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CN-224229060-U - Anti-seismic and anti-disengaging bolt standard part

CN224229060UCN 224229060 UCN224229060 UCN 224229060UCN-224229060-U

Abstract

The utility model relates to the technical field of bolts, and particularly discloses an anti-seismic and anti-disengaging bolt standard component, which comprises a bolt main body, wherein a through hole is formed in an inner cavity of the bolt main body, an anti-disengaging assembly is arranged in the inner cavity of the through hole, the anti-disengaging assembly comprises a conical head, the conical head is positioned at the bottom of the bolt main body, a fixing rod is arranged at the top of the conical head and positioned in the inner cavity of the through hole, a push plate is fixedly connected to the top of the fixing rod, a sliding block is arranged on the surface of the push plate, and a sliding groove matched with the sliding block is formed in the inner cavity of the through hole. According to the utility model, the bolt main body is inserted into the mounting hole of the to-be-connected piece, the screw is clamped into the hexagonal groove at the top of the turntable by the tool to rotate the screw, the screw is lifted in the fixed screw sleeve through the screw pair, the pressing plate is driven to compress the spring, the pretightening force is regulated according to the vibration intensity requirement, when the external vibration causes loosening of the connecting piece, the bolt main body has a tendency of upward movement due to the tensile force, and the conical head is blocked by the base material.

Inventors

  • ZHANG GUANGRONG
  • ZHANG YINGXIAO

Assignees

  • 温州市申南紧固件有限公司

Dates

Publication Date
20260512
Application Date
20250628

Claims (6)

  1. 1. The utility model provides a shock-resistant anti-disengaging bolt standard part, includes bolt main part (1), its characterized in that, through-hole (2) have been seted up to the inner chamber of bolt main part (1), the inner chamber of through-hole (2) is equipped with anti-disengaging assembly (3), anti-disengaging assembly (3) include conical head (301), and conical head (301) are located the bottom of bolt main part (1), the top of conical head (301) is equipped with dead lever (302), and dead lever (302) are located the inner chamber of through-hole (2), the top fixedly connected with push pedal (3010) of dead lever (302), the surface of push pedal (3010) is equipped with slider (303), spout (4) with slider (303) looks adaptation have been seted up to the inner chamber of through-hole (2), the top fixedly connected with spring (309) of push pedal (3010), the top fixedly connected with clamp plate (304) of spring (309), the top of clamp plate (304) contacts there is screw (306), the surface thread sleeve of screw (306) is equipped with swivel (305), and the inner wall (307) of swivel plate (2).
  2. 2. A shock and break away bolt standard according to claim 1, characterized in that the conical head (301) is conical and has a cone angle of 45 degrees to 60 degrees.
  3. 3. The anti-seismic and anti-disengagement bolt standard according to claim 1, wherein the spring (309) is a compression spring (309) made of stainless steel, and the pre-tightening force of the spring (309) is adjustable.
  4. 4. The anti-seismic and anti-disengagement bolt standard component according to claim 1 is characterized in that the number of the sliding grooves (4) and the sliding blocks (303) is four, and the sliding grooves and the sliding blocks are equidistantly distributed on the through holes (2) and the pushing plates (3010).
  5. 5. The anti-seismic and anti-disengagement bolt standard according to claim 1, wherein the top of the turntable (307) is provided with a hexagonal groove (308), and the hexagonal groove (308) is arranged in the center of the top of the turntable (307).
  6. 6. An earthquake-resistant and detachment-resistant bolt standard according to claim 1, characterized in that the outer surface of the bolt body (1) is coated with a polytetrafluoroethylene anti-corrosion coating.

Description

Anti-seismic and anti-disengaging bolt standard part Technical Field The utility model relates to the technical field of bolts, in particular to a shock-resistant and anti-disengaging bolt standard part. Background Bolts are common mechanical parts and are used with cylindrical threaded fasteners of nuts. The fastening piece consists of a head part and a screw rod, is used for fastening and connecting two parts with through holes to form a bolt connection, and the bolt connection belongs to detachable connection. When fixing the article, need use the bolt to fix, but the bolt does not possess anti-drop function when using, and then leads to the bolt when using, and the bolt receives external vibrations, and the condition that the bolt breaks away from appears easily. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the anti-seismic and anti-disengaging bolt standard part, which has the advantages of anti-disengaging and the like for bolts, and solves the problem that the bolts are easy to disengage when being subjected to external vibration. The utility model relates to an anti-seismic and anti-disengaging bolt standard component, which comprises a bolt main body, wherein a through hole is formed in an inner cavity of the bolt main body, an anti-disengaging component is arranged in the inner cavity of the through hole, the anti-disengaging component comprises a cone head, the cone head is positioned at the bottom of the bolt main body, a fixing rod is arranged at the top of the cone head and positioned in the inner cavity of the through hole, a push plate is fixedly connected to the top of the fixing rod, a sliding block is arranged on the surface of the push plate, a sliding groove matched with the sliding block is formed in the inner cavity of the through hole, a spring is fixedly connected to the top of the push plate, a pressing plate is fixedly connected to the top of the spring, a screw rod is contacted above the pressing plate, a screw sleeve is sleeved on the surface of the screw rod, the surface of the screw sleeve is fixedly connected with the inner wall of the through hole, and a turntable is fixedly connected to the top of the screw rod. According to the utility model, the bolt main body is inserted into the mounting hole of the to-be-connected piece, the screw is clamped into the six-sided groove at the top of the turntable by the tool to rotate the screw, the screw is lifted in the fixed screw sleeve through the screw pair, the pressing plate compression spring is driven, the pretightening force is regulated according to the vibration intensity requirement, when the external vibration causes loosening of the connecting piece, the bolt main body is stressed to have an upward moving trend, the conical head is blocked by the base material, the conical head moves downwards relative to the bolt main body, the pushing plate on the fixed rod is pushed upwards, the pushing plate moves vertically along four groups of symmetrical sliding grooves, the spring is further compressed, the conical head is tapered by 45-60 DEG in continuous vibration, the wedging depth and resistance balance are optimized, the slipping or the base material damage is avoided, the four groups of sliding blocks/sliding grooves ensure the pushing plate to lift without offset, the assembly is prevented from being blocked, the polytetrafluoroethylene coating blocks corrosive media in vibration friction, and the flexibility of moving parts such as the conical head and the sliding blocks is maintained. According to the anti-seismic anti-disengaging bolt standard component, the conical head is conical, the conical angle is 45-60 degrees, the 45-60 degrees of insertion resistance and the anchoring depth of the conical head are balanced, the base material is rapidly wedged during vibration, and the defect that the base material breaks down due to the fact that the conical angle is smaller than 45 degrees or the anchoring force of the conical angle is larger than 60 degrees is avoided. According to the anti-seismic and anti-disengaging bolt standard component, the spring is a compression spring made of stainless steel, the pretightening force of the spring is adjustable, the stainless steel is used for resisting vibration in a corrosion-resistant environment, the anti-seismic service life is prolonged, the pretightening force is adjustable, the bolt is enabled to adapt to a high-frequency/low-frequency vibration scene, and the universality is improved. According to the anti-seismic anti-disengaging bolt standard component, the number of the sliding grooves and the sliding blocks is four, the sliding grooves and the sliding blocks are distributed on the through holes and the pushing plates at equal intervals, the unbalanced loading risk of the pushing plates is eliminated through the symmetrical four groups of guide structures, the stability of vertical movement in vibration is ensured, and the