Flange type pressure gauge calibration device

Abstract

The utility model discloses a flange type pressure gauge calibration device which comprises a shell, a power supply control system is installed on the shell, the power supply control system is respectively connected with an air source control system and a flange type pressure gauge clamping mechanism through wires, and the air source control system is connected with the flange type pressure gauge clamping mechanism through a pipeline. The air source control system and the flange type pressure gauge clamping mechanism are both installed on the shell. The flange type pressure gauge calibration device solves the problems that an existing calibration device is low in calibration precision and low in efficiency due to the fact that batch calibration cannot be carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure measurement technical field, and specifically relates to flange type pressure gauge calibration device. BACKGROUND

[0002] Flange type pressure gauges are widely used in industrial production and are used for monitoring various pressure parameters. Since their accuracy directly affects production safety and product quality, regular calibration is particularly important.

[0003] Conventional flange type pressure gauge calibration requires the customization of special, same-specification trays. The trays and the pressure gauges under test are sealed and fixed before pressure calibration testing can be performed. However, in actual work, it is often necessary to complete the calibration of batches of flange type pressure gauges in a short period of time, and the calibration device still needs to be manually operated to adjust the pressure of the mechanical valve, resulting in low precision. Such conventional calibration devices are time-consuming and labor-intensive and cannot meet the needs of large-scale rapid identification. Therefore, more efficient and more accurate calibration devices are needed, which can not only improve work efficiency but also ensure production safety and reduce losses caused by instrument errors. SUMMARY

[0004] The utility model aims at providing flange type pressure gauge calibration device, solved the existing calibration device calibration precision is low, cannot carry out batch calibration and leads to the problem of low efficiency.

[0005] The utility model adopts the technical scheme, flange type pressure gauge calibration device, including the shell, the shell is installed with power control system, power control system is connected with gas source control system and flange type pressure gauge clamping mechanism through wire respectively, gas source control system is connected with flange type pressure gauge clamping mechanism through pipeline, and gas source control system and flange type pressure gauge clamping mechanism are installed on the shell.

[0006] The utility model has the characteristics that:

[0007] The power control system includes a power interface, which is provided on the shell. The power interface is connected with a 24V voltage converter and a locked-rotor current control circuit board in sequence through wires. The locked-rotor current control circuit board is connected with a touch display screen through wires. The touch display screen is provided on the shell. The locked-rotor current control circuit board is connected with the gas source control system and the flange type pressure gauge clamping mechanism through wires respectively.

[0008] A device operation button is provided on the wire between the power interface and the locked-rotor current control circuit board. The device operation button is provided on the shell.

[0009] A clamping mechanism operation button is provided on the wire between the locked-rotor current control circuit board and the flange type pressure gauge clamping mechanism. The clamping mechanism operation button is provided on the shell.

[0010] The air source control system includes an electric air pump, which is connected to the locked-rotor current control circuit board through a wire, and the electric air pump is connected to an air storage tank through a pipeline, a one-way valve is provided on the pipeline between the electric air pump and the air storage tank, and a pressure switch is provided on the pipeline between the air storage tank and the one-way valve, and the pressure switch is connected to the locked-rotor current control circuit board through a wire, and the pipeline between the one-way valve and the electric air pump is connected to a muffler through a pipeline, and an exhaust valve is provided on the pipeline between the muffler and the electric air pump, and the exhaust valve is connected to the locked-rotor current control circuit board through a wire, and the air outlet of the air storage tank is connected to a five-way valve through a pipeline, and an air intake valve is provided on the pipeline between the air storage tank and the five-way valve, and the air intake valve is connected to the locked-rotor current control circuit board through a wire, and the second interface of the five-way valve is connected to a flange pressure gauge clamping mechanism through a pipeline, and a flange gauge air intake shut-off valve, a pressure sensor and a fine-tuning handle are provided on the pipeline between the five-way valve and the flange pressure gauge clamping mechanism. The sensors are all connected to the stall current control circuit board through wires, the fine-tuning handle and the flange meter intake shut-off valve are both arranged on the outer casing, the pressure sensor is arranged between the intake shut-off valve and the five-way valve, the fine-tuning handle is arranged between the pressure sensor and the five-way valve, the third interface of the five-way valve is connected to the three-way valve through a pipeline, the second interface of the three-way valve is connected to the first conventional meter inspected interface through a pipeline, the first conventional meter inspected interface is arranged on the outer casing, the third interface of the three-way valve is connected to the second conventional meter inspected interface through a pipeline, the second conventional meter inspected interface is arranged on the outer casing, the fourth interface of the five-way valve is connected to the sewage oil cup through a pipeline, the sewage oil cup is arranged on the outer casing, a quick pressure relief valve is provided on the pipeline between the five-way valve and the sewage oil cup, the quick pressure relief valve is connected to the stall current control circuit board through a wire, the fifth interface of the five-way valve is connected to the pressure relief pipeline, the pressure relief pipeline is provided with a pressure regulating exhaust valve, and the pressure regulating exhaust valve is connected to the stall current control circuit board through a wire.

[0011] The locked-rotor current control circuit board is connected to a quick pressure relief button through a wire, and the quick pressure relief button is arranged on the housing.

[0012] The locked-rotor current control circuit board is connected to a potentiometer voltage regulating knob through a wire, and the potentiometer voltage regulating knob is arranged on the housing.

[0013] An air source pressure gauge is provided on the pipeline between the air storage tank and the one-way valve, and the air source pressure gauge is provided on the outer shell.

[0014] Two concealed handles are provided on the shell, and the two concealed handles are set correspondingly.

[0015] The flange-type pressure gauge clamping mechanism connection includes an electric push rod fixing support, which is fixed to the bottom surface of the inner shell, and four support rods are vertically fixed to the upper end face of the electric push rod fixing support, and the other ends of the four support rods are fixed to the top of the shell together. A through hole is opened on the top surface of the shell, and a support cylinder is slidably installed in the through hole. The cross-section of the support cylinder is "T"-shaped, and the support cylinder is a hollow step column. A tray is fixed to the upper part of the support cylinder, and the tray is arranged on the outside of the shell. The upper end face of the electric push rod fixing support is fixed to the electric push rod, and the inlet end of the electric push rod is connected to the second interface of the five-way valve through a pipeline, and the electric push rod is connected to the locked current control circuit board through a wire. The lower part of the support cylinder is sleeved on the outer wall of the output end of the electric push rod, and the support cylinder and the electric push rod are fixed by a connecting pin. Corresponding blocks are fixed to both sides of the through hole on the top of the shell, and the upper spacing between the two blocks is smaller than the diameter of the tray, and a flange pressure gauge is provided on the tray.

[0016] The beneficial effects of the utility model are:

[0017] The flange pressure gauge calibration device provided by the utility model adopts an electric clamping mode instead of manual tightening of bolts during the flange pressure gauge detection process, which reduces disassembly actions, reduces the workload of staff, and improves work efficiency; by controlling the pressure in electric mode, rapid pressure regulation is achieved, the accuracy of pressure control is improved, and the problem of inaccurate pressure control that may be caused by manual mechanical valves is avoided, thereby ensuring detection accuracy; the equipment has two interface modes, which is not only suitable for the calibration of flange pressure gauges, but also can calibrate pressure gauges with conventional interfaces. It has strong compatibility, realizes multi-functional applications, and improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the flange type pressure gauge calibration device of the utility model;

[0019] Figure 2 This is the front view of the flange type pressure gauge calibration device of the utility model;

[0020] Figure 3 This is a top view of the flange type pressure gauge calibration device of the utility model;

[0021] Figure 4 This is a side view of the flange type pressure gauge calibration device of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the clamping mechanism of the flange type pressure gauge of the present utility model.

[0023] In the figure, 1. First conventional gauge test interface, 2. Flange pressure gauge clamping mechanism, 201. Flange pressure gauge, 202. Stopper, 203. Tray, 204. Support cylinder, 205. Connecting pin, 206. Electric push rod, 207. Support rod, 208. Electric push rod fixed support, 209. Mounting plate, 3. Touch screen, 4. Second conventional gauge test interface, 5. Equipment operation button, 6. Clamping mechanism working button, 7. Quick pressure relief button, 8. Potentiometer pressure adjustment knob, 9. Fine adjustment handle , 10. Air source pressure gauge, 11. Flange meter air inlet shut-off valve, 12. Drain oil cup, 13. Concealed handle, 14. Power interface, 15. Electric air pump, 16. Exhaust valve, 17. Muffler, 18. One-way valve, 19. Pressure switch, 20. Air storage tank, 21. Inlet valve, 22. Pressure regulating exhaust valve, 23. Pressure sensor, 24. Stalled rotor current control circuit board, 25. Housing, 26. Five-way valve, 27. Three-way valve, 28.24V voltage converter, 29. Quick pressure relief valve. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The flange type pressure gauge calibration device provided by the utility model is as follows Figure 1 As shown, it includes a housing 25, which is formed by bending a cold-rolled steel plate and having a surface spray-painted. A power control system is installed on the housing 25. The power control system is connected to an air source control system and a flange-type pressure gauge clamping mechanism 2 through wires. The air source control system is connected to the flange-type pressure gauge clamping mechanism 2 through a pipeline. The air source control system and the flange-type pressure gauge clamping mechanism 2 are both installed on the housing 25; Figure 2As shown, the power control system includes a power interface 14, which is provided on a housing 25. The power interface 14 is connected to a 24V voltage converter 28 and a locked-rotor current control circuit board 24 in sequence through wires. The locked-rotor current control circuit board 24 is connected to a touch screen 3 through wires. The touch screen 3 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to an air source control system and a flange-type pressure gauge clamping mechanism 2 through wires. A device operation button 5 is provided on the wire between the power interface 14 and the locked-rotor current control circuit board 24. The device operation button 5 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to the air source control system and the flange-type pressure gauge clamping mechanism 2 through wires. A clamping mechanism working button 6 is provided on the wire between the clamping mechanism 2 of the flange-type pressure gauge, and the clamping mechanism working button 6 is provided on the housing 25; the air source control system includes an electric air pump 15, which is connected to the locked-rotor current control circuit board 24 through a wire, and the electric air pump 15 is connected to the air tank 20 through a pipeline, and a one-way valve 18 is provided on the pipeline between the electric air pump 15 and the air tank 20, and a pressure switch 19 is provided on the pipeline between the air tank 20 and the one-way valve 18, and the pressure switch 19 is connected to the locked-rotor current control circuit board 24 through a wire, and the pipeline between the one-way valve 18 and the electric air pump 15 is connected to the muffler 17 through a pipeline. An exhaust valve 16 is provided on the pipeline between the muffler 17 and the electric air pump 15, and the exhaust valve 16 is connected to the locked-rotor current control circuit board 24 through a wire. The air outlet of the air storage tank 20 is connected to the five-way valve 26 through a pipeline. An intake valve 21 is provided on the pipeline between the air storage tank 20 and the five-way valve 26, and the intake valve 21 is connected to the locked-rotor current control circuit board 24 through a wire. The second interface of the five-way valve 26 is connected to the flange-type pressure gauge clamping mechanism 2 through a pipeline. A flange-type intake stop valve 11, a pressure sensor 23 and a fine-tuning handle 9 are provided on the pipeline between the five-way valve 26 and the flange-type pressure gauge clamping mechanism 2. The intake stop valve 11 and the pressure sensor 2 3 are connected to the locked-rotor current control circuit board 24 through a wire, the fine-tuning handle 9 and the flange meter intake stop valve 11 are both provided on the housing 25, the pressure sensor 23 is provided between the intake stop valve 11 and the five-way valve 26, the fine-tuning handle 9 is provided between the pressure sensor 23 and the five-way valve 26, the third interface of the five-way valve 26 is connected to the three-way valve 27 through a pipeline, the second interface of the three-way valve 27 is connected to the first conventional meter tested interface 1 through a pipeline, the first conventional meter tested interface 1 is provided on the housing 25, the third interface of the three-way valve 27 is connected to the second conventional meter tested interface 4 through a pipeline, the second conventional meter tested interface 4 is provided on the housing 25, as shown in FIG. Figure 3As shown, the fourth interface of the five-way valve 26 is connected to the sewage oil cup 12 through a pipeline, and the sewage oil cup 12 is arranged on the shell 25. A quick pressure relief valve 29 is provided on the pipeline between the five-way valve 26 and the sewage oil cup 12, and the quick pressure relief valve 29 is connected to the locked-rotor current control circuit board 24 through a wire. The fifth interface of the five-way valve 26 is connected to a pressure relief pipeline, and a pressure regulating exhaust valve 22 is provided on the pressure relief pipeline, and the pressure regulating exhaust valve 22 is connected to the locked-rotor current control circuit board 24 through a wire; the locked-rotor current control circuit board 24 is connected to a quick pressure relief button 7 through a wire, and the quick pressure relief button 7 is arranged on the shell 25; the locked-rotor current control circuit board 24 is connected to a potentiometer pressure regulating knob 8 through a wire, and the potentiometer pressure regulating knob 8 is arranged on the shell 25; an air source pressure gauge 10 is provided on the pipeline between the air storage tank 20 and the one-way valve 18, and the air source pressure gauge 10 is arranged on the shell 25; as shown Figure 4 As shown, two concealed handles 13 are provided on the housing 25, and the two concealed handles 13 are provided correspondingly. Figure 5 As shown, the flange type pressure gauge clamping mechanism 2 connection includes an electric push rod fixed support 208, the electric push rod fixed support 208 is fixed to the inner bottom surface of the shell 25, and the upper end surface of the electric push rod fixed support 208 is vertically fixed with four support rods 207, and the other ends of the four support rods 207 are fixed together to the top of the shell 25. A through hole is opened on the top surface of the shell 25, and a support cylinder 204 is slidably installed in the through hole. The cross section of the support cylinder 204 is "T"-shaped, and the support cylinder 204 is a hollow stepped column. The upper part of the support cylinder 204 is fixed with a tray 203, and the tray 203 is arranged on the outside of the shell 25. The upper end surface of the electric push rod fixed support 208 is fixed with an electric push rod 206. The inlet end of the electric push rod 206 is connected to the second interface of the five-way valve 26 through a pipeline. 206 is connected to the locked-rotor current control circuit board 24 through a wire. The lower part of the support cylinder 204 is sleeved on the outer wall of the output end of the electric push rod 206. The support cylinder 204 and the electric push rod 206 are fixedly connected by a connecting pin 205. Corresponding blocks 202 are fixed on both sides of the through hole on the top of the shell 25. The upper distance between the two blocks 202 is smaller than the diameter of the tray 203. A flange pressure gauge 201 is provided on the tray 203. The locked-rotor current is used to control the rise and fall of the electric push rod 206 and the flange pressure gauge 201 is locked by the two blocks 202. When the flange pressure gauge 201 is locked, the air source control system inputs a set pressure value to the flange pressure gauge 201, and compares it with the standard gauge to calibrate the accuracy of the flange pressure gauge 201.

[0026] The flange pressure gauge calibration device has the advantages that the flange pressure gauge 201 is placed on the tray 203, the pressure bottom disc and the tray 203 are coaxial, the electric push rod 206 is started to rise until the flange upper surface of the flange pressure gauge 201 is in contact with the stopper 202, the lifting distance of the electric push rod 206 is controlled by using the change of the locked-rotor current, the flange pressure gauge 201 is clamped, the electric push rod 206 motor is stopped in time to protect the motor, and the equipment can work normally.

[0027] Embodiment 1

[0028] The flange pressure gauge calibration device provided in the embodiment has the advantages that the flange pressure gauge 201 is placed on the tray 203, the pressure bottom disc and the tray 203 are coaxial, the electric push rod 206 is started to rise until the flange upper surface of the flange pressure gauge 201 is in contact with the stopper 202, the lifting distance of the electric push rod 206 is controlled by using the change of the locked-rotor current, the flange pressure gauge 201 is clamped, the electric push rod 206 motor is stopped in time to protect the motor, and the equipment can work normally. Figure 1 As shown in the figure, the flange pressure gauge calibration device comprises an outer shell 25, a power supply control system is installed on the outer shell 25, the power supply control system is connected with a gas source control system and a flange pressure gauge clamping mechanism 2 through wires respectively, the gas source control system is connected with the flange pressure gauge clamping mechanism 2 through a pipeline, and the gas source control system and the flange pressure gauge clamping mechanism 2 are both installed on the outer shell 25.

[0029] Embodiment 2

[0030] The flange pressure gauge calibration device provided in the embodiment has the advantages that the flange pressure gauge 201 is placed on the tray 203, the pressure bottom disc and the tray 203 are coaxial, the electric push rod 206 is started to rise until the flange upper surface of the flange pressure gauge 201 is in contact with the stopper 202, the lifting distance of the electric push rod 206 is controlled by using the change of the locked-rotor current, the flange pressure gauge 201 is clamped, the electric push rod 206 motor is stopped in time to protect the motor, and the equipment can work normally. Figure 1 As shown in the figure, the flange pressure gauge calibration device comprises an outer shell 25, a power supply control system is installed on the outer shell 25, the power supply control system is connected with a gas source control system and a flange pressure gauge clamping mechanism 2 through wires respectively, the gas source control system is connected with the flange pressure gauge clamping mechanism 2 through a pipeline, and the gas source control system and the flange pressure gauge clamping mechanism 2 are both installed on the outer shell 25. Figure 2 As shown in the figure, the power supply control system comprises a power supply interface 14, the power supply interface 14 is arranged on the outer shell 25, the power supply interface 14 is connected with a 24V voltage converter 28 and a locked-rotor current control circuit board 24 through wires in sequence, the locked-rotor current control circuit board 24 is connected with a touch display screen 3 through wires, the touch display screen 3 is arranged on the outer shell 25, and the locked-rotor current control circuit board 24 is connected with the gas source control system and the flange pressure gauge clamping mechanism 2 through wires respectively.

[0031] Embodiment 3

[0032] The flange pressure gauge calibration device provided in the embodiment has the advantages that the flange pressure gauge 201 is placed on the tray 203, the pressure bottom disc and the tray 203 are coaxial, the electric push rod 206 is started to rise until the flange upper surface of the flange pressure gauge 201 is in contact with the stopper 202, the lifting distance of the electric push rod 206 is controlled by using the change of the locked-rotor current, the flange pressure gauge 201 is clamped, the electric push rod 206 motor is stopped in time to protect the motor, and the equipment can work normally. Figure 1 As shown in the figure, the flange pressure gauge calibration device comprises an outer shell 25, a power supply control system is installed on the outer shell 25, the power supply control system is connected with a gas source control system and a flange pressure gauge clamping mechanism 2 through wires respectively, the gas source control system is connected with the flange pressure gauge clamping mechanism 2 through a pipeline, and the gas source control system and the flange pressure gauge clamping mechanism 2 are both installed on the outer shell 25. Figure 2As shown, the power control system includes a power interface 14, which is provided on the housing 25. The power interface 14 is connected to a 24V voltage converter 28 and a locked-rotor current control circuit board 24 in sequence through wires. The locked-rotor current control circuit board 24 is connected to a touch screen 3 through wires. The touch screen 3 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to the air source control system and the flange-type pressure gauge clamping mechanism 2 through wires respectively; an equipment operation button 5 is provided on the wire between the power interface 14 and the locked-rotor current control circuit board 24, and the equipment operation button 5 is provided on the housing 25; a clamping mechanism working button 6 is provided on the wire between the locked-rotor current control circuit board 24 and the flange-type pressure gauge clamping mechanism 2, and the clamping mechanism working button 6 is provided on the housing 25.

[0033] Example 4

[0034] The flange type pressure gauge calibration device proposed in this embodiment is as follows: Figure 1 As shown, it includes a housing 25, a power control system is installed on the housing 25, the power control system is connected to the air source control system and the flange pressure gauge clamping mechanism 2 through wires, the air source control system is connected to the flange pressure gauge clamping mechanism 2 through a pipeline, and the air source control system and the flange pressure gauge clamping mechanism 2 are both installed on the housing 25; Figure 2As shown, the power control system includes a power interface 14, which is provided on a housing 25. The power interface 14 is connected to a 24V voltage converter 28 and a locked-rotor current control circuit board 24 in sequence through wires. The locked-rotor current control circuit board 24 is connected to a touch screen 3 through wires. The touch screen 3 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to an air source control system and a flange-type pressure gauge clamping mechanism 2 through wires. A device operation button 5 is provided on the wire between the power interface 14 and the locked-rotor current control circuit board 24. The device operation button 5 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to the air source control system and the flange-type pressure gauge clamping mechanism 2 through wires. A clamping mechanism working button 6 is provided on the wire between the clamping mechanism 2 of the flange-type pressure gauge, and the clamping mechanism working button 6 is provided on the housing 25; the air source control system includes an electric air pump 15, which is connected to the locked-rotor current control circuit board 24 through a wire, and the electric air pump 15 is connected to the air tank 20 through a pipeline, and a one-way valve 18 is provided on the pipeline between the electric air pump 15 and the air tank 20, and a pressure switch 19 is provided on the pipeline between the air tank 20 and the one-way valve 18, and the pressure switch 19 is connected to the locked-rotor current control circuit board 24 through a wire, and the pipeline between the one-way valve 18 and the electric air pump 15 is connected to the muffler 17 through a pipeline. An exhaust valve 16 is provided on the pipeline between the muffler 17 and the electric air pump 15, and the exhaust valve 16 is connected to the locked-rotor current control circuit board 24 through a wire. The air outlet of the air storage tank 20 is connected to the five-way valve 26 through a pipeline. An intake valve 21 is provided on the pipeline between the air storage tank 20 and the five-way valve 26, and the intake valve 21 is connected to the locked-rotor current control circuit board 24 through a wire. The second interface of the five-way valve 26 is connected to the flange-type pressure gauge clamping mechanism 2 through a pipeline. A flange-type intake stop valve 11, a pressure sensor 23 and a fine-tuning handle 9 are provided on the pipeline between the five-way valve 26 and the flange-type pressure gauge clamping mechanism 2. The intake stop valve 11 and the pressure sensor 2 3 are connected to the locked-rotor current control circuit board 24 through a wire, the fine-tuning handle 9 and the flange meter intake stop valve 11 are both provided on the housing 25, the pressure sensor 23 is provided between the intake stop valve 11 and the five-way valve 26, the fine-tuning handle 9 is provided between the pressure sensor 23 and the five-way valve 26, the third interface of the five-way valve 26 is connected to the three-way valve 27 through a pipeline, the second interface of the three-way valve 27 is connected to the first conventional meter tested interface 1 through a pipeline, the first conventional meter tested interface 1 is provided on the housing 25, the third interface of the three-way valve 27 is connected to the second conventional meter tested interface 4 through a pipeline, the second conventional meter tested interface 4 is provided on the housing 25, as shown in FIG. Figure 3As shown, the fourth interface of the five-way valve 26 is connected to the drain oil cup 12 through a pipeline, and the drain oil cup 12 is arranged on the shell 25. A quick pressure relief valve 29 is provided on the pipeline between the five-way valve 26 and the drain oil cup 12. The quick pressure relief valve 29 is connected to the locked-rotor current control circuit board 24 through a wire. The fifth interface of the five-way valve 26 is connected to a pressure relief pipeline, and a pressure-regulating exhaust valve 22 is provided on the pressure relief pipeline. The pressure-regulating exhaust valve 22 is connected to the locked-rotor current control circuit board 24 through a wire.

[0035] Example 5

[0036] The flange type pressure gauge calibration device proposed in this embodiment is as follows: Figure 1 As shown, it includes a housing 25, a power control system is installed on the housing 25, the power control system is connected to the air source control system and the flange pressure gauge clamping mechanism 2 through wires, the air source control system is connected to the flange pressure gauge clamping mechanism 2 through a pipeline, and the air source control system and the flange pressure gauge clamping mechanism 2 are both installed on the housing 25; Figure 2As shown, the power control system includes a power interface 14, which is provided on a housing 25. The power interface 14 is connected to a 24V voltage converter 28 and a locked-rotor current control circuit board 24 in sequence through wires. The locked-rotor current control circuit board 24 is connected to a touch screen 3 through wires. The touch screen 3 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to an air source control system and a flange-type pressure gauge clamping mechanism 2 through wires. A device operation button 5 is provided on the wire between the power interface 14 and the locked-rotor current control circuit board 24. The device operation button 5 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to the air source control system and the flange-type pressure gauge clamping mechanism 2 through wires. A clamping mechanism working button 6 is provided on the wire between the clamping mechanism 2 of the flange-type pressure gauge, and the clamping mechanism working button 6 is provided on the housing 25; the air source control system includes an electric air pump 15, which is connected to the locked-rotor current control circuit board 24 through a wire, and the electric air pump 15 is connected to the air tank 20 through a pipeline, and a one-way valve 18 is provided on the pipeline between the electric air pump 15 and the air tank 20, and a pressure switch 19 is provided on the pipeline between the air tank 20 and the one-way valve 18, and the pressure switch 19 is connected to the locked-rotor current control circuit board 24 through a wire, and the pipeline between the one-way valve 18 and the electric air pump 15 is connected to the muffler 17 through a pipeline. An exhaust valve 16 is provided on the pipeline between the muffler 17 and the electric air pump 15, and the exhaust valve 16 is connected to the locked-rotor current control circuit board 24 through a wire. The air outlet of the air storage tank 20 is connected to the five-way valve 26 through a pipeline. An intake valve 21 is provided on the pipeline between the air storage tank 20 and the five-way valve 26, and the intake valve 21 is connected to the locked-rotor current control circuit board 24 through a wire. The second interface of the five-way valve 26 is connected to the flange-type pressure gauge clamping mechanism 2 through a pipeline. A flange-type intake stop valve 11, a pressure sensor 23 and a fine-tuning handle 9 are provided on the pipeline between the five-way valve 26 and the flange-type pressure gauge clamping mechanism 2. The intake stop valve 11 and the pressure sensor 2 3 are connected to the locked-rotor current control circuit board 24 through a wire, the fine-tuning handle 9 and the flange meter intake stop valve 11 are both provided on the housing 25, the pressure sensor 23 is provided between the intake stop valve 11 and the five-way valve 26, the fine-tuning handle 9 is provided between the pressure sensor 23 and the five-way valve 26, the third interface of the five-way valve 26 is connected to the three-way valve 27 through a pipeline, the second interface of the three-way valve 27 is connected to the first conventional meter tested interface 1 through a pipeline, the first conventional meter tested interface 1 is provided on the housing 25, the third interface of the three-way valve 27 is connected to the second conventional meter tested interface 4 through a pipeline, the second conventional meter tested interface 4 is provided on the housing 25, as shown in FIG. Figure 3As shown, the fourth interface of the five-way valve 26 is connected to the sewage oil cup 12 through a pipeline, and the sewage oil cup 12 is arranged on the shell 25. A quick pressure relief valve 29 is provided on the pipeline between the five-way valve 26 and the sewage oil cup 12, and the quick pressure relief valve 29 is connected to the locked-rotor current control circuit board 24 through a wire. The fifth interface of the five-way valve 26 is connected to a pressure relief pipeline, and a pressure regulating exhaust valve 22 is provided on the pressure relief pipeline, and the pressure regulating exhaust valve 22 is connected to the locked-rotor current control circuit board 24 through a wire; the locked-rotor current control circuit board 24 is connected to a quick pressure relief button 7 through a wire, and the quick pressure relief button 7 is arranged on the shell 25; the locked-rotor current control circuit board 24 is connected to a potentiometer pressure regulating knob 8 through a wire, and the potentiometer pressure regulating knob 8 is arranged on the shell 25; an air source pressure gauge 10 is provided on the pipeline between the air storage tank 20 and the one-way valve 18, and the air source pressure gauge 10 is arranged on the shell 25; as shown Figure 4 As shown, two concealed handles 13 are provided on the housing 25, and the two concealed handles 13 are arranged correspondingly.

[0037] Example 6

[0038] The flange type pressure gauge calibration device proposed in this embodiment is as follows: Figure 1 As shown, it includes a housing 25, a power control system is installed on the housing 25, the power control system is connected to the air source control system and the flange pressure gauge clamping mechanism 2 through wires, the air source control system is connected to the flange pressure gauge clamping mechanism 2 through a pipeline, and the air source control system and the flange pressure gauge clamping mechanism 2 are both installed on the housing 25; Figure 2As shown, the power control system includes a power interface 14, which is provided on a housing 25. The power interface 14 is connected to a 24V voltage converter 28 and a locked-rotor current control circuit board 24 in sequence through wires. The locked-rotor current control circuit board 24 is connected to a touch screen 3 through wires. The touch screen 3 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to an air source control system and a flange-type pressure gauge clamping mechanism 2 through wires. A device operation button 5 is provided on the wire between the power interface 14 and the locked-rotor current control circuit board 24. The device operation button 5 is provided on the housing 25. The locked-rotor current control circuit board 24 is connected to the air source control system and the flange-type pressure gauge clamping mechanism 2 through wires. A clamping mechanism working button 6 is provided on the wire between the clamping mechanism 2 of the flange-type pressure gauge, and the clamping mechanism working button 6 is provided on the housing 25; the air source control system includes an electric air pump 15, which is connected to the locked-rotor current control circuit board 24 through a wire, and the electric air pump 15 is connected to the air tank 20 through a pipeline, and a one-way valve 18 is provided on the pipeline between the electric air pump 15 and the air tank 20, and a pressure switch 19 is provided on the pipeline between the air tank 20 and the one-way valve 18, and the pressure switch 19 is connected to the locked-rotor current control circuit board 24 through a wire, and the pipeline between the one-way valve 18 and the electric air pump 15 is connected to the muffler 17 through a pipeline. An exhaust valve 16 is provided on the pipeline between the muffler 17 and the electric air pump 15, and the exhaust valve 16 is connected to the locked-rotor current control circuit board 24 through a wire. The air outlet of the air storage tank 20 is connected to the five-way valve 26 through a pipeline. An intake valve 21 is provided on the pipeline between the air storage tank 20 and the five-way valve 26, and the intake valve 21 is connected to the locked-rotor current control circuit board 24 through a wire. The second interface of the five-way valve 26 is connected to the flange-type pressure gauge clamping mechanism 2 through a pipeline. A flange-type intake stop valve 11, a pressure sensor 23 and a fine-tuning handle 9 are provided on the pipeline between the five-way valve 26 and the flange-type pressure gauge clamping mechanism 2. The intake stop valve 11 and the pressure sensor 2 3 are connected to the locked-rotor current control circuit board 24 through a wire, the fine-tuning handle 9 and the flange meter intake stop valve 11 are both provided on the housing 25, the pressure sensor 23 is provided between the intake stop valve 11 and the five-way valve 26, the fine-tuning handle 9 is provided between the pressure sensor 23 and the five-way valve 26, the third interface of the five-way valve 26 is connected to the three-way valve 27 through a pipeline, the second interface of the three-way valve 27 is connected to the first conventional meter tested interface 1 through a pipeline, the first conventional meter tested interface 1 is provided on the housing 25, the third interface of the three-way valve 27 is connected to the second conventional meter tested interface 4 through a pipeline, the second conventional meter tested interface 4 is provided on the housing 25, as shown in FIG. Figure 3As shown, the fourth interface of the five-way valve 26 is connected to the sewage oil cup 12 through a pipeline, and the sewage oil cup 12 is arranged on the shell 25. A quick pressure relief valve 29 is provided on the pipeline between the five-way valve 26 and the sewage oil cup 12, and the quick pressure relief valve 29 is connected to the locked-rotor current control circuit board 24 through a wire. The fifth interface of the five-way valve 26 is connected to a pressure relief pipeline, and a pressure regulating exhaust valve 22 is provided on the pressure relief pipeline, and the pressure regulating exhaust valve 22 is connected to the locked-rotor current control circuit board 24 through a wire; the locked-rotor current control circuit board 24 is connected to a quick pressure relief button 7 through a wire, and the quick pressure relief button 7 is arranged on the shell 25; the locked-rotor current control circuit board 24 is connected to a potentiometer pressure regulating knob 8 through a wire, and the potentiometer pressure regulating knob 8 is arranged on the shell 25; an air source pressure gauge 10 is provided on the pipeline between the air storage tank 20 and the one-way valve 18, and the air source pressure gauge 10 is arranged on the shell 25; as shown Figure 4 As shown, two concealed handles 13 are provided on the housing 25, and the two concealed handles 13 are provided correspondingly. Figure 5 As shown, the flange type pressure gauge clamping mechanism 2 is connected to include an electric push rod fixed support 208, the electric push rod fixed support 208 is fixed to the inner bottom surface of the shell 25, and the upper end surface of the electric push rod fixed support 208 is vertically fixed with four support rods 207, and the other ends of the four support rods 207 are fixed together to the top of the shell 25. A through hole is opened on the top surface of the shell 25, and a support cylinder 204 is slidably installed in the through hole. The cross section of the support cylinder 204 is "T" shaped, and the support cylinder 204 is a hollow step column. The upper part of the support cylinder 204 is fixed with a tray 203, and the tray 203 is arranged outside the shell 25. On the side, the electric push rod 206 is fixedly connected to the upper end surface of the electric push rod fixed support 208, the inlet end of the electric push rod 206 is connected to the second interface of the five-way valve 26 through a pipeline, the electric push rod 206 is connected to the locked current control circuit board 24 through a wire, and the lower part of the support tube 204 is sleeved on the outer wall of the output end of the electric push rod 206, the support tube 204 and the electric push rod 206 are fixedly connected by a connecting pin 205, and the top of the shell 25 is fixed with corresponding blocks 202 on both sides of the through hole, and the distance between the upper parts of the two blocks 202 is smaller than the diameter of the tray 203, and a flange pressure gauge 201 is provided on the tray 203.

Claims

1. Flange type pressure gauge calibration device, characterized in that: The invention comprises a housing (25), a power supply control system is installed on the housing (25), the power supply control system is connected to an air source control system and a flange type pressure gauge clamping mechanism (2) via wires, the air source control system is connected to the flange type pressure gauge clamping mechanism (2) via a pipeline, and the air source control system and the flange type pressure gauge clamping mechanism (2) are both installed on the housing (25).

2. The flange type pressure gauge calibration device according to claim 1, characterized in that: The power control system comprises a power interface (14), the power interface (14) being provided on the housing (25), the power interface (14) being connected in sequence to a 24V voltage converter (28) and a locked-rotor current control circuit board (24) via wires, the locked-rotor current control circuit board (24) being connected to a touch screen (3) via wires, the touch screen (3) being provided on the housing (25), and the locked-rotor current control circuit board (24) being connected to the air source control system and the flange-type pressure gauge clamping mechanism (2) via wires.

3. The flange type pressure gauge calibration device according to claim 2, characterized in that: A device operation button (5) is provided on the wire between the power interface (14) and the locked-rotor current control circuit board (24), and the device operation button (5) is provided on the housing (25).

4. The flange type pressure gauge calibration device according to claim 3, characterized in that: A clamping mechanism operating button (6) is provided on the wire between the locked-rotor current control circuit board (24) and the flange-type pressure gauge clamping mechanism (2), and the clamping mechanism operating button (6) is provided on the housing (25).

5. The flange type pressure gauge calibration device according to claim 4, characterized in that: The air source control system comprises an electric air pump (15), the electric air pump (15) is connected to the locked-rotor current control circuit board (24) via a wire, the electric air pump (15) is connected to the air tank (20) via a pipeline, a one-way valve (18) is provided on the pipeline between the electric air pump (15) and the air tank (20), a pressure switch (19) is provided on the pipeline between the air tank (20) and the one-way valve (18), the pressure switch (19) is connected to the locked-rotor current control circuit board (24) via a wire, the pipeline between the one-way valve (18) and the electric air pump (15) is connected to a muffler (17) via a pipeline, and a muffler (17) is provided on the pipeline between the muffler (17) and the electric air pump (15). An exhaust valve (16), the exhaust valve (16) is connected to the locked-rotor current control circuit board (24) through a wire, the air outlet of the gas storage tank (20) is connected to the five-way valve (26) through a pipeline, an intake valve (21) is provided on the pipeline between the gas storage tank (20) and the five-way valve (26), the intake valve (21) is connected to the locked-rotor current control circuit board (24) through a wire, the second interface of the five-way valve (26) is connected to the flange-type pressure gauge clamping mechanism (2) through a pipeline, a flange-type pressure gauge intake stop valve (11), a pressure sensor (23) and a fine-tuning handle (9) are provided on the pipeline between the five-way valve (26) and the flange-type pressure gauge clamping mechanism (2), the intake stop valve (11) and The pressure sensors (23) are connected to the locked-rotor current control circuit board (24) through a wire, the fine-tuning handle (9) and the flange meter intake stop valve (11) are both arranged on the housing (25), the pressure sensor (23) is arranged between the intake stop valve (11) and the five-way valve (26), the fine-tuning handle (9) is arranged between the pressure sensor (23) and the five-way valve (26), the third interface of the five-way valve (26) is connected to the three-way valve (27) through a pipeline, the second interface of the three-way valve (27) is connected to the first conventional meter tested interface (1) through a pipeline, the first conventional meter tested interface (1) is arranged on the housing (25), and the third interface of the three-way valve (27) is connected to the first conventional meter tested interface (1) through a pipeline. The pipeline is connected to a second conventional meter inspection interface (4), the second conventional meter inspection interface (4) is provided on the housing (25), the fourth interface of the five-way valve (26) is connected to a sewage oil cup (12) through a pipeline, the sewage oil cup (12) is provided on the housing (25), a quick pressure relief valve (29) is provided on the pipeline between the five-way valve (26) and the sewage oil cup (12), the quick pressure relief valve (29) is connected to the locked-rotor current control circuit board (24) through a wire, the fifth interface of the five-way valve (26) is connected to a pressure relief pipeline, the pressure relief pipeline is provided with a pressure regulating exhaust valve (22), and the pressure regulating exhaust valve (22) is connected to the locked-rotor current control circuit board (24) through a wire.

6. The flange type pressure gauge calibration device according to claim 5, characterized in that: The locked-rotor current control circuit board (24) is connected to a quick pressure relief button (7) via a wire, and the quick pressure relief button (7) is provided on the housing (25).

7. The flange type pressure gauge calibration device according to claim 6, characterized in that: The locked-rotor current control circuit board (24) is connected to a potentiometer voltage adjustment knob (8) via a wire, and the potentiometer voltage adjustment knob (8) is arranged on the housing (25).

8. The flange type pressure gauge calibration device according to claim 7, characterized in that: An air source pressure gauge (10) is provided on the pipeline between the air storage tank (20) and the one-way valve (18), and the air source pressure gauge (10) is provided on the housing (25).

9. The flange type pressure gauge calibration device according to claim 8, characterized in that: Two concealed handles (13) are provided on the housing (25), and the two concealed handles (13) are arranged correspondingly.

10. The flange type pressure gauge calibration device according to claim 9, characterized in that: The flange type pressure gauge clamping mechanism (2) is connected to include an electric push rod fixed support (208), the electric push rod fixed support (208) is fixed to the inner bottom surface of the shell (25), the upper end surface of the electric push rod fixed support (208) is vertically fixed with four support rods (207), the other ends of the four support rods (207) are commonly fixed to the top of the shell (25), the upper top surface of the shell (25) is provided with a through hole, a support tube (204) is slidably installed in the through hole, the cross section of the support tube (204) is "T" shaped, the support tube (204) is in the shape of a hollow step column, the upper part of the support tube (204) is fixed with a tray (203), and the tray (203) is arranged on the outside of the shell (25). The upper end surface of the electric push rod fixed support (208) is fixed with an electric push rod (206), the inlet end of the electric push rod (206) is connected to the second interface of the five-way valve (26) through a pipeline, the electric push rod (206) is connected to the locked-rotor current control circuit board (24) through a wire, the lower part of the support cylinder (204) is sleeved on the outer wall of the output end of the electric push rod (206), the support cylinder (204) and the electric push rod (206) are fixedly connected by a connecting pin (205), the top of the housing (25) is fixed with corresponding blocks (202) on both sides of the through hole, the distance between the upper parts of the two blocks (202) is smaller than the diameter of the tray (203), and the tray (203) is provided with a flange pressure gauge (201).

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