CN218670785U

CN218670785U - Angle valve capable of preventing water from flowing backwards

Info

Publication number: CN218670785U
Application number: CN202223213446.1U
Authority: CN
Inventors: 周添辉
Original assignee: Quanzhou Finless Porpoise Industry Co ltd
Current assignee: Quanzhou Finless Porpoise Industry Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-21
Anticipated expiration: 2032-12-01

Abstract

The utility model belongs to the technical field of angle valves, in particular to an angle valve capable of preventing water from flowing backwards, which comprises an angle valve body, a water-stop valve core and a hand wheel; the anti-reverse valve core penetrates into the angle valve body from one end of the angle valve body, and the tail end of the anti-reverse valve core is connected with the hand wheel; the anti-reverse water valve core consists of a valve core main body, a screw rod, a sealing top block, a sealing push rod, a spring and a sealing gasket, wherein the front end of the screw rod is screwed into the tail end of the sealing top block by threads and assembled into the valve core main body, and the tail end of the sealing push rod is inserted into a cavity at the front end of the screw rod and is in contact with the spring; the check water valve core is screwed into one end of the angle valve body through the external thread at the front end of the valve core main body. The check valve core of the utility model has the function of water check; when water enters, the pressure of the water pushes the sealing gasket and the sealing push rod to move backwards to compress the spring, and the water can flow out from the water outlet end; the rotating hand wheel drives the screw rod to rotate, so that the sealing top block moves to push the sealing push rod and the sealing gasket to be sealed with the water inlet end, and water is shut off.

Description

Angle valve capable of preventing water from flowing backwards

Technical Field

The utility model belongs to the technical field of the angle valve, concretely relates to can prevent palirrhea angle valve of water.

Background

The existing closestool flusher is filled with sterilized water, and the triangular valve does not prevent water from flowing backwards, so that the water backflow phenomenon of the closestool flusher is caused, the domestic water of people is directly polluted, and the water health is influenced;

in addition, the cold and hot water pipes of the water heater are connected with the water pipe valves, so that cold and hot water can easily flow into the water, and the unstable performance of sudden cold and sudden heat can be realized; there is thus a need for improvement.

In order to solve the above problems, an angle valve that can prevent backflow of water has been developed.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an angle valve which can prevent water from flowing backwards, and a check water valve core plays a role of checking water; when water enters, the pressure of the water pushes the sealing gasket and the sealing push rod to move backwards to compress the spring, and the water can be discharged from the water outlet end; the rotating hand wheel drives the screw rod to rotate, so that the sealing top block moves to push the sealing push rod and the sealing gasket to be sealed with the water inlet end, and water is shut off.

In order to achieve the above object, the utility model provides a following technical scheme: an angle valve capable of preventing water from flowing backwards comprises an angle valve body, a water-backflow-stopping valve core and a hand wheel; the anti-reverse valve core penetrates into the angle valve body from one end of the angle valve body, and the tail end of the anti-reverse valve core is connected with the hand wheel;

the anti-reverse water valve core consists of a valve core main body, a screw rod, a sealing ejector block, a sealing push rod, a spring and a sealing gasket, wherein the front end of the screw rod is screwed into the tail end of the sealing ejector block by threads and assembled into the valve core main body, the tail end of the screw rod penetrates out of the valve core main body, a cavity is arranged in the front end of the screw rod, the spring is arranged in the cavity, the tail end of the sealing push rod is inserted into the sealing ejector block to be in contact with the spring in the cavity at the front end of the screw rod, and the sealing gasket is arranged at the front end of the sealing push rod through a bump;

the check valve core is screwed into one end of the angle valve body through the external thread at the front end of the valve core main body; the hand wheel is fixedly connected with the internal thread of the tail end of the screw rod through a screw.

Preferably, the hand wheel is covered on the valve core main body through a hand wheel decorative ring; the top of the hand wheel is provided with a hand wheel decorative cover.

Preferably, a first O-shaped ring is arranged at the joint of the valve core main body and the angle valve body; the screw rod is connected with the valve core main body and is provided with a second O-shaped ring.

Preferably, the tail end of the screw is clamped with the valve core main body through a buckle.

Preferably, the lower port of the angle valve body is provided with a decorative cover.

Preferably, the sealing top block and the sealing push rod are sleeved with each other, and the sealing top block and the sealing push rod are driven by a hand wheel rotating screw to move horizontally.

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

the sealing push rod of the utility model pushes the sealing gasket to move towards the water outlet end under the elastic force of the spring, and the self pressure of the water liquid at the water outlet end enables the sealing gasket to automatically seal the inside of the water inlet port for water stop sealing, thereby having the function of water stop;

when water enters the water inlet state, the pressure of the water pushes the sealing gasket and the sealing push rod to move backwards to compress the spring, and the water can flow out from the water outlet end;

the hand wheel is rotated and simultaneously the screw rod is driven to rotate, the sealing top block is enabled to move outwards by the rotation of the screw rod, and therefore the sealing push rod and the sealing gasket are pushed to move towards the water inlet end of the angle valve body until the sealing push rod and the sealing gasket are mutually connected with the water inlet end in a sealing mode; the water-stopping function is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of an angle valve for preventing reverse flow of water according to the present invention;

fig. 2 is a schematic perspective view of a stop valve element of an angle valve for preventing reverse flow of water according to the present invention;

fig. 3 is an exploded view of a stop valve element of an angle valve for preventing reverse flow of water according to the present invention;

fig. 4 is a schematic structural view of an angle valve suspension reverse flow valve core capable of preventing reverse flow of water according to the present invention;

FIG. 5 isbase:Sub>A schematic cross-sectional view taken along the line A-A in FIG. 4;

fig. 6 is a schematic overall front view of an angle valve for preventing water from flowing backwards according to the present invention;

FIG. 7 is a schematic structural view of an embodiment of a water-stop state of an angle valve of the present invention for preventing water from flowing backwards;

FIG. 8 is a schematic structural view illustrating an embodiment of a water inlet state of an angle valve for preventing backflow of water according to the present invention;

fig. 9 is a schematic structural view of an embodiment of a water-closing state of the angle valve capable of preventing water from flowing backwards according to the present invention.

The reference numbers illustrate:

1. an angle valve body; 2. a check valve core; 3. a hand wheel; 11. a decorative cover; 21. a valve core main body; 22. a screw; 23. sealing the top block; 24. sealing the push rod; 25. a spring; 26. a gasket; 27. a second O-ring; 28. a first O-ring; 29. buckling; 31. a screw; 32. a hand wheel decorative cover; 33. a hand wheel decorative ring.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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.

Example 1

Referring to fig. 1-6, the present invention provides the following technical solutions: an angle valve capable of preventing water from flowing backwards comprises an angle valve body 1, a check water valve core 2 and a hand wheel 3; the check water valve core 2 penetrates into the angle valve body 1 from one end of the angle valve body 1, and the tail end of the check water valve core 2 is connected with the hand wheel 3;

the anti-reverse water valve core 2 comprises a valve core main body 21, a screw rod 22, a sealing ejector block 23, a sealing push rod 24, a spring 25 and a sealing gasket 26, wherein the front end of the screw rod 22 is screwed into the tail end of the sealing ejector block 23 by threads and assembled into the valve core main body 21, the tail end of the screw rod 22 penetrates out of the valve core main body 21, a cavity is arranged in the front end of the screw rod 22, the spring 25 is arranged in the cavity, the tail end of the sealing push rod 24 is inserted into the cavity from the sealing ejector block 23 to the front end of the screw rod 22 and is in contact with the spring 25, and the sealing gasket 26 is arranged at the front end of the sealing push rod 24 through a bump;

the water-stopping valve core 2 is screwed into one end of the angle valve body 1 through the external thread at the front end of the valve core main body 21; the hand wheel 3 is fixedly connected with the internal thread of the tail end of the screw rod 22 through a screw 31.

Specifically, the hand wheel 3 is covered on the valve core main body 21 through a hand wheel decorative ring 33; the top of the hand wheel 3 is provided with a hand wheel decorative cover 32.

Specifically, a first O-shaped ring 28 is arranged at the joint of the valve core main body 21 and the angle valve body 1; the screw 22 is connected to the valve body 21 and provided with a second O-ring 27.

Specifically, the tail end of the screw 22 is clamped with the valve core main body 21 through a buckle 29.

Specifically, a decorative cover 11 is arranged at the lower port of the angle valve body 1.

Specifically, the sealing top block 23 and the sealing push rod 24 are sleeved with each other, and the sealing top block 23 and the sealing push rod 24 are driven by the hand wheel 3 to rotate the screw rod 22 to move horizontally.

The utility model discloses a theory of operation and use flow: when the utility model is used, the utility model,

as shown in fig. 7, when the angle valve body 1 is in the non-return state, and there is no water entering from the water inlet end of the angle valve body 1, when there is a certain volume of water liquid at the water outlet end, the sealing push rod 24 pushes the sealing pad 26 to move toward the water outlet end under the elastic force of the spring 25, and the pressure of the water liquid at the water outlet end makes the sealing pad 26 automatically seal the inside of the water inlet end to perform non-return sealing, so as to perform the non-return function, and the spring 25 is used for assisting the non-return function.

As shown in fig. 8, when the angle valve body 1 is opened in a water inlet state, water enters the angle valve body 1 from the water inlet end, and the compression spring 25 is moved backwards by the pressure of the water pushing the sealing gasket 26 and the sealing push rod 24, so that the water inlet end and the water outlet end inside the angle valve body 1 are communicated, and the water can be discharged from the water outlet end.

As shown in fig. 9, when the angle valve body 1 is in a water-off state, the hand wheel 3 is rotated to drive the screw rod 22 to rotate, and since the front end of the screw rod 22 is screwed with the tail end of the sealing top block 23, the screw rod 22 rotates to enable the sealing top block 23 to move outwards, so that the sealing push rod 24 and the sealing gasket 26 are pushed to move towards the water inlet end of the angle valve body 1 until the sealing push rod and the sealing gasket are mutually and hermetically connected with the water inlet end; the water-stopping function is realized.

In addition, the angle valve body 1 can be arranged at the cold water inlet end of the water heater, so that the condition that hot water flows into cold water can be avoided; when the pressure of the cold water is lower than that of the hot water, the hot water can flow back to the cold water pipeline, so that the hot water can be generated when the cold water is opened.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An angle valve capable of preventing water from flowing backwards is characterized in that: comprises an angle valve body (1), a check water valve core (2) and a hand wheel (3); the check water valve core (2) penetrates into the angle valve body (1) from one end of the angle valve body (1), and the tail end of the check water valve core (2) is connected with the hand wheel (3);

the anti-reverse water valve core (2) is composed of a valve core main body (21), a screw rod (22), a sealing ejector block (23), a sealing push rod (24), a spring (25) and a sealing gasket (26), wherein the front end of the screw rod (22) is screwed into the tail end of the sealing ejector block (23) in a threaded manner and assembled into the valve core main body (21), the tail end of the screw rod (22) penetrates out of the valve core main body (21), a cavity is formed in the front end of the screw rod (22), the spring (25) is arranged in the cavity, the tail end of the sealing push rod (24) is inserted into the sealing ejector block (23) to be in contact with the spring (25) in the cavity at the front end of the screw rod (22), and the sealing gasket (26) is installed on the front end of the sealing push rod (24) through a convex block;

the check water valve core (2) is screwed into one end of the angle valve body (1) through the external thread at the front end of the valve core main body (21); the hand wheel (3) is fixedly connected with the internal thread of the tail end of the screw rod (22) through a screw (31).

2. An angle valve for preventing backflow of water as defined in claim 1, wherein: the hand wheel (3) is covered on the valve core main body (21) through a hand wheel decorative ring (33); the top of the hand wheel (3) is provided with a hand wheel decorative cover (32).

3. An angle valve for preventing backflow of water as defined in claim 1, wherein: a first O-shaped ring (28) is arranged at the joint of the valve core main body (21) and the angle valve body (1); the screw (22) and the valve core main body (21) are connected and provided with a second O-shaped ring (27).

4. An angle valve for preventing backflow of water according to claim 1, wherein: the tail end of the screw rod (22) is clamped with the valve core main body (21) through a buckle (29).

5. An angle valve for preventing backflow of water as defined in claim 1, wherein: the lower port of the angle valve body (1) is provided with a decorative cover (11).

6. An angle valve for preventing backflow of water as defined in claim 1, wherein: the sealing ejection block (23) and the sealing push rod (24) are mutually sleeved, and the sealing ejection block (23) and the sealing push rod (24) are driven to move horizontally by the hand wheel (3) rotating screw rod (22).