CN205025766U - Pump body structure and have its compressor - Google Patents
Pump body structure and have its compressor Download PDFInfo
- Publication number
- CN205025766U CN205025766U CN201520763187.0U CN201520763187U CN205025766U CN 205025766 U CN205025766 U CN 205025766U CN 201520763187 U CN201520763187 U CN 201520763187U CN 205025766 U CN205025766 U CN 205025766U
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- Prior art keywords
- mounting hole
- pump body
- bearing
- body structure
- suspension module
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- Withdrawn - After Issue
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Abstract
The utility model provides a pump body structure and have its compressor, include: the bearing frame, the bent axle sets up in the bearing frame, bearing suspension subassembly sets up in the bearing frame, is provided with throttling passage on the bearing suspension subassembly, and throttling passage is used for letting in gas so that the bent axle is in the suspended state when rotating. Use the technical scheme of the utility model, including bearing frame and bent axle in pump body structure, through set up bearing suspension subassembly in pump body structure, be provided with throttling passage on the bearing suspension subassembly. Throttling passage is used for letting in gas so that the bent axle is in the suspended state when rotating. Make the bent axle in the pump body structure be in the suspended state when rotating to the damage that the bent axle caused has been reduced when rotatory.
Description
Technical field
The utility model relates to Compressor Technology field, in particular to a kind of pump body structure and the compressor with it.
Background technique
Rotary compressor requires very high to antiwhip, and generally use sliding bearing scheme in prior art, sliding bearing will use lubricant oil to avoid bearing generation sharp wear.In the face of severe Environmental Protection Situation and country are to the replacement requirement of refrigerant, the Novel cooling mediums such as R32/R290 substitute R22 gradually.When using Novel cooling medium, because air-conditioning system requires that refrigerant and lubricant oil will have certain compatibility, new lubricant need be used.And in actual development process, high a lot of of the cost ratio former lubricant oil price of new lubricant, make compressor complete machine cost increase.On the other hand, use sliding bearing in engineering reality, along with the continuous increase of compressor displacement, the pressure that running shaft and bearing bear is larger, the situation (as shown in the structural representation of Fig. 1 middle pump body 1) of running shaft heavy wear is there is in part compared with huge discharge type, to the stressing conditions improving bearing, and the reliability improving compressor is had higher requirement.
Model utility content
Main purpose of the present utility model is the compressor providing a kind of pump body structure and have it, to solve the problem of bent axle of the prior art and bearing shaft frictionally damage.
To achieve these goals, according to an aspect of the present utility model, provide a kind of pump body structure, comprising: bearing support; Bent axle, is arranged in bearing support; Bearing suspension module, is arranged in bearing support, and bearing suspension module is provided with throttling passage, and throttling passage is used for passing into gas and is in state of suspension to make bent axle when rotating.
Further, bearing support is provided with the mounting hole for holding bearing suspension module along its axial direction, and throttling passage is included in the throttling passage that the perisporium of bearing suspension module is offered, and throttling passage is connected with mounting hole.
Further, that radial direction bearing support is also provided with along mounting hole is arranged and the first inlet hole be connected with mounting hole.
Further, throttling passage is multiple.
Further, the axis of throttling passage is arranged along the radial direction of bearing suspension module.
Further, multiple throttling passage is arranged along the radial direction of institute's bearing suspension module equably.
Further, bearing suspension module is circular cylinder.
Further, bearing support comprises disk body and is arranged on extension part on disk body, and the first inlet hole to be arranged on disk body and to be connected with mounting hole.
Further, bearing support comprises upper bearing bracket and step, and step is positioned at the below of upper bearing bracket.
Further, the axis of upper bearing bracket is provided with the first mounting hole, and step has the second mounting hole, and bearing suspension module to be arranged in upper bearing bracket and/or step and between bent axle and upper bearing bracket, step.
Further, bearing suspension module is arranged along the circumference of the first mounting hole and/or the second mounting hole, the external diameter of bearing suspension module is less than the internal diameter of the first mounting hole and/or the second mounting hole, forms toroidal cavity between the outer wall of bearing suspension module and the inwall of the first mounting hole and/or the second mounting hole.
Further, the disk body of step is provided with the second inlet hole be connected with mounting hole.
Further, the opening at the inwall two ends of the first mounting hole and/or the second mounting hole is provided with the protruding structure of annular, and the internal diameter of protruding structure is less than the internal diameter of the first mounting hole and/or the second mounting hole.
Further, the bottom of the first mounting hole is provided with the first blocked part, and the first blocked part extends internally towards the radial direction of the first mounting hole, and the internal diameter of the first blocked part is less than the internal diameter of protruding structure.
Further, the top of the second mounting hole is provided with the second blocked part, and the second blocked part extends internally towards the radial direction of the second mounting hole, and the internal diameter of the second blocked part is less than the internal diameter of protruding structure.
Further, bearing suspension module also comprises suspension support part door, and the top that suspension support part door is arranged on the first mounting hole is deviate to prevent bearing suspension module.
Further, suspension support part door comprises: lever piece; Thread section, is connected with lever piece, and the external diameter of thread section is less than the external diameter of lever piece; Wherein, the axial direction along lever piece and thread section offers the bent axle through hole suitable with bent axle.
Further, lever piece cross section in polygonal or rounded.
According to another aspect of the present utility model, provide a kind of compressor, comprise pump body structure, pump body structure is above-mentioned pump body structure.
Further, also comprise: admission line, have first end and the second end, first end is connected with the exhaust cavity of compressor, and the second end is connected with the first inlet hole of pump body structure and/or the second inlet hole respectively; Solenoid valve, is arranged on admission line.
Further, the bottom of the step of compressor is fixed by bottom silencer.
Application the technical solution of the utility model, comprising bearing support and bent axle at pump body structure, by arranging bearing suspension module in pump body structure, bearing suspension module being provided with throttling passage.Throttling passage is used for passing into gas and is in state of suspension to make bent axle when rotating.Make the bent axle in pump body structure be in state of suspension when rotating, thus reduce the damage that bent axle causes when rotated.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of prior art middle pump body structure;
Fig. 2 shows the structural representation of the embodiment according to pump body structure of the present utility model;
Fig. 3 shows the perspective view of the embodiment according to bearing suspension module of the present utility model;
Fig. 4 shows the plan view of the embodiment according to bearing suspension module of the present utility model;
Fig. 5 to show in Fig. 4 A-A to cross-sectional view;
Fig. 6 shows the perspective view of the embodiment according to suspension support part door of the present utility model;
Fig. 7 shows the plan view of the embodiment according to suspension support part door of the present utility model;
Fig. 8 shows the structural representation at first visual angle of the embodiment of suspension support part door in Fig. 7;
Fig. 9 to show in Fig. 7 B-B to cross-sectional view;
Figure 10 shows the cross-sectional view of the embodiment according to upper bearing bracket of the present utility model;
Figure 11 shows the cross-sectional view of the embodiment according to step of the present utility model;
Figure 12 shows the cross-sectional view of the embodiment coordinated with between suspension support part door and bent axle according to bearing support of the present utility model;
Figure 13 shows the plan view of Figure 12; And
Figure 14 shows the cross-sectional view according to compressor of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, bearing support; 11, mounting hole; 12, upper bearing bracket; 13, step; 14, the first mounting hole; 15, toroidal cavity; 16, the second mounting hole; 17, the first blocked part; 18, the second blocked part; 20, bent axle; 30, bearing suspension module; 31, throttling passage; 34, suspension support part door; 340, lever piece; 341, thread section; 342, bent axle through hole; 40, the first inlet hole; 50, the second inlet hole; 60, protruding structure; 70, solenoid valve; 80, admission line.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 2, according to an embodiment of the present utility model, provide a kind of pump body structure, comprise bearing support 10, bent axle 20 and bearing suspension module 30.Bent axle 20 is arranged in bearing support 10.Bearing suspension module 30 is arranged in bearing support 10, bearing suspension module 30 is provided with throttling passage 31, and throttling passage 31 is in state of suspension to make bent axle 20 when rotating for passing into gas.
In the present embodiment, comprising bearing support 10 and bent axle 20 at pump body structure, by arranging bearing suspension module 30 in pump body structure, bearing suspension module 30 being provided with throttling passage 31.Throttling passage 31 is in state of suspension to make bent axle 20 when rotating for passing into gas.Make the bent axle in pump body structure be in state of suspension when rotating, thus reduce the damage that bent axle 20 causes when rotated.The pump body structure of the gas bearing mode that the utility model adopts is pollution-free, and precision is high, is applicable to high-revolving environmental conditions.Again because gas viscosity is only a thousandth of oil viscosity, the friction torque that the friction torque brought by air film is brought far below oil film, therefore the perturbed force of pump body structure of the present utility model to bent axle is less, and the loss of power is also less, makes the pump body structure with this structure have better performance.
In the present embodiment, bearing support 10 is provided with the mounting hole 11 for holding bearing suspension module 30 along its axial direction, and throttling passage 31 is included in the throttling passage 31 that the perisporium of bearing suspension module 30 is offered, and throttling passage 31 is connected with mounting hole 11.Make gas can enter into throttling passage 31 by mounting hole 11 smoothly like this, thus make that there is between bearing suspension module 30 and bent axle 20 enough gas pressures and be in state of suspension in the running to make bent axle, then reduce the damage that the friction between bent axle 20 and bearing support 10 causes.
In the present embodiment, that radial direction bearing support 10 is also provided with along mounting hole 11 is arranged and the first inlet hole 40 be connected with mounting hole 11.Be provided with like this and be beneficial to extraneous gas and smooth and easy convenience can drip and enter into bearing support and then provide the gas pressure needed for suspension for bent axle 20.
Wherein, throttling passage 31 is multiple.Be conducive to for bent axle 20 provides sufficient gas pressure.
The axis of throttling passage 31 is arranged along the radial direction of bearing suspension module 30.Be arranged so that the processing of bearing suspension module 30 is simple like this, convenient.
Preferably, multiple throttling passage 31 is arranged along the radial direction of institute's bearing suspension module 30 equably.Such setting can ensure that the gas pressure that bent axle is subject in the process of running is stablized constant all the time, thus ensure that the safety and reliability of pump body structure.Too increase the usefulness of pump body structure simultaneously.
Preferably, bearing suspension module 30 is circular cylinder.Arrange like this and ensure that bent axle 20 has better stability in the process of running.
In the present embodiment, bearing support 10 comprises disk body and is arranged on extension part on disk body, and the first inlet hole 40 to be arranged on disk body and to be connected with mounting hole 11.What such setting reduced the first inlet hole 40 arranges difficulty, makes whole pump body structure have good runnability.
In the present embodiment, bearing support 10 comprises upper bearing bracket 12 and step 13, and step 13 is positioned at the below of upper bearing bracket 12.The axis of upper bearing bracket 12 is provided with the first mounting hole 14, and step 13 has the second mounting hole 16, and bearing suspension module 30 to be arranged in upper bearing bracket 12 and step 13 and between bent axle 20 and upper bearing bracket 12, step 13.Such setting can reduce the frictionally damage between bent axle 20 and bearing support 10 to greatest extent.Certainly, bearing suspension module 30 also can be only arranged in upper bearing bracket 12 or step 13 and between bent axle 20 and upper bearing bracket 12, step 13.
In the present embodiment, bearing suspension module 30 is arranged along the circumference of the first mounting hole 14 and the second mounting hole 16, the external diameter of bearing suspension module 30 is less than the internal diameter of the first mounting hole 14 and the second mounting hole 16, the outer wall of bearing suspension module 30 and form toroidal cavity 15 between the first mounting hole 14 and the inwall of the second mounting hole 16.Be arranged so that bearing suspension module 30 like this and between the first mounting hole 14 and the second mounting hole 16, there is enough gas pressures, thus make the gas in toroidal cavity 15 can endlessly for levitation pressure required when bent axle 20 operates provides gas pressure, arranging toroidal cavity 15 can make the gas flowing into throttling passage 31 tend towards stability, thus ensure that entering throttling passage 31 has stable speed, and then improve the stability of bent axle 20.
Certainly, also the circumference of bearing suspension module 30 along the first mounting hole 14 or the second mounting hole 16 can be arranged, the external diameter of bearing suspension module 30 is less than the internal diameter of the first mounting hole 14 or the second mounting hole 16, forms toroidal cavity 15 between the outer wall of bearing suspension module 30 and the inwall of the first mounting hole 14 or the second mounting hole 16.
In the present embodiment, the disk body of step 13 is provided with the second inlet hole 50 be connected with mounting hole 11.Such setting improves the stability during running of bent axle 20 further.What bearing suspension module 30 was supporting is assemblied in bearing support 10.Gas enters the gap of bearing suspension module 30 and bearing support 10 by the first inlet hole 40, second inlet hole 50, then enters into the gap of bent axle 20 and bearing suspension module 30 to form air supporting power by throttling passage 31.
In the present embodiment, the opening at the inwall two ends of the first mounting hole 14 or the second mounting hole 16 is provided with the protruding structure 60 of annular, and the internal diameter of protruding structure 60 is less than the internal diameter of the first mounting hole 14 or the second mounting hole 16.When being arranged so that bearing suspension module 30 is assemblied in the first mounting hole 14 or the second mounting hole 16 like this, make, between bearing suspension module 30 and the first mounting hole 14 or the second mounting hole 16, there is the gas being large enough to hold and coming in from the first inlet hole 40 or the second suction port.Thus enhance the internal intensity of pump body structure, thus provide effective gas pressure for bent axle 20 rotates.Certainly, protruding structure 60 also can be arranged on the inwall of the first mounting hole 14 or the second mounting hole 16 simultaneously.
In the present embodiment, the bottom of the first mounting hole 14 is provided with the first blocked part 17, blocked part 17, first and extends internally towards the radial direction of the first mounting hole 14, and the internal diameter of the first blocked part 17 is less than the internal diameter of protruding structure 60.Bearing suspension module 30 can effectively be fixed on bearing support 10 by such setting.Also enhance the sealability between bearing suspension module 30 and the first mounting hole 14 simultaneously.
Further, the top of the second mounting hole 16 is provided with the second blocked part 18, blocked part 18, second and extends internally towards the radial direction of the second mounting hole 16, and the internal diameter of the second blocked part 18 is less than the internal diameter of protruding structure 60.Bearing suspension module 30 can effectively be fixed on bearing support 10 by such setting.Also enhance the sealability between bearing suspension module 30 and the second mounting hole 16 simultaneously.
In the present embodiment, bearing suspension module 30 also comprises suspension support part door 34, and the top that suspension support part door 34 is arranged on the first mounting hole 14 is deviate to prevent bearing suspension module 30.Bearing suspension module 30 can effectively be fixed on bearing support 10 by such setting.
Wherein, suspension support part door 34 comprise lever piece 340; Thread section 341 and bent axle through hole 432.Thread section 341 is connected with lever piece 340, and the external diameter of thread section 341 is less than the external diameter of lever piece 340.The bent axle through hole 432 suitable with bent axle 20 is offered along lever piece 340 and the axial direction of thread section 341.Such setting can effectively by fixing being arranged on bearing support 10 of bearing suspension module 30.In the present embodiment, bent axle 20 is arranged in bent axle through hole 432, and thread section 341 is provided with screw thread, and is screwed in bearing support 10 thread section 341 with rigid bearing suspension module 30 by lever piece 340.
Preferably, lever piece 430 cross section in polygonal or rounded.Effectively raise the fastening performance of suspension support part door 34 like this.
The pump body structure of appeal can also be used on the compressor, and namely this compressor comprises the pump body structure of appeal.This compressor also comprises admission line 80 and solenoid valve 70.Admission line 80 has first end and the second end, and first end is connected with the exhaust cavity of compressor, and the second end is connected with the second inlet hole 50 with the first inlet hole 40 of pump body structure respectively.Solenoid valve 70 is arranged on admission line 80.Wherein, admission line 80 also can only be arranged on offer the first inlet hole 40 or the second inlet hole 50 bearing support on.And the bottom of the step 13 of compressor is fixed by bottom silencer.
In the present embodiment, the compressor with pump body structure of the present utility model only needs a small amount of oil for the sealing in pump housing gap, and bearing no longer needs oil lubrication, decreases the cost of lubricant oil.
Pressurized gas enter in bearing support 10 by inlet hole, distribution of gas is in bearing support 10 gap with bearing suspension module 30, gas is by the throttling action of throttling passage 31, pressurized gas enters in air film gap, and form one deck pressure air film, for a title bearing suspension module 30 i.e. bearing, then gas is along the radial direction effluent gases intermembrane space of bearing, then discharges from compressor discharge chamber.
Bearing is loaded in bearing support 10, and adopted by upper bearing bracket 12 suspension support part door 34 to fix.Step 13 adopts bottom silencer to fix, and can complete the assembling of bearing.To revolve bent axle 20, piston loads, after the screw lock pump housing, pump body structure has assembled.Adopt gas lubrication principle, improve rotary compressor bearing support mode, design ap-plication, in the gas bearing scheme of compressor, adopts the pressurized gas of compressor own, can take away the heat in bearing rotary process, gas coolant is at the pressurized gas provided needed for bent axle 20 of compressor Inner eycle.This compressor adopts gas lubrication, makes bearing not re-use oil lubrication, reduces the user cost of compressor.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
Application the technical solution of the utility model, comprising bearing support and bent axle at pump body structure, by arranging bearing suspension module in pump body structure, bearing suspension module being provided with throttling passage.Throttling passage is used for passing into gas and is in state of suspension to make bent axle when rotating.Make the bent axle in pump body structure be in state of suspension when rotating, thus reduce the damage that bent axle causes when rotated.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (21)
1. a pump body structure, is characterized in that, comprising:
Bearing support (10);
Bent axle (20), is arranged in bearing support (10);
Bearing suspension module (30), be arranged in described bearing support (10), described bearing suspension module (30) is provided with throttling passage (31), and described throttling passage (31) is in state of suspension to make described bent axle (20) when rotating for passing into gas.
2. pump body structure according to claim 1, it is characterized in that, described bearing support (10) is provided with the mounting hole (11) for holding bearing suspension module (30) along its axial direction, described throttling passage (31) is included in the throttling passage (31) that the perisporium of described bearing suspension module (30) is offered, and described throttling passage (31) is connected with described mounting hole (11).
3. pump body structure according to claim 2, it is characterized in that, that the radial direction described bearing support (10) is also provided with along described mounting hole (11) is arranged and the first inlet hole (40) be connected with described mounting hole (11).
4. pump body structure according to claim 3, is characterized in that, described throttling passage (31) is for multiple.
5. pump body structure according to claim 4, is characterized in that, the axis of described throttling passage (31) is arranged along the radial direction of described bearing suspension module (30).
6. pump body structure according to claim 4, is characterized in that, described multiple throttling passage (31) is arranged along the circumferential direction of institute's bearing suspension module (30) equably.
7. pump body structure according to claim 3, is characterized in that, bearing suspension module (30) is circular cylinder.
8. pump body structure according to claim 3, it is characterized in that, described bearing support (10) comprises disk body and is arranged on extension part on described disk body, and described first inlet hole (40) to be arranged on described disk body and to be connected with described mounting hole (11).
9. pump body structure according to claim 3, it is characterized in that, described bearing support (10) comprises upper bearing bracket (12) and step (13), and described step (13) is positioned at the below of described upper bearing bracket (12).
10. pump body structure according to claim 9, it is characterized in that, the axis of described upper bearing bracket (12) is provided with the first mounting hole (14), described step (13) has the second mounting hole (16), and described bearing suspension module (30) to be arranged in described upper bearing bracket (12) and/or step (13) and to be positioned between described bent axle (20) and described upper bearing bracket (12), described step (13).
11. pump body structures according to claim 10, it is characterized in that, described bearing suspension module (30) is arranged along the circumference of described first mounting hole (14) and/or described second mounting hole (16), the external diameter of described bearing suspension module (30) is less than the internal diameter of described first mounting hole (14) and/or described second mounting hole (16), forms toroidal cavity (15) between the outer wall of described bearing suspension module (30) and the inwall of described first mounting hole (14) and/or described second mounting hole (16).
12. pump body structures according to claim 11, is characterized in that, the disk body of described step (13) are provided with the second inlet hole (50) be connected with described mounting hole (11).
13. pump body structures according to claim 10, it is characterized in that, the opening at the inwall two ends of described first mounting hole (14) and/or described second mounting hole (16) is provided with the protruding structure (60) of annular, and the internal diameter of described protruding structure (60) is less than the internal diameter of described first mounting hole (14) and/or described second mounting hole (16).
14. pump body structures according to claim 13, it is characterized in that, the bottom of described first mounting hole (14) is provided with the first blocked part (17), described first blocked part (17) extends internally towards the radial direction of described first mounting hole (14), and the internal diameter of described first blocked part (17) is less than the internal diameter of described protruding structure (60).
15. pump body structures according to claim 14, it is characterized in that, the top of described second mounting hole (16) is provided with the second blocked part (18), described second blocked part (18) extends internally towards the radial direction of described second mounting hole (16), and the internal diameter of described second blocked part (18) is less than the internal diameter of described protruding structure (60).
16. pump body structures according to claim 10, it is characterized in that, described bearing suspension module (30) also comprises suspension support part door (34), and the top that described suspension support part door (34) is arranged on described first mounting hole (14) is deviate to prevent described bearing suspension module (30).
17. pump body structures according to claim 16, is characterized in that, described suspension support part door (34) comprising:
Lever piece (340);
Thread section (341), is connected with described lever piece (340), and the external diameter of described thread section (341) is less than the external diameter of described lever piece (340);
Wherein, the bent axle through hole (432) suitable with described bent axle (20) is offered along described lever piece (340) and the axial direction of described thread section (341).
18. pump body structures according to claim 17, is characterized in that, the cross section of described lever piece (430) in polygonal or rounded.
19. 1 kinds of compressors, comprise pump body structure, it is characterized in that, described pump body structure is the pump body structure described in any one of claim 1 to 18.
20. compressors according to claim 19, is characterized in that, also comprise:
Admission line (80), there is first end and the second end, described first end is connected with the exhaust cavity of described compressor, and described second end is connected with first inlet hole (40) of described pump body structure and/or the second inlet hole (50) respectively;
Solenoid valve (70), is arranged on described admission line (80).
21. compressors according to claim 19, is characterized in that, the bottom of the step (13) of described compressor is fixed by bottom silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763187.0U CN205025766U (en) | 2015-09-25 | 2015-09-25 | Pump body structure and have its compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763187.0U CN205025766U (en) | 2015-09-25 | 2015-09-25 | Pump body structure and have its compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025766U true CN205025766U (en) | 2016-02-10 |
Family
ID=55258304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520763187.0U Withdrawn - After Issue CN205025766U (en) | 2015-09-25 | 2015-09-25 | Pump body structure and have its compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090040A (en) * | 2015-09-25 | 2015-11-25 | 珠海凌达压缩机有限公司 | Pump body structure and compressor having same |
-
2015
- 2015-09-25 CN CN201520763187.0U patent/CN205025766U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090040A (en) * | 2015-09-25 | 2015-11-25 | 珠海凌达压缩机有限公司 | Pump body structure and compressor having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160210 Effective date of abandoning: 20180417 |
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| AV01 | Patent right actively abandoned |