Electronic gear position detection device and method for pressure regulating station diagnostic instrument

Abstract

The present invention provides an electronic gear position detection device and method for a pressure regulating station diagnostic instrument. The device includes a handle, a fixed plate, a detection circuit board, a cam lever, a valve stem connecting shaft, a pressure sensor and a five-way ball valve. The pressure sensor is connected to the five-way ball valve and is used to obtain the current pressure gear position information of the five-way ball valve. The cam lever is located on the valve stem connecting shaft of the five-way ball valve. The detection circuit board is fixed under the fixed plate. A limit detection switch is provided on the detection circuit board. When the handle is rotated, the cam lever rotates with the valve stem connecting shaft. When a certain outlet gear position is reached, the cam lever pushes the limit detection switch, thereby triggering the limit detection switch signal of the gear position. The signal is transmitted to the main control board of the pressure regulating station diagnostic instrument through the detection circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of gas pressure regulation detection, and in particular to an electronic gear position detection device and method for a pressure regulation station diagnostic instrument. Background Art

[0002] The five-way ball valve is a mechanical device used for gas line switching, which switches different gas line outlets by rotating the handle angle. The pressure regulating station diagnostic instrument currently uses a five-way ball valve to switch the gear selection of the outlet pressure sensor to meet the pressure regulating station diagnostic test with different pressure ranges.

[0003] However, the existing pressure regulating station diagnostic instrument has the following main deficiencies in the selection of pressure sensor gear positions: 1. The five-way ball valve has a total of 4 outlet gear positions. It is not easy to locate when switching the gear position with the handle. Sometimes repeated adjustments and confirmations are required to ensure that the switch is in place, which has low operating efficiency; 2. The 4 outlet gear positions of the five-way ball valve correspond to 4-way pressure sensors. The existing product pressure data detection method is a bus polling strategy. The 4-way pressure sensors are read one by one each time, the program operation efficiency is not high, and it will affect a certain power consumption.

[0004] In addition, the device determines the pressure sensor that is currently in working state by pressure threshold judgment. A pressure threshold is set in advance. Ideally, the pressure data detected by the unconnected pressure sensor is lower than the threshold. The selected pressure sensor has a connected gas circuit, and the pressure detected will be higher than the threshold. The data channel of the pressure sensor can be locked. However, in actual applications, because the internal gas circuit of the device is closed, the pressure value detected by the unconnected pressure sensor will often exceed the set threshold after being placed and used again. The program in the device will make an error judgment and lock to the non-selected pressure gear. At this time, the internal gas circuit of the device needs to be manually emptied before it can be used normally, which has a great impact on the efficiency of on-site detection and the user experience. Summary of the invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide an electronic gear position detection device and method for a pressure regulating station diagnostic instrument, which can improve the channel selection accuracy and reliability of a multi-channel digital pressure sensor.

[0006] To solve the above problems, the technical solution of the present invention is:

[0007] An electronic gear detection device for a pressure regulating station diagnostic instrument comprises a handle, a fixing plate, a detection circuit board, a cam lever, a valve stem connecting shaft, a pressure sensor and a five-way ball valve. The pressure sensor is connected to the five-way ball valve and is used to obtain the current pressure gear information of the five-way ball valve. The cam lever is located on the valve stem connecting shaft of the five-way ball valve. The detection circuit board is fixed below the fixing plate. A limit detection switch is provided on the detection circuit board. When the handle is rotated, the cam lever rotates along with the valve stem connecting shaft. When a certain outlet gear is reached, the cam lever pushes the limit detection switch, thereby triggering the limit detection switch signal of the gear. The signal is transmitted to the main control board of the pressure regulating station diagnostic instrument through the detection circuit board. The main control board locks the sensor data channel. When switching to other gears, the detection switch at the original position is restored, and the detection switch corresponding to the new gear is triggered. After receiving the signal, the main control board releases the detection of the original sensor data channel and switches to the newly selected sensor data channel.

[0008] Preferably, the limit detection switch includes four left-right swing switches, which can be effectively turned on regardless of being triggered from the left to the right or from the right to the left. The four limit detection switches are evenly distributed at 90 degrees on the detection circuit board, and their directions correspond to the four outlet positions of the five-way ball valve.

[0009] Preferably, the plane in which the rocker of the limit detection switch swings is tangent to the direction in which the cam lever rotates, ensuring that the signal can be triggered smoothly when the cam lever rotates.

[0010] Preferably, a micro socket is also provided on the detection circuit board, and the circuit on the detection circuit board is output to the main control board through the micro socket.

[0011] Preferably, the detection circuit board is fixed below the fixing plate by detection circuit board fixing screws.

[0012] Preferably, the cam lever is fixed to the valve stem connecting shaft by a cam lever top screw.

[0013] Preferably, the valve stem connecting shaft is fixed to the five-way ball valve by a valve stem connecting shaft top screw.

[0014] Preferably, the device further comprises a five-way ball valve base and a bottom plate, and the five-way ball valve base is fixed to the bottom plate by five-way ball valve base fixing screws.

[0015] Preferably, the limit detection switch signal is also used to trigger a buzzer of the device. When the operator moves the handle to the right position, a buzzer prompt sound is emitted to facilitate user operation.

[0016] Furthermore, the present invention also provides an electronic gear position detection method for a pressure regulating station diagnostic instrument, the method comprising the following steps:

[0017] When the handle of the five-way ball valve is switched to a certain gear, the limit detection switch at the corresponding position is triggered, and the switch signal is transmitted to the main control board through the detection circuit board, and the main control board locks the sensor data channel;

[0018] When the handle of the five-way ball valve is switched to another gear position, the limit detection switch at the original position is restored, the limit detection switch corresponding to the new gear position is triggered, and the switch signal is transmitted to the main control board through the detection circuit board;

[0019] After receiving the switch signal, the main control board releases the detection of the original sensor data channel and switches to the newly selected sensor data channel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention has carried out an electrification transformation on the basis of the original five-way ball valve, with a compact overall structure, without changing the original equipment layout, improving performance while minimizing the transformation cost;

[0022] 2. The four-way pressure sensor signal selection no longer uses the pressure threshold judgment, but uses the exact switch signal judgment instead, which eliminates the misjudgment caused by the pressure fluctuation of the internal pipeline of the equipment, and greatly improves the overall reliability;

[0023] 3. After using the switch signal to directly determine the working position of the pressure sensor, the firmware no longer needs to poll each pressure sensor signal, and can directly lock the working pressure sensor signal, reducing the redundant waste of CPU resources and achieving lower power consumption;

[0024] 4. In the present invention, there is no need to specify the rotation direction of the handle during the switching process. The direction of the arrow on the handle can be used as the standard, and there is a buzzer prompt signal when the position is in place, which greatly improves the channel selection accuracy and reliability of the multi-channel digital pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 A three-dimensional structural diagram of an electronic gear position detection device for a pressure regulating station diagnostic instrument provided by an embodiment of the present invention;

[0027] Figure 2 A three-dimensional exploded view of an electronic gear position detection device for a pressure regulating station diagnostic instrument provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of a detection circuit board provided in an embodiment of the present invention;

[0029] Figure 4 A flowchart of an electronic gear position detection method for a voltage regulating station diagnostic instrument provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] Specifically, the present invention provides an electronic gear position detection device for a voltage regulating station diagnostic instrument, such as Figure 1 and Figure 2 As shown, the electronic gear position detection device for the pressure regulating station diagnostic instrument includes a handle 2, a handle fixing screw 1, a fixing plate 3, a detection circuit board 4, a detection circuit board fixing screw 14, a cam lever 5, a cam lever top screw 13, a valve stem connecting shaft 12, a valve stem connecting shaft top screw 6, a pressure sensor 7, a five-way ball valve 8, a bottom plate 9, a five-way ball valve base 11, and a five-way ball valve base fixing screw 10 for fixing the five-way ball valve base 11 on the bottom plate 9.

[0032] The five-way ball valve 8 is a mechanical device for switching the gas circuit, which switches different gas circuit outlets by rotating the handle angle. The current pressure regulating station diagnostic instrument uses a five-way ball valve to switch the gear selection of the outlet pressure sensor to meet the pressure regulating station diagnostic test of different pressure ranges. The sensor is a digital pressure sensor 7, which is threadedly connected to the five-way ball valve 8, and can accurately obtain the current pressure gear information of the five-way ball valve.

[0033] The electronic gear position detection device for the pressure regulating station diagnostic instrument of the present invention mainly adds components such as a cam lever 5 and a detection circuit board 4 on the basis of the original five-way ball valve. The cam lever 5 is located on the valve stem connecting shaft 12 of the five-way ball valve and is locked by two cam lever top screws 13. The top end of the cam lever 5 points to the same direction as the default outlet passage.

[0034] like Figure 3As shown, the detection circuit board 4 is coaxial with the valve stem connecting shaft 12 of the five-way ball valve, and is fixed to the bottom of the fixing plate 3 by three detection circuit board fixing screws 14. The detection circuit board 4 is a circular ring with a circular hole in the middle. The detection circuit board 4 is provided with a limit detection switch 41 and a micro socket 42. The limit detection switch 41 is a left-right swing type switch, which can be effectively turned on whether it is triggered from the left to the right or from the right to the left. The four limit detection switches 41 are evenly distributed at 90 degrees on the detection circuit board 4, and the directions correspond to the four outlet gears of the five-way ball valve 8. The plane where the rocker at the top of the limit detection switch 41 swings is tangent to the direction of rotation of the cam lever 5, ensuring that the signal can be triggered smoothly when the cam lever 5 rotates; the circuit on the detection circuit board is output to the outside through the micro socket 42.

[0035] When the handle 2 rotates, the cam lever 5 rotates along with the valve stem connecting shaft 12. When a certain outlet gear position is reached, the front end of the cam lever 5 pushes the rocker of the limit detection switch 41, thereby triggering the switch signal of the gear position. After the electronic gear position detection is added to the present invention, the 4-way pressure sensor signal no longer needs to be polled each time. The pressure sensor 7 of the working path can be directly locked according to the output switch signal. If the gear position remains unchanged, there will be no problems such as misjudgment of the pressure sensor gear position due to the internal pipeline pressure fluctuation of the equipment, and the overall reliability is greatly improved. At the same time, the limit detection switch signal is also used to trigger the equipment buzzer. When the operator turns the handle to the right position, a 1-second buzzer prompt sound will be emitted, which is convenient for user operation.

[0036] In this embodiment, when the handle of the five-way ball valve 8 is switched to a certain gear position, the detection switch at the corresponding position will be triggered. The signal is transmitted to the main control board of the pressure regulating station diagnostic instrument through the detection circuit board. The main control board locks the sensor data channel and displays the pressure data of the channel on the screen of the pressure regulating station diagnostic instrument. When switching to other gear positions, the detection switch at the original position is restored, and the detection switch corresponding to the new gear position is triggered. After receiving the signal, the main control board releases the detection of the original sensor data channel and switches to the newly selected sensor data channel. During the switching process of the handle 2, there is no need to specify the rotation direction of the handle 2. It can be based on the direction of the arrow of the handle 2, and there is a buzzer prompt signal when it is in place, which greatly improves the channel selection accuracy and reliability of the multi-channel digital pressure sensor.

[0037] Furthermore, the present invention also provides an electronic gear position detection method for a voltage regulating station diagnostic instrument, such as Figure 4 As shown, the method comprises the following steps:

[0038] S1: When the handle of the five-way ball valve is switched to a certain position, the limit detection switch at the corresponding position is triggered. The switch signal is transmitted to the main control board through the detection circuit board, and the main control board locks the sensor data channel;

[0039] Specifically, when the handle of the five-way ball valve is switched to a certain position, the detection switch at the corresponding position will be triggered. The signal will be transmitted to the main control board through the detection circuit board. The main control board will immediately lock the sensor data channel and display the channel pressure data on the screen of the pressure regulating station diagnostic instrument.

[0040] S2: When the handle of the five-way ball valve is switched to another gear position, the limit detection switch at the original position is restored, the limit detection switch corresponding to the new gear position is triggered, and the switch signal is transmitted to the main control board through the detection circuit board;

[0041] S3: After receiving the switch signal, the main control board cancels the detection of the original sensor data channel and switches to the newly selected sensor data channel.

[0042] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An electronic gear position detection device for a voltage regulating station diagnostic instrument, characterized in that: The device includes a handle, a fixed plate, a detection circuit board, a cam lever, a valve stem connecting shaft, a pressure sensor and a five-way ball valve. The pressure sensor is connected to the five-way ball valve and is used to obtain the current pressure gear information of the five-way ball valve. The cam lever is located on the valve stem connecting shaft of the five-way ball valve. The detection circuit board is fixed below the fixed plate. A limit detection switch is provided on the detection circuit board. When the handle is rotated, the cam lever rotates along with the valve stem connecting shaft. When a certain outlet gear is reached, the cam lever pushes the limit detection switch, thereby triggering the limit detection switch signal of the gear. The signal is transmitted to the main control board of the pressure regulating station diagnostic instrument through the detection circuit board. The main control board locks the pressure sensor data channel. When switching to other gears, the detection switch in the original position is restored, and the detection switch corresponding to the new gear is triggered. After receiving the signal, the main control board releases the detection of the original pressure sensor data channel and switches to the newly selected pressure sensor data channel.

2. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The limit detection switch includes four left-right swing switches, which can be effectively turned on regardless of being triggered from the left to the right or from the right to the left. The four limit detection switches are evenly distributed at 90 degrees on the detection circuit board, and their directions correspond to the four outlet gears of the five-way ball valve.

3. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 2, characterized in that: The plane where the rocker of the limit detection switch swings is tangent to the direction in which the cam lever rotates, ensuring that the signal can be triggered smoothly when the cam lever rotates.

4. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The detection circuit board is also provided with a micro socket, and the circuit on the detection circuit board is output to the main control board through the micro socket.

5. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The detection circuit board is fixed below the fixing plate by detection circuit board fixing screws.

6. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The cam lever is fixed on the valve stem connecting shaft through a cam lever top screw.

7. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The valve stem connecting shaft is fixed on the five-way ball valve through a valve stem connecting shaft top screw.

8. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The device also includes a five-way ball valve base and a bottom plate, and the five-way ball valve base is fixed to the bottom plate by five-way ball valve base fixing screws.

9. The electronic gear position detection device for a voltage regulating station diagnostic instrument according to claim 1, characterized in that: The limit detection switch signal is also used to trigger the device buzzer. When the operator moves the handle into place, a buzzer prompt sound will be emitted to facilitate user operation.

10. A detection method for an electronic gear position detection device used in a voltage regulating station diagnostic instrument according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: When the handle of the five-way ball valve is switched to a certain gear, the limit detection switch at the corresponding position is triggered, and the switch signal is transmitted to the main control board through the detection circuit board, and the main control board locks the data channel of the pressure sensor; When the handle of the five-way ball valve is switched to another gear position, the limit detection switch at the original position is restored, the limit detection switch corresponding to the new gear position is triggered, and the switch signal is transmitted to the main control board through the detection circuit board; After receiving the switch signal, the main control board releases the detection of the original pressure sensor data channel and switches to the newly selected pressure sensor data channel.

Images