Telescopic cross beam for bridge construction

Abstract

The utility model discloses a telescopic cross beam for bridge construction, which comprises a first main beam and a second main beam, a detachable connecting piece is connected between the first main beam and the second main beam, the connecting piece comprises a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are oppositely distributed. The first connecting plate is connected with T-shaped columns used for synchronous positioning of the first main beam and the second main beam, and the second connecting plate is connected with a locking mechanism used for synchronous locking of the two T-shaped columns. The length of the cross beam is convenient to control and can be adjusted according to actual installation requirements, after the length of the cross beam is determined, the T-shaped column penetrates through the corresponding positioning hole, the stud is rotated to drive the two sliding plates to be far away from each other, the positioning block is pressed on the corresponding positioning groove, namely the second inclined face is pressed on the first inclined face, and therefore positioning of the T-shaped column can be achieved; and thrust in the direction far away from the second connecting plate is applied to the T-shaped column, the connecting tightness of the connecting piece, the first main beam and the second main beam is improved, and use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of crossbeams, in particular to a telescopic crossbeam for bridge construction. Background Art

[0002] A truss is a structure made up of rods connected to each other at both ends with hinges. A truss is a planar or spatial structure composed of straight rods and generally has triangular units. The truss rods mainly bear axial tension or pressure, thereby making full use of the strength of the material. When the span is large, it can save material compared to a solid beam, reduce deadweight and increase rigidity.

[0003] In the process of bridge construction, beams are needed and are installed between two trusses to connect and carry loads. The length of existing beams is often fixed, while the distances between multiple groups of trusses are often different. Therefore, beams of corresponding lengths need to be processed, which increases production costs, resulting in greater limitations on beam installation and applicability needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a retractable crossbeam for bridge construction, which has the advantages of easy control of the crossbeam length, improved tightness of the connection between the connecting piece and the main beam one and the main beam two, safe and reliable use, and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retractable crossbeam for bridge construction, comprising a main beam one and a main beam two, wherein the main beam one and the main beam two are connected with a detachable connecting member, wherein the connecting member comprises a connecting plate one and a connecting plate two, wherein the connecting plate one and the connecting plate two are relatively distributed, and the connecting plate one is connected with a T-shaped column for synchronously positioning the main beam one and the main beam two, and the connecting plate two is connected with a locking mechanism for synchronously locking the two T-shaped columns.

[0006] Preferably, the connecting plate 1 and the connecting plate 2 are both U-shaped structures, and reinforcing ribs are evenly arranged on the sides of the connecting plate 1 and the connecting plate 2.

[0007] Preferably, the main beam one and the main beam two are evenly provided with a plurality of positioning holes, and the positioning holes match the T-shaped columns.

[0008] Preferably, a fixing plate is connected between the two T-shaped columns, and the fixing plate is pressed against the side surface of the first connecting plate.

[0009] Preferably, the locking mechanism includes two sliding plates, two positioning blocks, two inclined planes 2, a rotating handle, and a stud, wherein the rotating handle is connected to the end of the stud, and the stud is used to drive the two sliding plates to move closer to or away from each other, the sliding plate is movably connected to the side of the connecting plate 2, the positioning block is connected to the end of the sliding plate, and the inclined plane 2 is arranged on the positioning block.

[0010] Preferably, a positioning groove is provided on the outer side of the T-shaped column. The positioning groove is provided with a first inclined surface, and the positioning groove matches the positioning block, and the first inclined surface matches the second inclined surface.

[0011] Preferably, the stud is threadedly connected to the two sliding plates, and the internal thread directions of the two sliding plates are opposite.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a connecting member and a locking mechanism, the distance between the first main beam and the second main beam can be adjusted, the telescopic of the cross beam is realized, the length of the cross beam is convenient to control, and it can be adjusted according to the actual installation requirements. When the length of the cross beam is determined, the T-shaped column penetrates through the corresponding positioning holes, and then the stud is rotated to drive the two sliding plates to move away from each other, so that the positioning block presses against the corresponding positioning groove, that is, the second inclined surface presses against the first inclined surface, which can not only position the T-shaped column, but also apply a thrust to the T-shaped column in the direction away from the second connecting plate, improve the fastening property of the connecting member connected to the first main beam and the second main beam, and is safe and reliable to use and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front perspective view of the present utility model;

[0014] Figure 2 is the rear perspective view of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the T-shaped column of the present utility model;

[0016] Figure 4 is Figure 2 partial view of.

[0017] In the figure: 1, the first main beam; 2, the second main beam; 3, the first connecting plate; 4, the second connecting plate; 5, the reinforcing rib; 6, the T-shaped column; 7, the positioning hole; 8, the sliding plate; 9, the positioning groove; 10, the first inclined surface; 11, the positioning block; 12, the second inclined surface; 13, the rotating handle; 14, the stud; 15, the fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 4, the utility model provides a telescopic cross beam for bridge construction, which includes a first main beam 1 and a second main beam 2. A detachable connecting piece is connected between the first main beam 1 and the second main beam 2. The connecting piece includes a first connecting plate 3 and a second connecting plate 4. When the first main beam 1 and the second main beam 2 are butted, the first connecting plate 3 is attached to one side of the first main beam 1 and the second main beam 2, while the second connecting plate 4 is attached to the other side, and the first connecting plate 3 and the second connecting plate 4 are in an aligned state, which is convenient for subsequent positioning of the first main beam 1 and the second main beam 2. The connecting piece is detachably arranged, which is convenient for the separation of the first main beam 1 and the second main beam 2, thereby reducing the occupied space and facilitating transportation. The first connecting plate 3 and the second connecting plate 4 are distributed oppositely, and the first connecting plate 3 is connected with a T-shaped column 6 for synchronously positioning the first main beam 1 and the second main beam 2, and the second connecting plate 4 is connected with a locking mechanism for synchronously locking the two T-shaped columns 6.

[0020] Adjust the distance between the first main beam 1 and the second main beam 2 to meet the installation requirements. Then operate the fixing plate 15 to make the two T-shaped columns 6 penetrate through the corresponding positioning holes 7, and then rotate the screw column 14 to drive the two sliding plates 8 to move away from each other, so that the positioning blocks 11 are pressed against the positioning grooves 9, thereby realizing the positioning of the first main beam 1 and the second main beam 2 and improving the stability of their connection.

[0021] Both the first connecting plate 3 and the second connecting plate 4 are U-shaped structures, and reinforcing ribs 5 are uniformly arranged on the sides of the first connecting plate 3 and the second connecting plate 4. The reinforcing ribs 5 enable the first connecting plate 3 and the second connecting plate 4 to have good compressive resistance and prevent the middle position of the cross beam from bending and deforming.

[0022] A plurality of positioning holes 7 are uniformly arranged on the first main beam 1 and the second main beam 2, and the positioning holes 7 are matched with the T-shaped columns 6.

[0023] A fixing plate 15 is connected between the two T-shaped columns 6, and the fixing plate 15 is pressed against the side of the first connecting plate 3. Operating the fixing plate 15 is convenient for using the two T-shaped columns 6.

[0024] The locking mechanism includes two sliding plates 8, two positioning blocks 11, two inclined surfaces 12, a rotating handle 13, and a screw column 14. The rotating handle 13 is connected to the end of the screw column 14. The screw column 14 is used to drive the two sliding plates 8 to approach or move away from each other. The sliding plates 8 are movably connected to the sides of the second connecting plate 4. The positioning blocks 11 are connected to the ends of the sliding plates 8, and the inclined surfaces 12 are arranged on the positioning blocks 11. Rotating the rotating handle 13 can drive the screw column 14 to rotate, so that the two sliding plates 8 approach or move away from each other. When the two sliding plates 8 move away from each other, the positioning blocks 11 are pressed against the corresponding positioning grooves 9 to realize the synchronous positioning of the first main beam 1 and the second main beam 2; when the two sliding plates 8 approach each other, the positioning blocks 11 are separated from the positioning grooves 9 to realize the unlocking of the T-shaped columns 6, and then the T-shaped columns 6 can be pulled out, which is convenient for the separation or re-position adjustment of the first main beam 1 and the second main beam 2, and the operation is flexible and convenient.

[0025] A positioning groove 9 is provided on the outer side of the T-shaped column 6. The positioning groove 9 is provided with a first inclined surface 10, and the positioning groove 9 matches with the positioning block 11, and the first inclined surface 10 matches with the second inclined surface 12. When the positioning block 11 is pressed against the positioning groove 9, that is, the second inclined surface 12 is pressed against the first inclined surface 10, the T-shaped column 6 has a thrust force in the direction away from the second connecting plate 4, so that the first connecting plate 3 and the second connecting plate 4 are clamped between the first main beam 1 and the second main beam 2, improving the stability of the connection between the first main beam 1 and the second main beam 2.

[0026] The stud 14 is threadedly connected to the two sliding plates 8, and the internal thread directions of the two sliding plates 8 are opposite.

[0027] The sliding plate 8 is slidably connected to the reinforcing rib 5 on the side surface of the second connecting plate 4, which plays a good guiding role for the sliding plate 8.

[0028] Working principle: First, adjust the distance between the first main beam 1 and the second main beam 2 to meet the installation requirements. Operate the fixing plate 15 to make the two T-shaped columns 6 pass through the corresponding positioning holes 7, and the T-shaped columns 6 also pass through the second connecting plate 4 synchronously. Then rotate the rotating handle 13 to drive the stud 14 to rotate, so that the two sliding plates 8 move away from each other, that is, the two positioning blocks 11 move away from each other, and the positioning blocks 11 are pressed against the corresponding positioning grooves 9. At this time, the rotating handle 13 is in a tightened state, which can improve the stability of the connection between the first main beam 1 and the second main beam 2. When the first main beam 1 and the second main beam 2 need to be separated or the position needs to be adjusted again, rotate the rotating handle 13 to drive the stud 14 to rotate back, so that the two sliding plates 8 approach each other, and the positioning blocks 11 are separated from the corresponding positioning grooves 9, realizing the loosening of the T-shaped column 6. Then operate the fixing plate 15 to pull out the two T-shaped columns 6 synchronously, realizing the loosening of the first main beam 1 and the second main beam 2, which is convenient for operating the first main beam 1 and the second main beam 2, and has strong practicability.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic cross beam for bridge construction, comprising a first main beam (1) and a second main beam (2), characterized in that, A detachable connecting member is connected between the first main beam (1) and the second main beam (2). The connecting member includes a first connecting plate (3) and a second connecting plate (4). The first connecting plate (3) and the second connecting plate (4) are distributed oppositely, and the first connecting plate (3) is connected with a T-shaped column (6) for synchronously positioning the first main beam (1) and the second main beam (2). The second connecting plate (4) is connected with a locking mechanism for synchronously locking the two T-shaped columns (6).

2. The telescopic crossbeam for bridge construction according to claim 1, characterized in that, Both the first connecting plate (3) and the second connecting plate (4) are U-shaped structures, and reinforcing ribs (5) are evenly arranged on the sides of the first connecting plate (3) and the second connecting plate (4).

3. The telescopic crossbeam for bridge construction according to claim 1, characterized in that, A plurality of positioning holes (7) are evenly arranged on the first main beam (1) and the second main beam (2), and the positioning holes (7) are matched with the T-shaped columns (6).

4. The telescopic crossbeam for bridge construction according to claim 3, characterized in that, A fixing plate (15) is connected between the two T-shaped columns (6), and the fixing plate (15) presses against the side surface of the first connecting plate (3).

5. A telescopic crossbeam for bridge construction according to claim 1, characterized in that, The locking mechanism includes two sliding plates (8), two positioning blocks (11), two second inclined surfaces (12), a rotating handle (13), and a stud (14). The rotating handle (13) is connected to the end of the stud (14). The stud (14) is used to drive the two sliding plates (8) to approach or move away from each other. The sliding plates (8) are movably connected to the side surface of the second connecting plate (4). The positioning blocks (11) are connected to the ends of the sliding plates (8), and the second inclined surfaces (12) are arranged on the positioning blocks (11).

6. The telescopic crossbeam for bridge construction according to claim 5, characterized in that, A positioning groove (9) is arranged on the outer side of the T-shaped column (6). The positioning groove (9) is provided with a first inclined surface (10), and the positioning groove (9) is matched with the positioning block (11). The first inclined surface (10) is matched with the second inclined surface (12).

7. A telescopic crossbeam for bridge construction according to claim 5, characterized in that, The stud (14) is threadedly connected to the two sliding plates (8), and the internal thread directions of the two sliding plates (8) are opposite.

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