CN210484701U

CN210484701U - Y-shaped spring check valve

Info

Publication number: CN210484701U
Application number: CN201920387037.2U
Authority: CN
Inventors: 周孙良; 张春益; 张崇贤; 赵承远
Original assignee: Wenzhou Changjia Valve Co ltd
Current assignee: Wenzhou Changjia Valve Co ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-05-08
Anticipated expiration: 2029-03-26

Abstract

The utility model relates to a check valve technical field specifically is a Y type spring check valve, valve body and valve gap including Y type structure, the non return device that has prevented out the water end return water has been pegged graft in the cavity that link up between the intaking of valve body and the play water both ends, just the non return device is connected with the rotatory valve gap in this cavity upper end, and the valve gap is located one end and is connected with the uide bushing in this cavity. The spring is arranged in the guide sleeves at the lower ends of the check barrel and the valve cover, the spring cannot be contacted with a fluid medium, the fluid medium cannot corrode the spring, and the service life of the spring is prolonged; the gravity of the check device is improved by arranging the counterweight ring at the lower part of the valve clack, so that the valve clack is closed in a full stroke manner when closed, and the sealing performance is improved; through setting up the arc wall at the lateral surface of non return bucket, when the fluid medium takes place to flow back, the fluid strikes the arc wall on the non return bucket in, plays the effort that pushes down to the non return device, promotes the non return effect of check valve.

Description

Y-shaped spring check valve

Technical Field

The utility model relates to a check valve technical field specifically is a Y type spring check valve.

Background

The check valve is mainly used for preventing media in the pipeline from flowing backwards and is a valve capable of automatically stopping the fluid from flowing backwards. The flap of the check valve opens under fluid pressure, which flows from the inlet side to the outlet side. When the pressure at the inlet side is lower than that at the outlet side, the valve clack automatically closes under the action of fluid pressure difference, self gravity and other factors to prevent the fluid from flowing backwards.

Current application number is 201720688714.5 patent name is a self sealss Y type check valve, through setting up the intercommunication mouth, the intercommunication mouth makes the epicoele and the valve body export intercommunication of valve clack, rise and when falling back at the valve clack, impact and vibration have been reduced, the circulation resistance is little, and make the valve clack reach the full stroke, however, the intercommunication mouth of seting up makes the liquid medium of circulation can with the spring contact at non return position, corrode the spring, the spring action that leads to the spring reduces, long-time use leads to the check valve inefficacy easily, cause the loss for the enterprise, for this, we provide a Y type spring check valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a Y type spring check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a Y-shaped spring check valve comprises a valve body and a valve cover with a Y-shaped structure, wherein a check device for preventing water from returning from a water outlet end is inserted in a through cavity between the two ends of water inlet and outlet of the valve body, and the non-return device is connected with a valve cover which rotates at the upper end of the cavity, one end of the valve cover which is positioned in the cavity is connected with a guide sleeve, the non-return device comprises a spring connected with the bottom of the valve cover, a non-return barrel movably inserted in a guide sleeve at the lower end of the valve cover and a valve clack connected at the lower end of the non-return barrel, the other end of the spring is connected with the inner bottom wall of the non-return barrel, the middle part of a groove arranged at the lower end of the valve clack is connected with a screw rod, a counterweight ring positioned in the groove is sleeved on the screw rod, a section of the counterweight ring outside the groove is sleeved with a sealing ring which is butted with the valve clack, a gasket at the lower end of the sealing ring is sleeved on the screw rod, the counterweight ring, the sealing ring and the gasket are sleeved on the screw rod through nut threads and are fixedly connected with the valve clack.

Preferably, the outer side wall of the non-return barrel is provided with an arc-shaped groove convenient for backwater pressing.

Preferably, the arc wall comprises first arc face and second arc face, and first arc face and second arc face all are the sunk structure setting to non return bucket inner wall, and the diameter of the circle of constituteing first arc face is greater than the diameter of the circle of constituteing the second arc face.

Preferably, a body cover gasket for enhancing the sealing performance is sleeved at the joint of the valve cover and the cavity.

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

1. the spring is arranged in the guide sleeves at the lower ends of the check barrel and the valve cover, the spring cannot be contacted with a fluid medium, the fluid medium cannot corrode the spring, and the service life of the spring is prolonged;

2. the gravity of the check device is improved by arranging the counterweight ring at the lower part of the valve clack, so that the valve clack is closed in a full stroke manner when closed, and the sealing performance is improved;

3. through setting up the arc wall at the lateral surface of non return bucket, when the fluid medium takes place to flow back, the fluid strikes the arc wall on the non return bucket in, plays the effort that pushes down to the non return device, promotes the non return effect of check valve.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of the internal installation structure of the present invention;

fig. 3 is the schematic view of the assembly structure of the non-return barrel, the sealing ring, the gasket and the nut of the present invention.

In the figure: the valve comprises a valve body 1, a valve cover 2, a body cover gasket 3, a spring 4, a non-return barrel 5, a screw 51, a counterweight ring 52, an arc-shaped groove 53, a first arc-shaped surface 531, a second arc-shaped surface 532, a sealing ring 6, a gasket 7 and a nut 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a Y type spring check valve, includes valve body 1 and valve gap 2 of Y type structure, and it has the non return device that prevents the return water of play water end to peg graft in the cavity that link up between the intake of valve body 1 and the play water both ends, and non return device is connected with rotatory valve gap 2 in this cavity upper end, and valve gap 2 has cup jointed the body cover gasket 3 that is used for strengthening sealing performance with the junction of cavity, and valve gap 2 is located one end connection guide sleeve in this cavity.

The check device comprises a spring 4 connected with the bottom of the valve cover 2, a check barrel 5 movably inserted in a guide sleeve at the lower end of the valve cover 2 and a valve clack connected at the lower end of the check barrel 5, the other end of the spring 4 is connected with the inner bottom wall of the check barrel 5, the spring 4 is arranged in the guide sleeve at the lower end of the check barrel 5 and the valve cover 2, the spring 4 can not contact with a fluid medium, the fluid medium can not corrode the spring 4, the service life of the spring 4 is prolonged, the middle part of a groove formed at the lower end of the valve clack is connected with a screw rod 51, a counterweight ring 52 positioned in the groove is sleeved on the screw rod 51, the gravity of the check device is promoted by arranging the counterweight ring 52 at the lower part of the valve clack, so that the valve clack can be closed in a full stroke and can be closed quickly, the sealing performance is improved, the weight of the counterweight ring 52 is adapted according, the screw 51 is sleeved with a gasket 7 positioned at the lower end of the sealing ring 6, and the counterweight ring 52, the sealing ring 6 and the gasket 7 are sleeved on the screw 51 through the nut 8 and are fixedly connected with the valve clack.

The lateral wall of non return bucket 5 is provided with the arc wall 53 that the return water of being convenient for pushed down, arc wall 53 comprises first arcwall face 531 and second arcwall face 532, and first arcwall face 531 and second arcwall face 532 all are the sunk structure setting to non return bucket 5 inner wall, the diameter of the circle of constituteing first arcwall face 531 is greater than the diameter of the circle of constituteing second arcwall face 532, lateral surface through at non return bucket 5 sets up arc wall 53, when fluid medium takes place the backward flow, the fluid strikes in the arc wall 53 on non return bucket 5, play the effort of pushing down to non return device, promote the non return effect of check valve.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a Y type spring check valve, includes valve body (1) and valve gap (2) of Y type structure, its characterized in that: a check device for preventing the water outlet end from returning is inserted into a through cavity between the two ends of the water inlet and the water outlet of the valve body (1), the check device is connected with a valve cover (2) which rotates at the upper end of the cavity, one end of the valve cover (2) positioned in the cavity is connected with a guide sleeve, the check device comprises a spring (4) connected with the bottom of the valve cover (2), a check barrel (5) movably inserted in the guide sleeve at the lower end of the valve cover (2) and a valve clack connected at the lower end of the check barrel (5), the other end of the spring (4) is connected with the inner bottom wall of the check barrel (5), the middle part of a groove formed at the lower end of the valve clack is connected with a screw rod (51), a counterweight ring (52) positioned in the groove is sleeved on the screw rod (51), a sealing ring (6) which is abutted against the valve clack is sleeved at one section of the counterweight ring (52) positioned outside the groove, and a, the counterweight ring (52), the sealing ring (6) and the gasket (7) are sleeved on the screw rod (51) through the nut (8) in a threaded manner and are fixedly connected with the valve clack;

the lateral wall of non return bucket (5) is provided with arc wall (53) that the return water of being convenient for pushed down, arc wall (53) comprise first arcwall face (531) and second arcwall face (532), and just first arcwall face (531) and second arcwall face (532) all are the sunk structure setting to non return bucket (5) inner wall, and the diameter of the circle of constituteing first arcwall face (531) is greater than the diameter of the circle of constituteing second arcwall face (532).

2. A Y-spring check valve as defined in claim 1 wherein: and a body cover gasket (3) for enhancing the sealing performance is sleeved at the joint of the valve cover (2) and the cavity.