CN209855194U

CN209855194U - Portable construction scaffold

Info

Publication number: CN209855194U
Application number: CN201920078266.6U
Authority: CN
Inventors: 张晓刚; 庞富刚; 赵福龙; 王红明; 王明; 王晓明; 张莉; 常书瑗
Original assignee: Tianjin Xintongyi Technology Co Ltd
Current assignee: Tianjin Xintongyi Technology Co Ltd
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2019-12-27
Anticipated expiration: 2029-01-17

Abstract

The utility model discloses a portable construction scaffold, which comprises a main frame, wherein the main frame comprises an inner side vertical rod, an outer side vertical rod, a cross rod and an oblique chord rod which connect the inner side vertical rod and the outer side vertical rod together, and a horizontal truss is arranged below the main frame; a slide rail is welded on the inner side vertical rod, and a plurality of anti-falling baffles are arranged on the slide rail; an anti-falling device and a fixed connecting device are arranged between the inner side vertical rod and the building wall; the fixed connecting device is arranged below the main frame; one end of the anti-falling device is fixed on a building wall, and the other end of the anti-falling device is connected with the slide rail in a sliding manner; one of the anti-falling devices is provided with an electric elevator; the electric lifter is connected with a lifting hanger plate through a steel wire rope; the lifting hanging plate is connected with the slide rail; and a walkway plate is arranged above the cross rod. This portable construction scaffold frame factor of safety, installation and dismantlement efficiency, and building wall between be connected the steadiness height.

Description

Portable construction scaffold

Technical Field

The utility model relates to a construction scaffolding field especially relates to a portable construction scaffold.

Background

The portable scaffold is a novel scaffold system which is developed in recent years, is mainly applied to a high-rise shear wall type building, can ascend or descend upwards along a building, is not limited by height, greatly saves manpower, material resources and financial resources, and obviously improves the safety factor. However, the existing portable scaffold still has the following problems: firstly, the connection stability of the scaffold and the wall is to be enhanced; secondly, the slide rail and the anti-falling device need to penetrate through the slide rail one by one in the installation process, so that the installation efficiency is not high; thirdly, the fall protection device cannot function at any time during the actual operation, and requires specific conditions, for example, in the patent document published by the chinese patent document with the application number "201220187354.8" and the name "attached lifting scaffold", the description of the fall protection device is as follows: in the rising stage, the adjustable limiting jacking device always leans against the sliding rail under the action of spring force to play a role in preventing falling. In the descending process, the anti-falling steel wire rope tensioning adjustable limiting jacking device leaves the sliding rail, then a lock bolt at the lower end of the anti-falling steel wire rope is hooked on the electric hoist, and the frame body on the vertical main frame can descend smoothly in the normal descending process. When the support body breaks down, when the electric hoist loses weight, the anti-falling steel wire rope is triggered to be loose, the adjustable limiting ejector is instantly leaned against the sliding rail under the action of the tensioning spring, and the ejector head enters the position between the anti-falling stop rods to support and prop the anti-falling stop rods, so that the aim of preventing falling is fulfilled. As can be known from the document, in the process of lifting, the jack is in a working state, which increases the resistance of the scaffold in the lifting process and brings a large load to the electric hoist. In addition, in the descending process, the working state of the supporting device is determined only by the connection relation between the steel wire rope and the electric hoist, and certain potential safety hazards exist. Based on this, the utility model provides a new portable construction scaffold frame for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable construction scaffold, solve scaffold frame connection stability not high, installation effectiveness remain to strengthen and reduce the problem of lift process potential safety hazard.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a portable construction scaffold, which comprises a main frame, wherein the main frame comprises an inner side vertical rod, an outer side vertical rod, a cross rod and an oblique chord rod which connect the inner side vertical rod and the outer side vertical rod together, and a horizontal truss is arranged below the main frame; a slide rail is welded on the inner side vertical rod, and a plurality of anti-falling baffles are uniformly arranged on the slide rail; an anti-falling device and a fixed connecting device are arranged between the inner side vertical rod and the building wall; the fixed connecting device is arranged below the main frame; the anti-falling devices are uniformly distributed between the inner vertical rods and the building wall, one end of each anti-falling device is fixed on the building wall, and the other end of each anti-falling device is connected with the slide rail in a sliding manner; one of the anti-falling devices is provided with an electric elevator; the electric lifter is connected with a lifting hanger plate through a steel wire rope; the lifting hanging plate is connected with the slide rail; a walkway plate is arranged above the cross rod;

the anti-falling device comprises a wall-attached support fixed on a building wall; the wall-attached support is connected with a base; one end of the base is provided with a rotating shaft, and the other end of the base is provided with a guide wheel; the middle position of the rotating shaft is fixedly connected with a supporting device, and the shaft end of the rotating shaft is fixedly connected with a micro motor; the guide wheel is arranged in the base in a manner of moving left and right and is fixedly connected with a pressing plate; the outer side face of the other end of the pressing plate is fixedly connected with a key, and the inner side face of the other end of the pressing plate is fixedly connected with a return spring; a guide sliding groove matched with the guide wheel is arranged on the sliding rail; a speed measuring sensor is arranged below the base;

the fixed connecting device comprises a T-shaped support fixedly connected to a building wall, and a U-shaped notch is formed in the middle port of the T-shaped support; the inner part of the U-shaped groove is fixedly connected with a suspension springboard; the other end of the suspension springboard is fixedly connected with the walkway board at the lower position of the main frame; and an upper auxiliary rib plate and a lower auxiliary rib plate are arranged on the T-shaped support.

Further, the number of the main frames is at least two; the periphery of the main frame is provided with a protective device; the main frames are connected together through the horizontal truss, the walkway plate and the protective device.

Furthermore, the wall-attached support is fixed on the building wall body through expansion bolts.

Furthermore, the specific cross section of the wall-attached support is U-shaped, the open end of the wall-attached support is positioned at the outer side of the building wall, and triangular rib plates are arranged above the left strip-shaped plate and the right strip-shaped plate; the left strip-shaped plate and the right strip-shaped plate are fixedly connected through a locking bolt.

Furthermore, the supporting device comprises an adjustable screw rod, a top head arranged at the upper end of the adjustable screw rod and matched with the anti-falling baffle, and a threaded sleeve arranged at the lower end of the adjustable screw rod and sleeved on the adjustable screw rod; the top is used for clamping the anti-falling baffle; the lower side surface of the adjustable lead screw is fixedly connected to the rotating shaft.

Furthermore, the T-shaped support is fixed in the building wall body through expansion bolts.

Furthermore, the U-shaped notch and the suspension springboard are fixedly connected together through a locking bolt.

Furthermore, the suspension springboard and the walkway board are fixedly connected together through a plurality of self-tapping locking screws.

Furthermore, the T-shaped support and the auxiliary rib plate are of an integrally formed structure.

Compared with the prior art, the utility model discloses a beneficial technological effect:

in this use neotype anti-falling device, replaced traditional stay cord and reset spring's effect with micro motor to detect the state that the scaffold frame rises and the gliding through speed sensor, improve the detection to the scaffold frame rises or the decline state, and in time stop, factor of safety improves. In addition, the supporting device does not act on the anti-falling baffle plate in the ascending process, so that the resistance in the ascending process is reduced, and the output power of the electric elevator is relatively reduced. And through pressing the button downwards, compression spring for the leading wheel leaves the slide rail under the effect of clamp plate force, avoids wearing in and wearing out all anti-falling device from the top of slide rail, has made things convenient for constructor to the installation and the dismantlement of scaffold frame, improves installation and dismantlement efficiency. In the fixed connecting device, the suspension springboard is fixedly connected in the U-shaped notch of the T-shaped support, so that the connecting strength of the suspension springboard is improved and the safety of the scaffold in the construction process is further ensured compared with the hinge connection.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic view of the overall structure of the portable scaffold for building construction of the present invention;

FIG. 2 is a front view of the anti-falling device of the present invention;

FIG. 3 is a partial top view of the anti-falling device of the present invention;

FIG. 4 is a sectional view of the anti-falling device of the present invention;

FIG. 5 is a front view of the fixing and connecting device of the present invention;

description of reference numerals: 1. a main frame; 101. an inner side vertical bar; 102. an outer side vertical rod; 103. a cross bar; 104. a diagonal chord member; 105. a horizontal truss; 2. the anti-falling device; 201. a guide wheel; 202. pressing a key; 203. a rotating shaft; 204. a speed measuring sensor; 205. lifting lugs; 206. a wall-attached support; 207. a rib plate; 208. an expansion bolt; 209. a supporting device; 2091. ejecting the head; 2092. an adjustable lead screw; 2093. a threaded sleeve; 210. locking the bolt; 211. a micro motor; 212. a return spring; 213. pressing a plate; 214. a base; 3. a slide rail; 301. an anti-falling baffle plate; 302. a guide chute; 4. an electric hoist; 5. a wire rope; 6. lifting the hanger plate; 7. a walkway plate; 8. a fixed connection device; 801. an auxiliary rib plate; 802. a U-shaped notch; 803. self-tapping locking screws; 804. a suspension gangboard; 805. t-shaped support.

Detailed Description

As shown in fig. 1, a portable scaffold for building construction comprises a main frame 1, wherein the number of the main frame 1 is at least two, the main frame 1 comprises an inner side vertical rod 101, an outer side vertical rod 102, and a cross rod 103 and a diagonal chord 104 which are arranged between the inner side vertical rod and the outer side vertical rod, the cross rods are fixedly connected together through bolts, so that a whole is formed, and a protective device is arranged around the whole. A horizontal truss 105 is installed below the main frame 1, and a plurality of the main frames 1 are fixedly connected together through the horizontal truss 105 and a protection device. The welding has slide rail 3 on the inboard montant 101, even installing a plurality of on the slide rail 3 prevents weighing down baffle 301. An anti-falling device 2 and a fixed connecting device 8 are arranged between the inner side vertical rod 101 and the building wall. The fixed connecting device 8 is arranged below the main frame 1 and used for fixing the hand rack on a building wall. The anti-falling device 2 is provided with a plurality of inner side vertical rods 101 which are uniformly distributed between the inner side vertical rods and the building wall, and not only plays a supporting role, but also plays a role in preventing the scaffold from falling down. The anti-falling device 2 is connected to the building wall through a bolt at one end and is connected to the sliding rail 3 at the other end in a sliding manner, and the anti-falling device can move up and down on the sliding rail 3 under the condition that the anti-falling device is not required to be prevented from falling. In addition, one of the anti-falling devices 2 is provided with an electric elevator 4, the electric elevator 4 is connected with a lifting hanger plate 6 through a steel wire rope 5, the lifting hanger plate 6 is connected with the slide rail 3, the electric elevator 4 is started, and the whole scaffold structure can be lifted through the acting force of the steel wire rope 5 on the lifting hanger plate 6, which is the prior art and is not repeated herein. A walkway plate 7 is provided above the cross bar 105 for temporary passage and construction site for constructors during construction.

The anti-falling device 2 comprises a wall-attached support 206 fixed on a building wall, the wall-attached support 206 is fixed on the building wall through an expansion bolt 208, in addition, the specific cross section of the wall-attached support 206 is U-shaped, the opening end is positioned at the outer side of the building wall, and triangular rib plates 207 are arranged above the left strip plate and the right strip plate for enhancing the connection stability and ensuring the support strength of the wall-attached support 206; and attach two bar boards about wall support 206 and pass through lock bolt 210 fixed connection and be in the same place, improved and attached wall support 206 steadiness. The wall-attached support 206 is connected with a base 214 through bolts, one end of the base 214 is provided with a rotating shaft 203, and the other end of the base 214 is provided with a guide wheel 201. Wherein, the pivot 203 intermediate position fixedly connected with props up the ware 209, the axle head fixedly connected with micro motor 211 of pivot 203, micro motor 211 starts for the certain angle of pivot 203 rotation (set for according to propping up the ware 209 and preventing weighing down the required angle of baffle 301 meshing), guarantee to prop up the ware 209 and prevent weighing down the baffle 301 and mesh mutually. The supporting device 209 comprises an adjustable lead screw 2092, and a supporting head 2901 which is arranged at the upper end of the adjustable lead screw 2092 and is matched with the anti-falling baffle plate 301, and is used for supporting the anti-falling baffle plate 301. A threaded sleeve 2093 which is arranged at the lower end of the adjustable lead screw 2092 and sleeved on the adjustable lead screw 2092, the threaded sleeve 2093 is rotated, and the length of the supporting device 209 can be adjusted; the lower side surface of the adjustable lead screw 2092 is fixedly connected to the rotating shaft 203 and rotates along with the rotation of the rotating shaft 203. The guide wheel 201 can move left and right and is arranged in the base 214, and is fixedly connected with a pressing plate 213, namely the pressing plate 213 moves left and right to drive the guide wheel 201 to move left and right; the outer side surface of the other end of the pressing plate 213 is fixedly connected with a key 202 for controlling the pressing plate 213 to move, and the inner side surface is fixedly connected with a return spring 212, so that the pressing plate 213 is ensured to be restored when no acting force is applied to the key 202. A guide sliding groove 302 matched with the guide wheel 201 is formed in the sliding rail 3, and the guide wheel 201 moves up and down in the guide sliding groove 302. A speed measuring sensor 204 is installed below the base 214 and used for monitoring the descending speed of the slide rail 3, transmitting a signal to the controller, and controlling the working state of the micro motor 211 by the controller.

The fixed connecting device 8 comprises a T-shaped support 805 fixedly connected to the building wall through an expansion bolt 208, a U-shaped notch 802 is formed in the middle port of the T-shaped support 805, and the length of the U-shaped notch 802 is set according to actual needs. The inside of the U-shaped notch 802 is fixedly connected with a suspension springboard 804 through a locking bolt 210, so that the connection strength and stability of the T-shaped support 805 and the suspension springboard 804 are ensured. The other end of the suspension gangboard 804 is fixedly connected with the walkway plate 7 at the lower position of the main frame 1 through a plurality of self-tapping locking screws 803. And two upper and lower auxiliary ribbed plates 801 are arranged on the T-shaped support 805, so that the connection strength between the T-shaped support 805 and a building wall is enhanced, and the T-shaped support 805 and the auxiliary ribbed plates 801 are of an integrally formed structure.

The action process of the utility model is as follows:

firstly, the anti-falling device 2 and the fixed connecting device 8 are bolted on the building wall at a certain distance, and then the main frame 1, the anti-falling device 2 and the fixed connecting device 8 are installed together. In the actual installation process, as long as a constructor presses down the key 202 in the anti-falling device 2, the pressing plate 213 drives the guide wheel 201 to open towards both sides of the base 214, the slide rail 3 is placed between the two, and then the key 202 is released, so that the guide wheel 201 is clamped in the guide chute 302 under the action of the return spring 212. The fixed connecting device 8 is fixedly connected with the walkway plate 7 on the main frame 1 through the suspension springboard 804. The lifting hanger plate 6 is fixedly arranged on the slide rail 3.

Secondly, each connection part is inspected, and the phenomenon of unstable connection is avoided. Meanwhile, the installation conditions of the electric elevator 4, the steel wire rope 5, the lifting hanger plate 6, the micro motor 211 and the speed measuring sensor 204 are checked, and the normal use of the electric elevator, the steel wire rope 5, the lifting hanger plate 6, the micro motor 211 and the speed measuring sensor 204 is ensured. In addition, the length of the supporting device 209 is adjusted through the adjustable lead screw 2092, and the angle of the rotation of the supporting device until the falling prevention baffle 301 moves is transmitted to the controller, so that the movement stroke of the micro motor 211 is set to be a parameter. And (5) checking the condition of the line to ensure that the line has no damage, short circuit or open circuit.

And finally, adjusting the ascending and descending of the scaffold according to the construction progress. When the scaffold is required to be lifted, the micro motor 211 is started, so that the supporting jacks 209 leave the anti-falling baffle 301; then, starting the electric lifter 4, driving the lifting hanger plate 6 to move upwards under the action of the steel wire rope 5, further driving the slide rail 3 to move upwards, and realizing the upward movement of the whole scaffold; when the anti-falling baffle 301 moves to a specified position, the micro motor 211 is started to rotate the supporting device 209 to the specified position between the closing of the electric lifter 4, and the anti-falling baffle 301 is positioned in the top 2091 at the moment that the scaffold stops rising. When the scaffold is required to descend, the micro motor 211 is started, so that the jacking device 209 leaves the anti-falling baffle 301; the scaffold frame is descended by means of self gravity, the electric lifter 4 is started, under the action of the steel wire rope 5, the lifting hanger plate 6 is lifted to provide an upward force for the scaffold frame, so that the scaffold frame stably descends at a certain speed, and when the scaffold frame descends to a specified position, the micro motor 211 is started, so that the anti-falling baffle plate 301 is positioned in the top 2091 and does not descend any more. In the whole process, the speed measuring sensor 204 monitors the lifting speed of the scaffold all the time, once the lifting speed exceeds the specified speed, a signal is given to the controller, and then the controller can control the micro motor 211 to start, so that the anti-falling device 2 is started instantly, and potential safety hazards are avoided.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A portable scaffold for building construction comprises a main frame (1), wherein the main frame (1) comprises an inner side vertical rod (101), an outer side vertical rod (102), a cross rod (103) and an oblique chord rod (104) which connect the inner side vertical rod and the outer side vertical rod together, and a horizontal truss (105) is arranged below the main frame (1); the inner side vertical rod (101) is welded with a sliding rail (3), and a plurality of anti-falling baffles (301) are uniformly arranged on the sliding rail (3); an anti-falling device (2) and a fixed connecting device (8) are arranged between the inner side vertical rod (101) and the building wall; the fixed connecting device (8) is arranged below the main frame (1); the plurality of anti-falling devices (2) are uniformly distributed between the inner side vertical rod (101) and the building wall, one end of each anti-falling device is fixed on the building wall, and the other end of each anti-falling device is connected with the sliding rail (3) in a sliding manner; one of the anti-falling devices (2) is provided with an electric elevator (4); the electric lifter (4) is connected with a lifting hanger plate (6) through a steel wire rope (5); the lifting hanger plate (6) is connected with the slide rail (3); a walkway plate (7) is arranged above the cross bar (103);

the method is characterized in that: the anti-falling device (2) comprises a wall-attached support (206) fixed on a building wall; the wall-attached support (206) is connected with a base (214); one end of the base (214) is provided with a rotating shaft (203), and the other end is provided with a guide wheel (201); the middle position of the rotating shaft (203) is fixedly connected with a supporting device (209), and the shaft end of the rotating shaft (203) is fixedly connected with a micro motor (211); the guide wheel (201) is arranged in the base (214) in a manner of moving left and right and is fixedly connected with a pressing plate (213); the outer side surface of the other end of the pressing plate (213) is fixedly connected with a key (202), and the inner side surface is fixedly connected with a return spring (212); a guide sliding groove (302) matched with the guide wheel (201) is arranged on the sliding rail (3); a speed measuring sensor (204) is arranged below the base (214);

the fixed connecting device (8) comprises a T-shaped support (805) fixedly connected to a building wall, and a U-shaped notch (802) is formed in the middle port of the T-shaped support (805); a suspension springboard (804) is fixedly connected inside the U-shaped notch (802); the other end of the suspension springboard (804) is fixedly connected with the walkway board (7) at the lower position of the main frame (1); an upper auxiliary rib plate and a lower auxiliary rib plate (801) are arranged on the T-shaped support (805).

2. The portable construction scaffold of claim 1, wherein: the number of the main frames (1) is at least two; the periphery of the main frame (1) is provided with a protective device; the main frames (1) are connected together through the horizontal truss (105), the walkway plate (7) and a protection device.

3. The portable construction scaffold of claim 1, wherein: the wall-attached support (206) is fixed on the building wall through an expansion bolt (208).

4. The portable construction scaffold of claim 3, wherein: the specific cross section of the wall-attached support (206) is U-shaped, the open end of the wall-attached support is positioned at the outer side of the building wall, and triangular rib plates (207) are arranged above the left strip-shaped plate and the right strip-shaped plate; the left strip-shaped plate and the right strip-shaped plate are fixedly connected through a locking bolt (210).

5. The portable construction scaffold of claim 1, wherein: the jacking device (209) comprises an adjustable lead screw (2092), a jacking head (2091) arranged at the upper end of the adjustable lead screw (2092) and matched with the anti-falling baffle plate (301), and a threaded sleeve (2093) arranged at the lower end of the adjustable lead screw (2092) and sleeved on the adjustable lead screw (2092); the top head (2091) is used for clamping the anti-falling baffle plate (301); the lower side surface of the adjustable lead screw (2092) is fixedly connected to the rotating shaft (203).

6. The portable construction scaffold of claim 1, wherein: the T-shaped support (805) is fixed in the building wall body through an expansion bolt (208).

7. The portable construction scaffold of claim 1, wherein: the U-shaped notch (802) and the suspension springboard (804) are fixedly connected together through a locking bolt (210).

8. The portable construction scaffold of claim 1, wherein: the suspension gangboard (804) and the walkway plate (7) are fixedly connected together through a plurality of self-tapping locking screws (803).

9. The portable construction scaffold of claim 1, wherein: the T-shaped support (805) and the auxiliary rib plate (801) are of an integrally formed structure.