CN203627487U - Toothed bolt prevented from being bitten tightly - Google Patents
Toothed bolt prevented from being bitten tightly Download PDFInfo
- Publication number
- CN203627487U CN203627487U CN201320833211.4U CN201320833211U CN203627487U CN 203627487 U CN203627487 U CN 203627487U CN 201320833211 U CN201320833211 U CN 201320833211U CN 203627487 U CN203627487 U CN 203627487U
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- CN
- China
- Prior art keywords
- screw
- bolt
- thread
- guide rod
- rod
- 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
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Abstract
The utility model relates to a toothed bolt prevented from being bitten tightly. The toothed bolt comprises a bolt head, a screw and a thread screwing part. The end face of one side, close to the screw, of the bolt head is provided with a flange face, the flange face is provided with a toothed ripple groove hunching towards the screw, and the screw penetrates through the toothed ripple groove. One end of the thread screwing part is provided with a guiding rod which is provided with a guiding rod thread screwing part with the direction opposite to that of a thread structure of a screw thread ridge. By means of the additionally arranged toothed ripple groove, certain tension force can be kept between two parts to be connected all the time, the connecting stability between the two parts to be connected is guaranteed, a female thread member cannot be screwed into the bolt when the bolt inclines and when the bolt is unsuitable, and the purpose of preventing the bolt from being bitten tightly and clamped is achieved.
Description
Technical field
The utility model relates to fastener areas, particularly a kind of anti-band tooth bolt of killing.
Background technique
Bolt is by head and a screw rod class fastening piece dimerous, need coordinate with nut, for being fastenedly connected two parts with through hole.This Connecting format claims bolt to connect.As nut is screwed off from bolt, can make again these two parts separately, be to belong to removably connect therefore bolt connects.
Application number is that 201220343149.6 Chinese utility model patent discloses a kind of bolt arrangement, this bolt arrangement comprises screw rod and is located at the nut of the regular polygon of screw rod one end, be provided with positioning rod at the screw rod the other end, the diameter of this positioning rod is less than the diameter of screw rod, and positioning rod length is also less than spiro rod length.This bolt arrangement is established positioning rod on screw rod, while making clamping bolt, positioning rod is inserted in screw and located, just can be fastening easily, needn't worry screw rod stripped thread and again to screw, but due to locking parts not being set, make two to be connected between part and cannot to keep certain tension force, two to be connected connective stability between part poor.If bolt tilts larger with respect to box thread member simultaneously, bolt may its attitude suitably not guided in the time screwing in the box thread portion of box thread member, that is to say, bolt keeps tilting, may in the time screwing in box thread member, depart from the problem of thread pitch with regard to having produced bolt, also may produce thus and to kill and card rolls.
Model utility content
The problem existing for prior art, thereby the utility model provides a kind of makes two to be connected the tension force that remains certain between part and to guarantee two anti-band tooth bolts of killing that are connected the connective stability between part, and this bolt prevents from itself from being killed or blocking and roll in box thread member reliably.
The utility model for the technological scheme that its technical problem of solution adopts is,
An anti-band tooth bolt of killing, the screw rod that comprise bolt head, extends to form from described bolt head bottom surface downwards and the screw thread being formed in described screw rod outer rim screw portion, and screw thread screws portion and on screw rod, forms screw flight ridge; It is characterized in that:
Described bolt head is hex head bolt head, is provided with an inner hexagonal hole on the end face away from screw rod one side; On end face at described bolt head near screw rod one side, be provided with flanged surface, be provided with tooth ripple groove on described flanged surface, described tooth ripple groove is towards screw rod direction protuberance, and described screw rod runs through tooth ripple groove;
Screw portion at described screw thread and be provided with a guide rod away from one end of bolt head, the diameter of described guide rod is less than the diameter of screw rod, is provided with the guide rod screw thread being formed in described guide rod outer rim and screws portion on described guide rod; With respect to described screw flight ridge, be formed on the guide rod thread ridges that described guide rod screw thread screws in portion and be formed reverse thread structure.
Compared with prior art, the anti-band tooth bolt of killing of the utility model has following advantage:
1, bolt head described in the utility model is provided with flanged surface near the end face of screw rod one side, is provided with tooth ripple groove on described flanged surface.Therefore be connected part when fixing by this bolt by two, its tooth ripple groove can start to contact a side surface that is connected part, along with further tightening of this bolt, tooth ripple groove in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
2, the utility model is provided with the guide rod screw thread being formed in described guide rod outer rim and screws portion on guide rod; With respect to described screw flight ridge, be formed on the guide rod thread ridges that described guide rod screw thread screws in portion and be formed reverse thread structure.Can not precession box thread member in the time of tilt bolt, so bolt again can revolve box thread member in inappropriate situation.Therefore, can prevent reliably bolt kill and card rolls.
Accompanying drawing explanation
Fig. 1 is the anti-main TV structure schematic diagram with tooth bolt of killing of the utility model.
Fig. 2 is the anti-left TV structure schematic diagram with tooth bolt of killing of the utility model.
Fig. 3 is the anti-right TV structure schematic diagram with tooth bolt of killing of the utility model.
In figure: 1, bolt head, 2, screw rod, 3, screw thread screws portion, 31, screw flight ridge, 4, tooth ripple groove, 5, guide rod screw thread screws portion, 51, guide rod thread ridges, 6, inner hexagonal hole, 7, guide rod, 8, flanged surface.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
Anti-band tooth bolt of killing as shown in Figure 1, Figure 2, Figure 3 shows, the screw rod 2 that comprises bolt head 1, extend to form from described bolt head 1 bottom surface downwards and the screw thread being formed in described screw rod 2 outer rims screw portion 3, and screw thread screws portion 3 and on screw rod 2, forms screw flight ridge 31.
Described bolt head 1 is hex head bolt head, and it is provided with an inner hexagonal hole 6 towards the inside of face away from screw rod 2; Even if the distortion of the hex head bolt head of outside, still can utilize inner hexagonal hole 6 to carry out quick-detachment bolt, increase the working life of bolt.
On end face at described bolt head 1 near screw rod 2 one sides, be provided with flanged surface 8, on described flanged surface 8, be provided with tooth ripple groove 4, described tooth ripple groove 4 is towards screw rod 2 direction protuberances, and described screw rod 2 runs through tooth ripple groove 4.Be connected part when fixing by this bolt by two, its tooth ripple groove 4 can start to contact a side surface that is connected part, along with further tightening of this bolt, tooth ripple groove 4 in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
Screw portion 3 at described screw thread and be provided with a guide rod 7 away from one end of bolt head 1, the diameter of described guide rod 7 is less than the diameter of screw rod 2, is provided with the guide rod screw thread being formed in described guide rod 7 outer rims and screws portion 5 on described guide rod 7; With respect to described screw flight ridge 31, be formed on the guide rod thread ridges 51 that described guide rod screw thread screws in portion 5 and be formed reverse thread structure.
When this tilt bolt while inserting box thread part, the guide rod 7 of bolt disturbs with the box thread part of box thread member, or guide rod 7 occurs to disturb and guide rod 7 on the guide rod thread ridges 51 that forms and the box thread of box thread member intermesh.If guide rod 7 just and box thread part disturb, bolt after enter in box thread member.Next, if the guide rod thread ridges 51 of guide rod 7 engages with box thread, in the time that bolt screws in the direction rotation of box thread member, because the guide rod thread ridges 51 with reverse thread structure of guide rod 7 and the engagement of box thread part are exited bolt from box thread member, reach and prevented that bolt from killing and blocking the object of rolling.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. an anti-band tooth bolt of killing, the screw rod (2) that comprises bolt head (1), extend to form from described bolt head (1) bottom surface downwards and the screw thread being formed in described screw rod (2) outer rim screw portion (3), and screw thread screws portion (3) at the upper screw flight ridge (31) that forms of screw rod (2); It is characterized in that:
Described bolt head (1) is hex head bolt head, is provided with an inner hexagonal hole (6) on the end face away from screw rod (2) one sides; Be provided with flanged surface (8) at described bolt head (1) near on the end face of screw rod (2) one sides, on described flanged surface (8), be provided with tooth ripple groove (4), described tooth ripple groove (4) is towards screw rod (2) direction protuberance, and described screw rod (2) runs through tooth ripple groove (4);
Screw portion (3) at described screw thread and be provided with a guide rod (7) away from one end of bolt head (1), the diameter of described guide rod (7) is less than the diameter of screw rod (2), is provided with the guide rod screw thread being formed in described guide rod (7) outer rim and screws portion (5) on described guide rod (7); With respect to described screw flight ridge (31), be formed on the guide rod thread ridges (51) that described guide rod screw thread screws in portion (5) and be formed reverse thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833211.4U CN203627487U (en) | 2013-12-16 | 2013-12-16 | Toothed bolt prevented from being bitten tightly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833211.4U CN203627487U (en) | 2013-12-16 | 2013-12-16 | Toothed bolt prevented from being bitten tightly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627487U true CN203627487U (en) | 2014-06-04 |
Family
ID=50813970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833211.4U Expired - Fee Related CN203627487U (en) | 2013-12-16 | 2013-12-16 | Toothed bolt prevented from being bitten tightly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380911A (en) * | 2014-11-30 | 2015-03-04 | 重庆锦冈机械有限公司 | Agricultural machinery blade fixing frame |
-
2013
- 2013-12-16 CN CN201320833211.4U patent/CN203627487U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380911A (en) * | 2014-11-30 | 2015-03-04 | 重庆锦冈机械有限公司 | Agricultural machinery blade fixing frame |
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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 |
Granted publication date: 20140604 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |