it is restriction claim with regard to most preferred embodiment of the present utility model.The utility model not only is confined to above embodiment, and its concrete structure allows variation, as: the quantity of jam nut 3 can be 1 or 4; Deng.All various variations of being done in the protection domain of the utility model independent claims are all in the utility model protection domain.
Claims (3)
1. 12 jiaos of plum blossoms band pad partial thread bolt device comprises bolt (2) and the nut of screw-thread fit (1) with it, and described bolt (2) is provided with integrated bolt head (2.2) and screw rod (2.1); It is characterized in that: it also comprises at least one jam nut (3), described bolt head (2.2) and nut (1) are the prism that cross section is 12 jiaos of plum blossom shapes, and the inner of described bolt head (2.2) and nut (1) is equipped with the clout body of integrated ring (4) with it, the axial length of the screw thread of described bolt (2) equal at the most screw rod (2.1) length 2/3rds; The outer peripheral surface of described screw rod (2.1) is provided with the locating slot (2.2.1) that extends vertically, be used for jam nut (3) location, the size of the size of described locating slot (2.2.1) and described jam nut (3) matches, the sidewall of described nut (1) be provided with radially run through and with the positioning spiro pit (1.1) of described jam nut (3) screw-thread fit.
2. 12 jiaos of plum blossoms band pad partial thread bolt device according to claim 1, it is characterized in that: the quantity of described jam nut (3), locating slot (2.2.1) and positioning spiro pit (1.1) is two; Described two locating slots (2.2.1) are symmetricly set on the outer peripheral surface of screw rod (2.1) vertically; Described two positioning spiro pits (1.1) are symmetricly set on the sidewall of nut (1) along axis.
3. 12 jiaos of plum blossoms band pad partial thread bolt device according to claim 1, it is characterized in that: described locating slot (2.2.1) is an opening slot, and described opening end is located at the end of screw rod (2.1) away from bolt head (2.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020175038XU CN201714780U (en) | 2010-04-26 | 2010-04-26 | Dodecagonal cinquefoil half thread bolt device with pads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020175038XU CN201714780U (en) | 2010-04-26 | 2010-04-26 | Dodecagonal cinquefoil half thread bolt device with pads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714780U true CN201714780U (en) | 2011-01-19 |
Family
ID=43460776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020175038XU Expired - Fee Related CN201714780U (en) | 2010-04-26 | 2010-04-26 | Dodecagonal cinquefoil half thread bolt device with pads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488191A (en) * | 2018-06-27 | 2018-09-04 | 浙江洪扬汽车零部件有限公司 | A kind of locking cross-bore nut |
-
2010
- 2010-04-26 CN CN201020175038XU patent/CN201714780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488191A (en) * | 2018-06-27 | 2018-09-04 | 浙江洪扬汽车零部件有限公司 | A kind of locking cross-bore nut |
| CN108488191B (en) * | 2018-06-27 | 2024-02-06 | 浙江洪扬汽车零部件有限公司 | Anti-loose transverse hole nut |
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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: 20110119 Termination date: 20110426 |