CN2694022Y

CN2694022Y - Circlip for hole

Info

Publication number: CN2694022Y
Application number: CN 200420031115
Authority: CN
Inventors: 郑丽霞; 马世义; 高梅
Original assignee: DALIAN HYDRAULIC PIECE FACTORY
Current assignee: DALIAN HYDRAULIC PIECE FACTORY
Priority date: 2004-04-07
Filing date: 2004-04-07
Publication date: 2005-04-20
Anticipated expiration: 2014-04-07

Abstract

The utility model provides a circlip for a hole. The circlip for a hole is provided with a circlip basic body for a standard hole. Inner radial teeth which are connected into an integral body with the inner ambient surface of the circlip basic body and are raised towards a center are arranged on the inner ambient surface of the circlip basic body, or outer radial teeth which are connected into an integral body with the outer ambient surface of the circlip basic body used for the standard hole and outwards extended are arranged on the outer ambient surface of the circlip basic body for the standard hole. The teeth numbers of the radial teeth can be three. Compared with the prior art, the utility model has the advantages that though the structure of the circlip for a hole is simple, the structure of the circlip for a hole is very practical, and an actual problem in production is solved.

Description

Circlip for hole

Technical field the utility model relates to a kind of mechanical links.

The background technique structure is that the circlip for hole of opening annulus is the mechanical parts of using always, and it has the design standard of standard.But in actual production, often run into the component external diameter that blocked by back-up ring, even, make back-up ring not block by block piece effectively less than the internal diameter of back-up ring less than the aperture.People attempt to remedy with the width that increases between the back-up ring inner and outer circumferential surfaces for this reason, but after the width of back-up ring increased, its distortion just was converted into plastic deformation by resiliently deformable, and back-up ring has lost elasticity to be caused and can't use.

The summary of the invention the purpose of this utility model is to provide a kind of component external diameter that is blocked by back-up ring that can compensate effectively can keep simultaneously its flexible circlip for hole again less than the aperture.

The utility model is to be matrix with the existing standard circlip for hole, on its slick and sly cylindricality side face, establish the radial teeth that is connected as a single entity with it, this radial teeth can be provided in a side of on the inner peripheral surface to the interior radial teeth of central protuberance, also can be provided in a side of outward extending outer radial tooth on the outer circumferential face.The shape of above-mentioned radial teeth can have multiple, is vertical straight-tooth as end face substantially with both sides, and pointed tooth, the both sides that intersect together both sides are the stepped tooth and the semicircle tooth of inclined-plane flat-top (or cylinder top).The number of above-mentioned radial teeth can be 1-6, and the utility model has following advantage compared to existing technology: though its structure is simply very practical, having solved the production guide ring can not block effectively by the practical problem of block piece.

Description of drawings

Fig. 1 is a back-up ring working principle schematic representation.

Fig. 2 is that the master of the utility model example 1 looks schematic representation.

Fig. 3 is the A-A view of Fig. 2.

Fig. 4 is that the master of the utility model example 2 looks schematic representation.

Fig. 5 is the B-B view of Fig. 4.

Embodiment is in back-up ring working principle schematic representation shown in Figure 1, and the internal diameter of existing back-up ring 1 makes back-up ring can not block effectively by the retaining part greater than part 2 external diameters that blocked by back-up ring.In the schematic representation of Fig. 2 and circlip for hole shown in Figure 3, on the inner peripheral surface of standard circlip for hole matrix 3, establish and be connected as a single entity with it and to 3 interior radial teeth 4 of central protuberance.In the schematic representation of Fig. 4 circlip for hole shown in Figure 5, on the outer circumferential face of standard circlip for hole matrix 3, establish and be connected as a single entity with it and stretch out 3 outer radial teeth 5.

Claims

1. circlip for hole, it has standard circlip for hole matrix, it is characterized in that: establish the radial teeth that is connected as a single entity with it on the matrix side face.

2. circlip for hole according to claim 1 is characterized in that: the number of teeth of radial teeth is 3.