CN113818704A - Foundation pit canopy dustproof system and construction method thereof - Google Patents
Foundation pit canopy dustproof system and construction method thereof Download PDFInfo
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- CN113818704A CN113818704A CN202111186001.6A CN202111186001A CN113818704A CN 113818704 A CN113818704 A CN 113818704A CN 202111186001 A CN202111186001 A CN 202111186001A CN 113818704 A CN113818704 A CN 113818704A
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- canopy
- steel rope
- curtain
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/242—Safety or protective measures preventing damage to building parts or finishing work during construction for temporarily covering the whole worksite, e.g. building, trench
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
Abstract
The invention discloses a foundation pit canopy dust prevention system and a construction method thereof, and the foundation pit canopy dust prevention system comprises a dust prevention canopy net, a canopy support assembly and a canopy traction moving assembly, wherein the canopy support assembly is arranged above a building foundation pit, the dust prevention canopy net is positioned on the canopy support assembly, the canopy traction moving assembly is connected with the dust prevention canopy net, and the canopy traction moving assembly controls the dust prevention canopy net to move, expand and store on the canopy support assembly. The invention can achieve the dustproof effect under the current condition of on-site earthwork construction, can carry out installation and construction under the on-site condition, has simple transmission mode, and is convenient for personnel to maintain because the transmission motor and the transmission shaft are positioned outside the foundation pit; the steel wire rope and the pulley block are lighter in weight, and the increased load is lower; the construction difficulty is relatively low, the method can adapt to foundation pit covering systems of various shapes, the aim of environmental protection is achieved, and the method has popularization and application values.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a foundation pit canopy dustproof system and a construction method thereof.
Background
With the continuous deepening of the development of the economic society of China, the status and the function of ecological civilization construction are increasingly highlighted. As a construction project, the building stone is one of foundation stones for national development, and the building stone is more suitable for responding to the calls of parties and countries and actively participates in the construction of social ecological civilization. Dust raising treatment in the foundation pit earthwork construction stage is always the key point of on-site environment protection work of construction projects; with the development of times, the technology is advanced, the original raise dust prevention mode is adopted, the purpose of reducing raise dust on site through the manual mode of covering the dense mesh safety net can cause the waste of manpower and the great waste of the dustproof net, and part of the dustproof net can enter the filling along with the construction of soil body to pollute the environment. At the present stage, a new dust prevention control mode at the foundation pit earthwork construction stage needs to be provided so as to meet the requirements of the existing ecological environment control indexes and meet the requirements of field construction plans in the aspects of environmental protection, economic benefits and construction intellectualization.
Disclosure of Invention
The invention aims to provide a foundation pit canopy dustproof system and a construction method thereof.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
the invention comprises a dustproof canopy screen, a canopy support component and a canopy traction moving component, wherein the canopy support component is arranged above a building foundation pit, the dustproof canopy screen is positioned on the canopy support component, the canopy traction moving component is connected with the dustproof canopy screen, and the canopy traction moving component controls the dustproof canopy screen to move, expand and store on the canopy support component.
Further, the canopy supporting assembly comprises a plurality of canopy device supporting columns, a canopy hoisting pulley block, a canopy net fixing cross rod, a canopy net fixing band, a canopy hoisting steel rope and a steel rope fixing assembly, the canopy net fixing cross rods are uniformly distributed on the upper end face of the dustproof canopy net, the dustproof canopy net is fixedly connected with the canopy net fixing cross rod through a plurality of canopy net fixing bands, the canopy net fixing cross rods are fixed at the lower ends of the canopy hoisting pulley blocks, the canopy hoisting pulley blocks are positioned on the canopy hoisting steel ropes and can slide, the two ends of the canopy hoisting steel rope are respectively fixed at the upper ends of the two canopy device supporting columns through the steel rope fixing assemblies, and the two canopy device supporting columns are respectively positioned at the two ends above the building foundation pit, wherein the canopy hoisting pulley block positioned at one end of the canopy hoisting steel rope is fixedly connected with the canopy hoisting steel rope, and the canopy hoisting pulley block positioned at the other end of the canopy hoisting steel rope is connected with the canopy traction moving assembly.
Further, the steel rope fixing assembly is composed of a steel rope pulling and connecting reversing pulley, a flower basket adjusting bolt base and a flower basket adjusting bolt, the steel rope pulling and connecting reversing pulley is fixedly arranged at the upper end of the backdrop device supporting stand column, the flower basket adjusting bolt base is fixedly arranged at the middle section of the backdrop device supporting stand column, the lower end of the flower basket adjusting bolt is fixedly connected with the flower basket adjusting bolt base, and a backdrop hoisting steel rope passes through the steel rope pulling and connecting reversing pulley and then is fixedly connected with the upper end of the flower basket adjusting bolt.
Further, the awning traction moving assembly consists of an awning retraction driving motor, a driving rolling rod transmission chain, a traction steel rope transmission wheel, a traction steel rope driving rolling rod and an awning retraction traction steel rope, the awning retraction driving motor is fixedly arranged on one side of a supporting upright post of the awning device, the traction steel rope driving rolling rod is arranged at the upper end of the supporting upright post of the awning device and can rotate, the traction steel rope transmission wheel is fixedly sleeved on the traction steel rope driving rolling rod, a driving rotating shaft of the awning retraction driving motor is connected with the traction steel rope driving rolling rod through the driving rolling rod transmission chain, the awning device supporting upright post positioned on the other side of the foundation pit is provided with the traction steel rope transmission wheel and the traction steel rope driving rolling rod, the awning retraction traction steel rope is encircled between the two opposite traction transmission wheels, the canopy hoisting pulley block positioned at the other end of the canopy hoisting steel rope is fixedly connected with the canopy retracting traction steel rope.
Specifically, the canopy hoisting pulley block is an upper and lower double-pulley mechanism, an upper pulley of the canopy hoisting pulley block is in sliding connection with the canopy take-up and pay-off traction steel rope, and a lower pulley of the canopy hoisting pulley block is in sliding connection with the canopy hoisting steel rope.
Preferably, the traction steel rope driving roller rod is connected with the upper end of the backdrop device supporting upright post through a rectangular tube cushion block, the lower end of the rectangular tube cushion block is fixedly connected with the upper end of the backdrop device supporting upright post, and the traction steel rope driving roller rod is rotatably connected with the upper end of the rectangular tube cushion block.
The construction method of the foundation pit canopy dustproof system comprises the following steps:
s1: according to the actual terrain, field measurement payoff personnel determine the control direction of a foundation pit awning dustproof system, the awning device supporting upright column at the driving shaft side of an awning retracting and releasing driving motor is arranged according to the awning amplitude plane, and the position of an awning steel rope pull-connection reversing pulley at the side is drawn on the awning device supporting upright column; setting a laser total station at the position of the steel rope pull-connection reversing pulley at the opposite side through the position of the steel rope pull-connection reversing pulley of the determined receiving and releasing shaft, throwing a vertical line with an angle, dotting on a supporting upright post of the opposite side sky curtain device, and taking the dotting as the installation position of the steel rope pull-connection reversing pulley at the opposite side;
s2: cutting a canopy hoisting steel rope according to the required length, and finishing the pull connection on a steel rope pull connection reversing pulley through a traction rope;
s3: a traction steel rope driving wheel is preassembled before a traction steel rope driving rolling rod is installed, the traction steel rope driving rolling rod is installed at the upper end of a backdrop device supporting upright post through a rectangular tube cushion block, the traction steel rope driving rolling rod is rotatably connected with the rectangular tube cushion block through a bearing, a backdrop retraction driving motor and a driving rolling rod driving chain are installed on the backdrop device supporting upright post, the traction steel rope driving rolling rod is driven to rotate through the backdrop retraction driving motor, the traction steel rope driving wheel on the traction steel rope driving rolling rod pulls the backdrop retraction traction steel rope, and a backdrop hoisting pulley block is driven to move;
s4: tightening and straightening the dustproof canopy screen by using the canopy screen fixing cross rod, firmly binding by using a canopy screen fixing binding belt, and mounting the dustproof canopy screen on a canopy hoisting pulley block after finishing the connection and binding of each dustproof canopy screen;
s5: and a limiter is arranged on the awning retracting traction steel rope, a general electric control system is arranged, each awning traction moving assembly is connected in parallel, and a general control switch is arranged.
The invention has the beneficial effects that:
the invention is a foundation ditch canopy dust-proof system and its construction method, compared with prior art, the invention can reach the dustproof effect under the present situation condition of the construction of the on-the-spot earthwork, and can mount and construct under the on-the-spot condition, the drive mode is simple, drive motor and drive shaft locate outside foundation ditch, personnel maintain the convenience; the steel wire rope and the pulley block are lighter in weight, and the increased load is lower; the construction difficulty is relatively low, the method can adapt to foundation pit covering systems of various shapes, the aim of environmental protection is achieved, and the method has popularization and application values.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the dustproof canopy screen of the present invention;
fig. 4 is a schematic view of the mounting structure of the present invention.
In the figure: the sky screen device comprises a sky screen device supporting upright post 1, a sky screen retraction driving motor 2, a driving roller transmission chain 3, a traction steel rope transmission wheel 4, a traction steel rope driving roller 5, a sky screen retraction traction steel rope 6, a rectangular tube cushion block 7, a sky screen hoisting steel rope 8, a steel rope pull-connection reversing pulley 9, a basket adjusting bolt base 10, a basket adjusting bolt 11, a sky screen hoisting pulley block 12, a dustproof sky screen net 13, a sky screen net fixing cross rod 14 and a sky screen net fixing binding band 15.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1-4: the invention comprises a dustproof canopy screen 13, a canopy supporting component and a canopy traction moving component, wherein the canopy supporting component is arranged above a building foundation pit, the dustproof canopy screen 13 is positioned on the canopy supporting component, the canopy traction moving component is connected with the dustproof canopy screen 13, and the canopy traction moving component controls the dustproof canopy screen 13 to move, expand and store on the canopy supporting component. So as to achieve the effect of opening and closing the upper covering structure. The dustproof spraying system can be arranged on the canopy supporting component at the gap between every two canopy supporting components, and construction dust in the foundation pit is restrained through the spraying water curtain.
Further, the canopy supporting assembly comprises a canopy device supporting upright post 1, a canopy hoisting pulley block 12, a canopy net fixing cross rod 14, a canopy net fixing band 15, a canopy hoisting steel rope 8 and a steel rope fixing assembly, the canopy net fixing cross rod 14 is multiple, the multiple canopy net fixing cross rods 14 are uniformly distributed on the upper end surface of the dustproof canopy net 13, the dustproof canopy net 13 is fixedly connected with the canopy net fixing cross rod 14 through the multiple canopy net fixing bands 15, the multiple canopy net fixing cross rods 14 are fixed at the lower ends of the canopy hoisting pulley blocks 12, the multiple canopy hoisting pulley blocks 12 are positioned on the canopy hoisting steel rope 8 and can slide, the two ends of the canopy hoisting steel rope 8 are fixed at the upper ends of the two canopy device supporting upright posts 1 through the steel rope fixing assemblies respectively, two canopy device support post 1 is located the top both ends of building foundation ditch respectively, wherein is located canopy hoist and mount steel cable 8 one end fixed connection between canopy hoist and mount assembly pulley 12 and the canopy hoist and mount steel cable 8, is located the canopy hoist and mount steel cable 8 other end canopy hoist and mount assembly pulley 12 with the canopy pulls the removal subassembly and connects.
Further, the steel rope fixing assembly is composed of a steel rope pulling and connecting reversing pulley 9, a flower basket adjusting bolt base 10 and a flower basket adjusting bolt 11, the steel rope pulling and connecting reversing pulley 9 is fixedly arranged at the upper end of the backdrop device supporting upright post 1, the flower basket adjusting bolt base 10 is fixedly arranged at the middle section of the backdrop device supporting upright post 1, the lower end of the flower basket adjusting bolt 11 is fixedly connected with the flower basket adjusting bolt base 10, and a backdrop hoisting steel rope 8 passes through the steel rope pulling and connecting reversing pulley 9 and then is fixedly connected with the upper end of the flower basket adjusting bolt 11.
Further, the awning traction moving assembly consists of an awning retraction driving motor 2, a driving rolling rod driving chain 3, a traction steel rope driving wheel 4, a traction steel rope driving rolling rod 5 and an awning retraction traction steel rope 6, the awning retraction driving motor 2 is fixedly arranged on one side of an awning device supporting upright post 1, the traction steel rope driving rolling rod 5 is arranged at the upper end of the awning device supporting upright post 1 and can rotate, the traction steel rope driving wheel 4 is fixedly sleeved on the traction steel rope driving rolling rod 5, a driving rotating shaft of the awning retraction driving motor 2 is connected with the traction steel rope driving rolling rod 5 through the driving rolling rod driving chain 3, the awning device supporting upright post 1 positioned on the other side of the foundation pit is provided with the traction steel rope driving wheel 4 and the traction steel rope driving rolling rod 5, the awning traction steel rope 6 is encircled between the two opposite traction steel rope driving wheels 4, the canopy hoisting pulley block 12 positioned at the other end of the canopy hoisting steel rope 8 is fixedly connected with the canopy retracting traction steel rope 6.
Specifically, the canopy hoisting pulley block 12 is an upper and lower double-pulley mechanism, an upper pulley of the canopy hoisting pulley block 12 is in sliding connection with the canopy take-up and pay-off traction steel rope 6, and a lower pulley of the canopy hoisting pulley block 12 is in sliding connection with the canopy hoisting steel rope 8.
Preferably, the traction steel rope driving roller rod 5 is connected with the upper end of the backdrop device supporting upright post 1 through a rectangular tube cushion block 7, the lower end of the rectangular tube cushion block 7 is fixedly connected with the upper end of the backdrop device supporting upright post 1, and the traction steel rope driving roller rod 5 is rotatably connected with the upper end of the rectangular tube cushion block 7.
The working principle of the invention is as follows:
when the invention is implemented, the backdrop device supporting columns 1 are arranged at two sides of a building foundation pit, a backdrop retraction driving motor 2, a driving roller rod driving chain 3, a traction steel rope driving wheel 4, a traction steel rope driving roller rod 5, a rectangular tube cushion block 7, a steel rope pull-in reversing pulley 9, a basket adjusting bolt base 10 and a basket adjusting bolt 11 are arranged on the backdrop device supporting column 1 at one side, the traction steel rope driving wheel 4, the traction steel rope driving roller rod 5, a steel rope pull-in reversing pulley 9, a basket adjusting bolt base 10 and a basket adjusting bolt 11 are arranged on the backdrop device supporting column 1 at the other side, a backdrop retraction traction steel rope 6 and a backdrop lifting steel rope 8 are arranged between the backdrop device supporting columns 1 at two sides, a backdrop retraction steel rope 6 and a backdrop lifting steel rope 8 are connected with a backdrop lifting pulley block 12, a backdrop lifting pulley block 12 is connected with a dustproof backdrop cross rod 13 through a backdrop fixing cross rod 14, when the awning needs to be unfolded, the awning retraction driving motor 2 is started, the awning retraction driving motor 2 drives the traction steel rope to drive the rolling rod 5 to rotate through the driving rolling rod transmission chain 3, the traction steel rope transmission wheel 4 on the traction steel rope driving rolling rod 5 drives the awning retraction traction steel rope 6 to transmit, the awning hoisting pulley block 12 positioned at the end part is fixed on the awning retraction traction steel rope 6 and the awning hoisting steel rope 8, the driving of the awning retraction traction steel rope 6 enables the awning hoisting pulley block 12 to move on the awning retraction traction steel rope 6 and the awning hoisting steel rope 8, so that the dustproof awning net 13 hoisted at the lower end of the awning hoisting pulley block 12 is unfolded, and when the awning needs to be unfolded, the dustproof awning net 13 can be stored by the reverse awning retraction driving motor 2.
Example (b):
the construction sequence is as follows:
pulley block installation → installation of pull-connected steel wire rope beam → motor installation → installation of open-close movable pulley block system → installation of dustproof dense mesh net → equipment connection → system debugging → system commissioning
Firstly, installation of pulley block
The backdrop hoisting steel rope 8 of the upper backdrop structure is connected with the backdrop device supporting upright post 1 through the steel rope pulling and connecting reversing pulley 9 on the backdrop device supporting upright post 1. The steel rope on the backdrop device supporting upright post 1 is connected with the reversing pulley 9 and the backdrop device supporting upright post 1 in a welded way. During on-site construction, according to a backdrop system plane arrangement diagram, an on-site measurement despooling personnel determines the control direction of a foundation pit backdrop dustproof system, the backdrop folding and unfolding driving motor 2 is arranged on a backdrop device supporting upright 1 at the driving shaft side according to a backdrop amplitude plane, and the position of a steel rope pull-connection reversing pulley 9 at the local side is drawn on the backdrop device supporting upright 1.
Because the foundation pit is irregular polygon, the problem of the receiving and the drawing of the dustproof canopy screen 13 is considered, the canopy hoisting steel rope 8 is perpendicular to the driving shaft, so that the position of the steel rope pulling and receiving reversing pulley 9 on the opposite side is connected with the position of the reversing pulley 9 through the steel rope with the determined receiving and drawing shaft, a laser total station is arranged, a 90-degree vertical line is projected and measured, and a point is formed on the supporting upright column 1 of the canopy device on the opposite side to serve as the mounting position of the steel rope pulling and receiving reversing pulley 9 on the opposite side.
② installation of steel wire rope
And after the steel rope of the backdrop device supporting upright post 1 is installed by the pull-connection reversing pulley 9, installing a backdrop hoisting steel rope 8. The awning hoisting steel rope 8 adopts a phi 8 steel rope. Because the shape of the foundation pit on site is irregular, the length of the canopy hoisting steel rope 8 is different every span, the canopy hoisting steel rope 8 on site is directly purchased for the whole coil of steel rope, and the steel rope is cut on site. When installing the canopy hoist and mount steel cable 8, measure each canopy hoist and mount steel cable 8 length through the total powerstation earlier, reserve sufficient joint length afterwards, cut. After the sky screen hoisting steel rope 8 is cut, the steel rope is connected with the reversing pulley 9 in a pulling mode through the traction rope.
After the backdrop hoisting steel rope 8 is connected in a pulling way, one end of the backdrop hoisting steel rope is fixed by a buckle on site, and then the backdrop hoisting steel rope 8 is tightened by a ratchet wheel rope tightener and is connected with a basket adjusting bolt base 10 through a basket adjusting bolt 11 of M20. After the installation of the dustproof canopy net 13 is completed, the dustproof canopy net is tightened again by using the basket adjusting bolt 11.
Mounting of retraction system
The method comprises the steps that a traction steel rope driving rolling rod 5 is installed at the upper end of a backdrop device supporting upright post 1 through a rectangular tube cushion block 7, a traction steel rope driving wheel 4 is preassembled before the traction steel rope driving rolling rod 5 is installed, the traction steel rope driving rolling rod 5 is in rotating connection with the rectangular tube cushion block 7 through a bearing, a backdrop folding and unfolding driving motor 2 and a driving rolling rod driving chain 3 are installed on the backdrop device supporting upright post 1, the traction steel rope driving rolling rod 5 is driven to rotate through the backdrop folding and unfolding driving motor 2, the traction steel rope driving wheel 4 on the traction steel rope driving rolling rod 5 pulls a backdrop folding and unfolding traction steel rope 6, and a backdrop hoisting pulley block 12 is driven to move so as to achieve the purpose of folding and unfolding a dustproof backdrop net 13.
Fourthly, mounting of dense mesh net
Considering that the single width is large, the dustproof canopy screen 13 adopts a phi 20 galvanized steel pipe as a canopy screen fixing cross rod 14 to be tightened, and is connected with a canopy hoisting steel rope 8 through a canopy hoisting pulley block 12. When the dustproof canopy screen 13 is installed, the dustproof canopy screen 13 is firstly tightened and straightened by the canopy screen fixing cross rod 14 and firmly bound by the canopy screen fixing binding belt 15, the distance between the two canopy screen fixing cross rods 14 is 4m, and the dustproof canopy screen 13 and the canopy screen fixing cross rod 14 are bound as shown in figure 3; the length of each dustproof canopy screen 13 is determined according to the length of the current canopy hoisting steel rope 8, and after connection and binding of each dustproof canopy screen 13 are completed, the dustproof canopy screen 13 is installed on the canopy hoisting pulley block 12.
Fifthly, debugging and running of the system
After the foundation pit canopy dustproof system is installed, the system is debugged and operated, and a limiter is installed on the canopy retractable traction steel rope 6 according to the trial operation condition, so that mechanical accidents are avoided, and the stability and reliability of the system are ensured. And meanwhile, installing an overall electric control system, connecting each awning traction moving assembly in parallel and installing a master control switch.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a foundation ditch canopy of heavens dustproof system which characterized in that: including dustproof canopy curtain net (13), canopy curtain supporting component and canopy curtain traction movement subassembly, canopy curtain supporting component sets up in the top of building foundation ditch, dustproof canopy curtain net (13) are located on the canopy curtain supporting component, canopy curtain traction movement subassembly with dustproof canopy curtain net (13) are connected, canopy curtain traction movement subassembly control dustproof canopy curtain net (13) are in it expandes and accomodates to move on the canopy curtain supporting component.
2. The foundation pit canopy dust control system of claim 1, wherein: the sky-curtain supporting assembly comprises a sky-curtain device supporting stand column (1), a sky-curtain hoisting pulley block (12), a sky-curtain net fixing cross rod (14), a sky-curtain net fixing bandage (15), a sky-curtain hoisting steel rope (8) and a steel rope fixing assembly, the sky-curtain net fixing cross rod (14) is multiple, the sky-curtain net fixing cross rods (14) are uniformly distributed on the upper end face of the dustproof sky-curtain net (13), the dustproof sky-curtain net (13) and the sky-curtain net fixing cross rods (14) are fixedly connected through the plurality of sky-curtain net fixing bandages (15), the multiple sky-curtain net fixing cross rods (14) are fixed at the lower ends of the plurality of sky-curtain hoisting pulley blocks (12), the plurality of sky-curtain hoisting pulley blocks (12) are positioned on the sky-curtain hoisting steel rope (8) and can slide, the two ends of the sky-curtain hoisting steel rope (8) are respectively fixed at the upper ends of the two sky-curtain device supporting stand columns (1) through the steel rope fixing assemblies, two canopy device support post (1) is located the top both ends of building foundation ditch respectively, wherein is located canopy hoist and mount steel cable (8) one end fixed connection between canopy hoist and mount assembly pulley (12) and the canopy hoist and mount steel cable (8), is located the canopy hoist and mount steel cable (8) other end canopy hoist and mount assembly pulley (12) with the canopy pulls the removal subassembly and connects.
3. The foundation pit canopy dust control system of claim 2, wherein: the steel rope fixing assembly is composed of a steel rope drawing connection reversing pulley (9), a flower basket adjusting bolt base (10) and a flower basket adjusting bolt (11), the steel rope drawing connection reversing pulley (9) is fixedly arranged at the upper end of the backdrop device supporting upright post (1), the flower basket adjusting bolt base (10) is fixedly arranged at the middle section of the backdrop device supporting upright post (1), the lower end of the flower basket adjusting bolt (11) is fixedly connected with the flower basket adjusting bolt base (10), and the backdrop hoisting steel rope (8) passes through the steel rope drawing connection reversing pulley (9) and then is fixedly connected with the upper end of the flower basket adjusting bolt (11).
4. The foundation pit canopy dust control system of claim 2, wherein: the awning traction moving assembly consists of an awning retraction driving motor (2), a driving rolling rod driving chain (3), a traction steel rope driving wheel (4), a traction steel rope driving rolling rod (5) and an awning retraction traction steel rope (6), the awning retraction driving motor (2) is fixedly arranged on one side of an awning device supporting upright post (1), the traction steel rope driving rolling rod (5) is arranged at the upper end of the awning device supporting upright post (1) and can rotate, the traction steel rope driving wheel (4) is fixedly sleeved on the traction steel rope driving rolling rod (5), a driving rotating shaft of the awning retraction driving motor (2) is connected with the traction steel rope driving rolling rod (5) through the driving rolling rod driving chain (3), the awning device supporting upright post (1) positioned on the other side of a foundation pit is provided with the traction steel rope driving wheel (4) and the traction steel rope driving rolling rod (5), the awning retracting traction steel rope (6) surrounds between the two opposite traction steel rope transmission wheels (4), and the awning hoisting pulley block (12) positioned at the other end of the awning hoisting steel rope (8) is fixedly connected with the awning retracting traction steel rope (6).
5. The foundation pit canopy dust control system of claim 4, wherein: the sky curtain hoisting pulley block (12) is an upper and lower double-pulley mechanism, the upper pulley of the sky curtain hoisting pulley block (12) is in sliding connection with the sky curtain retractable traction steel rope (6), and the lower pulley of the sky curtain hoisting pulley block (12) is in sliding connection with the sky curtain hoisting steel rope (8).
6. The foundation pit canopy dust control system of claim 4, wherein: the drawing steel rope driving rolling rod (5) is connected with the upper end of the backdrop device supporting upright post (1) through a rectangular tube cushion block (7), the lower end of the rectangular tube cushion block (7) is fixedly connected with the upper end of the backdrop device supporting upright post (1), and the drawing steel rope driving rolling rod (5) is rotatably connected with the upper end of the rectangular tube cushion block (7).
7. A method of constructing a dust control system for a canopy of a foundation pit as claimed in claim 1, comprising the steps of:
s1: according to the actual terrain, field measurement payoff personnel determine the control direction of a foundation pit awning dustproof system, the awning device supporting upright columns (1) on the driving shaft sides of awning retracting and releasing driving motors (2) are arranged according to awning framing planes, and the positions of steel cable pull-connection reversing pulleys (9) on the side of the awning device supporting upright columns (1) are drawn; the position of the steel rope pull-connection reversing pulley (9) on the opposite side passes through the position of the steel rope pull-connection reversing pulley (9) of the determined receiving and releasing shaft, a laser total station is arranged, a 90-degree vertical line is projected and measured, a point is formed on the supporting upright post (1) of the opposite side awning device, and the laser total station is used as the installation position of the steel rope pull-connection reversing pulley (9) on the opposite side;
s2: cutting a canopy hoisting steel rope (8) according to the required length, and finishing the pull connection on a steel rope pull connection reversing pulley (9) through a traction rope;
s3: the device comprises a traction steel rope driving roller rod (5), a traction steel rope driving wheel (4) is preassembled before the traction steel rope driving roller rod (5) is installed, the traction steel rope driving roller rod (5) is installed at the upper end of a backdrop device supporting upright post (1) through a rectangular tube cushion block (7), the traction steel rope driving roller rod (5) is in rotating connection with the rectangular tube cushion block (7) through a bearing, a backdrop retraction driving motor (2) and a driving roller rod driving chain (3) are installed on the backdrop device supporting upright post (1), the traction steel rope driving roller rod (5) is driven to rotate through the backdrop retraction driving motor (2), the traction steel rope driving wheel (4) on the traction steel rope driving roller rod (5) pulls a backdrop retraction traction steel rope (6) to drive a backdrop hoisting pulley block (12) to move;
s4: tightening and straightening the dustproof canopy screen (13) by using a canopy screen fixing cross rod (14), firmly binding by using a canopy screen fixing binding belt (15), and installing the dustproof canopy screen (13) on a canopy lifting pulley block (12) after connecting and binding each dustproof canopy screen (13);
s5: and a limiter is arranged on the awning retracting traction steel rope (6), and a general electric control system is arranged at the same time, and each awning traction moving assembly is connected in parallel and is provided with a general control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111186001.6A CN113818704A (en) | 2021-10-12 | 2021-10-12 | Foundation pit canopy dustproof system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111186001.6A CN113818704A (en) | 2021-10-12 | 2021-10-12 | Foundation pit canopy dustproof system and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876276A (en) * | 2022-03-29 | 2022-08-09 | 中国铁建重工集团股份有限公司 | Awning working device |
| CN115990605A (en) * | 2023-03-24 | 2023-04-21 | 苏州方正工程技术开发检测有限公司 | Environment-friendly and dustproof flexible self-filtering membrane cloth system for engineering earthwork and construction method of system |
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2021
- 2021-10-12 CN CN202111186001.6A patent/CN113818704A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876276A (en) * | 2022-03-29 | 2022-08-09 | 中国铁建重工集团股份有限公司 | Awning working device |
| CN114876276B (en) * | 2022-03-29 | 2023-11-14 | 中国铁建重工集团股份有限公司 | Backdrop working device |
| CN115990605A (en) * | 2023-03-24 | 2023-04-21 | 苏州方正工程技术开发检测有限公司 | Environment-friendly and dustproof flexible self-filtering membrane cloth system for engineering earthwork and construction method of system |
| CN115990605B (en) * | 2023-03-24 | 2023-05-23 | 苏州方正工程技术开发检测有限公司 | Environment-friendly and dustproof flexible self-filtering membrane cloth system for engineering earthwork and construction method of system |
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