Turning plate type walking channel between pier column construction platform and ladder cage

Abstract

The utility model relates to a turning plate type walking channel between a pier column construction platform and a ladder cage, which comprises a rectangular frame and a rectangular channel platform, the rectangular frame is formed by welding two lower longitudinal rods and two lower cross rods, the size of the rectangular frame is consistent with the size of the cross section of the ladder cage, four corners of the rectangular frame are respectively welded with a vertical rod, and the vertical rods are respectively welded with the ladder cage. An upper longitudinal rod is welded between the upper ends of the two vertical rods above each lower longitudinal rod, an upper transverse rod is welded between the upper ends of the two vertical rods above one lower transverse rod, the other lower transverse rod is rotationally connected with the rear end of the channel platform through a pin shaft parallel to the lower transverse rod, and traction ropes are connected between the front ends of the two sides of the channel platform and the two upper longitudinal rods respectively. Channel guardrails are arranged on the two sides of the channel platform respectively. Assembly type installation can be achieved, the channel platform can be pulled to turn over through the pulling rope, the installation and disassembly speed is high, the pulling rope can play a role of a safety rope, and safety is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, relates to bridge pier construction, and specifically relates to a flap-type walking passage for passing between a pier construction platform and a ladder cage. Background Art

[0002] During the construction of bridge piers, it is necessary to set up a construction platform on the top of the pier and a ladder cage next to the pier. Construction workers go up and down the construction platform through the ladder cage. The ladder cage is generally connected to the pier body through a wall-attached rod, so there will be a certain distance between the ladder cage and the construction platform, and a walking passage needs to be set up between the top of the ladder cage and the construction platform. Currently, in construction, the walking passage is usually built between the ladder cage and the construction platform using steel pipes or steel sections. The two ends of the steel pipes or steel sections are connected to the ladder cage and the construction platform with fasteners or temporarily welded, and the top surface of the steel pipes or steel sections is paved with panels. High bridge piers are usually constructed in sections. As the construction height of the pier column increases, the construction platform and the ladder cage must also be raised accordingly. The walking passage needs to be disassembled and assembled repeatedly, and each disassembly and assembly takes a long time, affecting the construction progress. In addition, the fasteners are easy to loosen and the safety is low. Summary of the invention

[0003] The purpose of the utility model is to solve the above problems and provide a flap-type walking passage between a pier construction platform and a ladder cage, so as to improve the installation and disassembly efficiency of the walking passage and ensure the safety of the passage.

[0004] The technical solution of the utility model is as follows:

[0005] A flap-type walking passage between a pier construction platform and a ladder cage, characterized in that it comprises a rectangular frame and a rectangular passage platform, the rectangular frame being welded from two lower longitudinal bars and two lower cross bars, the size of which is consistent with the cross-sectional size of the ladder cage, a vertical bar being welded to each of the four corners of the rectangular frame, an upper longitudinal bar being welded between the upper ends of the two vertical bars above each lower longitudinal bar, an upper cross bar being welded between the upper ends of the two vertical bars above a lower cross bar, the other lower cross bar being rotatably connected to the rear end of the passage platform by a pin shaft parallel to the lower cross bar, traction ropes are respectively connected to the two upper longitudinal bars at the front ends of both sides of the passage platform, and passage guardrails are respectively provided on both sides of the passage platform.

[0006] The utility model can realize assembled installation, adopts a traction rope to pull the channel platform to flip, has a fast installation and disassembly speed, and the traction rope can play the role of a safety rope, so the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a side view structural schematic diagram of the utility model in a flat state;

[0008] Figure 2 It is a schematic diagram of the structure of the utility model in a flat state when viewed from above;

[0009] Figure 3 It is a side view structural schematic diagram of the utility model in a folded state;

[0010] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0011] Figure 5 It is a schematic diagram of the cross-sectional structure of the slide plate of the chute section;

[0012] Figure 6 It is a schematic diagram of the state of the utility model when it is installed on the ladder cage;

[0013] Figure 7 It is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0014] like Figures 1 to 5 As shown, the utility model includes a rectangular frame and a rectangular channel platform, the rectangular frame is welded by two lower longitudinal rods 1 and two lower cross rods 2, and its size is consistent with the cross-sectional size of the ladder cage, and a vertical rod 3 is welded to the four corners of the rectangular frame respectively, an upper longitudinal rod 4 is welded between the upper ends of the two vertical rods above each lower longitudinal rod, and an upper cross rod 5 is welded between the upper ends of the two vertical rods above a lower cross rod, and the other lower cross rod 2 is rotatably connected to the rear end of the channel platform 6 through a pin shaft 7 parallel to the lower cross rod, and the front ends of both sides of the channel platform 6 are respectively connected to the two upper longitudinal rods 4 with traction ropes 8, and channel guardrails 9 are respectively provided on both sides of the channel platform 6.

[0015] The above structure can pull the channel platform 6 to rotate around the pin 7 by retracting and releasing the traction rope 8, thereby realizing the up and down flipping of the channel platform.

[0016] When the utility model is implemented, the channel platform 6 can adopt at least three parallel longitudinal load-bearing rods 61, and multiple transverse load-bearing rods 62 are welded between the top surfaces of the longitudinal load-bearing rods 61; the rear end of each longitudinal load-bearing rod 61 is rotatably connected to the lower cross bar 2 of the rectangular frame through a pin shaft 7.

[0017] When the utility model is implemented, an ear plate 10 can be welded at the front ends of both sides of the channel platform; two pulleys 11 are fixedly arranged on the two upper longitudinal bars 4, one of which is located at the front end of the upper longitudinal bar, and the other pulley is close to the rear end of the upper longitudinal bar. A guide plate 12 is vertically welded between the upper longitudinal bar 4 and the lower longitudinal bar 1 below the pulley 11 close to the rear end of the upper longitudinal bar. A slide groove 121 with a C-shaped cross section is vertically arranged on the guide plate 12. A plurality of positioning holes 122 distributed along the longitudinal direction of the guide plate are arranged on the guide plate 12. A guide hole 121 is arranged in the slide groove 121, which can be moved along the slide groove. A slide plate 13 slides downward, and a handle 14 protruding out of the slide groove is provided on the slide plate 13. The slide plate 13 is also provided with a pin hole, and a pin 15 is inserted between the pin hole and the positioning hole 122 on the guide plate; the two traction ropes 8 are respectively passed around the pulleys 11 on the two upper longitudinal rods, and the front ends of the two traction ropes 8 are respectively connected to the ear plates 10 on both sides of the front end of the channel platform, and a rope hole 41 is provided on each upper longitudinal rod 4 at a position facing the guide plate. The rear ends of the two traction ropes 8 are respectively passed through the rope holes 41 on the two upper longitudinal rods and connected to the upper ends of the slide plates 13 in the slide grooves of the two guide plates.

[0018] With the above structure, by pressing the handle 14 on the slide plate downward, the slide plate 13 can slide downward in the slide groove, and the channel platform 6 can be pulled upward and flipped by the traction rope 8. After rotating to a certain angle, the pin can be inserted into the pin hole 131 on the slide plate and the positioning hole 122 on the guide plate that penetrates the pin hole to position the channel platform; remove the pin, release the handle, the channel platform can flip downward under the action of gravity, and after turning to a horizontal position, the pin can be inserted into the pin hole and the positioning hole to position the channel platform.

[0019] When the utility model is implemented, in order to facilitate installation on the ladder cage, a connecting rod 16 for connecting with the ladder cage can be vertically fixedly arranged at the bottom of the four corners of the rectangular frame.

[0020] The installation and use of this utility model are as follows:

[0021] like Figure 6 , Figure 7 As shown, the passage platform 6 of the utility model is first turned upward and fixed; after the ladder cage 17 is installed to the construction height of the pier column 18, the utility model is lifted to the top of the ladder cage 17 by a crane, and the four connecting rods 16 are connected and fixed to the top of the ladder cage 17, and then the handle is slid upward, and the traction rope 8 is loosened, so that the passage platform 8 is turned downward until the front end is supported on the pier column construction platform 19, forming a walking passage connecting the ladder cage 17 and the construction platform 19. A positioning pin is inserted between the slide plate and the guide plate, and the traction rope 8 can prevent the passage platform from accidentally separating from the construction platform and continuing to turn downward, playing the role of a safety rope. When the pier column construction height is increased, the walking passage on the top of the ladder cage is first removed, and after the pier column construction platform and the ladder cage are raised, the walking passage of the utility model is reinstalled on the ladder cage 17.

Claims

1. A flap-type walking passage between a pier construction platform and a ladder cage, characterized in that: It includes a rectangular frame and a rectangular channel platform. The rectangular frame is welded by two lower longitudinal rods and two lower cross rods, and its size is consistent with the cross-sectional size of the ladder cage. A vertical rod is welded to each of the four corners of the rectangular frame. An upper longitudinal rod is welded between the upper ends of the two vertical rods above each lower longitudinal rod, and an upper cross rod is welded between the upper ends of the two vertical rods above a lower cross rod. The other lower cross rod is rotatably connected to the rear end of the channel platform through a pin shaft parallel to the lower cross rod. The front ends of both sides of the channel platform are respectively connected to the two upper longitudinal rods with traction ropes, and channel guardrails are provided on both sides of the channel platform.

2. The flap-type walking passage between the pier construction platform and the ladder cage according to claim 1 is characterized in that: The channel platform comprises at least three longitudinal load-bearing bars arranged in parallel, and a plurality of transverse load-bearing bars are welded between the top surfaces of the longitudinal load-bearing bars; the rear end of each longitudinal load-bearing bar is rotatably connected to the lower cross bar of the rectangular frame through a pin shaft.

3. The flap-type walking passage between the pier construction platform and the ladder cage according to claim 1 is characterized in that: An ear plate is welded at the front end of each side of the channel platform; two pulleys are fixedly arranged on the two upper longitudinal bars, one pulley is located at the front end of the upper longitudinal bar, and the other pulley is close to the rear end of the upper longitudinal bar; a guide plate is vertically welded between the upper longitudinal bar and the lower longitudinal bar below the pulley close to the rear end of the upper longitudinal bar, a slide groove with a C-shaped cross section is vertically provided on the upper edge of the guide plate, and a plurality of positioning holes distributed along the longitudinal direction of the guide plate are provided on the guide plate, a slide plate that can slide up and down along the slide groove is provided in the slide groove, a handle protruding out of the slide groove is provided on the slide plate, and a pin hole is also provided on the slide plate, and a pin is interspersed between the pin hole and the positioning hole on the guide plate; the two traction ropes are respectively passed around the pulleys on the two upper longitudinal bars, and the front ends of the two traction ropes are respectively connected with the ear plates on both sides of the front end of the channel platform, a rope passing hole is provided on each upper longitudinal bar at a position facing the guide plate, and the rear ends of the two traction ropes respectively pass through the rope passing holes on the upper two longitudinal bars and are connected with the upper ends of the slide plates in the slide grooves of the two guide plates.

4. The flap-type walking passage between the pier construction platform and the ladder cage according to claim 1 is characterized in that: A connecting rod for connecting with the elevator cage is vertically fixed at the bottom of the four corners of the rectangular frame.

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