CN2674180Y - Improved screw bolt and screw nut - Google Patents
Improved screw bolt and screw nut Download PDFInfo
- Publication number
- CN2674180Y CN2674180Y CN 200320104506 CN200320104506U CN2674180Y CN 2674180 Y CN2674180 Y CN 2674180Y CN 200320104506 CN200320104506 CN 200320104506 CN 200320104506 U CN200320104506 U CN 200320104506U CN 2674180 Y CN2674180 Y CN 2674180Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- lock core
- retaining pin
- nut
- nut retaining
- 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 discloses an improved screw bolt and screw nut. Wherein, the screw rod of the bolt is provided with a lock core cavity which is provided with a lock core. The side wall of the screw rod in the lock core cavity is provided with a T-shaped cap nut back stop pin and a T-shaped cap nut back stop pin return spring. The lock core corresponding to the T-shaped cap nut back stop pin in the lock core cavity is provided with a cam axle used for changing the position of the T-shaped cap nut back stop pin. The aperture of the lock core cavity is arranged on the axial front end face of the bolt or on the axial back end face of the bolt. The inside wall of the bolt connection hole in the cap nut is provided with a ring nut back stop pin slot whose groove depth is equal to or bigger than the length of the T-shaped cap nut back stop pin extending from the side wall of the screw rod. The ring nut back stop pin slot is positioned in the bolt connection hole, at the front end and/or at the back end of the bolt connection hole. The improved bolt and the cap nut of the utility model has the advantages of preventing the disassembly from stealers, the accidental loosening of the cap nut and damages from people.
Description
Affiliated technical field
The utility model relates to a kind of improved original paper that is connected and fixed, and particularly relates to a kind of improved bolts and nuts.
Background technique
At present, as long as the existing screw bolt and nut that is used to be connected and fixed usefulness has the common special tool of suitable easy acquisition just can dismantle easily, thereby can cause the equipment or the part that use existing screw bolt and nut to be connected and fixed stolen or destroyed easily; For example, the tire of automobile can be stolen when berthing night, and the railway spike of fixedly connected rail can be shed easily; In addition, existing screw bolt and nut also exists the defective of easy loose or dislocation.
Summary of the invention
The purpose of this utility model provides a kind ofly can hinder unauthorized person dismounting, can stop the unexpected loose or dislocation of nut and prevent the improved screw bolt and nut of artificial destruction.
The purpose of this utility model is achieved in that a kind of improved bolts and nuts, comprises bolt that has externally threaded screw rod and the nut that has the bolt connecting hole of internal thread wherein being provided with a lock core cavity in screw rod; The lock core that has keyhole is being set in lock core cavity; Movable T-nut retaining pin that runs through the screw rod sidewall and the T-nut retaining pin Returnning spring that is socketed on the T-nut retaining pin of being provided with on the sidewall of screw rod in lock core cavity; Be provided with the camshaft that is used to change T-nut retaining pin position in the lock core cavity with on the lock core of T-nut retaining pin corresponding position; The opening of lock core cavity is arranged on the axial forward end face of bolt or on the axial rearward end face of bolt;
In nut, also be provided with a collar nut retaining pin slot coaxial on the inwall of bolt connecting hole with bolt connecting hole; The groove depth of collar nut retaining pin slot is equal to or greater than the length that the T-nut retaining pin can stretch out in the screw rod sidewall; Collar nut retaining pin slot is positioned at inside, front end and/or the rearward end of bolt connecting hole.
Because being provided with one on existing bolt, the utility model can control the T-nut retaining pin of stretching out or withdrawing with key, after bolts and nuts are tightened, only need the T-nut retaining pin on the bolt to be set to the state of stretching out with key, the T-nut retaining pin that stretches out in bolt this moment just can effectively limit the rotation of nut on bolt and move, thereby can reach the technique effect that hinders the unauthorized person dismounting and can stop unexpected loose or dislocation; When needing dismounting, only need with key the T-nut retaining pin on the bolt to be set to retracted mode earlier, promptly can carry out freely dismantling; In addition, be within the collar nut retaining pin slot that is inserted on the nut owing to stretch out in the T-nut retaining pin of bolt, so can also preventing the T-nut retaining pin that stretches out in bolt, the utility model suffers artificial destruction.
Description of drawings
Fig. 1 is in the internal structure schematic representation of locking state for a kind of embodiment of the utility model
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation
Fig. 3 is a right elevation of the present utility model shown in Figure 1
Fig. 4 is in the internal structure schematic representation of open mode for the utility model shown in Figure 1
Fig. 5 is that the B-B of Fig. 4 is to the sectional structure schematic representation
Fig. 6 is a working state schematic representation of the present utility model shown in Figure 1
Among the figure: 1-lock core cavity 6-T shape nut retaining pin
2-lock core 7-T shape nut retaining pin Returnning spring
3-nut 8-keyhole
4-screw rod 9-fixture
5-collar nut retaining pin slot
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, a kind of improved bolt comprises having externally threaded screw rod 4, wherein is provided with a lock core cavity 1 in screw rod 4; The lock core 2 that has keyhole 8 is being set in lock core cavity 1; Movable T-nut retaining pin 6 that runs through screw rod 4 sidewalls and the T-nut retaining pin Returnning spring 7 that is socketed on the T-nut retaining pin 6 of being provided with on the sidewall of screw rod 4 in lock core cavity 1; Be provided with the camshaft that is used to change T-nut retaining pin 6 positions in the lock core cavity 1 with on the lock core 2 of T-nut retaining pin 6 corresponding positions; As shown in Figure 6, after fixture 9 usefulness bolts and nuts 3 described in the utility model are fixedly tightened, only need the T-nut retaining pin 6 on the bolt to be set to the state of stretching out with key, the T-nut retaining pin 6 that stretches out in bolt this moment just can effectively limit the rotation of nut 3 on bolt and move, thereby can reach the technique effect that hinders the unauthorized person dismounting and stop unexpected loose or dislocation; As shown in Figure 4 and Figure 5, when needing dismounting, only need with key the T-nut retaining pin 6 on the bolt to be set to retracted mode earlier, promptly can carry out freely dismantling.
According to the requirement of actual use position of the present utility model, the opening of lock core cavity 1 can be arranged on the axial forward end face of bolt or on the axial rearward end face of bolt.
When the utility model need use among than rugged environment, in order to prevent that foreign matters such as dust, earth or rainwater from entering lock core 2, on an end of the opening that has lock core cavity 1 on the bolt, can also be provided with the cup-shaped end cap that the end of a size and shape and bolt cooperatively interacts.
A kind of improved nut 3 comprises the bolt connecting hole that has internal thread, wherein also is provided with a collar nut retaining pin slot 5 coaxial with bolt connecting hole in nut 3 on the inwall of bolt connecting hole; The groove depth of collar nut retaining pin slot 5 is equal to or greater than the length that T-nut retaining pin 6 can stretch out in screw rod 4 sidewalls; As Fig. 1, Fig. 2 and shown in Figure 6, the purpose that collar nut retaining pin slot 5 is set on nut 3 is to hold and protect T-nut retaining pin 6 with it, prevents that T-nut retaining pin 6 that the lawless person will stretch out in bolt with saw or file from amputating or rasp away.
According to the requirement of intensity and machining accuracy, collar nut retaining pin slot 5 can be positioned at inside, front end and/or the rearward end of bolt connecting hole.
Certainly, bolt described in the utility model also can with the supporting use of plain nut; When just being used in combination like this, the T-nut retaining pin 6 on the bolt is owing to being exposed, so T-nut retaining pin 6 is amputated with saw or file by the lawless person easily or rasps away.
Claims (2)
1. improved bolts and nuts comprise bolt that has externally threaded screw rod (4) and the nut (3) that has the bolt connecting hole of internal thread it is characterized in that being provided with a lock core cavity (1) in screw rod (4); The lock core (2) that has keyhole (8) is being set in lock core cavity (1); Movablely on the sidewall of screw rod (4) in lock core cavity (1) the T-nut retaining pin (6) that runs through the screw rod sidewall is being set and is being socketed in T-nut retaining pin Returnning spring (7) on the T-nut retaining pin (6); Be provided with the camshaft that is used to change T-nut retaining pin (6) position in the lock core cavity (1) with on the lock core (2) of T-nut retaining pin (6) corresponding position; The opening of lock core cavity (1) is arranged on the axial forward end face of bolt or on the axial rearward end face of bolt;
In nut (3), also be provided with a collar nut retaining pin slot (5) coaxial on the inwall of bolt connecting hole with bolt connecting hole; The groove depth of collar nut retaining pin slot (5) is equal to or greater than the length that T-nut retaining pin (6) can stretch out in screw rod (4) sidewall; Collar nut retaining pin slot (5) is positioned at inside, front end and/or the rearward end of bolt connecting hole.
2. a kind of improved bolts and nuts according to claim 1 is characterized in that being provided with the cup-shaped end cap that the end of a size and shape and bolt cooperatively interacts on an end of the opening that has lock core cavity (1) on the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104506 CN2674180Y (en) | 2003-10-30 | 2003-10-30 | Improved screw bolt and screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104506 CN2674180Y (en) | 2003-10-30 | 2003-10-30 | Improved screw bolt and screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674180Y true CN2674180Y (en) | 2005-01-26 |
Family
ID=34474251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104506 Expired - Fee Related CN2674180Y (en) | 2003-10-30 | 2003-10-30 | Improved screw bolt and screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674180Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398055A (en) * | 2013-08-08 | 2013-11-20 | 贵州航天精工制造有限公司 | Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof |
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
| CN103742500A (en) * | 2013-12-26 | 2014-04-23 | 北京市三一重机有限公司 | Hinge pin component and piling machinery |
| CN107933890A (en) * | 2017-11-08 | 2018-04-20 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of propeller of later maintenance |
| CN108488197A (en) * | 2018-05-31 | 2018-09-04 | 长安大学 | A kind of self-locking type Antiskid screw and its operating method |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN111927642A (en) * | 2020-05-25 | 2020-11-13 | 北京动力机械研究所 | Detachable spring push rod mechanism with retaining function |
-
2003
- 2003-10-30 CN CN 200320104506 patent/CN2674180Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
| CN103398055A (en) * | 2013-08-08 | 2013-11-20 | 贵州航天精工制造有限公司 | Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof |
| CN103742500A (en) * | 2013-12-26 | 2014-04-23 | 北京市三一重机有限公司 | Hinge pin component and piling machinery |
| CN103742500B (en) * | 2013-12-26 | 2016-08-17 | 北京市三一重机有限公司 | Assembly of pin and piling machinery |
| CN107933890A (en) * | 2017-11-08 | 2018-04-20 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of propeller of later maintenance |
| CN108488197A (en) * | 2018-05-31 | 2018-09-04 | 长安大学 | A kind of self-locking type Antiskid screw and its operating method |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN111927642A (en) * | 2020-05-25 | 2020-11-13 | 北京动力机械研究所 | Detachable spring push rod mechanism with retaining function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |