CN219773558U - Liftable elevator shaft operation protection platform - Google Patents

Abstract

The lifting elevator shaft operation protection platform comprises a lifting elevator shaft operation protection platform, wherein telescopic and lockable telescopic auxiliary tables are arranged on two sides of the protection table, a winch is fixedly arranged at the bottom of the protection table, a hoisting rope is wound on a winding drum of the winch, and the end part of the hoisting rope penetrates through a rope guiding sleeve to extend out above the protection table and is connected with a hook; the two sides of the width direction of the protection table are provided with supporting mechanisms, the supporting mechanisms are provided with swing arms which can adjust the distance and swing in a limited way, the upper end and the lower end of the outer side of each swing arm are provided with guide wheels, the supporting mechanisms are hinged with a pawl which has an outward swing trend at the lower end under the action of a tension spring, the supporting mechanisms are hinged with electric push rods, and the rod parts of the electric push rods are connected with the pawls. According to the utility model, the protection platform is controlled to ascend or descend along the elevator shaft according to the requirement of the construction height in the elevator shaft, so that the complexity of multiple disassembly and assembly of the safety platform is reduced, and the construction efficiency is improved; the application of lifting rope and pawl plays a role in traction and support of the protection platform, and the protection stability is improved.

Description

Liftable elevator shaft operation protection platform

Technical Field

The utility model belongs to the technical field of building construction safety protection, and particularly relates to a lifting elevator shaft operation protection platform

Background

The high-rise building has become an important component of urban construction projects, the elevator is an indispensable device for vertical transportation of the building, a vertical elevator shaft is required to be constructed for setting the elevator, a protection platform is required to be constructed below a construction position when the elevator shaft is constructed, the elevator shaft is generally constructed by steel pipes at floors, the replacement operation height is required to be rebuilt, a great amount of time is required for construction and dismantling, and the construction efficiency is reduced; and the defects that the platform is not built normally and the protection capability cannot be ensured exist.

Disclosure of Invention

The utility model aims to provide a lifting elevator shaft operation protection platform which can effectively protect elevator shaft construction and solve the technical problems of low construction efficiency and poor safety of the elevator shaft construction safety protection platform.

The object of the utility model is achieved in the following way: the utility model provides a liftable elevator shaft operation protection platform, including a rectangular protection platform, the protection platform comprises the frame that the section bar is constituteed and lay the steel sheet of upper surface, protection platform length direction's both sides are equipped with scalable and lockable flexible vice platform, protection platform's middle part is equipped with a rope hole, be provided with the wire rope cover of fixing on protection platform frame on this rope hole, the fixed hoist engine that sets up in protection platform bottom, the reel of hoist engine is gone up to be wound and is put the lifting rope, the tip of lifting rope stretches out above the protection platform through wire rope cover and is connected with the couple; the two sides of the width direction of the protection table are alternately provided with supporting mechanisms, the supporting mechanisms are provided with swing arms which can adjust the distance relative to the protection table and swing in a limited manner, the upper end and the lower end of the outer side of each swing arm are provided with guide wheels, the supporting mechanisms are hinged with a pawl which has an outward swing trend at the lower end under the action of a tension spring, the lower ends of the pawls are provided with spike parts, the supporting mechanisms are hinged with electric push rods in addition, and the rod parts of the electric push rods are connected with the pawls.

The supporting mechanism comprises a swing arm, a guide wheel, a limit bolt, a limit plate, a connecting arm, a mounting arm, a tension spring, a pawl, an electric push rod, a supporting rod, a guide sleeve and a supporting rod locking screw, wherein the guide sleeve is welded and fixed at the bottom of the frame of the protection table and is perpendicular to the length direction of the protection table, the supporting rod with a square section is adaptively inserted into a square inner hole of the guide sleeve, a supporting rod locking screw is arranged in a threaded hole of the guide sleeve, and the front end of the supporting rod locking screw is tightly propped against the outer surface of the supporting rod; the guide wheels are arranged at the upper end and the lower end of the outer side of the swing arm, the middle part of the inner side of the swing arm is vertically fixed with a connecting arm, the end part of the connecting arm is inserted into a U-shaped opening at the front end of the support rod and hinged with the support rod together through a pin shaft, the upper surface and the lower surface of the front part of the support rod are fixedly provided with limiting plates, limiting bolts are screwed in threaded holes of the limiting plates, the end parts of threaded rods of the limiting bolts point to the back of the swing arm, and the swing angle of the swing arm is limited by abutting the back of the swing arm through the limiting bolts; a transverse installation arm is fixed at the rear of the lower part of the swing arm, an L-shaped pawl is hinged on the installation arm, a tension spring is pulled between the pawl and the swing arm, and the movable end of the pawl extends outwards from the lower surface of the swing arm; the electric push rod is hinged on the mounting arm, and the electric push rod is in limited movable connection with the pawl.

The pawl is hinged with a connecting block, the connecting block is provided with a vertical chute, a push rod of the electric push rod is inserted into the chute of the connecting block, a front adjusting nut and a rear adjusting nut are correspondingly arranged at the front and rear positions of the connecting block on the push rod of the electric push rod, and a distance is arranged between the front adjusting nut and the rear adjusting nut.

The two sides of the protective table frame along the length direction are channel steel, and the opening directions of the channel steel at the two sides are inward; the telescopic auxiliary table is formed by laying steel plates on the rectangular frame; the two sides of the telescopic auxiliary table are adaptively inserted into the tracks formed by the inner grooves of the channel steel at the two sides of the protective table frame, the auxiliary table set screw is screwed into the threaded hole of the channel steel, and the end part of the screw rod of the auxiliary table set screw is tightly propped against the telescopic auxiliary table frame to fix the telescopic auxiliary table frame.

The wheel alignment rope guiding mechanism is fixed below the rope guiding sleeve on the bottom surface of the protection platform frame and consists of a wheel carrier, a wheel shaft and rope guiding wheels, wherein the wheel carrier is fixed on the protection platform frame, the wheel carrier is a rectangular frame, the outer parts Zhou Kaozai of the pair of rope guiding wheels are positioned in the space in the middle of the wheel carrier together, the rope guiding wheels are supported on the wheel carrier through the wheel shaft, and the arc grooves on the peripheries of the two rope guiding wheels are butted to form a guiding hole of a lifting rope.

The balancing weight is fixed on the bottom surface of the protective platform frame, the gravity center of the whole protective platform is positioned on or near the vertical line where the rope guide sleeve is positioned, and the protective platform is prevented from inclining when being lifted.

The outer side edges of the telescopic auxiliary tables are alternately provided with auxiliary table side wheels, and the telescopic auxiliary tables are used for supporting the wall surface when the protective platform is close to the two sides behind the elevator shaft.

Supporting legs are correspondingly arranged at four corners of the bottom surface of the protection table, and are supported on the ground during storage, so that contact of a winch and the like with the ground is avoided.

A rubber cushion is laid on the protective table to cushion and receive falling objects.

The winch is an electric winch, electric energy is needed for the winch and the electric push rod in the protection platform, and a direct current motor or an alternating current motor can be selected as a driving motor of the winch and a driving motor of the electric push rod; the power supply can be used for providing direct current by installing a storage battery at the bottom of the protection table or providing alternating current by connecting a dragging power line at the bottom of the protection table with commercial power, the storage battery can be used for directly supplying power to a direct current motor with adaptive voltage or supplying power to an alternating current motor after being inverted into alternating current, and the commercial power can be used for directly supplying power to the alternating current motor or supplying power to the direct current motor after being transformed into direct current. The motor operation control adopts the remote control of the prior art, realizes the forward rotation and the reverse rotation of the winch and the electric push rod motor, and can be realized by four-key click control.

Before use, the limiting bolt is adjusted to enable the swing angle of the swing arm to be 3-5 degrees, and the limiting bolt is locked by the back nut to avoid loosening. When the elevator is used, the elevator is transported to the bottom of an elevator shaft or a platform, the position of a supporting rod is adjusted to enable a guide wheel to be close to the inner wall of the elevator shaft and lock the supporting rod, then an expansion auxiliary table is adjusted to enable an auxiliary table side wheel to be close to the inner wall of the elevator shaft, I-steel is transversely arranged at the elevator shaft platform or the roof of a certain high-rise elevator shaft, a pull rope is downwards released, the pull rope is fastened to a hook, a winch is rotated to release a lifting rope, meanwhile, the pull rope is upwards pulled, the hook is pulled to the I-steel by the pull rope, and the lifting rope is hung on the I-steel by the hook; the electric push rod is retracted through the remote controller, the electric push rod pulls the pawl inwards to leave the wall surface in a retracted state, the winch is used for winding the lifting rope through the remote controller, the lifting rope drives the protection table to be lifted to a position below the working surface, the motor of the electric push rod is reversed through the remote controller, the electric push rod stretches out, the lower end of the pawl swings outwards under the action of the tension spring, the lower end of the pawl abuts against the wall of the elevator shaft and pushes the lower end of the swing arm to move inwards, the guide wheel at the upper end of the swing arm abuts against the wall of the elevator shaft outwards, the protection table is positioned left and right, the spike at the lower end of the pawl is inserted into the wall of the elevator shaft to be gripped, and the protection table is firmly stopped at a required position in the elevator shaft under the double actions of the lifting rope and the pawl; when the protective table is required to move up and down, the pawl is pulled inwards by the electric push rod and swings inwards to separate from the wall surface of the elevator shaft, the winch is started to drive the protective table to move up and down, and after the protective table reaches a set position, the pawl is released outwards by the electric push rod to be abutted against the wall surface in the elevator shaft for fixing. The utility model can adjust the height and position at any time so as to protect the safety of the construction of the elevator shaft.

According to the utility model, the protection platform is controlled to ascend or descend along the elevator shaft according to the requirement of the construction height in the elevator shaft, so that the complexity of multiple disassembly and assembly of the safety platform is reduced, and the construction efficiency is improved; the lifting rope and the pawl are used for pulling and supporting the protection table, so that the protection stability is improved; the application of the telescopic auxiliary platform is convenient for protecting the elevator shafts with different lengths, and the applicability is greatly improved.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged partial view of portion C of FIG. 3;

FIG. 5 is a B-B cross-sectional view of FIG. 2;

FIG. 6 is a schematic illustration of the connection of the electric putter portion;

fig. 7 is a schematic structural view of the paired wheel cord mechanism.

In the figure: 1-a protection table; 2-a supporting mechanism; 3-telescoping auxiliary; 4-auxiliary table side wheels; 5-lifting ropes; 6-supporting legs; 7-a winch; 8-balancing weight; 9-rope guiding sleeve; 10-a wheel pair rope guiding mechanism; 11-swing arms; 12-guiding wheels; 13-a limit bolt; 14-limiting plates; 15-a connecting arm; 16-mounting arms; 17-a tension spring; 18-pawl; 19-an electric push rod; 20-supporting rods; 21-a guide sleeve; 22-supporting rod locking screws; 23-channel steel; 24-a secondary set screw; 25-connecting blocks; 26-post-adjusting the nut; 27-front adjusting nut; 28-a guide wheel frame; 29-wheel axle; 30-a rope guiding wheel; 31-hooks.

Detailed Description

Referring to fig. 1 to 7, there is a rectangular protective table 1, the protective table 1 is formed by frame composed of sectional materials and steel plate laid on the upper surface, rubber buffer pads are laid on the protective table 1, four corners of the bottom surface of the protective table 1 are correspondingly provided with supporting legs 6, two sides of the protective table 1 in the length direction are provided with telescopic and lockable telescopic auxiliary tables 3, the middle part of the protective table 1 is provided with a rope outlet hole, the rope outlet hole is provided with a rope guiding sleeve 9 fixed on the frame of the protective table 1, the upper and lower ends of an inner hole of the rope guiding sleeve 9 are horn mouth-shaped, the bottom surface of the frame of the protective table 1 is fixedly provided with a pair of wheel guiding mechanisms 10 below the rope guiding sleeve 9, the pair of wheel guiding mechanisms 10 are formed by wheel frames 28, wheel shafts 29 and rope guiding wheels 30, the wheel frames 28 are fixedly arranged on the frame of the protective table 1, the outer sides Zhou Kaozai of the pair of rope guiding wheels 30 are together positioned in the space in the middle part of the wheel frames 28, the rope guiding wheels 30 are supported on the wheel frames 28 through wheel shafts 29, the two rope guiding wheels 30 are abutted to form a rope guiding groove 5 on the periphery, the two rope guiding wheels 5 are fixedly arranged on the bottom surfaces of the hoisting machine 5, and the two rope guiding grooves 5 are connected with the hoisting rope 5 and extend out of the hoisting machine 5, and the end parts are connected with the hoisting rope 5 to form a hoisting rope reel 5, and the hoisting machine is connected with the hoisting rope 5; the two sides of the protection table 1 in the width direction are alternately provided with supporting mechanisms 2, each supporting mechanism 2 comprises a swing arm 11, a guide wheel 12, a limit bolt 13, a limit plate 14, a connecting arm 15, a mounting arm 16, a tension spring 17, a pawl 18, an electric push rod 19, a supporting rod 20, a guide sleeve 21 and a supporting rod locking screw 22, the guide sleeve 21 is welded and fixed at the bottom of the frame of the protection table 1 and is perpendicular to the length direction of the protection table 1, the supporting rod 20 with a square section is adaptively inserted into a square inner hole of the guide sleeve 21, a supporting rod locking screw 22 is arranged in a threaded hole of the guide sleeve 21, and the front end of the supporting rod locking screw 22 is tightly propped against the outer surface of the supporting rod 20; the guide wheels 12 are arranged at the upper end and the lower end of the outer side of the swing arm 11, the middle part of the inner side of the swing arm 11 is vertically fixed with a connecting arm 15, the end part of the connecting arm 15 is inserted into a U-shaped opening at the front end of the support rod 20 and hinged with the support rod 20 together through a pin shaft, the upper surface and the lower surface of the front part of the support rod 20 are fixedly provided with a limiting plate 14, a limiting bolt 13 is screwed in a threaded hole of the limiting plate 14, the end part of a threaded rod of the limiting bolt 13 points to the back of the swing arm 11, and the swing angle of the swing arm 11 is limited by the abutting of the limiting bolt 13 when the swing arm 11 swings; a transverse installation arm 16 is fixed at the rear of the lower part of the swing arm 11, an L-shaped pawl 18 is hinged on the installation arm 16, a tension spring 17 is pulled between the pawl 18 and the swing arm 11, and the movable end of the pawl 18 extends outwards from the lower side of the swing arm 11; the electric push rod 19 is hinged on the mounting arm 16, the connecting block 25 is hinged on the pawl 18, a vertical sliding groove is formed in the connecting block 25, a push rod of the electric push rod 19 is inserted into the sliding groove of the connecting block 25, a front adjusting nut 27 and a rear adjusting nut 26 are correspondingly arranged on the push rod of the electric push rod 19 at the front and rear positions of the connecting block 25, a distance is reserved between the front adjusting nut 27 and the rear adjusting nut 26, when the electric push rod 19 stretches, a clearance still exists between the front adjusting nut 27 and the connecting block 25 after the movable end of the pawl 18 abuts against the inner wall of an elevator shaft, the phenomenon that the pawl 18 cannot be completely released due to interference of the electric push rod 19 is avoided, the balancing weight 8 is fixed on the bottom surface of the frame of the protection table 1, and the gravity center of the whole protection platform is located near the vertical line where the rope guide sleeve 9 is located.

The two sides of the frame of the protection table 1 along the length direction are channel steels 23, and the opening directions of the channel steels 23 at the two sides are inward; the telescopic auxiliary table 3 is formed by laying steel plates on a rectangular frame; the two sides of the telescopic auxiliary table 3 are adaptively inserted into a track formed by inner grooves of channel steel 23 on two sides of the protective table frame, an auxiliary table set screw 24 is screwed into a threaded hole of the channel steel 23, the screw rod end of the auxiliary table set screw 24 is tightly propped against the frame of the telescopic auxiliary table 3 to fix the telescopic auxiliary table, and auxiliary table side wheels 4 are alternately arranged on the outer side of the telescopic auxiliary table 3.

When the elevator is used, the elevator is transported to the bottom of an elevator shaft, the position of the supporting rod 20 is adjusted according to the size of the elevator shaft, the guide wheel 12 is close to the inner wall of the elevator shaft, the expansion and contraction amount of the expansion and contraction auxiliary table 3 is adjusted, and the lifting rope 5 is hung on a high cross beam through the hook 31; when the electric push rod 19 is retracted to draw the pawl 18 in a contracted state, the winch 7 can drive the protection platform 1 to lift to a required position, then the electric push rod 19 is extended, the pawl 18 swings outwards under the action of the tension spring 17 and abuts against the wall of the elevator shaft, the guide wheel 12 at the upper end of the swing arm 11 is forced to abut against the wall of the elevator shaft outwards, the spike part at the lower end of the pawl 18 is inserted into the wall of the elevator shaft to be held, and the protection platform 1 stably stops at the required position in the elevator shaft under the double actions of the lifting rope 5 and the pawl 18.

Claims (9)

1. The utility model provides a liftable elevator shaft operation protection platform, includes the protection platform of a rectangle, and the protection platform comprises the frame that the section bar is constituteed and lay its upper surface's steel sheet, its characterized in that: the two sides of the protection table (1) in the length direction are provided with telescopic and lockable telescopic auxiliary tables (3), the middle part of the protection table (1) is provided with a rope outlet hole, a rope guiding sleeve (9) fixed on the frame of the protection table (1) is arranged on the rope outlet hole, a winch (7) is fixedly arranged at the bottom of the protection table (1), a hoisting rope (5) is wound on a winding drum of the winch (7), and the end part of the hoisting rope (5) penetrates through the rope guiding sleeve (9) to extend out above the protection table (1) and is connected with a hook (31); the utility model provides a protection platform (1) width direction's both sides limit is provided with supporting mechanism (2) at intervals, supporting mechanism (2) have relative protection platform (1) adjustable distance and limited wobbling swing arm (11), upper and lower both ends in swing arm (11) outside are provided with leading wheel (12), articulated one on supporting mechanism (2) have pawl (18) of outside swing trend under extension spring (17) effect its lower extreme, the lower extreme of pawl (18) is equipped with spike portion, supporting mechanism (2) are articulated in addition have electric putter (19), the pole portion and the pawl (18) of electric putter (19) are connected.

2. The liftable elevator shaft work protection platform of claim 1, wherein: the supporting mechanism (2) comprises a swing arm (11), a guide wheel (12), a limit bolt (13), a limit plate (14), a connecting arm (15), a mounting arm (16), a tension spring (17), a pawl (18), an electric push rod (19), a supporting rod (20), a guide sleeve (21) and a supporting rod locking screw (22), wherein the guide sleeve (21) is welded and fixed at the bottom of a frame of the protection table (1) and is perpendicular to the length direction of the protection table (1), the supporting rod (20) with a square section is adaptively inserted into a square inner hole of the guide sleeve (21), the supporting rod locking screw (22) is arranged in a threaded hole of the guide sleeve (21), and the front end of the supporting rod locking screw (22) is tightly propped against the outer surface of the supporting rod (20); the guide wheels (12) are arranged at the upper end and the lower end of the outer side of the swing arm (11), the middle part of the inner side of the swing arm (11) is vertically fixed with a connecting arm (15), the end part of the connecting arm (15) is inserted into a U-shaped opening at the front end of the support rod (20) and hinged with the support rod (20) together through a pin shaft, the upper surface and the lower surface of the front part of the support rod (20) are fixedly provided with limit plates (14), limit bolts (13) are screwed in threaded holes of the limit plates (14), and the end part of a threaded rod of each limit bolt (13) points to the back part of the swing arm (11); a transverse installation arm (16) is fixed at the rear of the lower part of the swing arm (11), an L-shaped pawl (18) is hinged on the installation arm (16), a tension spring (17) is pulled between the pawl (18) and the swing arm (11), and the movable end of the pawl (18) protrudes outwards from the lower part of the swing arm (11); an electric push rod (19) is hinged on the mounting arm (16), and the electric push rod (19) is in limited movable connection with the pawl (18).

3. The liftable elevator shaft work protection platform of claim 2, wherein: the pawl (18) is hinged with a connecting block (25), the connecting block (25) is provided with a vertical chute, a push rod of the electric push rod (19) is inserted into the chute of the connecting block (25), a front adjusting nut (27) and a rear adjusting nut (26) are correspondingly arranged at the front and rear positions of the connecting block (25) on the push rod of the electric push rod (19), and a space is reserved between the front adjusting nut (27) and the rear adjusting nut (26).

4. The liftable elevator shaft work protection platform of claim 1, wherein: the two sides of the frame of the protection table (1) along the length direction are channel steels (23), and the opening directions of the channel steels (23) at the two sides are inward; the telescopic auxiliary table (3) is formed by laying steel plates on the rectangular frame; the two sides of the telescopic auxiliary table (3) are adaptively inserted into a track formed by inner grooves of channel steels (23) on two sides of the frame of the protection table (1), an auxiliary table set screw (24) is screwed into a threaded hole of the channel steel (23), and the end part of a screw rod of the auxiliary table set screw (24) is tightly propped against the frame of the telescopic auxiliary table (3) to fix the telescopic auxiliary table.

5. The liftable elevator shaft work protection platform of claim 1, wherein: the wheel alignment rope guiding mechanism (10) below the rope guiding sleeve (9) is fixed on the bottom surface of the frame of the protection platform (1), the wheel alignment rope guiding mechanism (10) is composed of a wheel frame (28), a wheel shaft (29) and rope guiding wheels (30), the wheel frame (28) is fixed on the frame of the protection platform (1), the wheel frame (28) is a rectangular frame, a pair of outer Zhou Kaozai of the rope guiding wheels (30) are located in the space in the middle of the wheel frame (28), the rope guiding wheels (30) are supported on the wheel frame (28) through the wheel shaft (29), and arc grooves on the peripheries of the two rope guiding wheels (30) are butted to form a guiding hole of the lifting rope (5).

6. The liftable elevator shaft work protection platform of claim 1, wherein: a balancing weight (8) is fixed on the bottom surface of the frame of the protection platform (1), and the gravity center of the whole protection platform is positioned on or near the vertical line where the rope guide sleeve (9) is positioned.

7. The liftable elevator shaft work protection platform of claim 1, wherein: the outer side edges of the telescopic auxiliary tables (3) are alternately provided with auxiliary table edge wheels (4).

8. The liftable elevator shaft work protection platform of claim 1, wherein: supporting legs (6) are correspondingly arranged at four corners of the bottom surface of the protection table (1).

9. The liftable elevator shaft work protection platform of claim 1, wherein: a rubber buffer pad is paved on the protective table (1).