CN201953072U - Engineering machine and pumping hopper apparatus thereof - Google Patents
Engineering machine and pumping hopper apparatus thereof Download PDFInfo
- Publication number
- CN201953072U CN201953072U CN2010206729258U CN201020672925U CN201953072U CN 201953072 U CN201953072 U CN 201953072U CN 2010206729258 U CN2010206729258 U CN 2010206729258U CN 201020672925 U CN201020672925 U CN 201020672925U CN 201953072 U CN201953072 U CN 201953072U
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- pumping
- contact
- hopper
- rotation
- magazine attachment
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Abstract
The utility model discloses a pumping hopper apparatus, comprising a hopper (1) and a fence (2) installed in the inner of the hopper (1); the outer wall of the hopper (1) is provided with a safety device (3) comprising a contact switch (31) in series connection with an interlock circuit of a pumping mechanism and a stirring mechanism of a pump trolley; the contact switch (31) comprises a static contact piece (311) and a moving contact piece (312) separating from or contact with the static contact piece (311) with the rotation of a turning axle (21); and the static contact piece (311) is in fixed connection with the outer wall of the hopper (1), and the moving contact piece (312) is in connection with the turning axle (21). The pumping hopper apparatus of the utility model has a simple structure and can stop the motion of a pumping mechanism and a stirring mechanism when a fence is raised. The utility model also discloses an engineering machine comprising the above apparatus.
Description
Technical field
The utility model relates to technical field of engineering machinery, especially relates to a kind of pumping magazine attachment that is used for engineering machinery.The utility model also relates to a kind of engineering machinery that comprises said pump feeding funnel device.
Background technology
Along with the fast development of economic construction, all kinds of major workss of China are increasing, and the demand for all kinds of engineering machinery on the market also increases day by day.
Concrete mixer is modal engineering machinery, is used for the concrete construction of engineerings such as railway and highway tunnel, bridges and culverts, water power, mine, highrise building and national defence.Concrete mixer is the machinery that utilizes pressure that concrete is carried continuously along pipeline, and concrete mixer is made up of pumping mechanism, rabbling mechanism and pump truck support system etc.Pumping mechanism partly is made up of hopper and pumping swing pipe etc.
Concrete mixer is when pumping of concrete, and the concrete that routinely tilts in hopper enters hopper for preventing big material, and the entrance is equipped with fence in the hopper, filters out bigger material by fence.In the course of work, operating personnel need raise fence, enter hopper, clear up and maintenance work, if the rabbling mechanism of concrete mixer, pumping swing pipe still move, can cause great injury to operating personnel's the person this moment when fence starts.Therefore, need the corresponding interlock of design, make when fence starts, pumping mechanism and rabbling mechanism can be simultaneously out of service, thereby guarantee operating personnel's personal safety.
In the prior art, adopt the switch direction valve of a machinery of serial connection in guide's control oil channel of rabbling mechanism and pumping mechanism mostly, this switch direction valve conducting control oil channel when fence lodges, when starting, fence disconnects control oil channel, pumping mechanism and rabbling mechanism are quit work, thereby guaranteed the reliability and the safety of pumping hopper.
Yet because the said apparatus complex structure, the switch valve of control oil channel usually blocks because of a variety of causes or damages, and when this device broke down, operating personnel were difficult to repair, and cause maintenance time longer, have had a strong impact on concrete pumping efficiency.
Therefore, how on the basis of existing technology, improve the structure of existing pump feeding funnel device, make this pumping magazine attachment can when fence starts, stop the operation of pumping mechanism and rabbling mechanism, and having characteristics simple in structure, easy maintenance, is those skilled in the art's urgent problem.
The utility model content
The technical problems to be solved in the utility model is for providing a kind of pumping magazine attachment, and this pumping magazine attachment can stop the operation of pumping mechanism and rabbling mechanism when fence starts, and has characteristics simple in structure, easy maintenance.Another technical problem to be solved in the utility model is for providing the engineering machinery that comprises said pump feeding funnel device.
For solving the problems of the technologies described above, the utility model provides a kind of pumping magazine attachment, comprises hopper and the fence that is installed on described hopper inside, and the axis of rotation of described fence extends described hopper outer wall; Described hopper outer wall is provided with safety device, and described safety device comprises contact-making switch, and described contact-making switch is serially connected with in the interlock circuit of the pumping mechanism of pump truck and rabbling mechanism; Described contact-making switch comprises static contact and the movable contact spring that separates or contact with the rotation of described axis of rotation and described static contact, and described static contact is fixedly connected on described hopper outer wall, and described movable contact spring is connected in described axis of rotation.
Preferably, described safety device also comprises transmission mechanism, and an end of described transmission mechanism is fixedly connected on described axis of rotation, and the other end of described transmission mechanism is fixedly connected on described movable contact spring.
Preferably, described transmission mechanism comprises cam and push rod, and described cam is set on the described axis of rotation and with described axis of rotation fixedlys connected, and an end of described push rod props up the edge of described cam, and the other end of described push rod is fixedly connected on described movable contact spring.
Preferably, described safety device also comprises support, and described support is fixedly connected on described hopper outer wall; Described static contact is installed on the both sides of described support, and described push rod laterally is plugged in the through hole of two described static contacts.
Preferably, described safety device also comprises response agency; Described push rod is fixedly connected with described movable contact spring in a side that is positioned at described internal stent, and described push rod is equipped with described response agency at the opposite side that is positioned at described internal stent.
Preferably, described response agency comprises spring and spring base, and described spring base is the insulated spring seat.
Preferably, described cam is the insulation cam, and described push rod is the insulation push rod.
Preferably, described contact-making switch is the bonding switch; Described static contact and described movable contact spring are the metal contact, and the bonding cable is connected in described movable contact spring.
Preferably, described safety device also comprises protective cover, and described protective cover is removably connected to described hopper outer wall, and covers described transmission mechanism, described contact-making switch and described response agency.
Pumping magazine attachment provided by the utility model, its hopper outer wall is provided with safety device, and safety device comprises contact-making switch, and contact-making switch is serially connected with in the interlock circuit of the pumping mechanism of pump truck and rabbling mechanism; Contact-making switch comprises the movable contact spring that static contact and rotation with axis of rotation separate or contact with static contact, and static contact is fixedly connected on the hopper outer wall, and movable contact spring is connected in axis of rotation.
Adopt the pumping magazine attachment of said structure, when operating personnel need enter hopper and carry out cleaning work, fence starts, the axis of rotation of fence rotates, and the movable contact spring that is connected in axis of rotation travels forward, and separates with static contact, contact-making switch disconnects, because contact-making switch is serially connected with in the interlock circuit of pumping mechanism and rabbling mechanism, the circuit of rabbling mechanism and pumping mechanism disconnects simultaneously, and rabbling mechanism and pumping mechanism are out of service.When fence puts down, the axial rotary rightabout of fence rotates, the movable contact spring that is connected in axis of rotation moves backward, contact with static contact, the contact-making switch closure, because contact-making switch is serially connected with in the interlock circuit of pumping mechanism and rabbling mechanism, the circuit of rabbling mechanism and pumping mechanism is closed simultaneously, and rabbling mechanism and pumping mechanism bring into operation.
This shows, this pumping magazine attachment makes when fence starts, pumping mechanism and rabbling mechanism can be simultaneously out of service, guaranteed to enter the operating personnel's of hopper work personal safety, and this pumping magazine attachment can only comprise contact-making switch, contact and the operation that separates control pumping mechanism and rabbling mechanism by static contact and movable contact spring have characteristics simple in structure, for ease of maintenaince.
The utility model also provides a kind of engineering machinery, comprises pumping mechanism; Described engineering machinery also comprises above-mentioned pumping magazine attachment, and described pumping magazine attachment is connected in the described pumping mechanism.
Because said pump feeding funnel device has above-mentioned technique effect, therefore, comprises that the engineering machinery of this pumping magazine attachment also has identical technique effect, does not repeat them here.
Description of drawings
Fig. 1 provides the perspective view of a kind of specific embodiment of pumping magazine attachment for the utility model;
Fig. 2 is the partial enlarged drawing of the safety device among Fig. 1;
Fig. 3 is the top plan view of Fig. 1;
Fig. 4 is the structural representation of the protective cover of the safety device among Fig. 1.
Wherein, the Reference numeral of Fig. 1 to Fig. 4 and the corresponding relation between the component names are:
1 hopper; 2 fence; 3 safety devices; 21 axis of rotation; 31 contact-making switches; 32 transmission mechanisms; 33 response agencies; 34 supports; 35 bases; 36 protective covers; 311 static contacts; 312 movable contact springs; 321 cams; 322 push rods; 331 springs; 332 spring bases.
The specific embodiment
Core of the present utility model is for providing a kind of pumping magazine attachment, and this pumping magazine attachment can stop the operation of pumping mechanism and rabbling mechanism when fence starts, and has characteristics simple in structure, easy maintenance.Another core of the present utility model is for providing a kind of engineering machinery that comprises said pump feeding funnel device.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 provides the perspective view of a kind of specific embodiment of pumping magazine attachment for the utility model; Fig. 2 is the partial enlarged drawing of the safety device 3 among Fig. 1; Fig. 3 is the top plan view of Fig. 1.
In a kind of concrete embodiment, as Fig. 1, Fig. 2 and shown in Figure 3, pumping magazine attachment provided by the utility model comprises hopper 1, fence 2 and safety device 3.Hopper 1 is the main element of pumping magazine attachment, and concrete mixer is when pumping of concrete, to hopper 1 inclination concrete; Fence 2 is installed in the hopper 1, and its axis of rotation 21 is positioned at the both sides of hopper 1 and extends the outer wall of hopper 1, and the purpose that fence 2 is set is in order to filter out relatively large material, only to allow piece material to enter hopper 1; It is in order to guarantee when fence 2 starts that safety device 3 is set, pumping mechanism and rabbling mechanism can be simultaneously out of service, this safety device 3 is installed on the outer wall of hopper 1, comprises contact-making switch 31, and contact-making switch 31 is serially connected with in the interlock circuit of the pumping mechanism of pump truck and rabbling mechanism; Contact-making switch 31 comprises the movable contact spring 312 that static contact 311 and rotation with axis of rotation 21 separate or contact with static contact 311, and static contact 311 is fixedly connected on hopper 1 outer wall, and movable contact spring 312 is connected in axis of rotation 21.
Adopt the pumping magazine attachment of said structure, when operating personnel need enter hopper 1 and carry out cleaning work, raise fence 2, the axis of rotation 21 of fence 2 rotates, and the movable contact spring 312 that is connected in axis of rotation 21 travels forward, and separates with described static contact 311, contact-making switch 31 disconnects, because contact-making switch 31 is serially connected with in the interlock circuit of pumping mechanism and rabbling mechanism, the circuit of rabbling mechanism and pumping mechanism disconnects simultaneously, and rabbling mechanism and pumping mechanism are out of service.When putting down fence 2, the axis of rotation 21 of fence 2 rotates round about, the movable contact spring 312 that is connected in axis of rotation 21 moves backward, contact with described static contact 311, contact-making switch 31 closures, because contact-making switch 31 is serially connected with in the interlock circuit of pumping mechanism and rabbling mechanism, the circuit of rabbling mechanism and pumping mechanism is closed simultaneously, and rabbling mechanism and pumping mechanism bring into operation.
This shows, this pumping magazine attachment makes when fence 2 starts, pumping mechanism and rabbling mechanism can be simultaneously out of service, guaranteed to enter the operating personnel's of hopper 1 work personal safety, and this pumping magazine attachment can only comprise contact-making switch 31, contact and the operation that separates control pumping mechanism and rabbling mechanism by static contact 311 and movable contact spring 312 have characteristics simple in structure, for ease of maintenaince.
Need to prove; the foregoing description does not limit the concrete annexation of movable contact spring 312 and axis of rotation 21, static contact 311 and hopper 1 outer wall; in fact; no matter movable contact spring 312 is directly to be connected or to connect indirectly with axis of rotation 21; every movable contact spring 312 is connected with axis of rotation 21; and, all should work as and belong in the protection domain of the present utility model with the rotation of axis of rotation 21 and static contact 311 contacts or the safety device 3 that separates.
In addition, the rotation direction of this paper axis of rotation 21 when concrete regulation fence 2 does not start, operating personnel can clockwise rotate axis of rotation 21 starts fence 2, also can rotate counterclockwise axis of rotation 21 starts fence 2, those skilled in the art can be by being provided with different directions, realize when fence 2 starts the effect that above-mentioned contact-making switch 31 disconnects.
The annexation of the movable contact spring 312 and the axis of rotation 21 of above-mentioned contact-making switch 31 can also further be set.
In further scheme, above-mentioned safety device 3 can also comprise transmission mechanism 32, and an end of transmission mechanism 32 is fixedly connected on axis of rotation 21, and the other end of transmission mechanism 32 is fixedly connected on movable contact spring 312.For example, as shown in Figure 2, this transmission mechanism 32 can comprise cam 321 and push rod 322, and cam 321 is set on the axis of rotation 21 and with axis of rotation 21 fixedlys connected, one end of push rod 322 props up the edge of cam 321, and the other end of push rod 322 is fixedly connected on movable contact spring 312.
As shown in Figure 2, when fence 2 started, the axis of rotation 21 of fence 2 rotated, and cam 321 also rotates thereupon, in this process, the radius of cam 321 changes from small to big, because an end of push rod 322 props up the edge of cam 321, cam 321 promotes push rod 322 and travels forward, and then the movable contact spring 312 that is connected in push rod 322 travels forward, separate with static contact 311, contact-making switch 31 disconnects, and the pumping mechanism of interlocking and rabbling mechanism are simultaneously out of service.When fence 2 puts down, axis of rotation 21 counter-rotation of fence 2, cam 321 is backward rotation thereupon also, and in this process, the radius of cam 321 from large to small, because an end of push rod 322 props up the edge of cam 321, push rod 322 moves backward with cam 321, and then the movable contact spring 312 that is fixedly connected on push rod 322 moves backward, contacts with static contact 311, contact-making switch 31 closures, the pumping mechanism and the rabbling mechanism of interlocking bring into operation simultaneously.
Certainly, above-mentioned transmission mechanism 32 is not limited to cam mechanism, also can adopt linkage, one end of linkage is connected in axis of rotation 21, the other end is connected in the movable contact spring 312 of contact-making switch 31, the rotation of axis of rotation 21 drives connecting rod mechanism movement, moves back and forth thereby drive movable contact spring 312, further realizes the closed or disconnection of contact-making switch 31.
Need to prove; the noun of locality of Chu Xianing " preceding " refers to from axis of rotation 21 to contact-making switch 31 direction herein; it is from left to right direction in the Figure of description; the noun of locality " back " refers to from contact-making switch 31 to axis of rotation 21 direction; it is dextrosinistral direction in the Figure of description; should be appreciated that the noun of locality that occurs herein all to be that benchmark is set up in the Figure of description, the appearance of these speech should not influence protection domain of the present utility model.
The structure of above-mentioned safety device 3 can also further be set.
In the concrete embodiment of another kind, as depicted in figs. 1 and 2, above-mentioned safety device 3 can also comprise support 34, and support 34 is fixedly connected on hopper 1 outer wall; Static contact 311 is installed on the both sides of support 34, and push rod 322 laterally is plugged in the through hole of static contact 311, and push rod 322 is equipped with movable contact spring 312 in a side that is positioned at support 34 inside, and opposite side is equipped with response agency 33.On hopper 1 outer wall support 34 is set, makes static contact 311, push rod 322 and response agency 33 all can be installed on the support 34, support 34 has played the effect of supporting each component.
A side that is positioned at support 34 inside at push rod 322 is installed movable contact spring 312, can make that movable contact spring 312 well contacted with static contact 311 when fence 2 put down, its opposite side is installed response agency 33, for example, spring 331 and spring base 332 are when fence 2 puts down, because the elastic reaction of response agency 33, can make push rod 322 drive movable contact spring 312 return well, well contact with static contact 311 again.Certainly, above-mentioned response agency 33 can also adopt other structures.
Need to prove, above-mentioned cam 321, push rod 322 and spring base 332 must be set to the cam 321 of insulation materials, the push rod 322 of insulation materials and the spring base 332 of insulation materials, for example can adopt the cam 321 of nylon, the push rod 322 of nylon and the spring base 332 of nylon.Can avoid like this contacting, thereby cause short circuit, the generation of phenomenon such as open circuit with axis of rotation 21, the static contact 311 of metal.Adopt cam 321, push rod 322 and the spring base 332 of nylon material, have advantages such as abrasion resistance is good, light weight, can also adopt cam 321, push rod 322 and the spring base 332 of other materials certainly.
Above-mentioned contact-making switch 31 can be the bonding switch of low level conducting; Static contact 311 and movable contact spring 312 are the metal contact, and the bonding cable is connected in movable contact spring 312.Adopt the bonding circuit of low level control, make that the closure of contact-making switch 31 is safe and reliable with disconnection, after device breaks down, only need the interim bonding of bonding cable connection of signal is got final product, be convenient to operating personnel and carry out maintenance process.Certainly, the bonding cable also can be connected on the static contact 311.
The structure of above-mentioned safety device 3 can also further be set.
In the concrete embodiment of another kind, as depicted in figs. 1 and 2, above-mentioned safety device 3 can also comprise base 35, base 35 is arranged between hopper 1 outer wall and the cam 321, the top of base 35 can have transverse slat, and this transverse slat is removably connected to hopper 1 outer wall by bolt, and the bottom of base 35 can have semi-circular plate, this semi-circular plate center is provided with through hole, and semi-circular plate is set on the axis of rotation 21 by this through hole.Between hopper 1 outer wall and cam 321, base 35 is set, the effect that can play support to the axis of rotation 21 and the cam 321 of fence 2, and can reduce in the course of work vibrations of the cam 321 that the vibrations owing to hopper 1 cause.Certainly, base 35 also can be other shapes.
Please refer to Fig. 4, Fig. 4 is the structural representation of the protective cover 36 of the safety device 3 among Fig. 1.
Above-mentioned safety device 3 can also comprise protective cover 36, and protective cover 36 is removably connected to the outer wall of hopper 1, and covers transmission mechanism 32, contact-making switch 31 and response agency 33.At transmission mechanism 32, contact-making switch 31 and response agency 33 outer setting protective covers 36, in the time of can preventing in hopper 1 the inclination concrete, concrete is scattered and damages safety device 3, plays the effect of Global Macros.
The utility model also provides a kind of engineering machinery, comprises pumping mechanism; Engineering machinery also comprises above-mentioned pumping magazine attachment, and the pumping magazine attachment is connected in the pumping mechanism.
Because said pump feeding funnel device has above-mentioned technique effect, therefore, comprises that the engineering machinery of this pumping magazine attachment also has identical technique effect, does not repeat them here.
More than a kind of engineering machinery provided by the utility model and pumping magazine attachment thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a pumping magazine attachment comprises hopper (1) and is installed on the inner fence (2) of described hopper (1), and the axis of rotation (21) of described fence (2) extends described hopper (1) outer wall; It is characterized in that described hopper (1) outer wall is provided with safety device (3), described safety device (3) comprises contact-making switch (31), and described contact-making switch (31) is serially connected with in the interlock circuit of the pumping mechanism of pump truck and rabbling mechanism; Described contact-making switch (31) comprises the movable contact spring (312) that static contact (311) and rotation with described axis of rotation (21) separate or contact with described static contact (311), described static contact (311) is fixedly connected on described hopper (1) outer wall, and described movable contact spring (312) is connected in described axis of rotation (21).
2. pumping magazine attachment according to claim 1, it is characterized in that, described safety device (3) also comprises transmission mechanism (32), one end of described transmission mechanism (32) is fixedly connected on described axis of rotation (21), and the other end of described transmission mechanism (32) is fixedly connected on described movable contact spring (312).
3. pumping magazine attachment according to claim 2, it is characterized in that, described transmission mechanism (32) comprises cam (321) and push rod (322), described cam (321) is set in described axis of rotation (21) and upward and with described axis of rotation (21) fixedlys connected, one end of described push rod (322) props up the edge of described cam (321), and the other end of described push rod (322) is fixedly connected on described movable contact spring (312).
4. pumping magazine attachment according to claim 3 is characterized in that, described safety device (3) also comprises support (34), and described support (34) is fixedly connected on described hopper (1) outer wall; Described static contact (311) is installed on the both sides of described support (34), and described push rod (322) laterally is plugged in the through hole of two described static contacts (311).
5. pumping magazine attachment according to claim 4 is characterized in that, described safety device (3) also comprises response agency (33); Described push rod (322) is fixedly connected with described movable contact spring (312) in a side that is positioned at described support (34) inside, and described push rod (322) is equipped with described response agency (33) at the opposite side that is positioned at described support (34) inside.
6. pumping magazine attachment according to claim 5 is characterized in that, described response agency (33) comprises spring (331) and spring base (332), and described spring base (332) is insulated spring seat (332).
7. pumping magazine attachment according to claim 3 is characterized in that, described cam (321) is insulation cam (321), and described push rod (322) is insulation push rod (322).
8. according to each described pumping magazine attachment of claim 1-7, it is characterized in that described contact-making switch (31) is the bonding switch; Described static contact (311) and described movable contact spring (312) are the metal contact, and the bonding cable is connected in described movable contact spring (312).
9. according to each described pumping magazine attachment of claim 5-7, it is characterized in that, described safety device (3) also comprises protective cover (36), described protective cover (36) is removably connected to described hopper (1) outer wall, and covers described transmission mechanism (32), described contact-making switch (31) and described response agency (33).
10. an engineering machinery comprises pumping mechanism; It is characterized in that described engineering machinery also comprises each described pumping magazine attachment as claim 1-9, described pumping magazine attachment is connected in the described pumping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206729258U CN201953072U (en) | 2010-12-21 | 2010-12-21 | Engineering machine and pumping hopper apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206729258U CN201953072U (en) | 2010-12-21 | 2010-12-21 | Engineering machine and pumping hopper apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953072U true CN201953072U (en) | 2011-08-31 |
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ID=44497191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206729258U Expired - Lifetime CN201953072U (en) | 2010-12-21 | 2010-12-21 | Engineering machine and pumping hopper apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953072U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116086A (en) * | 2010-12-21 | 2011-07-06 | 徐工集团工程机械股份有限公司建设机械分公司 | Pumping hopper device and control method thereof |
| WO2015154550A1 (en) * | 2014-04-10 | 2015-10-15 | 北汽福田汽车股份有限公司 | Device for warning of opening hopper fence and concrete mixing plant having same |
| CN105735652A (en) * | 2016-03-30 | 2016-07-06 | 青岛天源伟业保温防水工程有限公司 | Cam type electro-hydraulic grouting machine |
-
2010
- 2010-12-21 CN CN2010206729258U patent/CN201953072U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116086A (en) * | 2010-12-21 | 2011-07-06 | 徐工集团工程机械股份有限公司建设机械分公司 | Pumping hopper device and control method thereof |
| CN102116086B (en) * | 2010-12-21 | 2012-09-05 | 徐工集团工程机械股份有限公司建设机械分公司 | Pumping hopper device |
| WO2015154550A1 (en) * | 2014-04-10 | 2015-10-15 | 北汽福田汽车股份有限公司 | Device for warning of opening hopper fence and concrete mixing plant having same |
| CN105735652A (en) * | 2016-03-30 | 2016-07-06 | 青岛天源伟业保温防水工程有限公司 | Cam type electro-hydraulic grouting machine |
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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: 20110831 Effective date of abandoning: 20120905 |