CN203545423U

CN203545423U - Shackle with anti-rotation pin shaft thread structure

Info

Publication number: CN203545423U
Application number: CN201320602019.4U
Authority: CN
Inventors: 施勇
Original assignee: Wuxi Xinhua Lifting Tools Co Ltd
Current assignee: Wuxi Xinhua Lifting Tools Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-04-16
Anticipated expiration: 2023-09-27

Abstract

The utility model relates to a shackle with an anti-rotation pin shaft thread structure. The shackle comprises a shackle body and a pin shaft, wherein the shackle body refers to a U-shaped ring, ball heads are arranged at the two ends of the shackle body, pin holes are formed in the ball heads, a thread is processed on the inner wall of one pin hole, and the inner wall of the other pin hole is smooth; the pin shaft is inserted into the pin hole with the smooth inner wall and then is in threaded connection to the pin hole with the thread. The shackle is characterized in that an arc-shaped groove is formed in the outer side surface of the ball head in which the pin hole with the smooth inner wall is formed; a detachable clamping buckle is mounted at the head end of the pin shaft; when the pin shaft is mounted in the pin hole in the shackle body, the clamping buckle is mounted at the head end of the pin shaft, and a clamping part of the clamping buckle is correspondingly clamped in the arc-shaped groove in the outer side surface of the ball head to limit the rotation of the pin shaft. The shackle is ingenious in structure, reasonable in design, convenient to assemble and firm to connect; the looseness of the thread caused by the rotation of the pin shaft can be prevented, the falling of the pin shaft is avoided, and the safety of the shackle is improved.

Description

There is the shackle of bearing pin screw thread anti-rotation structure

Technical field

The utility model relates to a kind of link, and specifically a kind of shackle with bearing pin screw thread anti-rotation structure, belongs to hoisting and handling equipment technical field.

Background technology

Shackle is instrument common on hanging device, conventionally and hanging belt, rope rig, chain etc. be used in conjunction with.Shackle of the prior art arranges pin-and-hole by clevis eye two ends conventionally, and pin-and-hole connects a bearing pin and forms.The top of clevis eye and pin are respectively as a coupling end, for connecting miscellaneous part.Such shackle often occurs that bearing pin rotates in actual use, causes thread looseness, thereby may cause shackle bearing pin to come off, and causes safety misadventure.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of shackle with bearing pin screw thread anti-rotation structure is provided, its structure is ingenious, reasonable in design, easy to assembly, be connected firmly, can prevent that bearing pin from rotating and the thread looseness that causes, avoid bearing pin to come off, improve shackle safety.

The technical scheme providing according to the utility model: there is the shackle of bearing pin screw thread anti-rotation structure, comprise shackle body and bearing pin, described shackle body is a clevis eye, two ends at shackle body are provided with bulb, in bulb, be processed with pin-and-hole, one of them pin-and-hole inwall is processed with screw thread, another pin-and-hole inner wall smooth; Described bearing pin inserts rear thread by inner wall smooth pin-and-hole and is connected in threaded pin-and-hole; It is characterized in that: on the bulb lateral surface at described inner wall smooth pin-and-hole place, be processed with arc groove, described bearing pin head end is provided with detouchable buckle, in the time of within bearing pin packs the pin-and-hole on shackle body into, buckle is arranged on bearing pin head end, the clamp correspondence of buckle snaps in the arc groove on bulb lateral surface, and restriction bearing pin rotates.

As further improvement of the utility model, the arc groove on the bulb lateral surface at described inner wall smooth pin-and-hole place has two, these two arc grooves be 180 ° symmetrical; Clamp on described buckle also has two, two clamps be also 180 ° symmetrical.

As further improvement of the utility model, described bearing pin head end end face is provided with one and radially connects groove, and described buckle is provided with a fixed strip, and described fixed strip is installed on and radially connects in groove and be bolted fixing for correspondence.

compared with prior art, advantage is the utility model:the utility model structure is ingenious, reasonable in design, easy to assembly, is connected firmly, and can prevent that bearing pin from rotating and the thread looseness that causes, avoids bearing pin to come off, and improves shackle safety.

Accompanying drawing explanation

Fig. 1 is the structural front view that the utility model embodiment has the shackle of bearing pin screw thread anti-rotation structure.

Fig. 2 is the structure left view that the utility model embodiment has the shackle of bearing pin screw thread anti-rotation structure.

Fig. 3 is the structure upward view that the utility model embodiment has the shackle of bearing pin screw thread anti-rotation structure.

Fig. 4 is the three-dimensional structure diagram that the utility model embodiment has the shackle of bearing pin screw thread anti-rotation structure.

The specific embodiment

Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.

As shown in Fig. 1 ~ Fig. 4: the shackle with bearing pin screw thread anti-rotation structure in embodiment mainly comprises shackle body 1 and bearing pin 2, described shackle body 1 is a clevis eye, at the two ends of shackle body 1, be provided with bulb 3, in bulb 3, be processed with pin-and-hole, one of them pin-and-hole inwall is processed with screw thread, another pin-and-hole inner wall smooth; Described bearing pin 2 inserts rear thread by inner wall smooth pin-and-hole and is connected in threaded pin-and-hole; On bulb 3 lateral surfaces at described inner wall smooth pin-and-hole place, be processed with arc groove 5, described bearing pin 2 head ends are provided with detouchable buckle 4, in the time of within bearing pin 2 packs the pin-and-hole on shackle body 1 into, buckle 4 is arranged on bearing pin 2 head ends, clamp 6 correspondences of buckle 4 snap in the arc groove 5 on bulb 3 lateral surfaces, and restriction bearing pin 2 rotates.

As shown in Fig. 1 ~ Fig. 4, in the utility model embodiment, the arc groove 5 on bulb 3 lateral surfaces at described inner wall smooth pin-and-hole place has two, these two arc grooves 5 be 180 ° symmetrical; Clamp 6 on described buckle 4 also has two, two clamps 6 be also 180 ° symmetrical.

As shown in Fig. 1 ~ Fig. 4, in the utility model embodiment, described bearing pin 2 head end end faces are provided with one and radially connect groove, and described buckle 4 is provided with a fixed strip, and described fixed strip is installed on and radially connects in groove and be connected and fixed by bolt 7 for correspondence.

During concrete application, first bearing pin 2 is threaded and is tightened with the pin-and-hole on shackle body 1, then the fixed strip correspondence on buckle 4 is installed in the radially perforation groove of bearing pin 2 head ends fixing with socket bolt 7, clamp 6 correspondences of buckle 4 snap in the arc groove 5 on bulb 3 lateral surfaces, prevent from getting loose because bearing pin 2 rotates the screw thread causing.The utility model is compared with common negative thread shackle, can prevent from unloading being buckled in the thread looseness causing because of various factors in routine use process, prevents that bearing pin 2 from getting loose, and safety factor is high, makes simply, and cost is relatively not high, and client is more acceptant.

Claims

1. there is the shackle of bearing pin screw thread anti-rotation structure, comprise shackle body (1) and bearing pin (2), described shackle body (1) is a clevis eye, at the two ends of shackle body (1), be provided with bulb (3), bulb is processed with pin-and-hole in (3), one of them pin-and-hole inwall is processed with screw thread, another pin-and-hole inner wall smooth; Described bearing pin (2) inserts rear thread by inner wall smooth pin-and-hole and is connected in threaded pin-and-hole; It is characterized in that: on bulb (3) lateral surface at described inner wall smooth pin-and-hole place, be processed with arc groove (5), described bearing pin (2) head end is provided with detouchable buckle (4), in the time of within bearing pin (2) packs the pin-and-hole on shackle body (1) into, buckle (4) is arranged on bearing pin (2) head end, clamp (6) correspondence of buckle (4) snaps in the arc groove (5) on bulb (3) lateral surface, and restriction bearing pin (2) rotates.

2. the shackle with bearing pin screw thread anti-rotation structure as claimed in claim 1, is characterized in that: the arc groove (5) on bulb (3) lateral surface at described inner wall smooth pin-and-hole place has two, these two arc grooves (5) be 180 ° symmetrical; Clamp (6) on described buckle (4) also has two, two clamps (6) be also 180 ° symmetrical.

3. the shackle with bearing pin screw thread anti-rotation structure as claimed in claim 1, it is characterized in that: described bearing pin (2) head end end face is provided with one and radially connects groove, described buckle (4) is provided with a fixed strip, and described fixed strip is installed on and radially connects in groove and be connected and fixed by bolt (7) for correspondence.