CN203051313U - Hydraulic pressure station - Google Patents
Hydraulic pressure station Download PDFInfo
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- CN203051313U CN203051313U CN 201320028496 CN201320028496U CN203051313U CN 203051313 U CN203051313 U CN 203051313U CN 201320028496 CN201320028496 CN 201320028496 CN 201320028496 U CN201320028496 U CN 201320028496U CN 203051313 U CN203051313 U CN 203051313U
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Abstract
The utility model provides a hydraulic pressure station which comprises a base. The base is fixedly connected with a first hydraulic system and a second hydraulic system. By means of the scheme, the hydraulic pressure station can be applied to the test procedure of a hydraulic power steering system. The first hydraulic system can imitate the function of a steering pump and is used for the test work of a hydraulic steering system without the steering pump. The second hydraulic system is used for the test work of a hydraulic steering system with the steering pump. Meanwhile, the steering pump which is used as a core element of the hydraulic steering system can be tested.
Description
Technical field
The utility model relates to the hydraulic power-assist steering system technical field of measurement and test, relates in particular to a kind of hydraulic station.
Background technique
Steering system is one of Motor Vehicle essential elements.At present, the general steering system that adopts hydraulic booster on the Motor Vehicle.Hydraulic power-assist steering system generally by steering column, steering pump, fuel reserve tank, turn to high low pressure oil pipe, commutator, steering linkages, steering ball pin etc. to form.Wherein, boost pump is the core parts of hydraulic power-assist steering system.
In hydraulic power-assist steering system research and development and production process, generally need detect by the performance of testing apparatus to hydraulic power-assist steering system.
In test process, need respectively to the band steering pump steering system and do not test with the steering system of steering pump.When the test case that occurs not with steering pump, then need hydraulic station to provide the hydraulic oil of simulation to export to substitute the function of steering pump.But, also do not have a kind of Hydraulically Operated Equipment that can be applied to above-mentioned test process at present.
The model utility content
Provide hereinafter about brief overview of the present utility model, in order to basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its purpose only is that the form of simplifying provides some concept, with this as the preorder of discussing after a while in greater detail.
The utility model provides a kind of can provide hydraulically powered hydraulic station for testing apparatus and hydraulic power-assist steering system.
The utility model provides a kind of hydraulic station, comprises pedestal, is fixedly connected with first hydraulic system and second hydraulic system on the described pedestal;
Described first hydraulic system comprises:
First fuel tank, described first fuel tank has first filler opening and first oil outlet, and described first oil outlet connects first oil pump, and the oil outlet of described first oil pump connects first selector valve;
Described first selector valve has the first main filler opening, the first work filler opening, first work return opening and the first main return opening, the described first main filler opening is connected with the oil outlet of described first oil pump, the described first main return opening is connected with described first filler opening, and the described first work filler opening and the described first work return opening are used for corresponding connection of first power unit with the outside;
Described second hydraulic system comprises:
Second fuel tank, described second fuel tank has second filler opening and second oil outlet, and described second oil outlet connects second oil pump, and the oil outlet of described second oil pump connects proportional flow control valve;
Described proportional flow control valve has ratio work filler opening, ratio work return opening and ratio master filler opening, and described ratio master's filler opening is connected with the oil outlet of described second oil pump, and described ratio work return opening is connected with described second filler opening;
Second selector valve, have the second main filler opening, the second work filler opening, second work return opening and the second main return opening, the described second main filler opening is connected with described ratio work filler opening, the described second main return opening is connected with described second filler opening, and the described second work filler opening and the described second work return opening are used for corresponding connection of second power unit with the outside.。
The hydraulic station that the utility model provides is applied in the test process of hydraulic power-assist steering system, and first hydraulic system can be simulated the function of steering pump, for the test job of the hydraulic steering system that does not have steering pump.Second hydraulic system can be tested the core parts-steering pump of hydraulic steering system for the test job of the hydraulic steering system that steering pump is arranged simultaneously.
Description of drawings
With reference to below in conjunction with the explanation of accompanying drawing to the utility model embodiment, can understand above and other purpose of the present utility model, characteristics and advantage more easily.Parts in the accompanying drawing are just in order to illustrate principle of the present utility model.In the accompanying drawings, same or similar technical characteristics or parts will adopt identical or similar reference character to represent.
The structural representation of the hydraulic station that Fig. 1 provides for the utility model embodiment;
First hydraulic system principle figure of the hydraulic station that Fig. 2 provides for the utility model embodiment;
Second hydraulic system principle figure of the hydraulic station that Fig. 3 provides for the utility model embodiment.
Description of reference numerals:
First pressure gauge-1; First pressure transducer-2; First flow meter-3;
First relief valve-4; First safety valve-5; First oil pump-6;
First temperature transducer-8; Primary heater-9; First liquid level sensor-10;
First air filter-11; First heat exchanger-12; First filter-13;
The 3rd selector valve-14; First selector valve-15; First vacuum pressure sensor-16;
First one-way valve-17; The 4th selector valve-18; Second pressure gauge-21;
Second pressure transducer-22; Second flowmeter-23; Second relief valve-24;
Second filter-25; Second oil pump-26; Second temperature transducer-28;
Secondary heater-29; Second liquid level sensor-30; Second air filter-31;
Second heat exchanger-32; The 6th selector valve-33; The 5th selector valve-34;
Second selector valve-35; Second vacuum pressure sensor second one-way valve-37;-36;
Proportional flow control valve-38; Pedestal-101; Second hydraulic system-201;
First hydraulic system-301; Castor-401; First main filler opening-P1;
First work filler opening-A1; First work return opening-B1; First main return opening-T1;
Ratio work filler opening-A; Ratio work return opening-B; Ratio master filler opening-P;
Second main filler opening-P2; Second work filler opening-A2; Second work return opening-B2;
First pipeline-T11; The 3rd work filler opening-A3; The 3rd work return opening-B3;
The 3rd main filler opening-P3; The 4th main filler opening-P4; The 4th work filler opening-A4;
The 4th work return opening-B4; The 5th main filler opening-P5; The 5th work filler opening-A5;
The 5th work return opening-B5; The 6th main filler opening-P6; The 6th work filler opening-A6;
The 6th work return opening-B6.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present utility model or a kind of mode of execution and feature can combine with element and the feature shown in one or more other accompanying drawing or the mode of execution.Should be noted that for purpose clearly, omitted in accompanying drawing and the explanation and the utility model parts irrelevant, that those of ordinary skills are known and expression and the description of processing.
The structural representation of the hydraulic station that Fig. 1 provides for the utility model embodiment; First hydraulic system principle figure of the hydraulic station that Fig. 2 provides for the utility model embodiment; Second hydraulic system principle figure of the hydraulic station that Fig. 3 provides for the utility model embodiment; As shown in Figure 1-Figure 3, the hydraulic station that the utility model embodiment provides comprises pedestal 101, is fixedly connected with first hydraulic system 301 and second hydraulic system 201 on the pedestal 101; First hydraulic system 301 comprises first fuel tank, and first fuel tank has first filler opening and first oil outlet, and the oil outlet that first oil outlet connects first oil pump, 6, the first oil pumps 6 connects first selector valve 15; First selector valve 15 has the first main oil inlet P 1, the first work filler opening A1, first work return opening B1 and the first main oil return inlet T 1, the first main oil inlet P 1 is connected with the oil outlet of first oil pump 6, the first main oil return inlet T 1 is connected with first filler opening, and the first work filler opening A1 and the first work return opening B1 are used for corresponding connection of first power unit with the outside; Second hydraulic system 201 comprises second fuel tank, and second fuel tank has second filler opening and second oil outlet, and the oil outlet that second oil outlet connects second oil pump, 26, the second oil pumps 26 connects proportional flow control valve 38; Proportional flow control valve 38 has ratio work filler opening A, ratio work return opening B and ratio master oil inlet P, and ratio master's oil inlet P is connected with the oil outlet of second oil pump 26, and ratio work return opening B is connected with second filler opening; Second selector valve 35, have the second main oil inlet P 2, the second work filler opening A2, second work return opening B2 and the second main oil return inlet T 2, the second main oil inlet P 2 is connected with ratio work filler opening A, the second main oil return inlet T 2 is connected with second filler opening, the second work filler opening A2 and the second work return opening B2 be used for corresponding connection of second power unit.
The hydraulic station of such scheme is applied in the test process of hydraulic power-assist steering system, and first hydraulic system 301 can be simulated the function of steering pump, for the test job of the hydraulic steering system that does not have steering pump.Second hydraulic system 201 can be tested the core parts-steering pump of hydraulic steering system for the test job of the hydraulic steering system that steering pump is arranged simultaneously.
Wherein, first power unit can be testing apparatus, and second power unit can be hydraulic power-assist steering system.
First hydraulic system 301 and second hydraulic system 201 are integrated on the same pedestal 101, and be simple in structure, integrated higher.Further, based on above-described embodiment, in specific test process, need monitor the flow of the hydraulic oil in first hydraulic system 301 in the test process, then in first hydraulic system 301, also be provided with the 3rd selector valve 14, first flow meter 3 and first one-way valve 17; Wherein, the 3rd selector valve 14 has the 3rd main oil inlet P 3, the 3rd work filler opening A3 and the 3rd work return opening B3, the 3rd main oil inlet P 3 is connected with the oil outlet of first oil pump 6, the 3rd work filler opening A3 is connected with the first main oil inlet P 1, the 3rd work return opening B3 is connected with the filler opening of first flow meter 3, the oil outlet of first flow meter 3 is connected with the filler opening of first one-way valve 17, and the oil outlet of first one-way valve 17 is connected with the first main oil inlet P 1.Because first flow meter 3 is accurate devices, then controls the conducting of first flow meter 3 by the 3rd selector valve 14.Under normal conditions; the oil circuit of first flow meter 3 is obstructed, only under the situation of used oil mass, just makes oil circuit by first flow meter 3 by the 3rd selector valve 14 in needing the precision monitor test; can effectively protect first flow meter 3 like this, guarantee the working life of first flow meter 3.
First one-way valve 17 can adopt board-like one-way valve.
Further, based on above-described embodiment, for the test environment of a super-high oil temperature is provided, for example 150 ℃ test environment also arranges first safety valve 5, first heat exchanger 12 and primary heater 9 in first hydraulic system 301; The filler opening of first safety valve 5 is connected with the oil outlet of first oil pump 6, and the oil outlet of first safety valve 5 is connected with first filler opening by the first pipeline T11, and first heat exchanger 12 is fixedly connected on outside the first pipeline T11; The heating unit of primary heater 9 is positioned at first fuel tank.
Wherein, first safety valve 5 can be the high temperature safe valve.
In oil temperature, when oil pressure is too high, connect the oil circuit conducting of first safety valve 5, fluid is through first pipeline T11 loop to the first fuel tank, during through the first pipeline T11, through the heat exchange action of first heat exchanger 12, makes the temperature of fluid reduce at fluid.
When the oil temperature is low, can heat by the fluid in 9 pairs of first fuel tanks of primary heater, to reach the required temperature of test.
Further, based on above-described embodiment, for stability and the Security that improves system, first hydraulic system 301 also comprises first relief valve 4 and the 4th selector valve 18; The filler opening of first relief valve 4 is connected with the first main oil inlet P 1, and the oil outlet of first relief valve 4 is connected with the first main oil return inlet T 1; The 4th selector valve 18 has the 4th main oil inlet P 4, the 4th work filler opening A4 and the 4th work return opening B4, the 4th main oil inlet P 4 is connected with the first main oil return inlet T 1, the 4th work filler opening A4 is connected with the first pipeline T11, and the 4th work return opening B4 is connected with first filler opening.
In the oil temperature, when oil pressure is too high, connect the oil circuit conducting of first relief valve 4, wherein, first relief valve 4 can be the high temperature relief valve, by the 4th selector valve 18 flow through first heat exchanger 12 or first heat exchanger 12 of not flowing through of fluid is entered in first fuel tank.If oil temperature is too high, then by the first pipeline T11, first heat exchanger 12 of flowing through, fluid is cooled off.
Further, based on above-described embodiment, be provided with first liquid level sensor 10 in first fuel tank, can Real Time Observation to the first fuel tank inner fluid amount, has first vent on the top of first fuel tank, can be so that fluid mobile more smooth and easy, first vent is connected with first air filter 11, can prevent that airborne large particle dirt from entering in first fuel tank and pollute fluid.
Also have, can be connected with first filter 13 at the oil outlet of first oil pump 6, fluid is filtered, make the fluid that enters oil-way system comparatively clean, can protect the components and parts in the whole hydraulic system, prolong the working life of each components and parts.
Further, based on above-described embodiment, in specific test process, need monitor the flow of the hydraulic oil in second hydraulic system 201 in the test process, then second hydraulic system 201 also comprises the 5th selector valve 34, second flowmeter 23 and second one-way valve 37; The 5th selector valve 34 has the 5th main oil inlet P 5, the 5th work filler opening A5 and the 5th work return opening B5, the 5th main oil inlet P 5 is connected with ratio work filler opening A, the 5th work filler opening A5 is connected with the second main oil inlet P 2, the 5th work return opening B5 is connected with the filler opening of second flowmeter 23, the oil outlet of second flowmeter 23 is connected with the filler opening of second one-way valve 37, and the oil outlet of second one-way valve 37 is connected with the second main oil inlet P 2.Because second flowmeter 23 is accurate devices, then controls the conducting of second flowmeter 23 by the 5th selector valve 34.Under normal conditions; the oil circuit of second flowmeter 23 is obstructed, only under the situation of used oil mass, just makes oil circuit pass through second flowmeter 23 by the 5th selector valve 34 in needing the precision monitor test; can effectively protect second flowmeter 23 like this, guarantee the working life of second flowmeter 23.
Second one-way valve 37 can adopt board-like one-way valve.
Further, based on above-described embodiment, for the test environment of a super-high oil temperature is provided, 150 ℃ test environment for example, second hydraulic system 201 also comprises second relief valve 24, second heat exchanger 32 and secondary heater 29; The filler opening of second relief valve 24 is connected with ratio master oil inlet P, and the oil outlet of second relief valve 24 is connected with second filler opening by second pipeline, and second heat exchanger 32 is fixedly connected on outside second pipeline; The heating unit of secondary heater 29 is positioned at second fuel tank.
Wherein, second relief valve 24 can be the high temperature safe valve.
In oil temperature, when oil pressure is too high, connect the oil circuit conducting of second relief valve 24, fluid is through second pipeline loop to the second fuel tank, during through second pipeline, through the heat exchange action of second heat exchanger 32, makes the temperature of fluid reduce at fluid.
When the oil temperature is low, can heat by the fluid in 29 pairs of second fuel tanks of secondary heater, to reach the required temperature of test.
Further, based on above-described embodiment, for stability and the Security that improves system, second hydraulic system 201 also comprises the 6th selector valve 33, the 6th selector valve 33 has the 6th main oil inlet P 6, the 6th work filler opening A6 and the 6th work return opening B6, the 6th main oil inlet P 6 is connected with ratio work return opening B, and the 6th work filler opening A6 is connected with second pipeline, and the 6th work return opening B6 is connected with second filler opening.
In the oil temperature, when oil pressure is too high, connect the oil circuit conducting of second relief valve 24, wherein, second relief valve 24 can be the high temperature relief valve, by the 6th selector valve 33 flow through second heat exchanger 32 or second heat exchanger 32 of not flowing through of fluid is entered in second fuel tank.If oil temperature is too high, then by second pipeline, second heat exchanger 32 of flowing through, fluid is cooled off.
Further, based on above-described embodiment, be provided with second liquid level sensor 30 in second fuel tank, can Real Time Observation to the second fuel tank inner fluid amount, has second vent on the top of second fuel tank, can be so that fluid mobile more smooth and easy, second vent is connected with second air filter 31, can prevent that airborne large particle dirt from entering in second fuel tank and pollute fluid.
Also have, can be connected with second filter 25 at the oil outlet of second oil pump 26, fluid is filtered, make the fluid that enters oil-way system comparatively clean, can protect the components and parts in the whole hydraulic system, prolong the working life of each components and parts.
Further, based on above-described embodiment, for the ease of mobile this hydraulic station, then below pedestal 101, be fixedly connected with castor 401, owing to be provided with castor 401, can promote this hydraulic station eaily and carry out the position and move.
Each selector valve among each embodiment of the utility model all can be solenoid directional control valve.
The hydraulic station that the utility model embodiment provides can provide the limit test condition of 150 ℃ and 8000 rev/mins.
In addition, in order to measure the temperature in first fuel tank, then connected first temperature transducer 8 on first fuel tank, in order to measure the temperature in second fuel tank, then connected second temperature transducer 28 on second fuel tank, the pipeline that connects at first oil outlet has connected first vacuum pressure sensor 16, the pipeline that connects at second oil outlet has connected second vacuum pressure sensor 36, connect first pressure gauge 1 and first pressure transducer 2 at the pipeline that is connected with the first main oil inlet P 1, connected second pressure gauge 21 and second pressure transducer 22 at the pipeline that is connected with ratio work filler opening A.
First oil pump 6 is driven by first motor M 1, and second oil pump 26 is driven by second motor M 2.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (10)
1. a hydraulic station comprises pedestal, it is characterized in that, is fixedly connected with first hydraulic system and second hydraulic system on the described pedestal;
Described first hydraulic system comprises:
First fuel tank, described first fuel tank has first filler opening and first oil outlet, and described first oil outlet connects first oil pump, and the oil outlet of described first oil pump connects first selector valve;
Described first selector valve has the first main filler opening, the first work filler opening, first work return opening and the first main return opening, the described first main filler opening is connected with the oil outlet of described first oil pump, the described first main return opening is connected with described first filler opening, and the described first work filler opening and the described first work return opening are used for corresponding connection of first power unit with the outside;
Described second hydraulic system comprises:
Second fuel tank, described second fuel tank has second filler opening and second oil outlet, and described second oil outlet connects second oil pump, and the oil outlet of described second oil pump connects proportional flow control valve;
Described proportional flow control valve has ratio work filler opening, ratio work return opening and ratio master filler opening, and described ratio master's filler opening is connected with the oil outlet of described second oil pump, and described ratio work return opening is connected with described second filler opening;
Second selector valve, have the second main filler opening, the second work filler opening, second work return opening and the second main return opening, the described second main filler opening is connected with described ratio work filler opening, the described second main return opening is connected with described second filler opening, and the described second work filler opening and the described second work return opening are used for corresponding connection of second power unit with the outside.
2. hydraulic station according to claim 1 is characterized in that, comprises that also the 3rd selector valve, first flow take into account first one-way valve;
Described the 3rd selector valve has the 3rd main filler opening, the 3rd work filler opening and the 3rd work return opening, the described the 3rd main filler opening is connected with the oil outlet of described first oil pump, described the 3rd work filler opening is connected with the described first main filler opening, described the 3rd work return opening is connected with the filler opening of described first flow meter, the oil outlet of described first flow meter is connected with the filler opening of described first one-way valve, and the oil outlet of described first one-way valve is connected with the described first main filler opening.
3. hydraulic station according to claim 1 is characterized in that, also comprises first safety valve, first heat exchanger and primary heater;
The filler opening of described first safety valve is connected with the oil outlet of described first oil pump, and the oil outlet of described first safety valve is connected with described first filler opening by first pipeline, and described first heat exchanger is fixedly connected on outside described first pipeline;
The heating unit of described primary heater is positioned at described first fuel tank.
4. hydraulic station according to claim 3 is characterized in that, also comprises first relief valve and the 4th selector valve;
The filler opening of described first relief valve is connected with the described first main filler opening, and the oil outlet of described first relief valve is connected with the described first main return opening;
Described the 4th selector valve has the 4th main filler opening, the 4th work filler opening and the 4th work return opening, the described the 4th main filler opening is connected with the described first main return opening, described the 4th work filler opening is connected with described first pipeline, and described the 4th work return opening is connected with described first filler opening.
5. hydraulic station according to claim 1 is characterized in that, is provided with first liquid level sensor in described first fuel tank, and the top of described first fuel tank has first vent, and described first vent is connected with first air filter; And/or,
The oil outlet of described first oil pump is connected with first filter.
6. according to the arbitrary described hydraulic station of claim 1-5, it is characterized in that, comprise that also the 5th selector valve, second flow take into account second one-way valve;
Described the 5th selector valve has the 5th main filler opening, the 5th work filler opening and the 5th work return opening, the described the 5th main filler opening is connected with described ratio work filler opening, described the 5th work filler opening is connected with the described second main filler opening, described the 5th work return opening is connected with the filler opening of described second flowmeter, the oil outlet of described second flowmeter is connected with the filler opening of described second one-way valve, and the oil outlet of described second one-way valve is connected with the described second main filler opening.
7. according to the arbitrary described hydraulic station of claim 1-5, it is characterized in that, also comprise second relief valve, second heat exchanger and secondary heater;
The filler opening of described second relief valve is connected with described ratio master's filler opening, and the oil outlet of described second relief valve is connected with described second filler opening by second pipeline, and described second heat exchanger is fixedly connected on outside described second pipeline;
The heating unit of described secondary heater is positioned at described second fuel tank.
8. hydraulic station according to claim 7, it is characterized in that, also comprise the 6th selector valve, described the 6th selector valve has the 6th main filler opening, the 6th work filler opening and the 6th work return opening, the described the 6th main filler opening is connected with described ratio work return opening, described the 6th work filler opening is connected with described second pipeline, and described the 6th work return opening is connected with described second filler opening.
9. according to the arbitrary described hydraulic station of claim 1-5, it is characterized in that be provided with second liquid level sensor in described second fuel tank, the top of described second fuel tank has second vent, described second vent is connected with second air filter; And/or,
The oil outlet of described second oil pump is connected with second filter.
10. according to the arbitrary described hydraulic station of claim 1-5, it is characterized in that the below of described pedestal is fixedly connected with castor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028496 CN203051313U (en) | 2013-01-18 | 2013-01-18 | Hydraulic pressure station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028496 CN203051313U (en) | 2013-01-18 | 2013-01-18 | Hydraulic pressure station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051313U true CN203051313U (en) | 2013-07-10 |
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ID=48734271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028496 Expired - Lifetime CN203051313U (en) | 2013-01-18 | 2013-01-18 | Hydraulic pressure station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609781A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Gas making oil pump control device |
-
2013
- 2013-01-18 CN CN 201320028496 patent/CN203051313U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609781A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Gas making oil pump control device |
| CN106609781B (en) * | 2015-10-26 | 2018-12-28 | 安徽华尔泰化工股份有限公司 | A kind of gas making oil pump control apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 101102, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, King Sheng street, No. 20 Patentee after: BEIJING BBK TEST SYSTEMS CO.,LTD. Address before: 100000, Beijing, Tongzhou District, Majuqiao Sheng Wang street, No. 20 Patentee before: BEIJING BBK TESTING SYSTEMS Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |