CN218817512U - Bolt with anti-withdrawing function - Google Patents
Bolt with anti-withdrawing function Download PDFInfo
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- CN218817512U CN218817512U CN202222882801.8U CN202222882801U CN218817512U CN 218817512 U CN218817512 U CN 218817512U CN 202222882801 U CN202222882801 U CN 202222882801U CN 218817512 U CN218817512 U CN 218817512U
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- nut
- screw
- moving back
- fastening nut
- bolt
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Abstract
The utility model discloses a bolt with prevent moving back a function, including screw rod fixing base and the outside screw rod of fixed connection at the screw rod fixing base, reciprocal thread groove has been seted up to the outside of screw rod, and the threaded connection of the outside of reciprocal thread groove has fastening nut and prevents moving back a screw nut, fastening nut with prevent moving back a screw nut and reciprocal thread groove's screw opposite direction, fastening nut is located the screw rod fixing base and prevents moving back between the screw nut, fastening nut with prevent moving back and be provided with spacing subassembly between the screw nut. The utility model discloses in, use through the cooperation of reciprocal thread groove, fastening nut, prevent moving back the silk nut, spacing subassembly, short rectangular spacing groove and long rectangular spacing groove for opposite direction threaded connection's fastening nut with prevent moving back the silk nut and can be by fixed connection, prevent that fastening nut from taking place relative rotation with preventing moving back the silk nut and influence fastening nut's fastening effect and prevent moving back the silk nut prevent moving back the silk effect, thereby make this bolt have the function of preventing moving back the silk.
Description
Technical Field
The utility model relates to a bolt technical field especially relates to a bolt with prevent moving back a function.
Background
Bolts are one of the most widely used mechanical components. The bolt consists of a head part and a screw rod, needs to be matched with a nut for use, and is used for fastening and connecting two parts with through holes. The bolt is an indispensable fastener of mechanical equipment, and one of the advantages of the bolt connection over other connecting pieces is that the bolt connection can be disassembled and is easy to maintain, but the bolt connection is also a weak point.
The existing bolt and nut are matched to be used for fastening two parts, and the screwing degree between the bolt and the nut is smaller and smaller along with the lapse of time, so that the phenomenon of wire withdrawing occurs, and therefore the bolt with the wire withdrawing prevention function is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the screwing degree between the bolt and the nut is smaller and smaller along with the lapse of time, so that the bolt with the function of preventing the screw from being screwed is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a bolt with prevent moving back silk function, includes screw rod fixing base and fixed connection the outside screw rod of screw rod fixing base, reciprocal thread groove has been seted up to the outside of screw rod, the threaded connection of the outside of reciprocal thread groove has fastening nut and prevents moving back the screw cap, fastening nut with prevent moving back the screw cap with the screw thread opposite direction of reciprocal thread groove, fastening nut is located the screw rod fixing base with prevent moving back between the screw cap, fastening nut with prevent being provided with between the screw cap and be used for preventing fastening nut with prevent moving back the spacing subassembly of relative pivoted between the screw cap.
The above technical solution further comprises:
the limiting assembly comprises an internal thread cylinder in threaded connection with the outside of the reciprocating thread groove, a circular sliding groove is formed in the outside of the internal thread cylinder, two rotating shafts and two damping sleeves are slidably connected to the inside of the circular sliding groove, and the damping sleeves are slidably connected to the outside of the rotating shafts.
The thread withdrawing preventing screw cap and the inner thread cylinder are in the same thread direction as the reciprocating thread groove.
The fastening nut is close to one side symmetry of an internal thread section of thick bamboo is seted up short rectangular spacing groove, prevent back that the silk nut is close to one side symmetry of an internal thread section of thick bamboo is seted up long rectangular spacing groove.
Two the damping cover is close to the equal fixedly connected with in one side of fastening nut with the short rectangular elasticity gag lever post of short rectangular spacing groove adaptation, two the damping cover is close to the equal fixedly connected with in one side of preventing moving back the screw nut with the long rectangular elasticity gag lever post of long rectangular spacing groove adaptation.
The outer part of the internal thread cylinder is provided with anti-skid grains.
Two the pivot is kept away from the equal fixedly connected with anticreep piece of the inside one end of circular spout.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, use through reciprocal thread groove, fastening nut, prevent moving back the screw nut, spacing subassembly, short rectangular spacing groove and the cooperation of long rectangular spacing groove for opposite direction threaded connection's fastening nut with prevent moving back the screw nut and can be by fixed connection, prevent that fastening nut from with prevent moving back the screw nut and take place relative rotation and influence fastening nut's fastening effect and prevent moving back the screw nut prevent moving back the screw effect, thereby make this bolt have the function of preventing moving back the silk.
2. In the utility model, the anti-skid lines are arranged outside the internal thread cylinder, so that the internal thread cylinder is simpler and more convenient in the screwing process; through the outside fixedly connected with anticreep piece at the pivot, prevent that the damping cover from breaking away from and influencing the use convenience of this bolt from the outside of pivot.
Drawings
Fig. 1 is a schematic view of an overall structure of a bolt with a thread withdrawal prevention function according to the present invention;
fig. 2 is a schematic view of a first split structure of a bolt with a thread withdrawal prevention function according to the present invention;
fig. 3 is a schematic view of a second split structure of the bolt with the anti-thread-back function provided by the present invention;
fig. 4 is a schematic structural diagram of the limiting assembly of the present invention.
In the figure: 1. a screw fixing seat; 2. a screw; 3. a reciprocating thread groove; 4. fastening a nut; 5. a screw back-proof nut; 6. a limiting component; 61. an internal threaded barrel; 62. a circular chute; 63. a rotating shaft; 64. a damping sleeve; 65. a short rectangular elastic limit rod; 66. a long rectangular elastic limit rod; 67. anti-skid lines; 68. an anti-drop block; 7. a short rectangular limiting groove; 8. long rectangular spacing groove.
Detailed Description
The following describes the technical solution of the present invention with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-4, the utility model provides a bolt with anti-back thread function, including screw rod fixing base 1 and the screw rod 2 of fixed connection in the screw rod fixing base 1 outside, reciprocating thread groove 3 has been seted up to the outside of screw rod 2, the threaded connection of the outside of reciprocating thread groove 3 has fastening nut 4 and anti-back thread nut 5, fastening nut 4 and anti-back thread nut 5 are opposite with the screw thread direction of reciprocating thread groove 3, fastening nut 4 is located between screw rod fixing base 1 and anti-back thread nut 5, be provided with between fastening nut 4 and the anti-back thread nut 5 and be used for preventing that fastening nut 4 and anti-back thread nut 5 from taking place relative rotation's spacing subassembly 6;
the limiting assembly 6 comprises an internal thread cylinder 61 which is in threaded connection with the outer part of the reciprocating thread groove 3, the thread direction of the anti-thread-withdrawal nut 5 and the internal thread cylinder 61 is the same as that of the reciprocating thread groove 3, a circular sliding groove 62 is formed in the outer part of the internal thread cylinder 61, two rotating shafts 63 are connected to the inner part of the circular sliding groove 62 in a sliding mode, and damping sleeves 64 are connected to the outer parts of the two rotating shafts 63 in a sliding mode;
short rectangular limiting grooves 7 are symmetrically formed in one side, close to the internal thread barrel 61, of the fastening nut 4, long rectangular limiting grooves 8 are symmetrically formed in one side, close to the internal thread barrel 61, of the anti-withdrawal screw nut 5, short rectangular elastic limiting rods 65 matched with the short rectangular limiting grooves 7 are fixedly connected to one sides, close to the fastening nut 4, of the two damping sleeves 64, and long rectangular elastic limiting rods 66 matched with the long rectangular limiting grooves 8 are fixedly connected to one sides, close to the anti-withdrawal screw nut 5, of the two damping sleeves 64;
through reciprocal thread groove 3, fastening nut 4, prevent moving back screw nut 5, spacing subassembly 6, short rectangular spacing groove 7 and long rectangular spacing groove 8's cooperation use for opposite direction threaded connection's fastening nut 4 and prevent moving back screw nut 5 can by fixed connection.
In the embodiment, the screw rod 2 is firstly inserted into the through holes of the two parts, then the fastening nut 4 is screwed on the outer part of the reciprocating thread groove 3 towards one direction, then the two long rectangular elastic limiting rods 66 are respectively and completely inserted into the long rectangular limiting grooves 8, then the internal thread cylinder 61 and the anti-back thread nut 5 are simultaneously screwed on the outer part of the reciprocating thread groove 3, and the anti-back thread nut 5 is continuously rotated to enable the anti-back thread nut 5 to drive the limiting component 6 to gradually approach the fastening nut 4;
until the screw-withdrawal-preventing nut 5 drives the two short rectangular elastic limiting rods 65 in the limiting assembly 6 to be in contact with the surface of the fastening nut 4, the two rotating shafts 63 are rotated, the two damping sleeves 64 are slid, the end parts of the two short rectangular elastic limiting rods 65 are aligned with the two short rectangular limiting grooves 7 respectively, the two short rectangular elastic limiting rods 65 are held by two hands respectively to prevent the two short rectangular elastic limiting rods 65 from rotating and deviating, the other person rotates the internal thread cylinder 61 to enable the two short rectangular elastic limiting rods 65 to enter the two short rectangular limiting grooves 7, and the two long rectangular elastic limiting rods 66 are not separated from the top walls of the two long rectangular limiting grooves 8 all the time until the two short rectangular elastic limiting rods 65 completely enter the two short rectangular limiting grooves 7;
can make opposite direction threaded connection's fastening nut 4 with prevent moving back a nut 5 can by fixed connection, prevent that fastening nut 4 from taking place relative rotation and influencing fastening nut 4's fastening effect and preventing moving back a nut 5 and prevent moving back a nut 5 and move back a nut effect to make this bolt have the function of preventing moving back a silk.
Example two
As shown in fig. 1 to 4, based on the first embodiment, the anti-slip thread 67 is formed on the outer portion of the internal thread cylinder 61, so that the internal thread cylinder 61 is more convenient to screw, and the anti-slip blocks 68 are fixedly connected to the ends of the two rotating shafts 63 far away from the inner portion of the circular sliding groove 62, so as to prevent the damping sleeve 64 from being separated from the outer portion of the rotating shaft 63.
In the embodiment, the anti-slip threads 67 are formed on the outer part of the internal thread cylinder 61, so that the internal thread cylinder 61 is simpler and more convenient to screw; the anti-drop block 68 is fixedly connected to the outer part of the rotating shaft 63, so that the damping sleeve 64 is prevented from being separated from the outer part of the rotating shaft 63 to influence the use convenience of the bolt.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a bolt with prevent moving back silk function, includes screw rod fixing base (1) and fixed connection screw rod (2) of screw rod fixing base (1) outside, a serial communication port, reciprocal thread groove (3) have been seted up to the outside of screw rod (2), the threaded connection of the outside of reciprocal thread groove (3) has fastening nut (4) and prevents moving back screw cap (5), fastening nut (4) with prevent moving back screw cap (5) with the screw thread opposite direction of reciprocal thread groove (3), fastening nut (4) are located screw rod fixing base (1) with prevent moving back between screw cap (5), fastening nut (4) with prevent being provided with between screw cap (5) and be used for preventing fastening nut (4) with prevent moving back spacing subassembly (6) of relative rotation that takes place between screw cap (5).
2. The bolt with the thread withdrawal prevention function according to claim 1, wherein the limiting assembly (6) comprises an internal thread cylinder (61) in threaded connection with the outside of the reciprocating thread groove (3), a circular sliding groove (62) is formed in the outside of the internal thread cylinder (61), two rotating shafts (63) are slidably connected with the inside of the circular sliding groove (62), and damping sleeves (64) are slidably connected with the outside of the two rotating shafts (63).
3. The bolt with the thread withdrawal prevention function according to claim 2, wherein the thread withdrawal prevention nut (5) and the internally threaded barrel (61) have the same thread direction as the reciprocating thread groove (3).
4. The bolt with the thread withdrawal prevention function according to claim 2, wherein short rectangular limiting grooves (7) are symmetrically formed in one side, close to the internal thread cylinder (61), of the fastening nut (4), and long rectangular limiting grooves (8) are symmetrically formed in one side, close to the internal thread cylinder (61), of the thread withdrawal prevention nut (5).
5. The bolt with the anti-back-threading function according to claim 4, characterized in that one side of each of the two damping sleeves (64) close to the fastening nut (4) is fixedly connected with a short rectangular elastic limiting rod (65) matched with the short rectangular limiting groove (7), and one side of each of the two damping sleeves (64) close to the anti-back-threading nut (5) is fixedly connected with a long rectangular elastic limiting rod (66) matched with the long rectangular limiting groove (8).
6. The screw bolt with the function of preventing the screw from returning according to claim 2 is characterized in that the outer part of the internal thread cylinder (61) is provided with anti-slip threads (67).
7. The bolt with the function of preventing the screw from returning according to claim 2, wherein one end of each of the two rotating shafts (63) far away from the inside of the circular sliding groove (62) is fixedly connected with an anti-falling block (68).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882801.8U CN218817512U (en) | 2022-10-31 | 2022-10-31 | Bolt with anti-withdrawing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882801.8U CN218817512U (en) | 2022-10-31 | 2022-10-31 | Bolt with anti-withdrawing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218817512U true CN218817512U (en) | 2023-04-07 |
Family
ID=87040014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222882801.8U Active CN218817512U (en) | 2022-10-31 | 2022-10-31 | Bolt with anti-withdrawing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218817512U (en) |
-
2022
- 2022-10-31 CN CN202222882801.8U patent/CN218817512U/en active Active
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