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CN-224226513-U - Crane hook limiting safety device

CN224226513UCN 224226513 UCN224226513 UCN 224226513UCN-224226513-U

Abstract

The utility model relates to a crane hook limiting safety device, which belongs to the technical field of hook limiting safety devices and comprises a fixed rod, wherein a connecting rope is fixed at the bottom end of the fixed rod, a crane hook body is fixed at the bottom end of the connecting rope, a hoisting rope is fixed at the top end of the fixed rod, a safety mechanism is arranged on the outer side of the fixed rod, and an anti-falling assembly is arranged on the right side wall of an inner cavity of the crane hook body. This spacing safety device of hoist lifting hook, more accurately measure safe distance, when not using ultrasonic wave distance controller, can drive the connecting plate through starting electric putter and overturn downwards, through ultrasonic wave distance controller's real-time distance detection, can effectively avoid the lifting hook to collide with object or ground around in handling process to greatly reduced incident's risk, thereby can improve production operation's security and efficiency, thereby realize lasting improvement safety in production's target.

Inventors

  • ZHAO YUSHENG
  • Gan de

Assignees

  • 重庆永航钢铁集团有限公司

Dates

Publication Date
20260512
Application Date
20250619

Claims (8)

  1. 1. The crane hook limiting safety device comprises a fixed rod (1) and is characterized in that a connecting rope (2) is fixed at the bottom end of the fixed rod (1), a crane hook body (3) is fixed at the bottom end of the connecting rope (2), a hoisting rope (4) is fixed at the top end of the fixed rod (1), a safety mechanism (5) is arranged on the outer side of the fixed rod (1), and an anti-falling component (6) is arranged on the right side wall of an inner cavity of the crane hook body (3); The safety mechanism (5) comprises a fixed cylinder (501) which is rotationally connected to the outer side of a fixed rod (1) through a bearing, a first driving wheel (502) is fixed to the outer side of the fixed cylinder (501), a mounting plate (503) is fixed to the right side of the fixed rod (1), a motor (504) is fixed to the lower surface of the mounting plate (503), a second driving wheel (505) is fixed to the outer side of an output shaft of the motor (504), the first driving wheel (502) and the second driving wheel (505) are connected through belt transmission, a connecting plate (506) is hinged to the left side of the fixed cylinder (501) through a hinge seat, an ultrasonic distance controller (507) is fixed to the left side of the lower surface of the connecting plate (506), an electric push rod (508) is hinged to the left side of the output shaft through the hinge seat, and the upper surface of the connecting plate (506) is hinged to the outer side of the electric push rod (508).
  2. 2. The crane hook limiting safety device according to claim 1, wherein the safety mechanism (5) further comprises a limiting frame (509) fixed on the left side of the fixed cylinder (501), and the bottom end of the limiting frame (509) is attached to the upper surface of the connecting plate (506).
  3. 3. The crane hook limiting safety device according to claim 1, wherein the anti-falling assembly (6) comprises a threaded groove (601) formed in the right side wall of the inner cavity of the crane hook body (3), a threaded hole (602) is formed in the left side of the crane hook body (3) in a penetrating mode, a threaded rod (603) is connected with the threaded hole (602) and the threads of the threaded groove (601) in a threaded mode, and a handle (604) is fixed to the left side of the threaded rod (603).
  4. 4. The crane hook limiting safety device according to claim 3, wherein the anti-falling assembly (6) further comprises a first fixing half ring fixed on the right side of the crane hook body (3), a safety rope is fixed on the outer side of the first fixing half ring, a second fixing half ring is fixed on the right side of the fixing rod (1), and one end, far away from the first fixing half ring, of the safety rope is fixed on the outer side of the second fixing half ring.
  5. 5. The crane hook limiting safety device according to claim 1, wherein a baffle is connected to the right side wall of the inner cavity of the crane hook body (3) through torsion springs in a rotating mode.
  6. 6. The crane hook limiting safety device according to claim 4, wherein the connecting rope (2), the hoisting rope (4) and the safety rope are steel wire ropes.
  7. 7. A crane hook limit safety device according to claim 1, wherein the connecting rope (2) is located on the longitudinal center axis of the fixing rod (1).
  8. 8. The crane hook limit safety device according to claim 1, wherein the fixed cylinder (501) moves circumferentially on the outer side of the fixed rod (1).

Description

Crane hook limiting safety device Technical Field The utility model relates to the technical field of lifting hook limiting safety devices, in particular to a lifting hook limiting safety device of a crane. Background The crane is a hoisting machine for vertically lifting and horizontally carrying heavy objects in a moving range, namely corresponding mechanisms of taking, moving, unloading and the like in one working cycle work alternately, a crane limiting mechanism device is an indispensable important component part in the field of crane safety production, and an existing lifting hook anti-falling safety device is a current safety limiting device, is influenced by environment, operation, maintenance and the like in the overhauling or operating process, causes limiting failure or faults and can cause unacceptable safety production accidents. For example, publication number CN221500347U discloses a crane hook limiting device, which comprises a supporting frame, wherein a lifting component and a rolling component are connected to the supporting frame, the lifting component is connected with the rolling component, a limiting component is arranged at the moving end of the lifting component, a balance component for reducing the shaking amplitude is connected to the limiting component, the rolling component is connected with the balance component, the lifting component comprises a driving mechanism, the output end of the driving mechanism is connected with a traction rope, the traction rope bypasses the surface of a pulley, the pulley is rotationally arranged in the sleeve, two ends of the traction rope slide through the top of the sleeve, a hook is arranged at the bottom of the sleeve, the limiting component comprises a bottom plate, a chute is arranged at the top of the bottom plate, a first clamping plate is slidably arranged in the chute, a second clamping plate is fixedly arranged at the top of the bottom plate, the sleeve and the hook are limited through the limiting component, and the shaking amplitude is reduced. In the above patent, though the external member and the hook are limited by the limiting component, the shaking amplitude is reduced, but in the prior art, the lifting device is lifted or lifted to a lower height, and the distance of the height of the lifting hook is observed by eyes, so that the goods or the device can not be placed in place, and the repeated operation can possibly cause injury accidents when the accurate lifting work is required. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a crane lifting hook limiting safety device, which has the advantages of detecting the lifting or descending safety distance of a lifting hook, ensuring the normal lifting of cargoes, eliminating the potential safety hazard in the production operation process and the like, solving the problems that in the prior art, the lifting or descending height of lifting equipment is observed by eyes, and particularly, when the accurate lifting work is required, cargoes or equipment can not be placed in place, and the repeated operation can cause injury accidents. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a spacing safety device of hoist lifting hook, includes the dead lever, the bottom mounting of dead lever has the connecting rope, the bottom mounting of connecting rope has the hoist lifting hook body, the top of dead lever is fixed with the hoist and mount rope, the outside of dead lever is equipped with safety mechanism, the right side wall of hoist lifting hook body inner chamber is equipped with anticreep subassembly; The safety mechanism comprises a fixed cylinder which is rotationally connected to the outer side of a fixed rod through a bearing, a first driving wheel is fixed to the outer side of the fixed cylinder, a mounting plate is fixed to the right side of the fixed rod, a motor is fixed to the lower surface of the mounting plate, a second driving wheel is fixed to the outer side of an output shaft of the motor, the first driving wheel and the second driving wheel are connected through belt transmission, a connecting plate is hinged to the left side of the fixed cylinder through a hinging seat, an ultrasonic distance controller is fixed to the left side of the lower surface of the connecting plate, an electric push rod is hinged to the left side of the fixed cylinder through a hinging seat, and the outer side of the output shaft of the electric push rod is hinged to the upper surface of the connecting plate through the hinging seat. Further, the safety mechanism further comprises a limiting frame fixed on the left side of the fixed cylinder, and the bottom end of the limiting frame is attached to the upper surface of the connecting plate. Further, the anticreep subassembly is including seting up the thread groove at hoist lifting hook body inner chamber right side