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CN-224214548-U - Sectional type bolt fastening device with self-locking function

CN224214548UCN 224214548 UCN224214548 UCN 224214548UCN-224214548-U

Abstract

The utility model discloses a sectional type bolt fastening device with a self-locking function, which is applied to the field of bolt fastening devices and comprises a bolt head, wherein a connecting rod is integrally formed on the surface of the bolt head, and a screw is arranged at one end of the connecting rod; according to the utility model, the clamping block is clamped with the ratchet wheel under the action of the spring, so that the ratchet wheel rotates unidirectionally, after the nut is fastened in place, the clamping block is clamped with the ratchet wheel, the nut is prevented from rotating reversely, the purpose of self-locking can be achieved, the stability of a fastener is ensured, and the safety is improved.

Inventors

  • SHI ZENGLE
  • ZHU JIANMIN
  • HU JUNFENG

Assignees

  • 咸阳聚力石油机械制造有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (8)

  1. 1. The utility model provides a take self-locking function's sectional type bolt fastener, includes bolt head (1), a serial communication port, the surface integrated into one piece of bolt head (1) has connecting rod (2), the one end of connecting rod (2) is provided with screw rod (3), first spout (4) have been seted up on the surface of screw rod (3), the inner wall sliding connection of first spout (4) has first slider (5), the surface bolt of first slider (5) has ratchet (6), the surface threaded connection of screw rod (3) has nut (7), and the inner wall swivelling joint of ratchet (6) and nut (7), the inner wall of nut (7) is provided with joint piece (8), and joint piece (8) and ratchet (6) looks adaptation, set up telescopic machanism (9) between the one end of joint piece (8) and screw rod (3), the inner wall threaded connection of nut (7) has first bolt (10).
  2. 2. The sectional type bolt fastening device with the self-locking function according to claim 1, wherein a plug-in rod (11) is integrally formed at one end of the screw rod (3), a plug-in hole (12) is formed at one end of the connecting rod (2), the plug-in hole (12) is in sliding sleeve connection with the plug-in rod (11), and second bolts (13) are in threaded connection with the inner walls of the connecting rod (2) and the plug-in rod (11).
  3. 3. The segmented bolt fastening device with the self-locking function according to claim 1, wherein the telescopic mechanism (9) comprises a fixed block (14), the fixed block (14) is slidably connected with the inner wall of the nut (7), the fixed block (14) is rotatably connected with one end of the first bolt (10), the inner wall of the fixed block (14) is slidably connected with the clamping block (8), and a spring (15) is arranged between the clamping block (8) and the fixed block (14).
  4. 4. The segmented bolt fastening device with self-locking function according to claim 2, wherein the first bolt (10) and the second bolt (13) are hexagon socket head cap bolts.
  5. 5. A segmented bolt fastening device with self-locking function according to claim 3, characterized in that the surface of the fixed block (14) is bolted with a second sliding block (16), the surface of the second sliding block (16) is slidably connected with a second sliding groove (17), and the second sliding groove (17) is opened on the inner wall of the nut (7).
  6. 6. The segmented bolt fastening device with self-locking function according to claim 1, characterized in that the surface of the bolt head (1) is provided with internal hexagonal holes (18).
  7. 7. The segmented bolt fastening device with the self-locking function according to claim 1, wherein the number of the first sliding grooves (4) is four, and the first sliding grooves (4) are uniformly distributed on the surface of the screw (3).
  8. 8. The segmented bolt fastening device with self-locking function according to claim 2, wherein the insertion hole (12) and the insertion rod (11) are square.

Description

Sectional type bolt fastening device with self-locking function Technical Field The utility model relates to the field of bolt fastening devices, in particular to a sectional type bolt fastening device with a self-locking function. Background Through searching Chinese patent, the bulletin number is CN210686582U, a bolt fastener of an anti-slip wire comprises a screw rod and a second connecting groove, a first screw cap is fixed at the top of the screw rod, the first connecting groove is formed in the top of the first screw cap, a rotating rod is embedded in the first connecting groove, a rotating groove is formed in one side of the first connecting groove, a rotating block is fixed on one side of the rotating rod close to the rotating groove, a sliding groove is formed in one side of the rotating groove far away from the first connecting groove, a sliding block is embedded in the sliding groove, a second screw cap is fixed on one side of the sliding block, and the second connecting groove close to the first screw cap is formed in the second screw cap. The bolt fastener of the anti-slip wire is provided with the second nut, the sliding wire can appear on the hexagonal side in long-time use so as to pull the second nut to detach, and the second nut can rotate through the hexagonal side of the first nut after being detached, so that the hexagonal side of the first nut is smaller than the hexagonal side of the second nut in one model, and the second nut can be conveniently used continuously through the first nut after sliding the wire. The existing bolt fastening device does not have a self-locking function, the common bolt fastening device is used for fastening parts by matching with nuts, in the use process, the nuts and bolts are easily affected by the outside, loosening is caused, connection is unstable, the installation performance is affected, the length cannot be adjusted, the length of the common bolt fastening device is fixed, when workpieces with different thicknesses are fastened, the whole bolt fastening device needs to be replaced, the use cost is increased, the practicability and the applicability are reduced, and in order to solve the problems, we propose a sectional bolt fastening device with the self-locking function. Disclosure of utility model The utility model aims to provide a sectional type bolt fastening device with a self-locking function, which has the advantages of self-locking function and adjustable length. The technical aim of the utility model is achieved through the following technical scheme that the sectional type bolt fastening device with the self-locking function comprises a bolt head, a connecting rod is integrally formed on the surface of the bolt head, a screw rod is arranged at one end of the connecting rod, a first sliding groove is formed on the surface of the screw rod, a first sliding block is connected with the inner wall of the first sliding groove in a sliding mode, a ratchet wheel is bolted on the surface of the first sliding block, a nut is connected with the surface of the screw rod in a threaded mode, the ratchet wheel is rotationally connected with the inner wall of the nut, a clamping block is arranged on the inner wall of the nut and is matched with the ratchet wheel, a telescopic mechanism is arranged between the clamping block and one end of the screw rod, and the inner wall of the nut is in threaded connection with the first bolt. By adopting the technical scheme, the ratchet wheel is clamped with the ratchet wheel under the action of the spring through the clamping block, so that the ratchet wheel is unidirectionally rotated, the nut is unidirectionally rotated through the unidirectional rotation of the ratchet wheel, and after the nut is fastened in place, the clamping block is clamped with the ratchet wheel to prevent the nut from reversely rotating, so that the purpose of self-locking can be achieved, the stability of the fastener is ensured, and the safety is improved. The utility model is further characterized in that one end of the screw rod is integrally formed with a plug-in rod, one end of the connecting rod is provided with a plug-in hole, the plug-in hole is in sliding sleeve joint with the plug-in rod, and the connecting rod and the inner wall of the plug-in rod are in threaded connection with a second bolt. By adopting the technical scheme, the second bolt is loosened by using the tool, the inserting connection rod is pulled out from the inserting hole, then the connecting rod with the required length is inserted on the inserting connection rod, the second bolt is assembled and screwed, the purpose of adjusting the length can be achieved by fixing the second bolt, the use cost is reduced, and the practicability and the applicability are improved. The telescopic mechanism further comprises a fixed block, wherein the fixed block is in sliding connection with the inner wall of the nut, the fixed block is in rotary connection with one end of the