CN209818781U - An integrated ball valve with check function - Google Patents

Abstract

The utility model discloses an integrated ball valve with a check function, which comprises a valve body, a water outlet and a water inlet are arranged at both ends of the valve body, a valve ball A is arranged in the middle of the valve body, and a through internal valve ball A is arranged in the valve body. The side of the inner cavity close to the water inlet is provided with a ejector rod, the ejector rod is provided with a sealing ring, the side of the ejector rod near the water outlet is provided with a valve seat, the body of the ejector rod is also provided with a spring, and the valve ball A The water inlet side and the water outlet side are provided with sealing gaskets, which are closely matched with the valve ball A, the top of the valve stem is connected with the T-shaped rotary handle, and the bottom of the valve body is provided with a temperature sensing element socket. The beneficial effects of the utility model are: it can solve the backflow problem of the medium in the pipeline, simplify the pipeline structure, save space, reduce the risk of leakage in the pipeline, save installation and operation costs, save manpower, facilitate maintenance, prolong the service life, and the required parts Less, simple structure and assembly, the weight of the whole pipeline system is reduced, because the main parts of the check valve are made of plastic material, the cost is lower.

Description

An integrated ball valve with check function

technical field

The utility model relates to a ball valve, in particular to an integrated ball valve with a check function.

Background technique

The existing ball valve drives the rotation of the valve stem through the rotation of the handle, thereby driving the rotation of the valve ball to realize the opening or closing of the pipeline, which can meet the needs of various pressures, various media, and various flows. The existing ball valve cannot timely Effectively prevent the backflow of the medium caused by the pressure difference in the pipeline. If a check valve is added to the pipeline system to prevent the backflow of the medium, the corresponding parts need to be added to meet the use requirements of the check valve, which will inevitably increase the use of the pipeline system. space, increase the cost of the system, and also increase the risk of leakage due to mechanical and sealing properties.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide an integrated ball valve with check function.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the utility model is realized through the following technical scheme, an integrated ball valve with check function, including a valve body, and the two ends of the valve body are respectively provided with a water outlet and a water inlet, A valve ball A is arranged in the middle of the valve body, and a through inner cavity is arranged in the valve ball, and a push rod is arranged on a side of the inner cavity close to the water inlet, and a sealing ring is arranged on the push rod , the side of the ejector rod close to the water outlet is provided with a valve seat, the body of the ejector rod is also provided with a spring, the water inlet side and the water outlet side of the valve ball A are provided with gaskets, the valve The top of the rod is connected with a T-shaped rotary handle, and a temperature-sensing element jack is provided on one side of the valve body.

Preferably, the top of the ejector rod is arc-shaped and provided with a concave groove, and the sealing ring is installed in the concave groove at the top of the ejector rod.

Preferably, the sealing ring is coated with silicone oil.

Preferably, the position of the valve ball A close to the water outlet is provided with a groove for installing the valve seat.

Preferably, the rotation of the valve rod drives the rotation of the valve ball A to open or close the water inlet and the water outlet.

Preferably, both the push rod and the valve seat are made of plastic.

Preferably, a post hole is provided on the upper part of the valve seat, the diameter of the post hole is larger than the diameter of the tail body of the ejector rod, and the tail body of the ejector rod matches the post hole of the valve seat.

The beneficial effect of the utility model is

An integrated valve ball with check function can solve the problem of backflow of the medium in the pipeline, simplify the pipeline structure, save space, reduce the risk of leakage in the pipeline, save installation and operation costs, save manpower, facilitate maintenance, and prolong service life. Fewer parts are required, the structure and assembly are simple, and the weight of the entire pipeline system is reduced. Because the main parts of the check valve are made of plastic, the cost is lower.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the internal components of the valve ball of the present invention.

reference sign

1. Valve stem, 2. Gasket, 3. Push rod, 4. Water inlet, 5. Seal ring, 6. Temperature sensing element jack, 7. T-shaped rotary handle, 8. Valve ball A, 9. Valve body , 10, valve seat, 11, water outlet, 12, spring, 13, inner cavity.

Detailed ways

An integrated ball valve with check function, including handle, valve body, valve stem, water inlet and water outlet, the valve ball is set in the valve body, the upper end of the valve ball is connected with the bottom of the valve stem, and the upper end of the valve stem and the T-shaped rotation The handle is connected, and the valve ball is provided with a through inner cavity. The rotation of the valve stem can drive the rotation of the valve ball, thereby realizing the closure and conduction of the water inlet and the water outlet. There is a check valve in the inner cavity of the valve ball. The valve includes a valve seat, a spring, a push rod and a sealing ring. The top of the push rod is provided with an annular groove, and a sealing ring can be placed in the groove, and the surface of the sealing ring is coated with silicone oil. There is a column hole on the upper part of the valve seat so that the tail rod of the ejector rod can be inserted without jamming. The sealing ring on the ejector rod and the top surface of one end of the inner chamber of the valve ball form the valve port of the check valve, and the valve seat is pressed into the valve ball through a simple fixture, and the valve seat and the valve ball are tightly fitted, which is firm and reliable. There is a return spring between the ejector rod and the valve seat to ensure the smooth realization of the check function in the valve ball. The top of the ejector rod is preset with a curved surface to ensure that when the valve ball rotates, the ejector rod will not interfere with the valve ball. There is a temperature sensing element jack on one side of the valve body, so that the temperature sensing element can be inserted, so as to realize the temperature in the pipeline and provide adjustment reference

Example

As shown in Figure 1-2, an integrated ball valve with a check function includes a valve body 9, with a water outlet 11 and a water inlet 4 at both ends of the valve body 9, and a valve ball A8 in the middle of the valve body 9. The valve ball A8 is provided with a through cavity 13, the side of the cavity 13 close to the water inlet 4 is provided with a push rod 3, the push rod 3 is provided with a sealing ring 5, and the side of the push rod 3 close to the water outlet 11 is provided with a There is a valve seat 10, and a spring 12 is provided on the shaft of the ejector rod 3. The water inlet side and the water outlet side of the valve ball A8 are provided with gaskets, wherein the material of the gasket 2 is polytetrafluoroethylene (PTFE), and the valve stem 1 The top end is connected with the T-shaped rotary handle 7, and the bottom end of the valve body 9 is provided with a temperature sensing element jack 6.

Preferably, the top of the ejector rod 3 is an arc surface and is provided with a concave groove, and the sealing ring 5 is installed in the concave groove at the top of the ejector rod 3 .

Preferably, the sealing ring 5 is coated with silicone oil.

Preferably, the position of the valve ball A8 close to the water outlet 11 is provided with a groove for installing the valve seat 10 .

Preferably, the rotation of the valve rod 1 drives the rotation of the valve ball A8 to open or close the water inlet 4 and the water outlet 11 .

Preferably, both the push rod 3 and the valve seat 10 are made of plastic.

Preferably, the upper part of the valve seat 10 is provided with a post hole, the diameter of the post hole is larger than the diameter of the tail rod body of the ejector rod 3, and the tail rod body of the ejector rod 3 matches the post hole of the valve seat 10.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the content of the utility model within the scope of protection of the utility model.

Claims (7)

1. An integrated ball valve with check function, comprising a valve body (9), characterized in that: the two ends of the valve body (9) are respectively provided with a water outlet (11) and a water inlet (4), the A valve ball A (8) is arranged in the middle of the valve body (9), and a through inner chamber (13) is arranged in the valve ball A (8), and the inner chamber (13) is close to the water inlet (4) One side of the ejector rod (3) is provided with a sealing ring (5), and the side of the ejector rod (3) near the water outlet (11) is provided with a valve seat ( 10), the shaft of the ejector rod (3) is also provided with a spring (12), the water inlet side and the water outlet side of the valve ball A (8) are provided with a gasket (2), and the top of the valve stem (1) is in contact with the T Type rotary handle (7) is connected, and the bottom end of the valve body (9) is provided with a temperature sensing element jack (6). 2. The integrated ball valve with check function according to claim 1, characterized in that: the top of the ejector rod (3) is arc-shaped and has a concave groove, and the sealing ring (5) is installed on the In the concave groove at the top of the push rod (3). 3. The integrated ball valve with check function according to claim 1, characterized in that: one side of the valve body (9) is provided with a temperature sensing element insertion hole. 4. The integrated ball valve with check function according to claim 1, characterized in that: the position of the valve ball A (8) close to the water outlet (11) is provided with the valve seat (10) groove. 5. The integrated ball valve with check function according to claim 1, characterized in that: the rotation of the valve stem (1) drives the rotation of the valve ball A (8) to open or close the water inlet (4 ) and the water outlet (11). 6. The integrated ball valve with check function according to claim 1, characterized in that: the ejector rod (3) and the valve seat (10) are both made of plastic. 7. The integrated ball valve with check function according to claim 1, characterized in that: the upper part of the valve seat (10) is provided with a column hole, and the diameter of the column hole is larger than the diameter of the rod body at the tail of the ejector rod (3) , the tail rod body of the ejector rod (3) is matched with the post hole of the valve seat (10).