CN105735639A - Simple concrete shuttering machine - Google Patents
Simple concrete shuttering machine Download PDFInfo
- Publication number
- CN105735639A CN105735639A CN201610139754.4A CN201610139754A CN105735639A CN 105735639 A CN105735639 A CN 105735639A CN 201610139754 A CN201610139754 A CN 201610139754A CN 105735639 A CN105735639 A CN 105735639A
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- CN
- China
- Prior art keywords
- axle
- inner panel
- mobile jib
- side strut
- stretching
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a simple concrete shuttering machine which comprises a model support. A vibrating motor is arranged at the bottom of the model support, two outer formworks are arranged on the model support, and an inner formwork is arranged between the two outer formworks. Model frames are arranged among the outer formworks and the inner formwork, and positioning strips are further arranged at the bottoms of the model frames. The tops of the two outer formworks are fixedly connected through a fastener, and the bottoms of the two outer formworks are connected with the model support through first hinges. The inner formwork comprises a left inner plate, an upper inner plate and a right inner plate which are sequentially connected through shafts. A power transmission device is arranged at the bottom of the upper inner plate, a lifting mechanism is arranged at the bottom of the power transmission device, and the bottom of the lifting mechanism is connected with a left supporting rod and a right supporting rod through shafts; the left supporting rod is further connected with the left inner plate through a shaft, and the right supporting rod is connected with the right inner plate through a shaft. According to the simple concrete shuttering machine, constructional columns can be manufactured in advance, the speed is high, operation is convenient, quality is reliable, wood resource waste is avoided, and environment damage is reduced.
Description
Technical field
The present invention relates to building field, be specifically related to a kind of simple type concrete formwork machine.
Background technology
Current domestic construction body of wall is greatly to being divided into two kinds, and one is filled wall after first framework, reserved constructional column in body of wall；The second is to build a wall while reserve constructional column.But both ways all be unable to do without wall structure post, usual way is a reserved irregular gap when building a wall, and fills in gap by the reinforcing steel bar cage tied, and is clamped in two sides or multiaspect with plank sheathing, again toward placing concrete in moulding box, firmly act on thus reaching body of wall entirety.It has more operation so that construct loaded down with trivial details, but also needs carpenter's molding, not only lost labor but also waste material, has an effect on the duration, is unfavorable for the development of industry.Also cannot check the quality problems of reserved constructional column on the spot, bury quality problems for follow-up construction.
Summary of the invention
It is an object of the invention to the problem above overcoming prior art to exist, a kind of simple type concrete formwork machine is provided, concrete formwork needed for variously-shaped constructional column can be prepared by the present invention in advance, build by laying bricks or stones with walling unit simultaneously, without using plank molding again, and speed is fast, easy to operate, reliable in quality, avoid the waste of wooden resource, reduce the destruction to environment.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of simple type concrete formwork machine, including model support, it is provided with vibration motor bottom described model support, described model support is provided with two exterior sheathings, it is provided with inner formword between two described exterior sheathings, it is provided with framed and bottom between described exterior sheathing and inner formword and is additionally provided with positioning strip, two described exterior sheathing tops are connected with model support each through the first hinge by the fixing connection of attacker and bottom, described inner formword includes the left side inner panel that axle successively connects, upper inner panel and right side inner panel, it is provided with actuating unit bottom described upper inner panel, it is provided with elevating mechanism bottom described actuating unit, connect with left side strut and right side strut axle bottom described elevating mechanism, described left side strut is also with board shaft in left side even, described right side strut is also with board shaft in right side even.
Further, described actuating unit includes some positive and negative tooth screw mandrels, some described positive and negative tooth screw mandrels are linked to be power transmission shaft by bunch tube, described sleeve pipe is fixed on interior template support, described interior template support surface and upper inner panel are welded and fixed, described power transmission shaft one end is provided with power input device, and described power transmission shaft two ends are erected on the support member at model support two ends.
Further, described elevating mechanism includes positive connecting portion and anti-connecting portion, and the bottom axle of described positive connecting portion and anti-connecting portion connects and top connects with two nut slide unit axles of positive and negative tooth screw mandrel respectively.
Further, the described framed one included in ∩ font model frame, L-shaped model frame, T-shaped model frame or cross model frame, the described framed horse nail by two exterior sheathing inner surfaces coordinates fixing.
Further, left side inner panel and right side inner panel in described ∩ font model frame are straight plate, are provided with roller bottom described straight plate, and described roller is arranged on raceway, and described raceway is fixed on model support surface.
Further, left side inner panel in described L-shaped model frame includes L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, described right side inner panel is straight plate, it is provided with roller bottom the inner panel of described right side, described roller is arranged on raceway, described raceway is fixed on model support surface, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut includes upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
Further, left side inner panel and right side inner panel in described T-shaped model frame all include L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut and right side strut all include upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib to the other end.
Further, it is additionally provided with lining mould in described cross model frame, described lining mould is arranged on upper inner panel surface, described left side inner panel and right side inner panel all include L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut and right side strut all include upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
Further, it is provided with mortar leakage prevention bottom described positioning strip and between inner formword and bottom exterior sheathing and seals leather strap.
Further, described model support is provided below some supporting legs, and described supporting leg is provided with damping spring.
The invention has the beneficial effects as follows:
1, the present invention adopts exterior sheathing, inner formword and framed preparation around one structural type cavity volume of composition to include ∩ font, L-shaped, T-shaped and cross concrete formwork system, and two exterior sheathing tops are set to opening, can conveniently operate grouting, do not have blockage problem, and be also convenient for the smooth construction to constructional column surface；
2, the present invention adopts the cooperation of actuating unit, elevating mechanism, stretching mobile jib and multiple strut easily actuating unit force just can be controlled inner membrance framework and automatically opens and shrink, realize the demoulding of concrete formwork goods, accelerate speed of production, ensure that the quality of product, improve production efficiency simultaneously and reduce the labor intensity of operator；
3, the product of its production is firm, invest little, income big, has wide applicability and expansionary.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.The specific embodiment of the present invention is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in embodiment of the present invention technology, the accompanying drawing used required in the description of embodiment technology will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention one；
Fig. 2 is the exterior sheathing expanded configuration schematic diagram of the embodiment of the present invention one；
Fig. 3 is structural representation when opening and shrink of elevating mechanism part of the present invention；
Fig. 4 is the overall structure schematic diagram of the embodiment of the present invention two；
Fig. 5 is the inner formword structural representation of the embodiment of the present invention three；
Fig. 6 is the inner formword structural representation of the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
Shown in Fig. 3, for preparing the equipment of ∩ font formwork, it includes model support 1, vibration motor 2 it is provided with bottom model support, model support is provided with two exterior sheathings 3, it is provided with inner formword 4 between two exterior sheathings, be provided with between exterior sheathing and inner formword framed 16 and bottom be additionally provided with positioning strip 11, two exterior sheathing tops are connected with model support each through the first hinge by the fixing connection of attacker 12 and bottom, inner formword includes the left side inner panel 41 that axle successively connects, upper inner panel 42 and right side inner panel 43, actuating unit 5 it is provided with bottom upper inner panel, elevating mechanism 6 it is provided with bottom actuating unit, connect with left side strut 71 and right side strut 72 axle bottom elevating mechanism, left side strut is also with board shaft in left side even, right side strut is also with board shaft in right side even.
Framed quantity is at least 2, framed it is set on inner formword, and along formwork length, inner formword is separated out the cavity of multiple formwork, make once to manufacture to prepare multiple concrete formwork goods, and the location of Stability Analysis of Structures, it is possible to conformance with standard, exterior sheathing and inner formword also thus limits, also reduce operation easier while improving entirety preparation precision, improve degree easy to use.
Wherein, actuating unit includes some positive and negative tooth screw mandrels 51, some positive and negative tooth screw mandrels are concatenated into power transmission shaft 511 by sleeve pipe 52, sleeve pipe is fixed on interior template support 53, interior template support surface and upper inner panel bottom welding are fixed, power transmission shaft one end is provided with power input device 54, power transmission shaft two ends are erected on the support member 55 at model support two ends, the positive and negative tooth screw mandrel of power transmission shaft ensure that two nut slide unit can move towards relative direction when power inputs, thus coordinating elevating mechanism to move, power input portion can be then hand cranking handle, reduction equipment electric energy consumption.
Elevating mechanism includes positive connecting portion 61 and anti-connecting portion 62, the bottom axle of positive connecting portion and anti-connecting portion connects and top connects with two nut slide unit 56 axles of positive and negative tooth screw mandrel respectively, positive connecting portion and anti-connecting portion are in the shape of the letter V structure, when two slide units do relatively close motion, V-shaped structural openings diminishes, thus bottom is away from actuating unit, realize declining, when two slide units are relatively distant from motion, V-shaped structural openings becomes big, thus bottom is close to actuating unit, realize rising, its principle is simple and reliable, can stable operation, stretching mobile jib is driven to move up and down.
The framed replacing fixing, convenient and framed by horse nail 33 cooperation of two exterior sheathing inner surfaces.Between exterior sheathing and inner formword, it is additionally provided with mortar leakage prevention bottom positioning strip seals leather strap 13, it is to avoid concrete slurry flows out die cavity, to equipment and prepare environment.Model support is provided with some supporting legs 14, supporting leg is provided with damping spring 15.
Framed for ∩ font model frame 161, left side inner panel and right side inner panel in ∩ font model frame are straight plate, roller 8 it is provided with bottom straight plate, roller is arranged on raceway 81, raceway is fixed on model support surface, roller-coaster, it is possible to sidepiece inner panel distance in vertical direction is shortened, so that upper inner panel declines, this makes it possible to the light demoulding.
The operation principle of the present embodiment is as follows:
During use, exterior sheathing is locked by attacker, inner membrance framework is erected on the support member of two ends, then the positive and negative tooth screw mandrel of hand rotation, the slide unit on its top is relatively close, make elevating mechanism length in the vertical, and it is descending against stretching mobile jib, the left side strut and the right side strut that stretch mobile jib both sides are descending because of it, can only strut to both sides, make left side inner panel and right side inner panel to both sides and positioning strip stretching, die cavity is cooperatively formed with exterior sheathing by framed, then concrete is injected down at inner formword, make die cavity concrete ram-jolt can complete the structure of concrete formwork by the vibrations of vibration motor, then manually surface is simply smoothened the preparation that just can complete concrete formwork product, obtain the concrete formwork product needed for ∩ glyph construction post.Wherein actuating unit can configure multiple according to whole device length, it is ensured that inner formword has good power when opening or shrink.
After preparing, unclamp attacker, exterior sheathing is turned down to both sides, then rotating positive and negative tooth screw mandrel, the slide unit on its top is relatively distant from, so that elevating mechanism rises, causing two side plates to be drawn close to intermediate, inclined, it is achieved the demoulding, the concrete formwork product prepared just can be extracted out from the two ends of internal mold.Whole operation is simple and convenient, and it is little to consume energy, and reduces preparation cost.
Embodiment two
With reference to shown in Fig. 4, embodiment two is the equipment of preparation L-shaped formwork, execute example two to be distinctive in that with embodiment one, framed for L-shaped model frame 162, left side inner panel in L-shaped model frame includes L-type upper plate 411 and straight type lower plate 412, the second hinge 413 is passed through hinged between L-type upper plate and straight type lower plate, right side inner panel is straight plate, it is provided with roller 8 bottom the inner panel of right side, roller is arranged on raceway 81, raceway is fixed on model support surface, bottom elevating mechanism with stretching mobile jib 7 axle even, stretch mobile jib to connect with left side strut and right side strut axle, left side strut includes upper boom 711 and lower beam 712, upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
It is consistent with embodiment that it implements principle, because one apodema is forge piece of step type structure, so exterior sheathing can be coordinated to prepare the die cavity passage of side bending structure, the structure that the structure of exterior sheathing is formed with L-type upper plate and straight type lower plate is consistent, owing to passing through the second chain connection between L-type upper plate and straight type lower plate, so adopting upper boom and lower beam, it is stretched and struts by two parts, and stable equipment operation is offered help.
Embodiment three
With reference to shown in Fig. 5, embodiment three is the equipment of preparation T-shaped formwork, embodiment three and embodiment one are distinctive in that, framed for T-shaped model frame 163, left side inner panel and right side inner panel in T-shaped model frame all include L-type upper plate 411 and straight lower plate 412, the second hinge 413 is passed through hinged between L-type upper plate and straight type lower plate, bottom elevating mechanism with stretching mobile jib 7 axle even, stretch mobile jib to connect with left side strut and right side strut axle, stretch mobile jib to connect with left side strut and right side strut axle, left side strut and right side strut all include upper boom 711 and lower beam 712, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
Inner formword both sides all adopt L-type upper plate and the structure of straight type lower plate composition, and it coordinates exterior sheathing can conveniently prepare T-shaped constructional column.
Embodiment four
With reference to shown in Fig. 6, embodiment four be the equipment preparing cross formwork, and embodiment four and embodiment three are distinctive in that, framed for cross model frame 164, is additionally provided with lining mould 9, serves as a contrast mould and be arranged on upper inner panel surface in cross model frame.Embodiment three is laid on inner formword lining mould and derives a projection by the upper surface of T-shaped internal mold, so both can complete cross structure, its structure also needs to the cooperation of exterior sheathing, exterior sheathing top is also provided with a right angle and protrudes, this part is not in the drawings depending on going out, and the bottom of the exterior sheathing that its structure is corresponding with left side inner panel in Fig. 4 is consistent and forms symmetrical structure.Lining mould can be simple rectangular block, and rectangular block preparation is simple, it is also possible to be rectangle template, and rectangular mold deckle board is beneficial to contraction and the demoulding.
It is fast that this equipment has speed of production, and production efficiency is high, reduce the labor intensity of operator, and the product produced is firm, invest little, income big, has wide applicability and expansionary.
For in above-described embodiment, same or like structure have employed identical label.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a simple type concrete formwork machine, it is characterized in that: include model support, it is provided with vibration motor bottom described model support, described model support is provided with two exterior sheathings, it is provided with inner formword between two described exterior sheathings, it is provided with framed and bottom between described exterior sheathing and inner formword and is additionally provided with positioning strip, two described exterior sheathing tops are connected with model support each through the first hinge by the fixing connection of attacker and bottom, described inner formword includes the left side inner panel that axle successively connects, upper inner panel and right side inner panel, it is provided with actuating unit bottom described upper inner panel, it is provided with elevating mechanism bottom described actuating unit, connect with left side strut and right side strut axle bottom described elevating mechanism, described left side strut is also with board shaft in left side even, described right side strut is also with board shaft in right side even.
2. a kind of simple type concrete formwork machine according to claim 1, it is characterized in that: described actuating unit includes some positive and negative tooth screw mandrels, some described positive and negative tooth screw mandrels are linked to be power transmission shaft by bunch tube, described power transmission shaft is fixed on interior template support by sleeve pipe, described interior template support surface and upper inner panel are welded and fixed, described power transmission shaft one end is provided with power input device, and described power transmission shaft two ends are erected on the support member at model support two ends.
3. a kind of simple type concrete formwork machine according to claim 1, it is characterized in that: described elevating mechanism includes positive connecting portion and anti-connecting portion, the bottom axle of described positive connecting portion and anti-connecting portion connects and top connects with two nut slide unit axles of positive and negative tooth screw mandrel respectively.
4. a kind of simple type concrete formwork machine according to claim 1, it is characterized in that: the described framed one included in ∩ font model frame, L-shaped model frame, T-shaped model frame or cross model frame, the described framed horse nail by two exterior sheathing inner surfaces coordinates fixing.
5. a kind of simple type concrete formwork machine according to claim 4, it is characterized in that: left side inner panel and right side inner panel in described ∩ font model frame are straight plate, being provided with roller bottom described straight plate, described roller is arranged on raceway, and described raceway is fixed on model support surface.
6. a kind of simple type concrete formwork machine according to claim 4, it is characterized in that: the left side inner panel in described L-shaped model frame includes L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, described right side inner panel is straight plate, it is provided with roller bottom the inner panel of described right side, described roller is arranged on raceway, described raceway is fixed on model support surface, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut includes upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
7. a kind of simple type concrete formwork machine according to claim 4, it is characterized in that: left side inner panel and right side inner panel in described T-shaped model frame all include L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut and right side strut all include upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
8. a kind of simple type concrete formwork machine according to claim 4, it is characterized in that: in described cross model frame, be additionally provided with lining mould, described lining mould is arranged on upper inner panel surface, described left side inner panel and right side inner panel all include L-type upper plate and straight lower plate, by the second hinge between described L-type upper plate and straight type lower plate, bottom described elevating mechanism with stretching mobile jib axle even, described stretching mobile jib connects with left side strut and right side strut axle, described left side strut and right side strut all include upper boom and lower beam, described upper boom one end connects with stretching mobile jib upper axis, the other end is with axle portion axle even, described lower beam one end connects the other end with board shaft under straight type even with stretching axle bottom mobile jib.
9. a kind of simple type concrete formwork machine as claimed in any of claims 1 to 8, it is characterised in that: it is provided with mortar leakage prevention bottom described positioning strip and between inner formword and bottom exterior sheathing and seals leather strap.
10. a kind of simple type concrete formwork machine according to claim 1, it is characterised in that: described model support is provided below some supporting legs, and described supporting leg is provided with damping spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873566X | 2015-12-02 | ||
| CN201510873566 | 2015-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105735639A true CN105735639A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139754.4A Pending CN105735639A (en) | 2015-12-02 | 2016-03-11 | Simple concrete shuttering machine |
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| CN (1) | CN105735639A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102689348A (en) * | 2012-06-15 | 2012-09-26 | 苏州千瑞机电科技有限公司 | Smoke gas flue production machine |
| CN202716356U (en) * | 2012-06-15 | 2013-02-06 | 苏州千瑞机电科技有限公司 | Machine for producing flue-gas channel |
| CN103934897A (en) * | 2013-01-23 | 2014-07-23 | 苏州千瑞机电科技有限公司 | Shrinkable smoke and gas exhaust pipeline inner mold device |
| CN104175397A (en) * | 2013-05-22 | 2014-12-03 | 苏州千瑞机电科技有限公司 | Multifunctional fume duct production machine |
| CN205400045U (en) * | 2015-12-02 | 2016-07-27 | 苏州千瑞机电科技有限公司 | Simple and easy type concrete mould shell machine |
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2016
- 2016-03-11 CN CN201610139754.4A patent/CN105735639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689348A (en) * | 2012-06-15 | 2012-09-26 | 苏州千瑞机电科技有限公司 | Smoke gas flue production machine |
| CN202716356U (en) * | 2012-06-15 | 2013-02-06 | 苏州千瑞机电科技有限公司 | Machine for producing flue-gas channel |
| CN103934897A (en) * | 2013-01-23 | 2014-07-23 | 苏州千瑞机电科技有限公司 | Shrinkable smoke and gas exhaust pipeline inner mold device |
| CN104175397A (en) * | 2013-05-22 | 2014-12-03 | 苏州千瑞机电科技有限公司 | Multifunctional fume duct production machine |
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Application publication date: 20160706 |
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