Overhead manned system outside super-long span suspension bridge catwalk portal

Abstract

The utility model discloses a super-long span suspension bridge catwalk portal frame external aerial manned system which is characterized by comprising a catwalk portal frame. The support is welded to the lower portion of the catwalk portal and located on the outer side of the catwalk portal. The cable supporting wheel is connected to the bracket; the traction rope is movably erected and installed on the rope supporting wheel, the traction rope is fixedly connected with a rope clip, and the traction rope is driven by a power structure to move; the upper part of the pull rod is connected with the rope clip, and the lower part is fixedly connected with the car; according to the utility model, the original catwalk door frame and the erected main cable are used as a supporting mechanism of the traction rope, and the lift car and the traction rope are fixed and move along with the traction rope, so that the problem of commuting of operators on the catwalk can be effectively solved; walking efficiency of workers on the catwalk is improved, physical power of the workers is saved, and working conditions of the workers are improved.

Description

Technical Field

[0001] The utility model relates to the field of an overhead passenger-carrying system for a catwalk door frame of a suspension bridge, and more specifically, to an overhead passenger-carrying system for an ultra-long-span catwalk door frame of a suspension bridge. Background Art

[0002] As the most important temporary structure in the construction of the upper structure of a suspension bridge, the catwalk is mainly used to provide a working platform for the upper structure construction, ensuring that the construction workers can safely and effectively complete the main cable pulling, locking, cable tightening, wire winding, main beam erection and other operations. At present, the catwalk surface design is generally composed of wire mesh and wood. The catwalk has a flexible structure and the vibration effect is obvious under the action of pulsating wind, especially in the tower area where the steep slope is difficult to walk, which is time-consuming and laborious. Walking on the catwalk for a long time will cause damage to the workers' knees and easily cause fatigue, affecting the work efficiency.

[0003] The span of suspension bridges is getting bigger and bigger. At present, the main span of domestic suspension bridges has exceeded the 2,000-meter mark, and the corresponding catwalk length has exceeded 4,000 meters. If the conventional catwalk design is still used, it will take 2 to 3 hours for construction workers to walk the catwalk once, and 4 to 6 hours if they turn back. The work intensity is extremely high, and the construction efficiency and quality of the workers are difficult to guarantee. Therefore, it is necessary to develop an overhead manned system on the catwalk of a suspension bridge that can quickly deliver personnel to the designated location and reduce the work intensity of personnel. Utility Model Content

[0004] In order to achieve these purposes and other advantages according to the utility model, a preferred embodiment of the utility model provides an extra-long span suspension bridge catwalk gantry external overhead manned system, comprising:

[0005] Catwalk door frame;

[0006] A bracket, which is welded to the lower part of the catwalk door frame and is located on the outer side of the catwalk door frame;

[0007] A cable pulley connected to the bracket;

[0008] A traction rope is movably mounted on the cable-supporting wheel, the traction rope is fixedly connected to the cable gripper, and the traction rope is moved under the drive of the power structure;

[0009] A pull rod, the upper part of which is connected to the rope gripper, and the lower part of which is fixedly connected to the car;

[0010] A limiting plate is installed on the upper part of the bracket and is spaced a certain distance from the vertical pole of the catwalk door frame.

[0011] Preferably, the extra-long span suspension bridge catwalk gantry external overhead passenger system further comprises a guide block fixed on the upper part of the cable gripper.

[0012] Preferably, the external overhead passenger system of the catwalk gantry of the super-long span suspension bridge also includes a platform, which is fixedly connected to the bottom of the catwalk gantry, and the platform is located below the car.

[0013] Preferably, the external overhead passenger system of the catwalk gantry of the super-long span suspension bridge further comprises a clamp, a fixing sleeve of which is arranged outside the main cable, and the clamp is fixed to the bottom crossbeam of the catwalk gantry through a strut.

[0014] Preferably, an ear plate is provided at the bottom of the clamp, the ear plate is connected to one end of two support rods, the other ends of the two support rods are connected to the bottom crossbeam of the catwalk door frame, and a triangle is formed between the two support rods and the bottom crossbeam of the catwalk door frame.

[0015] Preferably, the external overhead passenger system of the catwalk gantry of the super-long span suspension bridge further comprises a diagonal brace, both ends of which are respectively connected to the vertical pole of the catwalk gantry and the bottom crossbeam of the catwalk gantry.

[0016] Preferably, a connecting ear plate is also reserved on the bottom cross beam of the catwalk door frame, and the ear plate and the connecting ear plate are connected by a pin shaft.

[0017] The utility model includes at least the following beneficial effects: the extra-long span suspension bridge catwalk gantry external overhead manned system of the utility model utilizes the original catwalk gantry and the installed main cable as the supporting mechanism of the traction rope on the catwalk of the long span suspension bridge, the car is fixed to the traction rope and moves with the traction rope, and fixed stations are arranged on the catwalk to carry out personnel getting on and off and passenger transportation in a manner similar to that of a bus, with little interference to the original operation of the catwalk, and can be used during the entire construction period of the upper structure such as the erection of the main cable traction main beam, the catwalk does not need to be widened and the investment cost is low, which can effectively improve the commuting problem of workers on the catwalk, improve the walking efficiency of people on the catwalk, save people's physical strength, and improve the working conditions of workers.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of an overhead manned system outside a catwalk portal of an ultra-long span suspension bridge during the installation of the main cable in one embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the connection between the upright poles and the bottom crossbeam of the catwalk door frame and the car in another embodiment of the utility model;

[0021] Figure 3A side view of an overhead passenger-carrying system outside a catwalk portal of an ultra-long span suspension bridge in another embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0026] like Figure 1 As shown, a preferred embodiment of the utility model provides an overhead passenger-carrying system outside a catwalk gantry of an ultra-long span suspension bridge, comprising:

[0027] Catwalk door frame 2;

[0028] A bracket 3, which is welded to the lower part of the catwalk door frame 2 and is located on the outer side of the catwalk door frame 2;

[0029] A cable pulley 8 connected to the bracket 3;

[0030] A traction rope 5 is movably mounted on the cable wheel 8, the traction rope 5 is fixedly connected to the cable gripper 7, and the traction rope 5 is moved under the driving of the power structure;

[0031] A pull rod 9, the upper part of which is connected to the rope gripper 7, and the lower part of which is fixedly connected to the car 10;

[0032] A limit plate 4 is installed on the upper part of the bracket 3 and is spaced a certain distance from the upright pole of the catwalk door frame 2. A guide block 6 is fixed on the upper part of the rope gripper 7.

[0033] In the above technical solution, during the installation of the main cable, the catwalk gantry 2 serves as the supporting frame of the entire manned system, supporting the traction rope 5. The traction rope 5 is supported on the cable wheel 8 and moves forward and backward, driving the rope gripper 7 and the car 10 to move forward and backward. When the traction rope 5 drives the car to approach the catwalk gantry, a limit plate 4 is arranged between the guide block 6 fixed on the rope gripper 7 and the car 10 to prevent the car 10 from shaking left and right and colliding with the catwalk gantry 2.

[0034] In another technical solution, the overhead passenger system outside the catwalk gantry of the super-long span suspension bridge also includes a platform 11, which is fixedly connected to the bottom of the catwalk gantry 2, and the platform 11 is located below the car 10. The platform 11 is welded and fixed to the bottom of the catwalk gantry 2, serving as a fixed station for the passenger system to go up and down, making it convenient for people to get on and off.

[0035] In another technical solution, the super-long span suspension bridge catwalk gantry external overhead manned system further includes a clamp 12, which is fixedly sleeved on the outside of the main cable 1, and the clamp 12 is fixed to the bottom crossbeam 15 of the catwalk gantry 2 through a strut 14. An ear plate 13 is provided at the bottom of the clamp 12, and the ear plate 13 is connected to one end of two struts 14, and the other ends of the two struts 14 are connected to the bottom crossbeam 15 of the catwalk gantry 2, and a triangle is formed between the two struts 14 and the bottom crossbeam of the catwalk gantry 2.

[0036] It also includes a diagonal brace 16, two ends of which are respectively connected to the upright pole of the catwalk door frame and the bottom crossbeam of the catwalk door frame.

[0037] In the above technical solution, after the main cable is installed, the lower part of the upright pole of the catwalk gantry 2 is connected and fixed to the main cable 1 as a whole through the clamp 12, the support rod 14, the diagonal support 16, and the bottom cross beam 15 of the truss. After the installation is completed, the main cable structure is strong enough to support the lower upright pole of the gantry to continue to provide support for the traction rope.

[0038] In another technical solution, in the external overhead passenger system of the catwalk gantry of the super-long span suspension bridge, a connecting ear plate is also reserved on the bottom cross beam 15 of the catwalk gantry, and the ear plate 13 and the connecting ear plate are connected by a pin shaft, so that the clamp and the bottom cross beam 15 can be quickly installed and disassembled.

[0039] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An overhead passenger system for a catwalk gantry of an ultra-long span suspension bridge, characterized in that: include: Catwalk door frame; A bracket, which is welded to the lower part of the catwalk door frame and is located on the outer side of the catwalk door frame; A cable pulley connected to the bracket; A traction rope is movably mounted on the cable-supporting wheel, the traction rope is fixedly connected to the cable gripper, and the traction rope is moved under the drive of the power structure; A pull rod, the upper part of which is connected to the rope gripper, and the lower part of which is fixedly connected to the car; A limiting plate is installed on the upper part of the bracket and is spaced a certain distance from the vertical pole of the catwalk door frame.

2. The super-long span suspension bridge catwalk gantry overhead passenger system according to claim 1 is characterized in that: It also includes a guide block, which is fixed on the upper part of the rope gripper.

3. The super-long span suspension bridge catwalk gantry external overhead passenger system according to claim 1 is characterized in that: It also includes a platform, which is fixedly connected to the bottom of the catwalk door frame, and the platform is located below the car.

4. The super-long span suspension bridge catwalk gantry overhead passenger system according to claim 1, characterized in that: It also includes a clamp, a fixing sleeve of which is arranged outside the main cable, and the clamp is fixed to the bottom crossbeam of the catwalk door frame through a support rod.

5. The super-long span suspension bridge catwalk gantry overhead passenger system according to claim 4 is characterized in that: An ear plate is provided at the bottom of the clamp, and the ear plate is connected to one end of two support rods, and the other ends of the two support rods are connected to the bottom cross beam of the catwalk door frame, and a triangle is formed between the two support rods and the bottom cross beam of the catwalk door frame.

6. The super-long span suspension bridge catwalk gantry overhead passenger system according to claim 1, characterized in that: It also includes an oblique brace, two ends of which are respectively connected to the vertical pole of the catwalk door frame and the bottom crossbeam of the catwalk door frame.

7. The super-long span suspension bridge catwalk gantry overhead passenger system according to claim 5, characterized in that: A connecting ear plate is also reserved on the bottom cross beam of the catwalk door frame, and the ear plate and the connecting ear plate are connected by a pin shaft.

Images