CN2433482Y

CN2433482Y - Multifunction check valve

Info

Publication number: CN2433482Y
Application number: CN 00212774
Authority: CN
Inventors: 赫庆春
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-27
Filing date: 2000-07-27
Publication date: 2001-06-06
Anticipated expiration: 2010-07-27

Abstract

The utility model discloses a multifunction check valve, and relates to a check valve arranged on oil transportation or water transportation pipelines. The utility model comprises a valve body, a sealing opening, a valve clack, a supporting board, a connecting plate, a shaft, a shaft sleeve, a spring, a slow-opening cylinder body, a slow-opening piston, a slow-closing cylinder body, a slow-closing piston, a guide pipe and a control valve. The utility model has the advantage that as the utility model is arranged on the outlet part of the water pump, the utility model can satisfy normal starting of the water pump, regulate flow quantity, cut off and or check when the water pump stops running, and eliminate water hammer.

Description

Multifunctional non-return valve

The utility model relates to a kind of safety check that is contained on oil transportation or the aqueduct.

Existing safety check is unslow opens function, stop valve must be installed on pipeline could guarantee that water pump normally starts; General check valve does not have the Slow Close function in addition, can not eliminate water hammer.

The purpose of this utility model is a kind of multifunctional non-return valve that uses a valve just can satisfy the normal startup of water pump and/or can eliminate water hammer when water pump shuts down of design.

The purpose of this utility model is realized by following proposal: it comprises valve body 9, at valve body ingress dress sealed mouth 1, at valve body built-in hold fagging 14, plural axle sleeve 5 is housed on the dunnage, plural axle 10 is housed on the flap 2, axle is contained in the axle sleeve that is with spring 4, the other end of each is connected and fixed with connecting plate 12, axle slides in axle sleeve, and in the face of the valve inlet side, dress delays opens cylinder body 11 in dunnage 14, slow opening is equipped with the slow piston 3 of opening in the cylinder body, slow open inner chamber of cylinder block and link to each other with conduit 7 one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve 8 again.

In order to make this valve slow also have the Slow Close function when opening function having, we in the face of valve outlet port side dress Slow Close cylinder body 13, adorn Slow Close piston 6 in dunnage 14 in the Slow Close cylinder body, the Slow Close inner chamber of cylinder block links to each other with conduit 7 one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve 8 again.

Sometimes only require that valve has the Slow Close function, its structure is as follows: it comprises valve body 9, at valve body ingress dress sealed mouth 1, at valve body built-in hold fagging 14, plural axle sleeve 5 is housed on the dunnage, plural axle 10 is housed on the flap 2, axle is contained in the axle sleeve that is with spring 4, the other end of each is connected and fixed with connecting plate 12, and axle slides in axle sleeve, adorns Slow Close cylinder body 13 in dunnage 14 in the face of the valve outlet port side, dress Slow Close piston 6 in the Slow Close cylinder body, the Slow Close inner chamber of cylinder block links to each other with conduit 7 one ends, and the conduit the other end leads to outside the valve body, leads in the valve body behind control valve 8 again.

The utility model has the advantages that using this valve can satisfy water pump at pump outlet normally starts, regulate flow, by and/or when water pump shuts down non-return, eliminate water hammer.

Accompanying drawing is a generalized section of the present utility model.

In conjunction with the accompanying drawings the utility model is further described again below:

It comprises valve body 9, at valve body ingress dress sealed mouth 1, at valve body built-in hold fagging 14, two or more axle sleeves 5 are housed on the dunnage, two or more axles 10 are housed on the flap 2, axle is contained in the axle sleeve that is with spring 4, the other end of each is connected and fixed with connecting plate 12, axle slides in axle sleeve, and in the face of the valve inlet side, dress delays opens cylinder body 11 in dunnage 14, slow opening is equipped with the slow piston 3 of opening in the cylinder body, slow open inner chamber of cylinder block and link to each other with conduit 7 one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve 8 again.

Claims

1, multifunctional non-return valve, comprise valve body [9], at valve body ingress dress sealed mouth [1], it is characterized in that at valve body built-in hold fagging [14], plural axle sleeve [5] is housed on the dunnage, plural axle [10] is housed on the flap [2], axle is contained in the axle sleeve that is with spring [4], and the other end of each is connected and fixed with connecting plate [12], and axle slides in axle sleeve, face the valve inlet side in dunnage [14], the slow cylinder body [11] of opening of dress, slow opening is equipped with the slow piston [3] of opening in the cylinder body, slowly open inner chamber of cylinder block and link to each other with conduit [7] one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve [8] again.

2, according to the described multifunctional non-return valve of claim 1, it is characterized in that in dunnage [14] in the face of valve outlet port side dress Slow Close cylinder body [13], dress Slow Close piston [6] in the Slow Close cylinder body, the Slow Close inner chamber of cylinder block links to each other with conduit [7] one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve [8] again.

3, multifunctional non-return valve, comprise valve body [9], at valve body ingress dress sealed mouth [1], it is characterized in that at valve body built-in hold fagging [14], plural axle sleeve [5] is housed on the dunnage, plural axle [10] is housed on the flap [2], axle is contained in the axle sleeve that is with spring [4], the other end of each is connected and fixed with connecting plate [12], in the face of valve outlet port side dress Slow Close cylinder body [13], adorn Slow Close piston [6] in dunnage [14] in the Slow Close cylinder body, the Slow Close inner chamber of cylinder block links to each other with conduit [7] one ends, the conduit the other end leads to outside the valve body, leads in the valve body behind control valve [8] again.