Program-controlled valve position detector and program-controlled valve

Abstract

The invention discloses a program control valve position detector and a program control valve, and particularly relates to the technical field of valve position detection alarm, the program control valve position detector comprises a valve position indication column, a support, a connecting frame, a reinforcing frame and a valve position switching detection mechanism; wherein the valve position switching detection mechanism comprises a first angle sensor and a main valve position distance sensor, and further comprises a valve position switching recovery detection mechanism and a valve position detection alarm recovery mechanism. Through the valve position switching detection mechanism, the valve position of the main valve position distance sensor is detected, alarm maintenance processing is carried out when faults exist, the main valve position distance sensor can be rapidly replaced by the standby valve position distance sensor for use, and therefore normal valve position detection work is recovered; the valve position detection alarm maintenance processing efficiency is greatly improved, and therefore the problems that after a program control valve position detector breaks down, alarm maintenance processing cannot be conducted in time, normal use of a program control valve is affected, and the valve position detection alarm maintenance processing speed is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve position detection and alarm, and more specifically, to a program-controlled valve position detector and a program-controlled valve. Background Art

[0002] The valve position detector is mainly a device used to indicate the switch status of the valve. It is usually installed above the valve, and the indicator light on its display panel is used to determine whether the valve is open or closed. Because many pipeline systems need to frequently adjust the switch status of the valve in order to allow raw materials, energy and other materials to flow to the specified position. If the valve is not opened and closed normally, it will cause the system to crash in a very short time, causing serious economic losses. The valve position indication alarm detector can timely and accurately feedback the status of the valve, and alarm the abnormal indication valve position after detection.

[0003] In the existing public documents, the patent with patent announcement number CN221300311U discloses a program-controlled valve for water boilers. The device is a program-controlled valve for water boilers. The control module set on the program-controlled valve can adjust the actual ratio of cold water and hot water inside the water boiler, and monitor and adjust the temperature of the water boiler in real time to maximize the accuracy of the temperature of the water boiler. At the same time, the program-controlled valve effectively improves the sealing performance of the program-controlled valve by adding a PEEK sealing sheet and a bracket-type sealing component. However, the technology still has the following problems when used.

[0004] When a programmable valve is in use, in order to know the valve position indication position and thus determine whether the valve switch state meets the actual switch state required, a programmable valve position detector is needed for detection, and an alarm is issued for abnormal valve position indication. However, even if the valve position indication is known to be abnormal, it is difficult to automatically calibrate the cause of the alarm failure of the programmable valve position detector. Therefore, it is difficult to detect the failure based on the programmable valve position detector, and it is difficult to achieve rapid recovery of normal automatic valve position detection. Maintenance personnel are required to arrive at the site to perform valve position detection, maintenance and recovery, which affects the normal valve position indication detection and the normal use of the programmable valve. The valve position detection alarm maintenance processing speed is low, so a programmable valve position detector and a programmable valve are needed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a programmable valve position detector, comprising a valve position indicating column, a bracket and a connecting frame, wherein the bracket is located on one side of the valve position indicating column, the connecting frame is fixed to the top of the bracket, one end of the connecting frame is fixedly connected to a reinforcement frame, and one end of the reinforcement frame is provided with a valve position switching detection mechanism; the valve position switching detection mechanism comprises a first angle sensor fixedly arranged on the top of the reinforcement frame, and a main valve position distance sensor is provided on one side of the first angle sensor, a valve position indicating sleeve block is provided below the main valve position distance sensor, and a sensing end of the first angle sensor is fixedly connected to a detection shaft; a stepping motor is fixedly installed at the bottom end of the detection shaft, and the stepping motor is fixedly connected to the reinforcement frame, the outer wall of the detection shaft is fixedly connected to a sleeve block, and an arc strip is fixedly connected to one side of the sleeve block; the inner wall of the arc strip is fixedly connected to a first valve position calibration block; the upper surface of the reinforcement frame is provided with a valve position switching recovery detection mechanism; the inner wall of the valve position indicating sleeve block is provided with a valve position detection alarm recovery mechanism.

[0006] Preferably, the cross-sectional shape of the arc strip is an arc, and the cross-sectional shape of the first valve position calibration block is a circle. A second valve position calibration block is provided on one side of the first valve position calibration block, and a third valve position calibration block is provided on one side of the second valve position calibration block; the second valve position calibration block and the third valve position calibration block are fixedly connected to the arc strip, and the first valve position calibration block, the second valve position calibration block and the third valve position calibration block are arranged in an arc with equal spacing; the upper surface of the second valve position calibration block is higher than the upper surface of the first valve position calibration block, and the upper surface of the third valve position calibration block is higher than the upper surface of the second valve position calibration block.

[0007] When the present technology is used, when the time for calibrating and detecting the main valve position distance sensor arrives, the stepper motor drives the detection shaft to rotate sixty degrees, the sleeve block drives the arc bar to rotate, the arc bar drives the third valve position calibration block to rotate to the lower surface of the main valve position distance sensor, and the distance of the third valve position calibration block is sensed by the main valve position distance sensor. When the distance sensor is the same as the distance set by the wireless controller, the wireless controller continues to start the detection shaft to drive the sleeve block to rotate one hundred and twenty degrees, the arc bar continues to drive the second valve position calibration block to be located on the lower surface of the main valve position distance sensor, and the distance of the second valve position calibration block is sensed by the main valve position distance sensor. When the distance value sensed by the second valve position calibration block is the same as the distance set by the wireless controller, the stepper motor continues to drive the detection shaft to rotate one hundred and twenty degrees, so that the arc bar drives the first valve position calibration block to be located on the lower surface of the main valve position distance sensor. If the distance value sensed by the main valve position distance sensor is the same as the distance set by the wireless controller, it is known that the calibration detection of the main valve position distance sensor is normal. If the values ​​are different, the main valve position distance sensor is in a damaged state.

[0008] Preferably, the valve position switching recovery detection mechanism includes a switching motor, a rotating rod, a second angle sensor, a sleeve strip and a spare valve position distance sensor; the switching motor is fixed on the upper surface of the reinforcement frame, and the rotating rod is fixed on the output end of the switching motor, the second angle sensor is fixedly installed on the other end of the connecting frame, and the output end of the second angle sensor is fixedly connected to the rotating rod; the sleeve strip is fixed on the outer wall of the rotating rod, and the spare valve position distance sensor is fixed on one end of the sleeve strip, and the main valve position distance sensor is fixedly connected to the other end of the sleeve strip. The center point of the output end of the second angle sensor is on the same vertical line as the center point of the rotating rod, and the cross-sectional shape of the rotating rod is circular. The spare valve position distance sensor and the main valve position distance sensor are symmetrically arranged about the sleeve strip, and the lower surface of the main valve position distance sensor and the lower surface of the spare valve position distance sensor are on the same horizontal plane.

[0009] When the present technology is in use, if the main valve position distance sensor is damaged, the wireless controller will open the buzzer and the alarm light to sound an alarm, the switching motor will drive the rotating rod to rotate one hundred and eighty degrees, and the sleeve will drive the main valve position distance sensor to rotate one hundred and eighty degrees. When the value sensed by the second angle sensor for the rotating rod is one hundred and eighty degrees, the switching motor will be turned off through the wireless controller, and the spare valve position distance sensor can be located on the upper surface of the valve position indicating sleeve block, and the spare valve position distance sensor will detect and indicate the valve position value of the valve position indicating sleeve block.

[0010] Preferably, the valve position detection alarm recovery mechanism comprises a push rod fixedly arranged on the inner wall of the valve position indicating sleeve block; an electric cylinder is fixedly installed on the top of the push rod, a support bar is provided on the other side of the valve position indicating column, and a sleeve seat is fixedly connected to the bottom end of the bracket, the push rod is fixedly connected to the valve position indicating column, the support bar is fixedly connected to the sleeve seat, and the valve position indicating column and the sleeve seat are slidably connected;

[0011] The valve position detection alarm recovery mechanism also includes a concave sleeve block, a sensing shaft, a speed sensor, a support block, a linkage shaft and a friction wheel; the concave sleeve block is fixed to one side of the outer wall of the valve position indicating sleeve block, and the sensing shaft is rotatably connected to the inner wall of the concave sleeve block, the speed sensor is fixed to one end of the sensing shaft, and the linkage shaft is fixed to the other end of the sensing shaft, the support block is fixed between the speed sensor and the concave sleeve block, and the friction wheel is fixedly connected to one end of the linkage shaft, and the friction wheel is used to squeeze the support bar; the valve position detection alarm recovery mechanism also includes a support frame, a screw, a rotating Motor, threaded sleeve, concave bar, wireless controller, buzzer and alarm light; the support frame is fixed on one side of the support bar, and the screw is rotatably connected to the inner wall of the support frame, the rotary motor is fixed on the top of the support frame, the rotary motor is used to drive the screw to rotate, the threaded sleeve is threadedly connected to the outer wall of the screw, and the concave bar is fixedly connected to one side of the threaded sleeve, and the concave bar is fixedly connected to the electric cylinder; the wireless controller is fixed on one side of the support frame, the buzzer and the alarm light are both fixed on the upper surface of the wireless controller, and the alarm light is located on one side of the buzzer. The center point of the sensing shaft and the center point of the linkage shaft are on the same horizontal line, and the vertical cross-section shapes of the sensing shaft and the linkage shaft are both circular. The threaded sleeve is slidably connected to the support frame, and the output end of the rotary motor is fixedly connected to the screw; the support frame is fixedly connected to the sleeve seat.

[0012] When this technology is used, when the main valve position distance sensor detects that the valve position is normal, but the valve position indicator column does not indicate the movement of the valve position, the valve position indicator sleeve keeps the concave sleeve block stationary, the sensing shaft keeps the linkage shaft stationary, and the friction wheel does not squeeze and roll on the support bar. The speed sensor senses the speed value of the sensing shaft as zero, which can detect that the electric cylinder is damaged, and the valve position detection shows that the electric cylinder has a fault. The rotary motor drives the screw to rotate, the threaded sleeve drives the concave bar to move downward, and the concave bar moves the electric cylinder downward. The push rod drives the valve position indicator column to move downward, the concave sleeve drives the sensing shaft to move the linkage shaft downward, the friction wheel squeezes and contacts the support bar, the friction wheel generates friction, and the friction wheel drives the linkage shaft to rotate. The speed sensor can sense the driving speed of the sensing shaft, so that the valve position indicator sleeve can change the distance with the main valve position distance sensor, and can quickly restore the normal use of the valve position indicator column, and timely detect and handle the valve position alarm fault.

[0013] A program-controlled valve comprises a valve housing fixed at the bottom end of a sleeve, a valve plug is fixedly connected to the bottom end of the valve position indicating column, the valve plug is slidably connected to the valve housing, and the valve position indicating column is slidably connected to the valve housing; a valve hole is provided below the valve plug.

[0014] When this technology is in use, the valve position indicator column will move down along the inner wall of the sleeve, and the valve plug will move down along the inner wall of the valve shell to seal the valve hole. The main valve position distance sensor senses the position of the valve position indicator sleeve at this time, and this distance is the closed valve position.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention uses a valve position switching detection mechanism. When the time for calibrating and detecting the main valve position distance sensor is reached, the stepper motor drives the detection shaft to rotate sixty degrees, and the arc bar drives the third valve position calibration block to rotate to the lower surface of the main valve position distance sensor to perform valve position distance calibration detection. The detection shaft is continued to be started to drive the sleeve block to rotate one hundred and twenty degrees. The second valve position calibration block is located on the lower surface of the main valve position distance sensor to perform a second valve position distance calibration detection. The stepper motor continues to drive the detection shaft to rotate one hundred and twenty degrees. The first valve position calibration block is located on the lower surface of the main valve position distance sensor to perform a third valve position distance calibration detection. The valve position sensing of the main valve position distance sensor can be calibrated regularly. When the valve position distance sensed by the main valve position distance sensor is different from the set valve position distance, there is a fault in the valve position detection of the main valve position distance sensor, so that the main valve position distance sensor is alarmed and repaired, and the main valve position distance sensor can be automatically switched, so that the spare valve position distance sensor can quickly restore normal valve position detection, avoid affecting the normal valve position indication detection, avoid affecting the normal use of the programmable valve, and greatly improve the efficiency of valve position detection alarm maintenance processing.

[0017] 2. The present invention utilizes a valve position switching recovery detection mechanism. When the main valve position distance sensor is damaged and an alarm is sounded, the wireless controller starts the switching motor, the rotating rod drives the sleeve strip to rotate 180 degrees, the sleeve strip drives the main valve position distance sensor to rotate 180 degrees, the sleeve strip drives the spare valve position distance sensor to rotate 180 degrees, and when the value sensed by the second angle sensor for the rotating rod is 180 degrees, the wireless controller is used to shut down the switching motor, the spare valve position distance sensor performs valve position value detection and indication on the valve position indication sleeve, and the normal valve position detection is quickly restored, greatly improving the efficiency of valve position detection alarm maintenance processing.

[0018] 3. The present invention uses a valve position detection alarm recovery mechanism. When the main valve position distance sensor detects that the valve position is normal, and the valve position indicating sleeve does not perform valve position action detection, and the speed value of the speed sensor sensing the sensing shaft is zero, it is known that the electric cylinder is in a damaged state, and an alarm maintenance process can be provided. The rotary motor drives the screw to rotate, and the screw drives the threaded sleeve to move downward under the action of the thread transmission force. The concave bar causes the electric cylinder to move downward, and the electric cylinder directly drives the push rod to move downward. The concave sleeve drives the sensing shaft to move the linkage shaft downward, and the friction wheel is squeezed and contacted on the support bar. The friction wheel generates friction, causing the friction wheel to rotate, and the main valve position distance sensor performs distance sensing on the position of the valve position indicating sleeve. In this way, normal valve position detection is quickly restored, and the efficiency of valve position detection alarm maintenance processing is greatly improved.

[0019] According to the mutual influence of the above-mentioned multiple effects, firstly, the third valve position calibration block, the second valve position calibration block and the first valve position calibration block all perform valve position distance calibration detection on the main valve position distance sensor, so as to timely know whether the main valve position distance sensor is damaged. If it is damaged, an alarm prompt will be given immediately. Secondly, the sleeve strip drives the spare valve position distance sensor to rotate 180 degrees, and the spare valve position distance sensor performs valve position numerical detection and indication on the valve position indication sleeve block, and quickly restores the normal valve position detection. Finally, the valve position indication sleeve block does not perform valve position action detection, and knows that the electric cylinder is in a damaged state. The rotating motor drives the screw to rotate, and the main valve position distance sensor performs distance sensing on the position of the valve position indication sleeve block to handle the cause of the alarm fault. In summary, it is possible to timely know whether the main valve position distance sensor is damaged, or whether the electric cylinder is damaged, and automatically switch the main valve position distance sensor, and restore the normal valve position operation indication state of the electric cylinder, so as to quickly restore the normal valve position detection, avoid affecting the normal valve position indication detection, avoid affecting the normal use of the programmable valve, and greatly improve the efficiency of valve position detection alarm maintenance processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of a valve position detector for a program-controlled valve and a main structural view of the program-controlled valve.

[0021] Figure 2 It is a schematic diagram of the partial structure of the connection between the bracket and the connecting frame of the present invention.

[0022] Figure 3 It is a schematic diagram of the partial structure of the valve position switching detection mechanism of the present invention from a top view.

[0023] Figure 4 It is a schematic diagram of a partial structure of the valve position switching recovery detection mechanism of the present invention from a front view.

[0024] Figure 5 The present invention is a schematic diagram of a valve position detector for a program-controlled valve and a bottom-up structure of a program-controlled valve.

[0025] Figure 6 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0026] Figure 7 The present invention is a schematic diagram of a valve position detector for a program-controlled valve and a side view structure of the program-controlled valve.

[0027] Figure 8 It is a schematic diagram of the partial structure of the connection between the electric cylinder and the concave bar of the present invention.

[0028] Fig. 9 The figure is a schematic diagram of the partial structure of the connection between the wireless controller and the buzzer of the present invention from the main view.

[0029] Fig.10 The present invention is a schematic diagram of a valve position detector for a program-controlled valve and a vertical cross-sectional structure of the program-controlled valve.

[0030] The accompanying drawings are marked as follows: 1. valve position indicating column; 2. bracket; 3. connecting frame; 4. reinforcement frame; 5. first angle sensor; 6. main valve position distance sensor; 7. valve position indicating sleeve block; 8. detection shaft; 9. stepping motor; 10. sleeve block; 11. arc strip; 12. first valve position calibration block; 13. second valve position calibration block; 14. third valve position calibration block; 15. switching motor; 16. rotating rod; 17. second angle sensor; 18. sleeve strip; 19 , spare valve position distance sensor; 20, push rod; 21, electric cylinder; 22, support bar; 23, sleeve; 24, concave sleeve block; 25, sensing shaft; 26, speed sensor; 27, support block; 28, linkage shaft; 29, friction wheel; 30, support frame; 31, screw; 32, rotating motor; 33, threaded sleeve block; 34, concave bar; 35, wireless controller; 36, buzzer; 37, warning light; 38, valve plug; 39, valve housing; 40, valve hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] As attached Figure 1-9A programmable valve position detector is shown, which is provided with a valve position switching detection mechanism, a valve position switching recovery detection mechanism, and a valve position detection alarm recovery mechanism. The settings of each mechanism can promptly know that the main valve position distance sensor 6 is damaged, or promptly know that the electric cylinder 21 is damaged, so as to automatically switch the main valve position distance sensor 6 and restore the normal valve position operation indication state of the electric cylinder 21, thereby quickly restoring the normal valve position detection, avoiding affecting the normal valve position indication detection, avoiding affecting the normal use of the programmable valve, and greatly improving the valve position detection alarm maintenance processing efficiency. The specific structural settings of each mechanism are as follows.

[0033] In this technical solution, as shown in the attached Figure 1-3 As shown, a valve position switching detection mechanism is provided at one end of the reinforcement frame 4; the valve position switching detection mechanism includes a first angle sensor 5 fixedly arranged at the top of the reinforcement frame 4, and a main valve position distance sensor 6 is provided on one side of the first angle sensor 5, and a valve position indicating sleeve block 7 is provided below the main valve position distance sensor 6, and a sensing end of the first angle sensor 5 is fixedly connected with a detection shaft 8; a stepper motor 9 is fixedly installed at the bottom end of the detection shaft 8, and the stepper motor 9 is fixedly connected to the reinforcement frame 4, a sleeve block 10 is fixedly connected to the outer wall of the detection shaft 8, and an arc strip 11 is fixedly connected to one side of the sleeve block 10; a first valve position calibration block 12 is fixedly connected to the inner wall of the arc strip 11; a valve position switching recovery detection mechanism is provided on the upper surface of the reinforcement frame 4; a valve position detection alarm recovery mechanism is provided on the inner wall of the valve position indicating sleeve block 7.

[0034] In this technical solution, as shown in the attached Figure 2-3 As shown, a second valve position proofreading block 13 is provided on one side of the first valve position proofreading block 12, and a third valve position proofreading block 14 is provided on one side of the second valve position proofreading block 13; the second valve position proofreading block 13 and the third valve position proofreading block 14 are both fixedly connected to the arc strip 11, and the first valve position proofreading block 12, the second valve position proofreading block 13 and the third valve position proofreading block 14 are arranged equidistantly in a circular arc, and the upper surface of the second valve position proofreading block 13 is higher than the upper surface of the first valve position proofreading block 12, and the upper surface of the third valve position proofreading block 14 is higher than the upper surface of the second valve position proofreading block 13, so that the arc strip 11 drives the third valve position proofreading block 14 to rotate to the lower surface of the main valve position distance sensor 6 for proofreading detection, and then the arc strip 11 continues to drive the second valve position proofreading block 13 to be located at the lower surface of the main valve position distance sensor 6 for proofreading detection.

[0035] In this technical solution, as shown in the attached Figure 2-4As shown, the valve position switching recovery detection mechanism includes a switching motor 15, a rotating rod 16, a second angle sensor 17, a sleeve strip 18 and a spare valve position distance sensor 19; the switching motor 15 is fixed on the upper surface of the reinforcement frame 4, and the rotating rod 16 is fixedly located on the output end of the switching motor 15, the second angle sensor 17 is fixedly installed on the other end of the connecting frame 3, and the output end of the second angle sensor 17 is fixedly connected to the rotating rod 16; the sleeve strip 18 is fixed to the outer wall of the rotating rod 16, and the spare valve position distance sensor 19 is fixedly located at one end of the sleeve strip 18, and the main valve position distance sensor 6 is fixedly connected to the other end of the sleeve strip 18.

[0036] In this technical solution, as shown in the attached Figure 5-9 As shown, the center point of the output end of the second angle sensor 17 is on the same vertical line as the center point of the rotating rod 16, and the cross-sectional shape of the rotating rod 16 is circular. The standby valve position distance sensor 19 and the main valve position distance sensor 6 are symmetrically arranged about the sleeve strip 18, and the lower surface of the main valve position distance sensor 6 and the lower surface of the standby valve position distance sensor 19 are on the same horizontal plane.

[0037] In the present technical solution, the valve position detection alarm recovery mechanism includes a push rod 20 fixedly arranged on the inner wall of the valve position indicating sleeve block 7; an electric cylinder 21 is fixedly installed on the top of the push rod 20, a support bar 22 is provided on the other side of the valve position indicating column 1, and a sleeve seat 23 is fixedly connected to the bottom end of the bracket 2, the push rod 20 is fixedly connected to the valve position indicating column 1, the support bar 22 is fixedly connected to the sleeve seat 23, and the valve position indicating column 1 is slidably connected to the sleeve seat 23; the valve position detection alarm recovery mechanism also includes a concave sleeve block 24, a sensing shaft 25, a speed sensor 26, a support block 27, a linkage shaft 28 and a friction wheel 29.

[0038] The concave sleeve block 24 is fixed on one side of the outer wall of the valve position indicating sleeve block 7, and the sensing shaft 25 is rotatably connected to the inner wall of the concave sleeve block 24, the speed sensor 26 is fixed on one end of the sensing shaft 25, and the linkage shaft 28 is fixed on the other end of the sensing shaft 25, the support block 27 is fixed between the speed sensor 26 and the concave sleeve block 24, and the friction wheel 29 is fixedly connected to one end of the linkage shaft 28, and the friction wheel 29 is used to squeeze the support bar 22.

[0039] The valve position detection alarm recovery mechanism also includes a support frame 30, a screw 31, a rotary motor 32, a threaded sleeve 33, a concave bar 34, a wireless controller 35, a buzzer 36 and an alarm light 37; the support frame 30 is fixedly located on one side of the support bar 22, and the screw 31 is rotatably connected to the inner wall of the support frame 30, the rotary motor 32 is fixedly located at the top of the support frame 30, the rotary motor 32 is used to drive the screw 31 to rotate, the threaded sleeve 33 is threadedly connected to the outer wall of the screw 31, and the concave bar 34 is fixedly connected to one side of the threaded sleeve 33, and the concave bar 34 is fixedly connected to the electric cylinder 21; the wireless controller 35 is fixed on one side of the support frame 30, the buzzer 36 and the alarm light 37 are both fixed on the upper surface of the wireless controller 35, and the alarm light 37 is located on one side of the buzzer 36. The center point of the sensing shaft 25 and the center point of the linkage shaft 28 are on the same horizontal line, and the vertical cross-section shapes of the sensing shaft 25 and the linkage shaft 28 are both circular. The threaded sleeve block 33 is slidably connected to the support frame 30 , the output end of the rotary motor 32 is fixedly connected to the screw rod 31 ; and the support frame 30 is fixedly connected to the sleeve seat 23 .

[0040] The working principle of the program-controlled valve position detector of the present invention is as follows:

[0041] Step 1: During the valve position detection of the program-controlled valve, when the valve is normally closed, the push rod 20 is pushed downward by the electric cylinder 21, and the push rod 20 drives the valve position indicator column 1 to move downward. The valve position indicator column 1 can move downward to the lowest point, so that the push rod 20 can move the valve position indicator sleeve 7 downward, so that the distance between the valve position indicator sleeve 7 and the main valve position distance sensor 6 changes. The distance between the main valve position distance sensor 6 and the valve position indicator sleeve 7 is sensed by the main valve position distance sensor 6. When the distance value sensed by the main valve position distance sensor 6 is the same as the closed valve position value set by the wireless controller 35, the electric cylinder 21 is closed by the wireless controller 35, so that the specific position of the valve position indicator column 1 on the program-controlled valve can be detected, so as to know whether the valve position indicator column 1 moves to the indicated position specified by the valve position, and realize the valve position detection operation.

[0042] Step 2: During the timed valve position switching detection, the time for calibrating and detecting the main valve position distance sensor 6 is set by the wireless controller 35. When the time for calibrating and detecting the main valve position distance sensor 6 is reached, the stepper motor 9 is started by the wireless controller 35, and the stepper motor 9 drives the detection shaft 8 to rotate sixty degrees, so that the detection shaft 8 drives the sleeve block 10 to rotate, and the sleeve block 10 drives the arc bar 11 to rotate, and the bracket 2 supports the connecting frame 3, and the connecting frame 3 supports the reinforcement frame 4, and the reinforcement frame 4 provides a stable support force for the first angle sensor 5 and the stepper motor 9. At the same time, the arc bar 11 drives the third valve position calibration block 14 to rotate to the lower surface of the main valve position distance sensor 6, and the main valve position distance sensor 6 performs distance sensing on the third valve position calibration block 14. When the distance sensor is the same as the distance set by the wireless controller 35, the wireless controller 35 continues to start the detection shaft 8 to drive the sleeve block 10 to rotate one hundred and twenty degrees. When the one hundred and twenty degree value sensed by the first angle sensor 5 is reached.

[0043] The arc strip 11 continues to drive the second valve position calibration block 13 to be located on the lower surface of the main valve position distance sensor 6, and the main valve position distance sensor 6 senses the distance of the second valve position calibration block 13. When the distance value sensed by the second valve position calibration block 13 is the same as the distance set by the wireless controller 35, the stepper motor 9 continues to drive the detection shaft 8 to rotate 120 degrees, so that the arc strip 11 drives the first valve position calibration block 12 to be located on the lower surface of the main valve position distance sensor 6. When the distance value sensed by the main valve position distance sensor 6 is the same as the distance set by the wireless controller 35, it is known that the calibration detection of the main valve position distance sensor 6 is normal. When the detection distance of the main valve position distance sensor 6 is different from that of the wireless controller 35, the main valve position distance sensor 6 is in a damaged state, and the main valve position distance sensor 6 cannot normally detect and indicate the valve position.

[0044] Step 3: During the valve position switching recovery test, when the main valve position distance sensor 6 is damaged, the buzzer 36 and the alarm light 37 are turned on through the wireless controller 35 to give an alarm, and the wireless controller 35 can remotely give an alarm prompt to the backstage personnel. After the backstage maintenance personnel know this, they start the switching motor 15 through the wireless controller 35, and the switching motor 15 drives the rotating rod 16 to rotate 180 degrees. At the same time, the rotating rod 16 drives the sleeve strip 18 to rotate 180 degrees. The sleeve strip 18 drives the main valve position distance sensor 6 to rotate 180 degrees, and the sleeve strip 18 drives the spare valve position distance sensor 19 to rotate 180 degrees, and the connecting frame 3 can support the second angle sensor 17. When the value sensed by the second angle sensor 17 to the rotating rod 16 is one hundred and eighty degrees, the switching motor 15 is turned off through the wireless controller 35, so that the spare valve position distance sensor 19 and the main valve position distance sensor 6 are swapped in position, and the spare valve position distance sensor 19 can be located on the upper surface of the valve position indicating sleeve 7. In this way, the spare valve position distance sensor 19 performs valve position value detection and indication on the valve position indicating sleeve 7, quickly restores normal valve position detection, and quickly handles valve position detection alarm and improves maintenance processing efficiency.

[0045] Step 4, when the valve position detection alarm is restored, when the main valve position distance sensor 6 detects that the valve position is normal, but the valve position indicator column 1 does not indicate the movement of the valve position, and the electric cylinder 21 does not push the push rod 20 downward, the push rod 20 keeps the valve position indicator sleeve 7 immobile, the valve position indicator sleeve 7 keeps the concave sleeve 24 immobile, the concave sleeve 24 keeps the sensing shaft 25 immobile, the sensing shaft 25 keeps the linkage shaft 28 immobile, the linkage shaft 28 does not make the friction wheel 29 move, so the friction wheel 29 does not squeeze and roll on the support bar 22. The speed sensor 26 senses the speed value of the sensing shaft 25 to zero, and the concave sleeve 24 supports the support block 27, and the support block 27 supports the speed sensor 26, so that the electric cylinder 21 can be detected to be damaged, the push rod 20 cannot move, and the push rod 20 cannot make the valve position indicator sleeve 7 move to the designated detection valve position indication position, and the valve position detection shows that the electric cylinder 21 has a fault. The rotating motor 32 is turned on by the wireless controller 35, and the rotating motor 32 drives the screw 31 to rotate. The screw 31 drives the threaded sleeve 33 to move downward under the action of the thread transmission force. At the same time, the threaded sleeve 33 drives the concave bar 34 to move downward, and the concave bar 34 causes the electric cylinder 21 to move downward.

[0046] The electric cylinder 21 directly drives the push rod 20 to move downward, the push rod 20 drives the valve position indicating column 1 to move downward, and the valve position indicating sleeve block 7 drives the concave sleeve block 24 to move downward, the concave sleeve block 24 drives the sensing shaft 25 to make the linkage shaft 28 move downward, and the linkage shaft 28 drives the friction wheel 29 to move downward. Since the friction wheel 29 is squeezed and contacted on the support bar 22, the friction wheel 29 generates friction, and the friction wheel 29 drives the linkage shaft 28 to rotate, and the linkage shaft 28 drives the sensing shaft 25 to rotate, so that the speed sensor 26 can sense the driving speed of the sensing shaft 25, so that the valve position indicating sleeve block 7 can change the distance with the main valve position distance sensor 6, and the main valve position distance sensor 6 is used to sense the distance of the valve position indicating sleeve block 7, so that the normal use of the valve position indicating column 1 can be quickly restored, and the valve position alarm fault can be detected and processed in time.

[0047] As attached Fig.10 The program-controlled valve shown includes a valve housing 39 fixed to the bottom end of a sleeve 23, a valve plug 38 fixedly connected to the bottom end of a valve position indicating column 1, the valve plug 38 and the valve housing 39 are slidably connected, and the valve position indicating column 1 and the valve housing 39 are slidably connected; a valve hole 40 is provided below the valve plug 38.

[0048] The working principle of the program-controlled valve of the present invention is as follows: when the valve position indicating column 1 moves downward, the valve position indicating column 1 will move downward along the inner wall of the sleeve 23, and at the same time, the valve position indicating column 1 drives the valve plug 38 to move downward, and the valve plug 38 moves downward along the inner wall of the valve shell 39. After the valve plug 38 squeezes the valve hole 40, it can seal the valve hole 40, thus forming a closed operation inside the valve shell 39. At the same time, the main valve position distance sensor 6 senses the distance of the position of the valve position indicating sleeve block 7 at this time, and the distance is the closed valve position. In this way, it is possible to know in time whether the valve plug 38 closes and blocks the valve hole 40, and the specific valve position of the valve position indicating column 1 is known, thereby realizing distance control detection.

[0049] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A programmable valve position detector, comprising a valve position indicating column (1), a bracket (2) and a connecting frame (3), wherein the bracket (2) is located on one side of the valve position indicating column (1), the connecting frame (3) is fixed to the top of the bracket (2), and one end of the connecting frame (3) is fixedly connected to a reinforcement frame (4), characterized in that: One end of the reinforcement frame (4) is provided with a valve position switching detection mechanism; The valve position switching detection mechanism comprises a first angle sensor (5) fixedly arranged at the top end of the reinforcement frame (4), and a main valve position distance sensor (6) is provided on one side of the first angle sensor (5), a valve position indicating sleeve (7) is provided below the main valve position distance sensor (6), and a sensing end of the first angle sensor (5) is fixedly connected to a detection rotating shaft (8); A stepper motor (9) is fixedly mounted on the bottom end of the detection shaft (8), and the stepper motor (9) is fixedly connected to the reinforcement frame (4); a sleeve block (10) is fixedly connected to the outer wall of the detection shaft (8), and an arc strip (11) is fixedly connected to one side of the sleeve block (10); A first valve position calibration block (12) is fixedly connected to the inner wall of the arc-shaped strip (11); The upper surface of the reinforcement frame (4) is provided with a valve position switching recovery detection mechanism; The inner wall of the valve position indicating sleeve block (7) is provided with a valve position detection alarm recovery mechanism.

2. The program-controlled valve position detector according to claim 1, characterized in that: The cross-sectional shape of the arc strip (11) is an arc, and the cross-sectional shape of the first valve position calibration block (12) is a circle.

3. The program-controlled valve position detector according to claim 1, characterized in that: A second valve position calibration block (13) is provided on one side of the first valve position calibration block (12), and a third valve position calibration block (14) is provided on one side of the second valve position calibration block (13); The second valve position calibration block (13) and the third valve position calibration block (14) are both fixedly connected to the arc strip (11); the first valve position calibration block (12), the second valve position calibration block (13) and the third valve position calibration block (14) are arranged in an arc-shaped manner with equal spacing; The upper surface of the second valve position calibration block (13) is higher than the upper surface of the first valve position calibration block (12), and the upper surface of the third valve position calibration block (14) is higher than the upper surface of the second valve position calibration block (13).

4. The program-controlled valve position detector according to claim 1, characterized in that: The valve position switching recovery detection mechanism comprises a switching motor (15), a rotating rod (16), a second angle sensor (17), a sleeve strip (18) and a spare valve position distance sensor (19); The switching motor (15) is fixed on the upper surface of the reinforcement frame (4), and the rotating rod (16) is fixedly located on the output end of the switching motor (15); the second angle sensor (17) is fixedly installed on the other end of the connecting frame (3), and the output end of the second angle sensor (17) is fixedly connected to the rotating rod (16); The sleeve strip (18) is fixed to the outer wall of the rotating rod (16), and the standby valve position distance sensor (19) is fixedly located at one end of the sleeve strip (18), and the main valve position distance sensor (6) is fixedly connected to the other end of the sleeve strip (18).

5. The program-controlled valve position detector according to claim 4, characterized in that: The center point of the output end of the second angle sensor (17) and the center point of the rotating rod (16) are located on the same vertical line, and the cross-sectional shape of the rotating rod (16) is circular.

6. The program-controlled valve position detector according to claim 4, characterized in that: The backup valve position distance sensor (19) and the main valve position distance sensor (6) are symmetrically arranged about the sleeve strip (18), and the lower surface of the main valve position distance sensor (6) and the lower surface of the backup valve position distance sensor (19) are in the same horizontal plane.

7. The program-controlled valve position detector according to claim 1, characterized in that: The valve position detection alarm recovery mechanism comprises a push rod (20) fixedly arranged on the inner wall of the valve position indicating sleeve block (7); An electric cylinder (21) is fixedly mounted on the top of the push rod (20), a support bar (22) is provided on the other side of the valve position indicating column (1), and a sleeve (23) is fixedly connected to the bottom end of the bracket (2), the push rod (20) and the valve position indicating column (1) are fixedly connected, the support bar (22) and the sleeve (23) are fixedly connected, and the valve position indicating column (1) and the sleeve (23) are slidably connected; The valve position detection alarm recovery mechanism also includes a concave sleeve block (24), a sensing shaft (25), a speed sensor (26), a support block (27), a linkage shaft (28) and a friction wheel (29); The concave sleeve (24) is fixed to one side of the outer wall of the valve position indicating sleeve (7), and the sensing shaft (25) is rotatably connected to the inner wall of the concave sleeve (24), the speed sensor (26) is fixed to one end of the sensing shaft (25), and the linkage shaft (28) is fixed to the other end of the sensing shaft (25), the support block (27) is fixedly located between the speed sensor (26) and the concave sleeve (24), and the friction wheel (29) is fixedly connected to one end of the linkage shaft (28), and the friction wheel (29) is used to squeeze the support bar (22); The valve position detection alarm recovery mechanism also includes a support frame (30), a screw (31), a rotary motor (32), a threaded sleeve (33), a concave strip (34), a wireless controller (35), a buzzer (36) and an alarm light (37); The support frame (30) is fixedly located on one side of the support bar (22), and the screw rod (31) is rotatably connected to the inner wall of the support frame (30). The rotary motor (32) is fixedly located on the top of the support frame (30), and the rotary motor (32) is used to drive the screw rod (31) to rotate. The threaded sleeve (33) is threadedly connected to the outer wall of the screw rod (31), and the concave strip (34) is fixedly connected to one side of the threaded sleeve (33). The concave strip (34) is fixedly connected to the electric cylinder (21); The wireless controller (35) is fixed on one side of the support frame (30), the buzzer (36) and the alarm light (37) are both fixed on the upper surface of the wireless controller (35), and the alarm light (37) is located on one side of the buzzer (36).

8. The program-controlled valve position detector according to claim 7, characterized in that: The center point of the sensing shaft (25) and the center point of the linkage shaft (28) are on the same horizontal line, and the vertical cross-section shapes of the sensing shaft (25) and the linkage shaft (28) are both circular.

9. The program-controlled valve position detector according to claim 7, characterized in that: The threaded sleeve (33) is slidably connected to the support frame (30), and the output end of the rotary motor (32) is fixedly connected to the screw rod (31); The support frame (30) and the sleeve seat (23) are fixedly connected.

10. A program-controlled valve, using the program-controlled valve position detector according to claim 7, characterized in that: It comprises a valve housing (39) fixed at the bottom end of the sleeve (23), a valve plug (38) is fixedly connected to the bottom end of the valve position indicating column (1), the valve plug (38) and the valve housing (39) are slidably connected, and the valve position indicating column (1) and the valve housing (39) are slidably connected; A valve hole (40) is provided below the valve plug (38).

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