Servo drive venturi air valve with remote monitoring

Abstract

This invention relates to the field of air valves, and discloses a servo-driven venturi air valve with remote monitoring. The valve includes a main body, with an opening / closing control and diversion mechanism movably connected to the bottom of a connecting rod. The opening / closing control and diversion mechanism includes a movable rod, one end of which is fixed to a round rod movably connected to the bottom of the connecting rod. An opening / closing element is slidably connected to the outer side of the movable rod. The opening / closing element has circumferentially evenly spaced channels, and a movable plate is slidably connected to the inner wall of one of the channels. One side of the movable plate is connected to a ball plug via a movable rod. This servo-driven venturi air valve with remote monitoring, when used with a signal transmitter and an external control system, allows remote control of the servo motor's operation. When the opening / closing element is closed, the channels automatically close; when the opening / closing element is opened, the channels automatically open, allowing air to flow through. The channels are evenly distributed circumferentially on the opening / closing element, resulting in more dispersed and uniform airflow.

Description

Technical Field

[0001] This invention relates to the field of air valves, specifically a servo-driven venturi air valve with remote monitoring. Background Technology

[0002] Air volume regulating valves are indispensable central air conditioning terminal accessories in ventilation, air conditioning and air purification projects of industrial plants and civil buildings. They are generally used in air conditioning and ventilation system ducts to regulate the air volume of branch pipes. They can also be used for the mixing and regulation of fresh air and return air. Air valves made based on the Venturi effect can be called Venturi air valves.

[0003] Existing Venturi dampers generally require manual opening and closing as well as adjustment of airflow, making remote control difficult. Furthermore, the opening and closing mechanism is typically switched by rotation or translation. When the mechanism is open, the airflow usually needs to pass over it, resulting in insufficient and uneven airflow. Summary of the Invention

[0004] The purpose of this invention is to provide a servo-driven venturi valve with remote monitoring to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a servo-driven venturi valve with remote monitoring, comprising a valve body, a through hole at the top of the valve body, a connecting rod rotatably connected within the through hole, the connecting rod passing through the through hole, and an opening / closing control and diversion mechanism movably connected to the bottom of the connecting rod, the opening / closing control and diversion mechanism comprising a movable rod, a round rod fixed at one end of the movable rod, the round rod movably connected to the bottom of the connecting rod, an opening / closing element slidably connected to the outer side of the movable rod, the opening / closing element having channels evenly distributed circumferentially, a movable plate slidably connected to one inner wall of the channel, and one side of the movable plate being connected to a ball plug via a movable rod.

[0006] Preferably, a support box is fixed to the top of the main body of the air valve, and an internal servo motor is fixed on one inner wall of the support box. A signal transmitter is fixed to one side of the internal servo motor, and the output end of the internal servo motor is connected to the worm gear.

[0007] Preferably, the bottom of the worm gear is meshed with a worm wheel, and a gear is fixed to the rear side of the worm wheel. The bottom of the gear is meshed with a rack, and one end of the rack is fixed to a support frame. The top of the connecting rod is rotatably connected to the inside of the support frame.

[0008] Preferably, a sealing sleeve is fixed to the inner top of the air valve body, and the sealing sleeve is fixed to the outside of the connecting rod.

[0009] Preferably, the bottom of the connecting rod is provided with a slide rail, and the round rod is movably connected in the slide rail.

[0010] Preferably, springs are symmetrically fixed on both sides of the movable rod, and a slider is fixed between the two springs. A first groove is provided inside the opening and closing component, and the slider is slidably connected in the first groove.

[0011] Preferably, a first hydraulic cylinder is uniformly fixed to the inner circumference of the opening and closing component, and a first piston is slidably connected inside the first hydraulic cylinder. The moving plate is fixed to one side of the first piston, and a second sliding groove is provided on one inner wall of the channel. The moving plate is slidably connected in the second sliding groove.

[0012] Preferably, a first limiting ring is fixed inside the channel, and the moving rod passes through the first limiting ring.

[0013] Preferably, the other end of the movable rod is fixed with a connecting pipe, the first oil cylinder is connected to the connecting pipe through a hose, the inner side of the air valve body is fixed with a second oil cylinder, the connecting pipe passes through one end of the first oil cylinder and is connected to the second piston, and the second piston is slidably connected inside the second oil cylinder.

[0014] Preferably, a second limiting ring is fixed to the inner side of the main body of the air valve, and the movable rod passes through the second limiting ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This servo-driven venturi damper with remote monitoring can achieve the purpose of remote control of opening and closing. When used with a signal transmitter and an external control system, the operation of the servo motor can be remotely controlled. The servo motor can drive the worm gear to rotate, the worm wheel and gear to rotate, the rack to move left and right, and the movable rod can move left and right under the action of the connecting rod, thereby driving the opening and closing parts to move left and right, which facilitates the control of the opening and closing of the damper body and the amount of airflow. 2. This servo-driven venturi damper with remote monitoring can achieve the purpose of dispersed and uniform ventilation. When the movable rod moves left and right, it can drive the second piston to move left and right. When the second piston moves to the left, all the first pistons move to the left, and all the ball plugs move to the left and block the channel. At the same time as closing the opening and closing parts, the channel automatically closes. When the second piston moves to the right, all the first pistons move to the right, and all the ball plugs move to the right and block the channel. At the same time as opening and closing parts, the channel automatically opens, and the air can flow from the channel. The airflow is evenly distributed around the opening and closing parts, making the airflow more dispersed and uniform. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a front view cross-sectional structural diagram of the opening and closing control and diversion mechanism of the present invention. Figure 5 This is a partial three-dimensional structural diagram of the opening and closing control and diversion mechanism of the present invention; Figure 6 This is a partial front cross-sectional view of the opening and closing control and diversion mechanism of the present invention; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Air valve body; 2. Support box; 3. Servo motor; 4. Signal transmitter; 5. Worm gear; 6. Worm wheel; 7. Gear; 8. Tooth rack; 9. Support frame; 10. Connecting rod; 11. Through hole; 12. Sealing sleeve; 13. Slide rail; 14. Opening / closing control and diversion mechanism; 1401. Movable rod; 1402. Round rod; 1403. Slider; 1404. Spring; 1405. First slide groove; 1406. Opening / closing element; 1407. Channel; 1408. First cylinder; 1409. First piston; 1410. Moving plate; 1411. Second slide groove; 1412. Moving rod; 1413. First limiting ring; 1414. Ball plug; 1415. Hose; 1416. Connecting pipe; 1417. Second cylinder; 1418. Second piston; 15. Second limiting ring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 7This invention provides a technical solution: a servo-driven venturi valve with remote monitoring, comprising a valve body 1, a through hole 11 at the top of the valve body 1, a connecting rod 10 rotatably connected inside the through hole 11, the connecting rod 10 passing through the through hole 11, and an opening and closing control and diversion mechanism 14 movably connected to the bottom of the connecting rod 10. The opening and closing control and diversion mechanism 14 includes a movable rod 1401, a round rod 1402 fixed at one end of the movable rod 1401, the round rod 1402 being movably connected to the bottom of the connecting rod 10, an opening and closing element 1406 slidably connected to the outside of the movable rod 1401, a channel 1407 evenly opened circumferentially on the opening and closing element 1406, a movable plate 1410 slidably connected to one inner wall of the channel 1407, and one side of the movable plate 1410 being connected to a ball plug 1414 via a movable rod 1412.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a support box 2 is fixed to the top of the main body 1 of the air valve, and an internal servo motor 3 is fixed to one inner wall of the support box 2. A signal transmitter 4 is fixed to one side of the internal servo motor 3, and the output end of the internal servo motor 3 is connected to the worm gear 5. The operation of the servo motor 3 can be remotely controlled by using the signal transmitter 4 and an external control system. The worm gear 5 can rotate under the action of the servo motor 3, thereby driving the corresponding components to rotate.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the worm 5 is meshed with a worm wheel 6, and a gear 7 is fixed to the rear side of the worm wheel 6. The bottom of the gear 7 is meshed with a rack 8, and one end of the rack 8 is fixed with a support frame 9. The top of the connecting rod 10 is rotatably connected to the inside of the support frame 9. When the worm 5 rotates, it can drive the worm wheel 6 to rotate, and the gear 7 will rotate accordingly, thereby driving the rack 8 to move left and right. At this time, the connecting rod 10 rotates in the through hole 11, and at the same time, the top of the connecting rod 10 rotates inside the support frame 9.

[0023] In this embodiment, as Figure 2 As shown, a sealing sleeve 12 is fixed to the inner top of the air valve body 1, and the sealing sleeve 12 is fixed to the outside of the connecting rod 10. The sealing sleeve 12 can play the role of isolation and sealing.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a slide rail 13 is provided at the bottom of the connecting rod 10, and the round rod 1402 is movably connected in the slide rail 13. When the connecting rod 10 rotates, the round rod 1402 moves in the slide rail 13, thereby driving the movable rod 1401 to move left and right.

[0025] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, springs 1404 are symmetrically fixed on both sides of the movable rod 1401, and a slider 1403 is fixed between the two springs 1404. A first groove 1405 is provided in the opening and closing part 1406, and the slider 1403 is slidably connected in the first groove 1405. When the movable rod 1401 moves left and right, the opening and closing part 1406 moves left and right accordingly, which facilitates sealing or opening the air valve body 1. When the opening and closing part 1406 is in the open state, the air flows in the air valve body 1, and the slider 1403 can slide in the first groove 1405. The two springs 1404 can play a supporting and buffering role.

[0026] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a first hydraulic cylinder 1408 is uniformly fixed in the inner circumference of the opening and closing member 1406, and a first piston 1409 is slidably connected in the first hydraulic cylinder 1408. A moving plate 1410 is fixed to one side of the first piston 1409. A second sliding groove 1411 is provided on one inner wall of the channel 1407. The moving plate 1410 is slidably connected in the second sliding groove 1411. When the first piston 1409 slides in the first hydraulic cylinder 1408, the moving plate 1410 moves together with the first piston 1409, thereby driving the moving rod 1412 and the ball plug 1414 to move. The ball plug 1414 can seal or open the channel 1407. The second sliding groove 1411 plays a limiting role for the moving plate 1410.

[0027] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a first limiting ring 1413 is fixed inside the channel 1407, and the moving rod 1412 passes through the first limiting ring 1413. The first limiting ring 1413 supports and limits the moving rod 1412.

[0028] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the other end of the movable rod 1401 is fixed with a connecting pipe 1416. The first cylinder 1408 is connected to the connecting pipe 1416 through a hose 1415. The inner side of the air valve body 1 is fixed with a second cylinder 1417. The connecting pipe 1416 passes through one end of the first cylinder 1408 and is connected to the second piston 1418. The second piston 1418 is slidably connected inside the second cylinder 1417. The hose 1415 and the connecting pipe 1416 serve to connect the first cylinder 1408 and the second cylinder 1417. When the movable rod 1401 moves left and right, it can drive the connecting pipe 1416 and the second piston 1418 to move left and right. When the second piston 1418 moves to the left, all the first pistons 1409 move to the left. When the second piston 1418 moves to the right, all the first pistons 1409 move to the right. The movement of the first pistons 1409 can drive the moving plate 1410, the moving rod 1412 and the ball plug 1414 to move, which facilitates the opening and closing of the control channel 1407.

[0029] In this embodiment, as Figure 1 and Figure 2 As shown, a second limiting ring 15 is fixed on the inner side of the air valve body 1, and the movable rod 1401 passes through the second limiting ring 15. The second limiting ring 15 plays a supporting and limiting role for the movable rod 1401.

[0030] The method of use and advantages of this invention: The servo-driven venturi valve with remote monitoring operates as follows: like Figures 1 to 7 As shown: First, the main body 1 of the air valve is installed on the air duct. A signal transmitter 4 and an external control system are used to remotely control the operation of the servo motor 3. The signal transmitter 4 is model HD-600TH. The servo motor 3 drives the worm gear 5 to rotate, which in turn drives the worm wheel 6 and gear 7 to rotate. The rack 8 moves left and right, driving the connecting rod 10 to rotate. The connecting rod 10 connects the rack 8 and the movable rod 1401. When the rack 8 moves left and right, the movable rod 1401 can move left and right under the action of the connecting rod 10. At this time, the connecting rod 10 rotates within the through hole 11, and the round rod 1402 moves within the slide rail 13. The movable rod 1401... The movement of the opening and closing element 1406 facilitates the control of the opening and closing of the air valve body 1 and the air volume. When the opening and closing element 1406 moves to the left to close, the moving rod 1401 moves to the left, causing the connecting pipe 1416 and the second piston 1418 to move to the left. All the first pistons 1409 move to the left, and all the ball plugs 1414 move to the left, thereby sealing all the channels 1407. When the opening and closing element 1406 moves to the right to open, all the ball plugs 1414 move to the right, thereby opening all the channels 1407. The air can flow in the channels 1407. The channels 1407 are evenly distributed around the air valve body 1, making the air flow more dispersed and uniform.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0032] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A servo-driven venturi air valve with remote monitoring, comprising an air valve body (1), characterized in that: The top of the main body (1) of the air valve is provided with a through hole (11). A connecting rod (10) is rotatably connected in the through hole (11). The connecting rod (10) passes through the through hole (11). The bottom of the connecting rod (10) is movably connected with an opening and closing control and diversion mechanism (14). The opening and closing control and diversion mechanism (14) includes a movable rod (1401). One end of the movable rod (1401) is fixed with a round rod (1402). The round rod (1402) is movably connected to the bottom of the connecting rod (10). An opening and closing element (1406) is slidably connected to the outside of the movable rod (1401). The opening and closing element (1406) is evenly provided with a channel (1407) in the circumferential direction. A movable plate (1410) is slidably connected to one inner wall of the channel (1407). One side of the movable plate (1410) is connected to the ball plug (1414) through a movable rod (1412).

2. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: The top of the main body (1) of the air valve is fixed with a support box (2), and an inner servo motor (3) is fixed on one inner wall of the support box (2). A signal transmitter (4) is fixed on one side of the inner servo motor (3), and the output end of the inner servo motor (3) is connected to the worm gear (5).

3. A servo-driven venturi valve with remote monitoring according to claim 2, characterized in that: The bottom of the worm (5) is meshed with a worm wheel (6), and a gear (7) is fixed to the rear side of the worm wheel (6). The bottom of the gear (7) is meshed with a rack (8), and a support frame (9) is fixed to one end of the rack (8). The top of the connecting rod (10) is rotatably connected to the inside of the support frame (9).

4. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: A sealing sleeve (12) is fixed to the inner top of the valve body (1), and the sealing sleeve (12) is fixed to the outside of the connecting rod (10).

5. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: The bottom of the connecting rod (10) is provided with a slide (13), and the round rod (1402) is movably connected in the slide (13).

6. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: Springs (1404) are symmetrically fixed on both sides of the movable rod (1401), and a slider (1403) is fixed between the two springs (1404). A first groove (1405) is provided in the opening and closing part (1406), and the slider (1403) is slidably connected in the first groove (1405).

7. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: The opening and closing component (1406) has a first hydraulic cylinder (1408) uniformly fixed in the inner circumference, and a first piston (1409) is slidably connected in the first hydraulic cylinder (1408). The moving plate (1410) is fixed on one side of the first piston (1409). A second sliding groove (1411) is opened on one inner wall of the channel (1407), and the moving plate (1410) is slidably connected in the second sliding groove (1411).

8. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: A first limiting ring (1413) is fixed inside the channel (1407), and the moving rod (1412) passes through the first limiting ring (1413).

9. A servo-driven venturi valve with remote monitoring according to claim 7, characterized in that: The other end of the movable rod (1401) is fixed with a connecting pipe (1416). The first oil cylinder (1408) is connected to the connecting pipe (1416) through a hose (1415). The inner side of the air valve body (1) is fixed with a second oil cylinder (1417). The connecting pipe (1416) passes through one end of the first oil cylinder (1408) and is connected to the second piston (1418). The second piston (1418) is slidably connected inside the second oil cylinder (1417).

10. A servo-driven venturi valve with remote monitoring according to claim 1, characterized in that: The inner side of the main body (1) of the air valve is fixed with a second limiting ring (15), and the movable rod (1401) passes through the second limiting ring (15).

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