CN101297992A - Water mist fume extractor - Google Patents
Water mist fume extractor Download PDFInfo
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- CN101297992A CN101297992A CNA2008100194285A CN200810019428A CN101297992A CN 101297992 A CN101297992 A CN 101297992A CN A2008100194285 A CNA2008100194285 A CN A2008100194285A CN 200810019428 A CN200810019428 A CN 200810019428A CN 101297992 A CN101297992 A CN 101297992A
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Abstract
The invention discloses a water fog smoke venting device, pertaining to the technical field of fire fighting devices. The water fog smoke venting device comprises a pedestal that is used for being fixed on the car bottom plate of a pumper, an engine, a fan that is coupled with the engine in a transmission way, a flow concentrating cover that is covered on the exterior of the fan and at least one spray pipe that is positioned on and around the internal wall of the flow concentrating cover, the upper part of the pedestal is provided with an elevating mechanism, the engine is arranged on the top of the elevating mechanism. The water fog smoke venting device has the advantages that: on the spot of disaster relief, the height of the engine can be adjusted according to requirements by the elevating mechanism and the engine assists the fan to reach the required height, which realizes the autologous and positive regulation of the device, thus the precious time for relieving disaster can be won; a rotating mechanism can ensure the device realizes all-wave arbitrary selection, namely, arbitrary selection at a 360-degree range without relying on being regulated by the pumper.
Description
Technical field
The present invention relates to a kind of water mist fume extractor, carry on fire fighting truck, the water smoke smoke evacuation when being used for the enforcement disaster relief of the place such as tunnel, subway, lane, ore deposit, market place builet below the ground, underground storehouse, underground garage belongs to the fire fighting device technical field.
Background technology
The reason known as industry, owing to combining with the carbon particle in the flue gas, water mist particle precipitates, thereby the degree full of smoke of scene of fire is controlled, and can actively reduce effectively, the biotic environment of scene of fire is improved, sues and labours and/or be beneficial to stranded crowd's emergency evacuation, withdraw from order to the fire fighter; Again because the required water yield of water smoke smoke evacuation fire extinguishing is tens of/one (25-35/one) of the direct water for fire extinguishing amount of conventional hydrant, thereby can reduce water consumption; Also, thereby can control secondary harm because water smoke smoke evacuation fire extinguishing can be fast and effectively the pernicious gas of scene of fire is diluted, or the like.
In view of water smoke smoke evacuation fire extinguishing has the aforesaid mechanism of action or claims Physical Mechanism, therefore more and more paid attention to by people.In recent years, water mist fume extractor was equipped with successively on the fire fighting truck of the fire units of China.Document record about water mist fume extractor is very few, and the applicant has only detected one piece of Chinese invention patent application publication number CN1935296A, and name is called fire fighting truck fine mist fire-fighting fume extractor.The beneficial effect of this scheme is in the conclusion of its Instructions Page 3 aspect having done four, and the applicant thinks that it is comparatively objective concluding.But, above-mentioned patent application technical scheme still has shortcoming, on in use whole device does can realize, the adjusting of following height, can not make comprehensive (360 °) rotates, thereby the position to disaster relief scene has fastidious property, usually need adjust according to the parking place of vehicle, and this adjustment often needs the time to ensure, the time is delayed in the timely input disaster relief, restricted by the objective environment at disaster relief scene, under many situations, can't satisfy required height of fume extractor and/or orientation requirement by the vehicle adjustment, the smoke evacuation fog effect is affected, industry claims this adjustment mode that is adjusted into passive type or passive type, therefore is necessary to be improved.
Summary of the invention
Top priority of the present invention be to provide a kind of can be to highly realizing self-adjusting water mist fume extractor.
Another task of the present invention also is to provide a kind of water mist fume extractor that can realize comprehensive adjustment to angle.
Finish the top priority of this reality invention for embodiment, technical scheme provided by the present invention is: a kind of water mist fume extractor, it comprises that fan, cover that base that a car bottom plate that is used to be configured to fire fighting truck gets on, an engine, one connect with the engine transmission put the afflux cover fan outside and encircle the sparge pipe that is located on the afflux cover inwall at least, the top of described base has connected an elevating mechanism, and described engine is located at the top of elevating mechanism.
Finish an also task of the present invention for embodiment, technical scheme provided by the present invention is: be provided with a rotating mechanism on described car bottom plate, described base and rotating mechanism connect.
In a specific embodiment of the present invention, described elevating mechanism comprises feet, lift cylinders, first, second crane, first, second adjusts cylinder, the engine underframe, feet has two couple who is the setting of X-shaped attitude separately, and keep corresponding, the lower end cunning of a pair of feet wherein fits on the side inwall of base, the upper end hub setting is on a side inwall of first crane, and another lower end cunning to feet fits on the opposite side inwall of base, the upper end hub setting is on the opposite side inwall of first crane, lift cylinders is vertically fixed on the central authorities of base, the central authorities of its cylinder post and first crane connect, first, second crane is hinged each other, first adjusts cylinder has a pair of, parallel to each other, cylinder body separately is bound up on first crane, and cylinder post separately is bound up on second crane, second adjusts cylinder has a pair of, parallel to each other, cylinder body separately is bound up on second crane, and cylinder post separately is bound up on the engine underframe, first, second adjusts cylinder is reverse setting each other, and the engine underframe and second crane are hinged.
In another specific embodiment of the present invention, described rotating mechanism comprises a pedestal and a rotating disc, and pedestal and car bottom plate are fixed, and rotating disc cooperates by bearing and pedestal are rotatable.
Go back in the specific embodiment of the present invention, the material of the fan blade of described fan is nonmetallic materials.
In another specific embodiment of the present invention, described nonmetallic materials are carbon fiber.
In another specific embodiment of the present invention, the air outlet position of described afflux cover is provided with protection network.
More of the present invention and in specific embodiment, described engine is diesel engine or gasoline engine.
In of the present invention and then specific embodiment, described lift cylinders, to adjust cylinder be oil cylinder or cylinder for first, second, by hydraulic drive source that is disposed on pipeline and the fire fighting truck or the connection of air pressure drive source.
Of the present invention again more and in specific embodiment, extended at least one fixedly ear on the described base, fixedly be equipped with alignment pin on the ear.
The technical scheme that the present invention recommended advantage compared with the prior art is: at the scene of implementing the disaster relief, can the height of engine be complied with by elevating mechanism needs to adjust, and taking fan by engine satisfies to desired height, thereby the positive type that can embody device self is regulated, and can win the valuable disaster relief time; Rotating mechanism can guarantee that device embodies omnibearing i.e. any selection of 360 ° of scopes, need not to rely on fire fighting truck and regulates.
Description of drawings
Fig. 1 is one embodiment of the invention structure chart.
Fig. 2 is the cutaway view of rotating mechanism of the present invention.
Fig. 3 is in the schematic diagram of contraction state for elevating mechanism of the present invention.
The specific embodiment
See also Fig. 1, in the figure, the applicant has provided the fire fighting truck envelope 1 that is not subjected to concrete style restriction, and water mist fume extractor of the present invention is located on the car bottom plate 31 of fire fighting truck envelope 1.On base 36, be equipped with an elevating mechanism, preferably but the concrete structure of the elevating mechanism that definitely is not limited to be: comprise feet 37, lift cylinders 25, first, second crane 38,41, first, second adjusts cylinder 40,23, engine underframe 2, feet 37 has two pairs, be the setting of X-shaped attitude separately, and keep corresponding, because given base 36 is the casing structure of rectangle, therefore each the lower end cunning with two pairs of feets 37 fits on the corresponding two pairs of inboard sliding trays 26 that default in base 36, and each upper end of two pairs of feets 37 is hinged in two inboards that correspond to each other of (also can claim to be pivoted) first crane 38 with bearing pin.Lift cylinders 25 both can adopt oil cylinder, also can adopt cylinder, if employing oil cylinder, connect by fluid pressure line and the hydraulic drive source that is provided on the fire fighting truck so, if and adopt cylinder, connect by pneumatic circuit and the air pressure drive source that is provided on the fire fighting truck so, in the present embodiment, it is lift cylinders 25 that the applicant selects oil cylinder, its cylinder body is fixed on the centre of base 36, fixed form is a vertical fixing, and its cylinder post and first crane 38 connect, by hydraulic oil pipeline 42 be located on the fire fighting truck and connect by hydraulic control device 43 oil circuits as hydraulic drive source of figure signal.When the cylinder post of lift cylinders 25 stretches outside cylinder body, when promptly stretching upwards, just promote to move on first crane 38, meanwhile, and lower end edge sliding tray 26 displacement in opposite directions of feet 37, with 38 liftings of first crane, vice versa.First crane 38 is carried out hinge connection by hinge 24 at their end (diagram right-hand member) with second crane 41 and is connected, be connected to the connection of employing bearing pin if change hinge 24, then should be considered as equivalence, the other end of second crane 41 (diagram left end) adopts hinge or bearing pin to be connected with engine underframe 2 implementation hinge connection equally.Hence one can see that, and it is hinged that hinged between engine underframe 2, first, second crane 38,41 shows as foldable zigzag.First, second adjust cylinder 40,23 also can be called down adjust cylinder, on adjust cylinder, a pair of of same structure respectively arranged, and, for selecting for use of first, second adjustment cylinder 40,23 as the description of selecting mode for use to lift cylinders 25.Be oil cylinder because this example has been selected lift cylinders 25, therefore, first, second is adjusted cylinder 40,23 and also selects oil cylinder thereupon, is connect by corresponding hydraulic oil pipeline (not shown) and hydraulic control device 43 hydraulic circuits equally.By figure clear showing, a pair of first cylinder body of adjusting cylinder 40 is bound up on the left end (shown position state) of first crane 38 in parallel with each other, and cylinder post separately is towards right and be attached to the left end of second crane 41; A pair of second cylinder body of adjusting cylinder 23 is bound up on the right-hand member (shown position state) of second crane 41 in parallel with each other, and cylinder post separately is towards a left side and be attached to the nearly middle part of engine underframe 2.At aforementioned schemes,, remain feasible so, but should regard it as the protection category that belongs to the present invention program if painstakingly increase corresponding crane again and adjust cylinder.In order to prevent vibrations, the present invention also is provided with beam 27 and all establishes snubber block 39 at the upper surface of first, second crane 38,41 at the upper surface of base 36, beam 27, and the material of snubber block 39 is preferably rubber.In addition, respectively extend a fixing ear 35 at the position, diagonal angle of base 36, fixedly on the ear 35 alignment pin 34 be set, by alignment pin 34 with base 36 and car bottom plate 31 lockings, specifically: alignment pin 34 pins are gone into to be preset in the pin-and-hole 33 on the car bottom plate 31 implement locking.
Please continue to see Fig. 1, though the engine 3 that adopts screw 22 to be fixed on the engine underframe 2 both can use gasoline engine, also can use diesel engine, but in the present embodiment, the applicant selects diesel engine, its power is bigger usually, about 82 kilowatts, this example is selected 82 kilowatts diesel engine, and self disposes muffler 20, blast pipe 18, muffler 20 is also protected by muffler cover 19 covers, and blast pipe 18 is taken muffler 20 and is fixed on the engine underframe 2.Fan 10 is that transmission connects with engine 3, and specifically: the end on the lower side of the fan board 6 that extends on engine underframe 2 is by bearing block 5 main driving wheel 21 that is pivoted, and the wheel shaft 4 of main driving wheel 21 power output wheel 16 with engine 3 is connect.And then by the fixed axis 7 driven drive 8 that is pivoted, fan 10 connects with driven drive 8, is nested with on main driving wheel 21 and the driven drive 8 connection between the realization two-wheeled respectively with driving-belt 15 at the end on the upper side of fan board 6.In order to make driving-belt 15 have good transmission effect, then between main driving wheel 21 and driven drive 8, add expansion tightening wheel 17, these expansion tightening wheel 17 hub settings are on fan board 6.The fan blade of fan 10 adopts nonmetallic materials, is preferably the blade that carbon fiber is made, and has quality little (in light weight), characteristics that intensity is good.On fan board 6, received an afflux cover stent 9, afflux cover 12 has been fixed on the afflux cover stent 9 with screw 11.Be laid with that quantity is not limited at the air outlet place of the inwall of afflux cover 12 but be at least sparge pipe 14 together, be furnished with hole for water spraying 44 between on the sparge pipe 14, be equipped with protection network 13 around whole air outlet place in the outside of sparge pipe 14.In the present embodiment, if the sparge pipe 14 that ring-type is provided with increases to two circles (twice) or more by one (circle), and each hole for water spraying 44 is provided with micro nozzle, the variation that must look this form so belongs to technical scheme category disclosed in this invention.
Please consult Fig. 2, the applicant has provided preferably but a kind of specific embodiment structure of the rotating mechanism 28 that is not limited only to, it comprises a pedestal 30 and a rotating disc 29, pedestal 30 is fixing by screw and car bottom plate 31, and rotating disc 29 is realized matching with pedestal 30 as plane bearing by bearing 45, can make rotating disc 29 on pedestal 30, do rotation at any angle.Owing to be provided with this rotating mechanism 28, therefore base 36 and rotating disc 29 should be screwed connection.When pulling out alignment pin 34, and by fire fighter people when ordering about base 36 rotations, whole elevating mechanism and engine 3 and fan 10 are also done corresponding rotation, the amplitude of rotation can be selected arbitrarily 360 ° of scopes, to required degree alignment pin 34 is inserted.The applicant need to prove, as rotating mechanism 28, various variations can also be arranged, and for example can be the round table table body of daily being seen catering industry and the fit form of Revolving disk on top of table, can also be that the loop wheel machine base of harbour, harbour revolves the version of joining mutually with pedestal.In addition, the control cable 32 that is shown among Fig. 1 is used for connecting with engine 3, and control cable 32 is connected with the vehicle power of fire fighting truck.
Please consult Fig. 3, this figure has illustrated first, second crane 38,41 of elevating mechanism of the present invention to be in coincidence or has claimed contraction state that is to say that elevating mechanism is in folded state, the position of engine 3 is in low level.
The applicant narrates use of the present invention, in case obtain fire alarm, the fire fighter just gallops at all speed with fire fighting truck and arrives at the fire-fighting scene, if when the time at a certain market place builet below the ground or the underground parking enforcement disaster relief, because scene of fire dense smoke fills the air, in order to launch the water smoke smoke evacuation, just speed promptly pilots engine 3 at the scene, meanwhile, will be by sparge pipe 14 by the storage tank of fire fighting truck or spraying of fire hydrant or river course introducing water from spray orifice 44.Under the work of engine 3, power output shaft 16 by engine 3 drives main driving wheel 21, drive driven drive 8 through driving-belt 15, the blade of fan 10 is rotated at a high speed, make from the water of spray orifice 44 ejection by blade to be mixed into the smog, combine also sedimentation (shallow lake) with carbon particle in the flue gas with vaporific form ground.If desired the height of fan 10 is adjusted, so as long as drive the hydraulic control device 43 that is carried on the vehicle, the cylinder post of lift cylinders 25 is risen, promoting first crane 38 rises, meanwhile, first, second adjusts also concurrently-acting or select the one action of cylinder 40,23, makes engine 3 take fan 10 and obtains the on-the-spot required reasonable altitudes of the disaster relief.When and for example fruit needs to adjust the orientation of fan 10, as long as pull away alignment pin 34 so, rotate to fixed position by ordering about (catching up with) base 36, just until making fan 10 be registered to target smog by fireman people.After the disaster relief finished, lift cylinders 25, first, second adjustment cylinder 40,23 were replied, and engine 3 quits work, alignment pin 34 lockings.As seen, the present invention can not only adjust the height of fan 10, and also can do any adjustment to angle at the disaster relief scene of enforcement water smoke smoke evacuation, can demonstrate fully fire fighting four key elements, promptly timely, quick, accurate, safety.
Claims (10)
1, a kind of water mist fume extractor, it comprises that fan (10), cover that base (36) that a car bottom plate (31) that is used to be configured to fire fighting truck gets on, an engine (3), one connect with engine (3) transmission put the afflux cover (12) fan (10) outside and encircle the sparge pipe (14) that is located on afflux cover (12) inwall at least, the top that it is characterized in that described base (36) has connected an elevating mechanism, and described engine (3) is located at the top of elevating mechanism.
2, water mist fume extractor according to claim 1 is characterized in that being provided with a rotating mechanism (28) on described car bottom plate (31), described base (36) connects with rotating mechanism (28).
3, water mist fume extractor according to claim 1, it is characterized in that described elevating mechanism comprises feet (37), lift cylinders (25), first, second crane (38,41), first, second adjusts cylinder (40,23), engine underframe (2), feet (37) has two couple who is the setting of X-shaped attitude separately, and keep corresponding, the lower end cunning of a pair of feet (37) wherein fits on the side inwall of base (36), the upper end hub setting is on a side inwall of first crane (38), and another lower end cunning to feet (37) fits on the opposite side inwall of base (36), the upper end hub setting is on the opposite side inwall of first crane (38), lift cylinders (25) is vertically fixed on the central authorities of base (36), the central authorities of its cylinder post and first crane (38) connect, first, second crane (38,41) hinged each other, first adjusts cylinder (40) has a pair of, parallel to each other, cylinder body separately is bound up on first crane (38), and cylinder post separately is bound up on second crane (41), second adjusts cylinder (23) has a pair of, parallel to each other, cylinder body separately is bound up on second crane (41), and cylinder post separately is bound up on the engine underframe (2), first, second adjusts cylinder (40,23) be reverse setting each other, engine underframe (2) is hinged with second crane (41).
4, water mist fume extractor according to claim 2, it is characterized in that described rotating mechanism (28) comprises a pedestal (30) and a rotating disc (29), pedestal (30) is fixing with car bottom plate (31), and rotating disc (29) is by bearing (45) and rotatable cooperation of pedestal (30).
5, water mist fume extractor according to claim 1, the material that it is characterized in that the fan blade of described fan (10) is nonmetallic materials.
6, water mist fume extractor according to claim 5 is characterized in that described nonmetallic materials are carbon fiber.
7, water mist fume extractor according to claim 1 is characterized in that the air outlet position of described afflux cover (12) is provided with protection network (13).
8, water mist fume extractor according to claim 1 is characterized in that described engine is diesel engine or gasoline engine.
9, water mist fume extractor according to claim 1 is characterized in that described lift cylinders (25), first, second adjustment cylinder (40,23) are oil cylinder or cylinder, are connect by hydraulic drive source that is disposed on pipeline and the fire fighting truck or air pressure drive source.
10, water mist fume extractor according to claim 3 is characterized in that having extended on the described base (36) at least one fixedly ear (35), fixedly is equipped with alignment pin (34) on the ear (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100194285A CN101297992B (en) | 2008-01-07 | 2008-01-07 | Water mist fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100194285A CN101297992B (en) | 2008-01-07 | 2008-01-07 | Water mist fume extractor |
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| CN101297992A true CN101297992A (en) | 2008-11-05 |
| CN101297992B CN101297992B (en) | 2011-04-27 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943174A (en) * | 2010-09-09 | 2011-01-12 | 陕西银河消防科技装备有限公司 | Multi-core-driven multi-stage booster combined fire-extinguishing and smoke-controlling device |
| CN104088243A (en) * | 2014-06-19 | 2014-10-08 | 武汉市汉福专用车有限公司 | Spraying dust settling truck |
| CN106110543A (en) * | 2016-08-17 | 2016-11-16 | 李永生 | Violent storm extinguishing vehicle |
| CN108406026A (en) * | 2018-06-12 | 2018-08-17 | 浙江芊荷科技有限公司 | A kind of standing platform for numerically controlled discharge machine |
| CN109966665A (en) * | 2019-04-18 | 2019-07-05 | 杭州萌友服饰有限公司 | Fire disaster smoke prevention device |
| CN110248703A (en) * | 2017-02-02 | 2019-09-17 | 精确行动私人有限公司 | Fluid flow control device |
| WO2019238624A1 (en) * | 2018-06-11 | 2019-12-19 | Mueller Felix | Method for ventilating a building and/or extracting smoke from a building, and fan attachment for optimising the mixture ventilation |
| CN111640274A (en) * | 2020-04-24 | 2020-09-08 | 山东大学 | Intelligent monitoring, early warning and emergency processing system and method suitable for tunnel fire |
| CN112443346A (en) * | 2020-11-25 | 2021-03-05 | 成都城投建筑工程有限公司 | Frame structure of main line under road |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212913C2 (en) * | 1992-04-17 | 1998-04-09 | Sivg System Instandsetzungs Un | Firefighting facility |
| CN2156892Y (en) * | 1993-03-22 | 1994-02-23 | 本溪市消防车改装厂 | Smoke discharging fire engine |
| DE29718954U1 (en) * | 1997-10-24 | 1998-01-08 | Bader Juergen | Overpressure ventilation device |
| CN100581622C (en) * | 2006-10-20 | 2010-01-20 | 倪世和 | Fire control on-board fine-spray fire extinguishing smoke-discharging apparatus |
| CN201164678Y (en) * | 2008-01-07 | 2008-12-17 | 张建明 | Water mist fume extractor |
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2008
- 2008-01-07 CN CN2008100194285A patent/CN101297992B/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943174B (en) * | 2010-09-09 | 2012-03-21 | 陕西银河消防科技装备有限公司 | Multi-core-driven multi-stage booster combined fire-extinguishing and smoke-controlling device |
| CN101943174A (en) * | 2010-09-09 | 2011-01-12 | 陕西银河消防科技装备有限公司 | Multi-core-driven multi-stage booster combined fire-extinguishing and smoke-controlling device |
| CN104088243A (en) * | 2014-06-19 | 2014-10-08 | 武汉市汉福专用车有限公司 | Spraying dust settling truck |
| CN104088243B (en) * | 2014-06-19 | 2015-12-30 | 武汉市汉福专用车有限公司 | Spraying dust pressing car |
| CN106110543A (en) * | 2016-08-17 | 2016-11-16 | 李永生 | Violent storm extinguishing vehicle |
| CN110248703A (en) * | 2017-02-02 | 2019-09-17 | 精确行动私人有限公司 | Fluid flow control device |
| CN110248703B (en) * | 2017-02-02 | 2021-03-26 | 精确行动私人有限公司 | Fluid flow control device |
| WO2019238624A1 (en) * | 2018-06-11 | 2019-12-19 | Mueller Felix | Method for ventilating a building and/or extracting smoke from a building, and fan attachment for optimising the mixture ventilation |
| CN108406026B (en) * | 2018-06-12 | 2019-05-14 | 宁波工程学院 | A kind of standing platform for numerically controlled discharge machine |
| CN108406026A (en) * | 2018-06-12 | 2018-08-17 | 浙江芊荷科技有限公司 | A kind of standing platform for numerically controlled discharge machine |
| CN109966665A (en) * | 2019-04-18 | 2019-07-05 | 杭州萌友服饰有限公司 | Fire disaster smoke prevention device |
| CN111640274A (en) * | 2020-04-24 | 2020-09-08 | 山东大学 | Intelligent monitoring, early warning and emergency processing system and method suitable for tunnel fire |
| CN112443346A (en) * | 2020-11-25 | 2021-03-05 | 成都城投建筑工程有限公司 | Frame structure of main line under road |
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Application publication date: 20081105 Assignee: Suzhou Jieda Fire-Protection Vehicle & Equipment Co., Ltd. Assignor: Zhang Jianming Contract record no.: 2013320010021 Denomination of invention: Water mist fume extractor Granted publication date: 20110427 License type: Exclusive License Record date: 20130307 |
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Owner name: SUZHOU JIEDA FIRE-PROTECTION VEHICLE + EQUIPMENT C Free format text: FORMER OWNER: ZHANG JIANMING Effective date: 20150827 |
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Effective date of registration: 20150827 Address after: Suzhou Industrial Park Suzhou city Jiangsu province 215012 Tang Zhuang Road No. 180 Patentee after: Suzhou Jieda Fire-Protection Vehicle & Equipment Co., Ltd. Address before: 215562, Jiangsu, Changshou City Town, Shuang Bang village industrial park, Suzhou Jetta Fire Vehicle Equipment Co., Ltd. transferred Patentee before: Zhang Jianming |
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| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou Industrial Park Suzhou city Jiangsu province 215012 Tang Zhuang Road No. 180 Patentee after: Jetta Fire Technology (Suzhou) Limited by Share Ltd Address before: Suzhou Industrial Park Suzhou city Jiangsu province 215012 Tang Zhuang Road No. 180 Patentee before: Suzhou Jieda Fire-Protection Vehicle & Equipment Co., Ltd. |
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