CN207717298U - A kind of product protective capacities test equipment - Google Patents
A kind of product protective capacities test equipment Download PDFInfo
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- CN207717298U CN207717298U CN201721923741.2U CN201721923741U CN207717298U CN 207717298 U CN207717298 U CN 207717298U CN 201721923741 U CN201721923741 U CN 201721923741U CN 207717298 U CN207717298 U CN 207717298U
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Abstract
The utility model discloses a kind of product protective capacities test equipments, including support device, the sealing device for accommodating test product is provided in support device, sealing device includes water tank and tank lid, water tank is tightly connected with tank lid by gripping mechanism, water tank is provided with that air bleeding valve is gentle to connect mouth, and gas connects mouth and is connected with for providing air pressure into water tank and generating inside and outside test product the compressed air source unit of pressure difference, and compressed air source unit is electrically connected electric control gear.The utility model utility model is based on electric control gear and realizes automatic test, and at low cost, occupied space is few, and test method is simple and test is with obvious effects.It need to only can be realized simultaneously by adjusting part or parameter for the test of different protective capacities requirement products, test equipment has very strong flexibility.
Description
Technical field
The product test field that the utility model is related to have protective capacities to require, be related specifically to it is a kind of for starter and
The test equipment of its parts protective capacities test.
Background technology
The product that is required with protective capacities, equipment are generally required to the degree of protection of their shell according to country
The relevant regulations of standard carry out experiment test, are wanted with ensuring that the degree of protection of the product, equipment meets or exceeds national standard
It asks.
Starter and its parts are frequently encountered dust in application environment, muddy, water, machine oil, diesel oil and some corruption
The presence of corrosion solution；If most solid substance and liquid solution can cause machinery into inside starter or its parts
Clamping stagnation, corrosion of metal, the mechanical disorders such as circuit damage.Therefore starter and its parts belong to the production required with protective capacities
Product need to carry out experiment test to its degree of protection,
The test mode and requirement being usually taken are completed based on electrical equipment degree of protection as defined in GB 4208.Foundation
The typical starter and its assembly degree of protection such as IPX6 of the requirement, it is desirable that as follows：
It is sprayed water, and met to by the shell of trial product in all possible direction using standard required standard test nozzle
Following condition：
1. nozzle inside diameter：12.5mm；
2. water flow：(100±5)L/min；
3. hydraulic pressure：It is adjusted according to regulation water flow；
4. the central part of main flow：The circle for being about 120mm from diameter at nozzle 2.5m；
5. every square metre of water spraying time of case surface：More 1min；
6. test period：Minimum 3min；
7. nozzle is to case surface distance：2.5m~3m.
If protection level requirements are IPX7, need to meet claimed below：
Caisson, subject product casing is required to submerge by installation condition as defined in factory using standard, and
Meet following condition：
1. the minimum point of shell of the height less than 850mm, should be less than water surface 1000mm；
2. height is equal to or more than the shell peak of 850mm, water surface 150mm should be less than；
3. duration of test runs 30min；
4. water temperature is not more than 5k with the style temperature difference.
In addition to this kind of Soft pack experiments of sealing performance method is also given in GBT 15171：
1. being put into suitable distilled water in vacuum chamber, sample is fixed on specimen holder, then is dipped in water.This
When, the top of sample must not be less than 25mm at a distance from the water surface.
2. covering the sealing cover of vacuum chamber, exhaust valve is closed, then open vacuum tube valves to vacuum chamber.
3. the leakage situation of observation sample when vacuumizing and during vacuum is kept, depending on it, whether there is or not continuous bubbles to generate.It is single
A discrete bubble is not intended as sample leakage.
4. opening air inlet pipe valve, vacuum chamber is made to be communicated with air, open sealing cover, sample is taken out, by the water on its surface
It cleans, Kaifeng checks inside sample whether there is test water infiltration.
Thus it sees, the test mode being usually taken needs to use different test equipments according to different degree of protection, right
Test equipment requires high.Existing test equipment is flexible poor, and the degree of automation is low, and test method operation difficulty is big, the test period
It is long；And test effect is difficult to intuitive judgment, it is necessary to observe internal state after being disassembled to product.Thus it is more suitable for very
The exemplar of limited quantity carries out in the laboratory of test analysis；It is not particularly suited for testing beat, Flexible Equipment, test automation
Degree, testing cost, the batch production scene that test validity has higher requirements；Poor universality.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model, which solves its technical problem, is, it is proposed that one
Kind product protective capacities test equipment, high degree of automation is easy to operate, versatile, and it is more intuitive to test effect.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of product protective capacities test
Equipment, including：Support device, the support device are provided with the sealing device for accommodating test product, and the sealing device includes
Water tank and tank lid, the water tank are tightly connected with the tank lid by gripping mechanism, the water tank be provided with air bleeding valve and
Gas connects mouth, and the gas connects mouth and is connected with for providing air pressure into the water tank and the generation pressure difference inside and outside the test product
Compressed air source unit, the compressed air source unit are electrically connected electric control gear.
Further, the compressed air source unit includes by motor-driven air pump.
Further, the electric control gear includes main circuit and logic control circuit；
The main circuit includes：Power supply adaptor, with the relay normally open switch of the motor joining for driving the air pump and
The relay for controlling the relay normally open switch, is serially connected with the first relay between the power supply adaptor and the relay
Normal open switch；
The logic control circuit includes：The change-over switch that is serially connected with the power supply adaptor, position switch and
Master control circuit；The master control circuit includes the first circuit parallel with one another, second servo loop, tertiary circuit, the 4th circuit,
Five circuits and the 6th circuit；
First circuit include the second relay normally closed switch and concatenated with the second relay normally closed switch two
Parallel branch, wherein a branch connects first time relay, another branch connects to be controlled by the first time relay
First time relay normally closed switch and the first relay；
The second servo loop includes first pressure control switch, the first relay normally closed switch and the third being serially connected
Relay, the first relay normally closed switch are controlled by first relay；
The tertiary circuit includes that second pressure control switch and first the second relay normally open switch, second pressure
Power control switch and first the second relay normally open switch in parallel after with third relay normally closed switch and the second relay
Device concatenates, and the third relay normally closed switch is controlled by the third relay, the second relay control described second
Relay normally open switchs；
4th circuit includes that second the second relay normally open switch and the 4th relay normally open switch, and second
A second relay normally open switch with after the 4th relay normally open switch in parallel with third relay described in another
Normally closed switch concatenates, and the third relay normally closed switch concatenates three three branches in parallel, and first article of branch connects the 4th relay
Device, Article 2 branch connect second time relay, and Article 3 branch connects the third time relay；
5th circuit includes the second time relay normal open switch being serially connected, the first LED pipe, and described second
Time relay normal open switch is controlled by second time relay；
6th circuit includes the second time relay normally closed switch, second time relay normally closed switch concatenation
There are two parallel branches, a branch to connect the second LED pipe, another branch connects third time relay normal open switch and third
LED pipe.
Further, the first time relay normally closed switch is that on-delay disconnects switch, second time relay
Device normally closed switch is that on-delay disconnects switch, and second time relay normal open switch is on off delay closure switch, institute
Third time relay normal open switch on-delay is stated to be closed and power cut off delay disconnection switch.
Further, the air bleeding valve is electric-controlled type air bleeding valve, and the master control circuit further includes the 7th circuit, the described 7th
Circuit include be serially connected the 5th relay normally open switch and the electric-controlled type air bleeding valve, the 5th circuit further include with
5th relay of the first LED pipe concatenation, the 5th relay control the 5th relay normally open switch.
Further, the electric control gear includes the display box for showing automatically controlled information, and the electric control gear is relay
Control circuit device or programmable integrated circuit device.
Further, the support device includes cabinet, and the electric control gear is set in the cabinet.
Further, it is provided with switching mechanism between the tank lid and the cabinet.
Further, the switching mechanism includes being fixed on the holder of the cabinet, and the rocking arm hinged with the holder, institute
One end is stated to connect with the tank lid, the other end with place mass configuration support is connected, the tank lid or
The rocking arm is connected with handle.
Further, the product protective capacities test equipment further includes cleaning system, and the cleaning system includes control water platform
And air gun.
After using above-mentioned technical proposal, the utility model has the beneficial effects that：
The protective capacities test equipment is simple in structure, and wherein support device, sealing device, compressed air source unit carry for product testing
The testing conditions of high request high standard are supplied.
And the test of product protective capacities is realized based on electric control gear, can realize entire test process automatically,
It operates simpler.And in the short time can intuitive judgment go out whether product meets preassigned requirement, be greatly improved
Test beat；And it is at low cost, occupied space is few, and operation is simple, while only needing to pass through tune for different protective capacities demands
Whole part or parameter can be realized, to enable equipment have very strong flexibility.The equipment is especially suitable for testing beat
There is rigors production scene with test condition.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model product protective capacities test equipment；
Fig. 2 is the test method flow chart using Fig. 1 test equipments；
Fig. 3 is the circuit diagram for the electric control gear for realizing Fig. 2 test methods；
In figure：1- sealing devices, 11- water tanks, 12- display boxes, 13- tank lid, 131- handles, 14- switching mechanisms, 141-
Holder, 142- rocking arms, 15- gripping mechanisms, 16- are supported with object, 2- support devices, 21- cabinets, 22- mobile brackets, 3- cleanings
System, 31- control water platform, and 4- gas connects mouth, 51- knife switches, 52- knife switches, 53- relays, 53a- relay normally opens switch,
54- air pumps, 55- power supply adaptors, 56- position switch, the second relays of 57-, 57a- the second relay normally closed switch 57b-
Two relay normally opens switch, the second relay normally opens of 57c- switch, 58- first time relays, 58a- first time relays
Normally closed switch, 59- first pressures control switch, 60- second pressures control switch, the 4th relays of 61-, the 4th relays of 61a-
Normal open switch, the first relays of 62-, 62a- the first relay normally closed switch, the first relay normally opens of 62b- switch, 63- thirds
Relay, 63a- third relay normally closed switch, second time relays of 64-, 64a- second time relay normal open switch,
64b- second time relay normally closed switch, the 65- third time relays, 65a- third time relay normal open switch, 66-
Five relays, the 5th relay normally opens of 66a- switch, the first LED pipes of 67-, the second LED pipes of 68-, 69- third LED pipes, 70- rows
Air valve, 71- change-over switches.
Specific implementation mode
The utility model is described in further detail in conjunction with attached drawing and its specific embodiment.
In the description of the utility model, it is to be understood that "left", "right", etc. the orientation or positional relationships of descriptions be to be based on
The orientation and position relationship of attached drawing, it is only for convenient for simplifying description, should not be understood as to the utility model utility model
Limitation.
As shown in Figure 1, product protective capacities test equipment mainly include accommodate test product sealing device 1, support it is close
The support device 2 of seal apparatus 1, support device 2 include cabinet 21 and consign the mobile bracket 22 of product to be measured, sealing device 1
Including be fixed on cabinet 21 water tank 11,11 upper cover of water tank be equipped with tank lid 13, be provided with water between water tank 11 and cabinet 21
Case pad.Water tank 11 is tightly connected with tank lid 13 by gripping mechanism 15, i.e., by the clamping screw on gripping mechanism 15 with spiral shell
Tank lid 13 is pressed on water tank 11 by the mode that bolt screws, and ensures that 11 inside of water tank is confined space.Tank lid 13 and cabinet
Switching mechanism 14 is provided between 21.The switching mechanism 14 include be fixed on holder 141 on cabinet 21, and with the holder 141
Hinged rocking arm 142,142 one end of rocking arm are connect with tank lid 13,142 other end of rocking arm and the configuration support 16 for placing mass
Be connected, tank lid 13 or rocking arm 142 be connected with handle 131.
Water tank 11 is additionally provided with that air bleeding valve is gentle to connect mouth 4, and gas connects mouth 4 and is connected in the water tank 11 to sealing device 1
There is provided air pressure and inside and outside test product generate pressure difference compressed air source unit, the compressed air source unit include by motor-driven air pump 54,
The motor of air pump 54 is electrically connected with electric control gear, which is set in cabinet 21, and the display box 12 in electric control gear is set
It is placed on cabinet 21.Electric control gear is control relay circuit device or programmable integrated circuit device, such as PLC, monolithic
Machine realizes logic control；The external tester of electric control gear and actuator, such as sensor, pump, valve, LED, buzzer etc..
The product protective capacities test equipment further includes cleaning system 3, and cleaning system 3 includes control water platform 31 and air gun.
The present embodiment with air pump 54 be vacuum pump when, the specifically used process of the equipment is described below：
As shown in Fig. 2, equipment is in use, product to be measured is placed on mobile bracket 22, by the lock on gripping mechanism 15
Tight bolt is unscrewed, and opens gripping mechanism 15, and tank lid 13 is connected the right side of rocking arm 142 and 141 hinged support of holder, rocking arm 142
It is placed with mass in connected counterweight support 16 on the left of hinged support, in this way when gripping mechanism 15 is opened, in mass 2
The right side of effect lower shake-changing arm 142 drives the tank lid 13 of water tank 11 that can rise to after certain altitude and is limited part limit (limit
Part is not shown in figure), to make tank lid 13 keep nature opening state.
Mobile bracket 22 is held, product to be measured is placed in water tank 11 (or product to be measured is directly put into water tank
In 11), to water tank 11 inside injection select liquid to predetermined altitude H, it is water, predetermined altitude H that liquid is selected in the present embodiment
It is set to the height until when product to be measured is covered with the liquid completely；Tank lid 13 is closed later, engages gripping mechanism 15, and will card
Clamping screw on tight device 15 is tightened, and tank lid 13 and water tank 11 is tightly connected, it is ensured that sealing effect.
Start electric control gear switch, 11 inside of water tank can voluntarily be carried out according to flow shown in Fig. 2.Monitor that pressure exists
When the P1 of predetermined pressure domain, air pump 54 (being selected as vacuum pump) is run to adjust pressure in water tank 11；If the prison in preset time T 1
When measuring pressure and reaching predetermined pressure P2, vacuum pump is out of service, during P2 pressurizes continue, completes automatically controlled after predetermined dwell time T2
Device, which is given, warns " test is completed ", and (unfinished dwell time T2 will continue pressurize test until when completing setting pressurize
Between after T2 system give warn " test is completed "), and the pressure in water tank is restored to predetermined pressure domain P1, is done for lower whorl test
Prepare；
If monitor that pressure is not up to predetermined pressure P2 in preset time T 1, vacuum pump run time is judged at this time
Whether more than T1, when being less than T1, vacuum pump continues to run with pressure regulation, until it is laggard to reach predetermined pressure P2 in preset time T 1
Enter next step flow；If when more than T1, it is possible to which there are line faults, and control vacuum pump is out of service, cannot be introduced into down at this time
One step flow, test terminate in advance；
As needed, can one wheel test continue pressurize P2 during or just at the end of, pass through control circuit device
In non-self-holding switch (normally closed button) reset, the dwell time resets, and recalculates again, i.e., artificial free extended testing system pressurize
Time.
It finds that product surface part has continuous air bubbles to emerge in test process, that is, shows that product protective capacities does not reach and want
It asks, if instead product surface is without continuous air bubbles after testing process, then product protective capacities is qualified.In test process
Duration, atmospheric pressure value, the information such as alarm may be displayed on display box 12.
Test is completed 11 internal pressure of rear water box and is restored, and opens tank lid 13, mobile bracket 22 is taken out, control is placed on
On water platform 31, product surface then is quickly cleaned with equipment such as air guns, cleaning object is flowed out by 31 drain outlet of control water platform.
Test can manually control electric control gear switch or change input information and carry out follow-on test or change batch test.Such as
Fruit has particular demands to preset time therein, pressure set domain, by adjusting control relay circuit setup time relay,
Pressure transducer achieves the goal；Or the setting of certain logic is completed based on programmable integrated circuit device.The thus complete equipment
There is very strong flexibility, equipment cost can be saved under a variety of demands.
A kind of situation of the concrete application in reality：
By sealing space absolute pressure value setting P2=0.06MPa (60KPa), while inside starter or relay product
Atmospheric pressure value is a standard atmospheric pressure, and P0=0.1MPa (100KPa) generates draught head in starter or relay both ends in this way
For P0-P2=0.04MPa；The numerical value can show that absolute pressure is shown in common air gauge by equipment such as such as air gauges
And the difference of atmospheric pressure, air gauge shows that numerical value is P2-P0=-0.04Mpa under above-mentioned case.It is equivalent to the water that 4m depth is provided
Pressure has greatly saved the test space without the 4m depth of waters are provided at the scene.
Fluid flow rate in product hole is directly proportional to hole both ends pressure, when product is wrapped up by liquid completely, passes through system
The pressure higher than level of protection is made, product protection weakness can be aggravated and generate more significant fluid flow phenomena, tested
It, so in a short time can intuitive judgment it can be seen that the undesirable product vulnerable area of protection continuously overflows a large amount of bubbles in journey
Go out whether product meets preassigned requirement, the pressurize testing time, T2 can be reduced within 1 minute, be greatly improved test
Beat.
The present embodiment is based on testing procedure flow shown in Fig. 2 with the relay of the switch controlled with it using a variety of relays
Its control principle is specifically described for control circuit device：
As shown in figure 3, control relay circuit corresponding with this testing process includes main circuit and logic control circuit.
After knife switch 51,52 on main circuit is closed, AC power accesses circuit.Alternating current is converted to by power supply adaptor 55
The DC voltage needed using power supply adaptor 55 is S-50-24 Switching Power Supplies in this example, alternating current is converted to 24V direct currents
Voltage, the direct-flow voltage regulation source as logic control circuit.
For operator, testing process can be completed by a change-over switch 71.When change-over switch 71 is switched on, water
Case lid 13 is not switched on, and position switch 56 (determining on off operating mode according to 13 position of tank lid of sealing device 1) is now in closure
State, after the completion of last round of test, when the pressure in water tank 11 does not restore, second relay normally open switch 57b, 57c is still set to
In closed state, the second relay 57 must be electric, and the second relay 57 is the control relay of second relay normally open switch 57b, 57c
Device, by self-sustaining enable the second relay 57 and the 4th relay 61 persistently it is electric, and make the second relay normal
Make and break is closed 57a and is off, and the second relay normally closed switch 57a, which is disconnected, makes the first relay 62 electric from obtaining, so
First relay normally open switch 62b is remained open, and relay 53 cannot obtain electric, and relay normally open switch 53a is remained open, vacuum
Air pump inoperative.After second time relay, 64 preset time T 2, the switch of control makes a response, the second time relay
Device normal open switch 64a is closed, and the second time relay normally closed switch 64b is disconnected, and the 5th relay 66 must be electric, and the 5th relay is normal
Switch 66a is closed, air bleeding valve 70 (for electric-controlled type air bleeding valve) work.
When air bleeding valve 70 acts on 11 internal pressure of lower header and reverts to predetermined pressure domain P1, the first pressure under the pressure
It controls switch 591 and enters closed state, second pressure control switch 60 is off, the first relay normally closed switch 62a
For closed state, thus third relay 63 it is electric；Third relay 63 is the control relay of third relay normally closed switch 63a
Therefore device, third relay normally closed switch 63a are disconnected, lead to 57 dead electricity of the second relay, the second relay 57 described above
Self-sustaining be released from, the second relay normally closed switch 57a is closed, thus first time relay 58 must with the first relay 62
Electricity, vacuum pump operation pressure regulation, first time relay 58 are connected after predetermined time T1, and the pressure in water tank 11 is within the T1 times
Reach predetermined pressure P2 values, (if in addition, beyond the T1 times because certain failures cause 11 internal pressure of water tank to be unable to adjust to predetermined
When pressure P2 values, vacuum pump out of service itself can will not be worked long hours with protecting.) second pressure is controlled and opened under the pressure
It closes 60 and enters closed state, first pressure control switch 59 is off, and the second relay 57 must be electric, and the second relay is normal
Make and break is closed 57a and is disconnected, and 62 dead electricity of first time relay 58 and the first relay, vacuum pump is out of service, is tested into pressurize
Stage.At the same time, the second relay 57 obtains cable order the second relay normally open switch 57b and is closed and is in circuit self-locking state,
Another the second relay normally open switch 57c is closed, and the 4th relay switch 61a and the 4th relay 61 is caused to be in shape of controlling oneself
State, while second time relay 64 and the third time relay 65 start timing.When the second 64 predetermined pressurize of the time relay
Between be T2, before reaching dwell time T2, second time relay 64 control the second time relay normally closed switch 64b still locate
It in on-state, gives the second LED pipe 68 electric signal, " in test " signal is shown in display box 12.When second time relay
After 64 preset time Ts 2, the switch of control makes a response, and the second time relay normal open switch 64a is closed, when second
Between relay normally closed switch 64b disconnect, the first LED pipe 67 and the 5th relay 66 electric, display " test completion ".
The 5th relay normally open switch 66a is closed at this time, and air bleeding valve 70 starts to be vented, and system, which is in, restores pressure process,
It prepares for next round test.
The setting of the third time relay 65 is in order to extend the dwell time；65 preset time of the third time relay be more than etc.
Be in the characteristics of T2, third time relay normal open switch 65a the third time relay 65 it is electric after time-delay closing, and
The third time relay 65 is delayed after powering off and disconnects；In described in epimere, the second time relay normally closed switch 64b disconnect after the
Three time relay normal open switch 65a are closed, and a wheel test process is completed at this time.When air bleeding valve 70 does not have started exhaust,
Change-over switch 71 in operating personnel's trigger circuit resets (in the case of non-self maintained push button switch), and second time relay is normally closed
Switch 64b can be closed again, but air bleeding valve 70 no longer works at this time, and the third time relay 44 powers off, but third time relay
Device normal open switch 65a needs could disconnect after a certain time, and third LED pipe 69 can react under this state, prompt behaviour
It is interrupted, 11 inside pressure of water tank is still P2 by force at this time, and testing process can be again introduced into test and complete shape after operation a period of time
State, can be taking human as the lengthening dwell time by increasing by 65 this mode of the third time relay；It in addition can be by accessing timing
The mode of device records break time.
When pressure restores to preset pressure domain P1, first pressure controls switch 59 and is closed, and third relay 63 must be electric, leads
Cause third relay normally closed switch 63a to disconnect, final result is that air bleeding valve 70 is stopped, and vacuum pump is run again, system into
Enter next round working condition.Or tank lid 13 is opened by operator, whole system is placed in original state by position switch 56,
This batch of tested product is taken out, tank lid 13 is closed after next group product is put into water tank 11, into new round test process.
Thus the follow-on test that may be implemented that product is surveyed to a batch is seen；If necessary to be surveyed to successive batches product
Examination, then can be by closing change-over switch 71；Or change-over switch 71 is kept to be closed, by opening tank lid 13, control position
Switch 56 disconnects；Whole system is enabled to restPose.
The non-self-holding normally closed switch disconnected when change-over switch 71 is set as only in pressing, and position switch 56 is set as having
When having the switch of break-make two states, the automation of testing process equally can be preferably realized, it is similar with process above, herein
It is not added with and repeats.
In water tank 11 monitoring of pressure can by the water tank 11 setting pressure sensor come to pressure in water tank 11 into
Row monitoring in real time.
Certainly, the utility model can also have other various embodiments, without departing substantially from the utility model utility model spirit and
In the case of its essence, those skilled in the art can make various corresponding changes according to the utility model utility model
And deformation, but these corresponding change and deformations belong to the protection model of the utility model utility model the attached claims
It encloses.
Claims (10)
1. a kind of product protective capacities test equipment, including：Support device, which is characterized in that
The sealing device for accommodating test product is provided in the support device, the sealing device includes water tank and tank lid,
The water tank is tightly connected with the tank lid by gripping mechanism, and the water tank is provided with that air bleeding valve is gentle to connect mouth, the gas
It connects mouth and is connected with the compressed air source unit for generating pressure difference for the offer air pressure into the water tank and inside and outside the test product, it is described
Compressed air source unit is electrically connected electric control gear.
2. product protective capacities test equipment according to claim 1, which is characterized in that the compressed air source unit includes by electricity
The air pump of machine driving.
3. product protective capacities test equipment according to claim 2, which is characterized in that the electric control gear includes main electricity
Road and logic control circuit；
The main circuit includes：Power supply adaptor, with the relay normally open switch for the motor joining for driving the air pump and control
The relay of the relay normally open switch, is serially connected with the first relay normally open between the power supply adaptor and the relay
Switch；
The logic control circuit includes：Change-over switch, position switch and the master control being serially connected with the power supply adaptor
Circuit processed；The master control circuit include the first circuit parallel with one another, second servo loop, tertiary circuit, the 4th circuit, the 5th time
Road and the 6th circuit；
First circuit include the second relay normally closed switch and concatenated with the second relay normally closed switch two simultaneously
Join branch, wherein a branch connects first time relay, another article of branch connects the controlled by the first time relay
One time relay normally closed switch and the first relay；
The second servo loop includes first pressure control switch, the first relay normally closed switch and the third relay being serially connected
Device, the first relay normally closed switch are controlled by first relay；
The tertiary circuit includes that second pressure control switch and first the second relay normally open switch, the second pressure control
System switch and first the second relay normally open switch in parallel after with third relay normally closed switch and the second relay string
It connects, the third relay normally closed switch is controlled by the third relay, and second relay controls second relay
Device normal open switch；
4th circuit includes second the second relay normally open switch and the 4th relay normally open switch, second institute
State the second relay normally open switch with it is normally closed with third relay described in another after the 4th relay normally open switch in parallel
Switch concatenation, the third relay normally closed switch concatenate three three branches in parallel, and first article of branch connects the 4th relay, the
Two branches connect second time relay, and Article 3 branch connects the third time relay；
5th circuit includes the second time relay normal open switch being serially connected, the first LED pipe, second time
Relay normally open switch is controlled by second time relay；
6th circuit includes the second time relay normally closed switch, and second time relay normally closed switch is serially connected with two
Parallel branch, a branch connect the second LED pipe, and another branch connects third time relay normal open switch and third LED pipe.
4. product protective capacities test equipment as claimed in claim 3, which is characterized in that the first time relay is normally closed
Switch disconnects switch for on-delay, and second time relay normally closed switch is disconnected for on-delay and being switched, and described second
Time relay normal open switch is on off delay closure switch, the third time relay normal open switch on-delay be closed and
Power cut off delay disconnects switch.
5. product protective capacities test equipment as claimed in claim 4, which is characterized in that the air bleeding valve is electric-controlled type exhaust
Valve, the master control circuit further include the 7th circuit, and the 7th circuit includes that the 5th relay normally open being serially connected is opened
It closes and the electric-controlled type air bleeding valve, the 5th circuit further includes the 5th relay concatenated with first LED pipe, and described the
Five relays control the 5th relay normally open switch.
6. product protective capacities test equipment according to claim 5, which is characterized in that the electric control gear includes being used for
Show that the display box of automatically controlled information, the electric control gear are control relay circuit device or programmable integrated circuit device.
7. product protective capacities test equipment according to claim 1, which is characterized in that the support device includes machine
Cabinet, the electric control gear are set in the cabinet.
8. product protective capacities test equipment according to claim 7, which is characterized in that the tank lid and the cabinet
Between be provided with switching mechanism,
9. product protective capacities test equipment according to claim 8, which is characterized in that the switching mechanism includes fixing
In the holder of the cabinet, and the rocking arm hinged with the holder, the one end are connect with the tank lid, the other end with
Place mass configuration support is connected, the tank lid or the rocking arm be connected with handle.
10. product protective capacities test equipment as described in claim 1, which is characterized in that the product protective capacities test
Equipment further includes cleaning system, and the cleaning system includes control water platform and air gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923741.2U CN207717298U (en) | 2017-12-29 | 2017-12-29 | A kind of product protective capacities test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923741.2U CN207717298U (en) | 2017-12-29 | 2017-12-29 | A kind of product protective capacities test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207717298U true CN207717298U (en) | 2018-08-10 |
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| CN201721923741.2U Active CN207717298U (en) | 2017-12-29 | 2017-12-29 | A kind of product protective capacities test equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990951A (en) * | 2017-12-29 | 2019-07-09 | 北京佩特来电器有限公司 | A kind of product protective capacities test equipment and test method |
| CN111537153A (en) * | 2020-04-24 | 2020-08-14 | 清华大学 | Device for testing sealing capability of magnetic liquid |
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2017
- 2017-12-29 CN CN201721923741.2U patent/CN207717298U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990951A (en) * | 2017-12-29 | 2019-07-09 | 北京佩特来电器有限公司 | A kind of product protective capacities test equipment and test method |
| CN111537153A (en) * | 2020-04-24 | 2020-08-14 | 清华大学 | Device for testing sealing capability of magnetic liquid |
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