CN114308976A - Special-shaped foundation pit dustproof canopy and installation and use method thereof - Google Patents
Special-shaped foundation pit dustproof canopy and installation and use method thereof Download PDFInfo
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- CN114308976A CN114308976A CN202111501978.2A CN202111501978A CN114308976A CN 114308976 A CN114308976 A CN 114308976A CN 202111501978 A CN202111501978 A CN 202111501978A CN 114308976 A CN114308976 A CN 114308976A
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- 230000001012 protector Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 92
- 239000010959 steel Substances 0.000 claims description 92
- 238000010276 construction Methods 0.000 claims description 14
- 206010066054 Dysmorphism Diseases 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
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- 229920003023 plastic Polymers 0.000 claims description 4
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- 238000003466 welding Methods 0.000 claims description 3
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- 241000269793 Cryothenia peninsulae Species 0.000 description 11
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- 230000004888 barrier function Effects 0.000 description 1
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Abstract
The invention discloses a special-shaped foundation pit dustproof canopy and an installation and use method thereof, wherein the special-shaped foundation pit dustproof canopy comprises a dustproof device arranged in a foundation pit, and a fixing device is arranged on a concrete structure at the periphery of the foundation pit; the sliding rail is arranged on the fixing device along the inner periphery of the foundation pit, and the sliding device is arranged on the sliding rail in a sliding mode; the traction devices are respectively arranged on the sliding devices and are used for traction and suspending the dustproof device; the traction ropes are respectively connected with the sliding devices and are used for moving the sliding devices; the edge protector is arranged above the concrete structure and is used for connecting and hanging the traction rope; the special-shaped foundation pit dustproof canopy has the advantages that the dust control technology of the special-shaped foundation pit and the irregular opening is expanded, the applicability is wider, and the operability is stronger; the invention has simple structure and clear principle, is not limited by fields and environments, can be repeatedly used, can effectively save cost, improves safety and protects the environment.
Description
Technical Field
The invention relates to the technical field of foundation pit protection, in particular to a special-shaped foundation pit dustproof canopy and an installation and use method thereof.
Background
In recent years, ecological protection is increasingly important, civilized construction also becomes a basic project requirement, and dust control becomes a serious difficulty of the civilized construction. A large amount of dust can be generated in exposed places, construction vehicles, earthwork operation, construction disturbance and the like in the project construction process, the environmental protection dust control is very severe, and multiple dust prevention measures are required. Therefore, the method has wide practical value and important significance for the research and development of the construction site dust control.
The dustproof awning of the foundation pit is a more popular dustproof measure for deep foundation pit projects in recent years, and has the functions of preventing dust, reducing noise, shading sun, cooling, illuminating and the like, but the foundation pit applying the dustproof awning at present at home and abroad is mostly a regular foundation pit such as a bar foundation pit and a square foundation pit, so that the dustproof awning is convenient to set, and the degree of automation is high. But it has very big place condition restriction, and is not suitable for projects such as some dysmorphism foundation pits, irregular hole, and the commonality is not strong. Therefore, the applicability of the current dustproof canopy is limited.
For example, Chinese utility model patent (publication number: CN211596474U) discloses a deep foundation pit construction dust keeper in 2020, including the dust screen, still including the expansion device, the expansion device include first spout, second spout and with first, second spout complex multiunit pulley, multiunit pulley correspond respectively and slide and set up on first and second spout. The utility model discloses a setting through the pulley can carry out the sliding adjustment to the dust screen, but this kind of slip only is applicable to the foundation ditch of rule, and the dust screen itself does not possess better ability of receiving and releasing moreover, and is relatively poor to the cover ability of dysmorphism foundation ditch.
Disclosure of Invention
The invention aims to provide a special-shaped foundation pit dustproof canopy and an installation and use method thereof, aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a dustproof canopy of dysmorphism foundation ditch, includes the dust keeper of setting in the foundation ditch, still includes:
the fixing devices are arranged on the concrete structure around the foundation pit;
the sliding rails are arranged on the fixing device along the inner periphery of the foundation pit;
the sliding devices are arranged on the sliding tracks in a sliding mode;
the traction devices are respectively arranged on the sliding devices, the traction devices and the sliding devices are both arranged towards the dustproof devices, and the traction devices are used for drawing and suspending the dustproof devices;
the traction ropes are respectively connected with the sliding devices and are used for moving the sliding devices;
and the plurality of edge protectors are arranged above the concrete structure and are used for connecting and hanging the traction ropes.
This dustproof canopy of dysmorphism foundation ditch passes through draw gear with slider's interact force makes dust keeper can stretch out and draw back and remove according to the foundation ditch shape, and the whole pithead of self-adaptation cover no matter how the homoenergetic of dysmorphism condition can guarantee that dust keeper is effectual hangs in the pot hole top. The mobility of the traction device is convenient for the retraction and release management of the dustproof device, and the vertical operation of a foundation pit and an opening part is convenient.
The invention expands the dust raising treatment technology of the irregular foundation pit and the irregular opening, and has wider applicability and stronger operability compared with the prior automatic retractable dustproof canopy of the regular foundation pit; the invention has simple structure and clear principle, is not limited by fields and environments, can be repeatedly used, can effectively save cost, improves safety and protects the environment.
The fixing device is arranged in a concrete structure at the pithead, so that the sliding rail can be conveniently arranged along the periphery of the special-shaped pithead, and the sliding device can independently move on the sliding rail, so that the traction device can be adjusted according to the actual shape, and the dustproof device can stretch out and draw back according to the shape of the pithead, thereby covering the whole pithead; the traction rope can play a role in adjustment, the sliding device can be moved by pulling the traction rope, and the traction rope can be fixed on the limb protection to play a role in fixation after being adjusted in place; the edge protection is used for connecting and fixing the traction rope on one hand, and has the function of a guard rail on the other hand, so that protection is formed around the upper part of the foundation pit.
Further, the fixing device comprises embedded angle steel embedded in the concrete structure, and a transverse baffle is arranged on one side of the embedded angle steel; the sliding rail is arranged above the embedded angle steel and is a slotted rectangular pipe, a notch of the slotted rectangular pipe faces towards the dustproof device, and the notch end of the slotted rectangular pipe is abutted to the transverse baffle.
The embedded angle steel can be firmly fixed in an embedded mode, the construction difficulty of later-stage setting of the embedded angle steel is reduced, and the transverse baffle plays a role in transverse limiting, so that the transverse stability of the sliding rail is kept; the slotted rectangular tube is used as the sliding track, so that the slotted rectangular tube is convenient to manufacture and low in cost.
Furthermore, the transverse baffle is perpendicular to the embedded angle steel and fixed on one side of the end of the embedded angle steel through a plurality of bolt assemblies, and the connecting strength can be guaranteed and the position of the transverse baffle can be adjusted by adopting a mode of screwing a plurality of groups of bolts; the bottom of the slotted rectangular pipe is welded on the embedded angle steel, the height of the transverse baffle extending upwards is not more than the height of the bottom edge of the notch, so that the transverse baffle is prevented from shielding the notch, and the stress of the sliding track can be dispersed to the maximum extent.
Further, slider includes the ball stud, the head setting of ball stud is in the orbital orbit cavity of slip, the body of rod of ball stud passes orbital notch of slip is connected with U type support through a plurality of ball stud nuts, it is connected with the spring disc to rotate between the U type support, the cover is equipped with the spiral spring on the spring disc, the end connection of spiral spring draw gear.
The head of the ball stud can just move in the slotted rectangular tube, and the U-shaped bracket connected with the other end of the ball stud is connected with a steel wire rope through the volute spiral spring; when the ball stud moves, the U-shaped support can move along with the ball stud, so that the position of the spring disc is adjusted, the volute spiral spring extends out or is wound, and the steel wire rope can be controlled. The connection mode of the ball stud is adopted, so that the method is simple and convenient, does not need electric control, and avoids pulling and building wires near the foundation pit.
Furthermore, a pair of lengthened bolts are connected to a pair of side walls of the U-shaped support, a cylinder for accommodating the volute spiral spring is arranged in the middle of the spring disc, the volute spiral spring comprises a spring main body, a spring inner hook and a spring outer hole, the spring main body is installed in the cylinder, the spring inner hook is arranged at the inner end part of the spring main body and is hooked on the pair of lengthened bolts, the other end of the spring main body extends out of the cylinder, the spring outer hole is arranged at the end part of the spring main body, and the spring outer hole is used for being connected with the traction device.
By adopting the structure, the spiral spring can be wound in the cylinder, the extending part is connected with the steel wire rope, and the steel wire rope can be wound on the outer periphery of the cylinder.
Furthermore, a pair of extension bolts are arranged in an antiparallel manner and fixed with the U-shaped bracket through a plurality of extension bolt nuts respectively, the periphery of the cylinder is provided with an opening for the spiral spring to penetrate out, the circumferential inner side of the opening is provided with a pair of limiting bulges, and the end part of the spiral spring is provided with a limiting bend.
The arrangement of the pair of the lengthened bolts can lock the volute spiral spring, so that the spring inner hook of the volute spiral spring cannot rotate due to external force. The limiting bulge is arranged at the opening, so that the limiting bending part can be limited, and the outer end part of the volute spiral spring is prevented from being also collected into the cylinder.
Furthermore, the traction device comprises a steel wire rope and a chuck lock catch, the steel wire rope is used for penetrating through the dustproof device, and two ends of the steel wire rope are respectively connected with the two opposite sliding devices and are fixed through the chuck lock catch. The spiral spring is under the tension of the steel wire rope when being positioned on the long side of the special-shaped foundation pit, and the steel wire rope tension releasing coil is wound on the spring disc when the spiral spring is positioned on the short side of the special-shaped foundation pit, so that the effective length of the steel wire rope changes along with the shape change of the foundation pit.
Furthermore, dust keeper is dense mesh safety net or plastics color stripe cloth, dust keeper is equipped with the banding all around, be equipped with the latch closure on the banding, the latch closure is used for wearing to establish draw gear's wire rope. The seal and the ring buckle are arranged to facilitate connection of the steel wire rope.
When the dense mesh safety net is adopted, the weight is light, the net is easy to fold and unfold, the strength is high, the light is not shielded, the dustproof effect is good, and the falling from the high altitude can be prevented to a certain extent; when the plastic color strip cloth is adopted, the dustproof effect is good, the sun-shading effect is strong, the rain-shielding capability is high, and falling objects are prevented to a certain extent. The dustproof device is not locked and fixed with the steel wire rope, and the dustproof device is prevented from being drawn into the sliding device along with the extension and contraction of the steel wire rope.
Furthermore, the edge protection comprises a plurality of detachable upright posts arranged on the concrete structure, a guardrail net is arranged between every two adjacent upright posts, and each upright post is provided with a hook; one end of the traction rope is hung on the hook, and the other end of the traction rope is connected with the ball stud of the sliding device.
The haulage rope is used for artifical traction slider to make it can follow the slip track and remove, and the manual operation of being convenient for reduces electric tool's use, need not worry that wind blows the rain and shines.
Further, an installation and use method of the special-shaped foundation pit dustproof canopy comprises the following steps:
(1) preparing the fixing device which comprises a plurality of embedded angle steels, bolt assemblies and transverse baffles, embedding the embedded angle steels at equal intervals along the inner periphery of the special-shaped foundation pit during the construction of the concrete structure, and vertically connecting the transverse baffles to the side walls of the outer ends of the embedded angle steels through the bolt assemblies respectively;
(2) preparing the sliding track, forming a notch on the side wall of a hollow rectangular steel pipe to form a slotted rectangular pipe, placing the slotted rectangular pipe on a plurality of embedded angle steels, enabling the side wall with the notch to abut against the transverse baffle, and welding and fixing the slotted rectangular pipe and the embedded angle steels after adjustment;
(3) installing the sliding device on the sliding rail, wherein the sliding device comprises a ball stud and a U-shaped bracket; a spring disc with a volute spiral spring is sleeved in the U-shaped support in advance through an elongated bolt, and a rod body part of the ball stud is connected with the U-shaped support through a plurality of ball stud nuts to complete the sliding device; sleeving the head of the ball stud into the slotted rectangular tube from the inlet of the slot so that the rod body part between the ball stud and the U-shaped bracket slides on the slot;
(4) connecting the steel wire ropes of the traction device with the dustproof device, enabling two ends of each steel wire rope to extend out of the dustproof device, and connecting two ends of each steel wire rope with opposite volute springs through chuck latches respectively;
(5) installing the traction rope, connecting one end of the traction rope with the sliding device, and hanging the other end of the traction rope on the upright post of the adjacent edge protection through a hook;
through the haulage rope adjustment slider is in the slip orbit is gone up to move, it is right dust keeper receive and releases the management, receive when volute spiral spring is located special-shaped foundation ditch long side the wire rope pulling force makes wire rope stretches out, when volute spiral spring is located special-shaped foundation ditch minor face the wire rope pulling force release and coil on the spring disc.
The steps have no strict sequence relation in the actual installation process, and can be finely adjusted according to actual construction conditions so as to reach the optimal construction state.
Compared with the prior art, the invention has the beneficial effects that: 1. this dustproof canopy of dysmorphism foundation ditch passes through draw gear with slider's interact force makes dust keeper can stretch out and draw back and remove according to the foundation ditch shape, and the whole pithead of self-adaptation cover no matter how the homoenergetic of dysmorphism condition can guarantee that dust keeper is effectual hangs in the pot hole top. The mobility of the traction device is convenient for the retraction and release management of the dustproof device, and the vertical operation of a foundation pit and an opening part is convenient; 2. the invention expands the dust raising treatment technology of the irregular foundation pit and the irregular opening, and has wider applicability and stronger operability compared with the prior automatic retractable dustproof canopy of the regular foundation pit; 3. the invention has simple structure and clear principle, is not limited by fields and environments, can be repeatedly used, can effectively save cost, improves safety and protects the environment; 4. the traction rope is used for adjusting the sliding device to move on the sliding track, the dustproof device is managed to be retracted, the volute spiral spring is pulled by the steel wire rope when being positioned on the long side of the special-shaped foundation pit and enables the steel wire rope to extend out, and the steel wire rope is released from the tension and coiled on the spring disc when the volute spiral spring is positioned on the short side of the special-shaped foundation pit; the whole operation process can be carried out manually, and is simple and easy to implement.
Drawings
FIG. 1 is a schematic view of the overall structure of a special-shaped foundation pit dustproof canopy of the invention;
FIG. 2 is a schematic view of a partially enlarged structure of a fixing device, a sliding rail and a sliding device of a special-shaped foundation pit dustproof canopy of the invention;
FIG. 3 is a schematic side view of the fixing device, the sliding rail and the sliding device of the special-shaped foundation pit dustproof canopy of the invention;
FIG. 4 is a schematic structural diagram of a fixing device of a special-shaped foundation pit dustproof canopy of the invention;
FIG. 5 is a schematic top view of the sliding device of the dustproof canopy of the irregular foundation pit according to the present invention;
FIG. 6 is a schematic perspective view of a sliding device of a dustproof canopy of a special-shaped foundation pit according to the present invention;
FIG. 7 is a schematic structural view of a scroll spring connection of the dustproof canopy of the irregular foundation pit according to the present invention;
in the figure: 1. a fixing device; 101. embedding angle steel in advance; 102. a bolt assembly; 103. a transverse baffle; 2. a sliding track; 201. slotting a rectangular pipe; 202. a notch; 3. a sliding device; 301. a ball stud; 302. a ball stud nut; 303. a U-shaped bracket; 304. lengthening the bolt; 305. lengthening a bolt and a nut; 306. a spring disc; 307. a volute spiral spring; 308. a cylinder; 309. the spring is internally hooked; 310. a spring outer bore; 311. opening a hole; 312. a limiting bulge; 313. limiting and bending; 4. a traction device; 401. a wire rope; 402. locking the chuck; 5. a dust-proof device; 6. a hauling rope; 7. edge protection; 701. a column; 702. a barrier net; 8. a concrete structure.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 7, a dustproof canopy of a special-shaped foundation pit comprises a dustproof device 5 arranged in the foundation pit, and further comprises:
the fixing devices 1 are arranged on a concrete structure 8 around the foundation pit;
the sliding rails 2 are arranged on the fixing device 1 along the inner periphery of the foundation pit;
the sliding devices 3 are arranged on the sliding rail 2 in a sliding mode;
the traction devices 4 are respectively installed on the sliding devices 3, the traction devices 4 and the sliding devices 3 are both arranged towards the dustproof device 5, and the traction devices 4 are used for drawing and suspending the dustproof device 5;
the traction ropes 6 are respectively connected with the sliding devices 3 and are used for moving the sliding devices 3;
and the temporary edge protectors 7 are arranged above the concrete structure 8 and are used for connecting and hanging the traction ropes 6.
This dustproof canopy of dysmorphism foundation ditch passes through draw gear 4 with slider 3's interact force makes dust keeper 5 can stretch out and draw back and remove according to the foundation ditch shape, and the whole pithead of self-adaptation cover no matter how the dysmorphism condition homoenergetic guarantees that dust keeper 5 is effectual to be hung in the pot hole top. The mobility of the traction device 4 is convenient for the retraction management of the dustproof device 5, and the vertical operation of a foundation pit and an opening part is convenient.
The invention expands the dust raising treatment technology of the irregular foundation pit and the irregular opening, and has wider applicability and stronger operability compared with the prior automatic retractable dustproof canopy of the regular foundation pit; the invention has simple structure and clear principle, is not limited by fields and environments, can be repeatedly used, can effectively save cost, improves safety and protects the environment.
The fixing device 1 is arranged in a concrete structure 8 at the pithead, so that the sliding rail 2 is conveniently arranged along the periphery of the irregular pithead, the sliding device 3 can independently move on the sliding rail 2, the traction device 4 can be adjusted according to the actual shape, and the dustproof device 5 can stretch out and draw back according to the shape of the pithead so as to cover the whole pithead; the traction rope 6 plays a role in adjustment, the sliding device 3 can be moved by pulling the traction rope 6, and the traction rope 6 can be fixed on the limb protection 7 to play a role in fixing after being adjusted in place; the edge protection 7 is used for connecting and fixing the traction rope on one hand, and has the function of a guard rail on the other hand, so that protection is formed around the upper part of the foundation pit.
Further, the fixing device 1 comprises pre-buried angle steel 101 pre-buried in the concrete structure 8, and a transverse baffle 103 is arranged on the vertical side wall of the pre-buried angle steel 101; the sliding rail 2 is arranged above the embedded angle steel 101, the sliding rail 2 is a slotted rectangular pipe 201, a notch 202 of the slotted rectangular pipe 201 faces the dustproof device 5, and the notch end of the slotted rectangular pipe 201 is abutted to the transverse baffle 103.
The embedded angle steel 101 can be firmly fixed in an embedded mode, the construction difficulty of the embedded angle steel 101 in the later period is reduced, and the transverse baffle 103 plays a role in transverse limiting, so that the transverse stability of the sliding rail 2 is kept; the slotted rectangular tube 201 is used as a sliding track, so that the slotted rectangular tube is convenient to manufacture and low in cost.
The fixing device of the track is firmer and more stable by being embedded in the concrete structure, and the transverse baffle plate 103 adopts the angle steel with the same specification as the embedded angle steel 101. In this embodiment, the contact portions of the embedded angle steel 101 and the transverse baffle 103 are respectively provided with an avoiding hole, the bolt assembly 102 penetrates through the avoiding hole of the embedded angle steel 101 and the avoiding hole of the transverse baffle 103, the bolt head of the bolt assembly abuts against the transverse baffle 103, and the nut abuts against the embedded angle steel 101, so that the transverse baffle 103 is fixed on the embedded angle steel 101. And the threaded connection is adopted, so that the assembly and disassembly are rapid and the operation is easy. The bolt assemblies 102 are uniformly distributed along the contact parts of the embedded angle steels 101 and the transverse baffle 103.
Further, the transverse baffle 103 is perpendicular to the embedded angle steel 101, the transverse baffle 103 is fixed on one side of the end of the embedded angle steel 101 through a plurality of bolt assemblies 102, and the connection strength can be guaranteed and the position of the transverse baffle can be adjusted by adopting a multi-group bolt screwing mode; the bottom of the slotted rectangular pipe 201 is welded on the embedded angle steel 101, the height of the transverse baffle plate 103 extending upwards is not more than the height of the bottom edge of the slot 202, the transverse baffle plate 103 is prevented from shielding the slot 202, and the stress of the sliding track 2 can be dispersed to the greatest extent.
Further, the sliding device 3 includes a ball stud 301, a head of the ball stud 301 is disposed in the track cavity of the sliding track 2, a rod body of the ball stud 301 passes through the notch 202 of the sliding track 2 and is connected with a U-shaped bracket 303 through a plurality of ball stud nuts 302, a spring disc 306 is rotatably connected between the U-shaped brackets 303, a volute spring 307 is sleeved in the spring disc 306, and an end of the volute spring 307 is connected with the traction device 4.
The head of the ball stud 301 can just move in the slotted rectangular pipe 201, and the U-shaped bracket 303 connected with the other end of the ball stud 301 is connected with a steel wire rope through the spiral spring 307; when the ball stud 301 moves, the U-shaped bracket 303 can move along with the ball stud, so that the position of the spring disc 306 is adjusted, the spiral spring 307 is extended or wound, and a steel wire rope can be controlled. The connection mode of the ball stud 301 is adopted, so that the method is simple and convenient, does not need electric control, and avoids pulling and building wires near the foundation pit.
The diameter of the head of the ball stud 301 is larger than the width of the notch 202, and the diameter of the rod of the ball stud 301 is smaller than the width of the notch 202, so that the ball stud 301 is clamped in the sliding rail 2 and can only move along the arrangement direction of the sliding rail 2. In this embodiment, U type support 303 open end middle part is equipped with the first hole of dodging, two support arm tip of U type support 303 are equipped with the second, three, four, five hole of dodging, the body of rod of ball stud 301 runs through the first hole of dodging of U type support 303, the first nut of ball stud nut offsets with U type support 303, the second nut of ball stud nut offsets with first nut. Use two nuts fastening stability better, first nut plays locking effect to U type support 303, and the second nut plays the anticreep effect to first nut.
Further, a pair of extension bolts 304 is connected to a pair of side walls of the U-shaped bracket 303, a cylinder 308 for accommodating the spiral spring 307 is disposed in the middle of the spring disc 306, the spiral spring 307 includes a spring main body, a spring inner hook 309 and a spring outer hole 310, the spring main body is installed in the cylinder 308, the spring inner hook 309 is disposed at the inner end of the spring main body and hooks the pair of extension bolts 304, the other end of the spring main body extends out of the cylinder 308 and is disposed at the end of the spring outer hole 310, and the spring outer hole 310 is used for connecting a steel wire rope of the traction device 4.
In this way, the spiral spring 307 can be wound around the cylinder 308, the protruding portion can be connected to the wire rope 401, and the wire rope 401 can be wound around the outer circumference of the cylinder 308.
In this embodiment, spring disc 306 is arranged between U-shaped support 303, and spring disc 306 axle center hole is dodged the hole with U-shaped support 303's second, third, fourth, five and is dodged the hole and is aligned, and is preferred, and two are dodged hole center interval should not be too big on the U-shaped support 303 support arm, and two are dodged hole outer fringe maximum distance on U-shaped support 303 support arm and are not more than spring disc 306 axle center hole diameter, and the extension bolt 304 of being convenient for runs through spring disc 306 axle center hole, and two extension bolts 304 of being convenient for press from both sides the interior hook of volute spiral spring 307 spring.
Further, the pair of elongated bolts 304 are arranged in an antiparallel manner and fixed to the U-shaped bracket 303 through a plurality of elongated bolt nuts 305, respectively, an opening hole 311 through which the spiral spring 307 passes is formed in the outer periphery of the cylinder 308, a pair of limiting protrusions 312 are formed on the circumferential inner side of the opening hole 311, and a limiting bend 313 is formed at the end of the spiral spring 307.
The pair of the extension bolts 304 is provided to lock the spiral spring 307, so that the spring hook 309 of the spiral spring 307 is not rotated by an external force. A limiting protrusion 312 is disposed at the opening 311 to limit the limiting bend 313, so as to prevent the outer end of the spiral spring 307 from being also received in the cylinder 308.
Further, the traction device 4 includes a steel wire rope 401 and a collet lock 402, the steel wire rope 401 is used for passing through the dust-proof device 5, and two ends of the steel wire rope 401 are respectively connected with the two opposite sliding devices 3 and fixed by the collet lock 402. The spiral spring 307 is pulled by the steel wire rope when being positioned on the long side of the special-shaped foundation pit, and the steel wire rope tension is released and coiled on the spring disc 306 when the spiral spring 307 is positioned on the short side of the special-shaped foundation pit, so that the effective length of the steel wire rope 401 is changed along with the change of the shape of the foundation pit.
Further, dust keeper 5 is close mesh safety net, be equipped with the banding around dust keeper 5, be equipped with the latch closure on the banding, the latch closure is used for wearing to establish draw gear's wire rope 401. The seal and the ring buckle are arranged to facilitate connection of the steel wire rope.
When the dense mesh safety net is adopted, the weight is light, the net is easy to fold and unfold, the strength is high, the light is not shielded, the dustproof effect is good, and the falling from the high altitude can be prevented to a certain extent; when the plastic color strip cloth is adopted, the dustproof effect is good, the sun-shading effect is strong, the rain-shielding capability is high, and falling objects are prevented to a certain extent. The dustproof device 5 is not locked and fixed with the steel wire rope 401, and the dustproof device 5 is prevented from being rolled into the sliding device along with the rolling of the steel wire rope 401.
Further, the edge protection 7 comprises a plurality of detachable columns 701 arranged on the concrete structure 8, a guardrail net 702 is arranged between the adjacent columns 701, and each column 701 is provided with a hook; one end of the traction rope 6 is hung on the hook, and the other end of the traction rope 6 is connected with the ball stud 301 of the sliding device.
The hauling rope 6 is used for manually hauling the sliding device to enable the sliding device to move along the sliding track, so that manual operation is facilitated, the use of electric tools is reduced, and the worry that parts are blown by wind and rain is avoided.
Example two:
the embodiment provides an installation and use method of the dustproof awning in the first embodiment.
A mounting and using method of a special-shaped foundation pit dustproof canopy comprises the following steps:
(1) preparing the fixing device 1, which comprises a plurality of embedded angle steels 101, bolt assemblies 102 and transverse baffles 103, embedding the embedded angle steels 101 at equal intervals along the inner periphery of the special-shaped foundation pit during the construction of the concrete structure 8, and vertically connecting the transverse baffles 103 to the outer end side walls of the embedded angle steels 101 through the bolt assemblies 102;
(2) preparing the sliding rail 2, forming a notch 202 on the side wall of a hollow rectangular steel pipe to form a slotted rectangular pipe 201, placing the slotted rectangular pipe 201 on a plurality of embedded angle steels 101, enabling the side wall with the notch 202 to abut against the transverse baffle 103, and welding and fixing the slotted rectangular pipe 201 and the embedded angle steels 101 after adjustment;
(3) mounting the sliding device 3 on the sliding rail 2, wherein the sliding device 3 comprises a ball stud 301 and a U-shaped bracket 303; a spring disc 306 with a spiral spring 307 is sleeved and mounted in the U-shaped bracket 303 through an extension bolt 304 in advance, and then a rod body part of the ball stud 301 is connected with the U-shaped bracket 303 through a plurality of ball stud nuts 302 to complete the assembly of the sliding device 3; then the head of the ball stud 301 is sleeved into the slotted rectangular pipe 201 from the inlet of the slot 202, so that the rod body part between the ball stud 301 and the U-shaped bracket 303 slides on the slot 202;
(4) connecting the steel wire ropes 401 of the traction device 4 with the dustproof device 5, enabling two ends of each steel wire rope 401 to extend out of the dustproof device 5, and respectively connecting two ends of each steel wire rope 401 with scroll springs 307 which are oppositely arranged in a foundation pit and slidably assembled through chuck locks 402;
(5) installing the traction rope 6, connecting one end of the traction rope 6 with the rod body part of the ball stud 301 of the sliding device 3, and hanging the other end of the traction rope on the upright column 701 of the adjacent edge protection 7 through a hook;
the sliding device 3 is adjusted to move on the sliding track 2 through the traction rope 6, and the dust-proof device 5 is managed to be stored; when the spiral spring 307 is positioned on the long side of the special-shaped foundation pit, the steel wire rope 401 is pulled by the steel wire rope 401 and stretched and tightened, and when the spiral spring 307 is positioned on the short side of the special-shaped foundation pit, the steel wire rope 401 is released in tension and tightly wound on the spring disc 306 under the action of the spring force, so that the dustproof device 5 is controlled to be retracted and released.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a dustproof canopy of dysmorphism foundation ditch, is including setting up the dust keeper in the foundation ditch, its characterized in that still includes:
the fixing devices are arranged on the concrete structure around the foundation pit;
the sliding rails are arranged on the fixing device along the inner periphery of the foundation pit;
the sliding devices are arranged on the sliding tracks in a sliding mode;
the traction devices are respectively arranged on the sliding devices, the traction devices and the sliding devices are both arranged towards the dustproof devices, and the traction devices are used for drawing and suspending the dustproof devices;
the traction ropes are respectively connected with the sliding devices and are used for moving the sliding devices;
and the plurality of edge protectors are arranged above the concrete structure and are used for connecting and hanging the traction ropes.
2. The special-shaped foundation pit dustproof canopy curtain as claimed in claim 1, wherein the fixing device comprises embedded angle steel embedded in the concrete structure, and a transverse baffle is arranged on one side of the embedded angle steel; the sliding rail is arranged above the embedded angle steel and is a slotted rectangular pipe, a notch of the slotted rectangular pipe faces towards the dustproof device, and the notch end of the slotted rectangular pipe is abutted to the transverse baffle.
3. The special-shaped foundation pit dustproof canopy curtain as claimed in claim 2, wherein the transverse baffle is arranged perpendicular to the embedded angle steel, and the transverse baffle is fixed on one side of the end part of the embedded angle steel through a plurality of bolt assemblies; the bottom of the slotted rectangular pipe is welded on the embedded angle steel, and the height of the transverse baffle extending upwards is not more than the height of the bottom edge of the slot opening.
4. The irregular foundation pit dustproof canopy according to claim 1, wherein the sliding device comprises a ball stud, the head of the ball stud is arranged in the track cavity of the sliding track, the rod body of the ball stud penetrates through the notch of the sliding track and is connected with a U-shaped support through a plurality of ball stud nuts, a spring disc is rotatably connected between the U-shaped supports, a volute spring is sleeved on the spring disc, and the end of the volute spring is connected with the traction device.
5. The irregular foundation pit dustproof canopy curtain as claimed in claim 4, wherein a pair of elongated bolts are connected to a pair of side walls of the U-shaped bracket, a cylinder for accommodating the spiral spring is arranged in the middle of the spring disc, the spiral spring comprises a spring body, a spring inner hook and a spring outer hole, the spring body is installed in the cylinder, the spring inner hook is arranged at the inner end of the spring body and hooks the pair of elongated bolts, the other end of the spring body extends out of the cylinder and is provided with the spring outer hole at the end, and the spring outer hole is used for connecting the traction device.
6. The special-shaped foundation pit dustproof canopy curtain as claimed in claim 5, wherein a pair of the extension bolts are arranged in an anti-parallel manner and fixed with the U-shaped bracket through a plurality of extension bolt nuts respectively, an opening through which the volute spring penetrates is formed in the outer periphery of the cylinder, a pair of limiting protrusions are arranged on the circumferential inner side of the opening, and a limiting bend is arranged at the end part of the volute spring.
7. The special-shaped foundation pit dustproof canopy according to claim 1, wherein the traction device comprises a steel wire rope and a chuck lock, the steel wire rope penetrates through the dustproof device, and two ends of the steel wire rope are respectively connected with the two opposite sliding devices and fixed through the chuck lock.
8. The special-shaped foundation pit dustproof canopy curtain as claimed in claim 1, wherein the dustproof device is a dense mesh safety net or plastic color strip cloth, an edge seal is arranged around the dustproof device, and a ring buckle is arranged on the edge seal and used for penetrating through a steel wire rope of the traction device.
9. The special-shaped foundation pit dustproof canopy curtain as claimed in claim 1, wherein the edge protection comprises a plurality of detachable columns arranged on the concrete structure, a guardrail net is arranged between adjacent columns, and each column is provided with a hook; one end of the traction rope is hung on the hook, and the other end of the traction rope is connected with the ball stud of the sliding device.
10. The method for installing and using the special-shaped foundation pit dustproof canopy according to any one of claims 1 to 9, characterized by comprising the following steps:
(1) preparing the fixing device which comprises a plurality of embedded angle steels, bolt assemblies and transverse baffles, embedding the embedded angle steels at equal intervals along the inner periphery of the special-shaped foundation pit during the construction of the concrete structure, and vertically connecting the transverse baffles to the side walls of the outer ends of the embedded angle steels through the bolt assemblies respectively;
(2) preparing the sliding track, forming a notch on the side wall of a hollow rectangular steel pipe to form a slotted rectangular pipe, placing the slotted rectangular pipe on a plurality of embedded angle steels, enabling the side wall with the notch to abut against the transverse baffle, and welding and fixing the slotted rectangular pipe and the embedded angle steels after adjustment;
(3) installing the sliding device on the sliding rail, wherein the sliding device comprises a ball stud and a U-shaped bracket; a spring disc with a volute spiral spring is sleeved in the U-shaped support in advance through an elongated bolt, and a rod body part of the ball stud is connected with the U-shaped support through a plurality of ball stud nuts to complete the sliding device; sleeving the head of the ball stud into the slotted rectangular tube from the inlet of the slot so that the rod body part between the ball stud and the U-shaped bracket slides on the slot;
(4) connecting the steel wire ropes of the traction device with the dustproof device, enabling two ends of each steel wire rope to extend out of the dustproof device, and connecting two ends of each steel wire rope with opposite volute springs through chuck latches respectively;
(5) installing the traction rope, connecting one end of the traction rope with the sliding device, and hanging the other end of the traction rope on the upright post of the adjacent edge protection through a hook;
through the haulage rope adjustment slider is in the slip orbit is gone up to move, it is right dust keeper receive and releases the management, receive when volute spiral spring is located special-shaped foundation ditch long side the wire rope pulling force makes wire rope stretches out, when volute spiral spring is located special-shaped foundation ditch minor face the wire rope pulling force release and coil on the spring disc.
Priority Applications (1)
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| CN202111501978.2A CN114308976A (en) | 2021-12-09 | 2021-12-09 | Special-shaped foundation pit dustproof canopy and installation and use method thereof |
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| CN202111501978.2A CN114308976A (en) | 2021-12-09 | 2021-12-09 | Special-shaped foundation pit dustproof canopy and installation and use method thereof |
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| CN202111501978.2A Pending CN114308976A (en) | 2021-12-09 | 2021-12-09 | Special-shaped foundation pit dustproof canopy and installation and use method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201073A (en) * | 2023-03-15 | 2023-06-02 | 山东省水利工程建设监理有限公司 | Water conservancy facility piping safety processing device |
| CN117717846A (en) * | 2024-01-08 | 2024-03-19 | 中建三局集团有限公司 | Air convection type intelligent dustproof noise reduction awning system suitable for complex surrounding environment |
Citations (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413638A (en) * | 1972-06-02 | 1975-11-12 | Entreprises Soc Gle | Method of constructing a tank in the ground |
| AU2744292A (en) * | 1991-10-29 | 1993-05-06 | William Robert Burnett | Shelter apparatus |
| EP0810328A2 (en) * | 1996-05-31 | 1997-12-03 | Emunds & Staudinger GmbH | Abutment for a strut used in trench sheeting |
| CA2299090A1 (en) * | 2000-02-22 | 2001-08-22 | Epi Environmental Products Inc. | Method and apparatus for covering landfill |
| US20060175019A1 (en) * | 2005-02-05 | 2006-08-10 | Martin Rewak | Adjustable canopy |
| CN101091036A (en) * | 2004-12-21 | 2007-12-19 | D·卡特勒 | Moveable cover or awning |
| WO2008025538A1 (en) * | 2006-08-29 | 2008-03-06 | Hochschule Bremen | Antifouling coating |
| CN203201445U (en) * | 2013-02-06 | 2013-09-18 | 上海正见门窗科技有限公司 | Rail-mounted specially-shaped sun-shading roller shutter |
| JP2014029064A (en) * | 2012-07-31 | 2014-02-13 | Masahiro Abe | Slope frame construction method |
| CN205153370U (en) * | 2015-11-25 | 2016-04-13 | 吕波 | Awning |
| CN105544891A (en) * | 2015-12-28 | 2016-05-04 | 山东华信塑胶股份有限公司 | Specially shaped canopy sun-shading structure and working method thereof |
| CN205907807U (en) * | 2016-08-06 | 2017-01-25 | 杭州双成遮阳制品有限公司 | Side tension system's special -shaped canopy of heavens covering or awning on a car, boat, etc |
| CN206174604U (en) * | 2016-11-18 | 2017-05-17 | 湖州山牛野营用品有限公司 | Tent of easily accomodating and carrying |
| CN108086327A (en) * | 2018-01-19 | 2018-05-29 | 浙江省建建设集团有限公司 | A kind of special-shaped construction method of deep foundation ditch of adjacent subway tunnel |
| CN208251790U (en) * | 2018-05-18 | 2018-12-18 | 高友柏 | The movable awning that can be shunk automatically |
| 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 |
| CN109594848A (en) * | 2019-01-18 | 2019-04-09 | 北京蓝天未来科技有限公司 | A kind of large span awning device |
| CN110087453A (en) * | 2016-12-20 | 2019-08-02 | 3M创新有限公司 | Condensate manages manifold and system |
| CN210032691U (en) * | 2019-03-14 | 2020-02-07 | 中建二局第一建筑工程有限公司 | Dustproof structure for construction site |
| CN211368732U (en) * | 2019-10-28 | 2020-08-28 | 潘雅丽 | Foundation ditch supporting construction for hydraulic engineering |
| CN211472569U (en) * | 2019-12-31 | 2020-09-11 | 郑州一建集团有限公司 | Subway station foundation ditch earthwork excavation is with portable dust keeper of full coverage |
| CN211596474U (en) * | 2019-12-31 | 2020-09-29 | 中铁十局集团第二工程有限公司 | Deep foundation pit construction dust keeper |
| CN211714780U (en) * | 2020-02-14 | 2020-10-20 | 福建富元建设工程有限公司 | Foundation pit support structure |
| CN112227821A (en) * | 2020-10-11 | 2021-01-15 | 徐桐 | Intelligent sealing garage |
| CN112282502A (en) * | 2020-11-01 | 2021-01-29 | 郑会清 | Building foundation pit safety device |
| CN212773580U (en) * | 2020-03-18 | 2021-03-23 | 河南卓越建设工程有限公司 | Automatic foundation pit large-span covering system |
| CN212773742U (en) * | 2020-08-01 | 2021-03-23 | 江苏广传建设有限公司 | Dustproof noise reduction device for earthwork construction |
| CN212980896U (en) * | 2020-07-21 | 2021-04-16 | 江苏海洋大学 | Model storage device for product design |
| CN213709545U (en) * | 2020-09-15 | 2021-07-16 | 中铁十一局集团有限公司 | Automatic curtain shielding device used during foundation pit excavation |
| WO2021148869A1 (en) * | 2020-01-21 | 2021-07-29 | King Abdullah University Of Science And Technology | Method and system for protecting and cleaning solar panels |
| CN113210392A (en) * | 2021-05-31 | 2021-08-06 | 中国五冶集团有限公司 | Dustproof curtain system |
| CN113500079A (en) * | 2021-06-22 | 2021-10-15 | 北京岩土工程勘察院有限公司 | Electric dust screen covering device |
| CN214832708U (en) * | 2021-04-01 | 2021-11-23 | 中交一公局厦门工程有限公司 | Full-automatic movable subway foundation pit protection greenhouse |
-
2021
- 2021-12-09 CN CN202111501978.2A patent/CN114308976A/en active Pending
Patent Citations (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413638A (en) * | 1972-06-02 | 1975-11-12 | Entreprises Soc Gle | Method of constructing a tank in the ground |
| AU2744292A (en) * | 1991-10-29 | 1993-05-06 | William Robert Burnett | Shelter apparatus |
| EP0810328A2 (en) * | 1996-05-31 | 1997-12-03 | Emunds & Staudinger GmbH | Abutment for a strut used in trench sheeting |
| CA2299090A1 (en) * | 2000-02-22 | 2001-08-22 | Epi Environmental Products Inc. | Method and apparatus for covering landfill |
| CN101091036A (en) * | 2004-12-21 | 2007-12-19 | D·卡特勒 | Moveable cover or awning |
| US20060175019A1 (en) * | 2005-02-05 | 2006-08-10 | Martin Rewak | Adjustable canopy |
| WO2008025538A1 (en) * | 2006-08-29 | 2008-03-06 | Hochschule Bremen | Antifouling coating |
| JP2014029064A (en) * | 2012-07-31 | 2014-02-13 | Masahiro Abe | Slope frame construction method |
| CN203201445U (en) * | 2013-02-06 | 2013-09-18 | 上海正见门窗科技有限公司 | Rail-mounted specially-shaped sun-shading roller shutter |
| CN205153370U (en) * | 2015-11-25 | 2016-04-13 | 吕波 | Awning |
| CN105544891A (en) * | 2015-12-28 | 2016-05-04 | 山东华信塑胶股份有限公司 | Specially shaped canopy sun-shading structure and working method thereof |
| CN205907807U (en) * | 2016-08-06 | 2017-01-25 | 杭州双成遮阳制品有限公司 | Side tension system's special -shaped canopy of heavens covering or awning on a car, boat, etc |
| CN206174604U (en) * | 2016-11-18 | 2017-05-17 | 湖州山牛野营用品有限公司 | Tent of easily accomodating and carrying |
| CN110087453A (en) * | 2016-12-20 | 2019-08-02 | 3M创新有限公司 | Condensate manages manifold and system |
| CN108086327A (en) * | 2018-01-19 | 2018-05-29 | 浙江省建建设集团有限公司 | A kind of special-shaped construction method of deep foundation ditch of adjacent subway tunnel |
| 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 |
| CN208251790U (en) * | 2018-05-18 | 2018-12-18 | 高友柏 | The movable awning that can be shunk automatically |
| CN109594848A (en) * | 2019-01-18 | 2019-04-09 | 北京蓝天未来科技有限公司 | A kind of large span awning device |
| CN210032691U (en) * | 2019-03-14 | 2020-02-07 | 中建二局第一建筑工程有限公司 | Dustproof structure for construction site |
| CN211368732U (en) * | 2019-10-28 | 2020-08-28 | 潘雅丽 | Foundation ditch supporting construction for hydraulic engineering |
| CN211472569U (en) * | 2019-12-31 | 2020-09-11 | 郑州一建集团有限公司 | Subway station foundation ditch earthwork excavation is with portable dust keeper of full coverage |
| CN211596474U (en) * | 2019-12-31 | 2020-09-29 | 中铁十局集团第二工程有限公司 | Deep foundation pit construction dust keeper |
| WO2021148869A1 (en) * | 2020-01-21 | 2021-07-29 | King Abdullah University Of Science And Technology | Method and system for protecting and cleaning solar panels |
| CN211714780U (en) * | 2020-02-14 | 2020-10-20 | 福建富元建设工程有限公司 | Foundation pit support structure |
| CN212773580U (en) * | 2020-03-18 | 2021-03-23 | 河南卓越建设工程有限公司 | Automatic foundation pit large-span covering system |
| CN212980896U (en) * | 2020-07-21 | 2021-04-16 | 江苏海洋大学 | Model storage device for product design |
| CN212773742U (en) * | 2020-08-01 | 2021-03-23 | 江苏广传建设有限公司 | Dustproof noise reduction device for earthwork construction |
| CN213709545U (en) * | 2020-09-15 | 2021-07-16 | 中铁十一局集团有限公司 | Automatic curtain shielding device used during foundation pit excavation |
| CN112227821A (en) * | 2020-10-11 | 2021-01-15 | 徐桐 | Intelligent sealing garage |
| CN112282502A (en) * | 2020-11-01 | 2021-01-29 | 郑会清 | Building foundation pit safety device |
| CN214832708U (en) * | 2021-04-01 | 2021-11-23 | 中交一公局厦门工程有限公司 | Full-automatic movable subway foundation pit protection greenhouse |
| CN113210392A (en) * | 2021-05-31 | 2021-08-06 | 中国五冶集团有限公司 | Dustproof curtain system |
| CN113500079A (en) * | 2021-06-22 | 2021-10-15 | 北京岩土工程勘察院有限公司 | Electric dust screen covering device |
Non-Patent Citations (3)
| Title |
|---|
| "墩基围幕临时加固工程――高压旋转喷射桩施工", 《铁道建筑》 * |
| 卜炎主编: "《中国机械设计大典 第3卷 机械零部件设计》", 31 January 2002, 江西科学技术出版社 * |
| 高崇: "《铁路货运技术与管理》", 中国铁道出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201073A (en) * | 2023-03-15 | 2023-06-02 | 山东省水利工程建设监理有限公司 | Water conservancy facility piping safety processing device |
| CN116201073B (en) * | 2023-03-15 | 2024-03-15 | 山东省水利工程建设监理有限公司 | Water conservancy facility piping safety processing device |
| CN117717846A (en) * | 2024-01-08 | 2024-03-19 | 中建三局集团有限公司 | Air convection type intelligent dustproof noise reduction awning system suitable for complex surrounding environment |
| CN117717846B (en) * | 2024-01-08 | 2024-05-31 | 中建三局集团有限公司 | Air convection type intelligent dustproof noise reduction awning system suitable for complex surrounding environment |
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