Lifter for bridge cable bent tower construction

Abstract

The utility model discloses an elevator for bridge cable bent tower construction, which comprises an inclined ladder, a vertical ladder and a cable bent tower, the lower part of the cable bent tower is inclined, the upper part of the cable bent tower is vertical, the inclined ladder is arranged on the outer side of the lower part of the cable bent tower, the vertical ladder is arranged on the outer side of the upper part of the cable bent tower, and the horizontal distances between the inclined ladder and the cable bent tower and between the vertical ladder and the cable bent tower are the same. A steel platform is arranged on the lower portion of the straight ladder and welded to a steel plate embedded in the cable bent tower, the steel platform on the upper portion of the inclined ladder is connected with the steel platform on the lower portion of the straight ladder, and the connecting point is located at the joint of the lower portion and the upper portion of the cable bent tower. The device has the advantages that the inclined ladder and the straight ladder are respectively arranged on the outer sides of the lower part and the upper part of the cable bent tower in parallel, so that the horizontal distances between the inclined ladder and the cable bent tower and between the straight ladder and the cable bent tower are the same, the dimensions of the steel platform and the wall-attached part lengthening frame are the same, the steel platform and the wall-attached part lengthening frame of different specifications do not need to be customized, and the manufacturing cost and difficulty are low.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator for bridge pylon construction. Background Technique

[0002] The pylon refers to the tower-shaped structure that supports the main cable of a suspension bridge or a cable-stayed bridge. There are various types of pylon structures. Considering stress and aesthetics, most existing pylons have a certain curvature. Usually, the bottom is slightly inclined inward and then extends vertically upward. During construction, if the construction elevator is a straight ladder, the distance between the construction elevator and the pylon gradually increases on the inclined part. If the construction elevator is an inclined ladder, the distance between the construction elevator and the pylon first increases and then decreases. No matter which form is adopted, the size specifications of the steel platforms for the elevator to enter and exit the steel platform up and down need to be customized according to the actual situation on site, and special lengthening frames for wall-attached members of different lengths are also required for auxiliary reinforcement and to provide a platform for construction operations. The entire production and manufacturing process is extremely inconvenient. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that the distance between the existing elevator for pylon construction and the pylon during construction cannot be kept consistent, resulting in the need to customize steel platforms and lengthening frames for wall-attached members of different specifications. To solve the above problem, an elevator for bridge pylon construction is proposed, which includes an inclined ladder, a straight ladder and a pylon. The lower part of the pylon is inclined and the upper part is vertical. The inclined ladder is arranged on the outside of the lower part of the pylon, and the straight ladder is arranged on the outside of the upper part of the pylon. The horizontal distances between the inclined ladder and the straight ladder and the pylon are the same. Steel platforms are arranged at both the upper and lower parts of the inclined ladder, and a steel platform is arranged at the lower part of the straight ladder. The steel platforms are connected to the steel plates embedded in the pylon. The steel platforms at the upper part of the inclined ladder and the lower part of the straight ladder are connected, and the connection point is located at the junction of the lower and upper parts of the pylon.

[0004] The technical solution of the utility model ensures that the horizontal distances between the inclined ladder and the straight ladder and the pylon are the same by arranging the inclined ladder and the straight ladder parallel to the outside of the lower and upper parts of the pylon respectively, so that the size specifications of the steel platforms and the lengthening frames for wall-attached members are the same, and there is no need to customize steel platforms and lengthening frames for wall-attached members of different specifications, with low manufacturing cost and difficulty. By arranging the structure of lengthening frames for wall-attached members between the inclined ladder and the straight ladder and the pylon, it is convenient for construction workers to carry out construction operations at different heights, and at the same time, the connection stability between the straight ladder and the inclined ladder and the pylon is further increased.

[0005] Preferably, for the technical solution of the utility model, the inclined ladder and the straight ladder are staggered from each other, and the inclined ladder and the straight ladder do not affect each other and can operate normally.

[0006] For the optimization of the technical solution of the present utility model, the inclination of the inclined ladder is the same as that of the lower part of the cable tower. An outer cage of the inclined ladder is arranged on the steel platform at the lower part of the inclined ladder. The steel platform is used to provide a support point for facilitating the fixation of the inclined ladder and transporting construction personnel and construction materials through the cage of the inclined ladder. The size of the outer cage of the inclined ladder is larger than that of the cage, preventing construction personnel from straying into the movement range of the cage of the inclined ladder and accidentally injuring construction personnel when the cage of the inclined ladder descends, thus avoiding safety accidents.

[0007] For the optimization of the technical solution of the present utility model, a plurality of lengthening frames of the inclined ladder wall attachment members are evenly arranged between the inclined ladder and the cable tower. The lengthening frames of the inclined ladder wall attachment members are used to further improve the stability of the connection between the inclined ladder and the cable tower, and at the same time provide a platform for completing the construction operations at the lower part of the cable tower.

[0008] For the optimization of the technical solution of the present utility model, an outer cage of the straight ladder is arranged on the steel platform at the lower part of the straight ladder. The outer cage of the straight ladder prevents construction personnel from entering the movement range of the cage of the straight ladder and accidentally injuring construction personnel when the cage of the straight ladder descends, reducing the probability of safety accidents.

[0009] For the optimization of the technical solution of the present utility model, a plurality of lengthening frames of the straight ladder wall attachment members are evenly arranged between the straight ladder and the cable tower. The lengthening frames of the straight ladder wall attachment members are used to further improve the stability of the connection between the straight ladder and the cable tower, and at the same time provide a platform for completing the construction operations at the upper part of the cable tower.

[0010] The beneficial effects of the present utility model compared with the prior art are as follows:

[0011] In the technical solution of the present utility model, by arranging the inclined ladder and the straight ladder in parallel on the outer sides of the lower part and the upper part of the cable tower respectively, ensuring that the horizontal distances between the inclined ladder and the straight ladder and the cable tower are the same, and the size specifications of the steel platform and the lengthening frames of the wall attachment members are the same, there is no need to customize steel platforms and lengthening frames of wall attachment members with different specifications, and the manufacturing cost and difficulty are low; through the structure of arranging lengthening frames of wall attachment members between the inclined ladder and the straight ladder and the cable tower, it is convenient for construction personnel to carry out construction operations at different heights, and at the same time further increases the stability of the connection between the straight ladder and the inclined ladder and the cable tower. Description of the Drawings

[0012] Figure 1 It is the front view of a lift for bridge cable tower construction;

[0013] Figure 2 It is the side view of a lift for bridge cable tower construction;

[0014] Figure 3 It is the top view of a lift for bridge cable tower construction;

[0015] Wherein: 1 - inclined ladder, 2 - lengthening frame of inclined ladder wall attachment member, 3 - outer cage of inclined ladder, 4 - straight ladder, 5 - lengthening frame of straight ladder wall attachment member, 6 - outer cage of straight ladder, 7 - steel platform, 8 - cable tower. Detailed implementation mode

[0016] The following will combine the accompanying drawings in the embodiments of the present utility model Figures 1 - 3 to describe in detail the technical solutions in the embodiments of the present utility model. Embodiment 1

[0017] As Figures 1 - 3 shown, the present utility model is a lift for the construction of a large bridge pylon, including an inclined ladder 1, a straight ladder 4 and a pylon 8. The inclined ladder 1 and the straight ladder 4 are both existing products. The upper and lower parts of the inclined ladder 1 are fixed to the steel platform 7 by welding. The lower part of the straight ladder 4 is fixed to the steel platform 7 by welding. The pylon 8 is a tower-shaped structure that supports the main cables of a suspension bridge or a cable-stayed bridge, and has various types. In this embodiment, the lower part of the pylon 8 is inclined outward and the upper part is vertical.

[0018] The inclined ladder 1 has the same inclination as the lower part of the pylon 8, and is welded to the steel plates embedded in the pylon 8 through the steel platforms 7 at its lower and upper parts respectively, so that the inclined ladder 1 is arranged on the outside of the lower part of the pylon 8. The inclined ladder 1 is composed of multiple inclined ladder standard parts. The inclined ladder 1 includes a cage, and the cage of the inclined ladder 1 can move along the direction of the inclined ladder 1. The upper surface of the steel platform 7 at the lower part of the inclined ladder 1 is fixedly provided with an inclined ladder outer cage 3 by welding, and the cage of the inclined ladder 1 is located within the range enclosed by the inclined ladder outer cage 3.

[0019] The straight ladder 4 is parallel to the upper part of the pylon 8, and is welded to the steel plates embedded in the pylon 8 through the steel platform 7 at its lower part respectively, so that the straight ladder 4 is arranged on the outside of the lower part of the pylon 8. The straight ladder 4 is composed of multiple inclined ladder standard parts. The straight ladder 4 also includes a cage that can move up and down. The upper surface of the steel platform 7 at the lower part of the straight ladder 4 is fixedly provided with a straight ladder outer cage 6 by welding, and the cage of the straight ladder 4 is located within the range enclosed by the straight ladder outer cage 6.

[0020] The inclined ladder 1 and the straight ladder 4 intersect with each other. The steel platform 7 at the upper part of the inclined ladder 1 and the steel platform 7 at the lower part of the straight ladder 4 are at the same horizontal height and are fixedly connected by welding. The connection point is located at the junction of the upper and lower parts of the pylon 8. After the construction personnel and construction materials are transported from the lower part of the pylon 8 to the junction of the upper and lower parts of the pylon 8 through the inclined ladder 1, they are transferred through the straight ladder 4 and continue to be transported to the upper part of the pylon 8.

[0021] A plurality of inclined ladder wall-attached member extension frames 2 are evenly arranged between the inclined ladder 1 and the pylon 8. The inclined ladder wall-attached member extension frames 2 are existing products, and all the inclined ladder wall-attached member extension frames 2 have the same specifications. One end of the inclined ladder wall-attached member extension frame 2 is fixedly connected to the inclined ladder 1 by bolts, and the other end is fixedly welded to the steel plate embedded in the pylon 8; a plurality of straight ladder wall-attached member extension frames 5 are evenly arranged between the straight ladder 4 and the pylon 8. The straight ladder wall-attached member extension frames 5 are existing products, and all the straight ladder wall-attached member extension frames 5 have the same specifications. One end of the straight ladder wall-attached member extension frame 5 is fixedly connected to the straight ladder 4 by bolts, and the other end is fixedly welded to the steel plate embedded in the pylon 8.

[0022] As Figure 2 shown, the inclined ladder 1 is located outside the lower part of the cable tower 8, and the straight ladder 4 is located outside the upper part of the cable tower 8. Since the horizontal lengths of the steel platforms 7 are the same, the horizontal distances between the inclined ladder 1 and the straight ladder 4 and the cable tower 8 are the same, and the specifications of the extended frames 2 of the inclined ladder wall attachments and the extended frames 5 of the straight ladder wall attachments are the same. The inclined ladder 1 and the straight ladder 4 are staggered from each other and do not affect each other during operation.

[0023] A method for using the elevator for the construction of a large bridge cable tower in this embodiment is as follows:

[0024] Construction workers and construction materials are transported upward through the inclined ladder 1 to the extended frames 2 of the inclined ladder wall attachments at the lower part of the cable tower 8, so as to complete corresponding construction operations at different heights at the lower part of the cable tower 8. When reaching the steel platform 7 at the junction of the upper and lower parts of the cable tower 8, the construction workers and construction materials are moved out of the cage of the inclined ladder 1 and all transferred to the cage of the straight ladder 4. The construction workers and construction materials are transported to the extended frames 5 of the straight ladder wall attachments at the upper part of the cable tower 8 through the straight ladder 4, so as to complete corresponding construction operations at different heights at the upper part of the cable tower 8. Since the inclined ladder 1 and the straight ladder 4 are both arranged in parallel on the outside of the cable tower 8 and the size specifications of all the steel platforms 7 are the same, the horizontal distances from the inclined ladder 1 and the straight ladder 4 to the cable tower 8 are the same, and the size specifications of the extended frames 2 of the inclined ladder wall attachments and the extended frames 5 of the straight ladder wall attachments are the same, and there is no need to customize extended frames of different sizes for the wall attachments.

[0025] The above embodiments are only used to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the present invention.

Claims

1. A lifting machine for bridge cable tower construction, comprising an inclined ladder (1), a straight ladder (4) and a cable tower (8), wherein the lower part of the cable tower (8) is inclined and the upper part is vertical, and is characterized in that: The inclined ladder (1) is arranged on the outer side of the lower part of the cable tower (8), and the straight ladder (4) is arranged on the outer side of the upper part of the cable tower (8). The horizontal distances between the inclined ladder (1) and the straight ladder (4) and the cable tower (8) are the same. Steel platforms (7) are arranged on the upper and lower parts of the inclined ladder (1), and the steel platform (7) is arranged on the lower part of the straight ladder (4). The steel platform (7) is welded to the steel plate embedded in the cable tower (8). The steel platform (7) on the upper part of the inclined ladder (1) and the steel platform (7) on the lower part of the straight ladder (4) are connected, and the connection point is located at the intersection of the lower part and the upper part of the cable tower (8).

2. The elevator for bridge tower construction according to claim 1 is characterized in that: The inclined ladder (1) and the straight ladder (4) are staggered with each other.

3. The elevator for bridge tower construction according to claim 1 is characterized in that: The inclined ladder (1) has the same inclination as the lower part of the cable tower (8), and an inclined ladder outer cage (3) is arranged on the steel platform (7) at the lower part of the inclined ladder (1).

4. The elevator for bridge tower construction according to claim 1 is characterized in that: A plurality of inclined ladder wall attachment extension frames (2) are evenly arranged between the inclined ladder (1) and the cable tower (8).

5. The elevator for bridge tower construction according to claim 1 is characterized in that: A vertical ladder outer cage (6) is arranged on a steel platform (7) at the lower part of the vertical ladder (4).

6. The elevator for bridge tower construction according to claim 1, characterized in that: A plurality of straight ladder wall attachment extension frames (5) are evenly arranged between the straight ladder (4) and the cable tower (8).

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