CN107858924B - Bridge provided with telescopic construction platform - Google Patents

Abstract

The application discloses a bridge provided with a telescopic construction platform, and relates to the field of bridge construction, comprising a track, a frame body and at least one telescopic component, wherein the track comprises at least two guide rails which are arranged side by side; the frame body is arranged on the two guide rails in a sliding mode, and comprises a first bracket and a second bracket which are distributed up and down; the telescopic assembly comprises a horizontally arranged telescopic frame and an operation platform arranged on the telescopic frame, the telescopic frame is arranged on the frame body in a sliding mode, and the telescopic frame can horizontally move along the direction perpendicular to the guide rail. The telescopic construction platform provided by the application has the advantages of high construction efficiency, wide construction range, great saving of manpower and material resources, large operation space and convenience for construction operation.

Description

A bridge equipped with a retractable construction platform

Technical field

The invention relates to the field of bridge construction, and in particular to a bridge equipped with a retractable construction platform.

Background technique

Steel truss bridges are a common structural form of heavy-load bridges. Especially when designing double-deck bridges, they have the characteristics of light weight, high stiffness, saving materials and reducing costs. High-strength bolts are often used to connect the rods. Connections, node boards are numerous and scattered.

At present, in the erection of double-layer bridges, in order to bolt and weld the steel trusses of the upper bridge, temporary hangers are usually erected on the lower bridge and used as a bolt welding construction platform. However, on the one hand, because there are so many gusset plates on the steel truss and their locations are different, temporary hangers need to be repeatedly installed and removed during the bolt welding process, which is cumbersome, time-consuming and labor-intensive. On the other hand, temporary hangers are usually It is a truss structure assembled up and down, with a narrow operating space and inconvenience for construction operations. As a result, the operation efficiency is low, the stability is poor, and the safety risk is high.

Contents of the invention

In view of the defects existing in the prior art, the purpose of the present invention is to provide a bridge equipped with a retractable construction platform, which not only has high construction efficiency, wide construction scope, greatly saves manpower and material resources, but also has a large operating space and facilitates construction operations. .

In order to achieve the above objects, the technical solutions adopted by the present invention are:

A retractable construction platform including:

A track, which includes at least two guide rails arranged side by side;

A frame, which is slidably assembled on the two guide rails, and the frame includes a first bracket and a second bracket distributed up and down;

At least one telescopic component, which includes a horizontally arranged telescopic frame and a working platform provided on the telescopic frame. The telescopic frame is slidably assembled on the frame body, and the telescopic frame can be moved along a direction perpendicular to the horizontal movement in the direction of the guide rail.

Based on the above technical solution, at least four running wheels are provided at the bottom of the first bracket, and the first bracket is slidably assembled on the guide rail through the running wheels.

On the basis of the above technical solution, the second bracket and the telescopic frame are both frame structures, and the telescopic frame is slidably sleeved in the second bracket.

On the basis of the above technical solution, the bottom of the telescopic frame is provided with at least two parallel channel steels, and the second bracket is provided with a roller set with the same number as the channel steels, and the roller set includes several parallel The rollers are provided, and the corresponding channel steel is arranged on a roller group.

On the basis of the above technical solution, a plurality of limiting angles are provided on both inner sides of the second bracket for limiting the horizontal position of the telescopic frame.

Based on the above technical solution, the telescopic assembly further includes a lifting mechanism that can telescope up and down. The lifting mechanism is slidably assembled on the telescopic frame, and the working platform 31 is installed on the top of the lifting mechanism.

Based on the above technical solution, both ends of the telescopic frame along the movement direction are each provided with a limit stop for limiting the movement range of the telescopic frame.

Based on the above technical solution, the frame is provided with two telescopic assemblies arranged side by side.

The invention also provides a bridge equipped with the above-mentioned telescopic construction platform. The bridge includes a plurality of longitudinal beams, and the guide rail is arranged on one of the longitudinal beams.

Based on the above technical solution, the longitudinal beam includes an upper flange plate, a support device is provided between the upper flange plate and the guide rail, and the support device includes a third support located above the upper flange plate. One plate, two second plates located below the upper flange plate, and two third plates respectively located on both sides of the upper flange plate, and the two second plates and third plates They are respectively located at both ends of the first plate. The second plate connects the third plate and the first plate in sequence from bottom to top. The inner sides of the first plate, the second plate and the third plate are enclosed to form An accommodating cavity, the upper flange plate is clamped in the accommodating cavity.

Compared with the prior art, the advantages of the present invention are:

(1) In the retractable construction platform of the present invention, the working platform can move along the direction of the guide rail, and can telescopically move in the direction perpendicular to the guide rail, so that the operator can have a wide construction range without repeated installation or disassembly, and only needs to move The gusset plates distributed at different positions can be bolted and welded, which has high construction efficiency and saves manpower and material resources. Moreover, compared with the ordinary truss structure assembled up and down, the working platform of this application can be extended to the outside of the frame, making the operation space larger. , convenient for construction operations.

(2) In the telescopic construction platform of the present invention, the telescopic frame is slidably sleeved in the second bracket. Through the cooperative use of channel steel and roller groups, not only the construction platform has a firm structure, but also has low friction and a good sliding effect. better.

(3) The working platform of the present invention is installed on a lifting mechanism. By adjusting the height of the working platform through the up and down telescopic movement of the lifting mechanism, gusset plates of different heights can be constructed, and the construction efficiency is higher.

(4) The frame of the present invention is equipped with two telescopic assemblies arranged side by side, which can carry out construction operations on the node boards located on both sides of the construction platform. It has a wider scope of application, is convenient to apply, and can also realize simultaneous construction by multiple people. High construction efficiency.

Description of drawings

Figure 1 is a front view of a retractable construction platform in an embodiment of the present invention;

Figure 2 is a side view of Figure 1;

Figure 3 is a side view of the second bracket and telescopic frame in the embodiment of the present invention;

Figure 4 is an enlarged view of B in Figure 3;

Figure 5 is an enlarged view of point A in Figure 1.

In the picture: 1-track, 10-guide rail, 2-frame, 20-first bracket, 21-second bracket, 210-roller group, 211-limit angle steel, 3-telescopic component, 30-telescopic frame, 301 -Channel steel, 302-limit stop, 303-slide, 31-working platform, 32-lifting mechanism, 4-traveling wheels, 5-longitudinal beam, 50-upper flange plate, 6-support device, 60- First board, 61-second board, 62-third board.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and examples.

Referring to Figures 1 and 2, an embodiment of the present invention provides a telescopic construction platform, which includes a track 1, a frame 2 and four telescopic components 3. Each telescopic component 3 is provided with a working platform 31.

The track 1 includes two guide rails 10 arranged side by side. The frame body 2 is slidably assembled on the two guide rails 10. The frame body 2 includes a first bracket 20 and a second bracket 21 distributed up and down. The frame body 2 is a truss structure and is welded with steel pipes. It is assembled in multiple stages. On the basis of ensuring a solid structure, it is lighter in weight, making the structure lighter and easier to use.

Specifically, the telescopic assembly 3 includes a horizontally arranged telescopic frame 30 and a working platform 31 provided on the telescopic frame 30. The telescopic frame 30 is slidably assembled on the frame body 2, and the telescopic frame 30 can move in a direction perpendicular to the guide rail 10. Upper horizontal movement.

At least four running wheels 4 are provided at the bottom of the first bracket 20 . The first bracket 20 is slidably assembled on the guide rail 10 through the running wheels 4 .

As shown in FIGS. 3 and 4 , the second bracket 21 and the telescopic frame 30 are both frame structures, and the telescopic frame 30 is slidably sleeved in the second bracket 21 .

The telescopic frame 30 is provided with two parallel channel steels 301 at the bottom and top. The second bracket 21 is provided with the same number of roller groups 210 as the channel steels 301. The roller group 210 includes a number of rollers arranged in parallel. The channel steels 301 correspond to The assembly is arranged on a roller assembly 210. Preferably, four channel steels 301 are respectively provided at four corner positions of the telescopic frame 30 . In this embodiment, by arranging the matching channel steel 301 and the roller set 210 at the bottom, the telescopic frame 30 is slidably sleeved in the second bracket 21. Not only does the construction platform have a solid structure, but it also has low friction and better sliding effect.

Four limiting angles 211 are provided on both inner sides of the second bracket 21 for limiting the horizontal position of the telescopic frame 30 . The four limiting angles 211 are correspondingly provided at the four corner positions of the telescopic frame 30 . When the telescopic frame 30 telescopically moves, the limiting angle steel 211 can prevent the left and right positions of the telescopic frame 30 from shifting, making the construction platform structure more reliable.

In the embodiment of the present invention, both ends of the telescopic frame 30 along the movement direction are each provided with a limiting block 302 for limiting the movement range of the telescopic frame 30 . The projections of the two limiting blocks 302 on the guide rail 10 are spaced at a certain distance. The second bracket 21 is provided with a bump corresponding to the right side of the leftmost limit stop 302. When the telescopic frame 30 moves from left to right to the set position, the limit stop 302 resists the bump. to limit the extreme position of the telescopic frame 30 from left to right. Similarly, the second bracket 21 is provided with a corresponding bump on the left side of the rightmost limit stop 302. When the telescopic frame 30 moves from right to right, When the left movement reaches the set position, the limit stop 302 will resist the convex block, thereby limiting the extreme position of the telescopic frame 30 from right to left. Due to the projection of the two limit stops 302 on the guide rail 10 At a certain distance apart, the running trajectories of the two limit stops 302 are parallel to each other, and can respectively limit the left and right extreme positions.

Furthermore, the four telescopic assemblies 3 are symmetrically distributed in pairs in a direction parallel to the guide rail 10, and the two telescopic assemblies 3 located in the same row move along opposite sides respectively, so that the gusset plates located on both sides of the construction platform can be inspected. The construction operation has a wider scope of application and is more convenient to use, and each telescopic component 3 is provided with a working platform 31, which allows multiple people to perform construction on multiple working platforms 31, making the construction more efficient.

The telescopic assembly 3 in the embodiment of the present invention also includes a telescopic lifting mechanism 32. The lifting mechanism 32 is slidably assembled on the telescopic frame 30. The telescopic frame 30 is provided with two slideways 303 at the bottom for the movement of the lifting mechanism 32. The slideway 303 is arranged perpendicularly to the guide rail 10, and the working platform 31 is arranged on the top of the lifting mechanism 32. The lifting mechanism 32 adjusts the height of the working platform 31 through telescopic changes, so that gusset plates of different heights can be constructed, and the construction efficiency is higher.

In this embodiment, the lifting mechanism 32 is a scissor-type lifting platform.

The invention also provides a bridge equipped with the above-mentioned telescopic construction platform. The bridge includes a plurality of longitudinal beams 5, and the guide rail 10 is arranged on one longitudinal beam 5.

As shown in Figure 5, the longitudinal beam 5 includes an upper flange plate 50. A support device 6 is provided between the upper flange plate 50 and the guide rail 10. The support device 6 includes a first plate 60 located above the upper flange plate 50. , two second plates 61 provided below the upper flange plate 50, and two third plates 62 respectively provided on both sides of the upper flange plate 50, and the two second plates 61 are respectively located on the first plate 60 At both ends, the second plate 61 connects the third plate 62 and the first plate 60 in sequence from bottom to top. The first plate 60, the second plate 61 and the third plate 62 are enclosed inside to form a receiving cavity. The upper flange plate 50 It is clamped in the accommodation cavity to form a reverse buckle structure, and the support device 6 is firmly installed on the upper flange plate 50 . Preferably, the third plate 62 has the same thickness as the upper flange plate 50 and is arranged parallel to the upper flange plate 50 so that the buckle effect is optimal.

In this embodiment, the guide rail 10 is an I-shaped steel, and the bottom is bolted to the first plate 60. The guide rail 10 is firmly installed on the upper flange plate 50 through the support device 6, thereby preventing the guide rail 10 from directly contacting the surface of the steel beam in a large area. , causing damage to the steel beam finish, and avoiding conflicts with structures such as longitudinal beam shear nails.

When using the above-mentioned retractable construction platform, first slide the frame body 2 to a suitable position on the guide rail 10, and then use sleepers to hold it, and then the telescopic frame 30 slides out to the left and right sides of the frame body 2, and then passes through The lifting mechanism 32 lifts the working platform 31 to a suitable height. After the use is completed, the height of the working platform 31 can be lowered so that it is located in the telescopic frame 30. The telescopic frame 30 then moves in the opposite direction and retracts into the frame body 2. .

In the retractable construction platform of this embodiment, the working platform 31 can move along the direction of the guide rail 10, and can telescopically move in the direction perpendicular to the guide rail 10, so that the workers can have a wide construction range without repeated installation or disassembly. The gusset plates distributed in different positions can be bolted and welded by moving, which has high construction efficiency and saves manpower and material resources. Moreover, compared with the ordinary truss structure assembled up and down, the working platform of this application can be extended to the outside of the frame, making the operation space more Large, convenient for construction operations.

The present invention is not limited to the above embodiments. For those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also regarded as the protection of the present invention. within the range. Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims (7)

1. A bridge having a telescoping work platform mounted thereto, the telescoping work platform comprising:

a track (1) comprising at least two guide rails (10) arranged side by side;

the frame body (2) is arranged on the two guide rails (10) in a sliding mode, and the frame body (2) comprises a first bracket (20) and a second bracket (21) which are distributed up and down;

the telescopic assembly (3) comprises a horizontally arranged telescopic frame (30) and an operation platform (31) arranged on the telescopic frame (30), the telescopic frame (30) is slidably arranged on the frame body (2), and the telescopic frame (30) can horizontally move along the direction perpendicular to the guide rail (10);

the two ends of the telescopic frame (30) along the moving direction are respectively provided with a limit stop block (302) used for limiting the moving range of the telescopic frame (30), the projections of the two limit stop blocks (302) on the guide rail (10) are separated by a certain distance, the right side of the limit stop block (302) positioned at the leftmost side of the second bracket (21) is correspondingly provided with a bump, when the telescopic frame (30) moves from left to right to a set position, the limit stop block (302) is abutted against the bump, so that the limit position of the telescopic frame (30) moving from left to right is limited, the left side of the limit stop block (302) positioned at the rightmost side of the second bracket (21) is correspondingly provided with a bump, and when the telescopic frame (30) moves from right to left to the set position, the limit stop block (302) is abutted against the bump, so that the limit position of the telescopic frame (30) moving from right to left is limited;

the bridge comprises:

the guide rails (10) are arranged on one longitudinal beam (5);

the longitudinal beam (5) comprises an upper flange plate (50), a supporting device (6) is arranged between the upper flange plate (50) and the guide rail (10), the supporting device (6) comprises a first plate (60) arranged above the upper flange plate (50), two second plates (61) arranged below the upper flange plate (50) and two third plates (62) respectively arranged on two sides of the upper flange plate (50), the two second plates (61) and the third plates (62) are respectively arranged at two ends of the first plate (60), the second plates (61) are sequentially connected with the third plates (62) and the first plates (60) from bottom to top, a containing cavity is formed by combining side walls in the first plates (60), the second plates (61) and the third plates (62), and the upper flange plate (50) is clamped in the containing cavity.

2. The bridge of claim 1, wherein: at least four running wheels (4) are arranged at the bottom of the first support (20), and the first support (20) is arranged on the guide rail (10) in a sliding mode through the running wheels (4).

3. The bridge of claim 1, wherein: the second support (21) and the telescopic frame (30) are of frame structures, and the telescopic frame (30) is slidably sleeved in the second support (21).

4. A bridge according to claim 3, wherein: the bottom of the expansion bracket (30) is provided with at least two channel steels (301) which are arranged in parallel, the second bracket (21) is internally provided with roller groups (210) with the same number as the channel steels (301), each roller group (210) comprises a plurality of rollers which are arranged in parallel, and the channel steels (301) are correspondingly arranged on one roller group (210).

5. A bridge according to claim 3, wherein: two inner sides of the second bracket (21) are provided with a plurality of limiting angle steels (211) for limiting the horizontal position of the telescopic frame (30).

6. The bridge of claim 1, wherein: the telescopic assembly (3) further comprises a lifting mechanism (32) which can stretch up and down, the lifting mechanism (32) is arranged on the telescopic frame (30) in a sliding mode, and the operation platform (31) is arranged at the top of the lifting mechanism (32).

7. The bridge of claim 1, wherein: two telescopic components (3) which are arranged side by side are arranged on the frame body (2).