High-pressure-resistant microminiature flow valve

Abstract

The utility model relates to the technical field of flow valves, and discloses a high-pressure-resistant microminiature flow valve which comprises a microminiature flow valve shell, a first ball valve is rotatably arranged in the microminiature flow valve shell, a second ball valve is rotatably connected in the first ball valve, a first water through hole is formed in the outer surface of the first ball valve, and a second water through hole is formed in the outer surface of the second ball valve. Through the tooth number ratio difference of the first gear and the second gear, valve parts matched with the first ball valve and the second ball valve in the micro flow valve shell can be slowly closed, and through subsequent rotation of the second ball valve, the flow in the micro flow valve shell is slowly reduced until the micro flow valve shell is closed, so that when the whole device is closed, the flow rate is reduced, and the service life is prolonged. Therefore, the safety of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flow valves, in particular to a high-pressure resistant miniature flow valve. Background Art

[0002] Miniature flow valves are used to precisely control the flow of liquids or gases, typically in small devices or systems requiring high-precision flow control. These valves are typically small and lightweight, making them suitable for compact devices and complex flow control environments.

[0003] When using existing micro flow valves, due to their small size, in order to extend their service life, they need to have the property of being able to withstand high pressure. Among them, the use of ball valves can have the property of resisting high pressure to a certain extent. However, since the ball valve closes quickly when closing, it is easy to cause water hammer when the water flow is shut off, affecting the safety of the entire valve and reducing its service life.

[0004] Therefore, it is necessary to design a high-pressure resistant micro flow valve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-pressure resistant miniature flow valve for solving the technical problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure resistant micro-flow valve, comprising a micro-flow valve housing, a first ball valve is rotatably arranged inside the micro-flow valve housing, and a second ball valve is rotatably connected inside the first ball valve, and a first water hole is opened on the outer surface of the first ball valve, and two symmetrical second water holes are opened on the outer surface of the second ball valve, and a third water hole that is connected is opened on the outer surface of the first ball valve and the second ball valve, and a fixed box is fixedly connected to the top of the micro-flow valve housing, and a rotating column is fixedly connected to the top of the first ball valve, and a hollow structure is provided inside the rotating column, and a second rotating shaft is fixedly connected to the top of the second ball valve, and the second rotating shaft is rotatably arranged inside the rotating column, and a cross opening is opened on the top of the second rotating shaft, and two symmetrical cylindrical sockets are opened on the top of the second rotating shaft, and a second plug column is slidably inserted into the interior of the two cylindrical sockets, and two symmetrical springs are fixedly connected to the top of the second rotating shaft, and the two The top ends of the second rotating shafts are slidably sleeved with a first connecting column, the bottom ends of the first connecting column are provided with two symmetrical slots, the top ends of the two springs are respectively fixed to the top ends of the inner cavities of the two slots, and the top ends of the two second plug posts are respectively slidably inserted into the interiors of the two slots, and the bottom ends of the first connecting column are fixed with a cross block, the top end of the first connecting column is fixedly inserted with a clamping column, and the top end of the rotating column is provided with four notches distributed in a cross pattern, and the two ends of the clamping column are respectively slidably clamped in the interiors of the two corresponding notches, and the top end of the first connecting column is fixed with a top plate, and the top plate is fixed with two first plug posts, the top end of the rotating column is provided with four insertion holes, and the two first plug posts are respectively slidably inserted into the interiors of the corresponding two insertion holes, a micromotor is fixed to the top of the fixed box, and the output shaft of the micromotor is fixed with the first rotating shaft, and the outer surfaces of the first rotating shaft and the rotating column are respectively fixedly sleeved with a first gear and a second gear, and the first gear and the second gear are meshed.

[0007] Preferably, the first gear and the second gear are both rotatably arranged inside the fixed box, and the gear ratio of the first gear and the second gear is 1:5, and both ends are fixedly connected to limit plates.

[0008] Preferably, the first ball valve is fitted with the inner wall of the micro flow valve housing, and the second ball valve is fitted with the inner wall of the first ball valve, and the two second water holes are located on both sides of the third water hole, and the two second water holes are rotatably arranged inside the first water hole.

[0009] Preferably, the two springs are respectively sleeved on the outer surfaces of the two second plug posts, and the two springs are respectively located on both sides of the cross block.

[0010] Preferably, the bottom of the top plate fits with the top of the rotating column, and the bottom ends of the two second plugging columns are slidably plugged into the two sides of the cross opening of the second rotating shaft respectively.

[0011] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0012] The utility model realizes that the valve components of the first ball valve and the second ball valve in the micro flow valve housing can be slowly closed through the gear ratio difference between the first gear and the second gear. Through the subsequent rotation of the second ball valve, the flow rate in the micro flow valve housing is slowly reduced until it is closed, so that the entire device is not prone to water hammer effect when closing, thereby improving the safety and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of the micro flow valve housing of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure decomposition of the fixing box of the present utility model;

[0016] Figure 4 This is a schematic diagram of the decomposition of the rotating column structure of the present invention;

[0017] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0018] In the figure: 1. Micro flow valve housing; 2. Fixing box; 3. Micro motor; 4. Rotating column; 5. Clamping column; 6. Limiting plate; 7. Top plate; 9. First ball valve; 10. Second ball valve; 11. First water hole; 12. Second water hole; 13. First rotating shaft; 14. First gear; 15. Second gear; 16. First connecting column; 17. First plug column; 18. Slot; 19. Spring; 20. Second plug column; 21. Second rotating shaft; 22. Cross block; 23. Third water hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Obviously, many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] See also Figure 1-5The utility model provides a high-pressure resistant micro flow valve, including a micro flow valve housing 1, a first ball valve 9 is rotatably provided inside the micro flow valve housing 1, and a second ball valve 10 is rotatably connected inside the first ball valve 9, and a first water hole 11 is provided on the outer surface of the first ball valve 9, and two symmetrical second water holes 12 are provided on the outer surface of the second ball valve 10, and a third water hole 23 is provided on the outer surfaces of the first ball valve 9 and the second ball valve 10, which are connected to each other, a fixing box 2 is fixed to the top of the micro flow valve housing 1, and a rotating column 4 is fixed to the top of the first ball valve 9, and a hollow structure is provided inside the rotating column 4, and a second rotating shaft 21 is fixed to the top of the second ball valve 10, and the second The rotating shaft 21 is rotatably arranged inside the rotating column 4, and a cross opening is opened at the top of the second rotating shaft 21, and two symmetrical cylindrical sockets are opened at the top of the second rotating shaft 21, and the second plug posts 20 are slidably inserted inside the two cylindrical sockets, and two symmetrical springs 19 are fixed to the top of the second rotating shaft 21, and the tops of the two second rotating shafts 21 are slidably sleeved with a first connecting column 16, and the bottom of the first connecting column 16 is provided with two symmetrical slots 18, the tops of the two springs 19 are respectively fixed to the tops of the inner cavities of the two slots 18, and the tops of the two second plug posts 20 are respectively slidably inserted into the interiors of the two slots 18, and the bottom of the first connecting column 16 is fixed with Cross block 22, the top of the first connecting column 16 is fixedly plugged with a card column 5, and the top of the rotating column 4 is provided with four cross-distributed notches, and the two ends of the card column 5 are respectively slidably connected to the inside of the two corresponding notches, and the top of the first connecting column 16 is fixedly connected with a top plate 7, and the top plate 7 is fixed with two first plug columns 17, the top of the rotating column 4 is provided with four sockets, and the two first plug columns 17 are respectively slidably plugged into the inside of the corresponding two sockets, the top of the fixed box 2 is fixedly connected with a micro motor 3, and the output shaft of the micro motor 3 is fixedly connected to the first rotating shaft 13, and the outer surfaces of the first rotating shaft 13 and the rotating column 4 are respectively fixedly sleeved with the first gear 14 and the second gear 15, and the first gear The wheel 14 and the second gear 15 are engaged. When the micro flow valve housing 1 is connected to the connecting device, the rotation adjustment of the first ball valve 9 and the second ball valve 10 is used as a valve to control the water flow rate. The closing of the entire valve is carried out by the coordinated rotation of the first ball valve 9 and the second ball valve 10. When the valve is opened, the two second water holes 12 on the second ball valve 10 and the second ball valve 10 on the first ball valve 9 are consistent with the water flow direction. The water flows through the two second ball valves 10 and passes through both sides of the micro flow valve housing 1. When the micro motor 3 is turned on, the clamping column 5 and the notch on the rotating column 4 are clamped together, so that the third water hole 23 connected to the first ball valve 9 and the second ball valve 10 is connected to the water source, thereby reducing the water flow rate. Afterwards, the clamping column 5 is separated from the notch on the rotating column 4.At this time, the two second plug posts 20 slide inside the second rotating shaft 21, causing the two springs 19 to deform, causing the bottom end of the cross block 22 to slide in the square opening of the second rotating shaft 21. The sliding connection between the cross block 22 and the square opening is used to rotate the clamping column 5 to 90 degrees and engage with the other two notches, thereby rotating the third water hole 23 on the second ball valve 10 to connect with the first water hole 11. At this time, the second ball valves 10 on both sides of the third water hole 23 on the first ball valve 9 will be covered by the third water hole 23, thereby closing the entire valve. The first gear 14 and the second gear 15 are decelerated to reduce the closing speed of the entire valve. Then, the first ball valve 9 and the second ball valve 10 are closed successively. The entire process from flow reduction to valve closing is coordinated to avoid the water hammer effect generated when the ball valve is closed, thereby improving the safety and service life of the device.

[0022] In order to allow the valve to close more slowly, the first gear 14 and the second gear 15 are both rotatably arranged inside the fixed box 2, and the gear ratio of the first gear 14 to the second gear 15 is 1:5. Both ends of the 5 are fixedly connected to the limit plate 6.

[0023] In order to improve the sealing of the valve and to utilize the two second water holes 12 to cooperate with flow control, the first ball valve 9 is fitted with the inner wall of the micro flow valve housing 1, and the second ball valve 10 is fitted with the inner wall of the first ball valve 9, and the two second water holes 12 are located on both sides of the third water hole 23, and the two second water holes 12 are both rotatably arranged inside the first water hole 11.

[0024] Furthermore, in order to utilize the elasticity of the two springs 19 to make the sliding connection between the first connecting column 16 and the second plug column 20 smoother, the two springs 19 are respectively sleeved on the outer surfaces of the two second plug columns 20, and the two springs 19 are respectively located on both sides of the cross block 22.

[0025] Furthermore, in order to ensure stable sliding engagement between the clamping column 5 and the notch on the rotating column 4, the bottom of the top plate 7 fits into the top of the rotating column 4, and the bottom ends of the two second plug-in columns 20 are respectively slidably inserted into the two sides of the cross opening of the second rotating shaft 21.

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0028] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A high-pressure resistant micro flow valve, comprising a micro flow valve housing (1), characterized in that: The micro flow valve housing (1) is internally rotatably provided with a first ball valve (9), and the first ball valve (9) is internally rotatably connected to a second ball valve (10), and the outer surface of the first ball valve (9) is provided with a first water hole (11), and the outer surface of the second ball valve (10) is provided with two symmetrical second water holes (12), and the outer surfaces of the first ball valve (9) and the second ball valve (10) are both provided with a third water hole (23) that is connected to each other, the top of the micro flow valve housing (1) is fixedly connected with a fixing box (2), and the top of the first ball valve (9) is fixedly connected with a rotating column (4), and the rotating column ( 4) is provided with a hollow structure inside, and the top of the second ball valve (10) is fixedly connected to a second rotating shaft (21), and the second rotating shaft (21) is rotatably arranged inside the rotating column (4), and the top of the second rotating shaft (21) is provided with a cross opening, and the top of the second rotating shaft (21) is provided with two symmetrical cylindrical sockets, and the insides of the two cylindrical sockets are both slidably plugged with second plug columns (20), and the top of the second rotating shaft (21) is fixedly connected to two symmetrical springs (19), and the tops of the two second rotating shafts (21) are jointly slidably sleeved with a first connecting column (16) The bottom of the first connecting column (16) is provided with two symmetrical slots (18), the top ends of the two springs (19) are respectively fixed to the top of the inner cavity of the two slots (18), and the top ends of the two second plug-in columns (20) are respectively slidably inserted into the inside of the two slots (18), and the bottom of the first connecting column (16) is fixed with a cross block (22), the top end of the first connecting column (16) is fixedly inserted with a clamping column (5), and the top of the rotating column (4) is provided with four notches distributed in a cross pattern, and the two ends of the clamping column (5) are respectively slidably clamped into the inside of the two corresponding notches, and the first connecting column (16) is fixed with a cross block (22), and ... rotating column (4) is fixed with four notches distributed in a cross pattern, and the two ends of the clamping column (5) are respectively slidably clamped into the inside of the two corresponding notches, and the first connecting column (16) is fixed with a cross block (22), and the top end of the first connecting column (16) is fixedly inserted with a clamping column (5), and the rotating column (4) is fixed with four notches distributed in a cross pattern, and the two ends of the clamping column (5) are respectively slidably clamped into the inside of the two corresponding notches, and the first connecting column (16) is fixed with a cross block (22), and the top end of the first connecting column (16) is fixedly inserted with The top of the connecting column (16) is fixedly connected to a top plate (7), and the top plate (7) is fixedly connected to two first plug-in columns (17). The top of the rotating column (4) is provided with four insertion holes, and the two first plug-in columns (17) are respectively slidably inserted into the inside of the corresponding two insertion holes. The top of the fixed box (2) is fixedly connected to a micro motor (3), and the output shaft of the micro motor (3) is fixedly connected to a first rotating shaft (13), and the outer surfaces of the first rotating shaft (13) and the rotating column (4) are respectively fixedly sleeved with a first gear (14) and a second gear (15), and the first gear (14) and the second gear (15) are meshed with each other.

2. A high-pressure resistant miniature flow valve according to claim 1, characterized in that: The first gear (14) and the second gear (15) are both rotatably arranged inside the fixed box (2), and the gear ratio of the first gear (14) and the second gear (15) is 1:

5. Both ends of the (5) are fixedly connected to the limiting plate (6).

3. The high-pressure resistant miniature flow valve according to claim 1, characterized in that: The first ball valve (9) is fitted with the inner wall of the micro flow valve housing (1), and the second ball valve (10) is fitted with the inner wall of the first ball valve (9), and the two second water holes (12) are located on both sides of the third water hole (23), and the two second water holes (12) are both rotatably arranged inside the first water hole (11).

4. The high-pressure resistant miniature flow valve according to claim 1, characterized in that: The two springs (19) are respectively sleeved on the outer surfaces of the two second plug posts (20), and the two springs (19) are respectively located on both sides of the cross block (22).

5. The high-pressure resistant miniature flow valve according to claim 1, characterized in that: The bottom of the top plate (7) fits with the top of the rotating column (4), and the bottom ends of the two second plug-in columns (20) are respectively slidably plugged into the two sides of the cross opening of the second rotating shaft (21).

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