Pneumatic baffle valve

Abstract

The utility model discloses a pneumatic baffle valve which comprises an air cylinder and a valve body, the air cylinder is connected with the valve body through a connecting assembly, the valve body is provided with a first opening and a second opening, the first opening is communicated with the second opening through a flow channel, a baffle is arranged in the valve body, the air cylinder is connected with a valve rod, and the valve rod is connected with the baffle. The valve rod is connected with the baffle, and the baffle can be driven by the air cylinder to do reciprocating motion in the flow channel to achieve opening and closing control over the pneumatic baffle valve. According to the pneumatic baffle valve, the air cylinder pushes the valve rod to move forwards, the valve rod pushes the baffle to start to work, the baffle achieves sealing through reciprocating motion of the valve rod, opening and closing control of the valve can be well achieved even in a narrow environment, and compared with manual control, the pneumatic baffle valve is more convenient to use. The baffle valve controlled by the air cylinder is higher in accuracy and efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a pneumatic baffle valve. Background Art

[0002] In the modern industrial field, various valves play an important role, and it is necessary to control the flow rate, pressure and flow direction of gas. As one of the valves, the performance of the baffle valve affects the operation efficiency and reliability of the entire equipment. Most of the existing baffle valves control the opening and closing of the valve through a handle, and control the movement of the adjusting rod by rotating the handle to control the opening and closing of the valve core. On the one hand, the manual adjustment structure is not applicable to places with a narrow installation environment, and the hand cannot reach in and rotate the handle in a narrow environment. On the other hand, the control accuracy and accuracy of the control method by rotating the handle are not high. Content of the Utility Model

[0003] For this reason, an object of the utility model is to provide a pneumatic baffle valve to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0004] In order to achieve the above object, the utility model adopts the following technical solutions:

[0005] A pneumatic baffle valve includes a cylinder and a valve body. The cylinder and the valve body are connected by a connecting component. The valve body is provided with a first opening and a second opening, and the first opening and the second opening are connected by a flow channel. A baffle is arranged in the valve body. The cylinder is connected with a valve rod, and the valve rod is connected with the baffle. The baffle can reciprocate in the flow channel under the drive of the cylinder to realize the opening and closing control of the pneumatic baffle valve.

[0006] Further, the valve body is integrally in a T shape, the valve body is provided with a connection port, the connecting component is arranged at the connection port, and the cylinder is fixedly connected with the connecting component.

[0007] Further, the connecting component includes a fixing plate and a third flange. The third flange is connected with the connection port. The cylinder is fixedly arranged on one side of the fixing plate, and the other side of the fixing plate is connected with the third flange. The valve rod passes through the fixing plate and the third flange and extends into the valve body.

[0008] Further, a bearing is arranged at the connection between the valve rod and the fixing plate, and a plurality of third sealing rings are arranged at the place where the inner surface of the bearing fits with the valve rod.

[0009] Further, a first sealing groove is arranged on one side of the third flange connected with the fixing plate, and a first sealing ring is arranged in the first sealing groove.

[0010] Further, a second sealing groove is provided on the side of the baffle away from the cylinder, and a second sealing ring is provided in the second sealing groove.

[0011] Further, the pneumatic baffle valve further includes a pre-pumping port, and the pre-pumping port is provided below the valve body.

[0012] Further, the pneumatic baffle valve further includes a first flange and a second flange. The first flange is provided at the first opening and connected to the first opening, and the second flange is provided at the second opening and connected to the second opening.

[0013] Therefore, the present utility model has the following beneficial effects:

[0014] For the pneumatic baffle valve of the present utility model, the cylinder pushes the valve stem to move forward, the valve stem pushes the baffle to start working, and the baffle realizes sealing through the reciprocating movement of the valve stem. Even in a narrow environment, the opening and closing control of the valve can be well achieved, and compared with manual control, the baffle valve controlled by the cylinder has higher accuracy and efficiency.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is an axonometric view of the pneumatic baffle valve of the present utility model;

[0018] Figure 2 is an exploded view of the pneumatic baffle valve of the present utility model;

[0019] Figure 3 is an exploded view of the pneumatic baffle valve of the present utility model from another perspective;

[0020] Figure 4 is a front view of the pneumatic baffle valve of the present utility model;

[0021] Figure 5 is a side view of the pneumatic baffle valve of the present utility model;

[0022] Figure 6 is a top view of the pneumatic baffle valve of the present utility model;

[0023] Figure 7 is an exploded view of the bearing in the embodiment of the present utility model;

[0024] Figure 8 is a sectional view of the pneumatic baffle valve of the present utility model;

[0025] Figure 9 is a cross-sectional view of the bearing of the present utility model;

[0026] Figure 10 is a schematic diagram of the pneumatic baffle valve of the present utility model in a fully closed state;

[0027] Figure 11 is a schematic diagram of the pneumatic baffle valve of the present utility model in a fully open state.

[0028] In the figure: 1. Cylinder; 2. Valve body; 3. First opening; 4. Second opening; 5. Flow channel; 6. Baffle; 7. Valve stem; 8. Connection port; 9. Fixed plate; 10. Third flange; 11. Bearing; 12. Third sealing ring; 13. First sealing groove; 14. First sealing ring; 15. Second sealing groove; 16. Second sealing ring; 17. Pre-pumping port; 18. First flange; 19. Second flange; 20. Axle seat; 21. Outer ring; 22. First inner ring; 23. Second inner ring. Detailed implementation manners

[0029] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0030] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] As Figures 1-11 shown, a pneumatic baffle valve includes a cylinder 1 and a valve body 2. The cylinder 1 and the valve body 2 are connected by a connection component. The valve body 2 is provided with a first opening 3 and a second opening 4. The first opening 3 and the second opening 4 are connected and communicated through a flow channel 5. A baffle 6 is provided inside the valve body 2. The cylinder 1 is connected with a valve stem 7, and the valve stem 7 is connected with the baffle 6. The baffle 6 can reciprocate in the flow channel 5 under the drive of the cylinder 1 to realize the opening and closing control of the pneumatic baffle valve.

[0032] A pneumatic baffle valve of the present utility model. The cylinder 1 pushes the valve stem 7 to move forward, and the valve stem 7 pushes the baffle 6 to start working. The baffle 6 realizes sealing through the reciprocating movement of the valve stem 7. Even in a narrow environment, the opening and closing control of the valve can be well achieved. Moreover, compared with manual control, the baffle valve controlled by the cylinder 1 has higher accuracy and efficiency.

[0033] Further, as Figure 2 and Figure 3 shown, the valve body 2 is integrally T-shaped. The valve body 2 is provided with a connection port 8, and a connection assembly is arranged at the connection port 8. The cylinder 1 is fixedly connected to the connection assembly.

[0034] As Figure 2 shown, the valve body 2 has three ports, namely two flow ports (the first opening 3 and the second opening 4) and a connection port 8, and is integrally inverted T-shaped. The cylinder 1 is connected to the connection port 8 of the valve body 2 through the connection assembly.

[0035] Further, the connection assembly includes a fixing plate 9 and a third flange 10. The third flange 10 is connected to the connection port 8. The cylinder 1 is fixedly arranged on one side of the fixing plate 9, and the other side of the fixing plate 9 is connected to the third flange 10. The valve stem 7 passes through the fixing plate 9 and the third flange 10 and extends into the valve body 2.

[0036] The fixing plate 9 is used for installing and fixing the cylinder 1. As Figure 2 and Figure 3 shown, there are several small holes in the middle position of the fixing plate 9 for installing and fixing the cylinder 1, and several small holes are also provided at the outer side position of the fixing plate 9 for cooperating with the third flange 10 for installation and fixing.

[0037] Further, a bearing 11 is provided at the connection between the valve stem 7 and the fixing plate 9. As Figure 8 shown, several third sealing rings 12 are provided at the place where the inner surface of the bearing 11 is in contact with the valve stem 7.

[0038] As Figure 7 、 Figure 8 and Figure 9 shown, the bearing 11 includes several third sealing rings 12, a shaft seat 20, an outer ring 21, a first inner ring 22 and a second inner ring 23. The outer ring 21 is arranged in the cavity of the shaft seat 20, and the first inner ring 22 and the second inner ring 23 are arranged in the cavity of the outer ring 21. The first inner ring 22 and the second inner ring 23 are arranged side by side. A third sealing ring 12 is provided at the connection between one end of the first inner ring 22 and one end of the second inner ring 23. A third sealing ring 12 is provided at the connection between the other end of the first inner ring 22 and the outer ring 21. A third sealing ring 12 is provided at the connection between one end of the outer ring 21 and the inner surface of the shaft seat 20, and a third sealing ring 12 is provided on the inner surface of the shaft seat 20.

[0039] Further, asFigure 2 and Figure 3 As shown in Figure 3 , on one side where the third flange 10 is connected to the fixing plate 9, a first sealing groove 13 is provided, and a first sealing ring 14 is arranged in the first sealing groove 13.

[0040] Furthermore, as Figure 2 and Figure 3 shown in Figure 3 , on the side of the baffle 6 away from the cylinder 1, a second sealing groove 15 is provided, and a second sealing ring 16 is arranged in the second sealing groove 15.

[0041] The pneumatic baffle valve of the present utility model uses multiple sealing rings for sealing. Sealing rings are arranged at the baffle 6, flange, connection between the valve stem 7 and the cylinder 1, connection between the cylinder 1 and the valve body 2, and connection between the valve stem 7 and the flange, resulting in better sealing performance and good performance during use.

[0042] Furthermore, as Figure 4 and Figure 5 shown in Figure 5 , the pneumatic baffle valve further includes a pre - extraction port 17, and the pre - extraction port 17 is arranged below the valve body 2.

[0043] Furthermore, as Figures 1-5 shown in Figures 1-5 , the pneumatic baffle valve further includes a first flange 18 and a second flange 19. The first flange 18 is arranged at the first opening 3 and is connected to the first opening 3, and the second flange 19 is arranged at the second opening 4 and is connected to the second opening 4.

[0044] The first flange 18 and the second flange 19 are used to connect fluid pipelines.

[0045] As an implementation mode, the fluid enters from the first opening 3 of the valve body 2, flows through the flow channel 5, and then flows out from the second opening 4.

[0046] As an implementation mode, the fluid enters from the second opening 4 of the valve body 2, flows through the flow channel 5, and then flows out from the first opening 3.

[0047] As Figure 10 shown in Figure 10 , it is a state diagram of the pneumatic baffle valve when it is fully closed. At this time, the baffle 6 is located at the second opening 4 under the push of the cylinder 1 and the valve stem 7, and the second opening 4 is in a closed state, preventing the communication between the first opening 3 - flow channel 5 - second opening 4.

[0048] As Figure 11 shown in Figure 11 , it is a state diagram of the pneumatic baffle valve when it is fully opened. At this time, the baffle 6 is located at the connection port 8 under the pulling of the cylinder 1 and the valve stem 7, and the first opening 3 - flow channel 5 - second opening 4 is in a fully opened state.

[0049] As an implementation mode, the baffle 6 can be in a fully closed ( Figure 10 the state shown in Figure 10 ) and fully opened (Figure 11 at any position (state) between the states shown, such that the pneumatic baffle valve is in a semi-closed / semi-open state to achieve control of fluid flow rate and pressure.

[0050] For a pneumatic baffle valve of the present utility model, a cylinder 1 pushes a valve rod 7 to move forward, the valve rod 7 pushes a baffle 6 to start working, and the baffle 6 achieves sealing through the reciprocating motion of the valve rod 7. Even in a narrow environment, the opening and closing control of the valve can be well achieved, and compared with manual control, the accuracy and efficiency of the baffle and valve controlled by the cylinder 1 are higher.

[0051] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0052] It is not difficult for those skilled in the art to understand that the present utility model includes any combination of the utility model content and the specific implementation part of the above specification and each part shown in the drawings. Due to space limitations and to make the specification concise, the various solutions formed by these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0053] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, replacements, and variations to the above embodiments within the scope of the present utility model without departing from the principle and purpose of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic flapper valve, characterized in that: It includes a cylinder and a valve body, the cylinder and the valve body are connected by a connecting assembly, the valve body is provided with a first opening and a second opening, the first opening and the second opening are connected by a flow channel, a baffle is provided in the valve body, the cylinder is connected with a valve stem, the valve stem is connected to the baffle, and the baffle can make reciprocating motion in the flow channel under the drive of the cylinder to realize the opening and closing control of the pneumatic baffle valve.

2. A pneumatic flapper valve according to claim 1, characterized in that: The valve body is T-shaped as a whole, the valve body is provided with a connecting port, the connecting assembly is arranged at the connecting port, and the cylinder is fixedly connected to the connecting assembly.

3. A pneumatic flapper valve according to claim 2, characterized in that: The connecting assembly includes a fixing plate and a third flange, the third flange is connected to the connecting port, the cylinder is fixed on one side of the fixing plate, the other side of the fixing plate is connected to the third flange, and the valve stem passes through the fixing plate and the third flange and extends into the valve body.

4. A pneumatic flapper valve according to claim 3, characterized in that: A bearing is provided at the connection between the valve stem and the fixing plate, and a plurality of third sealing rings are provided at the place where the inner surface of the bearing and the valve stem are in contact.

5. A pneumatic flapper valve according to claim 3, characterized in that: A first sealing groove is provided on one side of the third flange connected to the fixing plate, and a first sealing ring is provided in the first sealing groove.

6. A pneumatic flapper valve according to claim 1, characterized in that: A second sealing groove is provided on one side of the baffle away from the cylinder, and a second sealing ring is provided in the second sealing groove.

7. A pneumatic flapper valve according to claim 1, characterized in that: It also includes a pre-evacuation port, which is arranged below the valve body.

8. A pneumatic flapper valve according to any one of claims 1 to 7, characterized in that: The device further includes a first flange and a second flange, wherein the first flange is disposed at the first opening and connected to the first opening, and the second flange is disposed at the second opening and connected to the second opening.

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