CN2230382Y

CN2230382Y - Rubber soft-jointing non-return valve

Info

Publication number: CN2230382Y
Application number: CN 95216056
Authority: CN
Inventors: 查恩玉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-12
Filing date: 1995-07-12
Publication date: 1996-07-03
Anticipated expiration: 2005-07-12

Abstract

The utility model relates to a valve, particularly a check valve connected near a power pump port. The utility model is composed of a rubber valve body, a shuttling valve core and a valve plate, wherein, the rubber valve body is connected between two forceps holder flanges; the shuttling valve core is composed of a support disk and a guide sleeve and the end of the support disk is connected in one end of the inner wall of the rubber valve body; the end of the guide sleeve of the shuttling valve core is arranged in the rubber valve body. Consequently, the utility model not only ensures the vibration isolation of a pipe line, but also shortens the length of a pipe line system, reduces the cost of the whole system and has reliable seal.

Description

The soft safety check that connects of rubber

The utility model relates to a kind of valve, especially refers to be connected the safety check near power pumping hole place.

At present, valves such as traditional safety check, gate valve all are rigid construction, for the vibration that stops kinetic pump influence to valve, usually between kinetic pump and valve (as: safety check), needing increases rubber soft connector or metal expansion joint, will inevitably increase the length of pipe-line system, the while cost up, in addition, the soft valve seat of traditional safety check is not firm with being connected of rigidity valve body, is prone to obscission.

In view of this, the purpose of this utility model provides the soft safety check that connects of a kind of rubber, and in telescopic valve interior wall one end, horizontal boom one shuttle valve core can make the pipeline vibration isolation.

The purpose of this utility model is achieved in that it comprises the clamp flange, it also has rubber valve body, shuttle valve core and valve plate, wherein rubber valve body is connected between the two clamp flanges, the shuttle valve core is to be constituted and be connected with its supporting disk end in the end of rubber valve body inwall by supporting disk and guide pin bushing, and its guide pin bushing end cantilever is in rubber valve body.

Above-mentioned supporting disk and guide pin bushing are to be threaded.

Above-mentioned supporting disk and guide pin bushing are single piece.

Above-mentioned rubber valve body is a spherical shell.

Clamping seal valve seat and can be that the valve plate on inclined-plane contacts between above-mentioned supporting disk and the guide pin bushing with front end.

Clamping seal valve seat and can be that the valve plate on plane contacts between above-mentioned supporting disk and the guide pin bushing with front end.

The conical surface of above-mentioned supporting disk can contact with the valve plate of ball.

Owing to adopt such scheme: both guaranteed the pipeline vibration isolation, and ductwork lengths is shortened, thereby reduce the whole system cost, and sealability had been reliable.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model first example structure schematic representation.

Fig. 2 the utility model second example structure schematic representation.

Fig. 3 the utility model the 3rd example structure schematic representation.

Among the figure: 1, clamp flange 2, rubber valve body 3, seal washer 4, shuttle valve core 41, supporting disk 42, guide pin bushing 5, valve plate 6, position limit cycle 7, seal valve seat

First embodiment, as shown in Figure 1,

But rubber valve body 2 is spherical shells of longitudinal extension distortion and is formed by the lined silk screen of rubber (gaining in strength) molded vulcanization.These rubber valve body 2 two ends outer rims are rabbeted respectively or integrated vulcanizing two clamp flanges 1 (rigid body belongs to prior art), with bolt connecting flange are connected in the pipe-line system again.

Shuttle valve core 4 is the rigidity opening barrel shells that are threaded by supporting disk 41 and guide pin bushing 42, rabbet in an end of rubber valve body 2 inwalls with an end bearing dish 41 outer rims, and its other end guide pin bushing 42 cantilevers is in rubber valve body 2.

Seal washer 3 places supporting disk 41 front ends of shuttle valve core 4, guaranteeing the assembly of safety check of the present utility model and pipe-line system, as: kinetic pump is tightly connected.

Seal valve seat 7 be clamped between supporting disk 41 and the guide pin bushing 42 and with valve plate 5 end faces (inclined-plane) contact seal.

Valve plate 5 (hard engineering plastic materials is made) is the slider that is in the shuttle valve core 4, contacts with seal valve seat 7 with its front end inclined-plane, closes or opens check valve (genus prior art) by differential pressure action; With the position limit cycle 6 that is threaded, prevent that valve plate 5 from deviating from (genus prior art) at shuttle valve core 4 right-hand member heads.

Second embodiment, as shown in Figure 2,

The front end that removes valve plate 5 is the plane, and with seal valve seat 7 contact seals, remaining part is identical with first embodiment.

The 3rd embodiment, as shown in Figure 3,

The supporting disk 41 and the guide pin bushing 42 of shuttle valve core 4 are that integral body is made; Valve plate 5 is the conical surface contact seal of the supporting disk 41 of rubber ball-shaped (high resilience) and rigidity, and remaining part is identical with first embodiment.

In sum: scalable safety check of the present utility model, under the vibration of kinetic pump, itself can be by rubber valve body 2 vibration isolation (absorbing vibration), guarantee the safety check proper functioning, save extra expansion joint, thereby can shorten ductwork lengths, reduce the pipe-line system cost, in addition, soft valve seat difficult drop-off guarantees that the check valve seal performance is reliable.

Claims

1. the soft safety check that connects of rubber comprises the clamp flange, it is characterized in that: it also has rubber valve body, shuttle valve core and valve plate, wherein rubber valve body is connected between the two clamp flanges, the shuttle valve core is to be constituted and be connected with its supporting disk end in the end of rubber valve body inwall by supporting disk and guide pin bushing, and its guide pin bushing end cantilever is in rubber valve body.

2, by the soft safety check that connects of the described rubber of claim 1, it is characterized in that: above-mentioned supporting disk and guide pin bushing are to be threaded.

3, by the soft safety check that connects of the described rubber of claim 1, it is characterized in that: above-mentioned supporting disk and guide pin bushing are single piece.

4, by the soft safety check that connects of the described rubber of claim 1, it is characterized in that: above-mentioned rubber valve body is a spherical shell.

5. by the soft safety check that connects of the described rubber of claim 2, it is characterized in that: clamping seal valve seat and can be that the valve plate on inclined-plane contacts between above-mentioned supporting disk and the guide pin bushing with front end.

6, by the soft safety check that connects of the described rubber of claim 2, it is characterized in that: clamping seal valve seat and can be that the valve plate on plane contacts between above-mentioned supporting disk and the guide pin bushing with front end.

7, by the soft safety check that connects of the described rubber of claim 3, it is characterized in that: the conical surface of above-mentioned supporting disk can contact with the valve plate of ball.