CN104179887A

CN104179887A - Shackle

Info

Publication number: CN104179887A
Application number: CN201410404544.4A
Authority: CN
Inventors: 蔡明喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-16
Filing date: 2014-08-16
Publication date: 2014-12-03

Abstract

The invention discloses a shackle. The shackle comprises a buckle body and a pin shaft, wherein the buckle body is U-shaped or arch shaped; a through hole is formed in one end part of the buckle body; a threaded hole is formed in the other end part of the buckle body; the through hole and the threaded hole share a coaxial line; a circular shoulder is arranged at the back end of the pin shaft; external threads matched with the threaded hole are formed in the front end of the pin shaft; a circular hole is fixed on the rear end surface of the pin shaft; the front end of the pin shaft penetrates through the through hole and is connected in the interior of the threaded hole in a screwing manner; a spacing plate is arranged on the pin shaft and in a position between the two end parts of the buckle body and near the external threads. According to the shackle provided by the invention, due to the resistance of the spacing plate, the front end of the pin shaft cannot penetrate backwards through the through hole; after the pin shaft is sent back from the interior of the threaded hole, the pin shaft is prevented from falling out from the through hole of the buckle body under the action of an external force. Therefore, an operator does not need to absolutely withdraw the pin shaft and place the pin shaft in a due place; the release and screwing of the pin shaft can be quite convenient when a repeated hoisting of heavy objects is carried out. The operation is facilitated and the time is further reduced; moreover, the potential safety hazard that the pin shaft falls off and crashes working personnel and equipment on the ground is eliminated.

Description

A kind of shackle

Technical field

The present invention relates to rigging, relate in particular to a kind of shackle.

Background technique

Shackle is instrument common on hanging device, conventionally and hanging belt, rope rig, chain etc. be used in conjunction with.As shown in Figure 1, the shackle of existing use comprises button 1 and bearing pin 2, an end of button 1 has through hole 11, another end has tapped hole 12, through hole 11 and tapped hole 12 coaxial lines, the rear end of bearing pin 2 is provided with shoulder 21, front end is provided with the outside thread matching with tapped hole 12, on the ear end face of bearing pin 2, be fixed with eye 3, the front end of bearing pin 2 is screwed in tapped hole 12 through through hole 11.

Use the shackle of said structure that weight is risen to after eminence, operator often can not exit to take off weight by bearing pin completely, bring back to ground because also need to lift some weights in shackle in the time falling shackle, if bearing pin is exited completely, need first bearing pin to be well placed and then to be reinstalled, inconvenient in the extreme, therefore operator just moves back bearing pin pine about half and makes shackle expose one section of breach, article so both can be taken off, again convenient installation again.But in aforesaid operations process, there is following problem: after bearing pin pine moves back about half, bearing pin is easy to from the through hole of button, come off under the effect of external force (touch because of carelessness, the concussion of chain rope etc.), inconvenient and lose time so all the better; Get back to ground even if do not need to lift weight in the time falling shackle, operator also must screw bearing pin and button, otherwise bearing pin is easy to come off and pound earthward from the through hole of button, thereby probably injures staff and the equipment on ground by a crashing object, brings potential safety hazard; After bearing pin exits completely, must properly place, otherwise easily lose, cause unnecessary economic loss.

Summary of the invention

The shackle that technical problem to be solved by this invention is to provide a kind of keeping easy to use, easy, can effectively eliminates safe hidden trouble.

In order to solve the problems of the technologies described above, the present invention adopts following technological scheme: a kind of shackle, comprise button and bearing pin, button is U-shaped or bow type, an end of button has through hole, another end has tapped hole, through hole and tapped hole coaxial line, the rear end of bearing pin is provided with shoulder, front end is provided with the outside thread matching with tapped hole, on the ear end face of bearing pin, be fixed with eye, the front end of bearing pin is screwed in tapped hole through through hole, on bearing pin, between two ends of button and near externally threaded position, is provided with limiting board.

As shown from the above technical solution, due to stopping of limiting board, the front end of bearing pin cannot pass through hole backward, therefore when bearing pin is stepped back from pine in tapped hole, bearing pin also can not come off under the effect of external force from the through hole of button, and operator will not exit and be well placed by bearing pin completely like this, just can be easily in the time repeating hoisting heavy pine move back and screw bearing pin, so both easy-to-operaies and saving time, and eliminated that bearing pin comes off and the potential safety hazard that injures ground handling personnel and equipment by a crashing object; Because bearing pin is connected with button all the time, so this shackle can not produce the problem that bearing pin is lost, easily take care of.To sum up, this shackle has advantages of easy to use, easy keeping, can effectively eliminate safe hidden trouble.

Preferably, described limiting board is the ring-shaped step that is fixed on corresponding position on bearing pin.Because ring-shaped step is fixed on bearing pin, it can bear larger impact force, and difficult drop-off.

As improvement of the present invention, described limiting board is jump ring or rubber ring, and on bearing pin, corresponding position is provided with annular groove, and limiting board is sleeved in this annular groove.Jump ring and rubber ring are conventional component, its source is wide, cost is low, easily installation and removal, in the time coordinating with thicker chain or wire rope, jump ring and rubber ring can be pulled down, bearing pin can exit completely and not affect it and use normally, and most jump ring and rubber ring can be reused.

As a further improvement on the present invention, be fixed with shaft-like handle on described eye, shaft-like handle is perpendicular to bearing pin.In the time of rotary pin shaft, the moment that eye produces is less, needs larger power just can screw bearing pin, if desired also need be by instrument, and the shaft-like handle increasing can increase moment, operator get final product light pine with hand and move back and screw bearing pin like this.

Brief description of the drawings

Fig. 1 is the structural representation of existing shackle.

Fig. 2 is the structural representation of the embodiment of the present invention one.

Fig. 3 is the structural representation of the embodiment of the present invention two.

Fig. 4 is the structural representation of the embodiment of the present invention three.

Fig. 5 is the structural representation of the part beyond the embodiment of the present invention three buttons and rubber ring.

Fig. 6 is the structural representation of the embodiment of the present invention four.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

Embodiment one

As shown in Figure 2, a kind of shackle that the embodiment of the present invention one provides comprises button 1 and bearing pin 2, button 1 is U-shaped, an end of button 1 has through hole 11, another end has tapped hole 12, through hole 11 and tapped hole 12 coaxial lines, the rear end of bearing pin 2 is provided with shoulder 21, front end is provided with the outside thread matching with tapped hole 12, on the ear end face of bearing pin 2, be fixed with eye 3, the front end of bearing pin 2 is screwed in tapped hole 12 through through hole 11, on bearing pin 2, between two ends of button 1 and near externally threaded position, be fixed with ring-shaped step 4, on eye 3, be fixed with shaft-like handle 5, shaft-like handle 5 is perpendicular with bearing pin 2.

Embodiment two

As shown in Figure 3, a kind of shackle that the embodiment of the present invention two provides comprises button 1 and bearing pin 2, button 1 is U-shaped, an end of button 1 has through hole 11, another end has tapped hole 12, through hole 11 and tapped hole 12 coaxial lines, the rear end of bearing pin 2 is provided with shoulder 21, front end is provided with the outside thread matching with tapped hole 12, on the ear end face of bearing pin 2, be fixed with eye 3, on eye 3, be fixed with shaft-like handle 5, shaft-like handle 5 is perpendicular with bearing pin 2, the front end of bearing pin 2 is screwed in tapped hole 12 through through hole 11, on bearing pin 2, between two ends of button 1 and near externally threaded position, be provided with annular groove 22, in annular groove 22, be set with jump ring 6.

Embodiment three

As shown in Figure 4 and Figure 5, a kind of shackle that the embodiment of the present invention three provides comprises button 1 and bearing pin 2, button 1 is U-shaped, an end of button 1 has through hole 11, another end has tapped hole 12, through hole 11 and tapped hole 12 coaxial lines, the rear end of bearing pin 2 is provided with shoulder 21, front end is provided with the outside thread matching with tapped hole 12, on the ear end face of bearing pin 2, be fixed with eye 3, on eye 3, be fixed with shaft-like handle 5, shaft-like handle 5 is perpendicular with bearing pin 2, the front end of bearing pin 2 is screwed in tapped hole 12 through through hole 11, on bearing pin 2, between two ends of button 1 and near externally threaded position, be provided with annular groove 22, in annular groove 22, be set with rubber ring 7.

Embodiment four

As shown in Figure 6, the one providing in the embodiment of the present invention four is unloaded and is smashed, and button 1 is bow type, and other structure is with embodiment one.

Be to be understood that example as herein described and mode of execution are only in order to illustrate, those skilled in the art can make various amendments or variation according to it, in the situation that not departing from Spirit Essence of the present invention, all belong to protection scope of the present invention.

Claims

1. a shackle, comprise button and bearing pin, button is U-shaped or bow type, an end of button has through hole, another end has tapped hole, through hole and tapped hole coaxial line, the rear end of bearing pin is provided with shoulder, front end is provided with the outside thread matching with tapped hole, on the ear end face of bearing pin, is fixed with eye, the front end of bearing pin is screwed in tapped hole through through hole, it is characterized in that: on bearing pin, between two ends of button and near externally threaded position, be provided with limiting board.

2. a kind of shackle as claimed in claim 1, is characterized in that: described limiting board is the ring-shaped step that is fixed on corresponding position on bearing pin.

3. a kind of shackle as claimed in claim 1, is characterized in that: described limiting board is jump ring or rubber ring, and on bearing pin, corresponding position is provided with annular groove, limiting board is sleeved in this annular groove.

4. a kind of shackle as described in claim 1 or 2 or 3, is characterized in that: on described eye, be fixed with shaft-like handle, shaft-like handle is perpendicular to bearing pin.