CN201606370U

CN201606370U - Convenient disassembly limit pin

Info

Publication number: CN201606370U
Application number: CN201020111934XU
Authority: CN
Inventors: 廖永红
Original assignee: SICHUAN CHENGGONG ENGINEERING-MACHINE STOCK Co Ltd
Current assignee: SICHUAN CHENGGONG ENGINEERING-MACHINE STOCK Co Ltd
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2010-10-13
Anticipated expiration: 2020-02-10

Abstract

The utility model discloses a convenient disassembly limit pin which belongs to a limit fixed pin and comprises a round bar limit pin body, a fixed block and a fixed clamp ring, wherein the fixed block is welded on the rear end of the limit pin body, both lateral surfaces of the fixed block are respectively provided with two blind holes, both ends of the fixed clamp ring are inserted into the blind holes, the internal diameter of the fixed clamp ring is less than or equal to the length of the limit pin body, when the limit pin needs to be mounted, the limit pin body is inserted into the pin hole of a pin shaft, and then the clamp ring is buckled with the pin shaft; when the limit pin needs to be disassembled, the fixed clamp ring is turned and pulled to conveniently draw out the limit pin, the assisting tools are avoided, meanwhile the rigidity of the clamp ring is increased and the limit reliability is improved as the blind holes on both sides of the fixed block are not in the same straight line, the convenient disassembly limit pin can be applicable to situations requiring fierce twisting, is particularly applicable to the limit structures and anti-rotation structures of the large loading machine, has simple structure, is suitable for industrial production and easy popularization.

Description

A kind of position limit pin for convenience detach

Technical field

The utility model relates to a kind of spacing fixing pin, a kind of position limit pin for convenience detach of saying so more specifically.

Background technique

The bearing pin position-limit mechanism is one of spacing fixing mode in some big machinery assemblings, especially this kind mode is used particularly general in the assembly process of large-duty loader, its principle is to insert the purpose that reaches fixed limit in the pin-and-hole by latch, and at present in the bearing pin position-limit mechanism employed latch all be cotter pin, usage mode is that afterbody cleaved end with cotter pin is after open on both sides, inserting pin-and-hole again fixes the parts that are fixed, but the cotter pin installation and removal all need to use the power-assisted instrument auxiliary, and also are not suitable for reversing in the violent modular construction at some and use.

The model utility content

The purpose of this utility model is to solve above-mentioned deficiency, provides a kind of installing/dismounting to need not to use power-assisted instrument and spacing fixing more stable position limit pin a kind of for convenience detach.

For solving above-mentioned technical problem, the utility model by the following technical solutions:

Position limit pin for convenience detach of the present utility model, comprise round bar position limit pin body, described position limit pin also comprises fixed block and fixing snap ring, fixed block is welded on the position limit pin body tip, also be respectively arranged with two blind holes on the bi-side of fixed block, fixedly insert in the blind hole at the two ends of snap ring, and fixedly the inside diameter of snap ring is less than or equal to the length of position limit pin body.

Further technological scheme is: described fixed block is a cuboid, and and the position limit pin body between be an angle of 90 degrees, fixed block can be close to the outer surface of bearing pin when making the position limit pin body insert pin-and-hole.

Further technological scheme is: the blind hole of described fixed block both sides is offset mutually, not on same straight line when preventing that the position limit pin body from inserting pin-and-hole the fixed card environment-development give birth to loosening.

Compared with prior art, the beneficial effects of the utility model are: snap ring is anchored on the bearing pin after when mounted the position limit pin body being inserted in the pin-and-hole on the bearing pin again and gets final product, when needs are dismantled the upset and the pulling fixedly snap ring just can easily extract position limit pin out, no longer need to use the power-assisted instrument auxiliary, simultaneously since the blind hole of fixed block both sides not on same straight line, increased the rigidity of snap ring, improved spacing reliability, can in reversing violent environment, use and stable for extended periods of time, be particluarly suitable for the limit structure on the large-duty loader, use in the rotation-preventing mechanism, and simple in structure, be suitable for industrialized production, be easy to promote.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a scheme of installation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1, position limit pin for convenience detach of the present utility model, comprise round bar position limit pin body 1, described position limit pin also comprises fixed block 2 and fixing snap ring 3, fixed block 2 is welded on position limit pin body 1 end, fixed block 2 is a cuboid, and and be an angle of 90 degrees between the position limit pin body 1, also be respectively arranged with two blind holes 21 on the bi-side of fixed block 2, blind hole 21 is offset mutually, and not on same straight line, fixedly insert in the blind hole 21 at the two ends of snap ring 3, and fixedly the inside diameter of snap ring 3 is less than or equal to the length of position limit pin body 1.

When using position limit pin for convenience detach of the present utility model, in the pin-and-hole that position limit pin body 1 is inserted on the bearing pin 4, as shown in Figure 2, fixedly snap ring 3 is anchored on the bearing pin 4 again, plays locking, spacing effect earlier; When needs are dismantled, directly overturn and spur fixedly snap ring 3 and just can easily extract position limit pin out.

Claims

1. position limit pin for convenience detach, comprise round bar position limit pin body (1), it is characterized in that: described position limit pin also comprises fixed block (2) and fixing snap ring (3), fixed block (2) is welded on position limit pin body (1) end, also be respectively arranged with two blind holes (21) on the bi-side of fixed block (2), fixedly insert in the blind holes (21) at the two ends of snap ring (3), and fixedly the inside diameter of snap ring (3) is less than or equal to the length of position limit pin body (1).

2. position limit pin for convenience detach according to claim 1 is characterized in that: described fixed block (2) is a cuboid, and and position limit pin body (1) between be an angle of 90 degrees.

3. position limit pin for convenience detach according to claim 1 and 2 is characterized in that: the blind hole (21) of described fixed block (2) both sides is skew mutually, not on same straight line.