Lift valve

Abstract

The utility model relates to the technical field of valves, in particular to a lift valve which comprises a hollow valve body, and flange plates are coaxially connected to the two ends of the valve body; the conical valve plate is coaxially arranged at one end of the valve body, the diameter of the conical valve plate is gradually reduced towards the side close to the inner cavity of the valve body, and the conical surface of the conical valve plate can abut against the flange plate; the driving unit is used for driving the conical valve plate to move in the axial direction of the valve body, and the driving unit is connected with the valve body and the conical valve plate; the conical valve plate with the diameter gradually decreasing towards the side close to the inner cavity of the valve body can be matched with the driving unit to achieve opening and closing control over a pipeline, powder materials can be guided to the communicating seam through the conical face during communication, the powder materials can conveniently and rapidly pass through the communicating seam during communication, and the communication efficiency of the powder materials is improved. And the possibility that the powder material stays on the conical surface can be reduced, and the discharging efficiency of the powder material is improved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a poppet valve. Background Art

[0002] A poppet valve is an industrial valve that is mainly used to control the flow of fluids. It is usually installed in a pipeline system to adjust the flow, pressure and direction of the fluid by opening or closing it. The main feature of a poppet valve is that the valve disc (or valve core) can be raised and lowered vertically to achieve open and close control of the fluid channel. It is widely used in fields such as petroleum, chemical industry, electric power, metallurgy, etc.

[0003] The prior art discloses a new type of detachable lifting valve that is easy to maintain, which includes a cylinder, a bracket and a valve seat. A bracket is installed between the cylinder and the bracket, and connecting rods are provided at the middle positions of the bracket and the bracket. A stuffing box is provided at the position where the connecting rod is connected to the valve seat, and bolts, a valve plate and a sleeve are installed at the bottom position of the connecting rod. A positioning card seat and a connecting seat are installed between the cylinder and the bracket, and positioning pins are installed on both sides of the connecting seat. A connecting rod is installed on the inner side of the support, and connecting bolts are installed between the connecting rod and the connecting rod.

[0004] With respect to the above-mentioned related technologies, when the lifting valve disclosed in the prior art is used to open and close the transportation of powder in the pipeline, the flow direction of the powder is blocked by the valve plate when flowing through the opening gap between the valve plate and the pipe body and needs to change the flow direction, resulting in greater resistance to the powder when flowing through the opening gap. When the valve plate is in a horizontal state, part of the powder will accumulate under the pressure of the powder above, resulting in material accumulation, which further affects the discharge efficiency of the powder. Utility Model Content

[0005] In order to improve the powder discharge efficiency while realizing the opening and closing of the material conveying pipeline, the present application provides a lifting valve.

[0006] The present application provides a lifting valve adopting the following technical solution:

[0007] A poppet valve, comprising:

[0008] A valve body, wherein the valve body is hollow and flanges are coaxially connected at both ends of the valve body;

[0009] A conical valve plate, wherein the conical valve plate is coaxially arranged at one end of the valve body, the diameter of the conical valve plate gradually decreases toward a side close to the inner cavity of the valve body, and the conical surface of the conical valve plate can abut against the flange;

[0010] A driving unit is used for driving the conical valve plate to move axially along the valve body, wherein the driving unit is connected to the valve body and the driving unit is connected to the conical valve plate.

[0011] By adopting the above technical solution, the designed lifting valve can connect the two sections of the pipeline that need to be controlled to open and close through the valve body and the flange. The conical valve plate whose diameter gradually decreases toward the inner cavity of the valve body can cooperate with the driving unit to realize the opening and closing control of the pipeline. Moreover, when the valve is turned on, the powder material can be guided to the connecting seam through the conical surface, so that the powder material can quickly pass through the connecting seam when the valve is turned on. The possibility of the powder material staying on the conical surface can also be reduced, thereby improving the discharge efficiency of the powder material.

[0012] In a specific possible implementation manner, the conical valve plate is hollow.

[0013] By adopting the above technical solution, the hollow conical valve plate is designed, which can reduce the amount of valve plate material used.

[0014] In a specific possible implementation manner, at least one reinforcing support frame is connected to the inner cavity of the conical valve plate.

[0015] By adopting the above technical solution, the reinforced support frame designed can improve the structural strength of the hollow conical valve plate and ensure the sealing reliability of the conical valve plate to the opening at one end of the valve body.

[0016] In a specific possible implementation mode, a sealing rubber ring is provided between the flange and the conical valve plate.

[0017] By adopting the above technical solution, the designed sealing rubber ring can further improve the sealing reliability of the conical valve plate to the opening at one end of the valve body, and can avoid hard contact between the conical surface of the conical valve plate and the flange, thereby extending the service life of the conical valve plate.

[0018] In a specific embodiment, the drive unit includes

[0019] A rotating shaft, the rotating shaft is rotatably connected to the valve body, and the rotating shaft is located at one side of the valve body;

[0020] A mounting post, the mounting post is coaxially connected to the conical valve plate and is located in the inner cavity of the valve body;

[0021] A transmission crank, the transmission crank is connected to the rotating shaft, and the transmission crank passes through the valve body and is rotatably connected to the mounting column;

[0022] A driving member is used for driving the rotating shaft to rotate, wherein the driving member is installed on the valve body and connected to the rotating shaft.

[0023] By adopting the above technical solution, when it is necessary to close the opening at one end of the valve body, the driving member applies force to the rotating shaft, and the rotating shaft rotates while driving the transmission crank to move. The transmission crank transmits the force to the mounting column, and the mounting column drives the conical valve plate to move along the axial direction of the valve body toward the side away from the flange as the transmission crank moves, so that the conical valve plate no longer blocks the opening at one end of the valve body; the designed driving unit can easily apply force to the rotating shaft through the driving member to drive the rotating shaft to rotate, and it is easy to drive the transmission crank to move through the rotating shaft. The rotation of the transmission crank can make the mounting column move along its own axial direction, thereby driving the conical valve plate to move, thereby completing the blocking or opening of the opening at one end of the valve body.

[0024] In a specific embodiment, the driving member includes

[0025] A mounting frame connected to the valve body;

[0026] Two driving cylinders, the valve body is located between the two driving cylinders, and the cylinder bodies of the driving cylinders are rotatably connected to the mounting frame;

[0027] Two active cranks, one end of the active crank is rotatably connected to the piston rod of the driving cylinder, and the other end is connected to the rotating shaft.

[0028] By adopting the above technical solution, the designed driving component can facilitate the installation of the driving cylinder through the mounting frame, and the driving cylinder can facilitate the movement of the active crank, and the active crank can be used to rotate the rotating shaft. In addition, by arranging the driving structure of the rotating shaft on the side of the valve body, the movement of the conical valve plate can be realized in a more compact space.

[0029] In a specific feasible implementation scheme, a fixed tube is fixedly connected to the valve body, the transmission crank is arranged through the connecting part between the fixed tube and the valve body, and both ends of the fixed tube are connected to blocking end plates, the rotating shaft is coaxially arranged with the fixed tube and is rotatably connected to the blocking end plates.

[0030] By adopting the above technical solution, the designed fixed pipe can prevent the powder material from leaking from the insertion gap of the driving crank under the premise of realizing the driving crank to extend into the valve body cavity and providing an installation foundation for the rotating shaft.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The designed lifting valve is convenient for connecting the two sections of pipelines that need to be controlled to open and close through the valve body and the flange. The conical valve plate whose diameter gradually decreases toward the inner cavity of the valve body can cooperate with the driving unit to realize the opening and closing control of the pipeline. Moreover, when the valve is connected, the powder material can be guided to the connecting seam through the conical surface, which is convenient for the powder material to quickly pass through the connecting seam when the valve is connected. It can also reduce the possibility of the powder material staying on the conical surface, thereby improving the feeding efficiency of the powder material.

[0033] 2. The designed lifting valve can further improve the sealing reliability of the conical valve plate to the opening at one end of the valve body through the sealing rubber ring, and can avoid the hard contact between the conical surface of the conical valve plate and the flange, thereby extending the service life of the conical valve plate.

[0034] 3. The designed lifting valve can facilitate installation of the driving cylinder through the mounting frame, and the driving cylinder can facilitate the movement of the active crank, and the active crank can rotate the rotating shaft, and by arranging the driving structure of the rotating shaft on the side of the valve body, the movement of the conical valve plate can be realized in a more compact space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the structure of the valve body, flange, conical valve plate and drive unit in the embodiment of the present application.

[0036] Figure 2 yes Figure 1 sectional view of .

[0037] Figure 3 yes Figure 2 A structural schematic diagram after the reinforced support frame is added.

[0038] Figure 4 It is a schematic plan view of the overall structure of the lifting valve according to an embodiment of the present application.

[0039] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure.

[0040] Figure 6 yes Figure 5 Schematic diagram of part of the structure.

[0041] Explanation of the accompanying drawings: 1. Valve body; 2. Flange; 3. Conical valve plate; 4. Drive unit; 41. Rotating shaft; 42. Mounting column; 43. Transmission crank; 44. Driving member; 441. Mounting frame; 442. Driving cylinder; 443. Active crank; 5. Strengthening support frame; 6. Sealing rubber ring; 7. Fixing pipe; 8. Sealing end plate. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-6This application is described in further detail.

[0043] The embodiment of the present application discloses a lift valve.

[0044] Reference Figure 1 and Figure 2 A poppet valve includes a valve body 1, a flange 2, a conical valve plate 3 and a drive unit 4. The valve body 1 is hollow, and there are two flanges 2. The two flanges 2 are coaxially arranged and respectively located at the axial ends of the valve body 1, and the flanges 2 are welded and fixed to the valve body 1; the conical valve plate 3 is coaxially arranged at one end of the valve body 1, and the diameter of the conical valve plate 3 gradually decreases toward the side close to the inner cavity of the valve body 1, and when the conical valve plate 3 moves axially toward the valve body 1, the conical surface of the conical valve plate 3 can abut against the flange 2; the drive unit 4 is connected to the valve body 1, and the drive unit 4 is connected to the conical valve plate 3, and is used to drive the conical valve plate 3 to reciprocate along the axial direction of the valve body 1, thereby completing the opening and closing operation of the opening at one end of the valve body 1; and the valve body 1 is also welded and fixed with a plurality of bypass pipes.

[0045] Reference Figure 2 and Figure 3 In order to reduce the material consumption of the conical valve plate 3, the conical valve plate 3 is hollow, and in order to improve the structural strength of the hollow conical valve plate 3 and ensure the sealing reliability of the conical valve plate 3 to the opening at one end of the valve body 1, at least one reinforcing support frame 5 is provided in the inner cavity of the conical valve plate 3, and the reinforcing support frame 5 is welded and fixed to the inner cavity of the conical valve plate 3. In the present application, the reinforcing support frame 5 can be a disc, a cross-shaped, or other shapes that can improve the structural strength of the conical valve plate 3. In the present embodiment, the reinforcing support frame 5 is set as a disc.

[0046] Reference Figure 3 In order to further improve the sealing reliability of the conical valve plate 3 to the opening at one end of the valve body 1, avoid hard contact between the conical surface of the conical valve plate 3 and the flange 2, and extend the service life of the conical valve plate 3, a sealing rubber ring 6 is arranged between the flange 2 and the conical valve plate 3.

[0047] Reference Figure 4 and Figure 5 The driving unit 4 includes a rotating shaft 41, a mounting column 42, a driving crank 43 and a driving member 44. The rotating shaft 41 is rotatably connected to the valve body 1, and the rotating shaft 41 is located on one side of the valve body 1. The mounting column 42 is coaxially welded and fixed to the conical valve plate 3, and the mounting column 42 is located in the inner cavity of the valve body 1. One end of the driving crank 43 is welded and fixed to the rotating shaft 41, and the other end passes through the valve body 1 and is rotatably connected to the mounting column 42 through a pin shaft, and the driving crank 43 is staggered with the valve body 1.

[0048] Reference Figure 5 and Figure 6In order to prevent the powder material from leaking from the insertion gap of the driving crank 43 under the premise of realizing the driving crank 43 extending into the inner cavity of the valve body 1 and providing an installation foundation for the rotating shaft 41, a fixed pipe 7 is welded and fixed on the valve body 1, and the inner cavity of the fixed pipe 7 is connected with the inner cavity of the valve body 1. The driving crank 43 is arranged through the connection between the fixed pipe 7 and the valve body 1, and both ends of the fixed pipe 7 are detachably fixedly connected with a blocking end plate 8 by bolts. The rotating shaft 41 is coaxially arranged with the fixed pipe 7, and the rotating shaft 41 is rotatably connected with the blocking end plate 8 through a sealed bearing.

[0049] Reference Figure 5 and Figure 6 In order to facilitate the rotation of the rotating shaft 41, the driving member 44 is installed on the valve body 1, and the driving member 44 is connected to the rotating shaft 41. The driving member 44 includes a mounting frame 441, two driving cylinders 442 and two active cranks 443. The mounting frame 441 is welded and fixed to the valve body 1. The mounting frame 441 abuts against the flange 2 close to the sealing rubber ring 6, and the mounting frame 441 is located on the side of the valve body 1 away from the fixed pipe 7. The valve body 1 is located between the two driving cylinders 442. The cylinder body of the driving cylinder 442 is rotatably connected to the mounting frame 441, and the driving One end of the piston rod of the cylinder 442 is rotatably connected to the active crank 443, and the end of the piston rod of the active crank 443 away from the driving cylinder 442 is welded and fixed to the extended section of the rotating shaft 41 that extends out of the sealing end plate 8; the driving cylinder 442 can be easily installed through the mounting frame 441, and the active crank 443 can be easily actuated through the driving cylinder 442, and the rotating shaft 41 can be rotated through the active crank 443, and the driving structure of the rotating shaft 41 is arranged on the side of the valve body 1, so that the movement of the conical valve plate 3 can be realized in a more compact space.

[0050] The implementation principle of a lifting valve in the embodiment of the present application is as follows: when it is necessary to open the opening at one end of the valve body 1, the piston rod of the driving cylinder 442 retreats, and the piston rod of the driving cylinder 442 applies force to the rotating shaft 41 through the active crank 443, so that the rotating shaft 41 rotates. While the rotating shaft 41 rotates, it drives the transmission crank 43 to move, and the transmission crank 43 transmits the force to the mounting column 42. The mounting column 42 drives the conical valve plate 3 to move along the axial direction of the valve body 1 toward the side away from the flange 2 as the transmission crank 43 moves, so that the conical valve plate 3 no longer blocks the opening at one end of the valve body 1. When it is necessary to close the opening at one end of the valve body 1, the piston rod of the driving cylinder 442 is extended.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A poppet valve, characterized in that: include: A valve body (1), wherein the valve body (1) is hollow and flanges (2) are coaxially connected at both ends of the valve body (1); A conical valve plate (3), the conical valve plate (3) being coaxially arranged at one end of the valve body (1), the diameter of the conical valve plate (3) gradually decreasing toward a side close to the inner cavity of the valve body (1), and the conical surface of the conical valve plate (3) being capable of abutting against the flange (2); A driving unit (4) for driving the conical valve plate (3) to move axially along the valve body (1); the driving unit (4) is connected to the valve body (1), and the driving unit (4) is connected to the conical valve plate (3).

2. The poppet valve according to claim 1, characterized in that: The conical valve plate (3) is hollow.

3. The poppet valve according to claim 2, characterized in that: At least one reinforcing support frame (5) is connected to the inner cavity of the conical valve plate (3).

4. The poppet valve according to claim 1, characterized in that: A sealing rubber ring (6) is provided between the flange (2) and the conical valve plate (3).

5. The poppet valve according to claim 3, characterized in that: The driving unit (4) comprises A rotating shaft (41), the rotating shaft (41) being rotatably connected to the valve body (1), and the rotating shaft (41) being located on one side of the valve body (1); A mounting post (42), wherein the mounting post (42) is coaxially connected to the conical valve plate (3), and the mounting post (42) is located in the inner cavity of the valve body (1); A transmission crank (43), the transmission crank (43) being connected to the rotating shaft (41), and the transmission crank (43) passing through the valve body (1) and being rotationally connected to the mounting column (42); A driving member (44) for driving the rotating shaft (41) to rotate; the driving member (44) is mounted on the valve body (1), and the driving member (44) is connected to the rotating shaft (41).

6. The poppet valve according to claim 5, characterized in that: The driving member (44) comprises A mounting frame (441), the mounting frame (441) being connected to the valve body (1); Two driving cylinders (442), the valve body (1) is located between the two driving cylinders (442), and the cylinder bodies of the driving cylinders (442) are rotatably connected to the mounting frame (441); Two active cranks (443), one end of the active crank (443) is rotationally connected to the piston rod of the driving cylinder (442), and the other end is connected to the rotating shaft (41).

7. The poppet valve according to claim 5, characterized in that: A fixed tube (7) is fixedly connected to the valve body (1), the transmission crank (43) is arranged through the connection between the fixed tube (7) and the valve body (1), and both ends of the fixed tube (7) are connected to blocking end plates (8), and the rotating shaft (41) is coaxially arranged with the fixed tube (7) and is rotationally connected to the blocking end plates (8).

Images