CN208347346U - A kind of chimney class structures dismounting device - Google Patents
A kind of chimney class structures dismounting device Download PDFInfo
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- CN208347346U CN208347346U CN201820893281.1U CN201820893281U CN208347346U CN 208347346 U CN208347346 U CN 208347346U CN 201820893281 U CN201820893281 U CN 201820893281U CN 208347346 U CN208347346 U CN 208347346U
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- 238000004880 explosion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 238000005422 blasting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000002271 resection Methods 0.000 description 2
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- 230000002708 enhancing effect Effects 0.000 description 1
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- 239000000284 extract Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of chimney class structures dismounting device, is suitable for high-altitude demolishing buildings.It is hung by tower crane and sets cutting machine and crane, cutting machine can clamp a part of chimney, and then chimney is disintegrated with one piece one piece of cast-cutting saw, is hung to ground with crane.Device provided by the utility model, does not have in the prior art, does not have to build job platform on chimney using the present apparatus, does not need to greatly reduce manpower and material resources, it is important that improve safety using pollutions means such as explosions yet.The utility model has carried out special designing in cutting, can not only guarantee that cutting times are few as far as possible, but also do not move knife repeatedly.
Description
Technical field
The utility model belongs to structures demolition technique field, especially a kind of dismounting device of chimney class structures.
Background technique
Chimney class towering structure dismounting difficulty is larger, and method for dismounting can be divided into explosion at present and forcible entry two is hit in layering
Class.Wherein, the method for dismounting use scope of directional blasting is relatively broad, but some chimneys are in building dense area, and chimney collapses
Place it is limited, it is more and more to the limitation of noise and dust and with the enhancing of environmental consciousness.The directional blasting of chimney will be by
Gradually step down from the stage of history.And be layered the mode hit and dismantled and then need the higher scaffold of built, or have dedicated equipment, by
Upper successively to remove downwards, not only project amount is big, and material cost is high, and full manual operation, and operation and support staff's quantity are more, on
Lower scene, low efficiency, difficulty of construction is big, and there are biggish security risks.
Therefore it needs to propose a kind of skyscraper that remove cost and construction personnel's quantity, comparatively safe can be greatly reduced
Remove mechanism.
Utility model content
For the deficiency for overcoming the prior art, the utility model provides a kind of chimney class structures dismounting device, which sets
Meter is rationally, structure is simple, operating method is easy, and human cost can especially be greatly reduced, and improves personnel safety.
The utility model takes following technical scheme: a kind of chimney class structures remove device, including tower crane, cutting machine,
Crane, the tower crane, which is hung, sets cutting machine and crane；
Wherein, the cutting machine includes a bottom plate, is provided with installing mechanism on the bottom plate, being additionally provided with can both put down
Row turns round in base plate plane, can make the link mechanism moved forward and backward relative to base plate plane again；
The link mechanism includes one second revolving support, and second revolving support includes a motor and turntable, described
A large arm, the hinged forearm of large arm are connected on turntable, a big arm cylinder is connected between the turntable and large arm, a forearm
Oil cylinder is connected between the large arm and forearm；The forearm other end connects third revolving support, the third revolving support
End connects cast-cutting saw；
For the cast-cutting saw under the drive of the link mechanism, vertical position or horizontal position can be presented in saw blade.
Further, the bottom base plate is provided with mounting hole；The installing mechanism includes the first revolving support, and described the
Single-revolution support includes a motor, and motor output end connects single-revolution mechanism, surrounds the motor centre of gyration on the swing mechanism
Equal circumference installs two propulsive mechanisms, and one of propulsive mechanism connects electric drill, another propulsive mechanism is loaded bolt, works as motor
When starting, two propulsive mechanisms can be directed at the position of the bottom plate upper installing hole respectively, punch towards chimney and install spiral shell
Bolt.
Further, the bottom plate, top are provided with hydraulic cylinder installation support plate, and a hydraulic cylinder is installed on it, the bottom
Chimney is clamped in centre by the piston rod of plate and the hydraulic cylinder.
Further, the third revolving support includes a motor and shaft, and the motor fixing end is connected to described small
On arm, the roller end connects cast-cutting saw.
Further, the shaft is an axis of a curve.
Device provided by the utility model, does not have in the prior art, and the utility model core concept is that chimney is layered
Piecemeal cutting, cuts down one piece one piece of chimney in the way of pitch of the laps piecemeal in each layer.Do not had to using the present apparatus in cigarette
Job platform is built on chimney, is not also needed using pollutions means such as explosions, it is only necessary to electric saw be set on cutting machine, controlled in tower crane
The operation device keys such as automatically controlled, hydraulic are made, greatly reduce manpower and material resources, and improve working efficiency, it is important that operation
Personnel drive in-house operation in tower crane, and safety greatly improved.By cleverly designing on cutter device, so that cutting exists
When horizontal, vertical tool changing, it can guarantee to join between horizontal, vertical cutting line, and Cutting Length can be extended, such as forearm upper end is only
It erects and sets third revolving support, cast-cutting saw can be turned round, and crankshaft is arranged on third revolving support to finely tune the upper of cast-cutting saw
Lower or left-right position guarantees vertical and horizontal cutting line intersection, structure is avoided to interfere.
Other feature and advantage of the utility model will illustrate in the following description, and partial from specification
It becomes apparent, or is understood and implementing the utility model.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitations of the present invention, entire
In attached drawing, identical reference symbol indicates identical component.
Fig. 1 is that the utility model removes device overall schematic.
Fig. 2-1 is cutting machine main view；
Fig. 2-2 is cutting side view.
Fig. 3 is cutter bottom plate schematic diagram.
Fig. 4 is the structural schematic diagram of the first revolving support.
Fig. 5 is the cutting route figure of top cutting initial phase.
Fig. 6 is the cutting route figure in top cutting end of a period stage.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples, wherein attached drawing constitutes the application one
Part, and be used to illustrate the utility model together with the embodiments of the present invention.But it will be appreciated by those skilled in the art that
Following embodiment is not the unique restriction made to technical solutions of the utility model, all in technical solutions of the utility model spirit
The lower any equivalents or change done of essence, are regarded as belonging to the protection scope of the utility model.
The utility model removes device, as shown in Figure 1, being mainly made of three parts: tower crane 100, is hung cutting machine 200
Vehicle 300, wherein tower crane 100 and crane 300 can use prior art products；Cutting machine 200 is lifted by coaster in tower crane 100
With crane 300, tower crane 100, which is mainly used for slinging cutting machine 200, to be attached it on chimney, and the chimney block that will be cut down
It is hung by crane 300 to ground；Cutting machine 200 is the utility model structure emphasis, blocking for cutting chimney, then with hanging
Vehicle 300 is hung away；After the completion of to be cut, the part cut down is slowly put for clamping chimney in cutting process for crane 300
To ground, avoid causing vibration and noise because of weight falling from high altitude.
Cutting machine 200, as shown in Fig. 2-1,2-2, including cast-cutting saw 1, third revolving support 2, forearm 3, large arm 4, electric drill
5, oil cylinder of small arm 6, big arm cylinder 7, bottom plate 8, cast-cutting saw motor 10, the second revolving support 11, the first revolving support 12, hydraulic cylinder
13 equal components.
One piece of bottom plate 8 is set on cutting machine, as shown in figure 3, for fixing the other parts of cutting machine, and by cutting machine
It is fixed on chimney.Hydraulic cylinder is set at the top of bottom plate 8, support plate 14 is installed, hydraulic cylinder 13 is installed on it, bottom plate 8 and hydraulic cylinder 13
Piston rod constitute horizontally-opposed relationship, centre can clamp chimney 9；The bottom of bottom plate 8 is provided with mounting hole 15, and quantity is at least
It is one, generally 2-4 is arranged symmetrically, as wearing connecting bolt.
First revolving support 12 is set at the periphery of mounting hole 15 or the center of multiple mounting holes 15, described first
Revolving support 12 can rotate, and function is that the rotation of electric drill 5 can be driven to find position corresponding with mounting hole 15, through mounting hole
15 punch on chimney 9, then can also throw bolt in hole into, and thus bottom plate 8 is fixed on chimney 9, guarantee 8 lower end of bottom plate
Stability.
Specifically, the structure of the first revolving support 12 may be such that as shown in figure 4, it is mounted on bottom plate 8 including one
On motor 121, motor output end connects single-revolution mechanism 122, eccentrically mounted two propulsive mechanisms on the swing mechanism 122
123, one of propulsive mechanism connects electric drill 5, another propulsive mechanism is loaded bolt；It is designed by reasonable structure size,
When the first revolving support 12 drives swing mechanism 122 to rotate, electric drill 5 can be made to be directed at a mounting hole 15, electric drill 5 and mounting hole
After 15 correspond to well, punched on chimney 9, then the first revolving support 12 is threaded through an angle, and so that bolt is directed at two holes,
Bolt is installed, fixed bottom plate 8 prevents bottom plate 8 relative to the axial rotation of hydraulic cylinder 13 on the Kong Shangyu mounting hole 15 of chimney 9.It is logical
It crosses bottom plate 8 and hydraulic cylinder 13 is clamped in 9 top edge of chimney, the lower end of bottom plate 8 is fixed on chimney 9 by bolt, can be made whole
A cutting machine is stablized in high aerial holding, is conducive to operation.
Further, propulsive mechanism can be hydraulic cylinder or motor-driven screw mechanism.
As shown in Fig. 2-1,2-2, bottom plate 8 bottom, be located at the first revolving support 12 above, also install second revolution props up
11 are supportted, connects large arm 4 on the second revolving support 11, and realize and drive large arm 4 in the revolution being parallel in 8 plane of bottom plate.Meanwhile
Big arm cylinder 7 is articulated between the second revolving support 11 and large arm 4, may be implemented that large arm 4 is driven to do front and back relative to bottom plate 8
To swing.
Further, the second revolving support 11, which can be, drives turntable by a motor, hinged large arm 4 on turntable, simultaneously
Hinged big arm cylinder 7；The end of the hinged large arm 4 of turntable, the intermediate position of the hinged large arm 4 of big arm cylinder 7.
The hinged forearm 3 of the other end of large arm 4；6 one end of oil cylinder of small arm and large arm 4 are hinged, and the other end and forearm 3 are hinged, use
It is turned round in drive forearm 3 around large arm 4.Forearm 3 is for connecting large arm 4 and third revolving support 2,2 fixing end of third revolving support
It is mounted on forearm 3, movable end connects cast-cutting saw 1.Further, third revolving support 2 can also be a motor-driven shaft,
Wherein shaft connects cast-cutting saw 1, cast-cutting saw can be driven to rotate.Cast-cutting saw 1 is installed on cutting motor 10 for cutting chimney 9
Above, cutting motor 10 is mounted in shaft.
Summarize above-mentioned, which can be understood as a kind of both can satisfy and be parallel to 8 plane of bottom plate and (be similar to phase
To chimney 9) revolution, while again can relative to bottom plate 8 close to or far from device.Wherein the second revolving support 11 drives large arm
4 can allow to generate upper and lower or left and right displacement relative to bottom plate 8 along the plane rotation for being parallel to bottom plate 8；Big arm cylinder
7 Support large arms 4, the flexible of oil cylinder can drive large arm 4 close to or far from bottom plate 8, move forward and backward relative to the generation of bottom plate 8.Only
Have and have these motor functions, in the air could cut down 9 piecemeal of chimney in height, and guarantee safety.These movements can lead to
It crosses a set of hinged link mechanism and is mounted on rotation center and realize.
Further, to extend Cutting Length as much as possible, the utility model has done special designing in partial structurtes,
A kind of middle method is: in the second revolving support 11 with 4 structural relation of large arm, large arm 4 being articulated with the second revolving support 11
Eccentric part, as shown in Fig. 2-2, bias can hingedly make large arm be in revolution edge, drive cast-cutting saw along the side of revolving support
Cutting, cutting line extend to the utmost.
Further, it is contemplated that articulated linkage is likely to cause structure interference in telescopic process, makes transverse and longitudinal cutting seam nothing
Method crosslinking, to solve this problem, the shaft 21 that third revolving support 2 is connect with cast-cutting saw 1 is designed to song by the utility model
Spool, as shown in Fig. 2-2.Axis of a curve motor-driven, when encountering cast-cutting saw by longitudinally cutting steering transverse cuts, or
When turning to longitudinally cutting by transversely cutting, when causing horizontal, longitudinal joint gap that can not be crosslinked due to structure interference, it can be driven with motor bent
Spool rotates 180 degree, faces upward or downward cast-cutting saw, towards a left side or bears right and change angle, makes it and the gap pair that is cut into before
It connects, thus just chimney piecemeal can be made to cut down.
Further, oil cylinder connection also can be set between the forearm 3 and third revolving support 2, make third revolution branch
Support 2 can also more increase the flexibility of mechanism relative to small arm swing in this way.
Also further, hinged, the hinged and forearm oil of forearm 3 and large arm 4 of large arm 4 and the second revolving support 11
Cylinder 6,7 both ends of big arm cylinder it is hinged, can using pin shaft connect, can also be used universal joint connection, transformation angle can be cleverer
It is living.
When work, cutting machine 200 is hung to above chimney by tower crane 100, and bottom plate 8 is fixed on chimney top edge and implements to cut
It cuts, is based on device provided by the utility model, cutting method also has particularity, and cutting route figure is shown in Fig. 5, Fig. 6, specific implementation
Step can be as follows:
1, build tower crane in the suitable position in chimney side first, make tower crane height be higher than chimney add cutting machine height it
With.
2, hydraulic and electric appliance the pipeline and route of cutting machine and crane are connected in advance, then utilize tower crane by cutting machine
And crane is sling above chimney.
3, manipulator is in tower hands- operation, and cutting machine is hung over chimney top edge, and passes through hydraulic cylinder 13 and cutting machine
Bottom plate 8 clamps chimney top edge, tentatively fixed cutting machine.
4, start the first revolving support 12, electric drill 5 is made to be directed at the mounting hole on bottom plate 8, promotion of the electric drill 5 in propulsive mechanism
Under to chimney wall drilling, then electric drill exits；Revolving support turns round certain angle, and another propulsive mechanism is by bolt advancement holes
It is interior, override interrupt movement, until having beaten two holes.In case of electric drill motor feedback resistance is excessive, (i.e. drill bit is beaten in drill process
When on to metals such as steel gold), drill bit directly exits, and continually looks for other position punching.
5, big arm cylinder 6, oil cylinder of small arm 7 are adjusted, so that cast-cutting saw 1 is higher than edge on chimney, and be located at the right side of bottom plate 8,
It is then turned on cutting motor 10, cuts chimney 9 from top to bottom along 8 right side edge of bottom plate, until large arm, forearm bending degree reach
1. extreme position forms vertical cutting line.
6, it is then log out cast-cutting saw 1, extracts the bolt of bottom plate lower end, hydraulic cylinder 13 is withdrawn, makes cutting machine edge along chimney
Be moved to the left a station (left side of cutting line 3. in figure, this station be no more than large arm, forearm and cast-cutting saw total length it
With), then bottom plate 8, hydraulic cylinder 13, bolt etc. are implemented to fix again.At this point, also crane 300 is hung tower crane 100 to chimney top
Vehicle 300 holds the chimney top edge on 200 right side of cutting machine in the month.
7, the second revolving support 11 is then rotated in a clockwise direction 90 degree, keeps large arm 4 and its mechanism being connected
Horizontality, and trail to the right large arm 4 and forearm 3, cast-cutting saw 1 are horizontal.
8, third revolving support 2 is rotated in the counterclockwise direction 180 degree, makes cast-cutting saw saw blade upward, it is therefore an objective to crosscutting
When so that transverse joint is connected with the perps cut before；Then start cutting motor 10, cast-cutting saw is in the 1. right side side of cutting line before
It is cut to right-to-left, forms lateral cutting line 2., until 1. intersecting with cutting line.
9, be then log out cast-cutting saw 1, the second revolving support 11 be rotated in the counterclockwise direction 90 degree again, make large arm 4 and its
The mechanism back vertical state being connected, and stretch large arm 4 and forearm 3 upwards makes cast-cutting saw 1 be located at edge on chimney, then by the
Three revolving supports 2 are rotated in a clockwise direction 180 degree, make cast-cutting saw saw blade towards the right side, it is therefore an objective to guarantee to make perps therewith when perpendicular cut
The transverse joint of preceding cutting connects；Then start cutting motor 10, cast-cutting saw is cut vertically downwards, forms vertical cutting line
3. until 2. intersecting with cutting line.
At this point, the cutting cube 1., 2., 3. constructed by cutting line is kept completely separate in chimney, so that it may fall by crane.
10, it is moved to the left a station again, repeats to fix, crane 300 holds the chimney top edge on 200 right side of cutting machine in the month；
Then transversal cutting steps are repeated, make cast-cutting saw since the place 3. intersected with cutting line, from right to left horizontal resection, are formed
Cutting line is 4.；
11, vertical cutting step then is repeated, forms vertical cutting line 5., intersects cutting line 5. 4. with cutting line.
At this point, the cutting cube 3., 4., 5. constructed by cutting line is kept completely separate in chimney, can fall by crane.
12, the horizontal, vertical cutting step of step 10,11 is repeated, until the remainder N of top layer's height chimney cutting is horizontal
The sum of direction deficiency large arm, forearm and cast-cutting saw total length when being unsatisfactory for a station, discharge cutting machine lifting rope, make to cut
Machine falls to next layer height of cutting remainder on the right side of remainder, and fixed, as shown in Figure 6.
13, according to the method vertically cut, allow cast-cutting saw 1 along the right side edge of the remainder N of upper level to incision
It cuts, forms vertical cutting line 6..
14, it is then log out cast-cutting saw 1, is moved to the left on the left of cutting machine 200 to the remainder N of upper level, and fixed
On the chimney of next layer height, according to the method for transverse cuts, allow cast-cutting saw 1 since the place 6. intersected with cutting line,
7. horizontal resection from right to left forms cutting line；Crane 300 holds remainder N in the month at this time.
15, cast-cutting saw 1 is exited again, according to the method vertically cut, allows cast-cutting saw 1 along the remainder N's of upper level
Left side edge is cut downwards, forms vertical cutting line 8., until 8. 7. vertical cutting line intersects with lateral cutting line.
At this point, the cutting cube 6., 7., being 8. made of cutting line is kept completely separate in chimney, can fall by crane.
So far, the chimney of upper level has been cut completely, and a notch has been formed in the chimney of next layer height,
It can continue to cut down according to the method described above, until the cutting of the next layer of completion, again next layer ... chimney.
16, finally, not will cause danger when the height of remaining chimney is enough to remove equipment with ground or is manually removed
When, just no longer use this equipment.
This method is the equal of that chimney is divided into several height layers, and each layer of maximum height is that cutting machine can vertically be cut
The maximum length cut.Then one piece of block of chimney is cut down in the way of pitch of the laps piecemeal in each layer.Not using this method
With building job platform on chimney, it is only necessary to control the operation buttons such as electric-controlled hydraulic in tower crane, greatly reduce people
Power material resources, and improve working efficiency, it is important that operator drives in-house operation in tower crane, and safety greatly improved.This
The cutting rubbish that kind of method generates, is hung away by crane and is put down, reduced and do not break up, fall, thus will not generate dust and
Noise pollution.
In cutting process, in horizontal, vertical tool changing operation, the second revolving support 11 and third revolving support are constantly adjusted
2 angle keeps cutting route long as far as possible, and guarantees the handover between horizontal, vertical cutting line, for example the utility model is by large arm
4 are set to the edge of the second revolving support 11, not only can be to avoid the interference of 11 ontology of the second revolving support, but also can extend cutting
Length can reach the position of the edge center line of the second revolving support 11；3 upper end of forearm is independently arranged third revolving support
2, cast-cutting saw 1 can be turned round, and the crankshaft being arranged on third revolving support 2 can finely tune the upper and lower or left-right position of cast-cutting saw 1,
Guarantee vertical and horizontal cutting line intersection, structure is avoided to interfere.
In addition, which knife the utility model first cuts in design, in terms of cutting which knife afterwards, special designing has also been carried out,
If above-mentioned steps describe, it can not only guarantee that cutting times were few as far as possible in this way, but also do not move knife repeatedly, both crane facilitated to clamp,
Guarantee that cutting fragment does not fall again.
Claims (6)
1. a kind of chimney class structures remove device, it is characterised in that: including tower crane, cutting machine, crane, the tower crane, which is hung, to be set
Cutting machine and crane；
Wherein, the cutting machine includes a bottom plate, is provided with installing mechanism on the bottom plate, being additionally provided with can both be parallel to
Base plate plane revolution can make the link mechanism moved forward and backward relative to base plate plane again；
The link mechanism includes one second revolving support, and second revolving support includes a motor and turntable, the turntable
One large arm of upper connection, the hinged forearm of large arm, a big arm cylinder are connected between the turntable and large arm, an oil cylinder of small arm
It is connected between the large arm and forearm；The forearm other end connects third revolving support, third revolving support end
Connect cast-cutting saw；
For the cast-cutting saw under the drive of the link mechanism, vertical position or horizontal position can be presented in saw blade.
2. chimney class structures according to claim 1 remove device, it is characterised in that: the bottom base plate is provided with peace
Fill hole；The installing mechanism includes the first revolving support, and first revolving support includes a motor, motor output end connection one
Swing mechanism installs two propulsive mechanisms, one of pusher around motor centre of gyration equal circumference on the swing mechanism
Structure connects electric drill, another propulsive mechanism is loaded bolt, and when the motor is energized, two propulsive mechanisms can be directed at the bottom respectively
The position of plate upper installing hole punches towards chimney and installs bolt.
3. chimney class structures according to claim 1 or 2 remove device, it is characterised in that: the bottom plate, top setting
There is hydraulic cylinder that support plate is installed, a hydraulic cylinder is installed on it, and chimney is clamped in by the piston rod of the bottom plate and the hydraulic cylinder
It is intermediate.
4. chimney class structures according to claim 1 remove device, it is characterised in that: the third revolving support includes
One motor and shaft, the motor fixing end are connected on the forearm, and the roller end connects cast-cutting saw.
5. chimney class structures according to claim 4 remove device, it is characterised in that: the shaft is an axis of a curve.
6. chimney class structures according to claim 1 remove device, it is characterised in that: the large arm is articulated with described turn
Eccentric part on disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893281.1U CN208347346U (en) | 2018-06-11 | 2018-06-11 | A kind of chimney class structures dismounting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893281.1U CN208347346U (en) | 2018-06-11 | 2018-06-11 | A kind of chimney class structures dismounting device |
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| Publication Number | Publication Date |
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| CN208347346U true CN208347346U (en) | 2019-01-08 |
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| CN201820893281.1U Active CN208347346U (en) | 2018-06-11 | 2018-06-11 | A kind of chimney class structures dismounting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571183A (en) * | 2018-06-11 | 2018-09-25 | 威海市华塔建筑机械有限公司 | A kind of chimney class structures remove device and method for dismounting |
-
2018
- 2018-06-11 CN CN201820893281.1U patent/CN208347346U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571183A (en) * | 2018-06-11 | 2018-09-25 | 威海市华塔建筑机械有限公司 | A kind of chimney class structures remove device and method for dismounting |
| CN108571183B (en) * | 2018-06-11 | 2023-12-19 | 威海市华塔建筑机械有限公司 | Chimney structure dismantling device and method |
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Denomination of utility model: A demolition device for chimney structures Effective date of registration: 20230309 Granted publication date: 20190108 Pledgee: Shandong Wendeng Rural Commercial Bank Co.,Ltd. science and technology sub branch Pledgor: WEIHAI CITY TOWER BUILDING MACHINERY CO.,LTD. Registration number: Y2023370000051 |
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