CN209446095U - The pressure resistance of dish-washing machine components and air-tightness testing device - Google Patents

Abstract

This application discloses a kind of dish-washing machine components pressure resistance and air-tightness testing devices, including industrial personal computer, water tank, high-pressure plunger pump, low-lift pump, pressure duct, low pressure line, high pressure check valve and high-pressure solenoid valve, in which: high-pressure plunger pump, low-lift pump, high pressure check valve and high-pressure solenoid valve and industrial personal computer are electrically connected；High-pressure plunger pump and low-lift pump are connected to by different connecting pipelines with water tank, the first end of pressure duct is connected to the output end of high-pressure plunger pump, the first end of low pressure line is connected to the output end of low-lift pump, the second end of pressure duct and the second end of low pressure line are connected to common interface, and common interface is for connecting components to be tested；High pressure check valve and high-pressure solenoid valve are mounted on the second end of low pressure line.By installing high pressure check valve and high-pressure solenoid valve at common interface, same set of equipment is shared in Hi-pot test and low voltage experiment, avoids high pressure from influencing the crossfire of low pressure line, reduces production cost, improve testing efficiency.

Description

The pressure resistance of dish-washing machine components and air-tightness testing device

Technical field

The utility model belongs to pressure resistance and air-tightness testing field, is related to a kind of dish-washing machine components pressure resistance and air-tightness is surveyed Try equipment.

Background technique

Dish-washing machine is electric appliance common in daily life, before dish-washing machine factory, is needed to components each in dish-washing machine Pressure resistance and air-tightness tested.

When tradition tests the pressure resistance and the performance of air-tightness of dish-washing machine components by manual type, need tester will High-pressure pump accesses to components to be tested, and the components that other tests need are installed, using high-pressure pump to be measured The components of examination are pumped into high pressure water flow, and then realize the pressure resistance to components to be tested and air tightness test；Then again by low pressure Pump accesses to components to be tested, and the components that other tests need are installed, using low-lift pump to be tested Components are pumped into low pressure water flow, and then realize the low voltage experiment to components to be tested.Due to current Hi-pot test and low pressure Test uses two sets of different equipment, and production cost is higher, and cumbersome, and testing efficiency is lower.

Utility model content

In order to solve Hi-pot test in the related technology and low voltage experiment using two sets of different equipment, production cost is higher, And cumbersome, the lower problem of testing efficiency, this application provides a kind of dish-washing machine components pressure resistances and air tightness test to set Standby, specific technical solution is as follows:

It include industry control this application provides a kind of dish-washing machine components pressure resistance and air-tightness testing device, the test equipment Machine, water tank, high-pressure plunger pump, low-lift pump, pressure duct, low pressure line, high pressure check valve and high-pressure solenoid valve, in which: high pressure Plunger pump, low-lift pump, high pressure check valve and high-pressure solenoid valve are electrically connected with industrial personal computer；High-pressure plunger pump and low-lift pump pass through Different connecting pipelines are connected to water tank, and the first end of pressure duct is connected to the output end of high-pressure plunger pump, pressure duct Second end is connected to common interface, and the first end of low pressure line is connected to the output end of low-lift pump, the second end of low pressure line with Common interface connection, common interface is for connecting components to be tested；High pressure check valve and high-pressure solenoid valve are mounted on low pressure The second end of pipeline.

By the way that common interface is arranged in pressure duct and low pressure line, and high pressure check valve and height are installed at common interface Pressure electromagnetic valve ensure that while share same set of equipment in Hi-pot test and low voltage experiment, avoid high pressure to low pressure line Crossfire influence, reduce production cost, improve testing efficiency.

Optionally, test equipment provided by the present application further includes the first high pressure water circuit control solenoid valve and the second high pressure water circuit Solenoid valve is controlled, the first high pressure water circuit control solenoid valve and the second high pressure water circuit control solenoid valve are connected on pressure duct, and It is electrically connected with industrial personal computer.

Solenoid valve is controlled by two concatenated high pressure water circuits of setting, one of solenoid valve is avoided to break down, it is another A solenoid valve can run well, and guarantee the normal operation of test equipment.

Optionally, test equipment provided by the present application further includes high-pressure plunger pump pressure-regulating valve, high-pressure plunger pump pressure-regulating valve peace It is electrically connected on high-pressure plunger pump, and with industrial personal computer.

By the way that high-pressure plunger pump pressure-regulating valve is arranged, pressure regulation can be carried out to high-pressure plunger pump, meet and tested under different pressures The pressure resistance of water pipe and airtight implementations enrich test data.

Optionally, test equipment provided by the present application further includes plunger pump drive motor, high-pressure water inlet solenoid valve and plunger Pump relief valve, plunger pump drive motor, high-pressure water inlet solenoid valve and plunger pump relief valve are electrically connected with industrial personal computer, plunger pump Drive motor and high-pressure plunger pump are electrically connected, to drive high-pressure plunger pump work, high-pressure water inlet solenoid valve be mounted on water tank with On connecting pipeline between high-pressure plunger pump, plunger pump relief valve is mounted on the output port of high-pressure plunger pump.

By the way that plunger pump relief valve is arranged, guarantees that the pressure of high-pressure plunger pump conveying is not higher than rated pressure, guarantee test The safety of equipment.

Optionally, test equipment provided by the present application further includes flow control valve, and flow control valve is mounted on water tank and height On connecting pipeline between hydraulic plunger pump, and it is electrically connected with industrial personal computer.

By the way that flow control valve is arranged, the flow for entering to high-pressure plunger pump is adjusted, guarantees the normal fortune of high-pressure plunger pump Turn.

Optionally, test equipment provided by the present application further includes heater water tank and liquid level sensor, liquid level sensor peace Mounted in tank inner wall, for incuding the water level in water tank, heater water tank is mounted on the bottom of tank inner wall, for in water tank Water heated, heater water tank and liquid level sensor are electrically connected with industrial personal computer.

By the way that heater water tank is arranged, the water in water tank can be heated, to meet to be tested zero under low voltage situations The high temperature resistant testing requirement of component；In addition, can perceive the water level in water tank by the way that liquid level sensor is arranged, water level information can be with As whether to water tank reference for continuing heating, to water tank dry combustion method when avoiding cistern water level too low；And water level information can also be used The reference for making whether to carry out water tank moisturizing is continued with guarantee to components to be measured when cistern water level is lower to water tank moisturizing The possibility tested.

Optionally, test equipment provided by the present application further includes test frame and safety door latch, and water is covered in outside test frame Outside case, high-pressure plunger pump, low-lift pump, pressure duct, low pressure line, high pressure check valve and high-pressure solenoid valve, installation door lock installation On the doorframe of test frame, safety door latch generates shutdown signal after doorframe closing, and safety door latch and industrial personal computer are electrically connected.

By the way that test frame is arranged, damage of the equipment in test frame when occurring dangerous to tester is avoided, is led to The shutdown signal for crossing setting safety door latch, determines machine at the beginning of entire testing process, avoids not closing in the doorframe of test frame It is tested when closing, may cause the possibility of injury to tester.

Optionally, test equipment provided by the present application further includes high-pressure pressure sensor and low-pressure sensor, high pressure Pressure sensor is mounted on pressure duct, and low-pressure sensor is mounted on low pressure line, high-pressure pressure sensor and low Pressure pressure sensor is electrically connected with industrial personal computer.

By setting high-pressure pressure sensor and low-pressure sensor respectively to the pressure in pressure duct and low pressure line Power is tested, and is recorded and is analyzed for industrial personal computer, the corresponding pass of confirmation pressure value and components pressure resistance to be measured and air-tightness System enriches test data.

Optionally, test equipment provided by the present application further includes mechanical pressure gauge, and mechanical pressure gauge is mounted on common interface On, show the hydraulic pressure value at common interface.

By the way that mechanical pressure gauge is arranged, for the pressure condition of tester's real time inspection bulletin interface, so as to tester Member controls industrial personal computer according to pressure condition to adjust some test parameters.

Optionally, test equipment provided by the present application further includes automatic-discharging solenoid valve, and automatic-discharging solenoid valve is mounted on It on pressure duct, and is electrically connected with industrial personal computer, pressure release processing is carried out to the pressure in pressure duct.

By installing automatic-discharging solenoid valve on pressure duct, pressure release can be carried out to pressure duct after being completed Processing, avoids the explosion of pressure duct, improves the service life of pressure duct.

Optionally, test equipment provided by the present application further includes water supply solenoid valve, water pipe and water route filter, moisturizing Pipeline is connected to water tank cavity, and water supply solenoid valve and water route filter are installed on water pipe, water supply solenoid valve also with work Control machine is electrically connected.

Water tank is automatically replenished by setting water supply solenoid valve, water pipe, by installing water on water pipe Pipe filter guarantees safety when high-pressure plunger pump work.

Optionally, test equipment provided by the present application further includes automatic pollution discharge solenoid valve and sewage pipe, in sewage pipe water tank Chamber connection, automatic pollution discharge solenoid valve are mounted on sewage pipe, and automatic pollution discharge solenoid valve is also electrically connected with industrial personal computer.

By setting automatic pollution discharge solenoid valve and sewage pipe, the automatic pollution discharge to water tank is realized after being completed, is saved The operation of artificial blowdown, simplifies testing process.

It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited Utility model.

Detailed description of the invention

The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model Embodiment, and be used to explain the principles of the present invention together with specification.

Fig. 1 is that the structure of the pressure resistance of dish-washing machine components and air-tightness testing device that provide in the application one embodiment is shown It is intended to；

Fig. 2 is that the front of the pressure resistance of dish-washing machine components and air-tightness testing device that provide in the application one embodiment shows It is intended to.

Wherein, appended drawing reference is as follows:

1, industrial personal computer；1a, industry control cabinet；2, water tank；3, high-pressure plunger pump；4, low-lift pump；5, high pressure check valve；6, high pressure Solenoid valve；7, fixing tool；8,9,10: test valve；11,12,13,14,15,16,17,18: blocking tooling；19, safety door latch； 19a, test frame；20, the first high pressure water circuit controls solenoid valve；21, the second high pressure water circuit controls solenoid valve；22, high-pressure plunger Pump pressure regulator valve；23, plunger pump drive motor；24, high-pressure water inlet solenoid valve；25, plunger pump relief valve；26, flow control valve； 27, heater water tank；28, liquid level sensor；29, high-pressure pressure sensor；30, low-pressure sensor；31, mechanical pressure Table；32, automatic-discharging solenoid valve；33, water supply solenoid valve；34, water route filter；35, automatic pollution discharge solenoid valve；36, overflow port； 37, status indicator lamp.

Specific embodiment

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.

Fig. 1 is that the structure of the pressure resistance of dish-washing machine components and air-tightness testing device that provide in the application one embodiment is shown It is intended to, Fig. 2 is the dish-washing machine components pressure resistance provided in the application one embodiment and the front signal of air-tightness testing device Figure, dish-washing machine components pressure resistance provided by the present application and air-tightness testing device at least may include industry control combined with Figure 1 and Figure 2, Machine 1, water tank 2, high-pressure plunger pump 3, low-lift pump 4, pressure duct, low pressure line, high pressure check valve 5 and high-pressure solenoid valve 6.

The connection and installation relation of above-mentioned each component are as follows: high-pressure plunger pump 3, low-lift pump 4, high pressure check valve 5 and high-voltage electricity Magnet valve 6 is electrically connected with industrial personal computer 1；High-pressure plunger pump 3 and low-lift pump 4 are connected to by different connecting pipelines with water tank 2, high The first end on pressure pipe road is connected to the output end of high-pressure plunger pump 3, and the second end of pressure duct is connected to common interface, low-voltage tube The first end on road is connected to the output end of low-lift pump 4, and the second end of low pressure line is connected to common interface, and common interface is for connecing Lead to components to be tested；High pressure check valve 5 and high-pressure solenoid valve 6 are mounted on the second end of low pressure line.

In actual test, components to be tested may include water plate in dish-washing machine, water softener, inner inlet pipe, External water inlet pipe, drainpipe etc., by being pumped into high pressure water or high-temperature low-pressure water to these components, to test these components Pressure-resistant and airtight implementations, for the ease of being installed to these devices to be tested, dish-washing machine components provided by the present application Pressure resistance and air-tightness testing device further include rack, and the fixing tool 7 for installing tested device is arranged on the rack.

More accurate test data in order to obtain usually successively tests a selected components, at this time Then need by the water inlet of the components by common interface be connected to, and each components water inlet setting test valve (8, 9,10), these test valves are connected to industrial personal computer 1, and the test valve for opening some components water inlet is selected by industrial personal computer 1, with The components are tested.In addition, needing to obtain the pressure resistance of each components and airtight implementations by the defeated of each components Outlet obstruction, so that hydropexis is in components to be tested, to test components to be tested by injection high pressure water or high-temperature low-pressure When water, the pressure resistance of components and airtight implementations.Therefore, the equipped at outlet port of each components be provided with blocking tooling (11, 12,13,14,15,16,17,18).

In practical applications, the model and size of components may be different, for the delivery outlet of each components, Ke Yixuan With the blocking tooling of different model and size, to be matched with the delivery outlet for the components to be blocked.

Industrial personal computer 1 provided herein is typically mounted on industry control cabinet 1a, industry control cabinet 1a and test equipment its The separation of his component, only by circuit communication, in order to tester when operating industrial personal computer 1 far from other portions in test equipment Part guarantees the personal safety of tester.

In one possible implementation, test equipment provided by the present application can also include test frame 19a and peace Air cock lock 19, test frame 19a covers in water tank 2, high-pressure plunger pump 3, low-lift pump 4, pressure duct, low pressure line, high pressure list outside To outside valve 5 and high-pressure solenoid valve 6, safety door latch 19 is mounted on the doorframe of test frame 19a, and safety door latch 19 is closed in doorframe After generate shutdown signal, safety door latch 19 and industrial personal computer 1 are electrically connected.

Test equipment installation and working stage, by be arranged test frame 19a, in addition in test equipment industrial personal computer 1, Power supply etc. is mounted on other than the component on industry control cabinet 1a, remaining test component is closed in test frame 19a.It is optional , bulletproof glass is installed on test frame 19a, in the case where guaranteeing that tester can watch internal unit, is guaranteed The safety of tester when components explosion.

Therefore, by setting test frame and safety door latch 19, when avoiding the equipment appearance danger in test frame Damage to tester determines machine at the beginning of entire testing process, avoids by the way that the shutdown signal of safety door latch 19 is arranged It is tested when the doorframe of test frame is not turned off, may cause the possibility of injury to tester.

In actual test, the fluency of water flow is very important in the pressure duct under high pressure conditions, if high pressure High pressure water flow circulation in pipeline is unsmooth, then the explosion of pressure duct is easy to cause, because in order to protect pressure duct, the application The test equipment of offer can also include the first high pressure water circuit control solenoid valve 20 and the second high pressure water circuit controls solenoid valve 21, the One high pressure water circuit control solenoid valve 20 and the second high pressure water circuit control solenoid valve 21 are connected on pressure duct, and and industrial personal computer 1 is electrically connected.

In this way, controlling solenoid valve by two concatenated high pressure water circuits of setting, one of solenoid valve is avoided to break down, Another solenoid valve can run well, and guarantee the normal operation of test equipment.

Test equipment provided by the present application can also include high-pressure plunger pump pressure-regulating valve 22, and high-pressure plunger pump pressure-regulating valve 22 is pacified It is electrically connected on high-pressure plunger pump 3, and with industrial personal computer 1.

During the test, the pressure of high-pressure plunger pump 3 can be adjusted, at this point, industrial personal computer according to actually required pressure 1, which can trigger high-pressure plunger pump pressure-regulating valve 22, carries out pressure regulation operation.

By the way that high-pressure plunger pump pressure-regulating valve 22 is arranged, pressure regulation can be carried out to high-pressure plunger pump 3, meet and surveyed under different pressures The pressure resistance and airtight implementations for trying water pipe, enrich test data.

Test equipment provided by the present application can also include plunger pump drive motor 23, high-pressure water inlet solenoid valve 24 and plunger Pump relief valve 25, plunger pump drive motor 23, high-pressure water inlet solenoid valve 24 and plunger pump relief valve 25 electrically connect with industrial personal computer 1 It connecing, plunger pump drive motor 23 and high-pressure plunger pump 3 are electrically connected, to drive high-pressure plunger pump 3 to work, high-pressure water inlet solenoid valve 24 are mounted on the connecting pipeline between water tank 2 and high-pressure plunger pump 3, and plunger pump relief valve 25 is mounted on high-pressure plunger pump 3 Output port.

By the way that plunger pump relief valve 25 is arranged, guarantees that the pressure that high-pressure plunger pump 3 conveys is not higher than rated pressure, guarantee to survey Try the safety of equipment.

In actual test demand, the pressure resistance and airtight implementations of components under different flow can be tested, for this Testing requirement, test equipment provided by the present application can also include flow control valve 26, flow control valve 26 be mounted on water tank 2 with On connecting pipeline between high-pressure plunger pump 3, and it is electrically connected with industrial personal computer 1.

In this way, adjusting the flow for entering to high-pressure plunger pump 3 by setting flow control valve 26, guarantee high-pressure plunger pump 3 Normal operation, and under available different flow components pressure resistance and airtight implementations.

Water tank 2 provided by the present application can be the insulated water tank of stainless steel, and test equipment provided by the present application can also wrap Heater water tank 27 and liquid level sensor 28 are included, liquid level sensor 28 is mounted on 2 inner wall of water tank, for incuding the water in water tank 2 Position, heater water tank 27 is mounted on the bottom of 2 inner wall of water tank, for being heated to the water in water tank 2,27 He of heater water tank Liquid level sensor 28 is electrically connected with industrial personal computer 1.

In one possible implementation, liquid level sensor 28 is used to perceive water level in water tank 2, and by water level information It is sent to industrial personal computer 1, industrial personal computer 1 determines a need for the moisturizing into water tank 2 according to water level information.

Test equipment provided by the present application can also include the temperature sensor for being mounted on 2 inner wall of water tank, temperature sensor Industrial personal computer 1 is sent to for perceiving the water temperature in water tank 2, and by water temperature information.Industrial personal computer 1 determines whether need according to water temperature information Water in water tank 2 heated, such as need to heat, then sent heating instructions to heater water tank 27, added with triggering water tank Hot device 27 is heated；And when determining that the water temperature in water tank 2 reaches predetermined water temperature according to water temperature information, to heater water tank 27 It sends and stops heating instructions, stop heating to trigger heater water tank 27.

And if need to heat according to water temperature information judgement, but determine the water level in water tank 2 lower than pre- according to water level information When determining water level, then heating instructions are not sent to heater water tank 27, or stop to the transmission of heater water tank 27 heated Only heating instructions.

In this way, can be heated to the water in water tank 2, by setting heater water tank 27 to meet under low voltage situations The high temperature resistant testing requirement of components to be tested；In addition, the water level in water tank 2 can be perceived by the way that liquid level sensor 28 is arranged, Whether water level information may be used as to the reference for continuing heating of water tank 2, to 2 dry combustion method of water tank when avoiding 2 water level of water tank too low；And water Position information is also used as the reference of moisturizing whether is carried out to water tank 2, when 2 water level of water tank is lower to 2 moisturizing of water tank, to guarantee Continue the possibility tested components to be measured.

In actual test demand, need to record the pressure condition in pressure duct and low pressure line and components to be measured The corresponding relationship of pressure-resistant and airtight implementations, in order to analyze the pressure resistance of components to be measured and airtight implementations, for This testing requirement, test equipment provided by the present application can also include high-pressure pressure sensor 29 and low-pressure sensor 30, high-pressure pressure sensor 29 is mounted on pressure duct, and low-pressure sensor 30 is mounted on low pressure line, high-pressure Sensor 29 and low-pressure sensor 30 are electrically connected with industrial personal computer 1.

High-pressure pressure sensor 29 can sense the pressure value in pressure duct in real time, and pressure value is conveyed to industry control Machine 1 is recorded by industrial personal computer 1；Similar, low-pressure sensor 30 can sense the pressure in low pressure line in real time Value, and pressure value is conveyed to industrial personal computer 1, it is recorded by industrial personal computer 1.

By setting high-pressure pressure sensor 29 and low-pressure sensor 30 respectively in pressure duct and low pressure line Pressure tested, recorded and analyzed for industrial personal computer 1, confirm pressure value and components pressure resistance and air-tightness to be measured pair It should be related to, enrich test data.

In actual test, tester in need checks the demand of pressure value on components to be measured, in view of this, this Shen The test equipment that please be provided can also include mechanical pressure gauge 31, and mechanical pressure gauge 31 is installed on the common interface, shown public The hydraulic pressure value of interface.

In this way, the pressure condition of interface is announced for tester's real time inspection by setting mechanical pressure gauge 31, so as to Tester controls industrial personal computer 1 according to pressure condition to adjust some test parameters.

Test equipment provided by the present application can also include automatic-discharging solenoid valve 32, and automatic-discharging solenoid valve 32 is mounted on It on pressure duct, and is electrically connected with industrial personal computer 1, pressure release processing is carried out to the pressure in pressure duct.

In order to ensure the safety and service life of pressure duct, need after being completed to the pressure in pressure duct into Row pressure release, therefore, after being completed, industrial personal computer 1 issues open command to automatic-discharging solenoid valve 32, to trigger automatic-discharging Solenoid valve 32 is opened, and is realized and is handled the pressure release in pressure duct.

It as the above analysis, can be after being completed by installing automatic-discharging solenoid valve 32 on pressure duct Pressure release processing is carried out to pressure duct, the explosion of pressure duct is avoided, improves the service life of pressure duct.

Before testing, it is necessary first to be filled the water into water tank 2, during actual test, with constantly to different zero Component supplies water, and the water level in water tank 2 can be gradually reduced, it is also desirable to be filled the water into water tank 2, therefore, test provided by the present application is set Standby can also include water supply solenoid valve 33, water pipe and water route filter 34, and water pipe is connected to 2 inner cavity of water tank, moisturizing Solenoid valve 33 and water route filter 34 are installed on water pipe, and water supply solenoid valve 33 is also electrically connected with industrial personal computer 1.

It is high if there are more impurity in water since high-pressure plunger pump 3 is more demanding to the degree of purity of water in use Hydraulic plunger pump 3 is then easy to appear failure, therefore, in order to ensure the work safety of high-pressure plunger pump 3, in water pipe in the application Upper installation water route filter 34, to be filtered purification to the water flowed into water tank 2.

In this way, being automatically replenished by setting water supply solenoid valve 33, water pipe to water tank 2, by water pipe Upper installation water route filter 34 guarantees safety when high-pressure plunger pump 3 works.

After being completed, it usually needs emptied to the water in water tank 2, test provided by the present application is set in view of this Standby can also include automatic pollution discharge solenoid valve 35 and sewage pipe, the connection of 2 inner cavity of sewage pipe water tank, the installation of automatic pollution discharge solenoid valve 35 On sewage pipe, automatic pollution discharge solenoid valve 35 is also electrically connected with industrial personal computer 1.

In general, industrial personal computer 1 can issue open command to automatic pollution discharge solenoid valve 35 after being completed, it is automatic to trigger Blowoff electromagnetic valve 35 is opened, and sewage pipe is connected, and the water in water tank 2 is emptied.Optionally, the bottom of sewage pipe and 2 inner cavity of water tank Portion's connection, so as to empty the water in water tank 2.

In this way, realizing the automatic row to water tank 2 after being completed by setting automatic pollution discharge solenoid valve 35 and sewage pipe Dirt saves the operation of artificial blowdown, simplifies testing process.

In addition, in order to avoid in water tank 2 water it is full after continue moisturizing when, to the pressure that 2 inner wall of water tank generates, the application is provided Test equipment can also include overflow port 36, which is arranged in the top or upper end of water tank 2, when in water tank 2 When water level reaches the position of overflow port 36, the water in water tank 2 then flows out from overflow port 36.

Test equipment provided by the present application can also include status indicator lamp 37, and status indicator lamp 37 and industrial personal computer 1 are electrically Connection, is used to indicate the working condition of test equipment.Optionally, status indicator lamp 37 can be bicolored light or tri coloured lantern.For example, In normal work, status indicator lamp 37 is green to test equipment；For test equipment in failure, status indicator lamp 37 is yellow.

It should be noted that " first ", " second " documented by the application have same technique feature for referring to Different objects, rather than limit ordinal characteristics.

In conclusion dish-washing machine components pressure resistance provided by the present application and air-tightness testing device, by pressure duct Common interface is set with low pressure line, and high pressure check valve and high-pressure solenoid valve are installed at common interface, ensure that in high pressure While sharing same set of equipment when test and low voltage experiment, avoids high pressure from influencing the crossfire of low pressure line, reduce production Cost improves testing efficiency.

Those skilled in the art will readily occur to this after considering specification and practicing the utility model of utility model here Other embodiments of utility model.This application is intended to cover any variations, uses, or adaptations of the utility model, These variations, uses, or adaptations follow the general principle of the utility model and unpractical new including the utility model The common knowledge or conventional techniques in the art of type.The description and examples are only to be considered as illustrative, this reality It is indicated by the following claims with novel true scope and spirit.

It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right It asks to limit.

Claims (10)

1. a kind of pressure resistance of dish-washing machine components and air-tightness testing device, which is characterized in that the test equipment include industrial personal computer, Water tank, high-pressure plunger pump, low-lift pump, pressure duct, low pressure line, high pressure check valve and high-pressure solenoid valve, in which:

The high-pressure plunger pump, the low-lift pump, the high pressure check valve and the high-pressure solenoid valve are electromechanical with the industry control Property connection；

The high-pressure plunger pump and the low-lift pump are connected to by different connecting pipelines with the water tank, the pressure duct First end is connected to the output end of the high-pressure plunger pump, and the second end of the pressure duct is connected to common interface, described low The first end on pressure pipe road is connected to the output end of the low-lift pump, and the second end of the low pressure line and the common interface connect Logical, the common interface is for connecting components to be tested；

The high pressure check valve and the high-pressure solenoid valve are mounted on the second end of the low pressure line.

2. test equipment according to claim 1, which is characterized in that the test equipment further includes the first high pressure water circuit control Solenoid valve processed and the second high pressure water circuit control solenoid valve, the first high pressure water circuit control solenoid valve and second high pressure water circuit Control solenoid valve is connected on the pressure duct, and is electrically connected with the industrial personal computer.

3. test equipment according to claim 1, which is characterized in that the test equipment further includes high-pressure plunger pump pressure-regulating Valve, the high-pressure plunger pump pressure-regulating valve are mounted on the high-pressure plunger pump, and are electrically connected with the industrial personal computer.

4. test equipment according to claim 1, which is characterized in that the test equipment further includes plunger pump driving horse It reaches, high-pressure water inlet solenoid valve and plunger pump relief valve, the plunger pump drive motor, the high-pressure water inlet solenoid valve and the column Pump relief valve to be filled in be electrically connected with the industrial personal computer, the plunger pump drive motor and the high-pressure plunger pump are electrically connected, To drive the high-pressure plunger pump work, the high-pressure water inlet solenoid valve is mounted between the water tank and the high-pressure plunger pump Connecting pipeline on, the plunger pump relief valve is mounted on the output port of the high-pressure plunger pump.

5. test equipment according to claim 1, which is characterized in that the test equipment further includes flow control valve, institute It states on the connecting pipeline that flow control valve is mounted between the water tank and the high-pressure plunger pump, and electrical with the industrial personal computer Connection.

6. test equipment according to claim 1, which is characterized in that the test equipment further includes heater water tank and liquid Level sensor, the liquid level sensor are mounted on the tank inner wall, and for incuding the water level in the water tank, the water tank adds Hot device is mounted on the bottom of the tank inner wall, for being heated to the water in the water tank, the heater water tank and institute Liquid level sensor is stated to be electrically connected with the industrial personal computer.

7. test equipment according to claim 1, which is characterized in that the test equipment further includes test frame and safety Door lock covers in the water tank, high-pressure plunger pump, the low-lift pump, the pressure duct, described low outside the test frame Outside pressure pipe road, the high pressure check valve and the high-pressure solenoid valve, the safety door latch is mounted on the doorframe of the test frame On, the safety door latch generates shutdown signal after doorframe closing, and the safety door latch and the industrial personal computer are electrically connected.

8. test equipment according to claim 1, which is characterized in that the test equipment further includes high-pressure pressure sensor And low-pressure sensor, the high-pressure pressure sensor are mounted on the pressure duct, the low-pressure sensor peace On the low pressure line, the high-pressure pressure sensor and the low-pressure sensor electrically connect with the industrial personal computer It connects；

The test equipment further includes mechanical pressure gauge, and the mechanical pressure gauge is mounted on the common interface, described in display Hydraulic pressure value at common interface.

9. test equipment according to claim 1, which is characterized in that the test equipment further includes automatic-discharging electromagnetism Valve, the automatic-discharging solenoid valve are mounted on the pressure duct, and are electrically connected with the industrial personal computer, to the high-voltage tube Pressure in road carries out pressure release processing.

10. any test equipment in -9 according to claim 1, which is characterized in that the test equipment further includes moisturizing Solenoid valve, water pipe and water route filter, the water pipe are connected to the water tank cavity, the water supply solenoid valve and institute It states water route filter to be installed on the water pipe, the water supply solenoid valve is also electrically connected with the industrial personal computer；

The test equipment further includes automatic pollution discharge solenoid valve and sewage pipe, and the connection of water tank cavity described in the sewage pipe is described Automatic pollution discharge solenoid valve is mounted on the sewage pipe, and the automatic pollution discharge solenoid valve is also electrically connected with the industrial personal computer.