Ball valve capable of reducing fluid impact

Abstract

The utility model relates to a ball valve capable of reducing fluid impact, which comprises a valve body, a ball body, a valve rod and a valve seat, a fluid channel is arranged in the valve body, the valve seat is arranged on the valve body, the valve rod drives the ball body to rotate and is provided with a cut-off position for cutting off the fluid channel together with the valve seat, and the ball valve comprises a matching pipe, a fixing ring, a rotating shaft, a rotating plate and a reset piece. The matching pipe is detachably fixed to the valve body and is opposite to the fluid channel, the fixing ring is arranged in the matching pipe, the rotating shaft is rotationally arranged on the fixing ring, the rotating plate is arranged on the rotating shaft and rotates along with the rotating shaft, and the reset piece is located between the rotating plate and the fixing ring and drives the rotating plate to rotate in the direction attached to the fixing ring. The utility model provides a ball valve capable of reducing fluid impact.

Description

Technical Field

[0001] This utility model relates to a ball valve, specifically a ball valve that reduces fluid impact. Background Technology

[0002] A ball valve is a commonly used type of valve. Its working principle is based on a ball with a circular channel that rotates around an axis perpendicular to the fluid passage within the valve body to open or close. When the ball valve is closed, the circular channel on the ball is not aligned with the fluid inlet and outlet of the valve, and the surface of the ball is tightly fitted to the valve seat, blocking the passage of fluid. When opening, rotating the valve stem causes the ball to rotate 90 degrees, aligning the circular channel on the ball with the fluid passage of the valve, allowing the fluid to pass through unimpeded.

[0003] Currently, to ensure the sealing performance of ball valves, multiple sealing rings are used inside the ball valve. When fluid flows through the ball valve, the sealing rings are easily damaged, thus affecting the sealing performance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ball valve that reduces fluid impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a valve body, a ball, a valve stem, and a valve seat. A fluid channel is provided within the valve body. The valve seat is mounted on the valve body. The valve stem drives the ball to rotate and has a cut-off position that, together with the valve seat, cuts off the fluid channel. It includes a mating pipe, a fixing ring, a rotating shaft, a rotating plate, and a reset component. The mating pipe is detachably fixed to the valve body and faces the fluid channel. The fixing ring is located within the mating pipe. The rotating shaft is rotatably mounted on the fixing ring. The rotating plate is mounted on the rotating shaft and rotates with the rotating shaft. The reset component is located between the rotating plate and the fixing ring and drives the rotating plate to rotate towards the fixing ring. The reset component can be a spring.

[0006] By adopting the above technical solution, in order to prevent the fluid flow rate from being too high, the fitting pipe can be fixed on the valve body before use. Then, when the fluid passes through, it will first push the rotating plate and the rotating shaft to rotate, thereby stretching the reset component and separating the rotating plate from the fixed ring. The fluid passes through the gap between the rotating plate and the fixed plate, thereby reducing the impact of the fluid on the sealing ring. When the fluid stops flowing, the reset component will reset the rotating plate, thereby reducing the gap between the rotating plate and the fixed ring.

[0007] The present invention is further configured as follows: including a fixing member, the valve body having a valve tube, the mating tube having an extension tube extending toward the valve body, the extension tube being sleeved on the valve tube, the fixing member constituting the fixing of the extension tube and the valve tube, and both the valve tube and the extension tube having fixing holes opposite to the fixing member.

[0008] By adopting the above technical solution, when fixation is required, the fixing component is passed through the corresponding hole of the mating pipe and enters the hole of the valve pipe, so that the mating pipe and the valve pipe are fixed together.

[0009] The present invention is further configured such that: a guide slope is provided on the outer side of the extension tube, and a matching slope is provided on the outer periphery of the valve tube opposite to the guide slope.

[0010] By adopting the above technical solution, when the fitting pipe is inserted into the outer circumference of the valve pipe, the guide slope reduces the difficulty of assembly and eventually abuts against the fitting slope.

[0011] The present invention is further configured as follows: including a push block and a push spring, a sliding track is provided in the valve body, the valve seat is slidably disposed in the sliding track, the push block is disposed in the valve body, the push spring is disposed between the push block and the valve body, and the push block has a push end on the other side of the push spring that abuts against the valve seat.

[0012] By adopting the above technical solution, when the valve seat is worn, there is a gap between the valve seat and the ball. At this time, the push block, under the action of the push spring, pushes the valve seat sliding track closer to the ball, thereby making up for the gap and extending the service life of the valve seat.

[0013] The present invention is further configured such that: a stepped groove is provided in the valve body, the stepped groove includes an upper step, a transition step and a lower step, a push block is slidably disposed on the upper step, a push spring is disposed between the upper step and the push block and drives the push block to move toward the ball, and the valve seat is provided with a transition step and a lower step, and the transition step and the lower step form a sliding track.

[0014] The present invention is further provided with sealing rings between the valve seat and the transition step, and between the valve seat and the lower step. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a partial enlarged view of A in Figure 1 of this utility model; Figure 3 is a partial enlarged view of B in Figure 1 of this utility model.

[0017] In the diagram: 1. Valve body; 11. Valve pipe; 12. Mating bevel; 2. Ball; 3. Valve stem; 4. Valve seat; 5. Fluid passage; 6. Mating pipe; 61. Extension pipe; 62. Guide bevel; 7. Fixing ring; 71. Rotating shaft; 72. Rotating plate; 73. Reset component; 8. Fixing component; 9. Push block; 91. Push spring; 92. Push end; 93. Sealing ring; 94. Stepped groove; 941. Upper step; 942. Transition step; 943. Lower step. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] As shown in Figures 1-3, this utility model discloses a ball valve for reducing fluid impact, including a valve body 1, a ball 2, a valve stem 3, and a valve seat 4. A fluid channel 5 is provided inside the valve body 1. The valve seat 4 is mounted on the valve body 1. The valve stem 3 drives the ball 2 to rotate and forms a cut-off position with the valve seat 4 to interrupt the fluid channel 5. The valve includes a fitting pipe 6, a fixing ring 7, a rotating shaft 71, a rotating plate 72, and a reset component 73. The fitting pipe 6 is detachably fixed to the valve body 1 and faces the fluid channel 5. The fixing ring 7 is located inside the fitting pipe 6. The rotating shaft 71 is rotatably mounted on the fixing ring 7. The rotating plate 72 is mounted on the rotating shaft 71 and rotates with the rotating shaft 71. The reset component 73 is located between the rotating plate 72 and the fixing ring 7 and drives the rotating plate 72 to rotate towards the fixing ring 7. The reset component 73 can be a spring. To prevent excessive fluid velocity, the fitting pipe 6 can be fixed to the valve body 1 before use. When fluid passes through, it first pushes the rotating plate 72 and the rotating shaft 71 to rotate, thereby stretching the reset member 73 and causing the rotating plate 72 to separate from the fixed ring 7. The fluid passes through the gap between the rotating plate 72 and the fixed plate, thereby reducing the impact of the fluid on the sealing ring 93. When the fluid stops flowing, the reset member 73 resets the rotating plate 72, thereby reducing the gap between the rotating plate 72 and the fixed ring 7.

[0021] The valve body 1 includes a valve tube 11 and a mating tube 6. The mating tube 6 has an extension tube 61 extending into the valve body 1. The extension tube 61 is sleeved on the valve tube 11. The fixing member 8 fixes the extension tube 61 to the valve tube 11. Both the valve tube 11 and the extension tube 61 have fixing holes opposite to the fixing member 8. When fixing is required, the fixing member 8 is passed through the corresponding hole of the mating tube 6 and enters the hole of the valve tube 11, so that the mating tube 6 is fixed to the valve tube 11.

[0022] The extension tube 61 is provided with a guide slope 62 on the outside, and the valve tube 11 is provided with a mating slope 12 opposite to the guide slope 62 on the outer periphery. When the mating tube 6 is inserted into the outer periphery of the valve tube 11, the guide slope 62 reduces the difficulty of assembly and eventually abuts against the mating slope 12.

[0023] The valve body 1 includes a push block 9 and a push spring 91. A sliding track is provided inside the valve body 1, and the valve seat 4 is slidably disposed in the sliding track. The push block 9 is disposed inside the valve body 1, and the push spring 91 is disposed between the push block 9 and the valve body 1. The push block 9 has a push end 92 on the other side opposite to the push spring 91 that abuts against the valve seat 4. When the valve seat 4 is worn, there is a gap between the valve seat 4 and the ball 2. At this time, under the action of the push spring 91, the push block 9 pushes the valve seat 4 along the sliding track closer to the ball 2, thereby making up for the gap and extending the service life of the valve seat 4.

[0024] A stepped groove 94 is provided inside the valve body 1. The stepped groove 94 includes an upper step 941, a transition step 942, and a lower step 943. A push block 9 is slidably disposed on the upper step 941. A push spring 91 is disposed between the upper step 941 and the push block 9 and drives the push block 9 to move closer to the ball 2. The valve seat 4 is provided with a transition step 942 and a lower step 943, and the transition step 942 and the lower step 943 form a sliding track. Sealing rings 93 are respectively provided between the valve seat 4 and the transition step 942, and between the valve seat 4 and the lower step 943.

[0025] Working principle: To prevent excessive fluid flow rate, the fitting pipe 6 can be fixed to the valve body 1 by the fixing part 8 before use. When the fluid passes through, it will first push the rotating plate 72 and the rotating shaft 71 to rotate, thereby stretching the reset part 73, causing the rotating plate 72 to separate from the fixed ring 7. The fluid passes through the gap between the rotating plate 72 and the fixed plate, thereby reducing the impact of the fluid on the sealing ring 93. When the fluid stops flowing, the reset part 73 resets the rotating plate 72, thereby reducing the gap between the rotating plate 72 and the fixed ring 7.

Claims

1. A ball valve for reducing fluid impact, comprising a valve body (1), a ball body (2), a valve stem (3) and a valve seat (4), a fluid passage (5) is arranged in the valve body (1), the valve seat (4) is arranged on the valve body (1), the valve stem (3) drives the ball body (2) to rotate and has a cut-off position with the valve seat (4) to cut off the fluid passage (5), characterized in that: The utility model relates to a valve, including cooperation pipe (6), fixed ring (7), pivot (71), rotary plate (72) and reset piece (73), cooperation pipe (6) can be detached fixed on valve body (1) and with fluid passage (5) opposite, fixed ring (7) sets up in cooperation pipe (6) way, pivot (71) rotation sets up on fixed ring (7), rotary plate (72) sets up on pivot (71) and rotates with pivot (71), reset piece (73) is located between rotary plate (72) and fixed ring (7) and drives rotary plate (72) to rotate to the direction of sticking fixed ring (7). ​ 2. A ball valve to reduce fluid impact according to claim 1, characterized in that: The utility model relates to a valve, including fixed piece (8), valve body (1) has valve pipe (11), cooperation pipe (6) has the extension pipe (61) of extending to valve body (1), extension pipe (61) is sleeved in valve pipe (11), fixed piece (8) constitutes the fixed of extension pipe (61) and valve pipe (11).

3. A ball valve to reduce fluid impact according to claim 2, characterized in that: The utility model relates to a valve, including cooperation pipe (6), fixed ring (7), the extension pipe (61) outside of pivot (71) is provided with guide inclined plane (62), and the outer periphery of valve pipe (11) is provided with the cooperation inclined plane (12) opposite to guide inclined plane (62).

4. A fluid impact reducing ball valve according to claim 1, characterized in that: The utility model relates to a valve, including push block (9) and push spring (91), and valve body (1) is provided with sliding track, valve seat (4) is slidably arranged in the sliding track, push block (9) is arranged in valve body (1), push spring (91) is arranged between push block (9) and valve body (1), and push block (9) is provided with the push end (92) of abutting with valve seat (4) on the other side of push spring (91).

5. A fluid impact reducing ball valve according to claim 4, characterized in that: The utility model relates to a valve, including cooperation pipe (6), fixed ring (7) and the extension pipe (61) outside of pivot (71) is provided with guide inclined plane (63), and the outer periphery of valve pipe (11) is provided with the cooperation inclined plane of abutting with guide inclined plane (63) (13).

6. A ball valve to reduce fluid impact according to claim 5, characterized in that: The utility model relates to a valve, including push block (9) and push spring (9), and valve body (1) is provided with sliding track, valve seat (4) is arranged in the sliding track, push block (9) is arranged in valve body (1), and push spring (9) is arranged between push block (9) and valve body (1), and push block (4) is provided with the push end (92) of abutting with valve seat (4) in push spring (9) the other side. The utility model relates to a valve, including cooperation pipe (6), fixed ring (7) the extension pipe (61) outside of pivot (71) is provided with guide inclined plane (64), and the outer periphery of valve pipe (11) is provided with the cooperation inclined plane opposite to guide inclined plane (64) (13). The utility model relates to a valve, including push block (9) and the push spring (9) of abutting with valve seat (4), and valve body (1) is provided with sliding track, and push block (9) is arranged in the sliding track, and push spring (9) is arranged between push block (9) and valve body (1).

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