Pneumatic hard sealing ball valve

Abstract

The utility model provides a pneumatic hard seal ball valve, which relates to the technical field of hard seal ball valves and comprises a valve body, a water inlet pipe is mounted at a water inlet of the valve body, a connecting bin is mounted on the outer wall of the water inlet pipe, the inside of the connecting bin is communicated with the inside of the water inlet pipe, and a sliding plate is slidably connected in the connecting bin. The connecting bin and the sliding plate are arranged, the step groove is formed in the sliding plate to install the hollowed-out plate, the hollowed-out plate is used for intercepting solids in fluid and gathering the solids in the step groove, the connecting bin is arranged to be used for containing the sliding plate, the sliding plate is separated from the water inlet pipe, and therefore the solids in the fluid can be separated from the water inlet pipe. And meanwhile, the solid intercepted on the sliding plate can be taken out through the connecting bin, and the solid is used for detection.

Description

Technical Field

[0001] The utility model relates to the technical field of hard-sealed ball valves, in particular to a pneumatic hard-sealed ball valve. Background Art

[0002] The ball and seat of the hard-sealed ball valve are ground in pairs, and all sealing areas of the entire sealing surface of the ball valve are precision ground. It is suitable for high-temperature and high-pressure water, steam, oil, coal, fiber, viscous and corrosive media, as well as media with particles.

[0003] Therefore, a pneumatic hard-sealed ball valve in the prior art, with the publication number of CN215568084U, comprises a valve body and a valve cover arranged at the upper end of the valve body, wherein a flow channel for the circulation of a fluid medium is opened in the valve body, a valve seat cooperating with a ball body to achieve sealing is arranged in the valve body, the flow channel is divided into an inlet channel and an outlet channel by the ball body, a fixed protrusion is fixedly arranged along the inner wall of the inlet channel, a filter plate is arranged in the inlet channel, the filter plate will abut against the fixed protrusion and be inclined, and an extension plate is fixedly arranged at the upper end of the filter plate, the filter plate is arranged to filter the fluid medium, the solid particles in the fluid medium can be retained, and the blockage in the valve body can be effectively avoided; at the same time, the retained solid particles flow out through the sampling port to achieve sampling; thereby, the detection process is combined in the ball valve to achieve dynamic detection during the movement of the fluid medium.

[0004] However, the filter plate is fixed in the valve body, and when the sampling port is sealed, particles in the fluid will accumulate on the filter plate. Long-term accumulation will cause the filter plate to be blocked, thereby affecting the normal use of the valve body. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a pneumatic hard-sealed ball valve.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pneumatic hard-sealed ball valve, comprising a valve body, a water inlet pipe is installed at the water inlet of the valve body, a connecting bin is installed on the outer wall of the water inlet pipe, the interior of the connecting bin is connected to the interior of the water inlet pipe, and a sliding plate is slidably connected to the connecting bin, a sealing plate is fixedly connected to one side of the sliding plate, and a step groove is provided on one side of the sliding plate, a hollow plate is installed in the step groove, a sealing groove is provided on the side of the connecting bin wall close to the water inlet pipe, and the sealing groove wall is slidably connected to the side of the sealing plate.

[0007] Preferably, a plurality of spring rods are embedded and fixedly connected in the groove wall of the sealing groove facing the side of the water inlet pipe, and the telescopic ends of the spring rods are fixedly connected to sealing strips that are slidably connected to the notch of the sealing groove.

[0008] Preferably, a rotating plate with a hollow surface is mounted on a side edge of the sliding plate facing away from the valve body via an elastic hinge.

[0009] Preferably, a screw rod is threadedly connected at a corner of the notch on one side of the step groove facing away from the valve body, and one end of the screw rod is inserted into the hollow part of the surface of the hollow plate.

[0010] Preferably, a screw is rotatably connected to a warehouse wall on one side of the connecting warehouse facing the water inlet pipe, and the screw thread penetrates the edge of the other side of the sliding plate and is staggered with the hollow plate.

[0011] Preferably, the connection chamber wall is also fixedly connected with a plurality of guide rods penetrating the edge of the other side of the sliding plate and distributed parallel to the screw rod.

[0012] Preferably, a motor for driving the screw to rotate is fixedly connected to the wall of the connecting chamber, and a sealing door is installed on the side of the connecting chamber facing away from the valve body.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a connecting bin and a sliding plate are provided, and a hollow plate is installed by opening a step groove on the sliding plate. The hollow plate is used to intercept solids in the fluid and gather them in the step groove. A connecting bin is provided to store the sliding plate, so that the sliding plate is separated from the water inlet pipe and loses its filtering effect on the fluid, thereby ensuring that the valve body can smoothly transport the fluid. At the same time, the connecting bin can take out the solids intercepted on the sliding plate for detection. 2. In the utility model, a rotating plate, a sealing plate, a sealing groove and a sealing strip are provided. When the sliding plate moves toward the connecting bin until the swinging edge of the rotating plate abuts against the inner wall of the water inlet pipe, the hollow part on the surface of the rotating plate can be used to filter the solids in the fluid, thereby preventing particles in the fluid from accumulating between the sealing plate and the sealing strip, thereby ensuring that the sealing plate is completely in contact with the sealing strip, and further ensuring that the inner wall of the water inlet pipe is smooth after the sliding plate is completely stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a pneumatic hard-sealed ball valve is proposed for the utility model;

[0016] Figure 2 The utility model proposes a pneumatic hard seal ball valve Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 The utility model proposes a pneumatic hard seal ball valve Figure 2 A schematic cross-sectional structure diagram of ;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] Legend: 1. Valve body; 2. Water inlet pipe; 3. Connecting compartment; 4. Motor; 5. Sealing door; 6. Sealing groove; 7. Sliding plate; 8. Hollow plate; 9. Sealing plate; 10. Rotating plate; 11. Step groove; 12. Screw; 13. Sealing strip; 14. Guide rod; 15. Screw; 16. Spring rod. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4 As shown, a pneumatic hard-sealed ball valve comprises a valve body 1, which is a common pneumatic hard-sealed ball valve. A water inlet pipe 2 is installed at the water inlet of the valve body 1. The water inlet pipe 2 is limited to a rectangular setting. A connecting chamber 3 is installed on the outer wall of the water inlet pipe 2. The connecting chamber 3 is connected with the water inlet pipe 2, and a sliding plate 7 is slidably connected in the connecting chamber 3. A sealing plate 9 is fixedly connected to one side of the sliding plate 7, and a step groove 11 is opened on one side of the sliding plate 7. As shown in the figure, the step surface in the step groove 11 is arranged away from the valve body 1, and a hollow plate 8 is installed in the step groove 11. The hollow plate 8 is used to filter and retain a portion of the solids in the fluid, and the retained solids are retained in the step groove 11 and stored. Finally, the sliding plate 7 re-enters the connecting bin 3 for subsequent retrieval and inspection. A sealing groove 6 is provided on the side of the connecting bin 3 wall close to the water inlet pipe 2. The groove wall of the sealing groove 6 is slidably connected to the side of the sealing plate 9. After the sliding plate 7 enters the connecting bin 3, the sealing plate 9 on its side is embedded in the sealing groove 6 to ensure the sealing of the side of the sliding plate 7, and the sealing plate 9 is completely embedded in the sealing groove 6 to ensure that the inner wall of the water inlet pipe 2 is flat.

[0023] Further discussion: A plurality of spring rods 16 are embedded and fixedly connected to the groove wall of the sealing groove 6 facing the side of the water inlet pipe 2, and the telescopic end of the spring rod 16 is fixedly connected to a sealing strip 13 which is slidably connected to the notch of the sealing groove 6. A rotating plate 10 with a hollow surface is installed on the side of the sliding plate 7 facing away from the valve body 1 through an elastic hinge. When the sliding plate 7 moves toward the connecting chamber 3 until the swinging edge of the rotating plate 10 abuts against the inner wall of the water inlet pipe 2, the hollow part of the surface of the rotating plate 10 can be used to filter solids in the fluid to prevent particles in the fluid from accumulating between the sealing plate 9 and the sealing strip 13, that is, to ensure that the sealing plate 9 is completely in contact with the sealing strip 13, and then to ensure that the inner wall of the water inlet pipe 2 is flat after the sliding plate 7 is completely stored. The additionally arranged spring rod 16 can push the sealing strip 13 to seal the notch of the sealing groove 6 before the sealing plate 9 enters the sealing groove 6, to prevent impurities in the fluid from entering the sealing groove 6.

[0024] Further discussion: A screw rod 12 is threadedly connected at the corner of the notch on the side of the step groove 11 facing away from the valve body 1, and one end of the screw rod 12 is inserted into the hollow part of the surface of the hollow plate 8. As shown in the figure, a nut is fixed on the screw rod 12. Therefore, when in use, a filter screen with a certain density can be laid on the surface of the hollow plate 8, and then the filter screen can be completely pushed into the hollow part of the hollow plate 8 by rotating the screw rod 12 and using one end of the screw rod 12 to achieve the installation of the filter screen. Therefore, it can be adjusted according to the size of the solids in the fluid to ensure the smooth interception of a portion of the sample.

[0025] Further discussion: A screw 15 is rotatably connected to the wall of the connecting chamber 3 on one side facing the water inlet pipe 2, and the screw 15 threadably penetrates the edge of the other side of the sliding plate 7 and is staggered with the hollow plate 8. The wall of the connecting chamber 3 is also fixedly connected to a plurality of guide rods 14 that penetrate the edge of the other side of the sliding plate 7 and are parallel to the screw 15. A motor 4 for driving the screw 15 to rotate is fixedly connected to the wall of the connecting chamber 3, and a sealing door 5 is installed on the side of the connecting chamber 3 facing away from the valve body 1. The screw 15 is driven to rotate by the motor 4, and with the assistance of a plurality of guide rods 14, the sliding plate 7 can enter and exit the connecting chamber 3. The sealing door 5 can be opened after the sliding plate 7 completely enters the connecting chamber 3, so as to take out and detect the sample trapped in the step groove 11 in the sliding plate 7.

[0026] Working principle: the fluid enters the valve body 1 along the water inlet pipe 2, and when flowing in the water inlet pipe 2, the hollow plate 8 and the step groove 11 on the sliding plate 7 are used to intercept the solid part in the fluid. Before the step groove 11 is filled, the motor 4 drives the screw 15 to rotate to store the sliding plate 7 in the connecting chamber 3. When the sliding plate 7 moves toward the connecting chamber 3 until the swinging edge of the rotating plate 10 is against the inner wall of the water inlet pipe 2, the hollow part of the surface of the rotating plate 10 can be used to filter the solids in the fluid to prevent the particles in the fluid from accumulating between the sealing plate 9 and the sealing strip 13. After the sliding plate 7 is completely entered into the connecting chamber 3, the sealing door 5 is opened, and the solids and part of the liquid intercepted in the step groove 11 on the side of the sliding plate 7 in the connecting chamber 3 are taken out for inspection.

[0027] The wiring diagram of the motor 4 in the present invention is common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the motor 4 are not explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pneumatic hard-sealed ball valve, comprising a valve body (1), characterized in that: A water inlet pipe (2) is installed at the water inlet of the valve body (1), and a connecting chamber (3) is installed on the outer wall of the water inlet pipe (2). The interior of the connecting chamber (3) is communicated with the interior of the water inlet pipe (2), and a sliding plate (7) is slidably connected to the interior of the connecting chamber (3). A sealing plate (9) is fixedly connected to one side of the sliding plate (7), and a step groove (11) is provided on one side of the sliding plate (7). A hollow plate (8) is installed in the step groove (11). A sealing groove (6) is provided on the side of the connecting chamber (3) wall close to the water inlet pipe (2), and the groove wall of the sealing groove (6) is slidably connected to the side of the sealing plate (9).

2. The pneumatic hard-sealed ball valve according to claim 1, characterized in that: A plurality of spring rods (16) are embedded and fixedly connected in the groove wall of the sealing groove (6) facing the side of the water inlet pipe (2), and the telescopic ends of the spring rods (16) are fixedly connected to sealing strips (13) that are slidably connected to the notches of the sealing groove (6).

3. The pneumatic hard-sealed ball valve according to claim 1, characterized in that: A rotating plate (10) with a hollow surface is installed on the side of the sliding plate (7) facing away from the valve body (1) via an elastic hinge.

4. The pneumatic hard-sealed ball valve according to claim 1, characterized in that: A screw rod (12) is threadedly connected at the corner of the notch on one side of the step groove (11) facing away from the valve body (1), and one end of the screw rod (12) is inserted into the hollow part of the surface of the hollow plate (8).

5. The pneumatic hard-sealed ball valve according to claim 1, characterized in that: The connection chamber (3) is rotatably connected to a chamber wall on one side facing the water inlet pipe (2), and the screw rod (15) is threadedly penetrated through the edge of the other side of the sliding plate (7) and is staggered with the hollow plate (8).

6. The pneumatic hard-sealed ball valve according to claim 5, characterized in that: The connection bin (3) wall is also fixedly connected with a plurality of guide rods (14) penetrating the edge of the other side of the sliding plate (7) and distributed in parallel with the screw rod (15).

7. The pneumatic hard-sealed ball valve according to claim 5, characterized in that: A motor (4) for driving the screw rod (15) to rotate is fixedly connected to the wall of the connecting chamber (3), and a sealing door (5) is installed on the side of the connecting chamber (3) facing away from the valve body (1).

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