Ball valve device

Abstract

The invention relates to the technical field of water purification equipment, particularly provides a ball valve device, and aims at solving the problem that in the prior art, cost is high when a ball valve filter is made of low-lead brass. Therefore, the ball valve device comprises a valve body, a valve ball and an embedded separator, a cavity is formed in the valve body, the valve ball is located in the cavity, a water inlet is formed in the valve body and communicated to the cavity, the embedded separator is annularly arranged in the cavity, and the embedded separator is in sealed connection with the inner wall of the valve body. Based on the structural arrangement, the embedded isolation piece is arranged in the inner cavity of the valve body, water can be prevented from making contact with the surface of the valve body, the content of heavy metal in water is reduced, then the water using safety of a user can be guaranteed, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of water purification equipment, and specifically provides a ball valve device. Background Art

[0002] The city’s water supply pipelines are old and long. Impurities such as rust, silt, and other impurities in the pipelines can cause water-using equipment control failure. Therefore, it is necessary to install a pre-ball valve filter on the water-using equipment. Its main function is to restore the tap water to the standard before leaving the factory and protect downstream equipment.

[0003] Generally, the valve head of the pre-ball valve filter is made of brass. Ordinary brass will continuously precipitate heavy metals into the water if immersed in water for a long time, resulting in excessive heavy metals, which will endanger the health of users. Only the valve head and components of the ball valve filter made of environmentally friendly low-lead brass can meet the national requirements for water quality. However, the price of environmentally friendly low-lead brass is relatively high, which will increase the cost of water filtration.

[0004] Accordingly, the art needs a ball valve device to solve the above technical problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem of high cost of manufacturing ball valve filters using low-lead brass in the prior art.

[0006] To this end, the present invention provides a ball valve device, which includes a valve body, a valve ball and an embedded isolation member.

[0007] A cavity is formed inside the valve body, and the valve ball is located in the cavity.

[0008] The valve body is provided with a water inlet, which is connected to the cavity.

[0009] The embedded isolating member is disposed in the cavity.

[0010] The embedded isolation piece is sealed and connected to the inner wall of the valve body.

[0011] In a specific embodiment of the ball valve device, the embedded isolator is provided with at least one connecting groove.

[0012] The inner wall of the valve body is provided with at least one clamping member.

[0013] The clamping member corresponds to the connecting groove one by one, so that the embedded isolation member is clamped on the inner wall of the valve body.

[0014] In a specific embodiment of the ball valve device, the ball valve device further includes a first sealing member and a first gasket.

[0015] The first sealing member is arranged at the upper end of the embedded isolating member and is in compression contact with the water injection device to be connected.

[0016] The first gasket is arranged between the valve body and the valve ball.

[0017] In a specific embodiment of the above ball valve device, the ball valve device further comprises at least one second sealing member.

[0018] The second sealing member is disposed on the outer side wall of the embedded isolating member and is in compression contact with the valve body.

[0019] In a specific embodiment of the ball valve device, the second sealing member includes an upper sealing ring and a lower sealing ring.

[0020] The upper sealing ring is arranged at the upper end of the embedded isolating member.

[0021] The lower end sealing ring is arranged at the lower end of the embedded isolating member.

[0022] In a specific embodiment of the above ball valve device, the embedded isolation piece is integrally formed with the valve body through an injection molding process.

[0023] In a specific embodiment of the ball valve device, the embedded isolating member includes a first isolating portion and a second isolating portion connected to each other.

[0024] The first isolating portion extends upwardly out of the cavity and abuts against the water injection device to be connected.

[0025] The second isolation portion is fixed in the cavity.

[0026] In a specific embodiment of the above ball valve device, the ball valve device further includes a third sealing member and a second gasket.

[0027] The third sealing member is arranged at the upper end of the first isolating portion and is in compression contact with the water injection device to be connected.

[0028] The second gasket is arranged between the valve body and the valve ball.

[0029] In a specific embodiment of the above ball valve device, the ball valve device further comprises at least one fourth sealing member.

[0030] The fourth sealing member is disposed on the outer side wall of the embedded isolating member.

[0031] In a specific embodiment of the ball valve device, the fourth sealing member includes a first sealing ring and a second sealing ring.

[0032] The first sealing ring is arranged on the upper part of the first isolating part and is in compression contact with the water injection device to be connected.

[0033] The second sealing ring is arranged at the lower part of the second isolating portion and is in extrusion contact with the valve body.

[0034] In the case of adopting the above technical solution, the ball valve device provided by the present invention includes a valve body, a valve ball and an embedded isolator, a cavity is formed inside the valve body, the valve ball is located in the cavity, a water inlet is provided on the valve body, the water inlet is connected to the cavity, the embedded isolator is annularly arranged in the cavity, and the embedded isolator is sealed to the inner wall of the valve body. Based on the above structural setting, the present invention can prevent water from contacting the surface of the valve body by arranging an embedded isolator in the internal cavity of the valve body, so as to reduce the heavy metal content in the water, thereby ensuring the safety of water use by users, and has a simple structure and low cost.

[0035] Furthermore, the ball valve device provided by the present invention defines that the connection between the embedded isolation piece and the inner wall of the valve body is achieved through the connection groove and the clamping piece, so as to enhance the connection strength between the embedded isolation piece and the inner wall of the valve body and prevent the embedded isolation piece from slipping off.

[0036] Furthermore, the ball valve device provided by the present invention includes a first sealing member to achieve sealing of the upper end of the embedded isolation member, thereby preventing water from flowing into the valve body through a gap between the upper end of the embedded isolation member and a water injection device to be connected, thereby causing heavy metal precipitation; and a first gasket to achieve sealing of the lower end of the embedded isolation member, thereby preventing water from flowing into the valve ball through a gap between the lower end of the embedded isolation member and the valve body, thereby causing heavy metal precipitation.

[0037] Furthermore, the ball valve device provided by the present invention realizes radial sealing of the outer wall of the embedded isolation member by setting a second sealing member, thereby preventing water from flowing into the gap between the outer wall of the embedded isolation member and the valve body to cause heavy metal precipitation.

[0038] Furthermore, the ball valve device provided by the present invention defines an upper sealing ring and a lower sealing ring. By sealing the upper and lower ends of the outer wall of the embedded isolation part, the entire embedded isolation part and the valve body can be sealed without setting more sealing rings to save costs.

[0039] Furthermore, the ball valve device provided by the present invention defines that the embedded isolation piece is integrally formed with the valve body through an injection molding process to ensure that the embedded isolation piece and the valve body are tightly connected without any installation gap.

[0040] Furthermore, the ball valve device provided by the present invention includes a first isolating portion provided to achieve abutment between the embedded isolating member and the water injection device to be connected; and a second isolating portion provided to achieve the water isolation function of the embedded isolating member.

[0041] Furthermore, the ball valve device provided by the present invention achieves sealing at the upper end of the first isolation part by setting a third sealing member, thereby preventing water from flowing into the valve body through the gap between the upper end of the first isolation part and the water injection device to be connected, thereby causing heavy metal precipitation; and achieves sealing at the lower end of the second isolation part by setting a second gasket, thereby preventing water from flowing into the valve ball through the gap between the lower end of the second isolation part and the valve body, thereby causing heavy metal precipitation.

[0042] Furthermore, the ball valve device provided by the present invention is provided with a fourth sealing member to achieve radial sealing of the outer wall of the embedded isolation member, thereby preventing water from flowing into the gap between the outer wall of the embedded isolation member and the valve body to cause heavy metal precipitation.

[0043] Furthermore, the ball valve device provided by the present invention defines a first sealing ring and a second sealing ring, and seals the upper part of the first isolation part and the lower part of the second isolation part, thereby sealing the entire embedded isolation part without setting more sealing rings to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0045] Figure 1 is a schematic diagram of the end sealing structure of the first embodiment of the ball valve device provided by the present invention;

[0046] Figure 2 is a schematic diagram of the radial sealing structure of the first embodiment of the ball valve device provided by the present invention;

[0047] Figure 3 is a schematic diagram of the end sealing structure of the second embodiment of the ball valve device provided by the present invention;

[0048] Figure 4 It is a schematic diagram of the radial sealing structure of the second embodiment of the ball valve device provided by the present invention. Reference numerals:

[0049] 1. Valve body; 11. Cavity; 12. Water inlet; 13. Protrusion; 2. Valve ball; 3. Embedded isolation part; 31. First isolation part; 32. Second isolation part; 4. First sealing part; 5. First gasket; 6. Second sealing part; 61. Upper sealing ring; 62. Lower sealing ring; 7. Third sealing part; 8. Second gasket; 9. Fourth sealing part; 91. First sealing ring; 92. Second sealing ring; 01. Water injection device to be connected. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific applications. For example, although this specific embodiment is described in conjunction with the situation where the valve body is applied to a pre-ball valve device, the valve body of the present invention can obviously also be used in other devices. Such changes in the application scenarios do not deviate from the basic principles of the present invention and fall within the scope of protection of the present invention.

[0051] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0052] It should be noted that, in the description of the preferred embodiment, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be directly connected, it can also be indirectly connected through an intermediate medium, it can also be connected inside two elements, and these cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0053] The city’s water supply pipelines are old and long. Impurities such as rust, silt, and other impurities in the pipelines can cause water-using equipment control failure. Therefore, it is necessary to install a pre-ball valve filter on the water-using equipment. Its main function is to restore the tap water to the standard before leaving the factory and protect downstream equipment.

[0054] Generally, the valve head of the front ball valve device is mostly made of brass. Ordinary brass will continuously precipitate heavy metals into the water when immersed in water for a long time, resulting in excessive heavy metals, which will endanger the health of users. Only the valve head and components of the ball valve filter made of environmentally friendly low-lead brass can meet the national requirements for water quality. However, the price of environmentally friendly low-lead brass is relatively high, which will increase the cost of water filtration.

[0055] Therefore, the present invention provides a ball valve device to solve the above technical problems.

[0056] First, see Figure 1 , Figure 1 Schematic diagram of the end sealing structure of the first embodiment of the ball valve device provided by the present invention. Figure 1 As shown, the present invention provides a ball valve device, including a valve body 1, a valve ball 2 and an embedded isolator 3. A cavity 11 is formed inside the valve body 1, the valve ball 2 is located in the cavity 11, a water inlet 12 is provided on the valve body 1, the water inlet 12 is connected to the cavity 11, and the embedded isolator 3 is annularly arranged in the cavity 11, and the embedded isolator 3 is sealed to the inner wall of the valve body 1. Based on the above structural arrangement, the present invention can prevent water from contacting the surface of the valve body 1 by arranging the embedded isolator 3 in the cavity 11 inside the valve body 1, so as to reduce the heavy metal content in the water, thereby ensuring the safety of water use by users, and has a simple structure and low cost.

[0057] The valve body 1 is arranged at the front end of the filter to filter impurities in the water. The valve ball 2 is used as an opening and closing device of the valve body 1 to control the connection or disconnection of the valve body 1. When the valve ball 2 is opened, Figure 1 In the state shown, water can be filtered through the valve body 1. When the valve ball 2 is rotated 90 degrees clockwise to close, the valve body 1 is disconnected and water cannot pass through. It can be understood that the water flow in the valve body 1 can be controlled by the rotation angle of the valve ball 2. The embedded isolation member 3 is arranged on the inner wall of the valve body 1 to isolate the water from the valve body 1 and prevent the precipitation of heavy metals in the valve body 1.

[0058] Specifically, there are two ways to realize the connection between the embedded isolation member 3 and the valve body 1 .

[0059] In the first possible implementation, Figure 1 As shown, the embedded isolator 3 is provided with at least one connecting groove (not shown in the figure), and the inner wall of the valve body 1 is provided with at least one clamping member (not shown in the figure), and the clamping member corresponds to the connecting groove one by one, so that the embedded isolator 3 is clamped to the inner wall of the valve body 1. Through the clamping of the connecting groove and the clamping member, the connection between the embedded isolator 3 and the inner wall of the valve body 1 can be achieved, and then the connection strength between the embedded isolator 3 and the inner wall of the valve body 1 can be enhanced to prevent the embedded isolator 3 from slipping. In this embodiment, the embedded isolator 3 is made of inert material, or at least the surface in contact with water is coated with an inert material coating, and the inert material is selected from any one of rubber, plastic and ceramic.

[0060] It should be noted that the present invention does not impose any restrictions on the specific structure and location of the connection groove and the clamping member. It is only necessary to meet the requirement that the connection groove and the clamping member are clamped with each other. Those skilled in the art can set it according to actual use requirements. For example, the number of clamping members can be set to two, and they can be relatively arranged in the center of the inner wall of the valve body 1 to simplify the assembly process; or, the number of clamping members can be set to multiple, and they can be arranged in a vertical row on the inner wall of the valve body 1 to enhance the connection strength between the embedded isolation member 3 and the inner wall of the valve body 1.

[0061] In this implementation, see Figure 1 The ball valve device provided by the present invention also includes a first seal 4 and a first gasket 5, wherein the first seal 4 is arranged at the upper end of the embedded isolator 3, and is in compression contact with the water injection device 01 to be connected. By setting the first seal 4, the upper end of the embedded isolator 3 is sealed to prevent water from flowing into the valve body 1 from the gap between the upper end of the embedded isolator 3 and the water injection device 01 to be connected, so as to cause heavy metal precipitation. It can be understood that the first seal 4 can be fixed between the upper end of the embedded isolator 3 and the water injection device 01 to be connected by a gluing process, or can be wound and arranged at the upper end of the embedded isolator 3; the first gasket 5 is arranged between the valve body 1 and the valve ball 2, and the first gasket 5 is arranged to achieve the sealing of the lower end of the embedded isolator 3, so as to prevent water from flowing into the valve ball 2 from the gap between the lower end of the embedded isolator 3 and the valve body 1, so as to cause heavy metal precipitation. It should be noted that the present invention does not impose any restrictions on the specific size and material of the first seal 4 and the first gasket 5, and those skilled in the art can set them according to actual use requirements. Optionally, the first sealing member 4 can be an O-ring, and the rubber material of the sealing ring allows the upper end of the embedded isolation member 3 to fit tightly with the water injection device 01 to be connected, thereby achieving good sealing performance; the first gasket 5 can be a PTFE / EPDM composite gasket, which has good chemical resistance and sealing performance by using an EPDM rubber main body.

[0062] In this implementation, the ball valve device also needs to radially seal the embedded isolation member 3, see Figure 2 , Figure 2 It is a schematic diagram of the radial sealing structure of the first embodiment of the ball valve device provided by the present invention. The ball valve device provided by the present invention also includes at least one second sealing member 6, which is arranged on the outer side wall of the embedded isolation member 3 and is in extrusion contact with the valve body 1. By setting the second sealing member 6, the radial sealing of the outer side wall of the embedded isolation member 3 is achieved to prevent water from flowing into the gap between the outer side wall of the embedded isolation member 3 and the valve body 1 to cause heavy metal precipitation. It should be noted that the present invention does not impose any restrictions on the specific size and material of the second sealing member 6, and those skilled in the art can set it according to actual use requirements. Optionally, the second sealing member 6 can be an O-ring, and the rubber material of the sealing ring makes the outer side wall of the embedded isolation member 3 fit tightly with the valve body 1, and has good sealing performance. It can be understood that the second sealing member 6 can be fixed between the outer side wall of the embedded isolation member 3 and the valve body 1 by a gluing process, or it can be wound around the outer side wall of the embedded isolation member 3 by utilizing the elasticity of the O-ring.

[0063] In this preferred embodiment, the second sealing member 6 includes an upper sealing ring 61 and a lower sealing ring 62, wherein the upper sealing ring 61 is arranged around the upper end of the embedded isolating member 3, and the lower sealing ring 62 is arranged around the lower end of the embedded isolating member 3. By sealing the upper and lower ends of the outer wall of the embedded isolating member 3, the entire embedded isolating member 3 and the valve body 1 can be sealed without setting more sealing rings, thereby saving costs. The inner diameters of the upper sealing ring 61 and the lower sealing ring 62 need to be smaller than the outer diameter of the embedded isolating member 3 to ensure a tight fit between the embedded isolating member 3 and the second sealing member 6. Figure 2 As shown, multiple upper sealing rings 61 can be provided to enhance the sealing performance. It should be noted that the present invention does not impose any restrictions on the specific sizes of the upper sealing ring 61 and the lower sealing ring 62, and those skilled in the art can set them according to actual use requirements. It can be understood that when the upper sealing ring 61 and the lower sealing ring are wider, the sealing performance of the embedded isolation member 3 is better, but the cost is higher; anyway, when the upper sealing ring 61 and the lower sealing ring are narrower, the sealing performance of the embedded isolation member 3 is average, which can reduce some costs, and those skilled in the art can set them according to actual use requirements.

[0064] In the second possible implementation, see Figure 3 , Figure 3 It is a schematic diagram of the end sealing structure of the second embodiment of the ball valve device provided by the present invention. The embedded isolator 3 is integrally formed with the valve body 1 through an injection molding process. Specifically, an injection mold is arranged inside the valve body 1, and an embedded isolator 3 attached to the inside of the valve body 1 can be formed by pouring injection liquid into the inside of the valve body 1, so that the embedded isolator 3 can be integrally formed without extending the embedded isolator 3 into the valve body 1. In this preferred embodiment, the material of the embedded isolator 3 is plastic, and the embedded isolator 3 can be completely fitted to the inner wall of the valve body 1 through the plastic injection molding process to avoid a gap between the embedded isolator 3 and the valve body 1. It should be noted that the present invention does not impose any restrictions on the specific size and structure of the embedded isolator 3, and it is only necessary to meet the requirement that the embedded isolator 3 is completely fitted to the inner wall of the valve body 1 and is integrally formed. Those skilled in the art can set it according to actual use requirements. It can be understood that the inner wall of the valve body 1 is also provided with a plurality of protrusions 13, so that the embedded isolation piece 3 obtained by injection molding has a plurality of corresponding connection grooves, and the protrusions 13 are clamped with the connection points to enhance the connection strength between the embedded isolation piece 3 and the valve body 1, thereby preventing the embedded isolation piece 3 from slipping inside the valve body 1.

[0065] In this implementation, the embedded isolation part 3 includes a first isolation part 31 and a second isolation part 32 connected to each other. The first isolation part 31 extends upward from the cavity 11 and abuts against the water injection device 01 to be connected. The second isolation part 32 is fixed in the cavity 11 to realize the water-isolating function of the embedded isolation part 3.

[0066] In this implementation, continue to refer to Figure 3 The ball valve device provided by the present invention also includes a third sealing member 7 and a second gasket 8, wherein the third sealing member 7 is arranged at the upper end of the first isolation part 31, and is in compression contact with the water injection device 01 to be connected. By setting the third sealing member 7, the upper end of the first isolation part 31 is sealed to prevent water from flowing into the valve body 1 from the gap between the upper end of the first isolation part 31 and the water injection device 01 to be connected, so as to cause heavy metal precipitation. It can be understood that the third sealing member 7 can be fixed between the upper end of the first isolation part 31 and the water injection device 01 to be connected by a pasting process, or can be wound and arranged at the upper end of the first isolation part 31; the second gasket 8 is arranged between the valve body 1 and the valve ball 2, and the second gasket 8 is arranged to achieve the sealing of the lower end of the second isolation part 32, so as to prevent water from flowing into the valve ball 2 from the gap between the lower end of the second isolation part 32 and the valve body 1, so as to cause heavy metal precipitation. It should be noted that the present invention does not impose any restrictions on the specific size and material of the third sealing member 7 and the second gasket 8, and those skilled in the art can set them according to actual use requirements.

[0067] In this implementation, the ball valve device also needs to radially seal the embedded isolation member 3, see Figure 4 , Figure 4 It is a schematic diagram of the radial sealing structure of the second embodiment of the ball valve device provided by the present invention. The ball valve device provided by the present invention also includes at least one fourth seal 9, and the fourth seal 9 is arranged on the outer wall of the embedded isolation member 3. By setting the fourth seal 9, the radial sealing of the outer wall of the embedded isolation member 3 is achieved to prevent water from flowing into the gap between the outer wall of the embedded isolation member 3 and the valve body 1 to cause heavy metal precipitation. It should be noted that the present invention does not impose any restrictions on the specific size and material of the fourth seal 9, and those skilled in the art can set it according to actual use requirements.

[0068] In this implementation, the fourth sealing member 9 includes a first sealing ring 91 and a second sealing ring 92, wherein the first sealing ring 91 is arranged on the upper part of the first isolating portion 31 and is in compression contact with the water injection device 01 to be connected, and the second sealing ring 92 is arranged on the lower part of the second isolating portion 32 and is in compression contact with the valve body 1. By sealing the upper part of the first isolating portion 31 and the lower part of the second isolating portion 32, the entire embedded isolating portion 3 can be sealed without providing more sealing rings to save costs. Among them, the inner diameter of the first sealing ring 91 and the second sealing ring 92 needs to be smaller than the outer diameter of the embedded isolating portion 3 to ensure a tight fit between the embedded isolating portion 3 and the second sealing member 6. It should be noted that the present invention does not impose any restrictions on the specific sizes of the first sealing ring 91 and the second sealing ring 92, and those skilled in the art can set them according to actual usage requirements.

[0069] In summary, the present invention can prevent water from contacting the surface of the valve body 1 by setting an embedded isolation member 3 in the internal cavity 11 of the valve body 1, so as to reduce the heavy metal content in the water, thereby ensuring the safety of water for users, and has a simple structure and low cost.

[0070] It should be noted that the above-mentioned implementation mode is only used to illustrate the principle of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.

[0071] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A ball valve device, characterized in that: The ball valve device comprises a valve body, a valve ball and an embedded isolation member. A cavity is formed inside the valve body, and the valve ball is located in the cavity. The valve body is provided with a water inlet, which is connected to the cavity. The embedded isolating member is disposed in the cavity. The embedded isolation piece is sealed and connected to the inner wall of the valve body.

2. The ball valve device according to claim 1, characterized in that: The embedded isolating member is provided with at least one connecting groove, The inner wall of the valve body is provided with at least one clamping member. The clamping member corresponds to the connecting groove one by one, so that the embedded isolation member is clamped on the inner wall of the valve body.

3. The ball valve device according to claim 2, characterized in that: The ball valve device further comprises a first sealing member and a first gasket, The first sealing member is arranged at the upper end of the embedded isolating member and is in compression contact with the water injection device to be connected. The first gasket is arranged between the valve body and the valve ball.

4. The ball valve device according to claim 2 or 3, characterized in that: The ball valve device further comprises at least one second sealing member, The second sealing member is disposed on the outer side wall of the embedded isolating member and is in compression contact with the valve body.

5. The ball valve device according to claim 4, characterized in that: The second sealing member comprises an upper sealing ring and a lower sealing ring, The upper sealing ring is arranged at the upper end of the embedded isolating member. The lower end sealing ring is arranged at the lower end of the embedded isolating member.

6. The ball valve device according to claim 1, characterized in that: The embedded isolating piece is integrally formed with the valve body through an injection molding process.

7. The ball valve device according to claim 6, characterized in that The embedded isolating member comprises a first isolating portion and a second isolating portion connected to each other, The first isolating portion extends upwardly out of the cavity and abuts against the water injection device to be connected. The second isolation portion is fixed in the cavity.

8. The ball valve device according to claim 7, characterized in that: The ball valve device further comprises a third sealing member and a second gasket, The third sealing member is arranged at the upper end of the first isolating portion and is in compression contact with the water injection device to be connected. The second gasket is arranged between the valve body and the valve ball.

9. The ball valve device according to any one of claims 6 to 8, characterized in that: The ball valve device further comprises at least one fourth sealing member, The fourth sealing member is disposed on the outer side wall of the embedded isolating member.

10. The ball valve device according to claim 9, characterized in that The fourth sealing member includes a first sealing ring and a second sealing ring, The first sealing ring is arranged on the upper part of the first isolating part and is in compression contact with the water injection device to be connected. The second sealing ring is arranged at the lower part of the second isolating portion and is in extrusion contact with the valve body.

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