CN216343284U - Novel anti-falling bolt - Google Patents
Novel anti-falling bolt Download PDFInfo
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- CN216343284U CN216343284U CN202122662829.6U CN202122662829U CN216343284U CN 216343284 U CN216343284 U CN 216343284U CN 202122662829 U CN202122662829 U CN 202122662829U CN 216343284 U CN216343284 U CN 216343284U
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Abstract
The utility model relates to the technical field of fasteners, in particular to a novel anti-falling bolt. According to the novel anti-falling bolt, the rotating shaft is arranged inside the bolt main body, the fixing seat is arranged at the bottom end of the bolt main body, the bottom of the rotating shaft is rotatably connected with the fixing seat, the outer ring surface of the bolt main body is provided with the plurality of sliding grooves, the outer ring surface of the bolt main body is slidably connected with the limiting piece through the sliding grooves, the limiting piece is in threaded connection with the rotating shaft, the top end of the rotating shaft is provided with the control head, the positioning device is arranged inside the control groove formed in the bottom of the control head, the outer ring surface of the control head is provided with the two positioning holes, the rotating shaft is rotated, the limiting piece is controlled to move up and down and is matched with the positioning mechanism of the positioning device, so that the bolt main body is effectively locked, and the bolt is prevented from falling off due to external force vibration; the one-way ratchet on the surface of the limiting sheet can effectively prevent the bolt from rotating with the structural member and the nut, and the anti-falling performance of the structural bolt is further improved.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a novel anti-falling bolt.
Background
The bolt is widely applied in daily life and industrial production and manufacturing, and the application range of the bolt is electronic products, mechanical products, digital products, electric power equipment, electromechanical products, ships, vehicles, hydraulic engineering and even the bolt is also useful in chemical experiments, so the bolt is also called industrial rice and has important functions in industry.
When the bolt is in independent use and cooperation nut fastening structure, the bolt especially under the continuous vibration environment because of the exogenic action, and the easy antiport of bolt and nut, after the nut drops, the bolt finally also can drop from the structure, has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to solve the problems existing in the background technology, the novel anti-dropping bolt is provided, and the problem that when the bolt is used independently and is matched with a nut to fasten a structural part, the bolt is particularly under a continuous vibration environment due to the action of external force, the bolt and the nut rotate reversely easily, and after the nut drops, the bolt finally drops from the structural part, so that great potential safety hazards exist is solved.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a novel anticreep bolt, the surface is provided with the bolt main part of outband screw thread, the inside of bolt main part is provided with the pivot of outband screw thread, the bottom of bolt main part is provided with the fixing base, the bottom and the fixing base of pivot rotate to be connected, a plurality of spouts have been seted up on the outer anchor ring of bolt main part, there is spacing piece through spout sliding connection on the outer anchor ring of bolt main part, the middle part threaded hole of seted up of spacing piece, spacing piece and pivot threaded connection, the top of pivot is provided with integrated into one piece's control head, the control groove has been seted up to the bottom of control head, the inside positioner that is provided with of control groove, set up two flexible location mouths of positioning mechanism who is used for positioner on the outer anchor ring of control head.
The bottom of bolt main part is provided with L type step, be provided with the external screw thread on the outer annular surface of L type step, the upper surface of fixing base down seted up with L type step assorted first recess, be provided with the internal thread on the interior anchor ring of first recess, fixing base and bolt main part threaded connection.
The middle part of the bottom surface is provided with a rotary drum which is rotatably connected with the first groove in the first groove, the bottom of the rotary shaft is provided with a clamping column matched with the rotary drum, and the rotary shaft is rotatably connected with the fixed seat through the clamping column in a sleeved mode.
The sliding groove is a fan-shaped groove, and the lower edge of the sliding groove is flush with the bottom surface of the L-shaped step vertical surface of the bolt main body.
The upper surface and the lower bottom surface of the limiting piece are uniformly provided with a plurality of unidirectional ratchets with rotation stopping functions in the radial direction.
The upper surface of the control head is downwards provided with a cross groove, the middle part of the upper surface of the control head is provided with a second groove, and the middle part of the inner bottom surface of the second groove is connected with a countersunk head type screw rod in an inserting mode.
The positioning device comprises a gear, a first positioning block and a second positioning block, the gear is located in the middle of the top surface in the control groove, the bottom of the gear is fixedly connected with the countersunk head type screw rod in a coaxial mode, the first positioning block and the second positioning block are located on two sides of the gear respectively, the lower bottom surfaces of the first positioning block and the second positioning block are flush with the opening surface of the control groove, tooth groove chains matched with the gear are arranged on the side faces, located on the gear side, of the first positioning block and the second positioning block respectively, and the first positioning block and the second positioning block are in meshing transmission through the tooth groove chains corresponding to the positions and the gear respectively.
The structure of the first positioning block is the same as that of the second positioning block, positioning columns are symmetrically arranged on the inner top surface of the control groove, and waist-shaped holes matched with the positioning columns are formed in the front surfaces of the first positioning block and the second positioning block.
The utility model has the beneficial effects that:
(1) the novel anti-falling bolt is characterized in that a rotating shaft is arranged inside a bolt main body, a fixing seat is arranged at the bottom end of the bolt main body, the bottom of the rotating shaft is rotatably connected with the fixing seat, a plurality of sliding grooves are formed in the outer annular surface of the bolt main body, a limiting piece is slidably connected to the outer annular surface of the bolt main body through the sliding grooves and is in threaded connection with the rotating shaft, an integrally formed control head is arranged at the top end of the rotating shaft, a control groove is formed in the bottom of the control head, a positioning device is arranged inside the control groove, two positioning holes for stretching and retracting of a positioning mechanism of the positioning device are formed in the outer annular surface of the control head, the rotating shaft is rotated to control the limiting piece to move up and down and is matched with the positioning mechanism of the positioning device, so that the bolt main body is effectively locked, and the bolt is prevented from falling off due to external force vibration;
(2) the upper surface of spacing piece and the equal radial one-way ratchet that has the non return function that evenly is provided with of bottom surface down, and one-way ratchet can effectively prevent the rotation between bolt and structure and the nut, further promotes the anticreep performance of this structure bolt.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an assembly schematic of the present invention.
FIG. 3 is a schematic view of the internal structure of the positioning device of the present invention.
In the drawing, 1, a bolt main body, 2, a rotating shaft, 3, a fixed seat, 4, a sliding groove, 5, a limiting piece, 6, a control head, 7, a control groove, 8, a positioning device, 9, a positioning opening, 10, a first groove, 11, a rotating drum, 12, a clamping column, 13, a one-way ratchet, 14, a second groove, 15, a countersunk screw rod, 16, a gear, 17, a first positioning block, 18, a second positioning block, 19, a tooth groove chain, 20, a positioning column and 21, a waist-shaped hole are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The novel anti-drop bolt shown in fig. 1, 2 and 3 comprises a bolt body 1 with external threads on the outer surface, a rotating shaft 2 with external threads is arranged inside the bolt body 1, a fixing seat 3 is arranged at the bottom end of the bolt body 1, the bottom of the rotating shaft 2 is rotatably connected with the fixing seat 3, a plurality of sliding grooves 4 are arranged on the outer annular surface of the bolt body 1, a limiting plate 5 is slidably connected with the outer annular surface of the bolt body 1 through the sliding grooves 4, a threaded hole is arranged in the middle of the limiting plate 5, the limiting plate 5 is in threaded connection with the rotating shaft 2, an integrally formed control head 6 is arranged at the top end of the rotating shaft 2, a control groove 7 is arranged at the bottom of the control head 6, a positioning device 8 is arranged inside the control groove 7, two positioning holes 9 for the telescopic positioning mechanism of the positioning device 8 are arranged on the outer annular surface of the control head 6, the rotating shaft 2 is rotated to control the limiting plate 5 to move up and down, and the bolt main body 1 is effectively locked by matching with a positioning mechanism of the positioning device 8, so that the bolt is prevented from falling off due to external force vibration.
Further, for the installation of convenient spacing piece 5, the bottom of bolt main part 1 is provided with L type step, is provided with the external screw thread on the outer annular surface of L type step, the upper surface of fixing base 3 seted up downwards with first recess 10 of L type step assorted, be provided with the internal thread on the interior anchor ring of first recess 10, fixing base 3 and bolt main part 1 threaded connection.
Further, for the convenience of rotating shaft 2, the middle part of the bottom surface is provided with the rotary drum 11 that rotates with first recess 10 and is connected in first recess 10, and the bottom of rotary shaft 2 is provided with rotary drum 11 assorted joint post 12, and rotary drum 11 and fixing base 3 rotation connection are located through 12 covers of joint post to rotary shaft 2.
Further, in order to facilitate the installation of the limiting piece 5, the sliding groove 4 is a fan-shaped groove, and the lower edge of the sliding groove 4 is flush with the bottom surface of the L-shaped step vertical surface of the bolt main body 1.
In the embodiment, as shown in fig. 2, the fixing base 3 is screwed off, the limiting piece 5 passes through the clamping column 12 and is sleeved on the rotating shaft 2 after aligning with the position of the sliding groove 4, the rotating shaft 2 is rotated, the limiting piece 5 moves upwards along the sliding groove 4 under the effect of threaded connection, and finally the fixing base 3 is screwed on the bolt main body 1 again, and the clamping column 12 needs to be inserted into the rotating cylinder 11 during installation.
Further, in order to prevent the rotation between the bolt and the structural member and the nut and further improve the anti-falling performance of the structural bolt, a plurality of one-way ratchets 13 with anti-rotation functions are uniformly arranged on the upper surface and the lower bottom surface of the limiting sheet 5 in the radial direction.
Further, for conveniently adjusting limiting piece 5 and reciprocating, the upper surface of control head 6 has seted up the cross recess downwards, and the pivot 2 can all be rotated to the hand is held between the fingers or is used the cross screwdriver, easily controls reciprocating of limiting piece 5, and second recess 14 has been seted up at the middle part of control head 6 upper surface, and the middle part of bottom surface is pegged graft and is connected with countersunk head type screw 15 in second recess 14, and countersunk head type screw 15 can conveniently be to positioner 8's operation.
Further, in order to further improve the anti-falling performance of the structural bolt, the positioning device 8 comprises a gear 16, a first positioning block 17 and a second positioning block 18, the gear 16 is located in the middle of the inner top surface of the control groove 7, the bottom of the gear 16 is coaxially and fixedly connected with the countersunk screw 15, the first positioning block 17 and the second positioning block 18 are respectively located on two sides of the gear 16, the lower bottom surfaces of the first positioning block 17 and the second positioning block 18 are flush with the opening surface of the control groove 7, the side surfaces of the first positioning block 17 and the second positioning block 18 located on the side of the gear 16 are respectively provided with a tooth groove chain 19 matched with the gear 16, and the first positioning block 17 and the second positioning block 18 are respectively in meshing transmission with the gear 16 through the tooth groove chains 19 in corresponding positions.
Furthermore, in order to effectively control the relative movement of the first positioning block 17 and the second positioning block 18, the first positioning block 17 and the second positioning block 18 have the same structure, the positioning columns 20 are symmetrically arranged on the inner top surface of the control groove 7, and waist-shaped holes 21 matched with the positioning columns 20 are formed in the front surfaces of the first positioning block 17 and the second positioning block 18.
Example (b): as shown in fig. 3, after the limiting piece 5 is tightly contacted with the fastening surface of the fastened structural member, the countersunk screw 15 is rotated, the gear 16 rotates, the first positioning block 17 and the second positioning block 18 are engaged with the gear 16 to drive the first positioning block 17 and the second positioning block 18 to slide left and right, and the first positioning block 17 and the second positioning block 18 slide out of the positioning openings 9 corresponding to the two sides and then are tightly contacted with the front surface of the fastened structural member, at this time, the first positioning block 17 and the second positioning block 18 are matched with the limiting piece 5, so that the bolt body 1 can be completely locked in the fastened structural member.
The utility model relates to a novel anti-drop bolt, wherein a rotating shaft 2 is arranged inside a bolt main body 1, a fixed seat 3 is arranged at the bottom end of the bolt main body 1, the bottom of the rotating shaft 2 is rotatably connected with the fixed seat 3, a plurality of sliding grooves 4 are arranged on the outer ring surface of the bolt main body 1, a limiting piece 5 is slidably connected with the outer ring surface of the bolt main body 1 through the sliding grooves 4, the limiting piece 5 is in threaded connection with the rotating shaft 2, an integrally formed control head 6 is arranged at the top end of the rotating shaft 2, a control groove 7 is arranged at the bottom of the control head 6, a positioning device 8 is arranged inside the control groove 7, two positioning holes 9 for stretching and retracting of a positioning mechanism of the positioning device 8 are arranged on the outer ring surface of the control head 6, the rotating shaft 2 is rotated to control the limiting piece 5 to move up and down, the bolt body 1 is effectively locked by matching with a positioning mechanism of the positioning device 8, so that the bolt is prevented from falling off due to external force vibration; the upper surface and the lower bottom surface of the limiting sheet 5 are uniformly and radially provided with a plurality of one-way ratchets 13 with non-return rotation functions, the one-way ratchets 13 can effectively prevent the rotation between the bolt and the structural member and the nut, and the anti-falling performance of the structural bolt is further improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a novel anticreep bolt, is provided with bolt main part (1) of outband screw thread including the surface, characterized by: a rotating shaft (2) with external threads is arranged inside the bolt main body (1), a fixed seat (3) is arranged at the bottom end of the bolt main body (1), the bottom of the rotating shaft (2) is rotationally connected with the fixed seat (3), the outer ring surface of the bolt main body (1) is provided with a plurality of sliding grooves (4), the outer ring surface of the bolt main body (1) is connected with a limiting piece (5) through a sliding groove (4) in a sliding way, the middle part of the limiting sheet (5) is provided with a threaded hole, the limiting sheet (5) is in threaded connection with the rotating shaft (2), the top end of the rotating shaft (2) is provided with an integrally formed control head (6), a control groove (7) is arranged at the bottom of the control head (6), a positioning device (8) is arranged in the control groove (7), two positioning openings (9) used for stretching and retracting of the positioning mechanism of the positioning device (8) are formed in the outer annular surface of the control head (6).
2. The novel anti-drop bolt as claimed in claim 1, wherein: the bottom of bolt main part (1) is provided with L type step, be provided with the external screw thread on the outer annular surface of L type step, the upper surface of fixing base (3) down seted up with L type step assorted first recess (10), be provided with the internal thread on the interior anchor ring of first recess (10), fixing base (3) and bolt main part (1) threaded connection.
3. The novel anti-drop bolt as claimed in claim 2, wherein: the middle part of bottom surface is provided with and rotates rotary drum (11) of being connected with first recess (10) in first recess (10), the bottom of pivot (2) be provided with rotary drum (11) assorted joint post (12), pivot (2) locate rotary drum (11) and fixing base (3) through joint post (12) cover and rotate and be connected.
4. The novel anti-drop bolt as claimed in claim 1, wherein: the sliding groove (4) is a fan-shaped groove, and the lower edge of the sliding groove (4) is flush with the bottom surface of the L-shaped step vertical surface of the bolt main body (1).
5. The novel anti-drop bolt as claimed in claim 1, wherein: the upper surface and the lower bottom surface of the limiting sheet (5) are uniformly provided with a plurality of unidirectional ratchets (13) with rotation stopping functions in the radial direction.
6. The novel anti-drop bolt as claimed in claim 1, wherein: the upper surface of the control head (6) is downwards provided with a cross groove, the middle part of the upper surface of the control head (6) is provided with a second groove (14), and the middle part of the inner bottom surface of the second groove (14) is in inserted connection with a countersunk head type screw (15).
7. The novel anti-drop bolt as claimed in claim 6, wherein: the positioning device (8) comprises a gear (16), a first positioning block (17) and a second positioning block (18), the gear (16) is located in the middle of the inner top surface of the control groove (7), the bottom of the gear (16) is coaxially and fixedly connected with the countersunk head type screw (15), the first positioning block (17) and the second positioning block (18) are located on two sides of the gear (16) respectively, the lower bottom surfaces of the first positioning block (17) and the second positioning block (18) are flush with the opening surface of the control groove (7), tooth groove chains (19) matched with the gear (16) are arranged on the side surfaces of the first positioning block (17) and the second positioning block (18) located on the side of the gear (16), and the first positioning block (17) and the second positioning block (18) are in meshing transmission with the gear (16) through the tooth groove chains (19) corresponding to the positions respectively.
8. The novel anti-drop bolt as claimed in claim 7, wherein: the structure of the first positioning block (17) is the same as that of the second positioning block (18), positioning columns (20) are symmetrically arranged on the inner top surface of the control groove (7), and waist-shaped holes (21) matched with the positioning columns (20) are formed in the front surfaces of the first positioning block (17) and the second positioning block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662829.6U CN216343284U (en) | 2021-11-02 | 2021-11-02 | Novel anti-falling bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662829.6U CN216343284U (en) | 2021-11-02 | 2021-11-02 | Novel anti-falling bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343284U true CN216343284U (en) | 2022-04-19 |
Family
ID=81132773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122662829.6U Active CN216343284U (en) | 2021-11-02 | 2021-11-02 | Novel anti-falling bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343284U (en) |
-
2021
- 2021-11-02 CN CN202122662829.6U patent/CN216343284U/en active Active
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