CN203965140U - A kind of pick-up unit of valve block spring of refrigerant filtrator - Google Patents
A kind of pick-up unit of valve block spring of refrigerant filtrator Download PDFInfo
- Publication number
- CN203965140U CN203965140U CN201420312794.0U CN201420312794U CN203965140U CN 203965140 U CN203965140 U CN 203965140U CN 201420312794 U CN201420312794 U CN 201420312794U CN 203965140 U CN203965140 U CN 203965140U
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- Prior art keywords
- refrigerant
- filtrator
- block spring
- valve block
- pressure pulse
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- Expired - Lifetime
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 118
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 25
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a kind of pick-up unit of valve block spring of refrigerant filtrator, wherein, the pick-up unit of the valve block spring of refrigerant filtrator comprises pressure pulse equipment and detecting element, described pressure pulse equipment is filled with or discharges described refrigerant filtrator to be detected by connecting line by detecting medium, realize the opening and closing that includes the check valve assembly of valve block spring in described refrigerant filtrator to be detected, described detecting element is for obtaining the parameter relevant to the reliability of described valve block spring.The utility model is reciprocally filled with detection medium in refrigerant filtrator by pressure pulse equipment, having realized not the stopping of check valve assembly that includes valve block spring in refrigerant filtrator opens and closure, be similar to the action simulation in actual use procedure, realized the detection assessment to the parameter relevant to reliability such as valve block spring serviceable life.
Description
Technical field
The utility model relates to spring pick-up unit, relate in particular to a kind of for to refrigerant filtrator, the pick-up unit that the parameters relevant to the reliability of valve block spring such as life-span of the valve block spring of check valve assembly detect.
Background technology
Refrigerant in the process of plugging in pipeline and the meeting such as other gaseous impuritieies it is polluted, therefore, in entropy inspection room, adopt refrigerant filtrator to filter the refrigerant of the system of entering, improve the purity of refrigerant.And in refrigerant filtration device structure, check valve assembly has directly determined the effect of filtration and the serviceable life of refrigerant filtrator.The principle of work of refrigerant filtrator is mainly by pressure, refrigerant to be advanced in filter element, and after filtering by filter element, refrigerant pressure is opened check valve assembly, thereby has realized the filtration to refrigerant.Because the opening and closing of check valve assembly is that the stretching by valve block spring and resetting realizes, if the life-span of valve block spring is bad or resilience is bad, easily cause some impurity in system, as chip of O-ring seal etc. is clipped on the miscellaneous part in valve block spring or check valve assembly, and then have influence on the refrigerant purity of system, therefore, the reliability of valve block spring is most important, has directly determined the filter effect of filtrator.
Owing to having relevant pick-up unit to realize at present, the parameters such as life-span of the valve block spring in refrigerant filtrator are not carried out to reliability detection, therefore, urgent need is designed and developed a set of pick-up unit, for the parameters such as life-span of the valve block spring of refrigerant filtrator check valve assembly are detected to assessment, improve it to the filter effect of refrigerant and serviceable life.
Utility model content
For the problems referred to above, the purpose of this utility model is the pick-up unit that proposes a kind of valve block spring of refrigerant filtrator, can be in refrigerant filtrator, and the correlation parameters such as life-span of the valve block spring of check valve assembly compare reliable detection assessment.
For achieving the above object, the utility model provides a kind of pick-up unit of valve block spring of refrigerant filtrator, comprise pressure pulse equipment and detecting element, described pressure pulse equipment is filled with or discharges described refrigerant filtrator to be detected by connecting line by detecting medium, realize the opening and closing that includes the check valve assembly of valve block spring in described refrigerant filtrator to be detected, described detecting element is for obtaining the parameter relevant to the reliability of described valve block spring.
In a preferred or optional embodiment, also comprise retaining valve, the import of described retaining valve connects the refrigerant outlet side of described refrigerant filtrator to be detected by connecting line, the outlet of described retaining valve connects liquid reserve tank by connecting line, stores detection medium in described liquid reserve tank.
In a preferred or optional embodiment, also comprise threeway, the first port of described threeway connects the import of described pressure pulse equipment by connecting line, the second port of described threeway connects described liquid reserve tank by connecting line, and the 3rd port of described threeway connects the outlet of described retaining valve by connecting line.
In a preferred or optional embodiment, described detection medium is hydraulic oil.
In a preferred or optional embodiment, described pressure pulse equipment is oil pulse equipment.
In a preferred or optional embodiment, be set to 1s the pressing time of described pressure pulse equipment, release set of time is 1s.
In a preferred or optional embodiment, described detecting element is counter, and described counter is electrically connected to described pressure pulse equipment, and described counter is for including the number of times of opening and closing of the check valve assembly of valve block spring described in obtaining.
Based on technique scheme, the utility model at least has following beneficial effect:
The utility model is reciprocally filled with detection medium in refrigerant filtrator by pressure pulse equipment, having realized not the stopping of check valve assembly that includes valve block spring in refrigerant filtrator opens and closure, be similar to the action simulation in actual use procedure, and detect the parameter relevant to the reliability of described valve block spring by detecting element, realize the detection assessment to dependability parameters such as valve block spring serviceable lifes, improved detection level; Be conducive to further improve the dependability of refrigerant filtrator, improve the purity that refrigerant filters, improve systematic energy efficiency ratio.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The structural representation of the refrigerant filtrator that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation of the check valve assembly shown in Fig. 1;
The structural representation of the pick-up unit of the valve block spring of the refrigerant filtrator that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
As shown in Figure 1, the refrigerant filtrator A to be detected that the utility model provides comprises filter body 1, in filter body 1, be provided with filter element 2, one end of filter body 1 is refrigerant inlet end 3, the other end of filter body 1 is refrigerant outlet side 4, in the filter body 1 between refrigerant outlet side 4 and filter element 2, is provided with check valve assembly 5.
As shown in Figure 2, check valve assembly 5 comprises bracket 51, bracing frame 52, catch 53, valve block spring 54 and rivet 55, bracket 51 and bracing frame 52 play the effect of fixed support, catch 53 is arranged on bracing frame 52 near a side of refrigerant outlet side 4, catch 53 is for blocking the refrigerant exit arranging on bracing frame 52, rivet 55 is successively through bracket 51, bracing frame 52 and catch 53, the two ends of rivet 55 are provided with the countersunk head portion that diameter is greater than rivet 55, countersunk head portion and valve block spring 54 near refrigerant outlet side 4 link together, and valve block spring 54 is also connected with catch 53.By stretching and the reset of valve block spring 54, or compression and reset, drive catch 53 to open with closed, realize the break-make of refrigerant.
As shown in Figure 1, on the end cap of refrigerant outlet side 4, be also provided with position-limited rack 6, position-limited rack 6 can be excessive for the opening degree of limiting valve flat spring 54, there is this position-limited rack 6, valve block spring 54 all can be withstood after being opened to a certain degree at every turn, thereby play position-limiting action, guarantee the each consistance of opening of valve block spring 54.
The pick-up unit of the valve block spring of the refrigerant filtrator that the utility model provides can detect for the parameters relevant to reliability such as life-span of the valve block spring 54 of the check valve assembly 5 in the refrigerant filtrator A to providing in above-described embodiment, also can be in prior art, the parameters relevant to reliability such as life-span of the valve block spring of the check valve assembly of other refrigerant filtrators detect.
As shown in Figure 3, the pick-up unit of the valve block spring of the refrigerant filtrator that the utility model provides comprises pressure pulse equipment 7 and detecting element, detecting element can be electrically connected to pressure pulse equipment 7, or, detecting element can be in parallel with refrigerant filtrator A to be detected, pressure pulse equipment 7 can be arranged on the refrigerant inlet end 3 of refrigerant filtrator A to be detected, pressure pulse equipment 7 is filled with or discharges refrigerant filtrator A to be detected by connecting line 10 by detecting medium, realize the opening and closing that includes the check valve assembly 5 of valve block spring 54 in refrigerant filtrator A to be detected.Because the opening and closing of check valve assembly 5 is stretching and the resets by valve block spring 54, or compression and reset, realize, therefore, by can detecting element obtaining the number of times of check valve assembly 5 opening and closings, under same opening and closing number of times, the spring force of the valve block spring 54 of the check valve assembly 5 in the different refrigerant filtrator A of test is further set by other, can contrast the quality that compares valve block spring 54, reach the object that detects life-span etc. of valve block spring 54 parameter relevant to the reliability of valve block spring 54.
The pick-up unit of the valve block spring of the refrigerant filtrator that the utility model provides utilizes connecting line, make for the first time the detection medium that is filled with refrigerant filtrator A by pressure pulse equipment 7 be gone out system by effectively " suction ", then utilize pressure pulse equipment 7, reciprocally detection medium is filled with in refrigerant filtrator A, having realized not the stopping of check valve assembly 5 that includes valve block spring 54 in refrigerant filtrator A opens and closure, be similar to the action simulation in actual use procedure, realized the detection assessment in 54 serviceable lifes of valve block spring.
The pick-up unit of the valve block spring of the refrigerant filtrator that the utility model provides can also comprise retaining valve 8, the import of retaining valve 8 connects the refrigerant outlet side 4 of refrigerant filtrator A to be detected by connecting line 10, the outlet of retaining valve 8 connects liquid reserve tank 11 by connecting line 10, stores detection medium in liquid reserve tank 11.The utility model can be for preventing that the detection medium suck-back in liquid reserve tank 11 from entering in refrigerant filtrator A by retaining valve 8 is set.
The pick-up unit of the valve block spring of the refrigerant filtrator that the utility model provides can also comprise threeway 9, the first port of threeway 9 is by the import of connecting line 10 Bonding pressure pulsing units 7, the second port of threeway 9 connects liquid reserve tank 11 by connecting line 10, and the 3rd port of threeway 9 connects the outlet of retaining valve 8 by connecting line 10.When 7 pressurization of pressure pulse equipment, by threeway 9, can guarantee that the outlet of retaining valve 8 is consistent near the pressure of the first area A1 the inside of refrigerant inlet end 3 with refrigerant filtrator A to be detected; When 4 release of pressure pulse equipment, retaining valve 8 is opened, and the detection medium in refrigerant filtrator A to be detected flows back to liquid reserve tank 11 by retaining valve 8 and threeway 9.By being set, retaining valve 8 and threeway 9 can further guarantee the stability of whole pick-up unit.
A specific embodiment of pick-up unit that Figure 3 shows that the valve block spring of above-mentioned refrigerant filtrator, the pick-up unit of the valve block spring of the refrigerant filtrator providing in this embodiment comprises pressure pulse equipment 7, retaining valve 8, threeway 9, connecting line 10 and detecting element.One end of pressure pulse equipment 7 is by the first port of connecting line 10 connecting tees 9, the second port of threeway 9 connects liquid reserve tank 11, pressure pulse is established the refrigerant inlet end 3 that the 7 standby other ends connect refrigerant filtrator A, the refrigerant outlet side 4 of refrigerant filtrator A connects the import of retaining valve 8, the 3rd port of the outlet connecting tee 9 of retaining valve 8 by connecting line 10.In liquid reserve tank 11, store the detection medium valve block spring 54 of refrigerant filtrator A check valve assembly 5 being detected for be filled with refrigerant filtrator A by pressure pulse equipment 7.Detecting element is electrically connected to pressure pulse equipment 7 (not shown)s.
The present embodiment links together retaining valve 8 and pressure pulse equipment 7 by threeway 9 is set, and when 7 work of pressure pulse equipment, can guarantee that the outlet of retaining valve 8 is consistent with refrigerant filtrator A near the pressure inside the first area A1 of refrigerant inlet end 3.
The detection medium of liquid reserve tank 11 interior storages of the present utility model can be hydraulic oil, and pressure pulse equipment 7 adopts hydraulic oil as the detection medium of pressurization, and hydraulic oil has the functions such as lubricated, antirust through pressure pulse equipment 7.The utility model also can adopt water as the detection medium of liquid reserve tank 11 interior storages, also can reach the object that detects valve block 54 life-spans of spring, but water, gas etc. easily cause that pressure pulse equipment 7 and refrigerant filtrator A get rusty etc. as detecting medium, therefore do not advise adopting.
Pressure pulse equipment 7 in above-described embodiment can adopt oil pulse equipment, or other similar pulsing units on the market.
The pressing time of the pressure pulse equipment 7 in above-described embodiment and release time can arrange and regulate according to actual conditions.For example: can be set to 1s the pressing time of pressure pulse equipment 7, the release time can be set to 1s, and the time that completes a recurrence interval is 2s.
In above-described embodiment, detecting element can adopt counter, by counter, can count the opening and closing number of times of the check valve assembly 5 that comprises valve block spring 54 (being also the pulse number of pressure pulse equipment 7), can obtain exactly the life-span number of times of check valve assembly 5 middle valve plate springs 54.Then further by other checkout equipments, detect the spring force of valve block spring 54, determine preferably refrigerant filtrator A of quality.
In above-described embodiment, detecting element can be also timer, in the situation that the recurrence interval of pressure pulse equipment 7 is certain, by recording the total duration of work of pressure pulse equipment 7, utilize the total duration of work divided by the recurrence interval, can obtain the pulse number of pressure pulse equipment 7, and then obtain the life-span number of times of check valve assembly 5 middle valve plate springs 54, reach the object that the dependability parameters such as life-span of valve block spring 54 are detected.
The detection method of the pick-up unit of the valve block spring of the refrigerant filtrator that employing the utility model provides, comprises the steps:
Step 1) pressure pulse equipment 7 starts pressurization, by detecting medium, is filled with in refrigerant filtrator A to be detected;
Step 2) check valve assembly 5 that includes valve block spring 54 in refrigerant filtrator A to be detected is opened under the pressure-acting that detects medium, detects medium and flows out refrigerant filtrator A;
Step 3) pressure pulse equipment 7 starts release, includes check valve assembly 5 closures of valve block spring 54 in refrigerant filtrator A;
Step 4) repeat above-mentioned 1)～step 3), the check valve assembly 5 that includes valve block spring 54 repeats opening and closing, and by detecting element, obtains the number of times of check valve assembly 5 opening and closings;
Step 5) in the situation that identical opening and closing number of times, can further by other checkout equipments, detect the spring force of different refrigerant filtrator A middle valve plate springs 54 to be detected, determine the good valve block spring 54 of quality, reach the object that the dependability parameters such as life-span of valve block spring 54 are detected and assessed.
In above-described embodiment, in step 2) in, detect medium and flow out after refrigerant filtrator A, by retaining valve 8, flow back to liquid reserve tank, retaining valve 8 enters in refrigerant filtrator A for preventing the detection medium suck-back of liquid reserve tank 11.
In above-described embodiment, between retaining valve 8, pressure pulse equipment 7 and liquid reserve tank 11 threes, by threeway 9, connect; During 7 pressurization of pressure pulse equipment, by threeway 9, guarantee that the outlet of retaining valve 8 is consistent near the pressure of the first area A1 the inside of refrigerant inlet end 3 with refrigerant filtrator A to be detected; During 7 release of pressure pulse equipment, retaining valve 8 is opened, and the detection medium in refrigerant filtrator A to be detected flows back to liquid reserve tank 11 by retaining valve 8 and threeway 9.
The specific embodiment of detection method of pick-up unit of enumerating the valve block spring of the refrigerant filtrator that the utility model provides below, this embodiment comprises the steps:
1) parts such as refrigerant filtrator A and each connecting line 10, pressure pulse equipment 7, retaining valve 8, liquid reserve tank 11 and detecting element are connected;
2) open the Switching Power Supply of pressure pulse equipment 7, now pressure pulse equipment 7 is started working, 7 pressurizations of pressure pulse equipment, and the hydraulic oil of liquid reserve tank 11 the insides starts to pressure pulse equipment 7 fuel feeding.Hydraulic oil enters into each position of inwall of the filter body 1 of refrigerant filtrator A from the refrigerant inlet end 3 of refrigerant filtrator A along pressure pulse equipment 7, and slowly by filter element 2 ecto-entads, successively filter under pressure;
3) after being full of whole filter element 2, check valve assembly 5 is opened under pressure, valve block spring 54 is in the state of being stretched or compressed, now hydraulic oil is full of in the second area A2 and the retaining valve 8 in connecting line 10 of refrigerant filtrator A near refrigerant outlet side 4 along check valve assembly 5, but now due to pressure pulse equipment 7, by threeway 9, in the outlet of retaining valve 8, applied pressure, therefore, retaining valve 8 now can't be opened, so far, complete once pressurization;
4) pressure pulse equipment 7 starts release, filter element 2, hydraulic oil in the first area A1 of refrigerant filtrator A refluxes toward liquid reserve tank 11 directions of low pressure rapidly under pressure, hydraulic oil in the first area A1 of filter element 2 and refrigerant filtrator A is back to after liquid reserve tank 11, owing to there being pressure reduction, valve block spring 54 now returns to origin-location, the second area A2 of refrigerant filtrator A forms flashy sealed high pressure district, then retaining valve 8 is inevitable opens under pressure, make the hydraulic oil of the second area A2 of refrigerant filtrator A be back to smoothly liquid reserve tank 11, now complete whole flow process.In this whole flow process, there is one-off drawing or compression and once resetted in the valve block spring 54 in check valve assembly 5.
The second area A2 of refrigerant filtrator A form flashy sealed high pressure district be because: after release, valve block spring 54 returns in check valve assembly 5 drive catch 53 closures, retaining valve 8 is in moment or in closure state, second area A2 has just formed flashy sealed high pressure district, then due to 7 releases of pressure pulse equipment, the top hole pressure of retaining valve 8 is unloaded down, and retaining valve 8 natures can be opened, and make hydraulic oil pass back into liquid reserve tank 11.
5) according to above-mentioned flow process ceaselessly repeatedly, the valve block spring 54 in check valve assembly 5 will constantly stretch and reset in process of the test, or compression and reset, obtain the opening and closing number of times of check valve assembly 5 by detecting element.
6) last, further by other checkout equipments of the prior art, test the spring force that includes the valve block spring 54 after the opening and closing number of times that the check valve assembly 5 of valve block spring 54 is identical in each refrigerant filtrator A to be detected, therefore, realized the detection assessment to the parameter relevant to reliability such as life-span of the valve block spring 54 in check valve assembly 5.
The pick-up unit in 54 life-spans of valve block spring of the refrigerant filtrator A that the utility model provides is mainly comprised of pressure pulse equipment 7, retaining valve 8, threeway 9 and connecting line 10 etc., utilize the action of connecting line 10 and each parts to coordinate, to the reliability relevant detections such as life-span of realization to the valve block spring 54 of refrigerant filtrator A, has solved following technical matters:
1) realized the detection assessments relevant to reliability such as the life-span of the valve block spring 54 of check valve assembly 5 in refrigerant filtrator A, reliability and the serviceable life of having improved refrigerant filtrator A;
2) detection case of knowing the real situation of valve block spring 54 life and reliabilities of check valve assembly 5 that can Jiang Ge supplier is verified contrast, and optimum correlation parameter is sophisticated in related check standard, improves and checks and accepts quality.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (7)
1. the pick-up unit of the valve block spring of a refrigerant filtrator, it is characterized in that: comprise pressure pulse equipment and detecting element, described pressure pulse equipment is filled with or discharges described refrigerant filtrator to be detected by connecting line by detecting medium, realize the opening and closing that includes the check valve assembly of valve block spring in described refrigerant filtrator to be detected, described detecting element is for obtaining the parameter relevant to the reliability of described valve block spring.
2. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 1, it is characterized in that: also comprise retaining valve, the import of described retaining valve connects the refrigerant outlet side of described refrigerant filtrator to be detected by connecting line, the outlet of described retaining valve connects liquid reserve tank by connecting line, stores detection medium in described liquid reserve tank.
3. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 2, it is characterized in that: also comprise threeway, the first port of described threeway connects the import of described pressure pulse equipment by connecting line, the second port of described threeway connects described liquid reserve tank by connecting line, and the 3rd port of described threeway connects the outlet of described retaining valve by connecting line.
4. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 3, is characterized in that: described detection medium is hydraulic oil.
5. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 4, is characterized in that: described pressure pulse equipment is oil pulse equipment.
6. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 1, is characterized in that: be set to 1s the pressing time of described pressure pulse equipment, release set of time is 1s.
7. the pick-up unit of the valve block spring of refrigerant filtrator as claimed in claim 1, it is characterized in that: described detecting element is counter, described counter is electrically connected to described pressure pulse equipment, and described counter is for including the number of times of opening and closing of the check valve assembly of valve block spring described in obtaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312794.0U CN203965140U (en) | 2014-06-12 | 2014-06-12 | A kind of pick-up unit of valve block spring of refrigerant filtrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312794.0U CN203965140U (en) | 2014-06-12 | 2014-06-12 | A kind of pick-up unit of valve block spring of refrigerant filtrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965140U true CN203965140U (en) | 2014-11-26 |
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ID=51925706
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420312794.0U Expired - Lifetime CN203965140U (en) | 2014-06-12 | 2014-06-12 | A kind of pick-up unit of valve block spring of refrigerant filtrator |
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| Country | Link |
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| CN (1) | CN203965140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019973A (en) * | 2014-06-12 | 2014-09-03 | 珠海格力电器股份有限公司 | Detection device and method of valve block spring of refrigerant filter |
-
2014
- 2014-06-12 CN CN201420312794.0U patent/CN203965140U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019973A (en) * | 2014-06-12 | 2014-09-03 | 珠海格力电器股份有限公司 | Detection device and method of valve block spring of refrigerant filter |
| CN104019973B (en) * | 2014-06-12 | 2017-01-11 | 珠海格力电器股份有限公司 | Detection device and method of valve block spring of refrigerant filter |
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