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

Abstract

The present invention provides an electronic gear detection device and method for a pressure regulating station diagnostic instrument. The device comprises a handle, a fixing plate, a detection circuit board, a cam lever, a valve rod connecting shaft, a pressure sensor, and a five-way ball valve. The pressure sensor is connected to the five-way ball valve and used for acquiring current pressure gear information of the five-way ball valve; the cam lever is located on a valve rod connecting shaft of the five-way ball valve; the detection circuit board is fixed below the fixing plate; a limit detection switch is arranged on the detection circuit board; when the handle rotates, the cam lever rotates along with the valve rod connecting shaft, and when reaching a certain outlet gear, the cam lever pushes the limit detection switch so as to trigger a limit detection switch signal of the gear, wherein the signal is transmitted to a main control board of the pressure regulating station diagnostic instrument by means of the detection circuit board.

Description

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

[0002] A five-way ball valve is a mechanical device used for switching gas lines, using the handle's rotation angle to select different gas outlets. Pressure regulating station diagnostic instruments currently use five-way ball valves to switch the output pressure sensor's gear selection to meet the needs of pressure regulating station diagnostic tests with different pressure ranges.

[0003] However, the existing pressure regulating station diagnostic instrument has the following main shortcomings in the selection of pressure sensor gears: 1. The five-way ball valve has a total of four outlet gears. It is difficult to locate when switching the gears with the handle, and sometimes repeated adjustments and confirmations are required to ensure that the switch is in place, which reduces the operating efficiency; 2. The four outlet gears of the five-way ball valve correspond to four pressure sensors. The existing product pressure data detection method is a bus polling strategy. The four pressure sensors are read one by one each time, which makes the program operation inefficient and affects the power consumption to a certain extent.

[0004] In addition, the device determines which pressure sensor is currently in working condition by using a pressure threshold judgment. A pressure threshold is pre-set. Ideally, the pressure data detected by the unconnected pressure sensor is lower than the threshold. The selected pressure sensor, because the air circuit is connected, will detect a pressure higher than the threshold, and the data channel of the pressure sensor will be locked. However, in actual applications, because the internal air 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 it to the non-selected pressure gear. At this time, the internal air circuit of the device needs to be manually emptied before normal use, which has a significant impact on on-site detection efficiency and user experience.

[0005] Summary of the Invention

[0006] In view of the defects in the prior art, the purpose 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 multi-channel digital pressure sensors.

[0007] In order to solve the above problems, the technical solution of the present invention is:

[0008] An electronic gear detection device for a pressure regulating station diagnostic instrument comprises 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 for obtaining 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 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 original sensor data channel detection and switches to the newly selected sensor data channel.

[0009] Preferably, the limit detection switch includes four left-right swing switches, which can be effectively turned on regardless of whether they are triggered from the left to the right or from the right to the left. The four limit detection switches are placed on the detection circuit board at 90 degrees, and their directions correspond to the four outlet positions of the five-way ball valve.

[0010] 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.

[0011] Preferably, a micro socket is further 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.

[0012] Preferably, the detection circuit board is fixed below the fixing plate by detection circuit board fixing screws.

[0013] Preferably, the cam lever is fixed to the valve stem connecting shaft via a cam lever top screw.

[0014] Preferably, the valve stem connecting shaft is fixed to the five-way ball valve via a valve stem connecting shaft top screw.

[0015] 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.

[0016] Preferably, the limit detection switch signal is also used to trigger the device buzzer. When the operator turns the handle to the right position, a buzzer prompt sound will be emitted to facilitate user operation.

[0017] 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:

[0018] When the five-way ball valve handle is switched to a certain gear, 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;

[0019] When the five-way ball valve handle 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;

[0020] 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.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This invention has been electrified based on the original five-way ball valve. The overall structure is compact, the original equipment layout is not changed, and the performance is improved while minimizing the transformation cost.

[0023] 2. The four-way pressure sensor signal selection no longer uses pressure threshold judgment, but instead uses accurate switch signal judgment, eliminating misjudgment caused by pressure fluctuations in the internal pipelines of the equipment, and greatly improving overall reliability;

[0024] 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;

[0025] 4. The present invention does not need to specify the rotation direction of the handle during the switching process, and can be based on the direction of the arrow on the handle. There is also 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

[0026] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0027] FIG1 is 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;

[0028] FIG2 is a perspective exploded view of an electronic gear position detection device for a pressure regulating station diagnostic instrument provided by an embodiment of the present invention;

[0029] FIG3 is a schematic diagram of the structure of a detection circuit board provided in an embodiment of the present invention;

[0030] FIG4 is a flowchart of an electronic gear position detection method for a pressure regulating station diagnostic instrument provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to specific embodiments. The following examples 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 skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0032] Specifically, the present invention provides an electronic gear position detection device for a pressure regulating station diagnostic instrument, as shown in Figures 1 and 2, the electronic gear position detection device for a 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 base 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 base plate 9.

[0033] The five-way ball valve 8 is a mechanical device used for switching air paths, switching between different air path outlets by rotating the handle. Current pressure regulating station diagnostic instruments use a five-way ball valve to switch the gear selection of the outlet pressure sensor, accommodating pressure regulating station diagnostic tests across different pressure ranges. This sensor is a digital pressure sensor 7, threadedly connected to the five-way ball valve 8, enabling accurate acquisition of the valve's current pressure gear information.

[0034] 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.

[0035] As shown in Figure 3, the detection circuit board 4 is coaxial with the five-way ball valve stem connecting shaft 12 and is secured to the underside of the fixing plate 3 by three detection circuit board fixing screws 14. The detection circuit board 4 is an annular ring with a circular hole in the center. It is equipped with a limit detection switch 41 and a micro-socket 42. The limit detection switch 41 is a left-right swing switch that remains active whether triggered from left to right or right to left. Four limit detection switches 41 are evenly spaced at 90 degrees on the detection circuit board 4, their orientations corresponding to the four outlet positions of the five-way ball valve 8. The swing plane of the rocker at the top of the limit detection switch 41 is tangential to the direction of rotation of the cam lever 5, ensuring that the signal is triggered smoothly when the cam lever 5 rotates. The circuitry on the detection circuit board is output to the outside through the micro-socket 42.

[0036] 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 present invention adds electronic gear position detection, the four-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 pressure fluctuations in the internal pipeline 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.

[0037] In this embodiment, when the handle of the five-way ball valve 8 is switched to a certain gear position, the detection switch in the corresponding position is 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 it is switched to another gear position, the detection switch in 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. The direction of the arrow on the handle 2 is sufficient, and there is a buzzer prompt signal when the handle is in place, which greatly improves the channel selection accuracy and reliability of the multi-channel digital pressure sensor.

[0038] Furthermore, the present invention also provides an electronic gear position detection method for a pressure regulating station diagnostic instrument, as shown in FIG4 , the method comprising the following steps:

[0039] S1: When the five-way ball valve handle 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;

[0040] 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 pressure data of the channel on the screen of the pressure regulating station diagnostic instrument.

[0041] S2: When the five-way ball valve handle 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;

[0042] 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.

[0043] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

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 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 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 original sensor data channel detection and switches to the newly selected 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. An electronic gear position detection method for a voltage regulating station diagnostic instrument, 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 sensor data channel; 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 sensor data channel and switches to the newly selected sensor data channel.

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