Air valve capable of being automatically closed

Abstract

The utility model relates to the technical field of air valves, and discloses an air valve capable of being automatically closed. The air valve capable of being automatically closed comprises a connecting pipe, a lifting groove is fixedly formed in one side of the connecting pipe, a motor is movably connected into the lifting groove, a supporting column is fixedly installed on one side of the motor, and a driving gear is fixedly installed on the outer side of the supporting column; a telescopic rod is fixedly installed at the bottom of the interior of the lifting groove, a damping spring is fixedly installed at the top of the telescopic rod, and a top cover is movably connected to the top of the connecting pipe. The telescopic rod in the lifting groove stretches out and draws back, so that the motor can be pushed to move towards the top, the driving gear and the driven gear are embedded, when front-back operation is not completed, buffering is conducted through contraction of the damping spring, and the driving gear can be driven to rotate through operation of the motor; therefore, the driving gear and the driven gear rotate in an embedded mode, and the switch valve can be driven to be closed.

Description

Technical Field

[0001] The utility model relates to the technical field of air valves, and particularly relates to an air valve that can be automatically closed. Background Technique

[0002] An air valve is a special valve used to prevent the negative pressure in the pipe caused by the pressure reduction wave during the transient process. It is usually installed at the high point where the dynamic water pressure is relatively low during the normal operation of the pipeline and where liquid column separation may occur during the transient flow process. In order to protect the pipeline, an air valve can be installed. The air valve is also called an exhaust valve or an intake valve.

[0003] The existing Chinese utility model patent with the reference publication number: CN219558398U discloses an air valve, belonging to the technical field of valves, to solve the problem that the existing air valve has low accuracy when changing the oxygen flow rate, which easily leads to waste of oxygen resources. It includes a valve body, an inlet pipe, an outlet pipe, a positioning rod, a sliding rod, a positioning claw and a positioning tooth; the inlet pipe is fixedly connected to the lower end face of the valve body; the outlet pipe is fixedly connected to the right side of the valve body; the positioning rod slides up and down in the upper part of the valve body; the sliding rod slides up and down inside the positioning rod; the positioning claws are rotatably connected to the left and right sides of the positioning rod; the positioning teeth are fixedly connected to the upper part of the valve body; the utility model is convenient to determine the size of the air outlet, facilitate the adjustment of the oxygen flow rate, improve the accuracy of oxygen flow control, improve the reliability of the air valve, reduce the waste of oxygen resources, and at the same time ensure the oxygen inhalation effect of patients.

[0004] The existing air valves are automatically opened and closed by the internal air pressure during use. When in use, it is not convenient to control the opening or closing, so the operation is more cumbersome when the equipment needs to be closed. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the existing technology, the utility model provides an air valve that can be automatically closed, which has the advantages of being automatically closed and convenient to control, and solves the above technical problems.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: an air valve that can be automatically closed, including:

[0009] Connecting pipe, one side of the connecting pipe is fixedly installed with a lifting groove, the inside of the lifting groove is movably connected with a motor, one side of the motor is fixedly installed with a support column, the side of the support column presents a "T" shape, the outside of the support column is fixedly installed with a driving gear, the bottom inside of the lifting groove is fixedly installed with a telescopic rod, the top of the telescopic rod is fixedly installed with a damping spring, the top of the connecting pipe is movably connected with a top cover, one side inside the top cover is fixedly installed with an air inlet hole, the top of the air inlet hole is fixedly installed with an air outlet hole, one side of the bottom of the top cover is fixedly installed with an electric reel, and a cable is movably connected inside the electric reel.

[0010] As a preferred technical solution of the present invention, a connecting flange is fixedly installed at the bottom of the connecting pipe, and connecting bolts are movably connected inside the periphery of the connecting flange. The connecting bolts are structures for connection.

[0011] As a preferred technical solution of the present invention, a switch valve is fixedly installed on one side of the connecting pipe, and a driven gear is fixedly installed on the outer side of the middle of the switch valve. The driven gear is a structure for driving rotation through the driving gear.

[0012] As a preferred technical solution of the present invention, a fixing groove is fixedly installed on one side inside the connecting pipe. The fixing groove is a structure for fixing.

[0013] As a preferred technical solution of the present invention, an air valve body is fixedly installed at the top of the connecting pipe, and a rotating shaft is fixedly installed on one side inside the air valve body. The rotating shaft is a structure for rotation.

[0014] As a preferred technical solution of the present invention, a support rod is movably connected inside the rotating shaft, and a sealing piece is fixedly installed on one side of the top of the support rod. The sealing piece is a structure for fitting and sealing the air outlet hole.

[0015] As a preferred technical solution of the present invention, a floating ball is fixedly installed on one side of the support rod. The floating ball is a structure for floating.

[0016] Compared with the prior art, the present invention provides an air valve that can be automatically closed, and has the following beneficial effects:

[0017] 1. Through the expansion and contraction of the telescopic rod inside the lifting groove of the present invention, the motor can be pushed to move upward, so that the driving gear and the driven gear are engaged. When the front and back are not completed, buffering is carried out through the contraction of the damping spring. By the operation of the motor, the support column and the driving gear can be driven to rotate, so that the driving gear and the driven gear are engaged and rotated, thereby driving the switch valve to complete automatic closing, improving the convenience of the air valve that can be automatically closed.

[0018] 2. The utility model can discharge the gas inside the air valve body from the air outlet hole through the air inlet hole in the top cover. Through the operation of the electric reel, the cable can be wound or extended. When it needs to be closed, it is wound, thereby driving the floating ball to move upward, making the sealing piece fit the air inlet hole for sealing, improving the automation effect and convenience of the automatically closable air valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the connecting pipe of the utility model;

[0021] Figure 3 It is a schematic diagram of the lifting groove of the utility model;

[0022] Figure 4 It is a schematic diagram of the air valve body of the utility model;

[0023] Figure 5 It is a schematic diagram of the top cover of the utility model.

[0024] Wherein: 1. Connecting pipe; 11. Connecting flange; 12. Connecting bolt; 13. Switch valve; 14. Driven gear; 15. Fixed groove; 2. Lifting groove; 21. Motor; 22. Support column; 23. Driving gear; 24. Expansion rod; 25. Damping spring; 3. Air valve body; 31. Rotating shaft; 32. Support rod; 33. Sealing piece; 34. Floating ball; 4. Top cover; 41. Air inlet hole; 42. Air outlet hole; 43. Electric reel; 44. Cable. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0026] In the description of the utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" 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. 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.

[0028] Please refer to Figure 1 - Figure 5 , in this embodiment, an air valve that can be automatically closed includes: a connecting pipe 1, a connecting flange 11 is fixedly installed at the bottom of the connecting pipe 1, connecting bolts 12 are movably connected inside the periphery of the connecting flange 11, a switch valve 13 is fixedly installed on one side of the connecting pipe 1, a driven gear 14 is fixedly installed on the outer side of the middle of the switch valve 13, and a fixed groove 15 is fixedly installed on one side inside the connecting pipe 1.

[0029] Specifically, the connecting flange 11 is a structure for connection, fixed by the connecting bolts 12, the connecting pipe 1 can be closed by rotating the switch valve 13, and the connecting pipe 1 can be automatically closed by the engagement of the driven gear 14 and the driving gear 23.

[0030] A lifting groove 2 is fixedly installed on one side of the connecting pipe 1, a motor 21 is movably connected inside the lifting groove 2, a support column 22 is fixedly installed on one side of the motor 21, the support column 22 is in a "T" shape on the side, a driving gear 23 is fixedly installed on the outer side of the support column 22, a telescopic rod 24 is fixedly installed at the bottom inside the lifting groove 2, and a damping spring 25 is fixedly installed at the top of the telescopic rod 24.

[0031] Specifically, the motor 21 can drive the support column 22 to rotate, the support column 22 can drive the driving gear 23 to rotate, and the telescopic rod 24 can push the motor 21 to move by its telescopic movement, so that the driving gear 23 and the driven gear 14 are engaged.

[0032] An air valve body 3 is fixedly installed at the top of the connecting pipe 1, a rotating shaft 31 is fixedly installed on one side inside the air valve body 3, a support rod 32 is movably connected inside the rotating shaft 31, a sealing piece 33 is fixedly installed on one side at the top of the support rod 32, and a floating ball 34 is fixedly installed on one side of the support rod 32.

[0033] Specifically, the floating ball 34 can float with water, supported by the rotating shaft 31, and can drive the support rod 32 to rotate.

[0034] The top of the connecting pipe 1 is movably connected with a top cover 4. One side inside the top cover 4 is fixedly installed with an air inlet hole 41. The top of the air inlet hole 41 is fixedly installed with an air outlet hole 42. One side at the bottom of the top cover 4 is fixedly installed with an electric winder 43. The inside of the electric winder 43 is movably connected with a cable 44.

[0035] Specifically, the electric winder 43 can wind the cable 44, thereby driving the floating ball 34 to move upward, making the sealing piece 33 fit the air inlet hole 41 for sealing and closing.

[0036] In use, first, install and connect the automatically closable air valve through the connecting flange 11. The connecting pipe 1 can be fixed through the connecting bolts 12 in the middle of the connecting flange 11. The connecting pipe 1 can be closed by rotating the switch valve 13. Through the telescoping of the telescopic rod 24 inside the fixing groove 15, the motor 21 can be pushed upward, so that the driving gear 23 and the driven gear 14 are engaged. When they are not engaged, buffer is carried out through the contraction of the damping spring 25. The motor 21 operates to drive the support column 22 and the driving gear 23 on the outside to rotate, so that the driving gear 23 and the driven gear 14 are engaged, and then the damping spring 25 rebounds, driving the driven gear 14 to rotate, thereby automatically closing the switch valve 13, improving the convenience and practicality of the automatically closable air valve. When water enters the inside of the air valve body 3, the floating ball 34 rises, so that the rotating shaft 31 drives the support rod 32 to rotate, making the sealing piece 33 at the top of the support rod 32 fit the air inlet hole 41 at the bottom of the top cover 4 for sealing, thereby closing the automatically closable air valve. When it is necessary to automatically close the automatically closable air valve, through the operation of the electric winder 43, the cable 44 is wound, driving the floating ball 34 to move upward, making the sealing piece 33 on one side of the top of the support rod 32 fit the air inlet hole 41 for sealing, and driving the automatically closable air valve to automatically close, improving the practicality and controllability of the automatically closable air valve. When the electric winder 43 loosens the cable 44, the automatically closable air valve operates normally.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air valve that can be automatically closed, characterized in that, The automatically closable air valve includes a connecting pipe (1). One side of the connecting pipe (1) is fixedly installed with a lifting groove (2). A motor (21) is movably connected inside the lifting groove (2). One side of the motor (21) is fixedly installed with a support column (22). The side of the support column (22) is in a "T" shape. An active gear (23) is fixedly installed on the outer side of the support column (22). A telescopic rod (24) is fixedly installed at the bottom inside the lifting groove (2). A damping spring (25) is fixedly installed at the top of the telescopic rod (24). The top of the connecting pipe (1) is movably connected with a top cover (4). One side inside the top cover (4) is fixedly installed with an air inlet hole (41). An air outlet hole (42) is fixedly installed at the top of the air inlet hole (41). One side at the bottom of the top cover (4) is fixedly installed with an electric reel (43). A cable (44) is movably connected inside the electric reel (43).

2. The automatic shut-off air valve according to claim 1, wherein: A connecting flange (11) is fixedly installed at the bottom of the connecting pipe (1). Connecting bolts (12) are movably connected inside the periphery of the connecting flange (11).

3. The automatic shut-off air valve according to claim 2, characterized in that: A switch valve (13) is fixedly installed on one side of the connecting pipe (1). A driven gear (14) is fixedly installed on the outer side of the middle of the switch valve (13).

4. The automatic shut-off air valve according to claim 3, wherein: A fixing groove (15) is fixedly installed on one side inside the connecting pipe (1).

5. The automatic shut-off air valve according to claim 1, characterized in that: An air valve body (3) is fixedly installed at the top of the connecting pipe (1). A rotating shaft (31) is fixedly installed on one side inside the air valve body (3).

6. The automatic shut-off air valve according to claim 5, characterized in that: A support rod (32) is movably connected inside the rotating shaft (31). A sealing piece (33) is fixedly installed on one side at the top of the support rod (32).

7. The automatically closable air valve according to claim 6, characterized in that: A floating ball (34) is fixedly installed on one side of the support rod (32).

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