CN107804145A - A kind of fire-fighting equipment with self-rotating nozzle - Google Patents
A kind of fire-fighting equipment with self-rotating nozzle Download PDFInfo
- Publication number
- CN107804145A CN107804145A CN201711082295.1A CN201711082295A CN107804145A CN 107804145 A CN107804145 A CN 107804145A CN 201711082295 A CN201711082295 A CN 201711082295A CN 107804145 A CN107804145 A CN 107804145A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- compartment
- rotating
- rotary shaft
- trace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
- B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
- B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
- B60J7/057—Driving or actuating arrangements e.g. manually operated levers or knobs
- B60J7/0573—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical
- B60J7/0576—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical fluid
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/047—Doors arranged at the vehicle sides characterised by the opening or closing movement
- B60J5/0472—Doors arranged at the vehicle sides characterised by the opening or closing movement the door having a hinge axis in horizontal direction transverse to vehicle longitudinal axis
Abstract
The invention discloses a kind of fire-fighting equipment with self-rotating nozzle, including compartment, the car body top is connected with skylight by headstock gear, the headstock gear includes the lower guideway for being fixed on top outside compartment, upper rail and drive cylinder, the lower guideway and upper rail are parallel to each other and set along car length direction, the upper rail is provided with two and is symmetrically set in compartment both sides, the lower guideway is provided with two and is symmetrically set in compartment both sides, a draw runner is respectively equipped with two upper rails, the both ends of the draw runner are respectively equipped with go forward rotary shaft and upper rear rotary shaft, it is described go forward rotary shaft and it is upper after rotary shaft respectively by the first roller roll be connected to the upper rail, the upper rear rotary shaft is also rotatably connected to the first rotating bar.The headstock gear of the skylight of the present invention is reasonable in design, and skylight can be opened completely；The door opener of side door is reasonable in design, is passed in and out after unlatching and has more convenience.
Description
Technical field
The present invention relates to technical field of fire control, particularly relates to a kind of fire-fighting equipment with self-rotating nozzle.
Background technology
The door-opening mode of existing vehicle is single, not big enough there is also open angle, and the problem of space is small is passed in and out after enabling；Disappear
The skylight opening-closing structure design configured on anti-car is unreasonable, and product is not big enough behind folding, in-convenience in use.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of fire-fighting equipment with self-rotating nozzle, to solve existing skill
It is small that space is passed in and out in art after opening door of vehicle, and the skylight opening-closing structure configured on fire fighting truck designs unreasonable, product behind folding
It is not big enough, in-convenience in use technical problem.
In order to solve the above technical problems, embodiments of the invention provide a kind of fire-fighting equipment with self-rotating nozzle, including
Compartment, the car body top are connected with skylight by headstock gear, and the headstock gear is included being fixed on outside compartment under top
Guide rail, upper rail and drive cylinder, the lower guideway and upper rail be parallel to each other and along car length direction set, it is described on lead
Rail is provided with two and is symmetrically set in compartment both sides, and the lower guideway is provided with two and is symmetrically set in compartment both sides, two it is described on
A draw runner is respectively equipped with guide rail, the both ends of the draw runner are respectively equipped with go forward rotary shaft and upper rear rotary shaft, the upper forward
Moving axis and upper rear rotary shaft are rolled by the first roller be connected to the upper rail respectively, and the upper rear rotary shaft is also rotatablely connected
Have the first rotating bar, the lower end of first rotating bar is rotatably connected to the second roller, second roller be arranged at it is described under
Guide rail, the track of the lower guideway include horizontal rail section and are arranged on the vertical rail that the leading section of horizontal rail section extends downwardly
Road section, the rotary shaft of going forward also are rotatably connected to the second rotating bar, and first rotating bar and the second rotating bar be arranged in parallel
And it is isometric, the skylight is rotationally connected with the lower end of the first rotating bar and the second rotating bar respectively by shaft seat, two institutes
State and be connected by support bar between draw runner, the output end of the drive cylinder is connected on the support bar to drive support bar to exist
Moved in horizontal direction along car length direction, the car body top is provided with the open portion that keying is engaged with skylight；
Top is provided with water injector outside the compartment, the water injector including storage tank, bottom pedestal, rotating cylinder and in
Axle, on storage tank, the storage tank is installed on top, the bottom pedestal outside compartment and is provided with water flowing the bottom pedestal
Hole, the rotating cylinder are rotatably connected on the bottom pedestal by axis, and the rotating cylinder is hollow structure, the rotating cylinder
Outer face is that the center of circle is evenly equipped with four outer circle holes with place where axle center, the rotating cylinder close to bottom pedestal inner face with axle center institute
Four interior circular holes are evenly equipped with for the center of circle at place, the outer circle hole and interior circular hole homogeneous one are corresponded to and be coaxially disposed, and each outer circle hole is led to
Cross flexible pipe connection and its 90 ° of interior circular hole of misplacing；The bottom pedestal has four pillars being connected on its madial wall, four
Enclosed between the pillar and form the limbers, the junction of four pillars is provided with centre bore, and the centre bore is used to wear
Enter the axis.
Side door is connected with by door opener on the compartment, the door opener includes the bearing located at interior compartment side,
Rotated on the bearing vertical direction and be provided with first rotating shaft, the upper end of the first rotating shaft is rotatably connected to the in vertical direction
One connecting rod, the lower end of the first rotating shaft are rotatably connected to second connecting rod in vertical direction, and the first connecting rod and second connect
The middle part of bar is connected so that first connecting rod and second connecting rod synchronous axial system by fix bar, the first connecting rod and second connecting rod
Axle sleeve is provided between turning end, the axle sleeve both ends are rotatedly connected by the second rotating shaft with first connecting rod respectively, and pass through
Three rotating shafts are rotatedly connected with second connecting rod, and the turning end of the first connecting rod is also fixedly connected with the first angular wheel, the side
The second angular wheel is fixedly connected with door, second angular wheel is connected on axle sleeve by the 4th axis of rotation, and described the
The axial direction of one angular wheel is vertical direction, and the axial direction of second angular wheel is horizontal direction, first angular wheel
Vertically it is meshed with the second angular wheel, the sleeve lateral wall is provided with the first trace, the bearing in the perpendicular direction
On be fixed with the second trace, first trace and the second trace be isometric, parallel and in same level, described
The outer end of first trace and the second trace is connected by third connecting rod, when side door is in closed mode, the first trace and
Third connecting rod forms an acute angle in junction, and the acute angle is 45 °.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, the headstock gear of skylight of the invention is reasonable in design, and skylight can be opened completely；Side door
Door opener is reasonable in design, is passed in and out after unlatching and has more convenience.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structure decomposition figure of the headstock gear of the skylight of the present invention.
Fig. 3 is the state diagram one of the headstock gear of the skylight of the present invention, and display skylight is opened in way.
Fig. 4 is the state diagram two of the headstock gear of the skylight of the present invention, and display skylight has fully opened.
Fig. 5 is the Structure explosion diagram of the headstock gear of the skylight of the present invention.
Fig. 6 is the stereogram one of the door opener of the present invention, and display side door is closed mode.
Fig. 7 is the structure chart one of the door opener of the present invention.
Fig. 8 is the detonation configuration figure of the door opener of the present invention.
Fig. 9 is the stereogram two of the door opener of the present invention, and display side door is opening.
Figure 10 is the structure chart two of the door opener of the present invention.
Figure 11 is the sectional view of the water injector of the present invention.
Figure 12 is the top view of the rotating cylinder of the water injector of the present invention.
Figure 13 is the stereogram of the bottom pedestal of the water injector of the present invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
For convenience of description, in Fig. 1 left direction be car before, direction of advance, front portion, right direction for after, rear portion.
As shown in Figures 1 to 5, the embodiment of the present invention provides a kind of fire-fighting equipment with self-rotating nozzle, including compartment
100, the top of compartment 100 is connected with skylight 9 by headstock gear, and the headstock gear, which includes being fixed on outside compartment 100, to be pushed up
Lower guideway 31, upper rail 32 and the drive cylinder 33 in portion, the lower guideway 31 and upper rail 32 are parallel to each other and grown along compartment 100
Spend direction and (i.e. fore-and-aft direction) is set, the upper rail 32 is provided with two and is symmetrically set in the both sides of compartment 100, the lower guideway 31
Provided with two and the both sides of compartment 100 are symmetrically set in, upper rail 32 and lower guideway 31 are correspondingly arranged, and are divided in two upper rails 32
Not She You a draw runner 34, the both ends of the draw runner 34 be respectively equipped with go forward rotary shaft 35 and it is upper after rotary shaft 36, the upper forward
Moving axis 35 and upper rear rotary shaft 36 are rolled by the first roller 37 be connected to the upper rail 32 respectively, the upper rear rotary shaft 36
Also it is rotatably connected to the first rotating bar 38, the lower end of first rotating bar 38 is rotatably connected to the second roller 39, and described second
Roller 39 is arranged at the lower guideway 31, and the track of the lower guideway 31 includes horizontal rail section 311 and is arranged on horizontal rail
The vertical rail section 312 that the leading section of section 311 extends downwardly, the junction of the horizontal rail section 311 and vertical rail section 312
Make fillet processing, the rotary shaft 35 of going forward also is rotatably connected to the second rotating bar 40, first rotating bar 38 and second turn
Lever 40 be arranged in parallel and isometric, and the skylight 9 is rotationally connected with the first rotating bar 38 and second turn respectively by shaft seat 41
At the lower end of lever 40, it is connected between two draw runners 24 by support bar 41, the output end connection of the drive cylinder 33
In, to drive support bar 42 to be moved in the horizontal direction along the length direction of compartment 100, the compartment 100 pushes up on the support bar 42
Portion is provided with the open portion 8 that keying is engaged with skylight 9.Draw runner, the first rotating bar, the second rotating bar, skylight form parallel four side
The bar linkage structure of shape.
Closure state is in for the headstock gear of skylight as depicted in figs. 1 and 2, now the second roller is located at vertical rail section
Lower end at；As shown in figure 3, the output end for starting drive cylinder is shunk, support bar is driven to move backward, therefore draw runner is also followed
Moved backward along upper rail, so as to drive the first rotating bar and the second rotating bar synchronous axial system, the second roller is along vertical rail section
Upward sliding, skylight is driven to move straight up；As shown in figure 4, the output end of drive cylinder is further shunk, the second roller warp
Cross after vertical rail section and enter horizontal rail section, the open portion in skylight and compartment completely disengages, and does not interfere with each other, and reaches most
Big opening.
As shown in Fig. 1, Fig. 6 to Figure 10, the compartment 100 is connected with side door 10, the door opener by door opener
Rotated including the bearing 11 located at the inner side of compartment 100, on the vertical direction of bearing 11 and be provided with first rotating shaft 12, described first turn
The upper end of axle 12 is rotatably connected to first connecting rod 13 in vertical direction, and the lower end of the first rotating shaft 12 turns in vertical direction
Dynamic to be connected with second connecting rod 14, the first connecting rod 13 is connected with the middle part of second connecting rod 14 by fix bar 15 so that first connects
Bar 13 and second connecting rod 14 are (i.e. remote around the synchronous axial system of first rotating shaft 12, the turning end of the first connecting rod 13 and second connecting rod 14
From one end of first rotating shaft 12) between be provided with axle sleeve 16, the both ends of axle sleeve 16 pass through the second rotating shaft 17 and first connecting rod respectively
13 are rotatedly connected, and are rotatedly connected by the 3rd rotating shaft 18 with second connecting rod 14, first rotating shaft 12, first connecting rod 13, second
Connecting rod 14, axle sleeve 16 form a rectangular shape, and the turning end of the first connecting rod 13 is also fixedly connected with the first conical tooth
Wheel 19, the pivot center of the first angular wheel 19 is overlapped with the second rotating shaft 17, and the second conical tooth is fixedly connected with the side door 10
Wheel 20, second angular wheel 20 is rotationally connected with axle sleeve 16 by the 4th rotating shaft 21, first angular wheel 19
It is axially vertical direction, the axial direction of second angular wheel 20 is horizontal direction, and first angular wheel 19 and second is bored
Shape gear 20 has the identical number of teeth and is vertically meshed, and the lateral wall of sleeve 16 is provided with first and interlocked in the perpendicular direction
Bar 21, is fixed with the second trace 22 on the bearing 11, and first trace and the second trace be isometric, parallel and be located at
In same level, first trace 21 is connected with the outer end of the second trace 22 by third connecting rod 23, third connecting rod
23 and first connecting rod 13 it is isometric, when side door 10 is in closed mode, the first trace 21 and third connecting rod 23 are formed in junction
One acute angle α, the acute angle α is 45 °.The length of first trace 21 is less than the length of third connecting rod 23, and first connects
Lever 21, third connecting rod 23, the second trace 22 form three sides of a parallelogram.It is illustrated in figure 5 side door closing
State, when needing to open side door, if using electronic mode, rotated with side door motor driving first rotating shaft, first connecting rod
Turning end is turned on the outside of compartment, because the first trace, third connecting rod, the second trace form three of a parallelogram
Side, and the second trace is fixed, first trace forms fixed angle with compartment fore-and-aft plane all the time, due to set
Cylinder and the first trace are fixedly linked, therefore side door can remain parallel with compartment fore-and-aft plane in motion process, by
Fixed in first connecting rod and the first angular wheel, the second angular wheel and side door are fixed, and first connecting rod can make first when rotating
The position of engagement of angular wheel and the second angular wheel is changed, and the B location in Fig. 8 is transformed to by the location A in Fig. 5, because
This can drive side door to rotate, and postrotational side door can increase the position imported and exported after enabling, convenient compartment, and side door up and down
It is near from a distance from compartment after being opened the door after expansion than tradition, there is barrier such as wall etc. is more convenient to open for side.
As shown in Figure 11 to Figure 13, the outer top in the compartment 100 is provided with water injector, and the water injector includes storage tank
75th, bottom pedestal 71, rotating cylinder 72 and axis 73, the bottom pedestal 71 on storage tank 75, install by the storage tank 75
In the outer top in compartment 100, the bottom pedestal 71 is provided with limbers 711, and the rotating cylinder 72 is rotatably coupled by axis 73
In on the bottom pedestal 71, the rotating cylinder 72 is hollow structure, the outer face of the rotating cylinder 72 using at where axle center as the center of circle
Be evenly equipped with four outer circle holes 721, the rotating cylinder 72 close to bottom pedestal 71 inner face to be evenly equipped with as the center of circle at where axle center
Four interior circular holes 722, the outer circle hole 721 and interior circular hole 722, which correspond, to be coaxially disposed, and each outer circle hole 721 is by soft
Pipe 74 connects and its 90 ° of interior circular hole 722 of misplacing.The bottom pedestal 71 has four pillars being connected on its madial wall
712, enclose between four pillars 712 and form the limbers 711, the junction of four pillars 712 is provided with centre bore
713, the centre bore 713 is used to penetrate the axis 73.The upper surface and lower surface of the rotating cylinder 72 are provided with central shaft hole 723
For through the axis 73.Water pump can be set at top outside compartment during implementation, water for needing to spray in storage tank etc. is passed through
Water pump is pressurized, and is then connected with base part seat body phase, and current pass sequentially through limbers on the pedestal of bottom and flexible pipe sprays away, due to
Flexible pipe is distorted shape, and current can be ejected with the flow direction of rotation from flexible pipe, and produce rotating reactive force, and make rotating cylinder relative
Rotation is produced in bottom pedestal, the current of the larger rotating-spray of spray area is formed, improves operating efficiency, and do not need volume
Outer motor drives, and energy-conserving and environment-protective, alleviates weight of equipment.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of fire-fighting equipment with self-rotating nozzle, including compartment, it is characterised in that the car body top passes through headstock gear
Skylight is connected with, the headstock gear includes lower guideway, upper rail and the drive cylinder for being fixed on top outside compartment, led under described
Rail and upper rail are parallel to each other and set along car length direction, and the upper rail is provided with two and is symmetrically set in compartment both sides,
The lower guideway is provided with two and is symmetrically set in compartment both sides, and a draw runner, the draw runner are respectively equipped with two upper rails
Both ends be respectively equipped with go forward rotary shaft and it is upper after rotary shaft, it is described go forward rotary shaft and it is upper after rotary shaft respectively by first rolling
Wheel rolling is connected to the upper rail, and the upper rear rotary shaft is also rotatably connected to the first rotating bar, first rotating bar
Lower end is rotatably connected to the second roller, and second roller is arranged at the lower guideway, and the track of the lower guideway includes level
Orbital segment and the vertical rail section that the leading section of horizontal rail section extends downwardly is arranged on, the rotary shaft of going forward also is rotatablely connected
There is the second rotating bar, first rotating bar and the second rotating bar be arranged in parallel and isometric, and the skylight is distinguished by shaft seat
It is rotationally connected with the lower end of the first rotating bar and the second rotating bar, is connected between two draw runners by support bar, it is described
The output end of drive cylinder is connected to drive support bar to be moved in the horizontal direction along car length direction on the support bar,
The car body top is provided with the open portion that keying is engaged with skylight；
Top is provided with water injector outside the compartment, and the water injector includes storage tank, bottom pedestal, rotating cylinder and axis,
On storage tank, the storage tank is installed on top, the bottom pedestal outside compartment and is provided with limbers, institute the bottom pedestal
State rotating cylinder to be rotatably connected on the bottom pedestal by axis, the rotating cylinder is hollow structure, the outer end of the rotating cylinder
Face is evenly equipped with four outer circle holes with place where axle center for the center of circle, the rotating cylinder close to bottom pedestal inner face with axle center place at
Four interior circular holes are evenly equipped with for the center of circle, the outer circle hole and interior circular hole homogeneous one are corresponded to and be coaxially disposed, and each outer circle hole passes through soft
Pipe connects and its 90 ° of interior circular hole of misplacing；The bottom pedestal has four pillars being connected on its madial wall, described in four
Enclosed between pillar and form the limbers, the junction of four pillars is provided with centre bore, and the centre bore is used to penetrate institute
State axis.
2. compartment according to claim 1, it is characterised in that side door is connected with by door opener on the compartment, institute
The bearing that door opener includes being located at interior compartment side is stated, is rotated on the bearing vertical direction and is provided with first rotating shaft, described first
The upper end of rotating shaft is rotatably connected to first connecting rod in vertical direction, the lower end of the first rotating shaft company of rotation in vertical direction
Second connecting rod is connected to, the first connecting rod is connected so that first connecting rod and second connecting rod with the middle part of second connecting rod by fix bar
Synchronous axial system, axle sleeve is provided between the turning end of the first connecting rod and second connecting rod, the axle sleeve both ends pass through second respectively
Rotating shaft is rotatedly connected with first connecting rod, and is rotatedly connected by the 3rd rotating shaft with second connecting rod, the rotation of the first connecting rod
End is also fixedly connected with the first angular wheel, the second angular wheel is fixedly connected with the side door, second angular wheel leads to
Cross the 4th axis of rotation to be connected on axle sleeve, the axial direction of first angular wheel is vertical direction, second angular wheel
Axial direction be horizontal direction, first angular wheel and the second angular wheel are vertically meshed, and the sleeve lateral wall is at it
Vertical direction is provided with the first trace, and the second trace is fixed with the bearing, and first trace and second interlock
Bar is isometric, parallel and in same level, and the outer end of first trace and the second trace passes through third connecting rod phase
Even, when side door is in closed mode, the first trace and third connecting rod form an acute angle, the acute angle in junction
For 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082295.1A CN107804145A (en) | 2017-11-07 | 2017-11-07 | A kind of fire-fighting equipment with self-rotating nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082295.1A CN107804145A (en) | 2017-11-07 | 2017-11-07 | A kind of fire-fighting equipment with self-rotating nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107804145A true CN107804145A (en) | 2018-03-16 |
Family
ID=61582955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711082295.1A Withdrawn CN107804145A (en) | 2017-11-07 | 2017-11-07 | A kind of fire-fighting equipment with self-rotating nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107804145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411606A (en) * | 2019-05-20 | 2020-07-14 | 兰州工业学院 | Snow and ice removing vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926325Y (en) * | 2006-05-31 | 2007-07-25 | 三一重机有限公司 | Driver's cab of engineering apparatus |
| CN104399213A (en) * | 2014-12-06 | 2015-03-11 | 河南海力特机电制造有限公司 | High-pressure and fine-water-mist multifunctional vehicle |
| CN105437932A (en) * | 2015-11-26 | 2016-03-30 | 苏州江南航天机电工业有限公司 | Translation type electric top cover for vehicle |
| CN107261366A (en) * | 2017-08-14 | 2017-10-20 | 洪幼芬 | A kind of structural fire protection uses robot architecture |
-
2017
- 2017-11-07 CN CN201711082295.1A patent/CN107804145A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926325Y (en) * | 2006-05-31 | 2007-07-25 | 三一重机有限公司 | Driver's cab of engineering apparatus |
| CN104399213A (en) * | 2014-12-06 | 2015-03-11 | 河南海力特机电制造有限公司 | High-pressure and fine-water-mist multifunctional vehicle |
| CN105437932A (en) * | 2015-11-26 | 2016-03-30 | 苏州江南航天机电工业有限公司 | Translation type electric top cover for vehicle |
| CN107261366A (en) * | 2017-08-14 | 2017-10-20 | 洪幼芬 | A kind of structural fire protection uses robot architecture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411606A (en) * | 2019-05-20 | 2020-07-14 | 兰州工业学院 | Snow and ice removing vehicle |
| CN111411606B (en) * | 2019-05-20 | 2021-05-04 | 兰州工业学院 | Snow and ice removing vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180316 |
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| WW01 | Invention patent application withdrawn after publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Haiting Document name: Notification of Approving Refund |
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| DD01 | Delivery of document by public notice |