CN108380630A - Foundation pit dust guard - Google Patents
Foundation pit dust guard Download PDFInfo
- Publication number
- CN108380630A CN108380630A CN201810293584.4A CN201810293584A CN108380630A CN 108380630 A CN108380630 A CN 108380630A CN 201810293584 A CN201810293584 A CN 201810293584A CN 108380630 A CN108380630 A CN 108380630A
- Authority
- CN
- China
- Prior art keywords
- keel
- foundation pit
- pull rod
- dust guard
- collapsible
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 43
- 230000000694 effects Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention discloses a kind of foundation pit dust guards, the second keel of more first keel and Duo Gen including being across the opposite sides at the top of foundation pit, first keel and the second keel are arranged and alternate in the same direction, the end of first keel is connected with bicarinate end by collapsible pull rod, the end of the first keel is movably connected in the middle part of collapsible pull rod at foldable and folding, the both ends of collapsible pull rod are articulated with the bicarinate end of the first keel both sides correspondingly, bicarinate end is further provided with roller structure, it is covered with dustcloth on first keel and the second keel.The present invention is linked together more first keel and the second keel using collapsible pull rod, constitutes Collapsible rack, and dustcloth is covered in the top of Collapsible rack, and Collapsible rack is convenient for folding and expansion, can be covered foundation pit at any time and be opened foundation pit, easy to use.
Description
Technical field
The present invention relates to foundation pit construction technical field more particularly to a kind of foundation pit dust guards.
Background technology
Metro station construction mostly uses greatly cut and cover tunneling, and pit earthwork excavation is very serious to the dust pollution of air, existing
It is more be to build steel cage canopy, steel cage canopy uses steel construction, and build process is complicated, and cost input is high, to the duration have compared with
Big influence, and later stage dismounting is cumbersome.
Invention content
It is existed in the prior art or potential shortcoming in view of above-mentioned, the present invention provides a kind of simple in structure, installations
It is convenient and can be with the foundation pit dust guard with dress.
To achieve the above object, the present invention provides a kind of foundation pit dust guards comprising the phase being across at the top of foundation pit
To the second keel of more first keel and Duo Gen of both sides, first keel and second keel setting and mutually friendship in the same direction
It replaces, the end of first keel is connected with the bicarinate end by collapsible pull rod, in the collapsible pull rod
Portion is foldable and folding at be movably connected on the ends of the first keel, the both ends of the collapsible pull rod are articulated with correspondingly
The bicarinate end of first keel both sides, the bicarinate end are further provided with roller structure, institute
It states and is covered with dustcloth on the first keel and second keel.
Using above-mentioned technical proposal, more first keel and the second keel are linked together using collapsible pull rod, structure
At Collapsible rack, dustcloth is covered in the top of Collapsible rack, and Collapsible rack is convenient for folding and expansion, can be covered at any time
Foundation pit and opening foundation pit, it is easy to use；The bottom of Collapsible rack can be convenient for the folding of collapsible pull rod by the way that roller structure is arranged
Folded and expansion, consequently facilitating the folding and expansion of Collapsible rack, when expansion, can cover at the top of foundation pit, prevent from producing when open-cut foundation ditch
Raw airborne dust.
In the embodiment of foundation pit dust guard of the present invention, the flexible connection is hinged.
In the embodiment of foundation pit dust guard of the present invention, the collapsible pull rod includes the first pull rod rotated around first axle
With the second pull rod, the first end of first pull rod and second pull rod is rotationally connected with the first axle, and described first draws
The second end of bar and second pull rod is articulated with the bicarinate end of both sides.
In the embodiment of foundation pit dust guard of the present invention, the first axle is affixed or is formed in the end of first keel
Portion.
In the embodiment of foundation pit dust guard of the present invention, the bicarinate end has extended to form the second axis, described
The second end of first pull rod and second pull rod is formed with the through hole worn for second axis.
In the embodiment of foundation pit dust guard of the present invention, the roller structure includes being connected to the bicarinate end
Roller support and the idler wheel for being installed on the roller support.
In the embodiment of foundation pit dust guard of the present invention, it is equipped with and supplies at the top of the foundation pit along an at least side for foundation pit
The race that the roller structure rolls.
In the embodiment of foundation pit dust guard of the present invention, the top of the foundation pit is equipped with collar tie beam, and opposite the two of the collar tie beam
Side is respectively equipped with the race.
In the embodiment of foundation pit dust guard of the present invention, first keel and second keel are middle part to far from base
The curved rod that the side in hole is arched upward.
In the embodiment of foundation pit dust guard of the present invention, the dustcloth is fixed in first keel and second dragon
On bone, and the lower surface of the dustcloth fits in first keel and second keel, the side patch of the dustcloth
Together in the collapsible pull rod.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Structural schematic diagram when Fig. 1 is the foundation pit dust guard expansion of the embodiment of the present invention.
Fig. 2 is the partial structural diagram when foundation pit dust guard of the embodiment of the present invention folds.
Fig. 3 is the structure enlargement diagram of the collapsible pull rod shown in the A nodes in Fig. 1 embodiments.
Fig. 4 is the structure top view of the collapsible pull rod shown in the A nodes in Fig. 1 embodiments.
Fig. 5 is the structural schematic diagram of the roller structure in the foundation pit dust guard in Fig. 1 embodiments.
Fig. 6 is the use state diagram of the foundation pit dust guard in Fig. 1 embodiments.
Fig. 7 is the structure top view of Fig. 6.
Fig. 8 is the mounting structure schematic diagram of the foundation pit dust guard and race in Fig. 1 embodiments.
Fig. 9 is the structure enlargement diagram at the B node in Fig. 8 embodiments.
Figure 10 is the structural schematic diagram when foundation pit dust guard in Fig. 8 folds.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
Include mainly being across at the top of foundation pit the technical solution adopted by the present invention is that providing a kind of foundation pit dust guard
Opposite sides the second keel of more first keel and Duo Gen, wherein those first keel and those second keel are set in the same direction
It sets and alternates, the end of the first keel is connected with bicarinate end by collapsible pull rod, in the middle part of collapsible pull rod
The end of the first keel is movably connected at foldable and folding, the both ends of collapsible pull rod are articulated with the first dragon correspondingly
Two bicarinate ends of bone both sides, in addition, bicarinate end is further provided with roller structure, the first keel and
It is covered with dustcloth on two keel.
The present invention is linked together more first keel and the second keel using collapsible pull rod, constitutes foldable branch
Frame, dustcloth are covered in the top of Collapsible rack, and Collapsible rack is convenient for folding and expansion, can cover foundation pit and opening at any time
Foundation pit, it is easy to use；The bottom of Collapsible rack can be convenient for the folding and expansion of collapsible pull rod by the way that roller structure is arranged,
Consequently facilitating the folding and expansion of Collapsible rack, when expansion, can cover at the top of foundation pit, can effectively prevent generating when open-cut foundation ditch
Airborne dust enter air, meanwhile, the cost of material is low for foundation pit dust guard of the invention, easy to process, and it is convenient to install and dismantle.
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
Shown in Fig. 1, the foundation pit dust guard include by more first keel 11, more second keel 12 and
The Collapsible rack that multigroup collapsible pull rod 13 is composed, and multigroup roller structure 14 set on the Collapsible rack bottom
With the dustcloth (not showing dustcloth in figure) being covered at the top of the Collapsible rack.
Wherein, the first keel 11 and the second keel 12 are arranged and alternate in the same direction, coordinate shown in Fig. 1~5, the first keel
11 and second keel 12 be all made of the curved rod with certain camber, and the middle part of curved rod is arched upward to the side far from foundation pit.
The end of first keel 11 and the end of the second keel 12 are linked together by collapsible pull rod 13, during collapsible pull rod 13 is
Portion is foldable and folding at be movably connected on the ends of the first keel 11, the both ends of collapsible pull rod 13 are articulated with correspondingly
The end of two second keel 12 of 11 both sides of the first keel, by multigroup collapsible pull rod 13 by the first whole keel 11
It links together with the second keel 12, constitutes the Collapsible rack of organ type.Further, every group of collapsible pull rod 13 is further
It is made of one first pull rod 131 and one second pull rod 132, the first end of first pull rod 131 and the first of second pull rod 132
End is close together and is rotationally connected with simultaneously in a first axle 111 so that the first pull rod 131 and the second pull rod 132 can phases
First axle 111 is rotated, the first end of the first pull rod 131 is articulated with the first end of the second pull rod 132, constitutes collapsible pull rod
It is located at the centre position of collapsible pull rod 13 at 13 folding, and at the folding.Wherein, which may connect to first
The end of keel 11, it is also possible that the end of the first keel 11 extends to form the first axle 111, to enable the end of the first keel 11
Portion is connected at the folding of collapsible pull rod 13.
The second end of first pull rod 131 of collapsible pull rod 13 and the second end of the second pull rod 132 are hingedly connected to both sides
Two second keel 12 end, the end of the second keel 12 extends to form the second axis 121, the second end of the first pull rod 131
Offer the through hole worn for the second axis 121 with the second end of the second pull rod 132 so that the second end of the first pull rod 131 and
The second end of second pull rod 132 is hingedly connected to the end of two second keel 12 of both sides by the second axis 121, such as Fig. 3 and
Shown in Fig. 4.
Further, it is respectively formed monaural plate (single otic placode) at the both ends of the first pull rod 131, in the second pull rod 132
Both ends are respectively formed bi-lug plate (two opposite otic placodes), and the monaural plate in the first end of the first pull rod 131 is inserted in the second pull rod
Between bi-lug plate in 132 first end, and correspondence opens up through hole for first axle 111 on the monaural plate and bi-lug plate
It wears, constitutes a hinge；Similarly, the monaural plate in the second end of the first pull rod is inserted into one second adjacent pull rod
Bi-lug plate in second end, then accordingly on the monaural plate and bi-lug plate through hole is opened up to supply the second axis 121 to wear, it constitutes
Another hinge.In this way, using multiple collapsible pull rods 13 that more first keel 11 being arranged alternately side by side and Duo Gen second are imperial
Bone 12 is continuously connected together, and constitutes the Collapsible rack similar to organ shape, convenient for folding and being unfolded.
Preferably, for the effective connection for ensureing between collapsible pull rod and the first keel and the second keel, avoid mutually slipping,
Annular groove can be opened up in first axle 111 and the second axis 121 so that the monaural plate of the end of the first pull rod and the second pull rod and double
It can rotate in otic placode insertion annular groove and around annular groove, while realizing hinged, utilize the first pull rod of annular groove pair and second
Pull rod is limited, and stability when folding and be unfolded operation is improved.And annular groove pair is not set in first axle and the second axis
In the case that first pull rod and the second pull rod are limited, although stability is relatively poor, Collapsible rack can be convenient for.
Shown in Fig. 2 and Fig. 5, roller structure 14, idler wheel are further provided in the end of the second keel 12 of both sides
Structure 14 is located at the bottom of the second keel 12, when integrated pushing Collapsible rack, can be convenient for Collapsible rack by roller structure
It moves integrally；When Collapsible rack one end is confined, at this point, when pushing one end that do not confined of Collapsible rack again, rolling
Under the rolling of wheel construction 14, can rapid folding play Collapsible rack, shown in Fig. 2 and Figure 10, when folding, be equipped with roller structure
14 the second keel rolling is drawn close, and the first keel between the second keel move upwards under the folding of collapsible pull rod
(lower section is limited by basis, and the first keel will not move downward) and carry out the folding of Collapsible rack.Wherein, roller structure
14 further comprise being connected to the end rollers bearing 141 of the second keel 12 and are installed on the rolling of the bottom of the roller support 141
Wheel 142, idler wheel 142 is installed on the bottom of roller support 141 by shaft and idler wheel 142 can be rotated around the shaft, with reality
The rolling of existing roller structure 14.
Closer, be covered with one layer of dustcloth above Collapsible rack, the dustcloth can be used plastic cloth or
The cloth of other flexible materials, the effect of dustcloth are that the airborne dust generated when preventing open-cut foundation ditch enters air, and dustcloth can
By steel wire lashing on the first keel and the second keel, and it should ensure that dustcloth and the first keel, the second keel and both ends
Collapsible pull rod fits closely, and to ensure that Collapsible rack is collapsible, dustcloth can be folded immediately, Collapsible rack exhibition
When opening, dustcloth can be unfolded immediately.First keel 11 and the second keel 12 are the curved rod with certain camber, and dustcloth covers
Covering can make the rainwater on dustcloth trickle to both sides along camber in such first keel and bicarinate top, be convenient for
Rainwater is drained, the compressing to dust guard is caused on dustcloth prevented also from accumulation of rainwater.
Coordinate again shown in Fig. 6~10, the foundation pit dust guard in figure in paraphrase the above embodiment of the present invention is when in use
State (only painted in figure and illustrate part Collapsible rack, in actual use, should ensure that whole Collapsible racks are in exhibition
, can be at the top of completely obscured foundation pit when open state, dustcloth covers all at the top of foundation pit, to reach good anti-airborne dust effect).
As shown, more first keel 11 and the second keel of Duo Gen 12 are across the opposite sides at 10 top of foundation pit, in the present embodiment
In, it is across the both sides of the width direction of foundation pit 10.The top of foundation pit 10 is provided with a circle collar tie beam 100, foundation pit dust guard
It is installed on collar tie beam 100, the roller structure of Collapsible rack two bottom sides is rolled respectively in the phase in the width direction of collar tie beam 100
To both sides, further, along the respective sides of collar tie beam 100, the upper surface of collar tie beam 100 be provided with for roller structure roll in
Race 15 in it.As shown in figure 9, race 15 is made of U-shaped channel steel, when foundation pit is longer, can be spliced by multistage channel steel
It forms.Race 15 is opening up, and in the roller support insertion wheel channel opening of roller structure 14, the bottom of idler wheel protrudes from idler wheel branch
The bottom of seat is simultaneously rolled in wheel trench bottom.The race can be respectively set in the opposite sides of collar tie beam, with simultaneously to the dust-proof dress of foundation pit
The roller structure for setting two side bottoms guides, and roller structure is made to be rolled along race, and guiding foundation pit dust guard is along foundation pit length
Direction is unfolded or folding.When collar tie beam not being set at the top of foundation pit, race can be set up directly at the top of foundation pit；It also can be only in foundation pit
Race is arranged in one side, and race is arranged simultaneously not as good as both sides in stability when can also play the role of guiding at this time and roll, but roll
The case where.
It should be noted that structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating
The bright revealed content of book is not limited to the enforceable limit of the present invention so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences under the effect of present invention can be generated and the purpose that can reach, should all still fall and be obtained in disclosed technology contents
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, technology according to the present invention is real
Any simple modification, equivalent change and modification made by confrontation above example still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of foundation pit dust guard, it is characterised in that：More first keel including being across the opposite sides at the top of foundation pit
With more second keel, first keel and second keel are arranged and alternate in the same direction, the end of first keel
Portion is connected with the bicarinate end by collapsible pull rod, activity at foldable and folding in the middle part of the collapsible pull rod
It is connected to the end of the first keel, the both ends of the collapsible pull rod are articulated with the institute of first keel both sides correspondingly
Bicarinate end is stated, the bicarinate end is further provided with roller structure, first keel and described second
Dustcloth is covered on keel.
2. foundation pit dust guard as described in claim 1, it is characterised in that：The flexible connection is hinged.
3. foundation pit dust guard as described in claim 1, it is characterised in that：The collapsible pull rod includes being rotated around first axle
The first pull rod and the second pull rod, the first end of first pull rod and second pull rod is rotationally connected with the first axle,
The second end of first pull rod and second pull rod is articulated with the bicarinate end of both sides.
4. foundation pit dust guard as claimed in claim 3, it is characterised in that：The first axle is affixed or is formed in described first
The end of keel.
5. foundation pit dust guard as claimed in claim 3, it is characterised in that：The bicarinate end has extended to form
The second end of two axis, first pull rod and second pull rod is formed with the through hole worn for second axis.
6. foundation pit dust guard as described in claim 1, it is characterised in that：The roller structure includes being connected to described second
The end rollers bearing of keel and the idler wheel for being installed on the roller support.
7. foundation pit dust guard as described in claim 1, it is characterised in that：Along an at least side for foundation pit in the foundation pit
Top is equipped with the race rolled for the roller structure.
8. foundation pit dust guard as claimed in claim 7, it is characterised in that：The top of the foundation pit is equipped with collar tie beam, the circle
The opposite sides of beam is respectively equipped with the race.
9. foundation pit dust guard as described in claim 1, it is characterised in that：During first keel and second keel are
The curved rod that portion arches upward to the side far from foundation pit.
10. foundation pit dust guard as described in claim 1, it is characterised in that：The dustcloth is fixed in first keel
On second keel, and the lower surface of the dustcloth fits in first keel and second keel, described anti-
The side of dirt cloth fits in the collapsible pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293584.4A CN108380630B (en) | 2018-03-30 | 2018-03-30 | Foundation pit dustproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293584.4A CN108380630B (en) | 2018-03-30 | 2018-03-30 | Foundation pit dustproof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108380630A true CN108380630A (en) | 2018-08-10 |
| CN108380630B CN108380630B (en) | 2024-03-12 |
Family
ID=63073490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293584.4A Active CN108380630B (en) | 2018-03-30 | 2018-03-30 | Foundation pit dustproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108380630B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552513A (en) * | 2019-08-01 | 2019-12-10 | 中国一冶集团有限公司 | Foundation trench earth and stone square operation dustproof shed and erection method |
| CN114433591A (en) * | 2022-01-29 | 2022-05-06 | 广东韶钢松山股份有限公司 | Turnover folding dust hood |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1371741A (en) * | 1971-09-20 | 1974-10-23 | Bakelite Xylonite Ltd | Transport apparatus |
| FR2722828A1 (en) * | 1994-07-22 | 1996-01-26 | Bator | Folding/sliding door used esp. for industrial buildings |
| CA2396636A1 (en) * | 2000-01-06 | 2001-07-12 | Joannes Stefanus Van't Schip | A rolling aid for use by elderly and disabled people |
| US20030101921A1 (en) * | 2001-12-04 | 2003-06-05 | Elvestad Alf J. | Lightweight collapsible boat |
| US20060162627A1 (en) * | 2005-01-24 | 2006-07-27 | Toby Alger | Table for portable miter saws |
| KR100621841B1 (en) * | 2006-02-13 | 2006-09-19 | 주식회사 대신상역엔지니어링 | A rail trolley |
| US20100022355A1 (en) * | 2008-07-25 | 2010-01-28 | Brian Goldwitz | Foldable trampoline and conversion kit |
| CN102437214A (en) * | 2011-12-20 | 2012-05-02 | 清华大学 | Foldable photovoltaic support structure |
| CN102509739A (en) * | 2011-10-28 | 2012-06-20 | 湖南大学 | Solar battery sailboard unfolding mechanism |
| CN203155542U (en) * | 2013-03-26 | 2013-08-28 | 山东凝易固砂浆科技有限公司 | Dustproof cover for vibrating screen |
| US20140001735A1 (en) * | 2012-06-29 | 2014-01-02 | Westfield Outdoors, Inc. | Collapsible Wagon and Method of Collapsing A Wagon |
| JP2014023431A (en) * | 2012-07-24 | 2014-02-06 | Toto Kogyo Co Ltd | Curtain device |
| CN103742062A (en) * | 2013-12-30 | 2014-04-23 | 黄晓冬 | Integrated box type fireproof blocking device |
| CN103738440A (en) * | 2013-12-20 | 2014-04-23 | 冯贤生 | Folding bicycle luggage box |
| CN104047292A (en) * | 2014-06-06 | 2014-09-17 | 上海建工集团股份有限公司 | Foundation pit micro-deformation control system and method |
| TWM503146U (en) * | 2014-09-23 | 2015-06-21 | Protrend Co Ltd | Foldable storage rack and foldable cart |
| CN204645053U (en) * | 2015-05-12 | 2015-09-16 | 中建城市建设发展有限公司 | A kind of the building foundation pit construction stage use have enough to meet the need drawing dustproof net support |
| CN205975621U (en) * | 2016-08-06 | 2017-02-22 | 浙江祥达建设有限公司 | Building foundation puts with dustproof form |
| CN106984626A (en) * | 2017-03-22 | 2017-07-28 | 贵州大学 | A kind of construction site plant equipment dust guard |
| CN206716696U (en) * | 2017-05-10 | 2017-12-08 | 王文彬 | A kind of dust helmet of mechanical equipment |
| CN208303472U (en) * | 2018-03-30 | 2019-01-01 | 中国建筑第八工程局有限公司 | Foundation pit dust guard |
-
2018
- 2018-03-30 CN CN201810293584.4A patent/CN108380630B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1371741A (en) * | 1971-09-20 | 1974-10-23 | Bakelite Xylonite Ltd | Transport apparatus |
| FR2722828A1 (en) * | 1994-07-22 | 1996-01-26 | Bator | Folding/sliding door used esp. for industrial buildings |
| CA2396636A1 (en) * | 2000-01-06 | 2001-07-12 | Joannes Stefanus Van't Schip | A rolling aid for use by elderly and disabled people |
| US20030101921A1 (en) * | 2001-12-04 | 2003-06-05 | Elvestad Alf J. | Lightweight collapsible boat |
| US20060162627A1 (en) * | 2005-01-24 | 2006-07-27 | Toby Alger | Table for portable miter saws |
| KR100621841B1 (en) * | 2006-02-13 | 2006-09-19 | 주식회사 대신상역엔지니어링 | A rail trolley |
| US20100022355A1 (en) * | 2008-07-25 | 2010-01-28 | Brian Goldwitz | Foldable trampoline and conversion kit |
| CN102509739A (en) * | 2011-10-28 | 2012-06-20 | 湖南大学 | Solar battery sailboard unfolding mechanism |
| CN102437214A (en) * | 2011-12-20 | 2012-05-02 | 清华大学 | Foldable photovoltaic support structure |
| US20140001735A1 (en) * | 2012-06-29 | 2014-01-02 | Westfield Outdoors, Inc. | Collapsible Wagon and Method of Collapsing A Wagon |
| JP2014023431A (en) * | 2012-07-24 | 2014-02-06 | Toto Kogyo Co Ltd | Curtain device |
| CN203155542U (en) * | 2013-03-26 | 2013-08-28 | 山东凝易固砂浆科技有限公司 | Dustproof cover for vibrating screen |
| CN103738440A (en) * | 2013-12-20 | 2014-04-23 | 冯贤生 | Folding bicycle luggage box |
| CN103742062A (en) * | 2013-12-30 | 2014-04-23 | 黄晓冬 | Integrated box type fireproof blocking device |
| CN104047292A (en) * | 2014-06-06 | 2014-09-17 | 上海建工集团股份有限公司 | Foundation pit micro-deformation control system and method |
| TWM503146U (en) * | 2014-09-23 | 2015-06-21 | Protrend Co Ltd | Foldable storage rack and foldable cart |
| CN204645053U (en) * | 2015-05-12 | 2015-09-16 | 中建城市建设发展有限公司 | A kind of the building foundation pit construction stage use have enough to meet the need drawing dustproof net support |
| CN205975621U (en) * | 2016-08-06 | 2017-02-22 | 浙江祥达建设有限公司 | Building foundation puts with dustproof form |
| CN106984626A (en) * | 2017-03-22 | 2017-07-28 | 贵州大学 | A kind of construction site plant equipment dust guard |
| CN206716696U (en) * | 2017-05-10 | 2017-12-08 | 王文彬 | A kind of dust helmet of mechanical equipment |
| CN208303472U (en) * | 2018-03-30 | 2019-01-01 | 中国建筑第八工程局有限公司 | Foundation pit dust guard |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552513A (en) * | 2019-08-01 | 2019-12-10 | 中国一冶集团有限公司 | Foundation trench earth and stone square operation dustproof shed and erection method |
| CN114433591A (en) * | 2022-01-29 | 2022-05-06 | 广东韶钢松山股份有限公司 | Turnover folding dust hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108380630B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208303472U (en) | Foundation pit dust guard | |
| CN108380630A (en) | Foundation pit dust guard | |
| US4271644A (en) | Hall with mobile wall and roof elements | |
| CN206005380U (en) | Casing mechanism and the laminating machine of the casing mechanism is set | |
| CN111911763B (en) | Flexible screen supporting structure and display device | |
| CN108778860A (en) | Drying equipment for motor vehicle and the vehicle-cleaning equipment with drying equipment | |
| CN205476817U (en) | Eyes formula hangar covering or awning on a car, boat, etc. room | |
| CN208517823U (en) | Folding telescopic crosses supporting leg in tunnel Bridge Erector | |
| DE59402657D1 (en) | Bellows as a transitional protection for articulated vehicles | |
| CN215631149U (en) | Rain-proof canopy and rain insensitive device | |
| EP0872289A3 (en) | Cartridge-type rolling stand for a two-high roll pair | |
| CN209353657U (en) | A kind of building engineering operation platform | |
| CN211431457U (en) | Student schoolbag capable of taking shelter from rain urgently | |
| CN207244833U (en) | A kind of flexible balcony | |
| CN206109964U (en) | A middle position correction device for landing stage of walking certainly | |
| JP3142471B2 (en) | Opening / closing mechanism for openable membrane roof | |
| CN108560427A (en) | Folding telescopic crosses supporting leg and its applying step in tunnel Bridge Erector | |
| CN220537833U (en) | Leather hanging and airing device | |
| JP3142475B2 (en) | Opening / closing mechanism for openable membrane roof | |
| ITMI992065A1 (en) | GUIDE MOBILE CORDS AND MOBILE COVER INCLUDING SUCH GUIDE | |
| KR200313886Y1 (en) | A foldable marquee | |
| JP2970506B2 (en) | Retractable membrane roof | |
| JP3257928B2 (en) | Gate door | |
| CN211703711U (en) | Cladding formula folded portion structure and folding travelling basket of folding travelling basket | |
| JP3373314B2 (en) | Openable / closable membrane roof structure and roof opening / closing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |