CN219737120U - Automatic change control hydrostatic test device - Google Patents
Automatic change control hydrostatic test device Download PDFInfo
- Publication number
- CN219737120U CN219737120U CN202321284292.7U CN202321284292U CN219737120U CN 219737120 U CN219737120 U CN 219737120U CN 202321284292 U CN202321284292 U CN 202321284292U CN 219737120 U CN219737120 U CN 219737120U
- Authority
- CN
- China
- Prior art keywords
- pressure
- assembly
- valve
- module
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 99
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 239000010935 stainless steel Substances 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 16
- 230000001276 controlling effect Effects 0.000 claims description 13
- 235000014121 butter Nutrition 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002609 medium Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000003993 interaction Effects 0.000 description 5
- 230000003578 releasing effect Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides an automatic control hydrostatic test device which comprises a pressurizing module, a measurement and control module and an assembly module; the assembly module is used for mounting and dismounting the test piece; the measurement and control module is connected with the pressurizing module and used for controlling the pressurizing module to load the pressure of the test piece; the pressurizing module comprises a gas-driven component, a liquid flow pipeline and a pressure relief component; the gas-driven component and the pressure release component are respectively arranged at two ends of the liquid flow pipeline, the gas-driven component is used for pressurizing a liquid medium and injecting the liquid medium into the test piece through the liquid flow channel, the liquid flow channel comprises a safety valve, a sensor component, an electric proportional valve and a pneumatic control valve, the sensor component, the electric proportional valve and the pneumatic control valve are arranged on the stainless steel pipe in a serial connection mode, and the sensor component, the electric proportional valve and the pneumatic control valve are all connected with the measurement and control module; the sensor assembly collects pressure information in the liquid flow pipeline and feeds the pressure information back to the measurement and control module, stepped boosting, pressure maintaining and time delay pressure relief are achieved through the electric proportional valve, the result is accurate and reliable, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the field of hydrostatic tests, and particularly relates to an automatic control hydrostatic test device.
Background
The hydraulic test is an important production procedure before delivering the engine top cover body, and whether the test piece meets the technical requirement or not is verified through the test procedures of exhausting, boosting, pressure maintaining, pressure releasing and the like by filling clean tap water medium into the test piece and the hydraulic container after sealing assembly. The test result represents whether the processing precision, the material performance, the sealing performance and the bearing capacity of the product meet the design requirement, is an important index for judging whether the quality of the product is qualified, and is an important link for verifying the reliability of the product.
In the traditional manual operation hydrostatic test system, the pressure boosting, the pressure regulating and the pressure releasing are completed by manually controlling the valve, the pressure maintaining time and the pressure value reading are completed by visual inspection, the consistency of the read test data is poor, the labor intensity of workers is high, and weak links such as potential safety risk and low working efficiency of the operation under pressure exist.
Along with the increasing requirement of product precision, the production task amount is increased, and the defects brought by manual operation of the hydrostatic test which is transitionally dependent on manpower are gradually revealed, and the defects are mainly reflected in the following aspects:
1) The potential safety hazard of the operation of the valve under pressure exists in the manual operation of the valve in the test process, the labor intensity of workers is high, and the working efficiency is low;
2) The traditional manual operation cannot monitor the test process in real time, and cannot display a pressure curve and monitor the pressure fluctuation condition;
3) The starting and ending time of the test is counted by a stopwatch, so that the requirement on the attention of an operator is very high, but the deviation of the meter reading is unavoidable due to the fact that the pressure maintaining time is too short (generally within 30 seconds), and the phenomena of delay assessment and the like can occur;
4) The pressurizing, stabilizing, regulating and releasing processes are controlled by the manual valve, pressure fluctuation exists, and the pressure value born by each tested piece is different due to manual meter reading deviation, so that the consistency of test parameters is poor.
Disclosure of Invention
The utility model provides an automatic control hydraulic pressure test device, which aims to solve the problems that the test result is inaccurate, the working strength is high and potential safety hazards exist in the hydraulic pressure test of the existing engine top cover body.
The technical scheme of the utility model is as follows: an automatic control hydraulic pressure test device is characterized by comprising a pressurizing module, a measurement and control module and an assembly module;
the assembly module is used for mounting and dismounting a test piece;
the measurement and control module is connected with the pressurizing module and used for controlling the pressurizing module to pressurize the liquid medium;
the pressurizing module comprises an air drive assembly, a pressure regulating conveying assembly and a pressure relief assembly; the air drive assembly and the pressure release assembly are respectively arranged at two ends of the pressure regulating conveying assembly, and the air drive assembly is used for pressurizing the liquid medium and then injecting the liquid medium into the test piece through the pressure regulating conveying assembly;
the pressure regulating conveying assembly comprises a liquid flow pipeline, a safety valve, a sensor assembly, an electric proportional valve and a pneumatic control valve, wherein the sensor assembly, the electric proportional valve and the pneumatic control valve are arranged on the liquid flow pipeline in a serial connection mode, and the sensor assembly, the electric proportional valve and the pneumatic control valve are all connected with the measurement and control module;
the sensor assembly is used for collecting pressure information in the liquid flow pipeline and feeding the pressure information back to the measurement and control module.
Further, the air-driven component comprises a pressure regulating valve, an air source switch, an electromagnetic valve and a high-pressure pump, which are communicated through a high-pressure hose; the input end of the pressure regulating valve is connected with an air source, the air source switch is connected with the electromagnetic valve in parallel, the two ends of the air source switch are respectively connected with the output end of the pressure regulating valve and the input end of the high-pressure pump, and the output end of the high-pressure pump is connected with the inlet of the pressure regulating conveying assembly.
Further, the pressure relief assembly is arranged between the electric proportional valve and the pneumatic control valve on the pressure regulating conveying assembly, and comprises a liquid flow pipeline, the pneumatic control valve and an electromagnetic valve; the pneumatic control valve is arranged on the liquid flow pipeline and is connected with the measurement and control module through the electromagnetic valve; after the hydraulic test is finished, the pneumatic control valve of the pressure relief assembly can be opened for pressure relief under the control of the measurement and control module.
Further, the sensor assembly includes a first sensor and a second sensor; the first sensor is positioned between the safety valve and the electric proportional valve and is used for collecting the output pressure of the gas drive assembly and feeding the output pressure back to the measurement and control module; the second sensor is arranged between the pneumatic control valve and the high-pressure outlet of the liquid flow pipeline, and is used for collecting the test pressure value after being controlled and regulated by the measurement and control module and feeding back the test pressure value to the measurement and control module.
Further, the liquid flow pipeline is a high-pressure-resistant stainless steel pipe.
Further, the assembly module comprises a water pressure container and a plug-in quick-change adapter; the high-pressure outlet of the liquid flow pipeline in the pressure regulating conveying assembly is connected with the water inlet of the water pressure container through the plug-in type quick-change adapter, and the port of the water pressure container is in sealing connection with the end face of the test piece.
Further, the water pressure container is internally provided with an ellipsoidal cavity, and the side wall of the water pressure container is provided with a water inlet.
Further, the inside of the water pressure container is provided with a step-shaped cavity, and the bottom of the water pressure container is provided with a water inlet.
Further, the end face of the water pressure container is provided with a sealing ring groove, a sealing ring is arranged in the groove, and butter is coated on the sealing ring.
Further, the measurement and control module comprises a PLC controller and a man-machine interaction port.
The beneficial effects of the utility model are as follows:
1. the sensor component and the electric proportional valve in the pressurizing module are connected with the computer programmable logic controller in the measuring and controlling module, the PLC controller can control the opening degree of the electric proportional valve through a conventional control method, so that the quick and accurate adjustment of the pressure of the pressurizing speed is realized, the stepped pressure increasing, the stepped pressure maintaining and the delayed pressure releasing are realized, the test result is accurate and reliable, the pressure precision can reach +/-0.2 MPa, and the problems of technical risks, distortion of the test result and the like caused by manual valve control and manual meter reading operation are effectively avoided.
2. When the utility model is adopted for testing, a worker can monitor the testing state in real time through the man-machine interaction port of the measurement and control module, parameters such as test pressure, dwell time, pressure filling rate and the like can be set at any time according to the testing requirement, one-key operation of pressure filling, dwell time and pressure relief is realized, the pressure loading system is completely separated from the worker, potential safety hazards of operation under pressure caused by manual control of the valve in the processes of pressure filling, pressure stabilizing, pressure regulating and pressure relief are avoided, and the testing process is safe and reliable.
3. The device of the utility model is used for carrying out the hydrostatic test, thereby effectively reducing the labor intensity of operators, improving the production efficiency, and improving the production capacity of the hydrostatic test procedure by more than 2 times under the condition of not increasing post personnel.
Drawings
FIG. 1 is a schematic diagram of an automated control hydrostatic test unit connection according to the present utility model;
FIG. 2 is a schematic block diagram of a boosting module, a measurement and control module and a principle in the utility model;
FIG. 3 is a flow chart of the operation of the present utility model;
FIG. 4 is a schematic diagram of a hydraulic container with ellipsoidal cavity according to the present utility model;
FIG. 5 is a schematic view of a water pressure container with a stepped cavity according to the present utility model.
Reference numerals illustrate: 1-pressurizing module, 2-assembling module, 3-measurement and control module.
Detailed Description
The utility model discloses an automatic control hydraulic pressure test device which comprises a pressurizing module, a measurement and control module and an assembly module; the assembly module is used for mounting and dismounting a test piece; the measurement and control module is connected with the pressurizing module and used for controlling the pressurizing module to pressurize the liquid medium.
The pressurizing module comprises an air drive assembly, a pressure regulating conveying assembly and a pressure relief assembly; the air drive assembly and the pressure release assembly are respectively arranged at two ends of the pressure regulating conveying assembly, and the air drive assembly is used for pressurizing the liquid medium and then injecting the liquid medium into the test piece through the pressure regulating conveying assembly; the pressure regulating conveying assembly comprises a liquid flow pipeline, a safety valve, a sensor assembly, an electric proportional valve and a pneumatic control valve, wherein the sensor assembly, the electric proportional valve and the pneumatic control valve are arranged on the liquid flow pipeline in a serial connection mode, and the sensor assembly, the electric proportional valve and the pneumatic control valve are all connected with the measurement and control module; the sensor assembly is used for collecting pressure information in the liquid flow pipeline and feeding the pressure information back to the measurement and control module.
According to the utility model, the computer PLC controls the opening degree of the electric proportional valve of the pressurizing module to realize rapid adjustment of pressurizing speed and pressure, so that stepped boosting, stepped pressure maintaining and delayed pressure relief are realized, the phenomena of technical risks, distortion of test results and the like caused by manual operation are effectively avoided, and the pressure performance parameters of the tested piece obtained through the test under the conditions of normal temperature aqueous medium and different pressures are accurate and reliable.
The utility model is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-5. The utility model discloses an automatic control hydraulic pressure test device which comprises a pressurizing module, a measurement and control module and an assembly module; the assembly module is used for mounting and dismounting a test piece; and the measurement and control module is connected with the pressurizing module and used for controlling the pressurizing module to load pressure on the test piece.
The measurement and control module comprises a PLC controller and a man-machine interaction port, and is integrated in the control console. The man-machine interaction port is used for setting parameters such as test pressure, dwell time and pressurizing rate, realizing real-time monitoring of test states, facilitating parameter adjustment of staff at any time according to test requirements, and ensuring safe and reliable test.
The PLC controller can receive the pressure signal collected by the sensor assembly, and adjust and control the opening and closing of the electric proportional valve in the pressurizing module through a conventional control method, so that the pressurizing speed and the pressure can be quickly adjusted. When the pressure required by the test is reached, the PLC can control the pneumatic control valve in the pressure regulating conveying assembly to be opened, so that the test environment where the high-pressure water is injected into the test piece is subjected to the hydraulic test, and the pressure performance parameters of the test piece under the conditions of normal-temperature water medium and different pressures are obtained. After the test is finished, the PLC can control the pneumatic control valve to open for pressure relief.
Refer to fig. 2. The pressurizing module comprises an air driving assembly, a pressure regulating conveying assembly and a pressure relief assembly, wherein each assembly is integrated in the control cabinet, and the air driving assembly and the pressure relief assembly are respectively arranged at two ends of the pressure regulating conveying assembly. The pressurizing module is integrated with the measuring and controlling module through the electric proportional valve, the sensor assembly and the measuring and controlling module, so that stepped pressure increasing, stepped pressure maintaining and delayed pressure releasing are realized.
The air-driven component is used for pressurizing the liquid medium and then injecting the liquid medium into the test piece through the pressure regulating conveying component, and comprises a pressure regulating valve, an air control valve, an electromagnetic valve and a high-pressure pump which are communicated through a high-pressure hose; the input end of the pressure regulating valve is connected with an air source, the air source switch is connected with the electromagnetic valve in parallel, the two ends of the air source switch are respectively connected with the output end of the pressure regulating valve and the input end of the high-pressure pump, and the output end of the high-pressure pump is connected with the inlet of the pressure regulating conveying assembly. The electromagnetic valve is connected with the PLC and used for controlling the opening and closing and the flow of the pneumatic control valve.
The pressure regulating conveying assembly comprises a liquid flow pipeline, a safety valve, a sensor assembly, an electric proportional valve and a pneumatic control valve, wherein the sensor assembly, the electric proportional valve and the pneumatic control valve are arranged on the liquid flow pipeline in a serial connection mode, and the sensor assembly, the electric proportional valve and the pneumatic control valve are all connected with the measurement and control module. The sensor assembly comprises a first sensor and a second sensor, the first sensor is connected with a PLC (programmable logic controller) in the measurement and control module and is used for collecting the initial pressure of the pipeline under the action of the air drive assembly, namely the output pressure of the high-pressure pump, and feeding back the initial pressure to the computer; the electric proportional valve is connected with the PLC and used for adjusting the pressurizing speed and the pressure and realizing step boosting and step pressure maintaining; the pneumatic control valve is connected with the PLC through the electromagnetic valve, so that fine adjustment of the medium pressure is realized, and the output test pressure value is ensured to be accurate and reliable. And a second sensor is arranged between the pneumatic control valve and the high-pressure outlet of the liquid flow pipeline, the second sensor is used for collecting the actual pressure value controlled and regulated by the measurement and control module and feeding back the actual pressure value to the measurement and control module, the actual pressure value is compared with a test pressure value preset through a man-machine interaction port by the measurement and control module, and when the actual pressure value is identical with the preset test pressure value, the measurement and control module can control the pneumatic control valve to open and output high-pressure water.
The pressure relief assembly is arranged between the electric proportional valve and the pneumatic control valve on the pressure regulating conveying assembly and comprises a liquid flow pipeline, the pneumatic control valve and an electromagnetic valve; the pneumatic control valve is arranged on the liquid flow pipeline and is connected with the PLC controller of the measurement and control module through the electromagnetic valve. After the test is finished, the PLC can control the pneumatic control valve to be opened, and pressure relief work is completed.
In the embodiment, the liquid flow pipeline adopts a high-pressure-resistant stainless steel pipe.
The assembly module is used for installing and dismantling a test piece and comprises a water pressure container, a stainless steel workbench, a vice, a plug-in quick-change adapter, an electric assembly tool, a balancer for hanging the tool, a self-service mobile vehicle for transferring large-sized tools and the like, wherein the water pressure container, the stainless steel workbench, the vice, the plug-in quick-change adapter and the electric assembly tool are matched with the test piece structure and the bearing capacity. The water pressure container with the diameter larger than 500mm adopts an ellipsoidal cavity design, and the side surface of the water pressure container is provided with a water inlet. The water pressure container with the diameter of 500mm adopts a step cavity design, and the bottom is provided with a water inlet. The water pressure container and the test piece are in an end face sealing mode, a sealing ring groove is formed in the end face of the water pressure container, a silicon rubber sealing ring is arranged in the sealing ring, and a layer of butter is uniformly smeared on the sealing ring during installation, so that the test piece is ensured to be installed in the water pressure container and is not leaked in the water pressure test process under the normal pressure condition.
The process for carrying out the pressure test on the test piece by adopting the automatic control hydraulic test device comprises the following steps:
step 1, preparing before a test;
before the hydraulic test, the hydraulic container is firstly arranged on the vice and is clamped; and then the tested piece is connected with the port of the water pressure container in a sealing way, and then the high-pressure-resistant stainless steel pipe is connected with the water inlet of the water pressure container through the quick-change plug adapter, so that each valve and water source of the pressurizing system are opened.
And 2, inputting test parameters such as a pressure value, dwell time, pressurizing rate and the like into a computer human-computer interface according to test requirements, starting a pressurizing module and a measurement and control module, and controlling to open all electromagnetic valves in the pressurizing module through a PLC.
Step 3, injecting clean tap water into a water pressure container in the assembly module and exhausting through a pipeline, starting an air-driven pump after the exhaust is finished, pressurizing an aqueous medium by the air-driven pump, collecting a pressure signal in the pipeline by a first sensor, feeding back an initial pressure value (namely, the output pressure of a high-pressure pump) to a computer control system, controlling the opening of an electric proportional valve by a computer, and adjusting the pressurizing speed and the pressure;
step 4, the second sensor collects pressure signals in the pipeline and feeds the pressure signals back to the computer, and the PLC controls the electromagnetic valve and the pneumatic control valve on the pressure regulating and conveying assembly to realize fine adjustment of water pressure, so that the water pressure in the pipeline reaches a pressure value required by a test; a pneumatic control valve in the pressure regulating conveying assembly is opened, and high-pressure water is injected into a test piece through a pipeline to maintain pressure;
and 5, after the pressure maintaining is finished, the computer receives information feedback, controls a pipeline in the pressure relief assembly to drive the electromagnetic valve, and opens the pneumatic control valve to finish pressure relief.
The utility model can carry out a pressure test within the range of 0-100 MPa, and the PLC is used for controlling the electric proportional valve to automatically adjust the supercharging speed and the pressure, so that the output pressure is quickly adjustable and controllable, and the technical requirements of different test flows are met; the electric proportional valve is used for controlling the output of the driving gas pressure, so that the stepped boosting and the stepped pressure maintaining are realized, the air inlet pressure of the air-driven pump is controlled, and the accurate output of the set pressure is realized; the pressure increasing and reducing speed is controlled by the computer, the test result is accurate, the reliability is high, the sensor can collect and store the pressure generated in the test in real time and feed back to the computer to form and store a real-time hydraulic test curve, the test curve can be checked at any time after the test is realized, and the test result has better traceability; the utility model is suitable for the production types with multiple specifications of tested pieces, short dwell time and high precision requirement, and is especially suitable for the requirements of fast rhythm and mass production.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model.
Claims (10)
1. An automatic control hydraulic test device is characterized by comprising a pressurizing module, a measurement and control module and an assembly module;
the assembly module is used for mounting and dismounting a test piece;
the measurement and control module is connected with the pressurizing module and used for controlling the pressurizing module to pressurize the liquid medium;
the pressurizing module comprises an air drive assembly, a pressure regulating conveying assembly and a pressure relief assembly; the air drive assembly and the pressure release assembly are respectively arranged at two ends of the pressure regulating conveying assembly, and the air drive assembly is used for pressurizing the liquid medium and then injecting the liquid medium into the test piece through the pressure regulating conveying assembly;
the pressure regulating conveying assembly comprises a liquid flow pipeline, a safety valve, a sensor assembly, an electric proportional valve and a pneumatic control valve, wherein the sensor assembly, the electric proportional valve and the pneumatic control valve are arranged on the liquid flow pipeline in a serial connection mode, and the sensor assembly, the electric proportional valve and the pneumatic control valve are all connected with the measurement and control module;
the sensor assembly is used for collecting pressure information in the liquid flow pipeline and feeding the pressure information back to the measurement and control module.
2. The automated controlled hydrostatic test unit of claim 1, wherein the pneumatic assembly comprises a pressure regulating valve, a gas source switch, a solenoid valve, and a high pressure pump, in communication via a high pressure hose; the input end of the pressure regulating valve is connected with an air source, the air source switch is connected with the electromagnetic valve in parallel, the two ends of the air source switch are respectively connected with the output end of the pressure regulating valve and the input end of the high-pressure pump, and the output end of the high-pressure pump is connected with the inlet of the pressure regulating conveying assembly.
3. The automated controlled hydrostatic test unit of claim 1, wherein the pressure relief assembly is disposed on the pressure regulating delivery assembly between an electrical proportional valve and a pneumatic control valve, the pressure relief assembly comprising a fluid flow line, a pneumatic control valve, and a solenoid valve; the pneumatic control valve is arranged on the liquid flow pipeline and is connected with the measurement and control module through the electromagnetic valve; after the hydraulic test is finished, the pneumatic control valve of the pressure relief assembly can be opened for pressure relief under the control of the measurement and control module.
4. The automated controlled hydrostatic test unit of claim 1, wherein the sensor assembly includes a first sensor and a second sensor; the first sensor is positioned between the safety valve and the electric proportional valve and is used for collecting the output pressure of the gas drive assembly and feeding the output pressure back to the measurement and control module; the second sensor is arranged between the pneumatic control valve and the high-pressure outlet of the liquid flow pipeline, and is used for collecting the test pressure value after being controlled and regulated by the measurement and control module and feeding back the test pressure value to the measurement and control module.
5. The automated controlled hydrostatic test unit of any one of claims 1-4, wherein the fluid conduit is a high pressure resistant stainless steel tube.
6. The automated controlled hydrostatic test unit of claim 1, wherein the assembly module comprises a hydraulic vessel and a plug-in quick-change adapter; the high-pressure outlet of the liquid flow pipeline in the pressure regulating conveying assembly is connected with the water inlet of the water pressure container through the plug-in type quick-change adapter, and the port of the water pressure container is in sealing connection with the end face of the test piece.
7. The automated controlled hydrostatic test unit of claim 6, wherein the hydrostatic container has an ellipsoidal cavity therein and a water inlet in the sidewall.
8. The automated control hydrostatic test unit of claim 6, wherein the hydrostatic container is internally provided with a stepped cavity, and a water inlet is formed in the bottom.
9. The automated controlled hydrostatic test unit of claim 7 or 8, wherein the end face of the hydrostatic container is formed with a sealing ring groove, a sealing ring is arranged in the groove, and butter is coated on the sealing ring.
10. The automated controlled hydrostatic test unit of claim 1, wherein the measurement and control module comprises a PLC controller and a human-machine interface port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284292.7U CN219737120U (en) | 2023-05-25 | 2023-05-25 | Automatic change control hydrostatic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284292.7U CN219737120U (en) | 2023-05-25 | 2023-05-25 | Automatic change control hydrostatic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219737120U true CN219737120U (en) | 2023-09-22 |
Family
ID=88051908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321284292.7U Active CN219737120U (en) | 2023-05-25 | 2023-05-25 | Automatic change control hydrostatic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219737120U (en) |
-
2023
- 2023-05-25 CN CN202321284292.7U patent/CN219737120U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100387941C (en) | Device and method for detecting water flow of gas tubine cooling blade | |
| CN104454493B (en) | Water pump testing system and method | |
| CN107900039A (en) | Hydraulic system cleaning device | |
| CN219737120U (en) | Automatic change control hydrostatic test device | |
| CN201464140U (en) | Device by using air pressure to detect air tightness of product | |
| CN107695792A (en) | A kind of control method of intelligent fixture | |
| CN206440442U (en) | A kind of container leakage detection apparatus | |
| CN101201287A (en) | Device for testing product air leakage | |
| CN214040625U (en) | Ship air valve detection simulation equipment capable of meeting requirements of different valves | |
| CN102564791B (en) | Pressure regulating property testing system of gas pressure regulator | |
| CN215179252U (en) | Fire extinguisher water pressure strength testing machine | |
| CN215115641U (en) | Servo hydraulic detection test system | |
| CN114082362A (en) | Automatic gas distribution device and method for mixed gas | |
| CN114012612A (en) | Shot blasting flow control device | |
| CN112880929B (en) | Rapid automatic detection method for air tightness of aviation complex pipeline | |
| CN208334083U (en) | The online high pressure constant-pressure test system of rubber hose | |
| CN210573414U (en) | Radiator blasting test system | |
| CN211013484U (en) | Pneumatic regulating valve testing device | |
| CN209477858U (en) | A kind of auxiliary detection device of clamping workpiece | |
| CN103207053B (en) | Windshield Washer leakage inspector | |
| CN104833459B (en) | A kind of automobile pipe fitting impermeability leakage detection apparatus and leak hunting method thereof | |
| CN209231791U (en) | A kind of 400MPa extra-high loading device | |
| CN209265287U (en) | A kind of quick loading device of 400MPa extra-high | |
| CN216621601U (en) | Double-circuit batch intelligent calibrating device for barometer and oil pressure meter | |
| CN211347275U (en) | Automatic pressure detection device for cavity workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |