CN212317444U

CN212317444U - Anti-toppling scaffold device for bridge construction

Info

Publication number: CN212317444U
Application number: CN202020705104.3U
Authority: CN
Inventors: 叶雨山; 吴靖江; 秦格斐; 梅杨杨; 胡连超
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-08
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a bridge construction anti-toppling scaffold device, which effectively solves the problem that a worker drives a scaffold to topple when losing feet and falling; the technical scheme includes that the scaffold comprises a scaffold, a vertical pipe is vertically arranged at the center of each of four edges of a working surface above the scaffold, a sliding rod is sleeved in each vertical pipe, a cross beam is arranged at the upper end of each sliding rod, the four cross beams are mutually independent, a reel is arranged below each sliding rod at the bottom of the working surface, a ratchet wheel is fixedly connected to a reel of the reel, a pawl is connected to the outer side wall of the reel, a connecting rod of the pawl is hinged to the reel, a torsion spring is arranged at the hinged position, a balancing weight is arranged below the scaffold, a rope is connected between each balancing weight and each reel, one end of each rope is wound on the reel, and; the utility model discloses can fall direction automatically regulated focus according to constructor, maintain the stability of scaffold frame, effectively prevent that the scaffold frame from empting.

Description

Anti-toppling scaffold device for bridge construction

Technical Field

The utility model relates to a bridge construction technical field specifically is anti-toppling scaffold device is under construction to bridge.

Background

Scaffolding refers to various supports erected on a construction site for workers to handle and solve vertical and horizontal transportation. During bridge construction, often can use higher scaffold, the workman is when the construction, for safety, often ties the safety belt in the scaffold crossbeam, but when the workman is out of the foot and falls, the safety belt can stimulate the crossbeam, makes the workstation focus skew, takes place great rocking, emptys even.

Disclosure of Invention

To the circumstances, for overcoming prior art's defect, the utility model provides a scaffold device is prevented empting in bridge construction can be according to the direction that the people dropped, and the focus of automatically regulated scaffold maintains the stability of scaffold, prevents effectively that the scaffold from empting.

The technical scheme for solving the problem is that the anti-toppling scaffold device for bridge construction comprises a scaffold, wherein a vertical pipe is vertically arranged at the center of each of four edges of a working surface above the scaffold, a sliding rod is sleeved in each vertical pipe, the sliding rods can slide up and down in the vertical pipes and can penetrate through the working surface, a cross beam is arranged at the upper end of each sliding rod, the cross beams are parallel to the four edges of the working surface, and the four cross beams are independent; a reel is arranged below each sliding rod at the bottom of the working face, a ratchet wheel is fixedly connected to a reel of the reel, a pawl is connected to the outer side wall of the reel, a connecting rod of the pawl is hinged to the reel, a torsion spring is arranged at the hinged position, so that the pawl and the ratchet wheel on one side of a hinged point are in a meshed state, and the connecting rod of each pawl is positioned right below the corresponding sliding rod on the other side of the hinged point; the below of scaffold frame is provided with the balancing weight, is connected with the rope between balancing weight and every reel, and the rope has one section to be the spring rope between balancing weight and reel, respectively installs a fixed pulley in the below of every reel on the scaffold frame, and the one end rolling of every rope is in the reel, and the fixed pulley connection is walked around to the other end on the balancing weight, and when the balancing weight suspends in midair in the scaffold frame, the focus of balancing weight and the subaerial projection coincidence of the focus of scaffold frame.

The utility model discloses can fall direction automatically regulated focus according to constructor, maintain the stability of scaffold frame, effectively prevent that the scaffold frame from empting.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a cross-sectional view taken along line a-a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 2.

Fig. 4 is an enlarged view of a portion C in fig. 3.

Fig. 5 is an enlarged view of a portion D in fig. 2.

Fig. 6 is an enlarged view of a portion E in fig. 3.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

The utility model comprises a scaffold 1, a vertical pipe 3 is vertically arranged at the center of each of four edges of a working surface 2 above the scaffold 1, a slide bar 5 is sleeved in each vertical pipe 3, the slide bar 5 can slide up and down in the vertical pipe 3 and can run through the working surface 2, a beam 4 is arranged at the upper end of each slide bar 5, the four edges of the beam 4 are parallel to the four edges of the working surface 2, and the four beams 4 are mutually independent; a reel 6 is arranged below each sliding rod 5 at the bottom of the working face 2, a ratchet wheel 7 is fixedly connected to a winding shaft of the reel 6, a pawl 8 is connected to the outer side wall of the reel 6, a connecting rod of the pawl 8 is hinged to the reel 6, a torsion spring is arranged at the hinged position, so that the pawl 8 and the ratchet wheel 7 on one side of the hinged point are in a meshed state, and the connecting rod of each pawl 8 is positioned right below the corresponding sliding rod 5 on the other side of the hinged point; scaffold frame 1's below is provided with balancing weight 12, be connected with rope 9 between balancing weight 12 and every reel 6, rope 9 has one section to be spring rope 11 between balancing weight 12 and reel 6, respectively install a fixed pulley 10 in scaffold frame 1 below of every reel 6, the one end rolling of every rope 9 is in reel 6, the other end is walked around fixed pulley 10 and is connected on balancing weight 12, when balancing weight 12 suspends in midair in scaffold frame 1, balancing weight 12's the focus and scaffold frame 1's the subaerial projection coincidence.

Each vertical pipe 3 is vertically arranged on the upper end surface of the working surface 2, a through hole is arranged right below each sliding rod 5 on the working surface 2, and the sliding rod 5 can penetrate through the through hole on the working surface 2 to press down the ratchet rod of the pawl 8.

A rectangular guardrail 13 is arranged above the working face 2, and the guardrail 13 is connected with the vertical pipe 3, so that the stability of the vertical pipe 3 is enhanced.

Each slide bar 5 on be provided with a dog 14, respectively be provided with two stopper 15 on every riser 3 inside wall, two stopper 15 are located the top and the below of dog 14 respectively, be provided with pressure spring 16 between dog 14 and the stopper 15 of below, pressure spring 16 gives dog 14 upwards power, makes dog 14 and the stopper 15 of top contact, leaves the interval between dog 14 and the stopper 15 of below, makes slide bar 5 have enough gliding space to push down the connecting rod of pawl 8, makes pawl 8 and ratchet 7 not engaged with again.

Every riser 3 in the both sides of the sideline direction of working face 2 still should set up a pipe 17 respectively, pipe 17 is installed on working face 2 and is connected with rectangle guardrail 13, pipe 17 endotheca has montant 18, montant 18 can slide in pipe 17, the up end of montant 18 is connected with crossbeam 4, the lower terminal surface of montant 18 has the interval that enables slide bar 5 to have the sufficient space of gliding to push down the connecting rod of pawl 8 with working face 2, when the different positions of crossbeam 4 receive downward pressure, crossbeam 4 all keeps parallel with the sideline of the working face 2 that corresponds.

Balancing weight 12 be the cuboid, its up end center is provided with the through-hole, be provided with sleeve 19 under the through-hole, sleeve 19 fixed connection is on scaffold 1, there is the interval between sleeve 19 and the balancing weight 12, detachable dead lever 20 is equipped with in the sleeve 19, dead lever 20 can run through the through-hole of balancing weight 12, when scaffold 1 is in the moving state, dead lever 20 passes the through-hole cover of balancing weight 12 in sleeve 19, prevent that balancing weight 12 from rocking, when scaffold 1 is in the user state, pull out dead lever 20, make balancing weight 12 suspend in midair in scaffold 1.

When the scaffold is used, the scaffold is moved to a working position, before the scaffold is moved, the fixing rod 20 penetrates through the through hole of the counterweight block 12 and is sleeved in the sleeve 19, so that the counterweight block 12 is limited to move in the horizontal direction, after the scaffold 1 is moved to the working position, the fixing rod 20 is pulled out, because the pawl 8 and the ratchet wheel 7 are in a meshed state, the pawl 8 limits the ratchet wheel 7 to rotate towards the direction of loosening the rope 9, the ratchet wheel 7 is fixedly connected to the reel of the reel 6, so that the reel 6 is limited to rotate towards the direction of loosening the rope 9, namely the reel 6 does not loosen the rope 9, the rope 9 is connected with the counterweight block 12, so that the counterweight block 12 is suspended below the scaffold 1 by the four ropes 9, a worker climbs to the working surface, a safety belt is tied to the working surface 2 for construction, in the construction process, if the worker is out of work, the safety belt falls from the working surface, when a person falls, the other end of the safety belt is driven to cross the beam 4, the person can press down the beam 4 on the falling side of the person after falling, the beam 4 moves downwards so as to drive the slide rod 5 to move downwards, the slide rod 5 presses down the ratchet rod of the pawl 8, the connecting rod of the pawl 8 moves downwards, the pawl 8 is hinged to the reel 6, the pawl 8 moves upwards and is not meshed with the ratchet wheel 7, so that the ratchet wheel 7 can rotate freely, the ratchet wheel 7 is fixed with the reel of the reel 6, the reel of the reel 6 can rotate freely, one end of the rope 9 is wound on the reel of the reel 6, the other end of the rope 9 is connected with the counterweight block 12, the counterweight block 12 is suspended in the center of the scaffold 1, the counterweight block 12 gives a pulling force to the rope 9, so that the rope 9 on the side can pull the reel of the reel 6 to rotate, the rope 9 is lengthened until the reel 6 on the side is not, that is, the rope 9 on the side does not provide any more pulling force to the weight block 12, the spring rope 11 is connected in the middle of the rope 9, so the rope 9 has elasticity, the weight block 12 is suspended on the scaffold 1 by the pulling force of the rope 9 on the other three sides, the weight block 12 moves to the opposite side of the falling side under the pulling force of the rope 9 on the other three sides of the falling side, the gravity center of the scaffold 1 moves to the opposite side of the falling side, so the scaffold 1 is kept stable, the falling is prevented, after the falling person is rescued, the beam 4 resets under the action of the spring 16, the slide rod 5 resets, the slide rod 5 does not press the pawl 8 any more, the pawl 8 also resets, due to the characteristics of the pawl 8 and the ratchet 7, the ratchet 7 and the reel 6 can rotate in the direction of contracting the rope 9, the reel 6 on the falling side rotates, the rope 9 contracts, the pulling force of the rope 9 to the, and stopping rotating the reel 6 until the gravity center of the counterweight block 12 is superposed with the projection of the gravity center of the scaffold 1 on the ground, and recovering the scaffold 1 to the usable state.

After the construction is finished, the fixing rod 20 penetrates through the through hole of the counterweight block 12 and is sleeved in the sleeve 19, and the scaffold 1 is moved to a storage position.

Claims

1. The bridge construction anti-toppling scaffold device comprises a scaffold (1) and is characterized in that a vertical pipe (3) is vertically arranged at the center of each of four edges of a working surface (2) above the scaffold (1), a sliding rod (5) is sleeved in each vertical pipe (3), each sliding rod (5) can slide up and down in each vertical pipe (3) and can penetrate through the working surface (2), a cross beam (4) is arranged at the upper end of each sliding rod (5), the cross beams (4) are parallel to the four edges of the working surface (2), and the four cross beams (4) are independent of each other; a reel (6) is arranged below each sliding rod (5) at the bottom of the working face (2), a ratchet wheel (7) is fixedly connected to a reel shaft of the reel (6), a pawl (8) is connected to the outer side wall of the reel (6), a connecting rod of the pawl (8) is hinged to the reel (6), a torsion spring is arranged at the hinged position, the pawl (8) on one side of a hinged point is enabled to be in a meshed state with the ratchet wheel (7), and the connecting rod of each pawl (8) is located right below the corresponding sliding rod (5) on the other side of the hinged point; the below of scaffold frame (1) is provided with balancing weight (12), be connected with rope (9) between balancing weight (12) and every reel (6), rope (9) have one section to be spring rope (11) between balancing weight (12) and reel (6), respectively install a fixed pulley (10) in the below of every reel (6) on scaffold frame (1), the one end rolling in reel (6) of every rope (9), the other end is walked around fixed pulley (10) and is connected on balancing weight (12), when balancing weight (12) suspend in midair in scaffold frame (1), the focus of balancing weight (12) and the subaerial projection coincidence of the focus of scaffold frame (1).

2. The anti-toppling scaffold device for bridge construction according to claim 1, characterized in that each of the risers (3) is vertically installed on the upper end surface of the working surface (2), and a through hole is provided on the working surface (2) right below each slide bar (5).

3. The anti-toppling scaffold device for bridge construction is characterized in that a rectangular guardrail (13) is arranged above the working surface (2), and the guardrail (13) is connected with the vertical pipe (3).

4. The bridge construction anti-toppling scaffold device according to claim 1, wherein each slide rod (5) is provided with a stopper (14), each inner side wall of each vertical pipe (3) is provided with two stoppers (15), the two stoppers (15) are respectively positioned above and below the stopper (14), a pressure spring (16) is arranged between the stopper (14) and the lower stopper (15), and a gap is reserved between the stopper (14) and the lower stopper (15).

5. The anti-toppling scaffold device for bridge construction according to claim 3, wherein each of the vertical pipes (3) is further provided with a circular pipe (17) on each of two sides of the side line direction of the working surface (2), the circular pipes (17) are installed on the working surface (2) and connected with the rectangular guardrail (13), the vertical rods (18) are sleeved in the circular pipes (17), the vertical rods (18) can slide in the circular pipes (17), the upper end surfaces of the vertical rods (18) are connected with the cross beams (4), and the lower end surfaces of the vertical rods (18) and the working surface (2) are provided with intervals which can enable the sliding rods (5) to have enough sliding spaces to press down the connecting rods of the pawls (8).

6. The anti-toppling scaffold device for bridge construction as claimed in claim 1, wherein the weight block (12) is a cuboid, a through hole is formed in the center of the upper end face of the weight block, a sleeve (19) is arranged right below the through hole, the sleeve (19) is fixedly connected to the scaffold (1), a gap is formed between the sleeve (19) and the weight block (12), a detachable fixing rod (20) is arranged in the sleeve (19), and the fixing rod (20) can penetrate through the through hole of the weight block (12).