Quick positioning and leveling device for bridge support

Abstract

The utility model discloses a quick positioning and leveling device for a bridge support, which relates to the technical field of bridge construction, and comprises two bearing frames for placing the support and a bottom frame for mounting the bearing frames, the two bearing frames comprise upper bearing beams which are parallel to each other and are used for placing the support, and lower bearing beams which are parallel to each other and are used for placing the support; the two upper spandrel girders can be driven to move and adjust the distance between the two upper spandrel girders, the bottom frame comprises bearing rods vertically arranged at the two ends of the upper spandrel girders and a bottom spandrel girder used for installing the bearing rods, and the bearing rods can be driven to vertically move on the bottom spandrel girder; the support is installed on the device, the plane position of the support can be adjusted by adjusting the distance between the upper bearing beams and the positions of the bearing rods, the height difference of the four corners of the support can be adjusted through the bearing rods, and after grouting and solidification of the support are completed, the device is detached and allocated to the next construction site for turnover use.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a bridge support rapid positioning and leveling device. Background Art

[0002] Bridge bearings are an important component of the entire bridge structure, connecting the upper and lower parts. Their installation position and flatness directly affect the safety and stability of the bridge structure. The railway industry specifications have extremely high control over the allowable deviation of bearing installation, requiring that the longitudinal allowable deviation of bridge bearings be 2cm, the lateral allowable deviation be 1cm, and the horizontal height difference of the four corners of the support surface be controlled within 2mm. However, traditional bridge bearing installation is usually carried out by manual pulling + padding steel plates. Due to the unevenness of the top surface during the construction of the bearing pad stone, it is difficult to control the elevation and flatness of the bearing steel plate. The installation accuracy of the bridge bearing directly affects the service life of the bridge. First, if the bearing installation error is large, the longitudinal or lateral displacement between the bearing center line and the pier cross line exceeds the allowable range, which will cause uneven force on the bearing. This may cause excessive force on one side of the support, resulting in damage and cracking of the support, and even affecting the stability and safety of the beam; secondly, large errors in the installation of the support will cause deformation of the bridge structure. For example, the torque on the beam of a curved bridge increases under the action of its own weight. The deviation of the support position from the design position will increase the torque of the beam, causing the beam to twist and deform, affecting the overall stability of the beam; thirdly, the problem of excessive height difference at the four corners of the support will not only affect the normal use of the support, but may also cause overall slippage of the bridge and displacement of the support, further aggravating damage to the support; fourthly, long-term uneven force and structural deformation will shorten the service life of the support and increase maintenance costs. At the same time, problems such as damage and cracking of the support will lead to a decrease in the stability and safety of the bridge, affecting the normal use of the cup beam. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a bridge support rapid positioning and leveling device.

[0004] The utility model provides a bridge support rapid positioning and leveling device adopting the following technical solutions:

[0005] A rapid positioning and leveling device for bridge bearings comprises a load-bearing frame for placing the bearings and a base frame for installing the load-bearing frame, wherein the load-bearing frame comprises two upper load-bearing beams parallel to each other for placing the bearings, and the two upper load-bearing beams can be driven to move and adjust the distance between them, and the base frame comprises load-bearing rods vertically arranged at both ends of the upper load-bearing beams and a bottom load-bearing beam for installing the load-bearing rods, and the load-bearing rods can be driven to move vertically on the bottom load-bearing beams.

[0006] Furthermore, the load-bearing frame also includes two adjusting rods respectively used to connect the two ends of the two upper load-bearing beams, and the adjusting rods are used to adjust the distance between the two upper load-bearing beams. The upper load-bearing beams and the adjusting rods form a frame structure.

[0007] Furthermore, adjusting screws with opposite threads are provided at both ends of the adjusting rod, and the adjusting screws are threadedly connected to the upper load-bearing beam.

[0008] Furthermore, a mounting plate is provided on the bottom load-bearing beam, and the load-bearing rod is vertically arranged on the mounting plate and can move vertically on the mounting plate.

[0009] Furthermore, a height adjustment screw is provided at the bottom of the load-bearing rod, and the height adjustment screw passes through the mounting plate and cooperates with the bottom thread of the load-bearing rod. A limiting nut is provided on the mounting plate, and the height adjustment screw passes through the limiting nut and is fixed to the mounting plate by the limiting nut.

[0010] Furthermore, a cross-shaped mounting hole is provided on the mounting plate, and the height adjustment screw passes through the mounting hole.

[0011] In summary, the utility model includes at least one of the following beneficial effects: the support is installed on the device, and the plane position of the support can be adjusted by adjusting the distance between the upper load-bearing beams and the position of the load-bearing rods. The height difference of the four corners of the support can be adjusted through the load-bearing rods. After the support is grouting and solidified, the device can be disassembled and deployed to the next construction site for turnover use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0014] Description of reference numerals:

[0015] 1. Load-bearing frame; 11. Load-bearing beam; 12. Adjusting rod; 13. Adjusting screw; 2. Base frame; 21. Load-bearing rod; 22. Bottom load-bearing beam; 23. Mounting plate; 231. Mounting hole; 24. Height adjustment screw; 25. Limit nut. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0017] The following is combined with Figure 1-2 The utility model is described in further detail.

[0018] The embodiment of the utility model discloses a bridge support rapid positioning and leveling device. Figure 1-Figure 2 The bridge bearing rapid positioning and leveling device includes a load-bearing frame 1 for placing the bearing and a base frame 2 for installing the load-bearing frame 1. The load-bearing frame 1 includes two upper load-bearing beams 11 parallel to each other for placing the bearings. The two upper load-bearing beams 11 can be driven to move and adjust the distance between them. The base frame 2 includes load-bearing rods 21 vertically arranged at both ends of the upper load-bearing beams 11 and a bottom load-bearing beam 22 for installing the load-bearing rods 21. The load-bearing rods 21 can be driven to move vertically on the bottom load-bearing beams 22. The bearing is installed on the device. The plane position of the bearing can be adjusted by adjusting the distance between the upper load-bearing beams 11 and the position of the load-bearing rods 21. The height difference of the four corners of the bearing can be adjusted by moving the load-bearing rods 21 up and down. After the bearing is grouted and solidified, the device is disassembled and deployed to the next construction site for turnover use.

[0019] In this embodiment, the load-bearing frame 1 also includes two adjusting rods 12 for connecting the two ends of the two upper load-bearing beams 11 respectively. The adjusting rods 12 are used to adjust the distance between the two upper load-bearing beams 11. The upper load-bearing beams 11 and the adjusting rods 12 form a frame structure, and the distance and position between the two upper load-bearing beams 11 are adjusted by the adjusting rods 12.

[0020] In this embodiment, adjusting screws 13 with opposite threads are provided at both ends of the adjusting rod 12. The adjusting screws 13 are threadedly connected to the upper load-bearing beams 11. By rotating the adjusting rod 12, the two upper load-bearing beams 11 can be moved in opposite directions, thereby facilitating the adjustment of the distance between the two upper load-bearing beams 11.

[0021] In this embodiment, a mounting plate 23 is provided on the bottom load-bearing beam 22 , and the load-bearing rod 21 is vertically arranged on the mounting plate 23 and can move vertically on the mounting plate 23 .

[0022] In this embodiment, a height-adjusting screw 24 is provided at the bottom of the load-bearing rod 21, and the height-adjusting screw 24 passes through the mounting plate 23 and cooperates with the bottom thread of the load-bearing rod 21. A limiting nut 25 is provided on the mounting plate 23, and the height-adjusting screw 24 passes through the limiting nut 25 and is fixed to the mounting plate 23 by the limiting nut 25. By rotating the nut of the height-adjusting screw 24, the load-bearing rod 21 can be moved up and down to adjust the height of the four corners of the load-bearing frame 1.

[0023] In this embodiment, a cross-shaped mounting hole 231 is provided on the mounting plate 23 , and the height-adjusting screw 24 passes through the mounting hole. The height-adjusting screw 24 can move in the mounting hole 231 to adjust the horizontal position of the load-bearing rod 21 .

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bridge support rapid positioning and leveling device, characterized by: The invention comprises a load-bearing frame (1) for placing a support and a bottom frame (2) for installing the load-bearing frame (1), wherein the load-bearing frame (1) comprises two upper load-bearing beams (11) for placing the support and being parallel to each other, and the two upper load-bearing beams (11) can be driven to move and adjust the distance between them, and the bottom frame (2) comprises load-bearing rods (21) vertically arranged at both ends of the upper load-bearing beams (11) and a bottom load-bearing beam (22) for installing the load-bearing rods (21), and the load-bearing rods (21) can be driven to move vertically on the bottom load-bearing beams (22).

2. The bridge support rapid positioning and leveling device according to claim 1 is characterized in that: The load-bearing frame (1) further comprises two adjusting rods (12) respectively used to connect the two ends of the two upper load-bearing beams (11); the adjusting rods (12) are used to adjust the distance between the two upper load-bearing beams (11); the upper load-bearing beams (11) and the adjusting rods (12) form a frame structure.

3. The bridge support rapid positioning and leveling device according to claim 2 is characterized in that: Adjustment screws (13) with opposite threads are provided at both ends of the adjustment rod (12), and the adjustment screws (13) are threadedly connected to the upper load-bearing beam (11).

4. The bridge support rapid positioning and leveling device according to claim 1 is characterized in that: A mounting plate (23) is provided on the bottom load-bearing beam (22), and the load-bearing rod (21) is vertically arranged on the mounting plate (23) and can move vertically on the mounting plate (23).

5. The bridge support rapid positioning and leveling device according to claim 4 is characterized in that: A height adjustment screw rod (24) is provided at the bottom of the load-bearing rod (21), and the height adjustment screw rod (24) passes through the mounting plate (23) and is engaged with the bottom thread of the load-bearing rod (21). A limiting nut (25) is provided on the mounting plate (23), and the height adjustment screw rod (24) passes through the limiting nut (25) and is fixed to the mounting plate (23) by the limiting nut (25).

6. The bridge support rapid positioning and leveling device according to claim 5, characterized in that: The mounting plate (23) is provided with a cross-shaped mounting hole (231), and the height-adjusting screw rod (24) passes through the mounting hole.

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