High-flow straight-through type double-loose-joint ball valve

Abstract

The utility model relates to the technical field of double-loose-joint ball valves, and discloses a large-flow straight-through type double-loose-joint ball valve which comprises a valve body, a valve ball is arranged in the valve body, a connecting groove is formed in the outer side wall of the valve ball, a rotating rod is arranged on the connecting groove, and the rotating rod is fixedly connected with the valve ball through the connecting groove. The end, away from the valve ball, of the rotating rod penetrates through the outer wall of one side of the valve body and is rotationally connected with the outer wall of one side of the valve body, a sealing assembly is arranged on the rotating rod, the outer side of the rotating rod is rotationally sleeved with a fixing column, the bottom end of the fixing column is fixedly connected to the outer wall of one side of the valve body, and a limiting assembly is arranged in the fixing column. When the valve ball is adjusted to the required position, the button is released, the elastic force of the spring pushes the button back to the original position, the second clamping tooth is matched with the first clamping tooth again, and the rotating rod is locked to the required position.

Description

Technical Field

[0001] The utility model relates to the technical field of double live-joint ball valves, and in particular to a large-flow straight-through double live-joint ball valve. Background Art

[0002] Straight-through double union ball valve is a kind of pipe fitting widely used in many industrial fields, such as oil refining, chemical industry, papermaking, etc. This ball valve is designed to control the flow of fluid (such as water, oil, chemical liquid, etc.) through manual operation, so as to cut off and connect the medium in the pipeline, as well as control and regulate the flow of the fluid.

[0003] The existing devices have some disadvantages during use. For example, the external structure of the handle of the existing straight-through double-joint ball valve is relatively long. During use, the operator is prone to accidentally touch the handle, causing the handle to be pushed and rotated, thereby causing the risk of accidental opening and closing of the ball core and misoperation. Such misoperation will bring about problems such as instability of the pipeline system, fluid leakage or improper flow control. Utility Model Content

[0004] The utility model aims to provide a large flow straight-through double-joint ball valve, which solves the problem that an operator may accidentally touch a handle during use, causing the handle to be pushed and rotated.

[0005] The utility model provides the following technical solutions: a large-flow straight-through double-joint ball valve, comprising a valve body, a valve ball is arranged inside the valve body, an outer side wall of the valve ball is provided with a connecting groove, a rotating rod is arranged on the connecting groove, the rotating rod is fixedly connected to the valve ball through the connecting groove, an end of the rotating rod away from the valve ball passes through an outer side wall of the valve body and is rotatably connected to an outer side wall of the valve body, a sealing assembly is arranged on the rotating rod, a fixing column is rotatably sleeved on the outer side of the rotating rod, the bottom end of the fixing column is fixedly connected to an outer side wall of the valve body, a limiting assembly is arranged inside the fixing column, a handle is fixedly connected to an outer side wall of the top of the fixing column, and a water inlet assembly and a water outlet assembly are respectively arranged at two ends of the valve body.

[0006] In the above scheme, precise control of the opening and closing state of the valve ball is achieved through the fixed connection between the rotating rod and the valve ball, and the rotation of the rotating rod in the fixed column. This design ensures that the opening and closing operations of the valve ball are accurate and meets the needs of precise control of the fluid flow. The sealing assembly arranged on the rotating rod ensures the sealing performance of the valve ball when in use or in the closed state, effectively prevents fluid leakage, and improves the safety and reliability of the system. The limit assembly arranged inside the fixed column ensures the stability of the rotating rod in a specific position, avoiding accidental opening or closing of the valve ball due to misoperation. The handle design allows the operator to easily control the opening and closing of the valve ball.

[0007] As a preferred embodiment of the above technical solution, the limiting assembly includes a plurality of first latch teeth fixedly connected to the inner top wall of the fixed column in an annular array, a button is provided at the top of the rotating rod, the end of the button away from the rotating rod passes through the top of the fixed column and is rotatably connected to the top of the fixed column, a plurality of second latch teeth are fixedly connected to the outer side of the button in an annular array, the second latch teeth are used in conjunction with the first latch teeth, a spring is provided at the bottom end of the button, and the spring is provided on the assembly end of the rotating rod.

[0008] In the above scheme, when it is necessary to adjust the opening or closing state of the valve ball, the button is pressed to overcome the resistance of the spring and move downward, so that the locking relationship between the second latch tooth and the first latch tooth is released, so that the rotating rod can rotate freely, and the operator can rotate the rotating rod to adjust the state of the valve ball. When the adjustment is completed, the elastic force of the spring will push the button back to its original position when the button is released. At this time, the second latch tooth will cooperate with the first latch tooth again to lock the rotating rod in the desired position. In the locked state, even if the valve ball is impacted by external force or misoperation, the rotating rod will not move due to the locking effect of the second latch tooth and the first latch tooth, thereby avoiding accidental opening and closing and misoperation of the valve ball and improving the safety of the pipeline system.

[0009] As a preferred embodiment of the above technical solution, the sealing assembly includes two first sealing grooves annularly opened on the outer side of the rotating rod, the two first sealing grooves are arranged up and down, and corresponding sealing rings are respectively sleeved on the outer sides of the two first sealing grooves.

[0010] In the above solution, double sealing protection is provided for the valve ball through the upper and lower first sealing grooves and the corresponding sealing rings. This design greatly enhances the sealing performance of the valve ball and effectively reduces the risk of fluid leakage.

[0011] As a preferred embodiment of the above technical solution, the water inlet assembly includes a first threaded sleeve threadedly sleeved on the outer side of one end of the valve body, a water inlet joint is sleeved inside the first threaded sleeve, a second sealing groove is annularly opened at one end of the valve body, a first sealing gasket is arranged inside the second sealing groove, and an end of the water inlet joint close to the first sealing gasket is in conflict with the first sealing gasket.

[0012] In the above scheme, the water inlet joint can be firmly connected to the valve body through the threaded sleeve connection between the first threaded sleeve and one end of the valve body. This connection method not only ensures the stability of the connection, but also makes installation and disassembly convenient and quick. The first sealing gasket arranged inside the second sealing groove contacts with one end of the water inlet joint to form a tight sealing interface. This design effectively prevents water leakage from the connection and ensures the sealing performance inside the valve body.

[0013] As a preferred embodiment of the above technical solution, the water outlet assembly includes a second threaded sleeve threadedly sleeved on the outside of one end of the valve body, a water outlet joint is sleeved inside the second threaded sleeve, a third sealing groove is annularly opened at one end of the valve body, a second sealing gasket is arranged inside the third sealing groove, one end of the water outlet joint close to the second sealing gasket is in conflict with the second sealing gasket, and a filter assembly is arranged on the inside of the water outlet joint.

[0014] In the above scheme, the water outlet joint can be firmly connected to the valve body through the threaded sleeve connection between the second threaded sleeve and one end of the valve body. This connection method not only ensures the stability of the connection, but also makes installation and disassembly convenient and quick, and improves the maintainability of the equipment. The second sealing gasket arranged inside the third sealing groove tightly contacts one end of the water outlet joint to form a reliable sealing interface. This design effectively prevents water leakage from the connection, ensures the sealing performance inside the valve body, and thus ensures the normal operation of the equipment. The filter component arranged inside the water outlet joint can filter the water flowing through, remove impurities and particulate matter therein, and improve the purity of the water quality.

[0015] As a preferred embodiment of the above technical solution, the filter assembly includes a first filter screen arranged inside the water outlet joint, the inner wall of the water outlet joint close to the second sealing gasket is fixedly connected to the first filter screen, and the inner wall of the water inlet joint close to the first sealing gasket is fixedly connected to the second filter screen.

[0016] In the above solution, impurities, particulate matter and other harmful substances in the water can be effectively filtered out by the first filter net and the second filter net, thereby ensuring the purity of the water quality.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the utility model, the locking relationship between the second latching tooth and the first latching tooth is released by pressing a button, so that the rotating rod can rotate freely, thereby adjusting the opening or closing state of the valve ball. After the valve ball state is adjusted, the button is released, and the elastic force of the spring pushes the button back to its original position, and the second latching tooth cooperates with the first latching tooth again to lock the rotating rod in a desired position. This locking mechanism ensures that even if the valve ball is impacted by external force or misoperation, the rotating rod will not move, thereby avoiding accidental opening and closing of the valve ball and improving the safety of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a large flow straight-through double live-joint ball valve;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the valve body in a large flow straight-through double live-joint ball valve;

[0021] Figure 3It is a schematic diagram of the cross-sectional structure of a valve ball in a large flow straight-through double live-joint ball valve;

[0022] Figure 4 It is a schematic diagram of the first explosion structure of a large flow straight-through double live-joint ball valve;

[0023] Figure 5 It is a schematic diagram of the second explosion structure of a large flow straight-through double live-joint ball valve;

[0024] Figure 6 Schematic diagram of the explosion structure of the limiting component.

[0025] In the figure: 10, valve body; 11, valve ball; 12, connecting groove; 13, rotating rod; 14, fixing column; 15, handle; 20, first latch tooth; 21, button; 22, second latch tooth; 23, spring; 30, first sealing groove; 31, sealing ring; 40, first threaded sleeve; 41, water inlet joint; 42, second sealing groove; 43, first sealing gasket; 50, second threaded sleeve; 51, water outlet joint; 52, third sealing groove; 53, second sealing gasket; 60, first filter screen; 61, second filter screen. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Example 1

[0028] like Figure 1 , Figure 4 and Figure 5As shown, the utility model provides a technical solution: a large-flow straight-through double-jointed ball valve, including a valve body 10, a valve ball 11 is arranged inside the valve body 10, a connecting groove 12 is opened on the outer wall of the valve ball 11, a rotating rod 13 is arranged on the connecting groove 12, the rotating rod 13 is fixedly connected to the valve ball 11 through the connecting groove 12, the end of the rotating rod 13 away from the valve ball 11 passes through the outer wall of one side of the valve body 10 and is rotatably connected to the outer wall of one side of the valve body 10, a sealing component is arranged on the rotating rod 13, a fixing column 14 is rotatably sleeved on the outer side of the rotating rod 13, the bottom end of the fixing column 14 is fixedly connected to the outer wall of one side of the valve body 10, a limiting component is arranged inside the fixing column 14, a handle 15 is fixedly connected to the outer wall of one side of the top of the fixing column, and a water inlet component and a water outlet component are respectively arranged at both ends of the valve body 10 Components, during specific use, the fixed connection between the rotating rod 13 and the valve ball 11, and the rotation of the rotating rod 13 in the fixed column 14 are used to achieve precise control of the opening and closing state of the valve ball 11. This design ensures that the opening and closing operations of the valve ball 11 are accurate and meet the demand for precise control of the fluid flow. The sealing component arranged on the rotating rod 13 ensures the sealing performance of the valve ball 11 when in use or in the closed state, effectively prevents fluid leakage, and improves the safety and reliability of the system. The limit assembly arranged inside the fixed column 14 ensures the stability of the rotating rod 13 at a specific position, and avoids accidental opening or closing of the valve ball 11 due to misoperation. The design of the handle 15 allows the operator to easily control the opening and closing of the valve ball 11.

[0029] As an implementation method in this embodiment, Figure 3 and Figure 6As shown, the limit assembly includes a plurality of first latch teeth 20 fixedly connected to the inner top wall of the fixed column 14 in an annular array, a button 21 is arranged at the top of the rotating rod 13, and the end of the button 21 away from the rotating rod 13 passes through the top of the fixed column 14 and is rotatably connected to the top of the fixed column 14, and a plurality of second latch teeth 22 are fixedly connected to the outer side of the button 21 in an annular array, and the second latch teeth 22 are used in conjunction with the first latch teeth 20, and a spring 23 is arranged at the bottom end of the button 21, and the spring 23 is arranged on the assembly end of the rotating rod 13. In the specific use process, when it is necessary to adjust the opening or closing state of the valve ball 11, the button 21 is pressed to overcome the resistance of the spring 23 and move downward, so that the second latch teeth 22 are fixedly connected to the outer side of the button 21. The locking relationship between the tooth 22 and the first latch tooth 20 is released, so that the rotating rod 13 can rotate freely. The operator can rotate the rotating rod 13 to adjust the state of the valve ball 11. When the adjustment is completed, the elastic force of the spring 23 will push the button 21 back to its original position when the button 21 is released. At this time, the second latch tooth 22 will cooperate with the first latch tooth 20 again to lock the rotating rod 13 in the desired position. In the locked state, even if the valve ball 11 is impacted by external force or misoperation, the rotating rod 13 will not move due to the locking effect of the second latch tooth 22 and the first latch tooth 20, thereby avoiding accidental opening and closing and misoperation of the valve ball 11 and improving the safety of the pipeline system.

[0030] As an implementation method in this embodiment, Figure 3 and Figure 6 As shown, the sealing assembly includes two first sealing grooves 30 annularly opened on the outside of the rotating rod 13, the two first sealing grooves 30 are arranged up and down, and corresponding sealing rings 31 are respectively sleeved on the outside of the two first sealing grooves 30. During specific use, the valve ball 11 is provided with double sealing protection through the upper and lower first sealing grooves 30 and the corresponding sealing rings 31. This design greatly enhances the sealing performance of the valve ball 11 and effectively reduces the risk of fluid leakage.

[0031] As an implementation method in this embodiment, Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the water inlet assembly includes a first threaded sleeve 40 threadedly sleeved on the outer side of one end of the valve body 10, a water inlet connector 41 is sleeved inside the first threaded sleeve 40, a second sealing groove 42 is annularly opened at one end of the valve body 10, a first sealing gasket 43 is arranged inside the second sealing groove 42, and one end of the water inlet connector 41 close to the first sealing gasket 43 is in conflict with the first sealing gasket 43. During specific use, the water inlet connector 41 can be firmly connected to the valve body 10 through the threaded sleeve connection between the first threaded sleeve 40 and one end of the valve body 10. This connection method not only ensures the stability of the connection, but also makes installation and disassembly convenient and quick. The first sealing gasket 43 arranged inside the second sealing groove 42 is in conflict with one end of the water inlet connector 41 to form a tight sealing interface. This design effectively prevents water leakage from the connection and ensures the sealing performance inside the valve body 10.

[0032] As an implementation method in this embodiment, Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the water outlet assembly includes a second threaded sleeve 50 threadedly sleeved on the outer side of one end of the valve body 10, a water outlet joint 51 is sleeved inside the second threaded sleeve 50, a third sealing groove 52 is annularly opened at one end of the valve body 10, a second sealing gasket 53 is arranged inside the third sealing groove 52, one end of the water outlet joint 51 close to the second sealing gasket 53 is in conflict with the second sealing gasket 53, a filter assembly is arranged on the inner side of the water outlet joint 51, and during specific use, the water outlet joint 51 can be firmly connected to the valve body 10 through the threaded sleeve connection between the second threaded sleeve 50 and one end of the valve body 10. This connection method not only ensures the stability of the connection, but also makes installation and disassembly convenient and quick, and improves the maintainability of the equipment. The second sealing gasket 53 arranged inside the third sealing groove 52 is tightly in contact with one end of the water outlet joint 51 to form a reliable sealing interface. This design effectively prevents water from leaking from the connection, ensures the sealing performance inside the valve body 10, and thus ensures the normal operation of the equipment. The filter component arranged on the inner side of the water outlet joint 51 can filter the water flowing through, remove impurities and particulate matter therein, and improve the purity of the water quality.

[0033] As an implementation method in this embodiment, Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the filter assembly includes a first filter screen 60 arranged inside the water outlet joint 51, and the inner wall of the water outlet joint 51 on one side close to the second sealing gasket 53 is fixedly connected to the first filter screen 60, and the inner wall of the water inlet joint 41 on one side close to the first sealing gasket 43 is fixedly connected to the second filter screen 61. During specific use, the first filter screen 60 and the second filter screen 61 can effectively filter out impurities, particulate matter and other harmful substances in the water, thereby ensuring the purity of the water quality.

[0034] Working principle: Rotate the first threaded sleeve 40 to match the thread at one end of the valve body 10, and then firmly connect the water inlet joint 41 to the valve body 10 through the first threaded sleeve 40, ensuring that the first sealing gasket 43 is in close contact with one end of the water inlet joint 41 to form a tight sealing interface. Similarly, rotate the second threaded sleeve 50, and firmly connect the water outlet joint 51 to the other end of the valve body 10 through the second threaded sleeve 50, ensuring that the second sealing gasket 53 is in close contact with one end of the water outlet joint 51 to form a reliable sealing interface. During the installation process, the threaded sleeve can be properly tightened to ensure the stability and sealing performance of the connection. The lower button 21 overcomes the resistance of the spring 23 and moves downward, so that the locking relationship between the second latch tooth 22 and the first latch tooth 20 is released, and the handle is turned to drive the rotating rod 13 to adjust the open or closed state of the valve ball 11. When it is adjusted to the desired position, the button 21 is released, and the elastic force of the spring 23 pushes the button 21 back to its original position, and the second latch tooth 22 cooperates with the first latch tooth 20 again to lock the rotating rod 13 in the desired position. The first filter screen 60 and the second filter screen 61 on the inner side of the water inlet joint 41 and the water outlet joint 51 can effectively filter out impurities, particulate matter and other harmful substances in the water to ensure the purity of the water quality.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A large flow straight-through double flexible ball valve, comprising a valve body (10), characterized in that: A valve ball (11) is arranged inside the valve body (10), and a connecting groove (12) is provided on the outer wall of the valve ball (11), and a rotating rod (13) is arranged on the connecting groove (12), and the rotating rod (13) is fixedly connected to the valve ball (11) through the connecting groove (12), and the end of the rotating rod (13) away from the valve ball (11) passes through the outer wall of one side of the valve body (10) and is rotatably connected to the outer wall of one side of the valve body (10), and a sealing component is arranged on the rotating rod (13), and a fixing column (14) is rotatably sleeved on the outer side of the rotating rod (13), and the bottom end of the fixing column (14) is fixedly connected to the outer wall of one side of the valve body (10), and a limiting component is arranged inside the fixing column (14), and a handle (15) is fixedly connected to the outer wall of one side of the top of the fixing column, and a water inlet component and a water outlet component are respectively arranged at two ends of the valve body (10); The limiting assembly comprises a plurality of first latching teeth (20) which are fixedly connected to the inner top wall of the fixed column (14) in an annular array; a button (21) is arranged at the top end of the rotating rod (13); an end of the button (21) which is away from the rotating rod (13) passes through the top end of the fixed column (14) and is rotatably connected to the top end of the fixed column (14); a plurality of second latching teeth (22) are fixedly connected to the outer side of the button (21) in an annular array; the second latching teeth (22) are used in conjunction with the first latching teeth (20); a spring (23) is arranged at the bottom end of the button (21); and the spring (23) is arranged on the assembly end of the rotating rod (13).

2. A large flow straight-through double live-joint ball valve according to claim 1, characterized in that: The sealing assembly comprises two first sealing grooves (30) annularly opened on the outside of the rotating rod (13), the two first sealing grooves (30) being arranged up and down, and corresponding sealing rings (31) are respectively sleeved on the outside of the two first sealing grooves (30).

3. A large flow straight-through double live-joint ball valve according to claim 1, characterized in that: The water inlet assembly comprises a first threaded sleeve (40) threadedly sleeved on the outer side of one end of the valve body (10), a water inlet joint (41) being sleeved inside the first threaded sleeve (40), a second sealing groove (42) being annularly provided at one end of the valve body (10), a first sealing gasket (43) being arranged inside the second sealing groove (42), and an end of the water inlet joint (41) close to the first sealing gasket (43) being in contact with the first sealing gasket (43).

4. A large flow straight-through double live-joint ball valve according to claim 3, characterized in that: The water outlet assembly comprises a second threaded sleeve (50) threadedly sleeved on the outer side of one end of the valve body (10), a water outlet joint (51) being sleeved inside the second threaded sleeve (50), a third sealing groove (52) being annularly provided at one end of the valve body (10), a second sealing gasket (53) being arranged inside the third sealing groove (52), an end of the water outlet joint (51) close to the second sealing gasket (53) being in contact with the second sealing gasket (53), and a filter assembly being arranged inside the water outlet joint (51).

5. A large flow straight-through double live-joint ball valve according to claim 4, characterized in that: The filter assembly comprises a first filter screen (60) arranged inside the water outlet joint (51); an inner wall of one side of the water outlet joint (51) close to the second sealing gasket (53) is fixedly connected to the first filter screen (60); and an inner wall of one side of the water inlet joint (41) close to the first sealing gasket (43) is fixedly connected to the second filter screen (61).

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