CN110821196B - Safety device of construction elevartor shaft - Google Patents
Safety device of construction elevartor shaft Download PDFInfo
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- CN110821196B CN110821196B CN201911214164.3A CN201911214164A CN110821196B CN 110821196 B CN110821196 B CN 110821196B CN 201911214164 A CN201911214164 A CN 201911214164A CN 110821196 B CN110821196 B CN 110821196B
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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
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
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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
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
- E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
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- Civil Engineering (AREA)
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- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a safety protection device of a building construction elevator shaft, which utilizes a tensioning structure expanded outwards from the middle to adapt to elevator well mouths with different widths, and forms a secondary protection through the matching of a protective net and a deflection buffer structure.
Description
Technical Field
The invention discloses a safety protection device for a building construction elevator shaft, relates to a device for performing safety protection on an elevator shaft mouth on a building construction site and an adjusting method thereof, and belongs to the field of building construction. In particular to a protective device for an elevator wellhead, which is suitable for elevator wellheads with different widths by expanding a tensioning structure outwards from the middle, and forms secondary protection by matching a protective net and a deflection buffer structure.
Background
At present, when the building construction, main safety problem during the safety protection problem of elevartor shaft, accomplish the back at building concrete main body frame, the elevator well head does not have any safeguard measure, safety construction appears easily, consequently, need protect temporarily, the protection of current elevator well head often adopts simple and easy pipe support structure to intercept, pipe support poor stability, have external force contact slightly, empty easily, the safety protection effect is poor, some adoption abandonment panel protects, connect through the steel nail, the installation effectiveness is low, above-mentioned method is all too simple and easy, there is great potential safety hazard.
Publication No. CN208564021U discloses a detachable elevartor shaft protector, including the elevartor shaft, its characterized in that: an elevator shaft protection device body is arranged inside the elevator shaft, and the upper end of the elevator shaft protection device body is detachably connected with a cross rod arranged outside the elevator shaft through an auxiliary rope; the lower extreme of elevartor shaft protector body passes through retaining member and is connected with the ground is detachable, and this structure adopts frame construction, and the size is fixed, can not adapt unidimensional elevartor shaft, and need be at fixed point position mounting screw, and the installation is complicated.
The publication number CN105883562A discloses a fence type elevator well head protective door, which comprises a protective door frame and threaded steel bars, wherein a plurality of groups of elastic connecting pieces are transversely arranged among the threaded steel bars, a foot blocking plate is arranged at the bottom end of the protective door frame, the bottom end of the foot blocking plate is arranged in a track arranged on the ground, and a baffle plate is vertically arranged on one side of the track; two groups of fixing mechanisms are arranged on one side, opposite to the baffle, of the protective door frame, and each fixing mechanism comprises two supporting shafts welded on the outer wall of the protective door frame and a fixing piece clamped on the supporting shafts; a handle is arranged on the outer wall of one side of the protective door frame; the rectangular warning board is arranged in the middle of the protective door frame, the device is of a frame structure, the protective door frame is really supported, the whole structure is rigidly sealed, and the protective door frame is poor in protective and supporting effects on external impact.
Disclosure of Invention
In order to improve the situation, the invention provides a safety protection device of a building construction elevator shaft, which is a protection device of an elevator shaft mouth, is suitable for elevator shaft mouths with different widths by expanding a tensioning structure outwards from the middle, and forms secondary protection by matching a protective net and a deflection buffer structure.
The safety protection device for the building construction elevator shaft comprises a traction rod assembly, two fixing frames and a protection net, wherein the traction rod assembly used for adjusting the tensioning width is arranged between the two fixing frames, clamping parts are arranged on the same sides of the two fixing frames, the bottoms of the clamping parts are hinged to the fixing frames, a deflection buffer structure is arranged in the middle of the clamping parts, and the protection net adaptive to the tensioning width is arranged between the clamping parts;
the fixing frame is composed of a vertical rod, rubber mats and pin rods, three groups of vertical clamping grooves are formed in one side of the vertical rod, the widths of the vertical clamping grooves in the two sides are the same and are larger than the width of the clamping groove in the middle, the pin rods are arranged at the two ends of each vertical clamping groove and penetrate through the three groups of clamping grooves, rubber strips are wound on the surfaces of the pin rods, the rubber mats are equidistantly arranged on the side face of one side of the vertical rod, the cross sections of the rubber mats are of a trapezoidal structure, the length of the middle rubber mat is smaller than the lengths of the rubber mats at the two ends, and a rectangular accommodating space is reserved in the side face of the vertical rod;
the clamping part comprises a supporting arm, a connecting frame, a hinged frame, a pressing plate and screws, one end of the supporting arm is hinged to one end of the vertical rod through the hinged frame, the hinged point is located on the other side of the vertical rod, the length of the supporting arm is equal to the length of the vertical rod, the section of the supporting arm is of an L-shaped structure, the length of the long edge of the L-shaped structure is equal to the width of a corresponding binding surface on the vertical rod, a plurality of mounting holes are formed in the surface of the long edge at equal intervals, the length of the short edge of the L-shaped structure is 1-2cm, the hinged frame is arranged on the supporting arm, the pressing plate is connected to the inner side of the supporting arm through the screws and located between the supporting arm and the vertical rod, the width of 1-1.5cm is reserved from two ends of the pressing plate to two ends of the supporting arm, the binding surfaces of the pressing plate and the supporting arm are wavy, and rubber pads are embedded in the binding surfaces;
a deflection buffer structure capable of opening and closing the supporting arm is arranged between the supporting arm and the upright stanchion, one end of the deflection buffer structure is hinged to the middle position of the upright stanchion, the other end of the deflection buffer structure is hinged to the hinge frame, and the deflection buffer structure corresponds to a rectangular accommodating space formed by the rubber mat;
the deflection buffer structure is one or a combination of an air cap, an air cylinder, a damper and an elastic telescopic rod;
the deflection buffering structure is preferably a gas cap;
the traction rod assembly comprises a traction rod, screw sleeves, screw rods, an arc plate and a limiting table, the screw sleeves are arranged at two ends of the traction rod, the thread directions of the screw sleeves are opposite, the traction rod is of a hexagonal pipe body structure, strip-shaped through grooves for traction fastening are formed in six surfaces of the hexagonal pipe body, steps for limiting are formed by connecting the screw sleeves and the hexagonal pipe, the two screw rods are correspondingly screwed and arranged in the screw sleeves, one ends of the screw rods extend into the traction rod, the limiting table is arranged on one end of each screw rod, the limiting table is spherical, the arc plate is arranged on the other end of the traction rod, the axis of the arc plate is perpendicular to the axis of the screw rods, the width of the arc plate is equal to the width of vertical clamping grooves in two sides of the vertical plate, a clearance fit is formed between the arc plate and the annular knurls are provided with inner rings;
the protection network is woven into the rhombus net by braided wire, braided wire comprises spring tube (16) and inside lining core (17), the inside lining core is hollow rubber tube, and the spring tube is the spring structure of wire spiral winding formation, the port of braided wire adopts the extrusion mode to form closed sealing.
The invention also relates to an adjusting method of the elevator shaft safety protection device in building construction, which comprises the following steps:
1. connecting one side edge of the protective net with a clamping part on one fixing frame, and connecting the other side edge of the protective net with a clamping part on the other fixing frame;
the connection adjusting method comprises the following steps:
1.1, detaching the pressure plate through the screw, so that the pressure plate is separated from the support plate;
1.2 correspondingly placing meshes on one side edge of the protective net on the supporting plate, and enabling the mounting holes to correspondingly fall into the meshes;
1.3 pressing the pressing plate on the protective net, pressing one side of the wavy surface of the pressing plate on the protective net, and screwing the screws one by one to enable the pressing plate to be embedded and pressed on the edge of the protective net;
1.4, the other side is connected and installed by adopting the steps;
1.5 when the width of the protective net is large, the protective net is wound and rolled through the rotary pressing plate, so that the width of the protective net is narrowed, and further width adjustment is formed;
2. the two fixing frames are symmetrically placed at the position of an elevator wellhead, so that the vertical clamping grooves on the two fixing frames are opposite, and the three vertical clamping grooves correspond to one another;
3. stretching two ends of the traction rod and correspondingly clamping arc-shaped plates at the two ends on the pin rod to form tensioning supports on the width of the two fixing frames, and attaching and fixing the two fixing frames through a rubber cushion;
the method for adjusting the width of the fixing frame comprises the following steps:
3.1 the traction rod is rotated to drive the threaded sleeves at the two ends to rotate, and the screw rods at the two ends are synchronously stretched due to the opposite thread directions of the threaded sleeves, so that the pin rod is supported;
3.2 when the width of the elevator shaft mouth is smaller, the support is carried out by adopting an X cross support method so as to reduce the width between the two fixing frames;
the X cross bracing method is as follows:
a. preparing two traction rods;
b. adjusting the traction rod to the minimum length, then clamping the arc-shaped plate at one end of the traction rod in a clamping groove at one side of a fixed frame, and clamping the arc-shaped plate with the pin rod at the upper side;
c. the length of the traction rod is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at the other fixed side and is clamped with the pin rod at the lower side;
d. clamping the arc-shaped plate at one end of the other traction rod in the clamping groove at the other side of one fixing frame, and clamping the arc-shaped plate with the pin rod at the lower side;
e. the length of the traction rod is adjusted, so that the arc-shaped plate at the other end is clamped in the other clamping groove at the other fixed side and is clamped with the pin rod at the upper side;
f. the two traction rods are crossed and then pre-tightened through the strip-shaped grooves on the traction rods, so that the two traction rods form a tensioning support between the two fixing frames;
3.3 when the width of the elevator wellhead is too large, the elevator wellhead is supported by adopting a parallel support method so as to increase the tensioning width between the fixing frames;
the parallel support method is as follows:
a. preparing two traction rods;
b. adjusting the traction rod to the minimum length, then clamping the arc-shaped plate at one end of the traction rod in a clamping groove at one side of a fixed frame, and clamping the arc-shaped plate with the pin rod at the upper side;
c. the length of the traction rod is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at the other fixed side and is clamped with the pin rod at the upper side;
d. clamping the arc-shaped plate at one end of the other traction rod in the clamping groove at the other side of one fixing frame, and clamping the arc-shaped plate with the pin rod at the lower side;
e. the length of the traction rod is adjusted, so that the arc-shaped plate at the other end is clamped in the other clamping groove at the other fixed side and is clamped with the pin rod at the lower side;
f. the two traction rods are sewn in parallel and then are pre-tightened through the strip-shaped grooves on the traction rods, so that the two traction rods form a tensioning support between the two fixing frames;
4. the installation is accomplished, when the outside when meetting unexpected situation, the traction rod structure can keep off the protection to operation process formation check, and when the traction rod can not form the protection, external force strikes the protection network, pushes away through the protection network and drives the clamping part and deflect along the pin joint, and the buffer structure that deflects this moment forms the hindrance to deflecting of clamping part, forms the resistance buffering to progressively deflect the protection network to in the elevator shaft, form the load bearing and protect from the elevator well head thing that weighs down.
Has the beneficial effects.
Firstly, carrying out erection protection according to different elevator opening widths;
second, second grade support protection, form and intercept the check to block;
thirdly, the elastic net rope structure has good protection and buffering performance;
fourthly, the structure is simple, and the installation, the disassembly and the assembly are convenient.
Drawings
Fig. 1 is a perspective view of a safety guard of an elevator shaft in building construction according to the present invention;
FIG. 2 is a perspective view of a safety shield support arm of the elevator shaft of the present invention;
FIG. 3 is a perspective view of a safety guard pulling rod of the elevator shaft in building construction according to the present invention;
FIG. 4 is a schematic structural view of a safety guard pulling rod of the elevator shaft in building construction according to the present invention;
FIG. 5 is a three-dimensional structure view of a safety device pulling rod sleeve of the elevator shaft for building construction according to the present invention;
FIG. 6 is a three-dimensional structure view of a protective net wire of a safety protection device of a construction elevator shaft;
fig. 7 is a three-dimensional structure view of the safety protection device of the elevator shaft in building construction.
In the attached drawings
Wherein the parts are: the device comprises a vertical rod (1), a rubber mat (2), a gas cap (3), a supporting arm (4), a protective screen (5), a pulling rod (6), a pin rod (7), a connecting frame (8), a hinged frame (9), a pressing plate (10), a screw (11), a threaded sleeve (12), a screw rod (13), an arc-shaped plate (14), a limiting table (15), a spring pipe (16) and an inner lining core (17).
The specific implementation mode is as follows:
the invention relates to a safety protection device of a building construction elevator shaft, which comprises a traction rod assembly, two fixing frames and a protective net (5), wherein the traction rod assembly for adjusting the tensioning width is arranged between the two fixing frames, clamping parts are arranged on the same sides of the two fixing frames, the bottoms of the clamping parts are hinged on the fixing frames, a deflection buffer structure is arranged in the middle of the clamping parts, the protective net (5) matched with the tensioning width is arranged between the clamping parts,
the fixing frame consists of a vertical rod (1), rubber mats (2) and pin rods (7), wherein three groups of vertical clamping grooves are formed in one side of the vertical rod (1), the widths of the vertical clamping grooves on two sides are the same and are larger than the width of the clamping groove in the middle, the pin rods (7) are arranged at two ends of each vertical clamping groove, the pin rods (7) penetrate through the three groups of clamping grooves, adhesive tapes are wound on the surfaces of the pin rods (7), the rubber mats (2) are arranged on the side surface of one side of the vertical rod (1) in an equidistant mode, the cross section of each rubber mat (2) is of a trapezoidal structure, the length of each rubber mat (2) in the middle is smaller than the length of the rubber mats (2) at two ends, and a rectangular accommodating space is reserved in the side surface of the vertical rod (1),
the clamping part consists of a supporting arm (4), a connecting frame (8), a hinged frame (9), a pressing plate (10) and screws (11), one end of the supporting arm (4) is hinged to one end of the vertical rod (1) through the hinged frame (9), the hinged point is positioned on the other side of the vertical rod (1), the length of the supporting arm (4) is equal to that of the vertical rod (1), the cross section of the supporting arm (4) is of an L-shaped structure, the length of a long edge of the L-shaped structure is equal to the width of a corresponding binding surface on the vertical rod (1), a plurality of mounting holes are formed in the surface of the long edge at equal intervals, the length of a short edge of the L-shaped structure is 1-2cm, the hinged frame (9) is arranged on the supporting arm (4), the pressing plate (10) is connected to the inner side of the supporting arm (4) through a plurality of screws (11), the pressing plate (10) is positioned between the supporting arm (4) and the vertical rod (1), and the width of 1-1.5cm is reserved from the two ends of the pressing plate (10) to the two ends of the supporting arm (4), the binding surfaces of the pressure plate (10) and the supporting arms (4) are wave-shaped, and rubber pads (2) are embedded on the binding surfaces,
a deflection buffer structure capable of opening and closing the support arm (4) is arranged between the support arm (4) and the upright stanchion (1), one end of the deflection buffer structure is hinged to the middle position of the upright stanchion (1), the other end is hinged to the hinge frame (9), the rectangular containing space formed by the gas cap (3) and the rubber mat (2) is corresponding,
the deflection buffering structure is one of an air cap (3), an air cylinder, a damper and an elastic telescopic rod, preferably the air cap (3) structure,
the traction rod assembly comprises a traction rod (6), threaded sleeves (12), screw rods (13), an arc-shaped plate (14) and a limiting table (15), wherein the threaded sleeves (12) are arranged at two ends of the traction rod (6), the thread directions of the threaded sleeves (12) are opposite, the traction rod (6) is of a hexagonal pipe body structure, strip-shaped through grooves for traction fastening are formed in six surfaces of the hexagonal pipe body, the threaded sleeves (12) and the hexagonal pipe are connected to form a step for limiting, the two screw rods (13) are correspondingly screwed in the threaded sleeves (12), one ends of the screw rods (13) extend into the traction rod (6), the limiting table (15) is arranged at one end of each screw rod (13), the limiting table (15) is spherical, the arc-shaped plate (14) is arranged at the other end of the traction rod (6), the axis of the arc-shaped plate (14) is perpendicular to the axis of each screw rod (13), and the width of the arc-shaped plate (14) is equal to the width of vertical clamping grooves on two sides of the vertical plate, and form clearance fit with each other, the inner ring of the arc-shaped plate (14) is provided with knurls,
the protection network (5) is woven into the rhombus net by the braided wire, the braided wire comprises spring tube (16) and inside lining core (17), inside lining core (17) are hollow rubber tube, and spring tube (16) are the spring structure of wire spiral winding formation, the port of braided wire adopts the extrusion mode to form closed sealing.
The invention also relates to an adjusting method of the elevator shaft safety protection device in building construction, which comprises the following steps:
1. one side edge of the protective net (5) is connected with a clamping part on one fixing frame, and the other side edge of the protective net is connected with a clamping part on the other fixing frame;
the connection adjusting method comprises the following steps:
1.1, the pressure plate (10) is disassembled through the screw (11), so that the pressure plate (10) is separated from the support plate;
1.2 correspondingly placing meshes on one side edge of the protective net (5) on the supporting plate, and enabling the mounting holes to correspondingly fall into the meshes;
1.3 pressing a pressing plate (10) on the protective net (5), pressing one wavy side of the pressing plate (10) on the protective net (5), and screwing down screws (11) one by one to enable the pressing plate (10) to be embedded and pressed on the edge of the protective net (5);
1.4, the other side is connected and installed by adopting the steps;
1.5 when the width of the protective net (5) is large, the protective net (5) is wound and coiled through a rotary pressing plate (10), so that the width of the protective net (5) is narrowed, and further width adjustment is formed;
2. the two fixing frames are symmetrically placed at the position of an elevator wellhead, so that the vertical clamping grooves on the two fixing frames are opposite, and the three vertical clamping grooves correspond to one another;
3. stretching two ends of the traction rod (6) and correspondingly clamping arc plates (14) at the two ends on the pin rod (7), forming tensioning supports on the width of the two fixing frames, and attaching and fixing the two fixing frames through the rubber mat (2);
the method for adjusting the width of the fixing frame comprises the following steps:
3.1, the traction rod (6) is rotated to drive the threaded sleeves (12) at the two ends to rotate, and the threaded rods (13) at the two ends are synchronously stretched due to the fact that the thread directions of the threaded sleeves (12) are opposite, so that the pin rod (7) is supported;
3.2 when the width of the elevator shaft mouth is smaller, the support is carried out by adopting an X cross support method so as to reduce the width between the two fixing frames;
the X cross bracing method is as follows:
a. preparing two traction rods (6);
b. adjusting the traction rod (6) to the minimum length, and then clamping an arc-shaped plate (14) at one end of the traction rod (6) in a clamping groove at one side of a fixed frame and clamping the arc-shaped plate with a pin rod (7) at the upper side;
c. the length of the traction rod (6) is adjusted, so that the arc-shaped plate (14) at the other end is clamped in the clamping groove at the other fixed side and is clamped with the pin rod (7) at the lower side;
d. an arc-shaped plate (14) at one end of the other traction rod (6) is clamped in a clamping groove at the other side of one fixed frame and is clamped with a pin rod (7) at the lower side;
e. the length of the traction rod (6) is adjusted, so that the arc-shaped plate (14) at the other end is clamped in the other clamping groove at the other fixed side and is clamped with the pin rod (7) at the upper side;
f. the two traction rods (6) are crossed and then pre-tightened through the strip-shaped grooves in the traction rods (6), so that the two traction rods (6) form a tensioning support between the two fixing frames;
3.3 when the width of the elevator well mouth is too large, the elevator well mouth is supported by adopting a parallel support method so as to increase the tensioning width between the fixed frames;
the parallel support method is as follows:
a. preparing two traction rods (6);
b. adjusting the traction rod (6) to the minimum length, and then clamping an arc-shaped plate (14) at one end of the traction rod (6) in a clamping groove at one side of a fixed frame and clamping the arc-shaped plate with a pin rod (7) at the upper side;
c. the length of the traction rod (6) is adjusted, so that the arc-shaped plate (14) at the other end is clamped in the clamping groove at the other fixed side and is clamped with the pin rod (7) at the upper side;
d. an arc-shaped plate (14) at one end of the other traction rod (6) is clamped in a clamping groove at the other side of one fixed frame and is clamped with a pin rod (7) at the lower side;
e. the length of the traction rod (6) is adjusted, so that the arc-shaped plate (14) at the other end is clamped in the other clamping groove at the other fixed side and is clamped with the pin rod (7) at the lower side;
f. the two traction rods (6) are sewn in parallel and then are pre-tightened through the strip-shaped grooves in the traction rods (6), so that the two traction rods (6) form tensioning support between the two fixing frames;
4. the installation is accomplished, when the outside when meetting unexpected situation, traction rod (6) structure can form the check fender protection to the operation process, when traction rod (6) can not form the protection, external force strikes protection network (5), push away through protection network (5) and drive the clamping part and deflect along the pin joint, the buffer structure that deflects this moment forms the hindrance to the deflection of clamping part, form the resistance buffering, and gradually deflect protection network (5) to in the elevator shaft, form the load bearing and protect from the elevator well head thing that weighs down.
Three groups of vertical clamping grooves are formed in one side of the vertical rod (1), and the clamping grooves in the two sides can be separated through the middle clamping groove, so that a gap is reserved between the two traction rods (6) in use, interference in deflection adjustment is avoided, and the supporting strength of the vertical rod (1) can be improved due to the structure of the plurality of vertical clamping grooves;
the widths of the vertical clamping grooves on the two sides are the same and are larger than that of the clamping groove in the middle, a narrow clamping groove can be reserved in the middle for expanding and installing the protective net (5), and the protective effect is improved by arranging the protective net (5) between the vertical rods (1);
two ends of the vertical clamping groove are provided with pin rods (7) which can be matched with the traction rods (6) for supporting arrangement, so that the two fixing frames are supported and are adaptively attached to an elevator wellhead;
the adhesive tape is wound on the surface of the pin rod (7), so that the clamping strength of the arc-shaped plate (14) is improved, the slipping condition is avoided, and the stability of tensioning expansion is improved;
the section of the rubber mat (2) is trapezoidal, so that the state of an elevator shaft wall can be better used, particularly the elevator shaft wall built by a blank house is uneven, and the rubber mat (2) can be better attached and filled;
the length of the middle rubber mat (2) is smaller than the lengths of the rubber mats (2) at the two ends, a rectangular accommodating space is reserved on the side surface of the upright rod (1), an accommodating space can be provided for the deflection buffer structure, the deflection buffer structure is accommodated when the deflection buffer structure is not used, the deflection buffer structure is protected, and the service life is prolonged;
the length of the supporting arm (4) is equal to that of the upright stanchion (1), so that the size can be fitted during storage, the movement and the disassembly are convenient, a connecting and fixing structure is reduced, and the installation and use efficiency is improved;
the cross section of the supporting arm (4) is of an L-shaped structure, the length of the long side of the L shape is equal to the width of the corresponding binding surface on the vertical rod (1), and the length of the short side of the L shape is 1-2cm, so that guidance can be provided for deflection of the supporting arm (4), meanwhile, extrusion of the rubber mat (2) in the size process is avoided, and the stress state of the fixing frame in the supporting process is changed;
the width of 1-1.5cm is reserved from the two ends of the pressure plate (10) to the two ends of the supporting arm (4);
the binding surfaces of the pressing plate (10) and the supporting arms (4) are wavy, and rubber pads (2) are embedded in the binding surfaces, so that the protective net (5) can be embedded and pressed and fixed, and the pressing strength of the protective net (5) is improved;
a deflection buffer structure capable of opening and closing the support arm (4) is arranged between the support arm (4) and the upright stanchion (1), a secondary buffer can be formed between the fixing frames, and the part entering the elevator shaft is spread, supported and intercepted through the deflection buffer structure, so that the safety is improved;
the deflection buffer structure is preferably a gas cap (3), so that the stability is good, the buffer resistance can be adjusted, the structure is simple, and the cost is low;
the adjusting of the traction rod (6) can avoid the working procedures of drilling and the like when the protective structure is installed, and compared with the existing installation of a drilling screw (11), the installation has the advantages of small damage to the building and quick installation;
the traction rod (6) is of a hexagonal pipe body structure, so that the rotation, expansion and support are facilitated, and the convenience of adjustment is improved;
the six surfaces of the hexagonal pipe body are provided with strip-shaped through grooves for pulling and fastening, and the extension rod can penetrate through the through grooves to perform rotary pre-tightening during fastening;
the axis of the arc-shaped plate (14) is perpendicular to the axis of the screw (13), so that the clamping can be always parallel to the axis of the pin rod (7) when the tensioning is carried out, the sharing of clamping thrust is improved, and the pressure balance of the tensioning part of the fixing frame is improved;
the lining core (17) is a hollow rubber tube, the spring tube (16) is a spring structure formed by spirally winding a metal wire, so that the protective net (5) has an elastic buffer structure, the deflection buffer structure is effectively matched for interception and buffering, and the safety protection performance is improved;
the above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (8)
1. A safety protection device of a building construction elevator shaft comprises a traction rod assembly, two fixing frames and a protective net, wherein the traction rod assembly used for adjusting the tensioning width is arranged between the two fixing frames, clamping parts are arranged on the same sides of the two fixing frames, the bottoms of the clamping parts are hinged to the fixing frames, a deflection buffer structure is arranged in the middle of each fixing frame, the deflection buffer structure is selected from one of an air cap, an air cylinder, a damper and an elastic telescopic rod, the protective net adaptive to the tensioning width is arranged between the clamping parts, the safety protection device is characterized in that the traction rod assembly is expanded outwards from the middle to adapt to elevator well mouths with different widths, secondary protection is formed by matching the protective net and the deflection buffer structure, the fixing frames are composed of upright rods, rubber pads and pin rods, three groups of vertical clamping grooves are formed in one side of the upright rods, the vertical clamping grooves in two sides are the same in width, the width of the middle clamping groove is larger than that of the vertical clamping groove, pin rods are arranged at two ends of the vertical clamping groove and penetrate through three groups of clamping grooves, adhesive tapes are wound on the surfaces of the pin rods, a plurality of rubber mats are arranged on the side face of the other side of the vertical rod at equal intervals, the cross sections of the rubber mats are of trapezoidal structures, the length of the middle rubber mat is smaller than that of the rubber mats at two ends, a rectangular accommodating space is reserved in the side face of the vertical rod, the clamping part comprises a supporting arm, a connecting frame, a hinged frame, a pressing plate and screws, one end of the supporting arm is hinged to one end of the vertical rod through the connecting frame, the hinged point is located on the other side of the vertical rod, the length of the supporting arm is equal to that of the vertical rod, the cross section of the supporting arm is of an L-shaped structure, the length of the long edge of the L-shaped structure is equal to the width of the corresponding binding face on the vertical rod, a plurality of mounting holes are equidistantly formed in the face of the long edge, the short edge of the L-shaped structure is 1-2cm, and the hinged frame is arranged on the supporting arm, the pressing plate is connected with the inner side of the supporting arm through a plurality of screws and is arranged between the supporting arm and the vertical rod, the width of 1-1.5cm is reserved from the two ends of the pressing plate to the two ends of the supporting arm, the binding surface of the pressing plate and the supporting arm is wavy, and a rubber pad is embedded in the binding surface.
2. The safety protection device for the elevator shaft in building construction according to claim 1, wherein a deflection buffer structure capable of opening and closing the support arm is arranged between the support arm and the vertical rod, one end of the deflection buffer structure is hinged to the middle position of the vertical rod, and the other end of the deflection buffer structure is hinged to the hinge frame.
3. The safety protection device for the construction elevator shaft according to claim 1, wherein the air cap corresponds to a rectangular accommodating space formed by the rubber mat.
4. The safety protection device for the elevator shaft in building construction according to claim 2, wherein the traction rod assembly comprises a traction rod, threaded sleeves, a screw rod, an arc-shaped plate and a limit platform, the threaded sleeves are arranged at two ends of the traction rod, the thread directions of the thread sleeves are opposite, the traction rod is of a hexagonal pipe body structure, strip-shaped through grooves for traction fastening are formed in six surfaces of the hexagonal pipe body, the threaded sleeve and the hexagonal tube are connected to form a step for limiting, the two screws are correspondingly screwed in the threaded sleeve, one end of the screw rod extends into the traction rod, the limiting table is arranged on one end of the screw rod, the limiting table is spherical, the arc-shaped plate is arranged on the other end of the screw rod, the axis of arc perpendicular to screw rod axis, the width of arc equals the width of the vertical draw-in groove in both sides in the pole setting, and forms clearance fit each other, the arc inner circle is provided with the annular knurl.
5. The safety protection device for the construction elevator shaft according to claim 1, wherein the protection net is a diamond net woven by braided wires, the braided wires are composed of spring tubes and inner lining cores, the inner lining cores are hollow rubber tubes, the spring tubes are spring structures formed by spirally winding metal wires, and the ports of the braided wires form closed seals by adopting an extrusion mode.
6. The safety protection device for the construction elevator shaft according to claim 4, wherein the adjusting method for the safety protection device for the construction elevator shaft comprises the following steps:
1. connecting one side edge of the protective net with a clamping part on one fixing frame, and connecting the other side edge of the protective net with a clamping part on the other fixing frame;
the connection adjusting method comprises the following steps:
1.1, detaching the pressure plate through the screw, so that the pressure plate is separated from the supporting arm;
1.2 correspondingly placing meshes on one side edge of the protective net on the supporting arm, and enabling the mounting holes to correspondingly fall into the meshes;
1.3 pressing the pressing plate on the protective net, pressing one side of the wavy surface of the pressing plate on the protective net, and screwing the screws one by one to enable the pressing plate to be embedded and pressed on the edge of the protective net;
1.4, the other side is connected and installed by adopting the steps;
1.5 when the width of the protective net is large, the protective net is wound and rolled through the rotary pressing plate, so that the width of the protective net is narrowed, and further width adjustment is formed;
2. the two fixing frames are symmetrically placed at the position of an elevator wellhead, so that the vertical clamping grooves on the two fixing frames are opposite, and the three vertical clamping grooves correspond to one another;
3. stretching two ends of the traction rod and correspondingly clamping arc-shaped plates at the two ends on the pin rod to form tensioning supports on the width of the two fixing frames, and attaching and fixing the two fixing frames through a rubber cushion;
the method for adjusting the width of the fixing frame comprises the following steps:
3.1, the traction rod is rotated to drive the threaded sleeves at the two ends to rotate, and the screw rods at the two ends are synchronously stretched due to the fact that the thread directions of the threaded sleeves are opposite, so that the pin rod is supported;
3.2 when the width of the elevator shaft mouth is smaller, the support is carried out by adopting an X cross support method so as to reduce the width between the two fixing frames;
3.3 when the width of the elevator wellhead is too large, the elevator wellhead is supported by adopting a parallel support method so as to increase the tensioning width between the fixing frames;
4. the installation is accomplished, when the outside meets unexpected situation, the traction rod subassembly can keep off the protection to operation process formation check, and when the traction rod subassembly can not form the protection, external force strikes the protection network, drives the clamping part through the protection network and deflects along the pin joint, and the buffer structure that deflects this moment forms the hindrance to deflecting of clamping part, forms the resistance buffering to progressively deflect the protection network in to the elevator shaft, form the load bearing and protect from falling from the elevator well head thing.
7. The safety guard device for construction elevator shaft according to claim 6, wherein the X cross-bracing method comprises the steps of:
a. preparing two traction rod assemblies;
b. adjusting the traction rod assembly to the minimum length, then clamping an arc-shaped plate at one end of the traction rod assembly in a clamping groove at one side of a fixed frame, and clamping the arc-shaped plate with a pin rod at the upper side;
c. the length of the traction rod assembly is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at one side of the other fixing frame and is clamped with the pin rod at the lower side;
d. clamping an arc-shaped plate at one end of the other traction rod assembly in a clamping groove at the other side of one fixing frame, and clamping the arc-shaped plate with a pin rod at the lower side;
e. the length of the traction rod assembly is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at the other side of the other fixing frame and is clamped with the pin rod at the upper side;
f. the two traction rod assemblies are crossed, and then are pre-tightened through the strip-shaped through grooves in the traction rod assemblies, so that the two traction rod assemblies form a tensioning support between the two fixing frames.
8. The safety guard device for construction elevator shaft according to claim 6, wherein the parallel support method comprises the steps of:
a. preparing two traction rod assemblies;
b. adjusting the traction rod assembly to the minimum length, then clamping an arc-shaped plate at one end of the traction rod assembly in a clamping groove at one side of a fixed frame, and clamping the arc-shaped plate with a pin rod at the upper side;
c. the length of the traction rod assembly is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at one side of the other fixing frame and is clamped with the pin rod at the upper side;
d. clamping the arc-shaped plate at one end of the other traction rod component in the clamping groove at the other side of one fixed frame and clamping the arc-shaped plate with the pin rod at the lower side;
e. the length of the traction rod assembly is adjusted, so that the arc-shaped plate at the other end is clamped in the clamping groove at the other side of the other fixing frame and is clamped with the pin rod at the lower side;
f. the two traction rod assemblies are distributed in parallel, and then are pre-tightened through the strip-shaped through grooves in the traction rod assemblies, so that the two traction rod assemblies form a tensioning support between the two fixing frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911214164.3A CN110821196B (en) | 2019-12-02 | 2019-12-02 | Safety device of construction elevartor shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214164.3A CN110821196B (en) | 2019-12-02 | 2019-12-02 | Safety device of construction elevartor shaft |
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| CN110821196A CN110821196A (en) | 2020-02-21 |
| CN110821196B true CN110821196B (en) | 2022-05-10 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677309B (en) * | 2020-06-19 | 2021-07-30 | 滁州至赢建设有限公司 | Protector for construction |
| CN112681783B (en) * | 2020-12-16 | 2022-05-13 | 重庆建工集团股份有限公司 | Recoverable instrument formula protector |
| CN113738138B (en) * | 2021-08-09 | 2022-12-09 | 广东信城建设集团有限公司 | Temporary adjustable protection device for construction of building elevator |
| CN113647775A (en) * | 2021-08-19 | 2021-11-16 | 邵阳市健康福空气床垫有限公司 | Multifunctional intelligent mattress |
| CN114809630B (en) * | 2022-03-10 | 2023-07-21 | 中国建筑第二工程局有限公司 | Vertical shaft safety protection net laying device and application method thereof |
| CN114856158B (en) * | 2022-06-09 | 2023-12-26 | 天长市安骄金属制品科技有限公司 | Folding type protection mechanism convenient to install for building scaffold |
| CN115059085B (en) * | 2022-06-09 | 2023-07-07 | 国网浙江省电力有限公司丽水供电公司 | Foundation pit anti-falling device |
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| ES1070682U (en) * | 2009-06-09 | 2009-10-14 | Metalisteria Y Automatismos Larrosa, S.L | Protective device for the elevator hollow (Machine-translation by Google Translate, not legally binding) |
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| CN110821196A (en) | 2020-02-21 |
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