Fabricated I-shaped bridge detection working platform

Abstract

The utility model belongs to the technical field of bridge detection working platforms, and particularly relates to an assembly type I-shaped bridge detection working platform which comprises a working platform body, a mechanical supporting arm and two traction steel wires, a side traction frame is installed on one side of the working platform body, and a butt joint top frame is installed at the top end of the side traction frame. Two receding grooves are formed in the butt-joint top frame, a first winding shaft is rotationally connected to the inner wall of the butt-joint top frame, and three limiting chains are arranged at the top end of the butt-joint top frame. The three limiting chains are mutually limited by utilizing different angles, so that the butting top frame can drive the working platform to be used in a stable state, the situation that the working platform shakes during hanging use is reduced, the stability and anti-interference performance of the working platform during use are improved, and the service life of the working platform is prolonged. Therefore, the situation that the working platform collides with the bridge in the shaking process is reduced, the situation that the working platform is blown by environmental wind to swing is reduced, the working efficiency is improved, and the interference influence on a detection result is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge detection work platforms, and in particular relates to an assembled I-shaped bridge detection work platform. Background Art

[0002] Prefabricated I-shaped bridges are currently a mainstream type of bridge. During the use of bridges, they need to be inspected regularly, so a bridge inspection platform is used. It can provide a safe and stable working environment for inspectors to conduct detailed inspections and assessments of various parts of the bridge. The hanging basket work platform is a type of bridge inspection platform. The mechanical support arm supports and pulls the work platform up and down through the traction wire, allowing the work platform to be raised and lowered, allowing the staff on the work platform to perform inspections at different heights of the bridge. However, in actual use, due to the low limiting force of the traction wire on the work platform, the work platform will be unstable and shake during the lifting process, which will cause the work platform to easily hit the bridge during the shaking process, causing damage to the work platform and the bridge. In addition, during the inspection process, due to environmental factors, the ambient wind may blow the work platform to swing, affecting the stability of the staff during the inspection, which not only affects work efficiency but also easily interferes with the inspection results. Utility Model Content

[0003] The utility model provides an assembled I-shaped bridge inspection work platform, which has the characteristic of solving the problem that a hanging basket type work platform is prone to shaking during use and affects the inspection.

[0004] The utility model provides the following technical solution: it includes a working platform, a mechanical support arm and two traction steel wires, a side traction frame is installed on one side of the working platform, a docking top frame is installed on the top of the side traction frame, two give way grooves are provided on the docking top frame, the inner wall of the docking top frame is rotatably connected to the first winding shaft, the two traction steel wires are both wound on the side wall of the first winding shaft, the two mechanical support arms correspond one-to-one to the positions of the two give way grooves, three limiting chains are provided on the top of the docking top frame, the limiting chain includes a number of chain plates, a number of connecting grooves and a number of connecting rods, a connecting plate is installed at the bottom end of the mechanical support arm, the limiting chain and the traction steel wire are both installed at the bottom end of the connecting plate, wherein the two limiting chains are symmetrically distributed on both sides of the other limiting chain, and the angle of the middle limiting chain is perpendicular to the other two limiting chains.

[0005] Among them, a driving motor and an electromagnetic brake are installed on the top of the docking top frame, a second sprocket is installed at the output end of the driving motor, a first sprocket is installed at one end of the first winding shaft, the second sprocket drives the first sprocket to rotate through a transmission chain, and the output shaft of the driving motor is rotatably connected to the inner wall of the electromagnetic brake.

[0006] Wherein, two oblique support rods are installed at the bottom end of the docking top frame, and one end of the two oblique support rods is installed on the side wall of the side traction frame.

[0007] Among them, six vertical plates are installed on the top of the docking top frame, and a second winding shaft is rotatably connected between every two of the vertical plates, and the limiting chain is wound on the corresponding side wall of the second winding shaft.

[0008] Particularly, two side baffles are installed on the side wall of the second winding shaft, the limiting chain is limited between the two corresponding side baffles, and a spring is installed between the second winding shaft and the two corresponding vertical plates.

[0009] Wherein, one side of the side baffle is rotatably connected to a plurality of spherical rolling bodies, and the spherical rolling bodies are slidably connected to the corresponding side of the vertical plate.

[0010] The beneficial effects of the present invention are as follows: the three limit chains are used to restrain and limit each other at different angles, so that the docking top frame can drive the working platform to maintain a stable state during use, reduce the shaking of the working platform when it is suspended, improve the stability and anti-interference of the working platform during use, thereby reducing the possibility of the working platform hitting the bridge during the shaking process, causing damage to itself and the bridge, and during the detection process, reducing the situation where the working platform swings due to environmental wind, thereby reducing the impact on the stability of the staff during detection, thereby improving work efficiency and reducing interference with the detection results.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle;

[0014] Figure 3 It is a schematic diagram of a specific three-dimensional enlarged structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the distribution of components such as the limit chain and the second reel in the utility model from a top view.

[0016] In the figure: 1. Working platform; 11. Mechanical support arm; 111. Connecting plate; 12. Traction wire; 2. Side traction frame; 21. Docking top frame; 22. Makeway groove; 23. First winding shaft; 231. First sprocket; 24. Oblique support rod; 3. Limiting chain; 31. Chain plate; 32. Connecting groove; 33. Connecting rod; 4. Driving motor; 41. Second sprocket; 42. Transmission chain; 43. Electromagnetic brake; 5. Vertical plate; 51. Second winding shaft; 52. Side baffle; 521. Spherical rolling element; 53. Spring. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4 The two traction wires 12 are both wound on the side walls of the first winding shaft 23, and the two mechanical support arms 11 correspond to the two give way slots 22. The top of the docking top frame 21 is rotatably connected to the first winding shaft 23, and the two traction wires 12 are both wound on the side walls of the first winding shaft 23. The two mechanical support arms 11 correspond to the two give way slots 22 one by one. The top of the docking top frame 21 is provided with three limiting chains 3. The limiting chain 3 includes several chain plates 31, several connecting slots 32 and several connecting rods 33. The bottom end of the mechanical support arm 11 is installed with a connecting plate 111, and the limiting chain 3 and the traction wire 12 are both installed on the bottom end of the connecting plate 111. The two limiting chains 3 are symmetrically distributed on both sides of the other limiting chain 3, and the middle limiting chain 3 is perpendicular to the angle between the other two limiting chains 3.

[0018] In this embodiment: the mechanical support arm 11 supports the connecting plate 111, and the mechanical support arm 11 is connected to the two traction wires 12 and the three limit chains 3 through the connecting plate 111. The two traction wires 12 pull the components such as the working platform 1, so that the working platform 1 can drive the staff to move up and down. The docking top frame 21 is connected to one side of the working platform 1 through the side traction frame 2 to avoid position interference to the staff inside the working platform 1. The position of the docking top frame 21 and the first winding shaft 23 is kept fixed, so that the traction wire 12 can dock the top frame 21 through the first winding shaft 23. The first reel 23 is supported by the first reel 23 and the traction wire 12, and the first reel 23 is supported by the first reel 23 and the traction wire 12, so that when the first reel 23 reels the two traction wires 12, the reel 22 can accommodate the reeled traction wire 12 to prevent the first reel 23 from interfering with the reeling of the traction wire 12. There is a certain gap between the two traction wires 12 and the three limiting chains 3, so that the traction wires 12 and the limiting chains 3 will not contact each other when in use, ensuring the stability of the traction wires 12 and the limiting chains 3 when in use. The three limiting chains 3 are all perpendicular to the top of the docking top frame 21, and the two edges are The angles of the limiting chains 3 are inconsistent with the limiting chain 3 in the middle, and the two adjacent chain plates 31 are connected to the two connecting rods 33 through the two connecting grooves 32. The chain plate 31 rotates in the connecting groove 32 on the other chain plate 31 through the two connecting grooves 32, so that the limiting chain 3 can be wound up, and thus when the working platform 1 and the mechanical support arm 11 are pulled in, the limiting chain 3 can be wound up, and the chain plate 31 and the adjacent chain plates 31 can only rotate and bend in one direction, so that the limiting chains 3 with three different angles can be connected to each other by docking the top frame 21 and the connecting plate 111 when in use. Angle limitation, the docking top frame 21 can drive the working platform 1 to maintain a stable state through the side traction frame 2 when being pulled by the traction wire 12, thereby reducing the shaking of the working platform 1 when it is suspended and improving the stability and anti-interference of the working platform 1 during use, thereby reducing the possibility of the working platform 1 hitting the bridge during the shaking process, causing damage to itself and the bridge. In addition, during the inspection process, the ambient wind is reduced to cause the working platform 1 to swing, thereby reducing the impact on the stability of the staff during the inspection, improving work efficiency, and reducing interference with the inspection results.

[0019] The top of the docking top frame 21 is equipped with a driving motor 4 and an electromagnetic brake 43, and the output end of the driving motor 4 is equipped with a second sprocket 41. One end of the first winding shaft 23 is equipped with a first sprocket 231. The second sprocket 41 drives the first sprocket 231 to rotate through the transmission chain 42, and the output shaft of the driving motor 4 is rotatably connected to the inner wall of the electromagnetic brake 43; the docking top frame 21 supports the driving motor 4 and the electromagnetic brake 43, and the driving motor 4 supports and rotates the second sprocket 41. The second sprocket 41 drives the first winding shaft 23 to rotate through the first sprocket 231, so that the first winding shaft 23 can reel in the two traction wires 12, completing the rising action of the working platform 1, and the electromagnetic brake 43 supports and locks the output shaft of the driving motor 4. After the working platform 1 is lifted to the required height, the output shaft of the driving motor 4 is locked by controlling the electromagnetic brake 43, so that the second sprocket 41 no longer rotates, thereby ensuring the stability of the working platform 1 at the required height.

[0020] Two oblique support rods 24 are installed at the bottom end of the docking top frame 21, and one end of the two oblique support rods 24 is installed on the side wall of the side traction frame 2; the side traction frame 2 supports the bottom of the docking top frame 21 through the two oblique support rods 24, thereby improving the stability between the docking top frame 21 and the side traction frame 2, avoiding the occurrence of breakage between the docking top frame 21 and the side traction frame 2, and reducing safety hazards.

[0021] Six vertical plates 5 are installed on the top of the docking top frame 21, and a second winding shaft 51 is rotatably connected between every two vertical plates 5, and the limiting chain 3 is wound on the side wall of the corresponding second winding shaft 51; the docking top frame 21 supports the vertical plates 5, and every two vertical plates 5 support the corresponding second winding shaft 51, and the second winding shaft 51 controls the winding of the corresponding limiting chain 3, so that when the distance between the connecting plate 111 and the docking top frame 21 is shortened, the excess section of the limiting chain 3 can be wound up, avoiding interference problems caused by the loosening of the limiting chain 3 or contact with other components.

[0022] Two side baffles 52 are installed on the side walls of the second winding shaft 51, and the limiting chain 3 is limited between the corresponding two side baffles 52. A spring 53 is installed between the second winding shaft 51 and the corresponding two vertical plates 5; the two side baffles 52 laterally limit the limiting chain 3 wound on the second winding shaft 51, thereby improving the stability of the limiting chain 3 when winding, and improving the winding effect of the limiting chain 3 by the second winding shaft 51. The spring 53 provides rotational power to the second winding shaft 51, so that the second winding shaft 51 can stably wind up the limiting chain 3.

[0023] One side of the side baffle 52 is rotatably connected to a plurality of spherical rolling bodies 521, and the spherical rolling bodies 521 are slidably connected to one side of the corresponding vertical plate 5; when the second winding shaft 51 rotates, it drives the side baffle 52 to rotate, and the side baffle 52 contacts the vertical plate 5 through the spherical rolling bodies 521, reducing the friction resistance and friction loss between the side baffle 52 and the vertical plate 5, and facilitating the rotation of the second winding shaft 51.

[0024] The working principle and use process of the present invention are as follows: when the device is in use, the mechanical support arm 11 pulls the first winding shaft 23 through the connecting plate 111 and the two traction wires 12, and the first winding shaft 23 supports the working platform 1 by docking the top frame 21 and the side traction frame 2, and drives the second sprocket 41 to rotate by controlling the driving motor 4, and the second sprocket 41 drives the first winding shaft 23 to rotate through the first sprocket 231, so that the first winding shaft 23 can reel in the two traction wires 12, completing the lifting action on the working platform 1, so that the working platform 1 can drive the staff to different heights for detection work, and the three limit chains 3 are between the connecting plate 111 and the docking top frame 21. The three limit chains 3 at different angles can be used to The connecting frame 21 and the connecting plate 111 realize mutual angle limitation. When the connecting frame 21 is pulled by the traction wire 12, the connecting frame 21 can drive the working platform 1 to maintain a stable state through the side traction frame 2, thereby reducing the shaking of the working platform 1 when it is suspended and used, and improving the stability and anti-interference of the working platform 1 during use, thereby reducing the working platform 1 from hitting the bridge during the shaking process, causing damage to itself and the bridge. The spring 53 provides rotational power to the second winding shaft 51, so that the second winding shaft 51 can stably reel in the limiting chain 3, so that when the distance between the connecting plate 111 and the connecting frame 21 is shortened, the excess section of the limiting chain 3 can be reeled in, avoiding interference problems caused by the loosening of the limiting chain 3 or contact with other components.

Claims

1. An assembled I-shaped bridge inspection work platform, comprising a work platform (1), a mechanical support arm (11) and two traction wires (12), characterized in that: A side traction frame (2) is installed on one side of the working platform (1), and a docking top frame (21) is installed on the top of the side traction frame (2). Two clearance grooves (22) are provided on the docking top frame (21). The inner wall of the docking top frame (21) is rotatably connected to a first winding shaft (23). The two traction wires (12) are both wound on the side wall of the first winding shaft (23). The two mechanical support arms (11) correspond to the two clearance grooves (22) in one-to-one position. Three limit screws are provided on the top of the docking top frame (21). The limiting chain (3) comprises a plurality of chain plates (31), a plurality of connecting grooves (32) and a plurality of connecting rods (33); a connecting plate (111) is installed at the bottom end of the mechanical support arm (11); the limiting chain (3) and the traction wire (12) are both installed at the bottom end of the connecting plate (111); two of the limiting chains (3) are symmetrically distributed on both sides of another limiting chain (3), and the middle limiting chain (3) is perpendicular to the angle between the other two limiting chains (3).

2. The assembled I-shaped bridge inspection work platform according to claim 1, characterized in that: A driving motor (4) and an electromagnetic brake (43) are installed at the top of the docking top frame (21); a second sprocket (41) is installed at the output end of the driving motor (4); a first sprocket (231) is installed at one end of the first winding shaft (23); the second sprocket (41) drives the first sprocket (231) to rotate through a transmission chain (42); and the output shaft of the driving motor (4) is rotatably connected to the inner wall of the electromagnetic brake (43).

3. The assembled I-shaped bridge inspection work platform according to claim 1, characterized in that: Two oblique support rods (24) are installed at the bottom end of the docking top frame (21), and one end of the two oblique support rods (24) is installed on the side wall of the side traction frame (2).

4. The assembled I-shaped bridge inspection work platform according to claim 1, characterized in that: Six vertical plates (5) are installed on the top of the docking top frame (21), and a second winding shaft (51) is rotatably connected between each two vertical plates (5), and the limiting chain (3) is wound on the side wall corresponding to the second winding shaft (51).

5. The assembled I-shaped bridge inspection work platform according to claim 4, characterized in that: Two side baffles (52) are installed on the side wall of the second winding shaft (51), the limiting chain (3) is limited between the corresponding two side baffles (52), and a spring (53) is installed between the second winding shaft (51) and the corresponding two vertical plates (5).

6. The assembled I-shaped bridge inspection work platform according to claim 5, characterized in that: One side of the side baffle (52) is rotatably connected to a plurality of spherical rolling bodies (521), and the spherical rolling bodies (521) are slidably connected to one side of the corresponding vertical plate (5).

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