CN108488198B - Self-locking bolt - Google Patents
Self-locking bolt Download PDFInfo
- Publication number
- CN108488198B CN108488198B CN201810670098.XA CN201810670098A CN108488198B CN 108488198 B CN108488198 B CN 108488198B CN 201810670098 A CN201810670098 A CN 201810670098A CN 108488198 B CN108488198 B CN 108488198B
- Authority
- CN
- China
- Prior art keywords
- arc
- block
- screw
- nut
- rotating shaft
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036410 touch Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Abstract
The invention belongs to the technical field of fixed components, and particularly relates to a self-locking bolt which comprises a screw rod, a screw head and a nut, wherein the screw head is disc-shaped and is provided with a through hole in the horizontal direction; the screw is a half-thread screw, one end of the screw close to the screw head is a smooth surface, and the other end of the screw far away from the screw head is of a thread structure; the nut is matched with the bolt. The self-locking bolt group has good anti-theft effect, and two self-locking modes for the nut are provided, so that a selectable space is provided.
Description
Technical Field
The invention belongs to the technical field of fixing components, and particularly relates to a self-locking bolt.
Background
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.
The general nut can loosen by itself due to vibration and other reasons in the using process, and in order to prevent the phenomenon, the self-locking bolt is invented. The self-locking bolt has the functions of anti-loosening, anti-vibration and anti-theft.
Patent document 1: a self-locking anti-theft bolt group, application number: 2017106220672
In the patent document 1, the clamping strips are arranged on the screw rod and clamped between the first nut and the second nut, so that the bolt group is self-locked and is not easy to detach, but the clamping strips are too few, and when the bolt is frequently vibrated, the self-locking effect of the two clamping strips on the bolt is poor, and the bolt is easy to slide out.
Disclosure of Invention
In order to make up for the defects of the prior art, the self-locking bolt provided by the invention can enable the bolt group to be self-locked, and has a good anti-theft effect.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a self-locking bolt which comprises a screw rod, a screw head and a nut, wherein the screw head is disc-shaped, and a through hole is formed in the horizontal direction of the screw head; the screw is a half-thread screw, one end of the screw close to the screw head is a smooth surface, and one end of the screw far away from the screw head is of a thread structure; the nut is matched with the bolt.
A cylindrical groove is formed in the middle of the screw rod, a rotating shaft, a circular ring block and a semicircular block are installed in the cylindrical groove, and the rotating shaft is located in the cylindrical groove of the screw rod; the circular ring blocks are arranged on the rotating shaft at intervals; the semicircular blocks are arranged on the circular ring blocks, and the included angle between the semicircular blocks is 120 degrees. After the nut is screwed on the screw rod, the rotating handle is screwed, so that the rotating shaft drives the circular ring block to rotate, and the semicircular block rotates along with the circular ring block.
The lower half section of the screw is provided with a thread structure, the outer wall of the lower half section of the screw is provided with three arc-shaped grooves which are uniformly distributed along the circumferential direction, the arc-shaped grooves are distributed at intervals in the vertical direction, and the arc-shaped grooves and the circular ring blocks are correspondingly distributed at the same horizontal height; the arc-shaped groove is internally provided with an arc block and a guide rod; the arc block is positioned in the arc groove; the guide rod is arranged on the arc block, penetrates through the arc groove, and is positioned in the cylindrical groove. When the semicircular block rotates, the semicircular block enables the guide rod to move outwards, and the guide rod pushes the arc block to move.
The arc block is also provided with a fixed block and a clamping strip; the fixed block is arranged on the arc block; the clamping strip is hinged on the circular ring block. When the arc block moves outwards, the clamping strips rotate towards two sides when touching the nut, and the clamping strips clamp the nut.
The arc block is also provided with a fixed block, a clamping strip, a rack, a gear and a round shaft pin; the fixed block is arranged on the arc block; the clamping strip is hinged on the fixing block through a round shaft pin; the gear is arranged on the round shaft of the round shaft pin; the rack is meshed with the gear, a first groove is formed in the fixing block, and the rack is located in the first groove of the fixing block. When the circular arc piece moved to the outside, the rack followed the circular arc piece and moved to the outside, after the nut was extruded to the rack, the rack moved to the inboard in the recess of fixed block, and the rack removes and makes gear revolve, and gear revolve struts the card strip in the screw thread of nut for the nut card is dead.
The rotating shaft penetrates through the screw head, a second horizontal through hole is formed in the upper end of the rotating shaft, and the rotating handle is installed on the rotating shaft. And screwing the rotating handle to enable the rotating shaft to rotate, and after the rotating shaft rotates for a certain angle, welding the pin after the pin penetrates through the through hole of the screw head and the through hole of the rotating shaft.
The invention has the following beneficial effects:
1. according to the self-locking bolt, the nut is clamped through the clamping strip, so that the bolt group is self-locked, the bolt group is not easy to detach, a good anti-theft effect is achieved, two self-locking modes for the nut are provided, and a selectable space is provided.
2. According to the self-locking bolt, the circular ring block, the semicircular block, the guide rod and the arc block are matched with each other, the arc block is pushed outwards, the nut is self-locked by the clamping strip and the fixing block which are arranged on the matched arc block, and the self-locking bolt has a good anti-vibration effect.
3. According to the self-locking bolt, after the rotating shaft is screwed by the rotating handle to clamp the nut, the pin is inserted into the head of the nut and penetrates through the rotating shaft to position and limit the rotating shaft, so that the self-locking of the nut is further ensured, and the anti-theft effect is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of the invention at B of FIG. 2;
FIG. 4 is a schematic view of a second embodiment of the present invention;
in the figure: the screw rod 1, the screw head 2, the nut 3, the cylindrical groove 4, the rotating shaft 5, the circular ring block 6, the semicircular block 7, the rotating handle 8, the arc-shaped groove 11, the circular arc block 12, the guide rod 13, the fixing block 14, the clamping strip 15, the rack 16 and the gear 17.
Detailed Description
The structure of a self-locking bolt according to the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1, the self-locking bolt of the present invention comprises a screw rod 1, a screw head 2 and a nut 3, wherein the screw head 2 is disc-shaped, and the screw head 2 is provided with a through hole in the horizontal direction; the screw 1 is a half-thread screw, one end of the screw 1 close to the screw head 2 is a smooth surface, and the other end of the screw 1 far away from the screw head 2 is of a thread structure; the nut 3 is matched with the bolt.
As shown in fig. 2, a cylindrical groove 4 is formed in the middle of the screw rod 1, a rotating shaft 5, a circular ring block 6 and a semicircular block 7 are installed in the cylindrical groove 4, and the rotating shaft 5 is located in the cylindrical groove 4 of the screw rod 1; the circular blocks 6 are arranged on the rotating shaft 5, and the circular blocks 6 are arranged at intervals; the semicircular blocks 7 are arranged on the circular block 6, and the included angle between the semicircular blocks 7 is 120 degrees. After the nut 3 is screwed on the screw rod 1, the rotating handle 8 is screwed, so that the rotating shaft 5 drives the circular block 6 to rotate, and the semicircular block 7 rotates along with the circular block 6.
As shown in fig. 2, the lower half section of the screw rod 1 has a thread structure, the outer wall of the lower half section of the screw rod 1 is provided with three arc-shaped grooves 11, the arc-shaped grooves 11 are uniformly arranged along the circumferential direction, the arc-shaped grooves 11 are arranged at intervals in the vertical direction, and the arc-shaped grooves 11 and the ring blocks 6 are arranged correspondingly and at the same horizontal height; the arc-shaped groove 11 is internally provided with an arc block 12 and a guide rod 13; the arc block 12 is positioned in the arc groove 11; the guide rod 13 is arranged on the arc block 12, the guide rod 13 penetrates through the arc groove 11, and one section of the guide rod 13 is positioned in the cylindrical groove 4. When the semicircular block 7 rotates, the semicircular block 7 moves the guide rod 13 outward, and the guide rod 13 pushes the arc block 12 to move.
As shown in fig. 3, the arc block 12 is further provided with a fixing block 14 and a clamping strip 15; the fixed block 14 is arranged on the arc block 12; the clamping strip 15 is hinged on the circular ring block 6. When the arc block 12 moves outwards, the clamping strip 15 rotates towards two sides when touching the nut 3, and the clamping strip 15 clamps the nut 3.
As shown in fig. 4, the arc block 12 is further provided with a fixing block 14, a clamping strip 15, a rack 16, a gear 17 and a round shaft pin; the fixed block 14 is arranged on the arc block 12; the clamping strip 15 is hinged on the fixing block 14 through a round shaft pin; the gear 17 is arranged on the round shaft of the round shaft pin; the rack 16 is meshed with the gear 17, a first groove is formed in the fixing block 14, and the rack 16 is located in the first groove of the fixing block 14. When the arc block 12 moves outwards, the rack 16 moves outwards along with the arc block 12, after the rack 16 extrudes the nut 3, the rack 16 moves inwards in the first groove of the fixing block 14, the rack 16 moves to enable the gear 17 to rotate, and the gear 17 rotates to enable the clamping strip 15 to be spread and clamped in the thread of the nut 3, so that the nut 3 is clamped.
As shown in fig. 1, the rotating shaft 5 penetrates through the screw head 2, a second horizontal through hole is formed in the upper end of the rotating shaft 5, and a rotating handle 8 is installed on the rotating shaft 5. And screwing the rotating handle 8 to enable the rotating shaft 5 to rotate, and after the rotating shaft is rotated by a certain angle, welding the pin after the pin penetrates through the through hole of the screw head 2 and the through hole of the rotating shaft 5.
The specific working process is as follows:
the first implementation mode comprises the following steps:
after screw rod 1 is twisted to nut 3, twist and move turning handle 8, make axis of rotation 5 rotate, axis of rotation 5 drives ring piece 6 and rotates, semicircle piece 7 follows ring piece 6 and rotates, semicircle piece 7 makes guide arm 13 move to the outside, guide arm 13 is pushing away circular arc piece 12 and is moving, when circular arc piece 12 moves to the outside, when card strip 15 touchs nut 3, card strip 15 rotates to both sides, card strip 15 dies nut 3 card, after nut 3 card dies, utilize the pin to pass through the through-hole of spiral shell head 2 and axis of rotation 5 after two, weld the pin.
The second embodiment:
after the nut 3 is screwed on the screw rod 1, the rotating handle 8 is screwed, so that the rotating shaft 5 rotates, the rotating shaft 5 drives the circular ring block 6 to rotate, the semicircular block 7 rotates along with the circular ring block 6, the guide rod 13 moves towards the outer side due to the semicircular block 7, the guide rod 13 pushes the circular arc block 12 to move, when the circular arc block 12 moves towards the outer side, the rack 16 moves towards the outer side along with the circular arc block 12, after the rack 16 extrudes the nut 3, the rack 16 moves towards the inner side in the first groove of the fixing block 14, the rack 16 moves to enable the gear 17 to rotate, the gear 17 rotates to prop the clamping strip 15 open to be clamped in the thread of the nut 3, so that the nut 3 is clamped, and after the nut 3 is clamped, the pin is welded after passing through the through hole of the screw head 2 and the through.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
(A) In the above embodiment, the included angle between the arc blocks may be set to 180 degrees, and need not be 120 degrees.
Industrial applicability
According to the invention, the self-locking bolt has good self-locking effect and has practical effects of vibration prevention and theft prevention.
Claims (1)
1. A self-locking bolt comprises a screw rod (1), a screw head (2) and a nut (3), wherein the screw head (2) is disc-shaped, and a through hole is formed in the screw head (2) in the horizontal direction; the method is characterized in that: the screw (1) is a half-thread screw, one end of the screw (1) close to the screw head (2) is a smooth surface, and the other end of the screw (1) far away from the screw head (2) is of a thread structure; the nut (3) is matched with the bolt; wherein the content of the first and second substances,
a cylindrical groove (4) is formed in the middle of the screw rod (1), a rotating shaft (5), a circular ring block (6) and a semicircular block (7) are installed in the cylindrical groove (4), and the rotating shaft (5) is located in the cylindrical groove (4) of the screw rod (1); the circular ring blocks (6) are arranged on the rotating shaft (5), and the circular ring blocks (6) are arranged at intervals; the semicircular blocks (7) are arranged on the circular ring blocks (6), and the included angle between the semicircular blocks (7) is 120 degrees;
the lower half section of the screw rod (1) is provided with a thread structure, the outer wall of the lower half section of the screw rod (1) is provided with three arc-shaped grooves (11), the three arc-shaped grooves (11) are uniformly arranged along the circumferential direction, the arc-shaped grooves (11) are arranged at intervals in the vertical direction, and the arc-shaped grooves (11) and the circular ring blocks (6) are arranged correspondingly and at the same horizontal height; an arc block (12) and a guide rod (13) are arranged in the arc-shaped groove (11); the arc block (12) is positioned in the arc groove (11); the guide rod (13) is arranged on the arc block (12), the guide rod (13) penetrates through the arc groove (11), and one section of the guide rod (13) is positioned in the cylindrical groove (4);
the rotating shaft (5) penetrates through the screw head (2), a second horizontal through hole is formed in the upper end of the rotating shaft (5), and a rotating handle (8) is mounted on the rotating shaft (5);
the arc block (12) is also provided with a fixed block (14), a clamping strip (15), a rack (16), a gear (17) and a round shaft pin; the fixed block (14) is arranged on the arc block (12); the clamping strip (15) is hinged on the fixing block (14) through a round shaft pin; the gear (17) is arranged on the round shaft of the round shaft pin; the rack (16) is meshed with the gear (17), a first groove is formed in the fixed block (14), and the rack (16) is located in the first groove of the fixed block (14);
the arc block (12) is also provided with a fixed block (14) and a clamping strip (15); the fixed block (14) is arranged on the arc block (12); the clamping strip (15) is hinged on the circular ring block (6);
when in use: after screw rod (1) is twisted to nut (3), twist and move turning handle (8), make axis of rotation (5) rotate, axis of rotation (5) drive ring piece (6) and rotate, semicircle piece (7) are followed ring piece (6) and are rotated, semicircle piece (7) make guide arm (13) move to the outside, guide arm (13) are being pushed arc piece (12) and are being removed, when arc piece (12) move to the outside, when card strip (15) touch nut (3), card strip (15) are rotated to both sides, card strip (15) are died nut (3) card, after nut (3) card is died, after utilizing the pin to pass through the through-hole of spiral shell head (2) and the through-hole two of axis of rotation (5), weld the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670098.XA CN108488198B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670098.XA CN108488198B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108488198A CN108488198A (en) | 2018-09-04 |
| CN108488198B true CN108488198B (en) | 2020-08-25 |
Family
ID=63343285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810670098.XA Active CN108488198B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108488198B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410408A (en) * | 2019-08-25 | 2019-11-05 | 华东交通大学 | A kind of Anti-loose fastener |
| CN111043129B (en) * | 2019-12-16 | 2021-10-15 | 江苏明璐不锈钢有限公司 | Self-locking fixing bolt for constructional engineering |
| CN113357251A (en) * | 2021-05-31 | 2021-09-07 | 海盐南方标准件有限公司 | Anti-loosening screw assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100001405U (en) * | 2008-07-30 | 2010-02-09 | 윤택우 | Loose Prevention Apparatus Of Bolt And Nut |
| CN207145422U (en) * | 2017-04-14 | 2018-03-27 | 浙江国盛汽车科技股份有限公司 | A kind of self-locking screw for equidistant part |
| CN107676363A (en) * | 2017-10-30 | 2018-02-09 | 安徽凯瑞汽配制造有限公司 | A kind of bolt assembly |
| CN207364070U (en) * | 2017-10-30 | 2018-05-15 | 安徽凯瑞汽配制造有限公司 | A kind of bolt assembly |
| CN108071651A (en) * | 2017-11-29 | 2018-05-25 | 中国直升机设计研究所 | A kind of screw-nut integration self-locking mechanism |
| CN108105246A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of anti-loosening non-return type connection structure |
-
2018
- 2018-06-26 CN CN201810670098.XA patent/CN108488198B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108488198A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108488198B (en) | Self-locking bolt | |
| CN201537781U (en) | Mechanical tensioning device | |
| CN204403104U (en) | A kind of Novel bolt fixing device | |
| CN104314944A (en) | Completely dismountable expansive bolt and dismounting method thereof | |
| CN109048301B (en) | Full-automatic quick tightening mechanism suitable for bolt and nut | |
| CN204213116U (en) | A kind of locking device and access cover thereof | |
| CN111536136A (en) | Anti-loosening fastening assembly | |
| CN112496733B (en) | Clamping and mounting integrated device for circular workpiece plate | |
| CN106239428B (en) | A kind of device of quick assembling stud | |
| CN209175658U (en) | It is a kind of for connecting mechanical stud error-proofing tool | |
| CN113062907B (en) | Expansion fastening bolt for cork material and mounting method thereof | |
| CN204140587U (en) | A kind of EXPANSION ANCHOR BOLTS that can remove completely | |
| CN102384141B (en) | Connecting piece with fast disassembly and assembly | |
| CN202381479U (en) | Connecting piece capable of being quickly assembled and disassembled | |
| CN211082521U (en) | Nut with anti-loosening function | |
| CN2880331Y (en) | Lathe processing clamp for workpiece with hole | |
| CN210034830U (en) | Medical quick clamping device | |
| CN208614284U (en) | A kind of valve body processor bed | |
| CN112178033A (en) | Quick nut | |
| CN203062007U (en) | Gear hobbing machine clamp bringing convenience to loading and unloading of workpieces | |
| CN111451589A (en) | Machining device for bolt broken wire | |
| CN218177696U (en) | Bolt and nut mechanism capable of realizing quick assembly and disassembly | |
| CN104314947A (en) | Anti-theft nut and wrench | |
| CN220622402U (en) | Screw with lock structure | |
| CN115523220B (en) | Flanged anti-loosening bolt for fastening automobile parts, forming equipment and processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200716 Address after: 057150 Beixi Street Tiexi Yongfeng Road South, Linmingguan Town, Yongnian District, Handan City, Hebei Province Applicant after: Hebei Jiujin electric equipment manufacturing Co., Ltd Address before: Suzhou City, Jiangsu province 215611 Zhangjiagang City Tangqiao town Road 188, Jiangsu the Milky Way electronic Limited by Share Ltd Applicant before: Zhou Yanchun |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |