A threaded connection branch adjustable pressure reducing valve

Abstract

The utility model discloses a kind of adjustable pressure reducing valves of screw connection branch pipe, including pressure reducing valve;The pressure reducing valve is composed of valve body, water inlet pipe and water outlet pipe, water inlet pipe and water outlet pipe are installed in the both ends of valve body, pressure gauge is installed on the upper side of water inlet pipe and water outlet pipe, the upper end of valve body is installed with installation cylinder, the upper end of installation cylinder is installed with mounting bracket, push mechanism is installed in the inside of mounting bracket, push rod is installed in the bottom end of push mechanism, the bottom end of push rod is installed with pressing plate, the pressing plate is inserted into the inside of installation cylinder, spring is installed in the bottom end of pressing plate in the inside of installation cylinder.The utility model controller sends order to motor according to pre-set program, motor drives screw rod to rotate, linear motion is converted into push rod linear motion by screw nut after rotating motion, accurately adjust spring compression degree, realize pressure accurate control.

Description

Technical Field

[0001] This utility model relates to the field of adjustable pressure reducing valve technology, specifically an adjustable pressure reducing valve with threaded connection branch pipe. Background Technology

[0002] The threaded connection adjustable pressure reducing valve for branch pipes is a type of valve used to control the pressure of branch pipes in a pipeline system. It is mainly installed on the branch pipe through a threaded connection and has an adjustable pressure function, which can adjust the higher inlet pressure to a stable outlet pressure.

[0003] Chinese Patent No. 202320279851.9 discloses a piston-type adjustable pressure reducing valve, belonging to the technical field of pressure reducing valves. This piston-type adjustable pressure reducing valve includes a main valve assembly and a pilot valve assembly. The main valve assembly includes a valve body and a valve seat, with the valve seat disposed inside the valve body. The pilot valve assembly includes a pilot valve housing, a valve disc, a spring, an adjusting screw, a knob, a sealing ring, and a support ring. The pilot valve housing is detachably mounted on top of the valve body. The valve disc is movably mounted in a groove at the top of the valve body, and the top of the valve seat is fixedly connected to the bottom of the valve disc. The sealing ring is fixedly fitted onto the outside of the valve disc. In this invention, the support ring inside the annular groove supports the inner side of the annular groove of the outer ring of the sealing ring. When the sealing ring moves up and down, the upper and lower flanges on the outer side are not easily deformed, thus maintaining the sealing effect.

[0004] This utility model requires manual adjustment during use, which is very inconvenient, and frequent adjustments can easily lead to errors. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable pressure reducing valve for threaded connection branch pipes to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a threaded connection branch pipe adjustable pressure reducing valve, comprising a pressure reducing valve; the pressure reducing valve consists of a valve body, an inlet pipe, and an outlet pipe, the inlet pipe and the outlet pipe are installed at both ends of the valve body, pressure gauges are installed on the upper side of the inlet pipe and the outlet pipe, an installation cylinder is installed on the upper end of the valve body, an installation frame is installed on the upper end of the installation cylinder, a pushing mechanism is installed inside the installation frame, a push rod is installed at the bottom end of the pushing mechanism, a pressure plate is installed at the bottom end of the push rod, the pressure plate extends into the installation cylinder, and a spring is installed inside the installation cylinder at the bottom end of the pressure plate.

[0007] Preferably, a triangular plate is provided between the pressure plate and the push rod, and the triangular plate is welded to the bottom end of the push rod and the upper side of the pressure plate.

[0008] Preferably, guide rods are slidably mounted on both sides of the upper end of the push rod, and the guide rods are installed on both sides inside the mounting frame.

[0009] Preferably, the pushing mechanism consists of a lead screw, a lead screw nut, and a motor. The lead screw is rotatably mounted inside the mounting frame, the upper end of the lead screw passes through the mounting frame and is mounted at the bottom end of the motor, the motor is mounted on the upper side of the mounting frame, the lead screw nut is rotatably mounted on the upper side of the lead screw, and the lead screw nut is mounted inside the upper end of the push rod.

[0010] Preferably, a display is mounted on the upper side of the controller, and control buttons are mounted on the upper side of the controller below the display.

[0011] Preferably, a backup power supply is provided on one side of the valve body, and the backup power supply is installed on one side of the valve body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The controller sends commands to the motor according to the preset program. The motor drives the lead screw to rotate. The lead screw nut converts the rotational motion into the linear motion of the push rod, which precisely adjusts the spring compression and achieves precise pressure control. 2. When the push mechanism drives the push rod to move up and down, the guide rods on both sides provide guidance during the movement of the push rod. The guide rods are installed on both sides inside the mounting bracket. The push rod slides on the guide rods to ensure that the push rod can only move along the axial direction of the guide rods, avoiding deviation or shaking, and making the movement of the push rod more stable and precise. 3. After the motor is powered on, it starts to work and drives the lead screw to rotate. Since the lead screw nut and the lead screw are connected by threads and the lead screw nut is installed inside the upper end of the push rod, the rotational motion of the lead screw is converted into the linear motion of the lead screw nut along the lead screw, which in turn drives the push rod to move up and down. By controlling the forward and reverse rotation and the number of rotations of the motor, the moving distance and speed of the push rod can be precisely controlled, so as to achieve precise operation of the pressure plate. 4. Under normal power supply conditions, the backup power supply is in a charging state, storing electrical energy. When the external power supply fails and there is a power outage, the backup power supply will automatically switch and release the stored electrical energy to continue to supply power to various electrical devices on the valve body, such as controllers, displays, motors, etc., to ensure the normal operation of the pressure reducing valve and avoid problems such as pressure loss due to equipment shutdown caused by power outage. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a front view structural diagram of the present utility model; Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0014] In the diagram: 1. Pressure reducing valve; 2. Valve body; 3. Inlet pipe; 4. Outlet pipe; 5. Motor; 6. Mounting bracket; 7. Mounting cylinder; 8. Backup power supply; 9. Controller; 10. Display; 11. Control buttons; 12. Pressure gauge; 13. Pushing mechanism; 14. Lead screw; 15. Lead screw nut; 16. Push rod; 17. Pressure plate; 18. Spring; 19. Guide rod; 20. Triangular plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the present invention, an adjustable pressure reducing valve for threaded connection branch pipes includes a pressure reducing valve 1. The pressure reducing valve 1 consists of a valve body 2, an inlet pipe 3, and an outlet pipe 4. The inlet pipe 3 and the outlet pipe 4 are installed at both ends of the valve body 2. A pressure gauge 12 is installed on the upper side of the inlet pipe 3 and the outlet pipe 4. An installation cylinder 7 is installed on the upper end of the valve body 2. An installation bracket 6 is installed on the upper end of the installation cylinder 7. A pushing mechanism 13 is installed inside the installation bracket 6. A push rod 16 is installed at the bottom end of the pushing mechanism 13. A pressure plate 17 is installed at the bottom end of the push rod 16. The pressure plate 17 extends into the installation cylinder 6. Inside the cylinder 7, a spring 18 is installed at the bottom of the pressure plate 17. A triangular plate 20 is provided between the pressure plate 17 and the push rod 16. The triangular plate 20 is welded to the bottom of the push rod 16 and the upper side of the pressure plate 17. When the push rod 16 moves up and down under the action of the pushing mechanism 13, the force is transmitted to the pressure plate 17 through the triangular plate 20. Since the triangular plate 20 is welded to the bottom of the push rod 16 and the upper side of the pressure plate 17, a stable connection is formed, so that the push rod 16 can stably drive the pressure plate 17 to perform actions, realizing operations such as pressing the lower parts.

[0017] Guide rods 19 are slidably mounted on both sides of the upper end of the push rod 16. The guide rods 19 are installed on both sides inside the mounting frame 6. When the pushing mechanism 13 drives the push rod 16 to move up and down, the guide rods 19 on both sides provide guidance for the push rod 16 during the movement. The guide rods 19 are installed on both sides inside the mounting frame 6, and the push rod 16 slides on the guide rods 19 to ensure that the push rod 16 can only move along the axial direction of the guide rods 19, avoiding deviation or shaking, and making the movement of the push rod 16 more stable and precise.

[0018] The pushing mechanism 13 consists of a lead screw 14, a lead screw nut 15, and a motor 5. The lead screw 14 is rotatably mounted inside the mounting bracket 6, and its upper end passes through the mounting bracket 6 and is mounted on the bottom of the motor 5. The motor 5 is mounted on the upper side of the mounting bracket 6. The lead screw nut 15 is rotatably mounted on the upper side of the lead screw 14 and is mounted inside the upper end of the push rod 16. When the motor 5 is powered on, it starts to work and drives the lead screw 14 to rotate. Since the lead screw nut 15 and the lead screw 14 are threaded together and the lead screw nut 15 is mounted inside the upper end of the push rod 16, the rotational motion of the lead screw 14 is converted into the linear motion of the lead screw nut 15 along the lead screw 14, which in turn drives the push rod 16 to move up and down. By controlling the forward and reverse rotation and the number of rotations of the motor 5, the moving distance and speed of the push rod 16 can be precisely controlled, so as to achieve precise operation of the pressure plate 17.

[0019] A display 10 is mounted on the upper side of the controller 9, and control buttons 11 are mounted on the upper side of the controller 9 below the display 10. The user inputs operation commands to the controller 9 through the control buttons 11. After receiving the commands, the controller 9 processes and analyzes them, and transmits relevant information such as pressure setpoint and equipment operating status to the display 10. The display 10 displays these data to the user in intuitive numerical and graphical form. At the same time, the controller 9 controls various components of the pressure reducing valve 1, such as the motor 5 of the actuating mechanism 13, according to the set program and input commands, so as to realize intelligent management of the pressure reducing valve 1.

[0020] A backup power supply 8 is installed on one side of the valve body 2. Under normal power supply conditions, the backup power supply 8 is in a charging state and stores electrical energy. When the external power supply fails and there is a power outage, the backup power supply 8 automatically switches to release the stored electrical energy to continue to supply power to various electrical devices on the valve body 2, such as the controller 9, the display 10, and the motor 5, to ensure the normal operation of the pressure reducing valve 1 and avoid problems such as pressure loss due to the equipment stopping work caused by power outage.

[0021] The working principle and usage process of this utility model: When the pressure reducing valve 1 is in use, the upstream high-pressure fluid is introduced through the inlet pipe 3. After being reduced in pressure by the valve body 2, it is output through the outlet pipe 4. The pressure gauges 12 at both ends monitor the pressure in real time and provide feedback data. When the pressure in the inlet pipe 3 exceeds the set value, the push mechanism 13 drives the push rod 16 to move down. The pressure plate 17 compresses the spring 18 inside the mounting cylinder 7. The spring 18 generates a reverse elastic force. At the same time, the pressure plate 17 reduces the internal flow space of the valve body 2, increasing the resistance to fluid flow. According to Bernoulli's principle, the fluid velocity decreases, and the pressure decreases accordingly, stabilizing the outlet pressure at the set value. After the pressure decreases, the spring 18 pushes the pressure plate with elastic force. 17. Reset and maintain pressure balance. The operator can preset the target pressure on the controller 9 through the control button 11. The display 10 synchronously displays the real-time and set pressure for easy monitoring and adjustment. When pressure deviation occurs, the controller 9 sends a command to the motor 5 according to the preset program. The motor 5 drives the lead screw 14 to rotate. The lead screw nut 15 converts the rotational motion into the linear motion of the push rod 16, which precisely adjusts the compression degree of the spring 18 to achieve precise pressure control. The backup power supply 8 is normally charged and automatically switches to power supply when power is lost, ensuring the continuous operation of the controller 9, motor 5, etc., avoiding pressure loss and ensuring the stable and accurate operation of the pressure reducing valve 1.

[0022] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A threaded connection adjustable pressure reducing valve for branch pipes, comprising a pressure reducing valve (1) and a controller (9); characterized in that: The pressure reducing valve (1) consists of a valve body (2), an inlet pipe (3), and an outlet pipe (4). The inlet pipe (3) and the outlet pipe (4) are installed at both ends of the valve body (2). A pressure gauge (12) is installed on the upper side of the inlet pipe (3) and the outlet pipe (4). An installation cylinder (7) is installed on the upper end of the valve body (2). An installation bracket (6) is installed on the upper end of the installation cylinder (7). A pushing mechanism (13) is installed inside the installation bracket (6). A push rod (16) is installed at the bottom end of the pushing mechanism (13). A pressure plate (17) is installed at the bottom end of the push rod (16). The pressure plate (17) extends into the installation cylinder (7). A spring (18) is installed inside the installation cylinder (7) at the bottom end of the pressure plate (17). A triangular plate (20) is provided between the pressure plate (17) and the push rod (16). The triangular plate (20) is welded to the bottom end of the push rod (16) and the upper side of the pressure plate (17). Guide rods (19) are slidably installed on both sides of the upper end of the push rod (16). The guide rods (19) are installed on both sides inside the mounting frame (6). The push mechanism (13) consists of a lead screw (14), a lead screw nut (15) and a motor (5). The lead screw (14) is rotatably installed inside the mounting frame (6). The upper end of the lead screw (14) passes through the mounting frame (6) and is installed at the bottom end of the motor (5). The motor (5) is installed on the upper side of the mounting frame (6). The lead screw nut (15) is rotatably installed on the upper side of the lead screw (14). The lead screw nut (15) is installed at the upper end inside the push rod (16). A display (10) is installed on the upper side of the controller (9). A control button (11) is installed on the upper side of the controller (9) below the display (10). A backup power supply (8) is provided on one side of the valve body (2). The backup power supply (8) is installed on one side of the valve body (2).

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