Pneumatic control drain valve

Abstract

The invention relates to the technical field of drainage valves, and particularly discloses a pneumatic control drainage valve which comprises a drainage pipe body, a drainage valve body is arranged in the drainage pipe body, and a pneumatic valve is arranged above the drainage pipe body; the pneumatic control mechanism is located in the pneumatic valve, and the pneumatic control mechanism can control the drainage valve; and the kinetic energy recovery mechanism is located outside the pneumatic valve, and the kinetic energy recovery mechanism can pneumatically control the drainage valve when the pneumatic control mechanism stops and then recover pneumatic kinetic energy. When the drainage valve is opened, the pneumatic control mechanism inflates the interior of the pneumatic valve to control opening, closing and adjustment of the drainage valve; when the drainage valve is closed, inflation of the interior of the pneumatic valve is stopped, gas in the pneumatic valve returns to the interior of the gas inlet pipe through the kinetic energy recovery mechanism, manual and electric resetting of a gas inlet rod in the gas inlet pipe is avoided, inflation of the pneumatic valve next time is facilitated, and the pneumatic valve is convenient to use, energy-saving and environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of drain valves, in particular to a pneumatically controlled drain valve. Background Art

[0002] Pneumatically controlled drain valves are primarily used in air compressor systems. They automatically discharge, effectively preventing equipment from moisture and corrosion, and extending equipment life. By precisely controlling the drainage process, pneumatically controlled drain valves ensure stable system operation, reducing the need for manual intervention and lowering maintenance costs. In environments prone to icing, pneumatically controlled drain valves can drain water in a timely manner, preventing pipes and equipment from freezing and ensuring production efficiency and safety.

[0003] When using the existing pneumatically controlled drain valve, it is necessary to inflate the inside of the pneumatic valve to achieve the purpose of regulating the drain valve, and adjust the size of the drain valve according to the amount of gas entering the pneumatic valve. However, when the control of the pneumatic valve is completed, it needs to be manually or electrically reset or vented, which is not only time-consuming and labor-intensive, but also not energy-saving and environmentally friendly. For this reason, we propose a pneumatically controlled drain valve. Summary of the Invention

[0004] The purpose of the present invention is to provide a pneumatically controlled drain valve to solve the problem raised in the above background technology that manual or electric resetting or exhausting is required when the pneumatic valve is finished controlling, which is not only time-consuming and labor-intensive, but also not energy-saving and environmentally friendly.

[0005] To achieve the above object, the present invention provides the following technical solution: a pneumatically controlled drain valve, comprising a drain pipe body, a drain valve disposed inside the drain pipe body, and a pneumatic valve disposed above the drain pipe body;

[0006] A pneumatic control mechanism, the pneumatic control mechanism is located inside the pneumatic valve and is capable of controlling the drain valve;

[0007] A kinetic energy recovery mechanism is located outside the pneumatic valve and can recover pneumatic kinetic energy after pneumatically controlling the drain valve when the pneumatic control mechanism stops.

[0008] Among them, the pneumatic control mechanism includes an air inlet hole opened on the outer wall of the pneumatic valve, and the outer wall of the pneumatic valve is fixedly connected with an air inlet pipe, and the air inlet pipe is located outside the air inlet hole. The air inlet pipe is spiral-shaped at one end away from the pneumatic valve, and the air inlet pipe is provided with a pneumatic control component capable of inflating the pneumatic valve at one end away from the pneumatic valve.

[0009] Among them, the pneumatic control component includes an intake rod arranged inside the intake pipe, the intake rod is spiral-shaped, the end of the intake rod is fixedly connected to a piston pad, the piston pad is located inside the intake pipe, the intake rod is fixedly connected to an pneumatic disk at one end away from the piston pad, the pneumatic disk is fixedly connected to a sliding rod at one end away from the intake rod, the sliding rod is slidably connected to a sliding cylinder at the periphery, and the sliding cylinder is fixedly connected to a motor at one end away from the pneumatic disk.

[0010] In which, the pneumatic valve includes a connecting rod fixedly connected to the upper end of the drain valve, the end of the connecting rod away from the drain valve is located inside the pneumatic valve, the end of the connecting rod away from the drain valve is fixedly connected to a sliding disk, the upper end of the sliding disk is fixedly connected to a support rod, the inner wall of the pneumatic valve is fixedly connected to a spring, the spring is located at the end of the support rod away from the sliding disk, the inner wall of the pneumatic valve is fixedly connected to a telescopic cylinder, the telescopic cylinder is located in the center of the spring, the telescopic rod is slidably connected inside the telescopic cylinder, the telescopic rod is fixedly connected to an extrusion disk at one end away from the telescopic cylinder, the end of the spring away from the inner wall of the pneumatic valve is fixedly connected to the extrusion disk, and the extrusion disk abuts the support rod.

[0011] Among them, the kinetic energy recovery mechanism includes an air outlet opened on the outer wall of the pneumatic valve, the air outlet is located above the air inlet, the outer wall of the pneumatic valve is fixedly connected with an air outlet pipe, the air outlet pipe is located outside the air outlet, the inner wall of the air outlet is fixedly connected with an electromagnetic valve, the electromagnetic valve is connected to the motor circuit, the end of the air outlet pipe away from the air outlet is connected to the air inlet pipe, and a recovery component for recovering the kinetic energy of the gas is provided at the connection between the air outlet pipe and the air inlet pipe.

[0012] Among them, the recovery part includes a recovery rod fixedly connected to the inner wall of the outlet pipe, a torsion spring fixedly connected to the outer wall of the recovery rod, and a recovery plate fixedly connected to one end of the torsion spring away from the recovery rod. The recovery plate is located outside the recovery rod and is rotatably connected to the recovery rod. The recovery plate is located above the air inlet pipe.

[0013] Wherein, a stopper is fixedly connected to the inner wall of the air outlet pipe, and the stopper is located at one end of the recovery plate away from the air inlet pipe, and the recovery plate abuts against the stopper.

[0014] The present invention has at least the following beneficial effects:

[0015] When the drain valve is opened, the pneumatic control mechanism is used to inflate the inside of the pneumatic valve to control the opening and closing and adjustment of the drain valve. When the drain valve is closed, the inflation of the inside of the pneumatic valve is stopped, and the gas inside the pneumatic valve is returned to the inside of the intake pipe through the kinetic energy recovery mechanism, avoiding manual or electric resetting of the intake rod inside the intake pipe, making it convenient to inflate the pneumatic valve next time. The method is not only convenient to use but also energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the drainage pipe of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the air intake pipe of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the pneumatic valve of the present invention;

[0020] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0021] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of area C in the middle.

[0022] In the figure: 1. Drain pipe body; 11. Drain valve; 12. Pneumatic valve; 13. Connecting rod; 14. Sliding disc; 15. Support rod; 16. Spring; 17. Telescopic cylinder; 18. Telescopic rod; 19. Squeeze disc; 2. Pneumatic control mechanism; 21. Air inlet; 22. Air inlet pipe; 3. Kinetic energy recovery mechanism; 31. Air outlet; 32. Air outlet pipe; 33. Solenoid valve; 4. Pneumatic control component; 41. Air inlet rod; 42. Piston pad; 43. Pneumatic disc; 44. Sliding rod; 45. Sliding cylinder; 46. Motor; 5. Recovery component; 51. Recovery rod; 52. Torsion spring; 53. Recovery plate; 54. Stopper. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 , the present invention provides a technical solution: a pneumatically controlled drain valve, comprising a drain pipe body 1, a drain valve 11 is arranged inside the drain pipe body 1, and a pneumatic valve 12 is arranged above the drain pipe body 1;

[0025] Pneumatic control mechanism 2, the pneumatic control mechanism 2 is located inside the pneumatic valve 12, and the pneumatic control mechanism 2 can control the drain valve 11;

[0026] The kinetic energy recovery mechanism 3 is located outside the pneumatic valve 12 and can recover pneumatic kinetic energy after pneumatically controlling the drain valve 11 when the pneumatic control mechanism 2 stops;

[0027] When the drain valve 11 is opened, the pneumatic control mechanism 2 is used to inflate the pneumatic valve 12 to control the opening and closing and adjustment of the drain valve 11. When the drain valve 11 is closed, the inflation of the pneumatic valve 12 is stopped, and the gas inside the pneumatic valve 12 returns to the inside of the intake pipe 22 through the kinetic energy recovery mechanism 3, avoiding manual or electric resetting of the intake rod 41 inside the intake pipe 22, making it convenient to inflate the pneumatic valve 12 next time. This is not only convenient to use, but also energy-saving and environmentally friendly.

[0028] The pneumatic control mechanism 2 includes an air inlet hole 21 formed on the outer wall of the pneumatic valve 12, an air inlet pipe 22 is fixedly connected to the outer wall of the pneumatic valve 12, the air inlet pipe 22 is located outside the air inlet hole 21, the air inlet pipe 22 is spirally connected at one end away from the pneumatic valve 12, and a pneumatic control component 4 capable of inflating the pneumatic valve 12 is provided at one end of the air inlet pipe 22 away from the pneumatic valve 12, the pneumatic control component 4 includes an air inlet rod 41 arranged inside the air inlet pipe 22, the air inlet rod 41 is spirally connected, a piston pad 42 is fixedly connected to the end of the air inlet rod 41, the piston pad 42 is located inside the air inlet pipe 22, an end of the air inlet rod 41 away from the piston pad 42 is fixedly connected to a pneumatic disk 43, an end of the pneumatic disk 43 away from the air inlet rod 41 is fixedly connected to a sliding rod 44, a sliding cylinder 45 is slidably connected to the periphery of the sliding rod 44, and an end of the sliding cylinder 45 away from the pneumatic disk 43 is fixedly connected to a motor 46;

[0029] When it is necessary to open or adjust the drain valve 11 inside the drain pipe body 1, start the motor 46. The motor 46 drives the sliding rod 44 to rotate through the sliding cylinder 45. The sliding rod 44 drives the pneumatic disk 43 to rotate. At this time, the pneumatic disk 43 drives the air intake rod 41 located inside the air intake pipe 22 to rotate. Since the air intake pipe 22 and the air intake rod 41 are both spiral, the rotation of the pneumatic disk 43 not only drives the axial sliding of the sliding rod 44 in the sliding cylinder 45, but also prompts the air intake rod 41 to gradually penetrate along the axial direction of the air intake pipe 22 while rotating. The piston pad 42 located at the end of the air intake rod 41 pushes the gas inside the air intake pipe 22 into the pneumatic valve 12 through the air intake hole 21, thereby driving the pneumatic valve 12.

[0030] The pneumatic valve 12 includes a connecting rod 13 fixedly connected to the upper end of the drain valve 11, and the end of the connecting rod 13 away from the drain valve 11 is located inside the pneumatic valve 12. The end of the connecting rod 13 away from the drain valve 11 is fixedly connected to a sliding disk 14, and the upper end of the sliding disk 14 is fixedly connected to a support rod 15. A spring 16 is fixedly connected to the inner wall of the pneumatic valve 12, and the spring 16 is located at the end of the support rod 15 away from the sliding disk 14. A telescopic cylinder 17 is fixedly connected to the inner wall of the pneumatic valve 12, and the telescopic cylinder 17 is located in the center of the spring 16. A telescopic rod 18 is slidably connected to the inside of the telescopic cylinder 17, and an extrusion disk 19 is fixedly connected to the end of the telescopic rod 18 away from the telescopic cylinder 17. The end of the spring 16 away from the inner wall of the pneumatic valve 12 is fixedly connected to the extrusion disk 19, and the extrusion disk 19 abuts the support rod 15;

[0031] After the gas enters the pneumatic valve 12 through the air inlet 21, the gas immediately penetrates into the gap between the extrusion disc 19 and the sliding disc 14, and applies upward pressure to the extrusion disc 19, causing the extrusion disc 19 to move upward. At this time, the spring 16 is compressed, and the extrusion disc 19 squeezes the spring 16 while pushing the telescopic rod 18 into the telescopic cylinder 17. At the same time, the extrusion disc 19 is out of contact with the support rod 15. When the extrusion disc 19 no longer squeezes the support rod 15, the connecting rod 13 drives the drain valve 11 to move upward. At this time, the drain valve 11 is located inside the drain pipe body 1 and slides upward. At this time, the valve of the drain pipe body 1 is open. By precisely controlling the amount of gas introduced into the pneumatic valve 12, the opening and closing state of the drain valve 11 can be effectively regulated and controlled.

[0032] The kinetic energy recovery mechanism 3 includes an air outlet 31 formed on the outer wall of the pneumatic valve 12, and the air outlet 31 is located above the air inlet 21. An air outlet pipe 32 is fixedly connected to the outer wall of the pneumatic valve 12, and the air outlet pipe 32 is located outside the air outlet hole 31. An electromagnetic valve 33 is fixedly connected to the inner wall of the air outlet hole 31, and the electromagnetic valve 33 is circuit-connected to the motor 46. The end of the air outlet pipe 32 away from the air outlet hole 31 is connected to the air inlet pipe 22. A recovery component 5 for recovering the kinetic energy of the gas is provided at the connection between the air outlet pipe 32 and the air inlet pipe 22. The recovery component 5 includes a recovery rod 51 fixedly connected to the inner wall of the air outlet pipe 32, a torsion spring 52 is fixedly connected to the outer wall of the recovery rod 51, and a recovery plate 53 is fixedly connected to the end of the torsion spring 52 away from the recovery rod 51. The recovery plate 53 is located outside the recovery rod 51 and is rotatably connected to the recovery rod 51, and the recovery plate 53 is located above the air inlet pipe 22;

[0033] When the drain valve 11 inside the drain pipe body 1 needs to be closed, the motor 46 circuit is disconnected. At this time, the electromagnetic valve 33 inside the air outlet 31 is disconnected. The gas inside the pneumatic valve 12 enters the air outlet pipe 32 through the electromagnetic valve 33. A large amount of gas pushes the recovery plate 53 at the connection between the air outlet pipe 32 and the air inlet pipe 22. At this time, the recovery plate 53 rotates around the recovery rod 51, and the torsion spring 52 accumulates force. The gas re-enters the air inlet pipe 22 through the air outlet pipe 32. After rotating 90 degrees, the recovery plate 53 blocks the air inlet pipe 22 near the pneumatic valve 12 at the junction of the air outlet pipe 32 and the air inlet pipe 22, forcing the gas to return through the air inlet pipe 22. The gas then abuts against the piston pad 42 and pushes the piston pad 42, causing the air inlet rod 41 to move spirally within the air inlet pipe 22 until it returns to its original position. During the resetting process of the piston pad 42, no manual or electric operation is required, and the original gas inside the pneumatic valve 12 is used to push the piston pad 42, which is very energy-saving and environmentally friendly.

[0034] After the gas inside the pneumatic valve 12 is emptied, the gas inside the outlet pipe 32 no longer pushes the recovery plate 53. At this time, the recovery plate 53 is reset, and the torsion spring 52 drives the recovery plate 53 to reset. Since the inner wall of the outlet pipe 32 is fixedly connected with a block 54, the block 54 is located at the end of the recovery plate 53 away from the air inlet pipe 22, the recovery plate 53 abuts the block 54, and the recovery plate 53 abuts the block 54 again and seals the outlet pipe 32, so as to facilitate the next discharge of the gas inside the pneumatic valve 12.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatically controlled drain valve, comprising: A drainage pipe body (1), wherein a drainage valve (11) is provided inside the drainage pipe body (1), and a pneumatic valve (12) is provided above the drainage pipe body (1); It is characterized by further comprising: A pneumatic control mechanism (2), the pneumatic control mechanism (2) being located inside the pneumatic valve (12), and the pneumatic control mechanism (2) being capable of controlling the drain valve (11); a kinetic energy recovery mechanism (3), the kinetic energy recovery mechanism (3) being located outside the pneumatic valve (12), and the kinetic energy recovery mechanism (3) being capable of recovering pneumatic kinetic energy after pneumatically controlling the drain valve (11) when the pneumatic control mechanism (2) stops; The pneumatic control mechanism (2) comprises an air inlet hole (21) formed on the outer wall of the pneumatic valve (12); an air inlet pipe (22) is fixedly connected to the outer wall of the pneumatic valve (12); the air inlet pipe (22) is located outside the air inlet hole (21); the end of the air inlet pipe (22) away from the pneumatic valve (12) is spiral-shaped; and the end of the air inlet pipe (22) away from the pneumatic valve (12) is provided with a pneumatic control component (4) capable of inflating the pneumatic valve (12).

2. The pneumatically controlled drain valve according to claim 1, characterized in that: The pneumatic control component (4) includes an air intake rod (41) arranged inside the air intake pipe (22), the air intake rod (41) is spiral-shaped, the end of the air intake rod (41) is fixedly connected to a piston pad (42), the piston pad (42) is located inside the air intake pipe (22), the end of the air intake rod (41) away from the piston pad (42) is fixedly connected to a pneumatic disk (43), the end of the pneumatic disk (43) away from the air intake rod (41) is fixedly connected to a sliding rod (44), the outer periphery of the sliding rod (44) is slidably connected to a sliding cylinder (45), and the end of the sliding cylinder (45) away from the pneumatic disk (43) is fixedly connected to a motor (46).

3. The pneumatically controlled drain valve according to claim 1, characterized in that: The pneumatic valve (12) comprises a connecting rod (13) fixedly connected to the upper end of the drain valve (11); the end of the connecting rod (13) away from the drain valve (11) is located inside the pneumatic valve (12); the end of the connecting rod (13) away from the drain valve (11) is fixedly connected to a sliding disk (14); the upper end of the sliding disk (14) is fixedly connected to a support rod (15); the inner wall of the pneumatic valve (12) is fixedly connected to a spring (16); the spring (16) is located away from the support rod (15) At one end of the sliding disk (14), a telescopic cylinder (17) is fixedly connected to the inner wall of the pneumatic valve (12), the telescopic cylinder (17) is located in the center of the spring (16), a telescopic rod (18) is slidably connected inside the telescopic cylinder (17), and an end of the telescopic rod (18) away from the telescopic cylinder (17) is fixedly connected to an extrusion disk (19), and an end of the spring (16) away from the inner wall of the pneumatic valve (12) is fixedly connected to the extrusion disk (19), and the extrusion disk (19) abuts against the support rod (15).

4. The pneumatically controlled drain valve according to claim 2, characterized in that: The kinetic energy recovery mechanism (3) comprises an air outlet (31) provided on the outer wall of the pneumatic valve (12), the air outlet (31) being located above the air inlet (21), an air outlet pipe (32) being fixedly connected to the outer wall of the pneumatic valve (12), the air outlet pipe (32) being located outside the air outlet (31), an electromagnetic valve (33) being fixedly connected to the inner wall of the air outlet (31), the electromagnetic valve (33) being connected to the motor (46) circuit, the air outlet pipe (32) being connected to the air inlet pipe (22) at one end away from the air outlet (31), and a recovery component (5) for recovering the kinetic energy of the gas being provided at the connection between the air outlet pipe (32) and the air inlet pipe (22).

5. The pneumatically controlled drain valve according to claim 4, characterized in that: The recovery member (5) comprises a recovery rod (51) fixedly connected to the inner wall of the air outlet pipe (32), a torsion spring (52) fixedly connected to the outer wall of the recovery rod (51), and a recovery plate (53) fixedly connected to one end of the torsion spring (52) away from the recovery rod (51). The recovery plate (53) is located outside the recovery rod (51) and is rotatably connected to the recovery rod (51). The recovery plate (53) is located above the air inlet pipe (22).

6. The pneumatically controlled drain valve according to claim 5, characterized in that: A stopper (54) is fixedly connected to the inner wall of the air outlet pipe (32), and the stopper (54) is located at one end of the recovery plate (53) away from the air inlet pipe (22), and the recovery plate (53) abuts against the stopper (54).

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