CN202383997U - Plate type silencer - Google Patents
Plate type silencer Download PDFInfo
- Publication number
- CN202383997U CN202383997U CN2011205171713U CN201120517171U CN202383997U CN 202383997 U CN202383997 U CN 202383997U CN 2011205171713 U CN2011205171713 U CN 2011205171713U CN 201120517171 U CN201120517171 U CN 201120517171U CN 202383997 U CN202383997 U CN 202383997U
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- board
- silencing block
- exhaust box
- column
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Abstract
The utility model provides a plate type silencer which comprises a plate type silencing block and vertical columns installed on two sides of the plate type silencing block. Sliding rail type connecting structures for fixing the vertical columns and the plate type silencing block are arranged between the vertical columns and the plate type silencing block; the plate type silencing block is provided with two acoustic panels which are parallel with each other; and a sound absorbing packing layer is arranged between the two acoustic panels. The plate type silencer adopts a split connection mode and the fit of the sliding rail type connecting structures between the vertical columns and the plate type silencing block, ensures that the only thing to do is to fix the vertical columns in a ventilation duct in a position where the silencer is laid firstly and then insert the plate type silencing block into frameworks of the vertical columns during installation, and avoids the troubles of integral assembly and integral disassembly in the prior art.
Description
Technical field
The utility model relates to a kind of exhaust box, particularly a kind of board-like exhaust box.
Background technology
Exhaust box (Muffler) is to stop sound transmission and a kind of device of allowing air communication to cross, is the important measures of eliminating air power noise.Exhaust box is mounted on the gas channel of aerodynamic force equipment or the device of the reduction noise in the inlet and exhaust system.Exhaust box can stop the propagation of sound wave, allows the air communication mistake, is the effective tool of control noise.
The kind of exhaust box is a lot, but studies carefully its noise elimination mechanism, can be divided into six kinds of main types to them again, promptly resistive exhaust box, resistant noise-reducing device, impedance complex formula exhaust box, microperforated panel exhaust box, aperture exhaust box and active exhaust box.
Resistive exhaust box mainly utilizes sound-absorbing porous material to reduce noise.Be fixed on acoustic absorbant on the inwall of gas channel or and in pipeline, arrange, just constituted resistive exhaust box according to certain way.When sound wave got into resistive exhaust box, a part of acoustic energy rubbed and changes into thermal dissipation to fall in the hole of porosint, and the sound wave through exhaust box is weakened.Resistive exhaust box just looks like the pure resistance circuit on the electricity, and acoustic absorbant is similar to resistance.Therefore, people just call resistive exhaust box to this exhaust box.Resistive exhaust box is eliminated the noise effective, relatively poor to low frequency noise elimination effect to medium-high frequency.Exhaust box is installed on the gas channel of aerodynamic force equipment (like bigger equipment of exhausr port noise such as fan blower, air compressor machine, boiler exhaust mouth, generator, water pumps) or the device of the reduction noise in the inlet and exhaust system.
The microperforated panel exhaust box generally is to make less than the simple metal thin plate of 1mm with thickness, and with the bit bore of aperture less than 1mm, percentage of perforation is 1% one 3% on thin plate.Select the different percentage of perforation chamber different with thickness of slab dark, just can control the spectral performance of exhaust box, for example: be used for the exhaust box in the subway ventilation road, what use is the microperforated panel exhaust box always.Comprise: framework, the framework both sides are the thin plate of metal surface, have a plurality of Metal-Piercings on the thin plate, the thin plate inboard has steel mesh, middle acoustical material for filling.
Existing exhaust box manufactures integral structure through welding with framework, thin plate, steel mesh, acoustical material, so the exhaust box overall volume is big, Heavy Weight, causes installing very inconvenient; Secondly, because the thin plate of the metal surface of this exhaust box gets rusty because of the influence of environment easily; Stop up Metal-Piercing, because the obstruction of Metal-Piercing, so incident sound can not all be absorbed; Make acoustical absorption coefficient reduce, and acoustical absorption coefficient is a most important technical parameter estimating the acoustical behavior of acoustic absorbant or structure, the high expression of acoustical absorption coefficient sound absorbing capabilities is good; Therefore, existing exhaust box can not reach good acoustically effective.In addition, the problem because above-mentioned obstruction is got rusty etc. has also reduced exhaust box serviceable life; At last, the back easy blocking because the image of environment inside rock wool makes moist, obstruction back air flow property reduces and acoustically effective weakens, and use is sent the objectionable impurities of rock wool and the powder that becomes rusty to the underground space easily in the air channel, influences people's health.
Therefore, how a kind of convenient installation is provided, sound-absorbing effect is good, and harmless exhaust box is those skilled in the art's technical issues that need to address.
The utility model content
The technical matters that the utility model will solve provides a kind of board-like exhaust box, can realize simple installation, improves sound-absorbing effect.
The utility model provides a kind of board-like exhaust box, comprising: board-like silencing block, and the column that is installed in said board-like silencing block both sides; Be provided with the slide rail type syndeton that is fixedly connected column and board-like silencing block between said column and the said board-like silencing block; Said board-like silencing block has two abatvoixs that are parallel to each other, and in the middle of said abatvoix, is provided with the sound-absorbing packed layer.
Preferably, the lateral surface around the said abatvoix is provided with bound edge.
Preferably, between the lateral surface sealant is being set around said bound edge and the abatvoix.
Preferably, said board-like exhaust box further comprises cover plate, and said cover plate is installed on said column two ends through the screw that said column top and bottom are provided with, and constitutes the framed structure of board-like silencing block.
Preferably, said board-like silencing block is at least two.
Preferably, said abatvoix is ceramic honey comb material and stainless steel or ceramic honey comb material and aluminium.
Preferably, said sound-absorbing packed layer is the sound-absorbing cavernous body, and said sealant is an air foam cushioning.
The utility model provides a kind of board-like exhaust box, comprising: at least two board-like silencing blocks; Be installed in the pillar between said two board-like silencing blocks; And the column that is installed in said board-like silencing block opposite side respectively, be provided with the slide rail type syndeton that is fixedly connected between said column, pillar and the said board-like silencing block; Said board-like silencing block has two abatvoixs that are parallel to each other, and in the middle of said abatvoix, is provided with the sound-absorbing packed layer.
Preferably, the described board-like silencing block of the utility model can be four or six or a plurality of.
Compared with prior art, the utlity model has following advantage:
The utility model is through the cooperation of the slide rail type syndeton that is provided with on column and the board-like silencing block; Realized the split interconnection system; Make in install operation process; Only need earlier column to be fixed on the position of subway ventilation road placement exhaust box, the slide rail type syndeton of passing through to be provided with is afterwards inserted board-like silencing block in the column and is got final product, and has overcome the inconvenience of installing in the prior art, dismantling.Secondly; The utility model adopts ceramic honey comb material and stainless steel or aluminium to do surface material, and not only to have solved surfacing thin and get rusty easily and the problem of easy blocking; And the utility model exhaust box makes the air flow performance good; Superior in durability has further improved acoustical absorption coefficient and then has made acoustically effective reach better, improves serviceable life; And have characteristics capable of washing.At last, the utility model has adopted the sound-absorbing cavernous body to avoid packing material in the prior art to the injury of human body and have a fire-retardant effect as packing material.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment and technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment and the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 a is a mounting structure synoptic diagram in first embodiment of a kind of board-like exhaust box of the utility model;
Fig. 1 b is a structural representation in first embodiment of a kind of board-like exhaust box of the utility model;
Fig. 2 is the first embodiment central post of a kind of board-like exhaust box of the utility model and the syndeton synoptic diagram of board-like silencing block;
Fig. 3 is the first embodiment central post of a kind of board-like exhaust box of the utility model and the another kind of syndeton synoptic diagram of board-like silencing block
Fig. 4 is the vertical view of board-like silencing block in first embodiment of a kind of board-like exhaust box of the utility model;
Fig. 5 is the stereographic map of board-like silencing block in first embodiment of a kind of board-like exhaust box of the utility model;
Fig. 6 is the synoptic diagram of the auxilliary board-like silencing block of bound edge bag in first embodiment of a kind of board-like exhaust box of the utility model;
Fig. 7 is first embodiment central post of a kind of board-like exhaust box of the utility model and the mounting structure synoptic diagram between the cover plate;
Fig. 8 is the structural representation of second embodiment of a kind of board-like exhaust box of the utility model;
Fig. 9 is the vertical view of a kind of board-like exhaust box the 3rd embodiment of the utility model;
Figure 10 is the structural representation of the 3rd embodiment of a kind of board-like exhaust box of the utility model;
Figure 11 is the structural representation of the 4th embodiment of a kind of board-like exhaust box of the utility model;
Figure 12 is the structural representation of the 5th embodiment of a kind of board-like exhaust box of the utility model.
Embodiment
To engage the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to shown in Fig. 1 a to Fig. 1 b, Fig. 1 a is a mounting structure synoptic diagram in first embodiment of a kind of board-like exhaust box of the utility model; Fig. 1 b is a structural representation in first embodiment of a kind of board-like exhaust box of the utility model.
Please refer to Fig. 2 and shown in Figure 3, Fig. 2 is the first embodiment central post of a kind of board-like exhaust box of the utility model and the syndeton synoptic diagram of board-like silencing block; Fig. 3 is the first embodiment central post of a kind of board-like exhaust box of the utility model and the another kind of syndeton synoptic diagram of board-like silencing block.The slide rail type syndeton that is fixedly connected column and board-like silencing block that the utility model is provided with between said column 2 and said board-like silencing block 1 does; Through the groove 4 that is provided with on the board-like silencing block 1; The lug boss 3 of the mating recesses 4 that is provided with on the column 2, but the utility model is not limited to this kind mode; Please with reference to shown in Figure 3; The utility model can also be provided with lug boss 5 at board-like silencing block 1; Groove 6 realization that cooperatively interacts is set on said column 2; The slide rail parts that are fixedly connected column 2 and board-like silencing block 1 perhaps are set between said column 2 and said board-like silencing block 1, and these parts can be installed on respectively on column 2 and the board-like silencing block 1.
The utility model illustrates as follows with above-mentioned first kind of structure:
Please refer to Fig. 2; Comprise board-like silencing block 1; Be separately installed with column 2 in said board-like silencing block 1 both sides, said column 2 is provided with lug boss 3, and said board-like silencing block 1 is provided with groove 4 board-like silencing blocks 1 and installs through groove 4 cooperations of lug boss on the column 13 and setting on it.
Cooperate Fig. 4 to shown in Figure 5, Fig. 4 is the vertical view of board-like silencing block in first embodiment of a kind of board-like exhaust box of the utility model; Fig. 5 is the stereographic map of board-like silencing block in first embodiment of a kind of board-like exhaust box of the utility model.Said board-like silencing block 1 comprises two abatvoixs that are parallel to each other 7; Between abatvoix 7, be provided with sound-absorbing packed layer 8.
Further with reference to shown in Figure 6, Fig. 6 is the synoptic diagram of board-like silencing block bound edge in first embodiment of a kind of board-like exhaust box of the utility model.Through bound edge 10, abatvoix 7 is wrapped in the board-like silencing block 1 around said abatvoix 7 lateral surfaces.Cooperate with reference to shown in Figure 4; In order to prevent that abatvoix 7 from rocking in said board-like silencing block 1; Can between side around the said abatvoix 7 and said bound edge 10, increase sealant 9; Slit between board-like silencing block 1 and the abatvoix 7 is filled, avoid, cause the damage of exhaust box and the reduction of erasure effect because of rocking.
For the utility model better is described, the utility model provides concrete mode and illustrates.Board-like silencing block 1 matches and is installed together through being arranged on the lug boss 3 that is provided with on groove 4 and the said column 2 on the board-like silencing block.Through being used of slide rail type syndeton is set, can board-like silencing block 1 be easy to be installed together with column 2.Need to prove; The embodiment of the utility model be merely better explanation and understood that the utility model carries out for example; Do not limit the said content of the utility model, for example: board-like silencing block 1 also can be set to lug boss 5, and column is provided with groove 6 also can realize the utility model purpose.
Further with reference to shown in Figure 7, Fig. 7 is first embodiment central post of a kind of board-like exhaust box of the utility model and the mounting structure synoptic diagram between the cover plate.The screw 12 that said cover plate 11 is provided with through said column 2 tops and bottom respectively is installed on cover plate 11 on the column 2, constitutes the framed structure of board-like silencing block, because two cover plates 11 and then protected board-like silencing block 1 not to be damaged about being provided with.When the board-like silencing block of disassembling, assembling and replacing, only need cover plate 11 is taken off, board-like silencing block 1 extraction is got final product.Therefore; The utility model has adopted the split interconnection system to cooperate rail structure; Utilize the lug boss 3 of column 2 and the groove 4 of board-like silencing block 1 to cooperate, make in install operation process, only need column 2 is fixed on the position that board-like exhaust box is placed in the subway ventilation road earlier; Afterwards board-like silencing block 1 is inserted in the said column 2 and get final product, avoided the trouble of integral installation in the prior art, integral demounting.
Further with reference to figure 8, Fig. 8 is the structural representation of second embodiment of a kind of board-like exhaust box of the utility model.
Wherein, the abatvoix shown in the utility model Fig. 27 can be ceramic honey comb and stainless steel as panel material or adopt ceramic honey comb and aluminium; Sound-absorbing packed layer 8 can be the sound-absorbing cavernous body; Said sealant 10 can be air foam cushioning.
The utility model abatvoix 7 adopts ceramic honey comb and stainless steel or aluminium to combine, and realizes sound absorption function.Ceramic honey comb is the netted small structure that interpenetrates by from the three-dimensional of showing the lining, and when sound wave incided abatvoix 7 surfaces, the sound wave of the overwhelming majority can get into ceramic honey comb abatvoix 7 inside along mazy aperture tunnel.Sound wave causes the air vibration in the hole at ceramic honey comb abatvoix 7 internal communications, and similar shape becomes the surface coarse ceramic grain of ten minutes of hole to rub, and a part of acoustic energy is changed into heat energy; After part acoustic energy arrives inner sound absorption cavernous body; Acoustic energy is continued to be consumed; A part of acoustic energy arrives the rigid walls back reflection and returns ceramic honey comb abatvoix 7; Sound wave can come back in mazy aperture tunnel as first incident sound again, drives air and ceramic grain and rubs, and acoustic energy continues to be transformed, consume.And the characteristics of ceramic honey comb are high strength, specific performance such as high temperature resistant, corrosion-resistant, wear-resisting.These effects interact and characteristics combine, and make ceramic honey comb plate and inner sound absorption cavernous body consume incident acoustic energy effectively, have improved acoustical absorption coefficient, thereby have obtained good sound absorption and noise reduction; Therefore and exhaust box is difficult for getting rusty, and aperture is difficult for blocking, and not only in bar erasure effect, has also further improved the serviceable life of exhaust box; In addition, the exhaust box that provides of the utility model has characteristics capable of washing.
The sound-absorbing packed layer 8 of the utility model can be the sound-absorbing cavernous body, and the sound-absorbing sponge is to be processed by melamine foamed plastic, has combination properties such as unique sound-absorbing, heat insulation, fire-retardant, high temperature resistant, light weight.Avoided in the prior art packing material to the injury of human body.
Further please refer to Fig. 9 and Figure 10, Fig. 9 is the vertical view of a kind of board-like exhaust box the 3rd embodiment of the utility model.
The two boards formula silencing block 1 at least that comprises shown in Figure 9 is installed in the pillar 13 between said two board-like silencing blocks 1, is provided with the slide rail type syndeton that is fixedly connected between said pillar 13 and the said board-like silencing block 1; And the column 2 that is installed in said board-like silencing block 1 opposite side respectively, be provided with the slide rail type syndeton that is fixedly connected between said column 2 and the said board-like silencing block 1.The slide rail type link structure of the utility model is to realize with pillar 13 through the lug boss 3 of the groove fit column 2 of board-like silencing block 1; Board-like silencing block 1 is installed in column 2 and the pillar 13; When installing perhaps at the dismounting exhaust box; Only need extract board-like silencing block 1 successively out and get final product, therefore, further improve the installation of exhaust box, the convenience of dismounting.
Please refer to shown in Figure 9ly, Fig. 9 is the structural representation of the 3rd embodiment of a kind of board-like exhaust box of the utility model; Figure 10 is the structural representation of the 3rd embodiment of a kind of board-like exhaust box of the utility model.
Wherein, said pillar 13 can be one or more; The width of said pillar 13 can be made as the width of board-like silencing block 1 groove, has realized slide rail type syndeton completion assembling.That is to say that said pillar 13 can directly be installed with the groove fit of said column 2, need not on pillar 13, to set up other structures.When said board-like silencing block 1 side is convex structure, then need pillar 13 to be provided with the groove structure that cooperates installation with lug boss.Said board-like silencing block 1 is provided with two abatvoixs 7, in the middle of said abatvoix 7, sound-absorbing packed layer 8 is set.
For the utility model better is described, the utility model provides concrete mode and illustrates.On two board-like silencing blocks 1, groove 7 is set; The lug boss 12 that is provided with on the said column 2; Said pillar 15 directly is snapped in the groove of board-like silencing block 1, and board-like silencing block 1 can insert respectively between column 2 and the pillar 15 through the cooperation of slide rail type link structure.Need to prove; The embodiment of the utility model be merely better explanation and understood that the utility model carries out for example; Do not limit the said content of the utility model; For example: board-like silencing block also can be set to lug boss, groove (figure does not show) can be set on column and pillar still can realize the utility model.
When board-like exhaust box is installed; Can earlier column 2 and pillar 15 be fixed in the ventiduct that needs noise reduction; Afterwards; The groove 7 of said board-like silencing block 1 through its setting respectively with column 2 on lug boss 3 cooperates (pillar 13 is snapped in the groove 7 of board-like silencing block 1) to be installed in the framework that column 2 and pillar 13 form with pillar 13, again cover plate 11 and the screw 12 on the said column 2 are fixed afterwards, promptly install.Equally, when dismounting, also can cover plate 11 be opened at present, successively or simultaneously board-like silencing block 1 extracted out respectively, afterwards column 2 and pillar 13 taken off, and then improve the installation and removal of exhaust box.
Please refer to Figure 10, Figure 10 is the structural representation of the 4th embodiment of a kind of board-like exhaust box of the utility model.
Shown in Figure 10; Board-like silencing block 1 among Fig. 9 is set to four; Groove 4 through board-like silencing block 1 cooperates with pillar 13 and is installed in the framework that said column 2 and pillar 15 form respectively, afterwards through 12 securing cover plates 11 of the screw on said column 2 lug bosses 3 with, install.Equally, when dismounting, also can cover plate 11 be opened at present, board-like silencing block 1 is taken out, afterwards framework (column and pillar) taken off, and then improve the installation and removal of exhaust box.Among this embodiment; Board-like silencing block 1 is preferably square and four lateral surfaces can have groove; Therefore; This board-like silencing block 1 not the recipient to restriction, carry out installation and removal through the slide rail type link structure that on column 2, board-like silencing block 1, pillar 13, is provided with, make convenient and flexible installation.
Please refer to shown in Figure 11ly, Figure 11 is the structural representation of the 5th embodiment of the board-like exhaust box of the utility model;
Shown in Figure 11; Board-like silencing block 1 among Fig. 9, Figure 10 is set to six; Successively the cooperation of passing through board-like silencing block 1 groove 4 and pillar 13 is installed in column 2 and the pillar 13 formed frameworks respectively; Through screw 12 securing cover plates 11 on said column 2 lug bosses 12, install immediately afterwards.Equally, when dismounting, also can cover plate 11 be opened at present, board-like silencing block 1 is taken out, afterwards framework taken off, and then improve the installation and removal of exhaust box.Among this embodiment, board-like silencing block 1 is preferably square, and this board-like silencing block 1 not the recipient to restriction, carry out installation and removal through the slide rail type link structure that on column 2, board-like silencing block 1, pillar 13, is provided with.
The quantity of above-mentioned board-like silencing block 1 is not received the restriction in the utility model embodiment, can be one for a plurality of yet.
In addition; The utility model is fixedly connected board-like silencing block and column or board-like silencing block, column and pillar through above-mentioned slide rail type fixed connection structure, can also be fixedly connected through on board-like silencing block and column or board-like silencing block, column and pillar, the slide rail type fixed connecting part that is fixedly connected being set.
Need to prove; In this article; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make to comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.
The preferred implementation that the above is merely a kind of exhaust box that the utility model provides does not constitute the qualification to the utility model protection domain.The mode that number of components among this embodiment is not limited among the embodiment to be adopted; Any modification of being done within any spirit and principle at the utility model, be equal to replacement and improvement etc., all should be included within the claim protection domain of the utility model.
Claims (9)
1. a board-like exhaust box is characterized in that, comprising:
Board-like silencing block, and the column that is installed in said board-like silencing block both sides; Be provided with the slide rail type syndeton that is fixedly connected column and board-like silencing block between said column and the said board-like silencing block; Said board-like silencing block has two abatvoixs that are parallel to each other, and in the middle of said abatvoix, is provided with the sound-absorbing packed layer.
2. board-like exhaust box according to claim 1 is characterized in that, the lateral surface around the said abatvoix is provided with bound edge.
3. board-like exhaust box according to claim 2 is characterized in that, between the lateral surface sealant is being set around said bound edge and the abatvoix.
4. board-like exhaust box according to claim 1 is characterized in that, further comprises cover plate, and said cover plate is installed on said column two ends through the screw that said column top and bottom are provided with respectively, constitutes the framed structure of board-like silencing block.
5. board-like exhaust box according to claim 4 is characterized in that, said board-like silencing block is at least two.
6. board-like exhaust box according to claim 1 is characterized in that, said abatvoix is ceramic honey comb material and stainless steel or ceramic honey comb material and aluminium.
7. board-like exhaust box according to claim 1 is characterized in that, said sound-absorbing packed layer is the sound-absorbing cavernous body, and said sealant is an air foam cushioning.
8. a board-like exhaust box is characterized in that, comprising:
At least two board-like silencing blocks; Be installed in the pillar between said two board-like silencing blocks; And the column that is installed in said board-like silencing block opposite side respectively, be provided with the slide rail type syndeton that is fixedly connected between said column, pillar and the said board-like silencing block; Said board-like silencing block has two abatvoixs that are parallel to each other, and in the middle of said abatvoix, is provided with the sound-absorbing packed layer.
9. board-like exhaust box according to claim 8 is characterized in that, said board-like silencing block is four or six or a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205171713U CN202383997U (en) | 2011-12-13 | 2011-12-13 | Plate type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205171713U CN202383997U (en) | 2011-12-13 | 2011-12-13 | Plate type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383997U true CN202383997U (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205171713U Expired - Fee Related CN202383997U (en) | 2011-12-13 | 2011-12-13 | Plate type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165124A (en) * | 2011-12-13 | 2013-06-19 | 王筱越 | Plate type silencer |
-
2011
- 2011-12-13 CN CN2011205171713U patent/CN202383997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165124A (en) * | 2011-12-13 | 2013-06-19 | 王筱越 | Plate type silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Kaiwu Inventor after: Zhou Yongfu Inventor after: Wang Xiaoyue Inventor before: Zhou Yongfu Inventor before: Wang Xiaoyue |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU YONGFU WANG XIAOYUE TO: YANG KAIWU ZHOU YONGFU WANG XIAOYUE |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20171213 |