Synchronous lifting rotary tower crane driver aisle

Abstract

The utility model discloses a synchronous lifting rotary tower crane driver aisle, which belongs to the technical field of building construction and comprises a climbing frame, an aisle and a winch. The aisle is mounted on the climbing frame, can be synchronously lifted along with the climbing frame and is used for leading a tower crane driver to a tower crane cab; the winch is mounted on the climbing frame, can be synchronously lifted together with the aisle along with the climbing frame, and is connected with the aisle through a steel wire rope; when the winch drags or releases the steel wire rope, the passageway can be rotated and folded to the climbing frame. Thus, the steel wire rope is dragged or released through the winch, the aisle can rotate around the rotating shaft, the aisle folding and unfolding functions are achieved, the aisle does not form a cantilever structure when not used through the design, and therefore the instability and overturning risks caused by gravity center lifting and wind power influences when the cantilever structure works aloft are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a synchronous lifting and rotating tower crane driver's aisle. Background Art

[0002] In construction projects, tower cranes are common lifting equipment. As the floors continue to rise, the tower cranes must also rise accordingly. Tower cranes are the most commonly used lifting equipment on construction sites, also known as "tower cranes". They are used to lift construction materials such as steel bars, wooden slats, concrete, steel pipes, etc. with standard sections. Tower cranes are an indispensable equipment on construction sites. There is a ladder inside each standard section of the tower crane. Currently, there are two ways for tower crane drivers to reach the tower crane cab when working. The first is to climb up directly from the ladder of the first standard section at the bottom of the tower crane. Due to the high floors, it is a great challenge to the physical fitness of the tower crane drivers, and if safety protection measures are not well prepared, accidents are very likely to occur. The second way is to take the construction elevator to the designated floor, and then from the designated floor through the access passage to the corresponding tower crane standard section, and then continue to climb up to a certain height from the ladder inside the tower crane standard section to reach the tower crane cab.

[0003] The existing tower crane access channel is often fixed at one end on the floor and the other end on the standard section of the tower crane. As the construction progresses, the floors continue to rise, the tower crane continues to rise, and the distance between the tower crane access channel and the tower crane cab continues to increase. At this time, the access channel needs to be dismantled and reinstalled on a higher floor, which is time-consuming and labor-intensive, and poses a safety hazard.

[0004] The climbing frame and tower crane corridor refers to the passage for the tower crane driver to pass from the climbing frame to the tower crane. In the construction of high-rise and super-high-rise projects, the external operating frame of the project is set up in the form of ground-type steel pipe scaffolding, cantilever steel pipe scaffolding, attached lifting scaffolding (climbing frame), etc. The attached lifting scaffolding refers to a structure that is set up at a certain height and attached to the project structure, relying on its own lifting equipment and devices, and can climb or descend layer by layer with the project structure.

[0005] The Chinese patent with the publication number CN 213391147 U discloses a climbing frame and tower crane aisle device, which includes a climbing frame, a detachably connected overpass aisle is provided on one side of the climbing frame, and a fixedly connected scaffolding board is provided on the other side, the overpass aisle is provided with a first scaffolding board at the front end, and a second scaffolding board at the rear end; a waist bar is provided above the first scaffolding board, one end of the second scaffolding board is movably connected to the first scaffolding board, and the other end is connected to the waist bar through a flap hanging wire rope, a diagonal brace connector is provided at the connection between the horizontal waist bar and the vertical waist bar, and an inclined support rod is also provided between the diagonal brace connector and the climbing frame, one end of the support rod is connected to the climbing frame, and the other end is connected to the diagonal brace connector. It uses a support rod instead of a wire rope, and due to the rigidity of the support rod itself, the support strength of the overpass aisle is greatly improved, making the overpass aisle stable and strong, and improving the safety of the operators.

[0006] A Chinese patent application with publication number CN 114105008 A discloses a rotatable tower crane access passage that climbs with a climbing frame. The technical solution includes an access passage located between the climbing frame and a standard section of the tower crane. The access passage includes a device body and a passage control system that is communicatively connected to the climbing frame control system. The device body includes a passage assembly, a protective door assembly, and a flap assembly. The passage assembly includes a support rod and a reinforcing rod. The support rod is located on one side of the climbing frame, and both ends of the reinforcing rod are fixedly connected to the side wall of the support rod. The protective door assembly includes a door frame arranged on the upper part of the support rod near one end of the climbing frame, a door panel movably arranged inside the door frame through a hinge shaft, an electronic lock arranged on the upper part of the door panel, and cameras are arranged on both sides of the electronic lock. The flap assembly includes a fixing plate connected to the reinforcing rod through screws and a foot pedal movably connected to the fixing plate.

[0007] A Chinese patent with publication number CN 218025126 U discloses a tower crane walkway, and its technical solution includes: a walkway, two guardrails, two tie rod racks and two horizontal support rods. One end of the walkway is detachably connected to a first climbing frame walkway plate, and the other end faces the tower crane and a gap is arranged between the tower crane, and the walkway is used for people to walk; a guardrail is fixedly arranged on both sides of the walkway, and the protective tie rod is used to be fixedly arranged on both sides of the walkway to protect the people walking on the walkway; a tie rod rack is fixedly arranged on both sides of the walkway, and the other end is detachably connected to the second climbing frame walkway plate, and the height of the second climbing frame walkway plate is higher than that of the first climbing frame walkway plate; a horizontal support rod is fixedly arranged on both sides of the walkway, and the other end is detachably connected to the first climbing frame walkway plate, thereby shortening the climbing distance of the tower crane driver and passengers, and facilitating the tower crane driver and maintenance personnel to climb the tower.

[0008] The above disclosed technical solution enables the access passage (walkway) to be raised synchronously with the climbing frame, greatly shortening the distance that drivers and passengers have to climb the tower and providing convenience. However, the artificial passage (walkway) is equivalent to a cantilever structure set on the climbing frame. As the cantilever structure is raised, the center of gravity of the whole structure composed of the climbing frame and the cantilever will also rise, which is prone to overall instability or even overturning. Moreover, the cantilever structure is more susceptible to wind force, which may cause the structure to vibrate or swing, affecting the stability of the structure. Utility Model Content

[0009] In view of this, the utility model provides a synchronous lifting and rotating tower crane driver's aisle, which can be flipped and folded up when the climbing frame is lifted and people are not passing through, so as to avoid the formation of a cantilever structure on the climbing frame, thereby solving the problem of instability or even overturning caused by the cantilever, and the cantilever structure being easily affected by wind, causing structural vibration or swinging, and affecting the structural stability.

[0010] The utility model adopts the following technical solutions:

[0011] A synchronous lifting and rotating tower crane driver's gangway comprises a climbing frame, a gangway and a winch;

[0012] The passage is installed on the climbing frame and can be lifted synchronously with the climbing frame. The passage is used by the tower crane driver to go to the tower crane cab;

[0013] The hoist is installed on the climbing frame, and can be lifted synchronously with the climbing frame together with the aisle, and the hoist is connected to the aisle through a steel wire rope;

[0014] When the winch pulls or releases the wire rope, the passageway can be rotated and retracted onto the climbing frame.

[0015] Further, the passageway includes a fixed section and a movable section;

[0016] One end of the fixed section is fixedly connected to the climbing frame, and the other end of the fixed section is hinged to one end of the movable section;

[0017] When the winch pulls the wire rope, the movable section can rotate around the hinged position, so that the aisle is folded onto the climbing frame; when the winch releases the wire rope, the movable section can rotate in the opposite direction around the hinged position, so that the aisle is unfolded from the climbing frame.

[0018] Furthermore, the width of the fixed section is greater than the width of the movable section;

[0019] The length of the fixed section is smaller than the length of the movable section.

[0020] Further, it also includes a triangular support frame;

[0021] The triangular support frame is installed below the fixing section and is used to support the fixing section.

[0022] Furthermore, it also includes protective railings arranged on both sides of the aisle.

[0023] Beneficial effects:

[0024] 1. The synchronous lifting and rotating tower crane driver's aisle provided in the present application includes a climbing frame, an aisle and a winch; the aisle is installed on the climbing frame and can be lifted synchronously with the climbing frame, and the aisle is used for the tower crane driver to go to the tower crane cab; the winch is installed on the climbing frame and can be lifted synchronously with the aisle, and the winch is connected to the aisle through a wire rope; when the winch pulls or releases the wire rope, the aisle can be rotated and retracted onto the climbing frame.

[0025] In this way, by installing the aisle on the climbing frame and lifting it synchronously with the climbing frame, the height of the aisle can be automatically adjusted as the tower crane rises, thereby reducing the workload and time of manually reinstalling the aisle. In addition, by pulling or releasing the wire rope by the winch, the aisle can rotate around the rotation axis to achieve the function of folding and unfolding the aisle. This design allows the aisle to not form a cantilever structure when not in use, thereby reducing the instability and overturning risk of the cantilever structure caused by the lifting of the center of gravity and the influence of wind during high-altitude operations. At the same time, this design allows the aisle to be unfolded and folded through the simple operation of the winch and wire rope without adding additional mechanical structures, simplifying the operation process.

[0026] 2. The aisle includes a fixed section and a movable section; one end of the fixed section is fixedly connected to the climbing frame, and the other end of the fixed section is hinged to one end of the movable section; when the winch pulls the wire rope, the movable section can be rotated around the hinged position, so that the aisle is folded on the climbing frame; when the winch releases the wire rope, the movable section can be rotated in the opposite direction around the hinged position, so that the aisle is unfolded from the climbing frame.

[0027] In this way, through the combination of the fixed section and the movable section, the fixed section provides stability, while the movable section allows the aisle to be expanded or retracted as needed.

[0028] 3. The width of the fixed section is greater than that of the movable section. In this way, the fixed section with a larger width can serve as the main support point of the aisle, providing a more stable support foundation, while allowing the movable section to be more reliably supported on the fixed section after rotation and retraction. The length of the fixed section is less than that of the movable section, so that the longer movable section can be closer to the climbing frame when retracted, reducing the impact of high-altitude wind on the aisle and reducing vibration and swing.

[0029] 4. The triangular support frame is installed under the fixed section to support the fixed section. This increases the stability of the aisle structure, especially when working at high altitudes, and can reduce the shaking and vibration of the aisle.

[0030] 5. Install guardrails on both sides of the aisle. This provides additional safety for the crane driver to prevent accidental falls when walking on the aisle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the synchronous lifting and rotating tower crane driver's aisle in an unfolded state provided by the utility model;

[0032] Figure 2 A schematic diagram of a synchronous lifting rotary tower crane driver's aisle in a folded state provided by the utility model;

[0033] Figure 3 A top view of the driver's aisle of the synchronous lifting rotary tower crane provided by the utility model;

[0034] Among them, 1-fixed section, 2-movable section, 3-triangular support frame, 4-wire rope, 5-winch, 6-climbing frame, 7-tower crane, 8-guardrail. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0036] Reference Figure 1 to Figure 3 A synchronous lifting and rotating tower crane driver's gangway (hereinafter referred to as the gangway) comprises a climbing frame, a gangway and a winch, wherein:

[0037] The aisle is installed on the climbing frame 6 and can be lifted synchronously with the climbing frame 6. The aisle is used for the tower crane driver to go to the cab of the tower crane 7; the winch 5 is installed on the climbing frame 6 and can be lifted synchronously with the aisle together with the climbing frame 6, and the winch 5 is connected to the aisle through the wire rope 4; when the winch 5 pulls or releases the wire rope 4, the aisle can be rotated and retracted onto the climbing frame 6.

[0038] In this way, by installing the aisle on the climbing frame 6 and lifting it synchronously with the climbing frame 6, the height of the aisle can be automatically adjusted as the tower crane 7 rises, thereby reducing the workload and time of manually reinstalling the aisle. Moreover, by pulling or releasing the wire rope 4 by the winch 5, the aisle can be rotated to achieve the function of folding and unfolding the aisle. This design allows the aisle to not form a cantilever structure when not in use, thereby reducing the instability and overturning risk of the cantilever structure caused by the lifting of the center of gravity and the influence of wind during high-altitude operations. Moreover, this design allows the aisle to be unfolded and folded through the simple operation of the winch 5 and the wire rope 4 without adding additional mechanical structures, simplifying the operation process. It can be understood that in order to rotate the aisle, a rotating structure can be set at a suitable position of the aisle (such as the connection between the aisle and the climbing frame 6), and the above functional limitations can be achieved through existing technologies.

[0039] Specifically, in this embodiment, the passageway includes a fixed section 1 and a movable section 2, one end of the fixed section 1 is fixedly connected to the climbing frame 6, and the other end of the fixed section 2 is hinged to one end of the movable section 2; when the winch 5 pulls the wire rope 4, the movable section 2 can rotate around the hinge position, so that the passageway (specifically the movable section 2) is folded on the climbing frame 6; when the winch 5 releases the wire rope 4, the movable section 2 can rotate in the opposite direction around the hinge position, so that the passageway (specifically the movable section 2) is unfolded from the climbing frame 6. In this way, through the combination of the fixed section 1 and the movable section 2, the fixed section 1 provides stability, and the movable section 2 allows the passageway to be unfolded or folded as needed.

[0040] Specifically, in this embodiment, the width of the fixed section 1 is greater than the width of the movable section 2, and the length of the fixed section 1 is less than the length of the movable section 2. In this way, the fixed section 1 with a larger width can serve as the main support point of the aisle, providing a more stable support foundation, while allowing the movable section 2 to be more reliably supported on the fixed section 1 after rotation and retraction. The length of the fixed section 1 is less than the length of the movable section, so that the longer movable section 1 can be closer to the climbing frame 6 when retracted, reducing the impact of high-altitude wind on the aisle and reducing vibration and swing.

[0041] Specifically, in this embodiment, the synchronous lifting rotary tower crane driver's aisle further includes a triangular support frame 3, which is installed below the fixed section 1 to support the fixed section 1. In this way, the stability of the aisle structure is increased, especially during high-altitude operations, the shaking and vibration of the aisle can be reduced.

[0042] Specifically, in the present embodiment, the synchronous lifting rotary tower crane driver's aisle also includes a guardrail 8 arranged on both sides of the aisle. In this way, additional safety protection is provided for the tower crane driver to prevent accidental falls when walking on the aisle.

[0043] More specifically, in this embodiment, the main keel structure of the corridor is made of 60×60×6mm galvanized square steel pipes by welding. The width of the corridor of the fixed section 1 is 1070mm, and the width of the movable section 2 is 920mm. The fixed section 1 and the movable section 2 are connected by steel hinges. The guardrail 8 of the corridor is made of 40×40×4mm galvanized square steel pipes, and the manufacturing method is welding. The triangular support frame 3 is made of 16# channel steel, and double-sided groove welding is used between the channel steels. The weld seam is not less than 8mm. The triangular support frame 3 and the frame of the climbing frame 6 are fixed with M20 high-strength bolts. The winch 5 is two small electric winches with locking mechanisms. The two winches 5 are connected to the movable section 2 by a steel wire rope 4 respectively to drive the rotation of the movable section 2, and at the same time play a role in stabilizing and tightening the movable section 2 when the corridor is unfolded.

[0044] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A synchronous lifting rotary tower crane driver's aisle, characterized in that: Including climbing frame, gangway and winch; The passage is installed on the climbing frame and can be lifted synchronously with the climbing frame. The passage is used by the tower crane driver to go to the tower crane cab; The hoist is installed on the climbing frame, and can be lifted synchronously with the climbing frame together with the aisle, and the hoist is connected to the aisle through a steel wire rope; When the winch pulls or releases the wire rope, the passageway can be rotated and retracted onto the climbing frame.

2. The synchronous lifting rotary tower crane driver's walkway according to claim 1 is characterized in that: The passageway comprises a fixed section and a movable section; One end of the fixed section is fixedly connected to the climbing frame, and the other end of the fixed section is hinged to one end of the movable section; When the winch pulls the wire rope, the movable section can rotate around the hinged position, so that the aisle is folded onto the climbing frame; when the winch releases the wire rope, the movable section can rotate in the opposite direction around the hinged position, so that the aisle is unfolded from the climbing frame.

3. The synchronous lifting rotary tower crane driver's walkway according to claim 2 is characterized in that: The width of the fixed section is greater than the width of the movable section; The length of the fixed section is smaller than the length of the movable section.

4. The synchronous lifting and rotating tower crane driver's walkway according to claim 2 is characterized in that: Also included is a tripod support frame; The triangular support frame is installed below the fixing section and is used to support the fixing section.

5. A synchronous lifting rotary tower crane driver's walkway according to any one of claims 1 to 4, characterized in that: It also includes protective railings arranged on both sides of the aisle.

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