CN201858233U - Falling-off prevention connecting pin - Google Patents

Abstract

The utility model provides a falling-off prevention connecting pin which comprises a retaining ring, a pin and a cotter pin; the pin comprises a shaft shoulder, a small shaft end, and a shaft hole penetrating the shaft shoulder and the small shaft end; the retaining ring is sleeved on the circumference of the small shaft end; and two feet of the cotter pin penetrate the shaft hole, and the parts of the two feet of the cotter pin to extend out of the shaft hole are bent. The falling-off prevention connecting pin has the advantages of simple structure, convenience in installation, simple manufacturing process and low manufacturing cost; and the falling-off prevention connecting pin is particularly suitable for the particularly small working space of semiautomatic or automatic equipment, does not fall off when in use and overcomes the defect that the traditional connecting pin easily falls off.

Description

A kind of anticreep connecting pin

[technical field]

The utility model relates to a kind of connection set, particularly a kind of anticreep connecting pin.

[background technique]

The development of society be unable to do without the progress of science and technology; the progress of science and technology has promoted industrial expansion again; the application of the connecting pin of component of machine in mechanical industry can be found everywhere; traditional connecting pin one end is the shaft shoulder; the other end is the screw thread small end; with convenient perforation, connecting pin inserts the axle bed hole from small end, refills Upper gasket; use nut screwing clamping; in order to prevent coming off of connecting pin, generally add compression spring or use lock nut, prevent coming off of nut; but in actual use; through long machinery action, the nut of connecting pin and pad are loosening through regular meeting, cause influence to be produced.Another main cause is, under the especially little situation of working space, can't change connecting pin or tighten lock nut, can't change quickly after causing damage parts, and all parts that can only remove periphery just can carry out.Therefore, the dismounting of conventional connecting pin is installed cumbersome, influences the cost of production of enterprise, and changes trouble, time-consuming, production management cost height.

[model utility content]

The purpose of this utility model provides a kind of anticreep connecting pin, to solve the problems of the technologies described above.

In order to address the above problem, the utility model adopts following technological scheme:

A kind of anticreep connecting pin comprises retaining figure, pin and cotter pin, and described pin comprises the shaft shoulder, little axle head and runs through the shaft shoulder and the axis hole of little axle head; Described shield ring sleeve is located at described little axle head periphery; The bipod of described cotter pin runs through described axis hole, and the bipod of cotter pin stretches out the part bending of axis hole.

With respect to prior art, a kind of anticreep connecting pin of the utility model is simple in structure, easy for installation, manufacturing process simple, low cost of manufacture; Be specially adapted to the especially little occasion of working space of semi-automatic or automatic equipment, can not come off during use, overcome the caducous shortcoming of traditional connecting pin.

[description of drawings]

Fig. 1 is the parts drawing of a kind of anticreep connecting pin of the utility model;

Fig. 2 is the ssembly drawing of a kind of anticreep connecting pin shown in Figure 1.

[embodiment]

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.

See also Figure 1 and Figure 2, a kind of anticreep connecting pin of the utility model comprises back-up ring 1, pin 5 and cotter pin 6.Pin 5 comprises the shaft shoulder 2, little axle head 4 and runs through the shaft shoulder 2 and the axis hole 3 of little axle head 4.

A kind of anticreep connecting pin of the utility model is installed in the axle bed hole of component.In installation process, in the axle bed hole of earlier small end axle 4 being packed into, when reaching the shaft shoulder 2, because the external dimension of the shaft shoulder 2 are greater than the axle bed hole dimension, pin 5 stop motions; Be contained in back-up ring 1 on the little axle head 4 this moment, left side axis hole 3 from the shaft shoulder 2 inserts cotter pins 6 again, after the bipod of cotter pin 6 passes axis hole 3, works to strut " one " font with a vice or a word in the part of cotter pin 6 right-end openings, like this, the anticreep connecting pin installs.Because the left side eyelet of cotter pin 6 is stuck in axle bed hole one side, two foot sections that right-hand member stretches out axis hole 3 strut, its external dimension are greater than the size in axle bed hole, in the motion of component, cotter pin 6 part in axis hole 3 moves, and general vibrating state can not cause coming off of connecting pin, and the utility model has been obtained effect preferably in actual applications, particularly, solved the deficiency of traditional connecting pin in the narrow and small relatively local better effects if of working space.

Claims (1)

1. anticreep connecting pin, it is characterized in that: comprise back-up ring (1), pin (5) and cotter pin (6), described pin (5) comprises the shaft shoulder (2), little axle head (4) and runs through the shaft shoulder (2) and the axis hole (3) of little axle head (4); Described back-up ring (1) is sheathed on described little axle head (4) periphery; The bipod of described cotter pin (6) runs through described axis hole (3), and the bipod of cotter pin (6) stretches out the part bending of axis hole (3).

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