CN112495081A - Dustproof effectual building foundation ditch dustproof system - Google Patents
Dustproof effectual building foundation ditch dustproof system Download PDFInfo
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- CN112495081A CN112495081A CN202011275657.0A CN202011275657A CN112495081A CN 112495081 A CN112495081 A CN 112495081A CN 202011275657 A CN202011275657 A CN 202011275657A CN 112495081 A CN112495081 A CN 112495081A
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- 239000000428 dust Substances 0.000 claims abstract description 97
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 14
- 101150054854 POU1F1 gene Proteins 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
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- 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
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- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (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)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a building foundation pit dustproof system with a good dustproof effect, which comprises a foundation pit, a dustproof net component and a splicing net; the plurality of dustproof net components are arranged at intervals and cover the upper part of the foundation pit; each dustproof net component comprises a steel wire rope and a dustproof net unit, the steel wire ropes are arranged at intervals, and a plurality of dustproof net units are detachably mounted between any two adjacent steel wire ropes; the splicing net is arranged between any two adjacent dustproof net components, one side of the splicing net in the width direction is detachably connected with a steel wire rope, closest to the splicing net, in one of the dustproof net components, the other side of the splicing net in the width direction is connected with the edge of the foundation pit, and the dustproof net components and the splicing net completely shield the foundation pit. The dust screen is in modular design, is easy to assemble and disassemble, and is provided with the splicing screen, and the dust screen assembly and the splicing screen act together so as to completely shield the foundation pit, so that the full coverage of the foundation pit can be realized, and the dust-proof effect is ensured.
Description
Technical Field
The invention relates to the field of building construction, in particular to a building foundation pit dustproof system with a good dustproof effect.
Background
At present, the national environmental management is carried out, dust emission control in the construction process of the building industry is the key point of the national environmental management, and the dust emission mainly comes from the soil body exposed in the earth excavation operation in the construction process. For the problem, the main management measures adopted by relevant departments are to limit the earthwork operation time period, so that the earthwork construction operation cannot be carried out in the soil sealing period and the dust raising control strict time period, and the construction progress of the foundation pit engineering is seriously influenced.
In order to solve the problem of dust emission in foundation pit construction and strive for the construction time of the foundation pit, a plurality of units have actively explored related technologies, wherein the most practical solution is to erect a dust screen above the foundation pit to seal the foundation pit and operate in the sealed foundation pit, so that the dust emission in the pit is prevented from escaping outwards.
The specific technical scheme is as follows: and processing the base into dust screens with certain widths, wherein the length of each dust screen is equal to the width of the foundation pit, each dust screen is fixed through two steel wire ropes, and a plurality of dust screens are connected into a piece to seal the whole foundation pit. However, this solution has the following drawbacks: firstly, the dustproof web is too long, difficult to replace, large in replacement area and difficult to recycle; secondly, gaps exist between adjacent webs, the sealing is not tight, the dustproof effect is influenced, and the improvement is provided.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a building foundation pit dustproof system with a good dustproof effect.
The technical scheme of the invention is as follows: a building foundation pit dustproof system with good dustproof effect comprises a foundation pit, a dustproof net component and a splicing net; the dust screen assemblies are arranged at intervals and cover the upper part of the foundation pit; each dustproof net component comprises a plurality of steel wire ropes and dustproof net units, the steel wire ropes are arranged at intervals, the dustproof net units are detachably mounted between any two adjacent steel wire ropes, and the dustproof net units are arranged along the length direction of the steel wire ropes; arbitrary adjacent two be equipped with between the dust screen subassembly concatenation net, concatenation net is followed wire rope's length direction extends, one side and one of them of the width direction of concatenation net be closest in the dust screen subassembly the wire rope of concatenation net can dismantle continuously, the width direction's of concatenation net opposite side with the foundation ditch edge links to each other, wherein the dust screen subassembly with concatenation net shelters from completely the foundation ditch.
Further, the dustproof net unit and the splicing net are rectangular.
Furthermore, a plurality of first mounting holes are formed in the dust screen unit, and are arranged at intervals along the circumferential direction of the dust screen unit and close to the edge of the dust screen unit; the dustproof net assembly further comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged between any two adjacent dustproof net units in the length direction of the steel wire rope, and the first connecting piece is respectively connected with first mounting holes in the width direction of the two corresponding dustproof net units; and in the spacing direction of the steel wire ropes, the second connecting piece is arranged between any two adjacent dust screen units, wherein the second connecting piece is respectively connected with the first mounting holes in the length direction of the two corresponding dust screen units and the steel wire ropes between the two dust screen units.
Furthermore, the first connecting piece is a binding belt, and the binding belt is arranged in the first mounting holes in the width direction of the two corresponding dustproof net units in a penetrating mode; and/or the second connecting piece is an annular spring fastener, and the spring fastener penetrates through the first mounting holes in the length direction of the two corresponding dustproof net units and the steel wire rope between the two dustproof net units.
Further, the dustproof net unit has a length of M, and M satisfies the following conditions: m is more than or equal to 20M and less than or equal to 30M; and/or the width of the dustproof net unit is N, wherein N satisfies the following conditions: n is more than or equal to 6m and less than or equal to 9 m.
Further, the width of the splicing net is W, the minimum interval between any two adjacent dustproof net assemblies is H, and H satisfies the following conditions: h is more than or equal to 0.65W and less than or equal to 0.75W.
Furthermore, a second mounting hole is formed in one side of the spliced net in the width direction, a pulling rope is arranged on the other side of the spliced net in the width direction, the second mounting holes are arranged at intervals in the length direction of the spliced net, a third connecting piece is arranged in each second mounting hole, and the third connecting piece is connected with the steel wire rope closest to the spliced net; the foundation ditch edge is equipped with connecting portion, the tractive rope with connecting portion link to each other.
Furthermore, the other side of the width direction of the spliced net is provided with a blocking part, the blocking part extends along the length direction of the spliced part, and the blocking part is positioned above a dust screen assembly close to the blocking part and is abutted against the dust screen assembly.
Further, the plugging part is a polystyrene foam block.
Furthermore, the splicing net is formed by splicing the dustproof net units in sequence.
(1) Compared with the prior art, the invention has the following beneficial effects: the invention improves the dust screen, firstly, the dust screen is modularly designed, a large dust screen is made into small dust screen units which are easy to be processed in a standardized way, and then the small dust screen units are sequentially arranged on the steel wire rope, so that the installation is convenient, the construction efficiency is improved, and the dust screen assembly has the advantages of convenient disassembly and reutilization, when the connected dust screen assemblies are damaged, the damaged screen blocks can be replaced, the replacement range is reduced, and the cost is saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:
FIG. 1 is a schematic view of a building foundation pit dust prevention system of the present invention;
FIG. 2 is a schematic view of a dust screen unit of the present invention;
FIG. 3 is a perspective view of a portion of the construction of the foundation pit dust prevention system of the present invention;
FIG. 4 is a front view of a portion of the construction of the foundation pit dust prevention system of the present invention;
fig. 5 is a top view of a portion of the construction of the foundation pit dust prevention system of the present invention.
Reference numerals:
1. a foundation pit; 2. a wire rope; 3. a dust screen unit; 4. mounting holes; 5. a first connecting member; 6. a second connecting member; 7. splicing the nets; 8. a pulling rope; 9. a sealing part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
A dust-proof system for a construction pit 1 having a good dust-proof effect according to an embodiment of the present invention, which includes a pit 1, a dust-proof net assembly, and a splicing net 7, will be described with reference to fig. 1 to 5.
The dust screen subassembly is a plurality of, and a plurality of dust screen subassemblies interval are arranged and are covered in foundation ditch 1 top. Specifically, in this embodiment, a plurality of dust screen assemblies are arranged at intervals in the left-right direction.
Every dust screen subassembly includes wire rope 2 and dust screen unit 3, and wire rope 2 is a plurality of, and a plurality of wire rope 2 intervals are arranged, and demountable installation has a plurality of dust screen units 3 between two arbitrary adjacent wire rope 2, and a plurality of dust screen units 3 arrange along wire rope 2's length direction.
Particularly, in this implementation, every wire rope 2 extends along the fore-and-aft direction, and a plurality of wire ropes 2 are arranged along left right direction interval, are equipped with dust screen unit 3 between two arbitrary adjacent wire ropes 2, and a plurality of dust screen units 3 are arranged along the fore-and-aft direction in proper order, and dust screen unit 3 here can dismantle with wire rope 2 and link to each other moreover to make things convenient for the dismouting of dust screen unit 3.
As shown in fig. 1 and 3, a splicing net 7 is arranged between any two adjacent dust screen assemblies, the splicing net 7 extends along the length direction (for example, the front-back direction) of the steel wire rope 2, one side (for example, the left side) of the width direction (for example, the left-right direction) of the splicing net 7 is detachably connected with the steel wire rope 2 (for example, the steel wire rope 2 on the rightmost side of the dust screen assembly in the figure) closest to the splicing net 7 in one of the dust screen assemblies, and the other side (for example, the right side) of the width direction of the splicing net 7 is connected with the edge of the foundation pit 1, wherein the dust screen assembly and the splicing net 7 completely shield the foundation pit 1, so that the complete coverage of the foundation pit.
In conclusion, compared with the integral dust screen with large area in the prior art, the dust screen is improved, the dust screen is firstly designed in a modularized way, the large dust screen is made into the small dust screen units 3 which are easy to be processed in a standardized way, and then the small dust screen units 3 are sequentially arranged on the steel wire rope 2, so that the installation is convenient, the construction efficiency is improved, and the dust screen has the advantages of convenient disassembly and reutilization, when the connected dust screen components are damaged, the damaged screen blocks can be replaced, the replacement range is reduced, the cost is saved, in addition, the splicing net 7 is also arranged between the two adjacent dust screen components, the splicing net 7 is also detachably connected with the steel wire rope 2, so that the assembly and the disassembly are easy, and the dust screen components and the splicing net 7 jointly act to completely shield the foundation pit 1, so that the full coverage of the foundation pit 1 can be realized, the dustproof effect is ensured.
In this embodiment, the meshes of the dust screen unit 3 are more than 2000 meshes, and it can be understood that the larger the number of meshes, the denser the dust screen unit is, the better the dust filtering effect is.
In this embodiment, the peripheral edges of the dustproof net unit 3 and the splicing net unit 7 are provided with covered edges, and the covered edges extend to form a ring shape, that is, the arranged covered edges can play a role in protection and prevent the peripheral edges from yarn running, and the covered edges can be soft cloth covered edges or plastic covered edges, and the invention is not limited to this.
In this embodiment, as shown in fig. 1 and 2, the dust screen unit 3 and the splicing screen 7 are each formed in a rectangular shape.
In this embodiment, as shown in fig. 2, the dust screen unit 3 is provided with a plurality of first mounting holes 4, and the plurality of first mounting holes 4 are adjacent to the edge of the dust screen unit 3 and are arranged at intervals along the circumferential direction of the dust screen unit 3; the dustproof net assembly further comprises a first connecting piece 5 and a second connecting piece 6, the first connecting piece 5 is arranged between any two adjacent dustproof net units 3 in the length direction (such as the front-back direction) of the steel wire rope 2, and the first connecting piece 5 is respectively connected with the first mounting holes 4 in the width direction of the two corresponding dustproof net units 3; in the spacing direction (for example, the left-right direction) of the wire rope 2, a second connecting piece 6 is arranged between any two adjacent dust screen units 3, wherein the second connecting piece 6 is respectively connected with the first mounting holes 4 in the length direction of the two corresponding dust screen units 3 and the wire rope 2 between the two dust screen units 3.
In the process of arranging the dustproof net units 3, the short sides of any two adjacent dustproof net units 3 are opposite to the short sides, and the long sides of any two adjacent dustproof net units 3 are opposite to the long sides, and then the dustproof net units are spread until the foundation pit 1 is covered. The installation between the dustproof net units 3 and the steel wire ropes 2 can be realized through the matching of the first connecting piece 5 and the second connecting piece 6, the installation form is simple, and the realization is convenient.
In this embodiment, the distance between the central axes of any two adjacent first mounting holes 4 is L, and L satisfies: l is more than or equal to 0.3m and less than or equal to 0.8m, so that the structural strength of the dustproof net unit 3 can be ensured, and the installation flexibility of the dustproof net unit 3 can be ensured, and preferably, L is 0.5 m.
In this embodiment, as shown in fig. 2, the dust screen unit 3 further includes an annular protective buckle, the protective buckle is embedded in the first mounting hole 4, and the protective buckle can also protect the dust screen sheet, so as to avoid the phenomena of wire running, wire drawing and the like of the dust screen unit 3. Optionally, the protective buckle is a metal piece, such as a stainless steel piece, but of course, the protective buckle may also be a plastic piece, etc.
In this embodiment, the length of the dust screen unit 3 is M, and M satisfies: m is more than or equal to 20M and less than or equal to 30M; and/or the width of the dust screen unit 3 is N, N satisfying: n is more than or equal to 6m and less than or equal to 9 m. Specifically, after the dust screen unit 3 is designed to be rectangular, the size of the dust screen unit 3 needs to be further limited, if the dust screen unit 3 is too small, many dust screen units 3 need to be used in subsequent construction, so that the installation process is increased, the installation process is complicated, and if the dust screen unit 3 is too large, the dust screen unit is inconvenient to process and transport or adjust the position in the installation process, because the inventor finds in practical research, the length M of the dust screen unit 3 is satisfied: m is more than or equal to 20M and less than or equal to 30M, and the width N satisfies the following conditions: when N is more than or equal to 6m and less than or equal to 9m, the processing and the installation are convenient, and the practicability is good.
In this embodiment, the width of the splicing net 7 is W, the minimum interval between any two adjacent dustproof net assemblies is H, and H satisfies: h is more than or equal to 0.65W and less than or equal to 0.75W. When the span of the foundation pit 1 is large, H takes a small value, and when the span is small, H takes a large value.
In this embodiment, as shown in fig. 3 and 5, a second mounting hole 4 is formed in one side (e.g., the left side) in the width direction (e.g., the left-right direction) of the spliced net 7, a pulling rope 8 is formed in the other side (e.g., the right side) in the width direction (e.g., the front-back direction) of the spliced net 7, the second mounting holes 4 are arranged at intervals in the length direction (e.g., the front-back direction) of the spliced net 7, and a third connecting member is arranged in the second mounting hole 4 and connected to the steel wire rope 2 closest to the spliced net 7; the edge of the foundation pit 1 is provided with a connecting part, and the traction rope 8 is connected with the connecting part.
In this embodiment, as shown in fig. 4, a blocking portion 9 is disposed on the other side of the spliced net 7 in the width direction, the blocking portion 9 extends along the length direction (for example, the front-back direction) of the spliced portion, and the blocking portion 9 is located above the dust screen assembly close to the blocking portion 9 and abuts against the dust screen assembly, so that when a gap is generated due to the difference in the sag between the spliced net 7 and the dust screen assembly, the blocking portion 9 can block the gap to prevent dust from escaping from the gap.
In this embodiment, the blocking portion 9 is a polystyrene foam block.
In practical application, the splicing net 7 can be sequentially spliced and manufactured by the dustproof net units 3 and can be independently designed, and for reducing specification types and facilitating construction, the splicing net 7 is suitable to be identical to the dustproof net standard units.
In this embodiment, the first connecting piece 5 is a binding belt, and the binding belt is inserted into the first mounting holes 4 in the width direction of the two corresponding dustproof net units 3; and/or second connecting piece 6 is annular snak link, and the snak link is worn to establish on the first mounting hole 4 of two corresponding dust screen units 3's length direction and is located wire rope 2 between two dust screen units 3, and the third connecting piece also is the snak link, and the snak link here can be detained on second mounting hole 4 and corresponding wire rope 2, specifically can choose corresponding snak link product for use as required, and the repeated description is no longer given here.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A building foundation pit dustproof system with a good dustproof effect is characterized by comprising a foundation pit, a dustproof net component and a splicing net;
the dust screen assemblies are arranged at intervals and cover the upper part of the foundation pit;
each dustproof net component comprises a plurality of steel wire ropes and dustproof net units, the steel wire ropes are arranged at intervals, the dustproof net units are detachably mounted between any two adjacent steel wire ropes, and the dustproof net units are arranged along the length direction of the steel wire ropes;
arbitrary adjacent two be equipped with between the dust screen subassembly concatenation net, concatenation net is followed wire rope's length direction extends, one side and one of them of the width direction of concatenation net be closest in the dust screen subassembly the wire rope of concatenation net can dismantle continuously, the width direction's of concatenation net opposite side with the foundation ditch edge links to each other, wherein the dust screen subassembly with concatenation net shelters from completely the foundation ditch.
2. The dust-proofing system for foundation pit of building of claim 1, wherein said dust-proofing net units and said splicing net are formed in rectangular shape.
3. The building foundation pit dustproof system with good dustproof effect according to claim 2, wherein the dustproof net unit is provided with a plurality of first mounting holes, and the plurality of first mounting holes are arranged at intervals in the circumferential direction of the dustproof net unit and are adjacent to the edge of the dustproof net unit;
the dustproof net assembly further comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged between any two adjacent dustproof net units in the length direction of the steel wire rope, and the first connecting piece is respectively connected with first mounting holes in the width direction of the two corresponding dustproof net units;
and in the spacing direction of the steel wire ropes, the second connecting piece is arranged between any two adjacent dust screen units, wherein the second connecting piece is respectively connected with the first mounting holes in the length direction of the two corresponding dust screen units and the steel wire ropes between the two dust screen units.
4. The building foundation pit dustproof system with good dustproof effect as claimed in claim 3, wherein the first connecting piece is a cable tie, and the cable tie is inserted into the first mounting hole in the width direction of the two corresponding dustproof net units; and/or
The second connecting piece is an annular spring fastener, and the spring fastener penetrates through the corresponding two first mounting holes in the length direction of the dustproof net units and is positioned on the two steel wire ropes between the dustproof net units.
5. The dustproof system for the building foundation pit with good dustproof effect according to claim 2, wherein the dustproof net unit has a length of M, and M satisfies the following conditions: m is more than or equal to 20M and less than or equal to 30M; and/or
The width of the dustproof net unit is N, and N satisfies the following conditions: n is more than or equal to 6m and less than or equal to 9 m.
6. The dustproof system for the building foundation pit with good dustproof effect according to claim 2, wherein the width of the splicing net is W, the minimum interval between any two adjacent dustproof net assemblies is H, and H satisfies the following conditions: h is more than or equal to 0.65W and less than or equal to 0.75W.
7. The building foundation pit dustproof system with good dustproof effect as claimed in claim 1, wherein one side of the splicing net in the width direction is provided with a second mounting hole, the other side of the splicing net in the width direction is provided with a pulling rope,
the second mounting holes are arranged at intervals along the length direction of the spliced net, third connecting pieces are arranged in the second mounting holes, and the third connecting pieces are connected with the steel wire ropes closest to the spliced net;
the foundation ditch edge is equipped with connecting portion, the tractive rope with connecting portion link to each other.
8. The dustproof system for the building foundation pit with good dustproof effect according to claim 7, wherein a blocking portion is arranged on the other side of the spliced portion in the width direction, the blocking portion extends along the length direction of the spliced portion, and the blocking portion is located above a dustproof net assembly close to the blocking portion and is abutted to the dustproof net assembly.
9. The dustproof system for a foundation pit of a building according to claim 7, wherein the plugging portion is a block of polystyrene foam.
10. The dustproof system for the building foundation pit with good dustproof effect according to claim 1, wherein the spliced net is formed by sequentially splicing the dustproof net units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011275657.0A CN112495081B (en) | 2020-11-13 | 2020-11-13 | Building foundation pit dustproof system with good dustproof effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011275657.0A CN112495081B (en) | 2020-11-13 | 2020-11-13 | Building foundation pit dustproof system with good dustproof effect |
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| CN112495081A true CN112495081A (en) | 2021-03-16 |
| CN112495081B CN112495081B (en) | 2023-11-07 |
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