Automatic speed control valve

Abstract

The utility model relates to the technical field of valves, in particular to an automatic speed control valve, which comprises a valve body, a valve handle seat arranged on the valve body and a valve handle arranged in the valve handle seat and in threaded connection with the valve handle seat, a fixed disc is fixedly mounted at the top of the valve body, and a plugging disc is fixedly mounted at the bottom of the valve handle seat. The plugging disc and the fixing disc are fixedly connected through a plurality of fastening bolts, a cross-shaped groove formed in the vertical direction is formed in the valve handle, a left supporting plate and a right supporting plate which are symmetrical to each other are fixedly installed on the annular side face of the fixing disc, a supporting frame is fixedly installed on the two supporting plates, and a servo motor is arranged on the supporting frame. A cross-shaped inserting rod is arranged on an output shaft of the servo motor, the cross-shaped inserting rod is located in the cross-shaped groove and matched with the cross-shaped groove in an inserted mode, and a waterproof sleeve which is arranged on the valve handle seat in a sleeving mode and rotationally connected with the valve handle seat is fixedly installed on the cross-shaped inserting rod. The utility model is convenient for electrically controlling the flow speed operation, saves manpower and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an automatic speed control valve. Background Art

[0002] In the fields of industrial production, chemical industry, petroleum, natural gas, electricity, etc., pipelines need to be arranged to transport fluids. In addition, in order to achieve the effect of controlling the opening and closing of pipelines, corresponding valves are usually installed on the pipelines. Valves are used to control the opening and closing of pipelines and the flow rate of a single flow through the valve. Fluid flow rate control is crucial to the stability and safety of the process.

[0003] Traditional valve adjustment methods often rely on manual operation, which has low adjustment accuracy and slow response speed. It is impossible to add corresponding electric mechanical parts to achieve the effect of automatic flow rate control, and it is impossible to realize electric control operation, which brings inconvenience to users. In view of this, we propose an automatic speed control valve. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic speed control valve to solve the defects mentioned in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A kind of automatic speed control valve comprises a valve body, a valve handle seat arranged on the valve body and a valve handle arranged in the valve handle seat and threadedly connected with the valve handle seat, a fixing disk is fixedly installed on the top of the valve body, a sealing disk is fixedly installed on the bottom of the valve handle seat, the sealing disk and the fixing disk are fixedly connected by a plurality of fastening bolts, a cross groove arranged along the vertical direction is arranged in the valve handle, two mutually symmetrical support plates are fixedly installed on the annular side surface of the fixing disk, a support frame is fixedly installed on the two support plates, a servo motor is arranged on the support frame, a cross rod is arranged on the output shaft of the servo motor, the cross rod is located in the cross groove and plug-fitted with the cross groove, and a waterproof sleeve is fixedly installed on the cross rod, which is sleeved on the valve handle seat and rotatably connected with the valve handle seat.

[0007] Preferably, a center disk is fixedly mounted at the center position of the top rod of the support frame, and the servo motor is fixedly mounted at the center position of the center disk, so that the servo motor can be supported by the center disk.

[0008] Preferably, a water outlet pipe is fixedly installed at the water outlet end of the valve body, a conducting pipe is fixedly installed at the end of the water outlet pipe, and a flow rate sensor is arranged on the conducting pipe, so as to detect the flow rate by using the flow rate sensor.

[0009] Preferably, a threaded joint is fixedly mounted on the conducting pipe, and the flow velocity sensor is threadedly connected to the threaded joint, so as to facilitate the assembly operation of the flow velocity sensor.

[0010] Preferably, a limit plate is fixedly installed at the end of the output shaft of the servo motor, and a support plate is fixedly installed at the top end of the cross rod. The support plate is fixedly installed on the bottom surface of the limit plate by a plurality of fastening bolts, so as to facilitate the support operation of the servo motor using the support plate.

[0011] Preferably, a controller is fixedly mounted on the support frame, and the controller is used to control the operation of the servo motor.

[0012] Preferably, the cross-sections of the cross rod and the cross slot are both cross-shaped, and the size of the cross rod is matched with the size of the cross slot, so that the cross rod can be stably inserted into the cross slot.

[0013] Preferably, the waterproof sleeve is sleeved on the valve handle for waterproof protection operation, and the length of the vertical section rod of the support frame is greater than the length of the valve handle, which facilitates the subsequent opening of the sealing disk to replace the valve handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model ensures that when in use, the servo motor can be used to drive the cross rod to rotate, further drive the valve handle to rotate, and realize the rotation operation of the control valve handle, further achieve the effect of electrically controlling the flow rate, and is convenient to use.

[0016] 2. The utility model provides a flow rate sensor and a controller, which facilitates the use of the flow rate sensor to measure the flow rate, and then uses the controller to control the operation of the servo motor to achieve automatic control operation. In addition, the waterproof sleeve is put on the valve handle to prevent rain from falling on the valve handle and avoid rust on the valve handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0020] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0021] Figure 5This is a system module block diagram of the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Valve body; 10. Fixed plate; 11. Support plate; 12. Support frame; 13. Center plate; 14. Water outlet pipe; 15. Conducting pipe; 16. Threaded joint; 161. Flow rate sensor; 17. Blocking plate; 18. Valve handle seat; 19. Valve handle; 191. Cross groove;

[0024] 2. Servo motor; 20. Limit plate; 21. Cross rod; 22. Support plate; 23. Waterproof cover;

[0025] 3. Controller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: an automatic speed control valve, comprising a valve body 1, a valve handle seat 18 arranged on the valve body 1, and a valve handle 19 arranged in the valve handle seat 18 and threadedly connected with the valve handle seat 18, a fixing plate 10 is fixedly installed on the top of the valve body 1, and a blocking plate 17 is fixedly installed on the bottom of the valve handle seat 18, and the blocking plate 17 is fixedly connected to the fixing plate 10 by a plurality of fastening bolts, so as to facilitate the fixed assembly operation;

[0028] Specifically, a cross groove 191 arranged along the vertical direction is provided in the valve handle 19, and two symmetrical support plates 11 are fixedly installed on the annular side of the fixed disk 10. A support frame 12 is fixedly installed on the two support plates 11, and a servo motor 2 is provided on the support frame 12. A cross rod 21 is provided on the output shaft of the servo motor 2. The cross rod 21 is located in the cross groove 191 and is plugged into the cross groove 191, so that the servo motor 2 can be used to drive the cross rod 21 to rotate, and further drive the valve handle 19 to rotate. As the valve handle 19 rotates, it can drive the valve core at the end of the valve handle 19 to rotate, thereby realizing the flow rate control operation.

[0029] In this embodiment, a waterproof sleeve 23 is fixedly installed on the cross rod 21, which is sleeved on the valve handle seat 18 and rotatably connected to the valve handle seat 18. The waterproof sleeve 23 is sleeved on the valve handle 19 for waterproof protection operation, so that rainwater is not easy to fall on the valve handle 19, thereby avoiding rust on the valve handle 19; the length of the vertical section of the rod body of the support frame 12 is greater than the length of the valve handle 19, which is convenient for the subsequent opening of the sealing disk 17 to replace the valve handle 19.

[0030] Specifically, a center disk 13 is fixedly installed at the center position of the top rod of the support frame 12 , and the servo motor 2 is fixedly installed at the center position of the center disk 13 by a plurality of fastening bolts, so that the servo motor 2 can be supported by the center disk 13 .

[0031] Furthermore, a water outlet pipe 14 is fixedly installed at the water outlet end of the valve body 1, and a conducting pipe 15 is fixedly installed at the end of the water outlet pipe 14. A flow rate sensor 161 is arranged on the conducting pipe 15, so that the flow rate sensor 161 can be used to detect the flow rate; a controller 3 is fixedly installed on the support frame 12, and the controller 3 is used to control the operation of the servo motor 2.

[0032] In addition, a threaded joint 16 is fixedly installed on the conducting pipe 15 , and the flow rate sensor 161 is threadedly connected to the threaded joint 16 , which facilitates the assembly operation of the flow rate sensor 161 .

[0033] It is worth mentioning that a limit plate 20 is fixedly installed at the end of the output shaft of the servo motor 2, and a support plate 22 is fixedly installed at the top of the cross rod 21. The support plate 22 is fixedly installed on the bottom surface of the limit plate 20 by a plurality of fastening bolts, so that the support plate 22 can be used to support the servo motor 2 conveniently.

[0034] It is worth noting that the cross-sections of the cross rod 21 and the cross slot 191 are both cross-shaped, and the size of the cross rod 21 matches the size of the cross slot 191 , so that the cross rod 21 can be stably inserted into the cross slot 191 .

[0035] It is worth noting that the flow rate sensor 161 is used to monitor the flow rate in the conducting tube 15 in real time, and transmit the flow rate signal to the controller 3. The controller 3 compares the received flow rate signal with the preset flow rate value, and drives the valve handle 19 and the valve core at the end of the valve handle 19 to rotate through the servo motor 2, thereby changing the cross-sectional area of ​​the fluid channel, and realizing automatic adjustment of the fluid flow rate; specifically, the controller 3 has a built-in fluid momentum conservation law algorithm, which can calculate the required channel cross-sectional area according to the physical parameters of the fluid such as density, viscosity, etc. and the flow rate signal, and accurately adjust the valve core position through the servo motor 2 to realize accurate control of the flow rate; in actual application, the flow rate in the conducting tube 15 is first monitored in real time by the flow rate sensor 161, and the flow rate signal is transmitted to the controller 3. The controller 3 compares the received flow rate signal with the preset flow rate value, calculates the required channel cross-sectional area, and drives the valve handle 19 and the valve core to move to the corresponding position through the servo motor 2. As the valve core position changes, the cross-sectional area of ​​the fluid channel changes, thereby realizing adjustment of the fluid flow rate.

[0036] Finally, it should be noted that the flow rate sensor 161, controller 3, servo motor 2 and other components involved in the utility model are all universal standard parts or components known to technical personnel in this field, and their structures and principles are all known to technical personnel through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the utility model. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0037] When the automatic speed control valve of the utility model is in use, the flow rate sensor 161 is used to detect the flow rate. When the flow rate is too large or too small, the controller 3 controls the servo motor 2 to work. When the servo motor 2 works and the output shaft thereon rotates forward or reversely, it can drive the cross rod 21 to rotate. Since the cross rod 21 is inserted into the cross groove 191 and the cross rod 21 is slidably connected to the cross groove 191, the rotation of the cross rod 21 can drive the valve handle 19 to rotate. The rotation of the valve handle 19 drives the valve core fixed at the end of the valve handle 19 to rotate. At this time, the cross-sectional area of ​​the conduction part in the conduction tube 15 changes, thereby realizing the flow rate control operation.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic speed control valve, comprising a valve body (1), a valve handle seat (18) disposed on the valve body (1), and a valve handle (19) disposed in the valve handle seat (18) and threadedly connected to the valve handle seat (18), characterized in that: A fixing plate (10) is fixedly mounted on the top of the valve body (1), and a blocking plate (17) is fixedly mounted on the bottom of the valve handle seat (18). The blocking plate (17) and the fixing plate (10) are fixedly connected by a plurality of fastening bolts. A cross groove (191) arranged along the vertical direction is arranged in the valve handle (19). Two symmetrical support plates (11) are fixedly mounted on the annular side surface of the fixing plate (10). A support frame (12) is fixedly mounted on the two support plates (11). A servo motor (2) is arranged on the support frame (12). A cross rod (21) is arranged on the output shaft of the servo motor (2). The cross rod (21) is located in the cross groove (191) and is plugged into and matched with the cross groove (191). A waterproof sleeve (23) is fixedly mounted on the cross rod (21) and is sleeved on the valve handle seat (18) and is rotatably connected to the valve handle seat (18).

2. The automatic speed control valve according to claim 1, characterized in that: A center disk (13) is fixedly mounted at the center position of the top rod body of the support frame (12), and the servo motor (2) is fixedly mounted at the center position of the center disk (13).

3. The automatic speed control valve according to claim 1, characterized in that: A water outlet pipe (14) is fixedly mounted on the water outlet end of the valve body (1), a conducting pipe (15) is fixedly mounted on the end of the water outlet pipe (14), and a flow rate sensor (161) is arranged on the conducting pipe (15).

4. The automatic speed control valve according to claim 3, characterized in that: A threaded joint (16) is fixedly mounted on the conducting pipe (15), and the flow rate sensor (161) is threadably connected to the threaded joint (16).

5. The automatic speed control valve according to claim 1, characterized in that: A limit plate (20) is fixedly mounted on the end of the output shaft of the servo motor (2), a support plate (22) is fixedly mounted on the top end of the cross rod (21), and the support plate (22) is fixedly mounted on the bottom surface of the limit plate (20) by means of a plurality of fastening bolts.

6. The automatic speed control valve according to claim 1, characterized in that: A controller (3) is fixedly mounted on the support frame (12), and the controller (3) is used to control the operation of the servo motor (2).

7. The automatic speed control valve according to claim 1, characterized in that: The cross-sections of the cross-insertion rod (21) and the cross-slot (191) are both cross-shaped, and the size of the cross-insertion rod (21) matches the size of the cross-slot (191).

8. The automatic speed control valve according to claim 1, characterized in that: The waterproof sleeve (23) is sleeved on the valve handle (19) for waterproof protection operation, and the length of the vertical section of the support frame (12) is greater than the length of the valve handle (19).

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