Butterfly valve capable of automatically adjusting water flow pressure

Abstract

The utility model discloses a butterfly valve capable of automatically adjusting water flow pressure, and particularly relates to the technical field of butterfly valves, the butterfly valve comprises a butterfly valve main body, flange plates are fixedly connected to two sides of the butterfly valve main body, a butterfly plate is mounted in the butterfly valve main body, and an automatic adjusting mechanism is arranged at the top of the butterfly valve main body; the automatic adjusting mechanism comprises a fixing column, the fixing column is fixed to the top of the butterfly valve body, and a fixing shell is fixedly connected to the top of the fixing column. By arranging the automatic adjusting mechanism and the pressure sensor, the internal water flow pressure can be comprehensively monitored in real time, the opening and closing degree of the butterfly plate can be accurately adjusted according to the fine change of the water flow pressure, full-automatic water flow pressure adjustment is achieved, and under different working conditions such as water peak or valley and the like, the water flow pressure can be accurately adjusted. Downstream water equipment is prevented from being damaged due to too high pressure or cannot work normally due to too low pressure, the pressure change is quickly responded, the water flow passing area is automatically optimized, and stable operation of the system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and more specifically, to a butterfly valve that automatically regulates water flow pressure. Background Technology

[0002] Butterfly valves play an important role as commonly used flow control and shut-off devices in various systems involving water transport, such as urban water supply systems, water circulation systems in industrial production, and water conservancy projects.

[0003] A search revealed that Chinese patent CN222010959U discloses a butterfly valve. Addressing the issue of difficult disassembly, installation, and reassembly during valve maintenance that was not resolved in the referenced device, the patent solves this problem by having a rotating rod engaged in the shaft grooves of the first and second housings during reassembly, an adjusting component mounted on a support component, a first bolt securing the first and second housings, and a second bolt securing the adjusting component to the support component. A locking block is then engaged to complete the reassembly. During installation, the mounting holes on the mounting plate are aligned with the desired installation position, facilitating disassembly, reassembly, and installation.

[0004] The opening angle of the butterfly plate can only be adjusted during use to regulate the water flow rate, but it cannot automatically and accurately adjust according to real-time changes in water pressure. When the water pressure fluctuates greatly, it may cause downstream water-using equipment to be damaged due to excessive pressure or to malfunction due to excessively low pressure, affecting the reliability and stability of the entire water system. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, this utility model provides a butterfly valve with automatic water flow pressure regulation to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a butterfly valve with automatic water flow pressure regulation, comprising a butterfly valve body, flanges fixedly connected to both sides of the butterfly valve body, a disc installed inside the butterfly valve body, and an automatic adjustment mechanism provided on the top of the butterfly valve body;

[0007] The automatic adjustment mechanism includes a fixed column fixed to the top of the butterfly valve body. A fixed shell is fixedly connected to the top of the fixed column. A microcontroller is fixedly installed on one side of the fixed shell, and a motor is fixedly installed at the bottom of the fixed shell. A first rotating shaft is fixedly connected to the output end of the motor. A second rotating shaft is provided on the top of the first rotating shaft. A first gear is fixedly sleeved on the outside of the second rotating shaft. A second gear meshes with one side of the first gear. A rotating rod is fixedly connected inside the second gear. Pressure sensors are fixedly installed on the top and bottom of the inner wall of the butterfly valve body. A separation mechanism is provided between the first rotating shaft and the second rotating shaft.

[0008] Preferably, a connecting column is fixedly connected to the top of the rotating rod, and both the connecting column and the rotating rod are rotatably connected to the fixed shell. A butterfly valve rotating disc is fixedly connected to the top of the connecting column.

[0009] Preferably, the separation mechanism includes a fixing plate, which is fixed to the bottom of the second rotating shaft. The top surface of the fixing plate has a fixing hole, and the top of the first rotating shaft is fixedly connected to the rotating plate.

[0010] Preferably, a telescopic cylinder is fixedly installed on the top of the rotating plate, and a lifting block is fixedly connected to the output end of the telescopic cylinder, and the lifting block is movably engaged with the fixed locking hole.

[0011] Preferably, the microcontroller is electrically connected to both the motor and the pressure sensor.

[0012] Preferably, the bottom of the rotating rod is fixedly connected to the disc, and both the first rotating shaft and the second rotating shaft are rotatably connected to the fixed shell.

[0013] Preferably, the bottom of the rotating rod passes through the fixed shell, the fixed column, the butterfly valve body and the disc in sequence and extends into the interior of the disc.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting up an automatic adjustment mechanism and using a pressure sensor, the internal water flow pressure can be monitored in real time and comprehensively. The butterfly plate opening degree can be precisely adjusted according to the slight changes in water flow pressure, maintaining a high degree of stability of downstream water flow pressure. This meets the requirements of various application scenarios with stringent pressure stability requirements, effectively improving the operational reliability and stability of the entire water system. It achieves fully automatic water flow pressure regulation, preventing downstream water-using equipment from being damaged due to excessive pressure or unable to work properly due to excessively low pressure under different operating conditions such as peak or off-peak water usage. It can quickly respond to pressure changes, automatically optimize the water flow area, and ensure stable system operation.

[0016] 2. By setting up a separation mechanism, when the electric drive of the butterfly valve fails or maintenance is required, the telescopic cylinder drives the lifting block to disengage from the fixed locking hole, cutting off the power transmission between the motor and the butterfly plate. This provides a safe operating environment for maintenance personnel, avoiding safety accidents caused by misoperation or abnormal motor start-up during maintenance. At the same time, this separation design facilitates the individual inspection and replacement of key components such as the motor, transmission components, and butterfly plate, reducing maintenance difficulty, shortening maintenance time, improving the maintainability and availability of the equipment, and reducing the impact of equipment downtime on production and daily life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a side view of the structure of this utility model.

[0019] Figure 3 This is a side sectional view of the present invention.

[0020] Figure 4 This is a side view of the present invention.

[0021] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] The attached figures are labeled as follows: 1. Butterfly valve body; 2. Flange; 3. Disc; 4. Fixed column; 5. Fixed shell; 6. Microcontroller; 7. Motor; 8. First rotating shaft; 9. Second rotating shaft; 10. First gear; 11. Second gear; 12. Rotating rod; 13. Connecting column; 14. Butterfly valve rotating disc; 15. Fixed plate; 16. Telescopic cylinder; 17. Lifting block; 18. Fixed hole; 19. Pressure sensor; 20. Rotating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As attached Figure 1-5 The butterfly valve shown includes a butterfly valve body 1, flanges 2 fixedly connected to both sides of the butterfly valve body 1, a disc 3 installed inside the butterfly valve body 1, and an automatic adjustment mechanism provided on the top of the butterfly valve body 1.

[0025] The automatic adjustment mechanism includes a fixed column 4, which is fixed to the top of the butterfly valve body 1. A fixed shell 5 is fixedly connected to the top of the fixed column 4. A microcontroller 6 is fixedly installed on one side of the fixed shell 5. A motor 7 is fixedly installed at the bottom of the fixed shell 5. A first rotating shaft 8 is fixedly connected to the output end of the motor 7. A second rotating shaft 9 is set at the top of the first rotating shaft 8. A first gear 10 is fixedly sleeved on the outside of the second rotating shaft 9. A second gear 11 meshes with one side of the first gear 10. A rotating rod 12 is fixedly connected inside the second gear 11. Pressure sensors 19 are fixedly installed at the top and bottom of the inner wall of the butterfly valve body 1. A separation mechanism is provided between the first rotating shaft 8 and the second rotating shaft 9.

[0026] As attached Figure 1-5 As shown, a connecting column 13 is fixedly connected to the top of the rotating rod 12. Both the connecting column 13 and the rotating rod 12 are rotatably connected to the fixed shell 5. A butterfly valve rotating disk 14 is fixedly connected to the top of the connecting column 13. The separation mechanism includes a fixed plate 15, which is fixed to the bottom of the second rotating shaft 9. A fixing hole 18 is provided on the top surface of the fixed plate 15. A rotating plate 20 is fixedly connected to the top of the first rotating shaft 8. A telescopic cylinder 16 is fixedly installed on the top of the rotating plate 20. A lifting block 17 is fixedly connected to the output end of the telescopic cylinder 16. The lifting block 17 is movably engaged with the fixing hole 18, cutting off the power transmission between the motor and the butterfly plate, thus providing a safe operating environment for maintenance personnel.

[0027] As attached Figure 1-4 As shown, the microcontroller 6 is electrically connected to the motor 7 and the pressure sensor 19, which facilitates the transmission of signals from the pressure sensor 19 to the microcontroller 6, thereby enabling the microcontroller 6 to control the motor 7 to start and adjust the opening and closing degree of the disc 3.

[0028] As attached Figure 3 , 5 As shown, the bottom of the rotating rod 12 is fixedly connected to the disc 3, and the first rotating shaft 8 and the second rotating shaft 9 are rotatably connected to the fixed shell 5. The bottom of the rotating rod 12 passes through the fixed shell 5, the fixed column 4, the butterfly valve body 1 and the disc 3 in sequence and extends into the interior of the disc 3, so that the disc 3 can be adjusted in terms of opening and closing degree.

[0029] The working principle of this utility model is as follows: Pressure sensors 19, which are fixedly installed on the top and bottom of the inner wall of the butterfly valve body 1, monitor the water pressure inside the butterfly valve body 1 in real time. When water flows through the butterfly valve, the pressure acts on the pressure sensor 19. The pressure sensor 19 converts the pressure signal it senses into an electrical signal. The pressure sensor 19 transmits the electrical signal to the microcontroller 6, which is fixedly installed on one side of the fixed housing 5. The microcontroller 6, as the core control unit, has a preset pressure value range. It receives the pressure signal from the pressure sensor 19 and compares and analyzes it with the preset pressure value. When the microcontroller 6 determines that there is a deviation between the actual pressure and the preset pressure and the opening of the butterfly plate 3 needs to be adjusted, it sends a control command to the motor 7, which is fixedly installed at the bottom of the fixed housing 5.

[0030] After receiving the command, motor 7 starts, and its output end drives the first rotating shaft 8 to rotate. The second rotating shaft 9, which is set on the top of the first rotating shaft 8, has a first gear 10 fixedly sleeved on its outer side. When the first rotating shaft 8 rotates, if the separation mechanism is in the connected state, that is, the lifting block 17 is engaged in the fixed hole 18, the first rotating shaft 8 drives the rotating plate 20 to rotate, which in turn drives the fixed plate 15 and the second rotating shaft 9 to rotate through the telescopic cylinder 16 and the lifting block 17. The rotation of the second rotating shaft 9 drives the first gear 10 to rotate. The second gear 11, which is meshed on one side of the first gear 10, rotates under the drive of the first gear 10. The rotating rod 12 is fixedly connected inside the second gear 11. As the rotating rod 12 rotates, the connecting column 13 fixedly connected to the top of the rotating rod 12 rotates together with the rotating rod 12, and the butterfly valve rotating disc 14 fixedly connected to the top of the connecting column 13 also rotates synchronously. Since the bottom of the rotating rod 12 is fixedly connected to the disc 3, the rotation of the rotating rod 12 ultimately drives the disc 3 to rotate around its central axis, thereby adjusting the opening of the butterfly valve and thus adjusting the water flow pressure. When the actual pressure is higher than the preset pressure, the microcontroller 6 controls the motor 7 to rotate forward, which increases the opening of the disc 3, increases the water flow area, and reduces the pressure. When the actual pressure is lower than the preset pressure, the microcontroller 6 controls the motor 7 to rotate in reverse, which decreases the opening of the disc 3, decreases the water flow area, and increases the pressure.

[0031] When the electric drive of the butterfly valve fails or during maintenance, the telescopic cylinder 16 is activated. The output end of the telescopic cylinder 16 drives the lifting block 17 to move upward, causing it to disengage from the fixed locking hole 18. At this time, the first rotating shaft 8 and the second rotating shaft 9 are separated, and the rotation of the first rotating shaft 8 is no longer transmitted to the second rotating shaft 9, thereby cutting off the power transmission between the motor 7 and the butterfly plate 3, making it convenient to perform related operations.

[0032] In conclusion, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A butterfly valve with automatic water flow pressure regulation, comprising a butterfly valve body (1), characterized in that: The butterfly valve body (1) is fixedly connected to flanges (2) on both sides, a disc (3) is installed inside the butterfly valve body (1), and an automatic adjustment mechanism is provided on the top of the butterfly valve body (1). The automatic adjustment mechanism includes a fixed column (4), which is fixed to the top of the butterfly valve body (1). A fixed shell (5) is fixedly connected to the top of the fixed column (4). A microcontroller (6) is fixedly installed on one side of the fixed shell (5). A motor (7) is fixedly installed at the bottom of the fixed shell (5). A first rotating shaft (8) is fixedly connected to the output end of the motor (7). A second rotating shaft (9) is provided on the top of the first rotating shaft (8). A first gear (10) is fixedly sleeved on the outside of the second rotating shaft (9). A second gear (11) meshes on one side of the first gear (10). A rotating rod (12) is fixedly connected inside the second gear (11). Pressure sensors (19) are fixedly installed on the top and bottom of the inner wall of the butterfly valve body (1). A separation mechanism is provided between the first rotating shaft (8) and the second rotating shaft (9).

2. The automatic water flow pressure regulating butterfly valve according to claim 1, wherein: The top of the rotating rod (12) is fixedly connected to a connecting column (13), and both the connecting column (13) and the rotating rod (12) are rotatably connected to the fixed shell (5). The top of the connecting column (13) is fixedly connected to a butterfly valve rotating disc (14).

3. The automatic water flow pressure regulating butterfly valve according to claim 2, wherein: The separation mechanism includes a fixing plate (15), which is fixed to the bottom of the second rotating shaft (9). The top surface of the fixing plate (15) is provided with a fixing hole (18), and the top of the first rotating shaft (8) is fixedly connected to a rotating plate (20).

4. The automatic water flow pressure regulating butterfly valve according to claim 3, wherein: A telescopic cylinder (16) is fixedly installed on the top of the rotating plate (20). A lifting block (17) is fixedly connected to the output end of the telescopic cylinder (16). The lifting block (17) is movably engaged with the fixed locking hole (18).

5. The automatic water flow pressure regulating butterfly valve according to claim 1, wherein: The microcontroller (6) is electrically connected to the motor (7) and the pressure sensor (19).

6. The automatic water flow pressure regulating butterfly valve according to claim 1, wherein: The bottom of the rotating rod (12) is fixedly connected to the disc (3), and the first rotating shaft (8) and the second rotating shaft (9) are rotatably connected to the fixed shell (5).

7. The automatic water flow pressure regulating butterfly valve according to claim 1, wherein: The bottom of the rotating rod (12) passes through the fixed shell (5), the fixed column (4), the butterfly valve body (1) and the disc (3) in sequence and extends into the interior of the disc (3).

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