CN206785916U

CN206785916U - A kind of guide sleeve

Info

Publication number: CN206785916U
Application number: CN201720623101.3U
Authority: CN
Inventors: 蔡健翰
Original assignee: Ningbo Jinzhong Powder Metallurgy Co Ltd
Current assignee: Ningbo Jinzhong Powder Metallurgy Co Ltd
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2017-12-22
Anticipated expiration: 2027-05-31

Abstract

The utility model provides a kind of guide sleeve, including：Circular body, the centre bore worn for piston rod is set on the body, there is end difference on the outer ring face of the guide sleeve, sealing ring and hold-down ring are provided with the end difference, the sealing ring is contradicted on the bottom surface of the end difference, and the hold-down ring is contradicted on the sealing ring and is fixedly connected with the end difference.The beneficial effects of the utility model are：The integraty being connected with damper cylinder body is preferable, and relatively more steady, will not produce the loosening of radial direction.

Description

A kind of guide sleeve

Technical field

The utility model belongs to damper accessory technical field, is related to a kind of guide sleeve.

Background technology

Guide sleeve is a part in damper, and it is arranged in the cylinder body of damper, and piston rod is passed through and is oriented to Set, so that piston rod is more steady when being moved in cylinder body.

In specific mounting structure, guide sleeve is fixed on the port part of damper cylinder body, and piston rod passes through guide sleeve Centre bore, and the outer peripheral face of guide sleeve is fixed in damper cylinder body, so as to play guide effect.

But existing guide sleeve, although it can be located in damper cylinder body, its with damper cylinder body The integraty of connection is poor, and unstable, the loosening of radial direction is easily produced, so with certain room for improvement.

Utility model content

The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of guide sleeve.

The purpose of this utility model can be realized by following technical proposal：A kind of guide sleeve, including：Circular set Body, the centre bore worn for piston rod is set on the body, there is end difference, the ladder on the outer ring face of the guide sleeve Sealing ring and hold-down ring are provided with portion, the sealing ring is contradicted on the bottom surface of the end difference, and the hold-down ring contradicts It is fixedly connected on the sealing ring and with the end difference.

Preferably, having installation end face on the hold-down ring, the installation end face is fixedly connected with the end face of the body.

Preferably, it is provided through screwed hole on the end face of the body.

Preferably, offered on the end face of the body annular groove, the side wall of the groove outwardly with it is described in The diameter parallel in a heart hole and side wall inwardly is obliquely installed.

Compared with prior art, the beneficial effects of the utility model are：

1st, withstood on by sealing ring on the inboard wall of cylinder block of damper, so as to eliminate both gaps, and to guide sleeve radial direction Support force, so that both integraty are higher, it will not also produce loosening.

2nd, make the assembling of sealing ring more convenient by the structure of hold-down ring and trapezoidal portion, it is suitable this makes it possible to select Sealing ring is installed on end difference, has so both facilitated the installation of guide sleeve, and can also making guide sleeve, integraty is higher after mounting, Stability is more preferable.

Brief description of the drawings

Fig. 1 is the structural representation of guide sleeve of the present utility model.

Fig. 2 is Fig. 1 A portions enlarged diagram.

In figure, 100, body；110th, centre bore；120th, screwed hole；130th, groove；200th, end difference；300th, sealing ring； 400th, hold-down ring；The 410th, end face is installed.

Embodiment

It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.

As shown in Figure 1 and Figure 2, a kind of guide sleeve, the guide sleeve is mounted in the cylinder body of damper, and piston rod is worn Cross the guide sleeve.

The guide sleeve includes circular body 100, and body 100 is similar to round pie, and has rear and front end face.

The centre bore 110 worn for piston rod is set on the body 100, and centre bore 110 can play guide effect, letter It is exactly that piston rod can avoid it unstable in movement along the axial movement of centre bore 110 for list.

There is end difference 200, end difference 200 is exactly to be used for installing fixed seal ring 300 on the outer ring face of the guide sleeve Structure.

Sealing ring 300 and hold-down ring 400, the cylinder of sealing ring 300 and damper cylinder body are provided with the end difference 200 Wall is contradicted together, so as to eliminate both gaps, although furthermore, it is understood that the end of traditional guide sleeve and damper is consolidated It is fixed, but it still can diametrically produce trickle motion, that is, loosening occurs in use, it can so reduce guiding Effect, and increase the abrasion of piston rod and guide sleeve, even piston movement can be made unstable when serious.

So on end difference 200 set sealing ring 300 after, can make guide sleeve outer ring face have one layer of rubber or It is raised made of flexible material, that is, sealing ring 300, sealing ring 300 is withstood on the inboard wall of cylinder block of damper and eliminate both Gap, and to the support force of guide sleeve radial direction, so that both integraty are higher, will not also produce loosening.

The sealing ring 300 is contradicted on the bottom surface of the end difference 200, and the hold-down ring 400 is contradicted in the sealing It is fixedly connected, the installation that such structure can be relatively good, and is manufacturing on circle 300 and with the end difference 200 When it is also more convenient, herein it is worthy of note that, additionally it is possible to selected according to the gap length between guide sleeve and damper inwall Different size of sealing ring 300 is selected, so as to which suitable sealing ring 300 is installed on end difference 200, so both facilitates guide sleeve Installation, can also making guide sleeve, integraty is higher after mounting, and stability is more preferable.

As shown in Fig. 2 there is installation end face 410 on the basis of above-mentioned embodiment, on the hold-down ring 400, it is described Installation end face 410 is fixedly connected with the end face of the body 100, and installation end face 410 is close on the rear end face of guide sleeve, then It is screwed into screw, it is possible to hold-down ring 400 is fixed on body 100, so that hold-down ring 400 pushes down sealing ring 300.

As shown in figure 1, on the basis of above-mentioned embodiment, screwed hole is provided through on the end face of the body 100 120, by penetrating screw in screwed hole 120, it becomes possible to which body 100 and damper cylinder body are linked together.

As shown in figure 1, on the basis of above-mentioned embodiment, the groove of annular is offered on the end face of the body 100 130, groove 130 can be connected with the end cap of damper, be easy to end cap to position, the side wall of the groove 130 outwardly with it is described The diameter parallel of a centre bore 110 and side wall inwardly is obliquely installed, the groove 130 of such shape, its locating effect with good, It is and more convenient.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims

A kind of 1. guide sleeve, it is characterised in that including：Circular body, set on the body in being worn for piston rod Heart hole, there is end difference on the outer ring face of the guide sleeve, sealing ring and hold-down ring are provided with the end difference, it is described close Seal is contradicted on the bottom surface of the end difference, and the hold-down ring is contradicted on the sealing ring and fixed with the end difference Connection.
2. guide sleeve as described in claim 1, it is characterised in that：There is installation end face, the installation on the hold-down ring End face is fixedly connected with the end face of the body.
3. guide sleeve as described in claim 2, it is characterised in that：Screwed hole is provided through on the end face of the body.
4. guide sleeve as described in claim 3, it is characterised in that：The groove of annular is offered on the end face of the body, The diameter parallel of the side wall of a groove outwardly and the centre bore and side wall inwardly is obliquely installed.