CN212960082U

CN212960082U - Stop valve

Info

Publication number: CN212960082U
Application number: CN202021378435.7U
Authority: CN
Inventors: 曹智勇
Original assignee: Zhejiang Lingteng Foundry Technology Co ltd
Current assignee: Zhejiang Lingteng Foundry Technology Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-04-13
Anticipated expiration: 2030-07-14

Abstract

A stop valve comprises a valve body, wherein the top of the valve body is in threaded connection with a valve cover, the left side of the valve body is provided with a water inlet, the right side of the valve body is provided with a water outlet, a water inlet cavity, a water blocking cavity and a water discharging cavity are sequentially arranged in the valve body from the water inlet to the water outlet, the water inlet cavity is communicated with the water blocking cavity through a vertical diversion hole, the water blocking cavity is communicated with the water discharging cavity through a transverse diversion hole, and a ball body blocking the transverse diversion hole is arranged in the water blocking cavity; the ball valve is characterized in that a through hole is formed in the upper portion of the ball body and the valve cover, a valve rod is connected to the through hole in an internal thread mode, a hand wheel is fixedly connected to the top of the valve rod, and an annular block is arranged at the bottom of the valve rod.

Description

Stop valve

Technical Field

The utility model relates to the technical field of valves, specifically relate to a stop valve.

Background

A shut-off valve is the most widely used valve. Because the friction force between the sealing surfaces is small in the opening and closing process, the sealing ring is durable, the opening height is small, the manufacturing is easy, the maintenance is convenient, and the sealing ring is not only suitable for medium and low pressure environments, but also suitable for high pressure environments. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of the valve rod, and the medium is prevented from flowing.

Because the stop valve does not have the non return function, when the stop valve is in the open mode, the fluid in the oral cavity probably can take place the backward flow, get into the pipeline upper reaches easily and cause the pollution, so generally adopt stop valve and check valve simultaneously, come the flow direction of flow medium in the control pipeline through these two kinds of valves, often adopt stop valve and check valve all to be separately, communicate through stop valve and check valve and carry out the end and the non return, it is loaded down with trivial details like this to install, the assembly number of times is many, it is also loaded down with trivial details to operate simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stop valve to overcome prior art and adopt a stop valve and a check valve simultaneously usually, it is more loaded down with trivial details in the piping installation, the assembly number of times is many, influences the not enough of leakproofness.

The utility model aims at realizing through the following technical scheme:

In one embodiment, the width of the water shut-off chamber is greater than the diameter of the sphere.

In one embodiment, the diameter of the vertical deflector hole is smaller than the diameter of the sphere.

In one embodiment, the diameter of the lateral diversion holes is smaller than the diameter of the sphere.

In one embodiment, the height of the water shut-off chamber is at least 2 times the diameter of the sphere.

In one embodiment, the sphere is made of plastic and the sphere is a hollow sphere.

In one embodiment, both ends of the vertical diversion hole and the horizontal diversion hole are arc-shaped end faces.

The utility model has the advantages that:

1. the utility model discloses a combine two kinds of valves commonly used, in the pipeline equipment that gaseous or liquid is defeated to be led, only need with such a valve just can, save the assembly number of times simultaneously and assemble the part consumptive material few, with low costs, simple to operate.

2. The utility model discloses a water inlet cavity, water shutoff cavity, drainage cavity have been equipped with in proper order from the water inlet to the drain outlet in the valve body, the water inlet cavity through vertical water conservancy diversion hole with water shutoff cavity intercommunication, water shutoff cavity through horizontal water conservancy diversion hole with drainage cavity intercommunication, be provided with in the water shutoff cavity and plug up the spheroid in horizontal water conservancy diversion hole; spheroidal top be provided with the through-hole on the valve gap, through-hole female connection has the valve rod, the top fixedly connected with hand wheel of valve rod, the bottom of valve rod is provided with the annular piece to constitute a valve through check valve and stop valve, make the utility model discloses a valve has non return function and stop function simultaneously.

Drawings

Fig. 1 is the structure schematic diagram of the stop valve when water is cut off.

Fig. 2 is the structure schematic diagram of the stop valve when water is supplied.

In the figure: 15. the water shutoff valve comprises a water shutoff cavity 16, a vertical diversion hole 17, a horizontal diversion hole 20, a valve cover 22, a valve rod 23, a hand wheel 24, an annular block 30, a water inlet 35, a water inlet cavity 40, a water outlet 45, a water drainage cavity 50 and a ball body.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, feature details such as specific configurations and components are provided only to help a full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The utility model provides a stop valve.

As shown in fig. 1-2, a stop valve, includes the valve body, the top threaded connection of valve body has valve gap 20, water inlet 30 has been seted up in the left side of valve body, outlet 40 has been seted up on the right side of valve body, from this, when opening the valve, water gets into from water inlet 30, discharges away from outlet 40, and further, as shown in the figure, follow in the valve body water inlet 30 extremely outlet 40 department is equipped with intake antrum 35, stifled water cavity 15, drainage cavity 45 in proper order, intake antrum 35 through vertical water conservancy diversion hole 16 with stifled water cavity 15 intercommunication, stifled water cavity 15 through horizontal water conservancy diversion hole 17 with drainage cavity 45 intercommunication, specifically, vertical water conservancy diversion hole 16 and horizontal water conservancy diversion hole 17 are circular water conservancy diversion hole, and vertical water conservancy diversion hole 16 and horizontal water conservancy diversion hole 17 both ends are the arc terminal surface.

Further, a sphere 50 blocking the transverse diversion hole 17 is arranged in the water blocking cavity 15, the sphere 50 is made of plastic, and the sphere 50 is a hollow sphere, specifically, the diameter of the sphere 50 is smaller than the width of the water blocking cavity 15, so that the sphere 50 can float in the water blocking cavity 15 by the buoyancy of water.

Further, the diameter of the vertical diversion hole 16 is smaller than that of the ball 50, so that the vertical diversion hole 16 can prevent the ball 50 from entering the water inlet cavity 35, and the ball plays a role in non-return diversion in the water blocking cavity 15.

Further, the diameter of the transverse diversion hole 17 is smaller than that of the ball 50, so that the ball 50 can block the transverse diversion hole 17 when the valve is empty of water, thereby preventing water in the drainage cavity 45 from being diverted, and playing a role in stopping the flow.

Further, the height of the water blocking chamber 15 is at least 2 times the diameter of the ball 50. From this, when leading to water in the stop valve, horizontal water conservancy diversion hole 17 is being stopped up to spheroid 50 originally, and after the water intaking in stifled water cavity 15, spheroid 50 density is less than the density of water, and then floats the spheroid from horizontal water conservancy diversion hole 17 in through water for water gets into water drainage cavity 45 through horizontal water conservancy diversion hole 17 and discharges away.

In addition, the arc-shaped end surfaces at the two ends of the vertical diversion hole 16 and the transverse diversion hole 17 can be matched with the ball 50 to enable the transverse diversion hole 17 and the ball 50 to achieve better sealing, and further prevent water in the drainage cavity 45 from flowing back.

Further, a through hole is formed above the ball 50 and on the valve cover 20, a valve rod 22 is connected to the through hole in a threaded manner, a hand wheel 23 is fixedly connected to the top of the valve rod 22, and an annular block 24 is arranged at the top of the valve rod 22, so that when the stop valve of the present invention is used, when the stop valve needs to be stopped, the hand wheel 23 is rotated to allow the valve rod 22 to go down, and the annular block 24 is rotated down to abut against the top of the ball 50, so that the ball 50 blocks the transverse diversion hole 17, thereby achieving the stopping function; when the water drainage device does not need to be stopped, the hand wheel 23 is only required to be rotated, so that the valve rod 22 is rotated upwards, the ball body 50 can float under the action of water, and the water enters the water drainage cavity 45 through the transverse diversion hole 17 and is drained.

The principle of the utility model is as follows: when the stop valve of the utility model is not in water, the ball 50 blocks the transverse diversion hole 17, and the annular block 24 on the valve rod 22 can be abutted against the ball 50 or not abutted against the ball 50, so that when the stop valve is required, the annular block 24 on the valve rod 22 is abutted against the ball 50 to achieve the function of stopping water; when the stop valve of the utility model needs to be supplied with water, water enters the water inlet cavity 35 from the water inlet 30, when the water level in the water inlet cavity 35 crosses the vertical diversion hole 16, the water enters the water blocking cavity 15 through the vertical diversion hole 16, when the water in the water blocking cavity 15 reaches a certain water level, the density of the sphere 50 is smaller than that of the water, and then the sphere 50 is floated from the transverse diversion hole 17 through the water, so that the water enters the drainage cavity 45 through the transverse diversion hole 17 and is discharged through the drainage outlet 40; when the stop valve of the utility model needs to be stopped, the hand wheel 23 is rotated to enable the valve rod 22 to move downwards, and the annular block 24 rotates downwards to be abutted against the top of the sphere 50, so that the sphere 50 blocks the transverse diversion hole 17, and the stop function is further achieved; when the water drainage device does not need to be stopped, the hand wheel 23 is only required to be rotated, so that the valve rod 22 is rotated upwards, the ball body 50 can float under the action of water, and the water enters the water drainage cavity 45 through the transverse diversion hole 17 and is drained.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a stop valve, includes the valve body, the top threaded connection of valve body has valve gap (20), water inlet (30) have been seted up in the left side of valve body, outlet (40), its characterized in that have been seted up to the right side of valve body: a water inlet cavity (35), a water blocking cavity (15) and a water discharging cavity (45) are sequentially arranged in the valve body from the water inlet (30) to the water discharging opening (40), the water inlet cavity (35) is communicated with the water blocking cavity (15) through a vertical flow guide hole (16), the water blocking cavity (15) is communicated with the water discharging cavity (45) through a transverse flow guide hole (17), and a ball body (50) blocking the transverse flow guide hole (17) is arranged in the water blocking cavity (15); the ball valve is characterized in that a through hole is formed in the valve cover (20) above the ball body (50), a valve rod (22) is connected to the through hole in an inner threaded mode, a hand wheel (23) is fixedly connected to the top of the valve rod (22), and an annular block (24) is arranged at the bottom of the valve rod (22).

2. A shut-off valve as claimed in claim 1, wherein: the width of the water plugging cavity (15) is larger than the diameter of the ball body (50).

3. A shut-off valve as claimed in claim 2, wherein: the diameter of the vertical diversion hole (16) is smaller than that of the sphere (50).

4. A shut-off valve as claimed in claim 3, wherein: the diameter of the transverse diversion hole (17) is smaller than that of the sphere (50).

5. A shut-off valve as claimed in claim 4, wherein: the height of the water plugging cavity (15) is at least 2 times of the diameter of the ball body (50).

6. A shut-off valve as claimed in claim 5, wherein: the sphere (50) is made of plastic, and the sphere (50) is a hollow sphere.

7. A shut-off valve as claimed in claim 6, wherein: the two ends of the vertical diversion hole (16) and the transverse diversion hole (17) are arc end faces.