Pneumatic air valve with middle opening

Abstract

The utility model discloses a pneumatic air valve with a middle opening degree. The pipe body is used for being installed on a pipeline; the baffle is rotationally arranged on the inner side of the pipe body and used for closing and opening the pipe body through rotation; the rotating rod is fixedly arranged on the baffle and is rotationally connected with the inner wall of the pipe body; the connecting rod mechanism is arranged on the outer side of the pipe body; the double-stroke air cylinder is fixedly arranged on the outer side of the pipe body, connected with the connecting rod mechanism and used for controlling the baffle to rotate in the pipe body through the connecting rod mechanism; the middle of the double-stroke air cylinder stretches out and draws back to a certain degree so that the baffle can be adjusted to open the pipe body at the middle opening degree. The double-stroke air cylinder has the three states that the push rod is completely pushed out, the push rod is pushed out to a certain degree in the middle and the push rod is completely folded, the valve can be opened, and the rotating angle of the baffle in the middle opening degree when the baffle is completely opened and completely closed can be adjusted according to requirements.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a pneumatic air valve with intermediate opening. Background Technology

[0002] Pneumatic valves are opened or closed by an air pump to achieve automatic opening and closing of the valve.

[0003] Most existing valve devices use single-stroke cylinders, which only have two simple states: open and closed. However, since single-stroke cylinders can only generate thrust, they can only be reset by a spring. Therefore, current single-stroke cylinders require a continuous air supply and can only achieve fully extended and fully retracted states. They cannot open the valve as needed to adjust the flow rate of the installed pipeline when the valve is in the middle opening position. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to solve the problems in the prior art and provide a pneumatic air valve with intermediate opening.

[0005] Technical solution: A pneumatic damper with intermediate opening is proposed, including;

[0006] Pipe body, used for installation on pipelines;

[0007] A baffle, rotatably mounted inside the tube, is used to close and open the tube by rotation.

[0008] The rotating rod is fixedly mounted on the baffle and rotatably connected to the inner wall of the tube.

[0009] The linkage mechanism is located on the outside of the tube body;

[0010] A double-stroke cylinder is fixedly installed on the outside of the tube and connected to the linkage mechanism. It is used to control the rotation of the baffle inside the tube through the linkage mechanism.

[0011] The double-stroke cylinder has a certain degree of extension and retraction in the middle to adjust the baffle to open the tube at the middle opening degree.

[0012] Preferably, an i-shaped frame is connected to the outer side of the tube body, and an L-shaped frame is connected to the i-shaped frame, with the double-stroke cylinder fixedly mounted on the L-shaped frame.

[0013] Preferably, the linkage mechanism includes a first rotating plate, a screw, a second rotating plate, and a push-pull rod. The upper end of the rotating rod is connected to one end of the first rotating plate, and the other end of the first rotating plate is connected to one end of the screw. The second rotating plate is fixedly mounted on the screw by threads. One end of the second rotating plate is rotatably connected to an L-shaped frame, and the other end of the second rotating plate is rotatably connected to one end of the push-pull rod. The other end of the push-pull rod is rotatably connected to an L-shaped plate, and the L-shaped plate is fixed to the output end of the double-stroke cylinder.

[0014] Preferably, the convex frame is provided with a fan-shaped hole located on the outside of the screw.

[0015] Preferably, the push-pull rod is a fan-shaped rod structure.

[0016] Preferably, the L-shaped frame is provided with a sliding groove located on the underside of the L-shaped plate.

[0017] Preferably, a limiting plate is provided at one end of the inner wall of the tube.

[0018] Preferably, the C-shaped frame and the L-shaped frame are fixedly connected by bolts.

[0019] Preferably, the flow-limiting ring has a central circular perforated structure.

[0020] Preferably, the axis at one end of the rotating plate two that is rotatably connected to the L-shaped frame is collinear with the axis of the rotating rod.

[0021] Beneficial effects: By using a double-stroke cylinder, which has three states—fully extended push rod, partially extended push rod, and fully retracted push rod—this not only opens the valve but also allows adjustment of the baffle's rotation angle between fully open and fully closed states as needed. During retraction, it eliminates the need for an external spring to retract the push rod, as is required with single-stroke cylinders in existing technologies. Therefore, this application can accurately achieve fully opening and closing of the baffle, as well as adjusting the baffle's opening to a suitable degree. The device has no dead spots, no jamming, and excellent sealing.

[0022] Furthermore, the linkage mechanism effectively converts and amplifies the force applied to the valve, transforming a small operating force into a large output force. The linkage mechanism provides smooth and uniform motion, reducing the impact force when the valve opens or closes. Compared with traditional direct drive mechanisms, the linkage mechanism's structure can effectively distribute and transmit pressure, thereby reducing friction and wear between various parts and extending the valve's service life. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the baffle in the closed tube state of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the tube body with the baffle open in this utility model.

[0025] Figure 3 This is a three-dimensional structural diagram of the baffle in a semi-closed tube state.

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the baffle of this utility model.

[0027] Figure label:

[0028] 1. Pipe body; 2. Baffle; 3. Rotating rod; 4. Linkage mechanism; 5. Double-stroke cylinder; 6. C-shaped frame; 7. L-shaped frame; 8. Rotating plate one; 9. Screw; 10. Rotating plate two; 11. Push-pull rod; 12. L-shaped plate; 13. Fan-shaped hole; 14. Slide groove; 15. Limiting plate; 16. Bolt. Detailed Implementation

[0029] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below 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. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but does not exclude other elements or objects.

[0033] In response to the problems existing in the current technology, combined with Figure 1-4 A pneumatic damper with intermediate opening, comprising:

[0034] Pipe body 1, used for installation on the pipeline;

[0035] Baffle 2 is rotatably disposed inside the tube body 1 and is used to close and open the tube body 1 by rotation.

[0036] Rotating rod 3 is fixedly mounted on baffle 2 and rotatably connected to the inner wall of tube 1;

[0037] Linkage mechanism 4 is located on the outside of tube body 1;

[0038] A double-stroke cylinder 5 is fixedly installed on the outside of the tube body 1 and connected to the linkage mechanism 4. It is used to control the baffle 2 to rotate inside the tube body 1 through the linkage mechanism 4.

[0039] Among them, the double-stroke cylinder 5 has a certain degree of extension and retraction in the middle to adjust the baffle 2 to open the tube 1 at the middle opening degree.

[0040] Specifically, the extension and retraction of the double-stroke cylinder 5, in conjunction with the linkage mechanism 4, drives the rotating rod 3 to rotate. The rotation of the rotating rod 3 drives the baffle 2 to rotate within the tube body 1, thereby opening and closing the tube body 1. The opening and closing angle can even be adjusted to an intermediate degree. Different models of double-stroke cylinders 5 can be selected according to requirements to adjust the degree of opening of the baffle 2 between fully opening and fully closing the tube body 1, or between the intermediate degree of opening, and to make small-angle adjustments as needed. Therefore, the intermediate degree mentioned here is preset by selecting different double-stroke cylinders 5 according to requirements.

[0041] In some preferred embodiments, an inverted bracket 6 is connected to the outer side of the tube body 1, an L-shaped bracket 7 is connected to the inverted bracket 6, and the double-stroke cylinder 5 is fixedly mounted on the L-shaped bracket 7.

[0042] Specifically, the double-stroke cylinder 5 is fixed to the outside of the tube body 1 by the C-shaped bracket 6 and the L-shaped bracket 7.

[0043] In some preferred embodiments, the linkage mechanism 4 includes a first rotating plate 8, a screw 9, a second rotating plate 10, and a push-pull rod 11. The upper end of the rotating rod 3 is connected to one end of the first rotating plate 8, and the other end of the first rotating plate 8 is connected to one end of the screw 9. The second rotating plate 10 is fixedly mounted on the screw 9 by threads. One end of the second rotating plate 10 is rotatably connected to the L-shaped frame 7, and the other end of the second rotating plate 10 is rotatably connected to one end of the push-pull rod 11. The other end of the push-pull rod 11 is rotatably connected to an L-shaped plate 12, and the L-shaped plate 12 is fixed to the output end of the double-stroke cylinder 5.

[0044] Specifically, the double-stroke cylinder 5 extends and retracts, cooperating with the L-shaped plate 12 and the push-pull rod 11. Rotating around one end of the rotating plate 10, this, in turn, drives the rotating rod 3 to rotate, which in turn drives the baffle 2 to rotate, thus opening and closing the pipe body 1. This effectively converts and amplifies the force applied to the valve, transforming a smaller operating force into a larger output force. The linkage mechanism 4 provides smooth and uniform movement, reducing the impact force when the valve opens or closes. Compared to some traditional direct-drive mechanisms, the linkage mechanism 4 effectively disperses and transmits pressure, thereby reducing friction and wear between parts and extending the valve's service life.

[0045] In some preferred embodiments, the convex frame 6 is provided with a fan-shaped hole 13 located on the outside of the screw 9.

[0046] Specifically, it facilitates the rotation of screw 9 around rotating rod 3.

[0047] In some preferred embodiments, the push-pull rod 11 is a fan-shaped rod structure.

[0048] Specifically, to avoid interference with screw 9, the stroke of rotating rod 3 is increased.

[0049] In some preferred embodiments, the L-shaped frame 7 is provided with a sliding groove 14 located on the lower side of the L-shaped plate 12.

[0050] Specifically, the contact area between the L-shaped plate 12 and the L-shaped frame 7 is reduced to decrease the friction when the L-shaped plate 12 slides.

[0051] In some preferred embodiments, a limiting plate 15 is provided at one end of the inner wall of the tube 1.

[0052] Specifically, the limiting plate 15 is used to limit the movement of the rotating rod 3 when it rotates and closes inside the tube 1.

[0053] In some preferred embodiments, the C-shaped frame 6 and the L-shaped frame 7 are fixedly connected by bolts 16.

[0054] Specifically, this facilitates the secure fixing of the L-shaped frame 7 and the C-shaped frame 6.

[0055] In some preferred embodiments, the axis of rotation of one end of the rotating plate 10, which is rotatably connected to the L-shaped frame 7, is collinear with the axis of rotation of the rotating rod 3.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pneumatic air damper with intermediate opening, characterized in that The utility model relates to a pipe body (1) for installing on a pipeline, a baffle (2) rotatably arranged inside the pipe body (1) for closing and opening the pipe body (1) by rotation, a rotating rod (3) fixedly arranged on the baffle (2) and rotatably connected with the inner wall of the pipe body (1), a connecting rod mechanism (4) arranged outside the pipe body (1), a double-stroke cylinder (5) fixedly arranged outside the pipe body (1) and connected with the connecting rod mechanism (4) for controlling the rotation of the baffle (2) in the pipe body (1) through the connecting rod mechanism (4), wherein the double-stroke cylinder (5) is capable of stretching and retracting to a certain degree in the middle to adjust the opening of the pipe body (1) at the middle opening degree. The outer side of the pipe body (1) is connected with a Z-shaped frame (6), the Z-shaped frame (6) is connected with an L-shaped frame (7), and the double-stroke cylinder (5) is fixedly arranged on the L-shaped frame (7). The connecting rod mechanism (4) comprises a rotating plate one (8), a screw rod (9), a rotating plate two (10) and a push-pull rod (11), the upper end of the rotating rod (3) is connected with one end of the rotating plate one (8), the other end of the rotating plate one (8) is connected with one end of the screw rod (9), the screw rod (9) is fixedly provided with the rotating plate two (10) through threads, one end of the rotating plate two (10) is rotatably connected with the L-shaped frame (7), the other end of the rotating plate two (10) is rotatably connected with one end of the push-pull rod (11), the other end of the push-pull rod (11) is rotatably provided with an L-shaped plate (12), and the L-shaped plate (12) is fixed on the output end of the double-stroke cylinder (5). The Z-shaped frame (6) is provided with a fan-shaped hole (13) arranged outside the screw rod (9). The push-pull rod (11) is a fan-shaped rod structure. The L-shaped frame (7) is provided with a sliding groove (14) arranged below the L-shaped plate (12). One end of the inner wall of the pipe body (1) is provided with a limiting plate (15).

2. A pneumatic air damper according to claim 1, characterized in that The Z-shaped frame (6) and the L-shaped frame (7) are fixedly connected through bolts (16).

3. A pneumatic air damper according to claim 2, characterized in that The axis of the rotating plate two (10) rotatably connected with the L-shaped frame (7) is collinear with the axis of the rotating rod (3).

4. A pneumatic air damper according to claim 3, characterized in that ​ 5. A pneumatic air damper according to claim 3, wherein ​ 6. A pneumatic air damper according to claim 2, wherein ​ 7. A pneumatic air damper according to claim 1, wherein ​ 8. A pneumatic air damper according to claim 2, wherein, ​ 9. A pneumatic air damper according to claim 3, wherein ​

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