CN219771614U - Safety device on tower crane big arm - Google Patents

Abstract

The utility model discloses a safety device on a tower crane boom, which belongs to the field of tower cranes and comprises a fixing piece and a plurality of guide boxes, wherein the guide boxes are U-shaped, the guide boxes are in one-to-one correspondence with upper chords of the tower crane booms and form a plurality of sliding spaces with the upper chords of the tower crane booms, the guide boxes are arranged on the side surfaces of the upper chords of the tower crane booms and are fixedly connected with the upper chords of the tower crane booms, guide holes communicated with the sliding spaces are formed in the guide boxes, the guide holes in the guide boxes are mutually corresponding, the fixing piece comprises a safety rope and a guide block, the guide block slides in the sliding space, guide cones are fixed at two ends of the guide block, the safety rope penetrates through the guide holes and is connected with the guide block in a detachable mode, and the length of the guide block is larger than the distance between two adjacent tower crane booms.

Description

Safety device on tower crane big arm

Technical Field

The utility model relates to the field of tower cranes, in particular to a safety device on a large arm of a tower crane.

Background

The tower crane is the most commonly used hoisting equipment on the building site, namely a tower crane, because the work needs an operator to walk back and forth on a large arm to carry out the operation of installation, dismantling and maintenance on the large arm of the tower crane, but the large arm of the tower crane is formed by a steel structure, a main chord member is connected by a plurality of steel structures, the distance of a diagonal bracing connecting rod is too short, a safety belt is required to be continuously hung when the operator walks on the large arm of the tower crane, the safety belt is required to be hung again basically every two or three steps, the work is very unfavorable, and the operator forgets to loosen the safety belt when concentrating on the work, so that the safety belt is pulled to cause unbalance accidents.

The utility model patent of application number 202023164753.6 discloses a tower crane boom walking safety rope tying and hanging protection device, which comprises a safety rope, a fixing component and a hook component; the fixing assembly at least comprises two fixing rings, the two fixing rings are respectively and fixedly connected with two sides of the tower crane large arm, and two ends of the safety rope are respectively and fixedly connected with the two fixing rings of the fixing assembly; the hook assembly comprises a plurality of hook seats, the hook seats are fixedly connected to the tower crane boom, the hook seats are located between two fixing rings of the fixing assembly, the hook seats are sequentially distributed at intervals, the distribution trend of the hook seats is consistent with the length direction of the safety rope, the hook seats are provided with hook holding grooves, the hook holding grooves penetrate through two sides of the hook seats, and the hook holding grooves of the hook seats are matched with the safety rope.

Through above-mentioned technical scheme, replace a plurality of segmentation fixed points between two retainer plates through a plurality of couple seats of couple subassembly, installation and maintenance personnel are when certain couple seat is passed through, first with the safety rope with couple seat separation, need not stride across the couple seat under the prerequisite of connecting hasp and safety rope separation, stride across couple seat back again with safety rope and couple seat cooperation, installation and maintenance personnel's connection hasp is fixed on the safety rope all the time, the safety risk is significantly reduced, but the operation personnel is when walking the operation back and forth in different positions on the tower crane big arm, need constantly change the tie point of safety rope on the tower crane big arm, can not remain the work of continuous concentration all the time.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a safety device on a tower crane boom, which does not need to replace the connection point of a safety rope on the tower crane boom.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the safety device on the tower crane boom comprises a fixing piece and a plurality of guide boxes, wherein the guide boxes are U-shaped, the guide boxes are in one-to-one correspondence with the upper chords of the tower crane booms and form a plurality of sliding spaces with the upper chords of the tower crane booms, the guide boxes are arranged on the side surfaces of the upper chords of the tower crane booms and are fixedly connected with the upper chords of the tower crane booms, guide holes are formed in the guide boxes, the guide holes penetrate through the two ends of the guide boxes and are communicated with the sliding spaces, the guide holes on the guide boxes are mutually corresponding,

the mounting includes safety rope and guide block, and the transversal trapezoidal of guide block is arranged in the slip space and is slided in the slip space, and the both ends of guide block all are fixed with the guide cone, and the safety rope passes the guiding hole and is dismantled with the guide block and be connected, and the safety rope moves in the guiding hole, and the length of guide block is greater than the distance between two sections adjacent tower crane big arms.

The fixing piece is further arranged, the fixing piece further comprises a connecting body with a T-shaped cross section, the connecting body is composed of a connecting column and a fixing column, the connecting column is in a cylindrical shape, a through hole is formed in the guide block, the connecting column penetrates through the through hole and is fixedly connected with the fixing column, the connecting column rotates in the through hole, the diameter of the fixing column is larger than that of the through hole, and the safety rope penetrates through the guide hole and is detached from the connecting column.

The connecting column is further provided with a hanging ring corresponding to the guide hole, the safety rope penetrates through the hanging ring to be shaped like a Chinese character 'ji', and the two ends of the safety rope are respectively fixed with a climbing buckle.

The stop plates are fixed on the first guide box and the last guide box, the stop plate on the first guide box is arranged at the forefront end of the first sliding space, and the stop plate on the last guide box is arranged at the extreme end of the last sliding space.

The safety rope is further arranged as a steel wire rope.

By adopting the technical scheme, the utility model has the beneficial effects that: when the safety belt is used, an operator wears the safety belt, the safety rope is connected with a hanging point on the safety belt, the safety rope drives the guide blocks to slide in a plurality of mutually corresponding sliding spaces and drive the safety rope to move in the mutually corresponding guide holes on a plurality of guide boxes along with the walking of the operator on the tower crane boom, the guide cones on the guide blocks are matched to facilitate the sliding of the guide blocks in the adjacent sliding spaces, so that the safety connection with the tower crane boom is always kept when the operator who is connected on the tower crane boom walks back and forth at different positions on the tower crane boom through the safety rope, the connection point of the safety rope on the tower crane boom is not required to be continuously replaced, and the continuous concentrated work is always kept.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic structural view of the upper chord of the tower crane boom and the guide box.

Fig. 3 is a schematic view of the structure of the guide box and the fixing member.

Fig. 4 is a schematic view showing the configuration of the first guide box and the stopper plate engaged.

In the figure: the fixing piece 1, the guide box 2, the sliding space 3, the guide hole 4, the safety rope 5, the guide block 6, the guide cone 7, the connecting body 8, the connecting column 9, the fixing column 10, the through hole 11, the hanging ring 12, the climbing buckle 13 and the stop plate 14.

Detailed Description

Embodiments of the present utility model will be further described with reference to fig. 1 to 4.

The safety device on the tower crane boom comprises a fixing piece 1 and a plurality of guide boxes 2, wherein the guide boxes 2 are U-shaped, the guide boxes 2 are in one-to-one correspondence with the upper chords of the tower crane booms and form a plurality of sliding spaces 3 with the upper chords of the tower crane booms, the guide boxes 2 are arranged on the side surfaces of the upper chords of the tower crane booms and are fixedly connected with the upper chords of the tower crane booms, guide holes 4 are formed in the guide boxes 2, the guide holes 4 penetrate through the two ends of the guide boxes 2 and are communicated with the sliding spaces 3, the guide holes 4 on the guide boxes 2 are mutually corresponding,

the mounting 1 includes safety rope 5 and guide block 6, and the transversal trapezoidal of guide block 6 is personally submitted, and guide block 6 is arranged in slide space 3 and is slided in slide space 3, and guide cone 7 is all fixed with at the both ends of guide block 6, and safety rope 5 passes guiding hole 4 and dismantle with guide block 6 and be connected, and safety rope 5 removes in guiding hole 4, and the length of guide block 6 is greater than the connecting distance between the big arm of two sections adjacent tower cranes.

Working principle: when the safety belt is used, an operator wears the safety belt, the safety rope 5 is connected with hanging points on the safety belt, the guide boxes 2 are fixed on the side faces of upper chords of the corresponding tower crane large arms, the guide blocks 6 are driven to slide in the sliding spaces 3 corresponding to each other along with the movement of the operator on the tower crane large arms through the safety rope 5, the safety rope 5 is driven to move in the guide holes 4 corresponding to each other on the guide boxes 2, the cross section of the guide blocks 6 is trapezoidal, the guide blocks 6 slide in the sliding spaces 3 and fall from the guide holes 4 is avoided, the guide cones 7 on the guide blocks 6 are matched to facilitate the guide blocks 6 to enter the adjacent sliding spaces 3, the guide blocks 6 slide in the sliding spaces 3, and therefore, when the operator walks back and forth on different positions of the tower crane large arms, the safety rope 5 always keeps safe connection with the tower crane large arms through the guide blocks 6, and the connecting point of the safety rope 5 on the tower crane large arms does not need to be continuously replaced, and the continuous concentrated work is always kept.

The mounting 1 still includes the connector 8 of transversal T type that personally submits, the connector 8 comprises spliced pole 9 and fixed column 10, it has through-hole 11 to open on the guide block 6, spliced pole 9 passes through-hole 11 and with fixed column 10 fixed connection, spliced pole 9 rotates in through-hole 11, spliced pole 9 is cylindric be convenient for spliced pole 9 at through-hole 11 internal rotation, make things convenient for the operating personnel to change direction and during the angle according to the operation demand and make the health unstable and influence the atress of safety rope 5 to the people because of safety rope 5 twists, thereby influence the operation, be fixed with rings 12 that correspond with guiding hole 4 on spliced pole 9, safety rope 5 passes rings 12 form the herringbone form, be convenient for safety rope 5 is to the atress to the people from the both sides of people, make the operating personnel keep all the time to the atress of people's safety even when the operation on safety rope 5 fix on the tower crane arm, safety rope 5 passes through rings 12 and spliced pole 9 dismantlement connection, make things convenient for the operating personnel to dismantle the connection on the tower crane arm through safety rope 5, be convenient for the operating personnel to break away from on the tower crane arm when the operating personnel is accomplished the operation because of safety rope 5 torsion makes the unstable and influence the atress of safety rope 5 to the people, thereby influence the operation on the people, be fixed on the safety rope 5 is more convenient for the diameter of fixed to be convenient for take the safety rope 5 to take down the safety rope 5 to the fixed on the both ends of the safety rope 5.

The stop plates 14 are fixed on the first guide box 2 and the last guide box 2, the stop plate 14 on the first guide box 2 is arranged at the forefront end of the first sliding space 3, the stop plate 14 on the last guide box 2 is arranged at the extreme end of the last sliding space 3, and the stop plate 14 prevents the guide block 6 from sliding to the forefront end of the first sliding space 3 and the extreme end of the last sliding space 3 and separating from the sliding space 3, so that people are separated from the big arm of the tower crane, and personal safety is influenced.

The safety rope 5 is a steel wire rope, so that the influence on personal safety caused by the breakage of the safety rope 5 during high-altitude operation of operators is avoided.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present utility model.

Claims (5)

1. The utility model provides a safety device on the big arm of the tower crane, which is characterized in that the safety device comprises a fixing piece (1) and a plurality of guide boxes (2), wherein the guide boxes (2) are U-shaped, the guide boxes (2) are in one-to-one correspondence with the upper chords of the big arms of the tower crane and form a plurality of sliding spaces (3) with the upper chords of the big arms of the tower crane, the guide boxes (2) are arranged on the side surfaces of the upper chords of the big arms of the tower crane and are fixedly connected with the upper chords of the big arms of the tower crane, the guide boxes (2) are provided with guide holes (4), the guide holes (4) penetrate through the two ends of the guide boxes (2) and are communicated with the sliding spaces (3), the guide holes (4) on the guide boxes (2) are mutually corresponding,

the mounting (1) is including safety rope (5) and guide block (6), and the transversal trapezoidal of guide block (6) is personally submitted, and slide in slide space (3) in arranging in slide space (3) guide block (6), and both ends of guide block (6) all are fixed with direction awl (7), and safety rope (5) pass guiding hole (4) and dismantle with guide block (6) and be connected, and safety rope (5) remove in guiding hole (4), and the length of guide block (6) is greater than the distance between the big arm of two sections adjacent tower cranes.

2. The safety device on the tower crane boom according to claim 1, wherein the fixing piece (1) further comprises a connecting body (8) with a T-shaped cross section, the connecting body (8) is composed of a connecting column (9) and a fixing column (10), the connecting column (9) is in a cylindrical shape, a through hole (11) is formed in the guide block (6), the connecting column (9) penetrates through the through hole (11) and is fixedly connected with the fixing column (10), the connecting column (9) rotates in the through hole (11), the diameter of the fixing column (10) is larger than that of the through hole (11), and the safety rope (5) penetrates through the guide hole (4) and is detached from the connecting column (9).

3. The safety device on the tower crane boom according to claim 2, wherein the connecting column (9) is fixedly provided with a lifting ring (12) corresponding to the guide hole (4), the safety rope (5) penetrates through the lifting ring (12) to form a herringbone shape, and both ends of the safety rope (5) are respectively fixedly provided with a climbing buckle (13).

4. A safety device on a tower crane boom according to claim 3, characterized in that the stop plate (14) is fixed to both the first of said guide boxes (2) and to the last guide box (2), the stop plate (14) on the first guide box (2) being placed at the foremost end of the first sliding space (3) and the stop plate (14) on the last guide box (2) being placed at the extreme end of the last sliding space (3).

5. A safety arrangement on a tower crane boom according to claim 4, characterized in that the safety rope (5) is a wire rope.