Slope adjusting device for bridge bottom

Abstract

The utility model provides a slope adjusting device for a bridge beam bottom, belongs to the technical field of beam bottom slope adjusting devices, and aims to solve the problems that the process of independently manufacturing a wedge-shaped steel plate is tedious and time-consuming, the inclination angle of the beam bottom of a prefabricated box beam is difficult to accurately control due to high temperature generated in the full welding process of the wedge-shaped steel plate and an embedded steel plate, and the production cost is low. Comprising an anti-rust shell, an adjusting base, a supporting base, a fine adjustment mechanism and an angle adjusting mechanism. The number of the adjusting bases is two, the two adjusting bases are fixedly connected into the rust-proof shell, and a set of through holes are formed in each adjusting base. The number of the supporting bases is two, the two supporting bases are both arranged above the anti-rust shell, and one ends of the two supporting bases are hinged to the anti-rust shell. The fine adjustment mechanism is arranged on the side face of the supporting base. The angle adjusting mechanism is arranged in the rust-proof shell. According to the utility model, the working process is simplified, the working time is shortened, the mounting efficiency is improved, and the control precision of the inclination of the bottom of the prefabricated box girder is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of a beam bottom slope adjusting device, and more specifically, particularly relates to a slope adjusting device for a bridge beam bottom. Background Art

[0002] In the construction of bridges, prefabricated box girders are often used. The appearance of prefabricated box girders is beautiful and generous, and it is also convenient to prefabricate them using assembled production. In actual use, when the slope of the roadbed is greater than 2%, the wedge steel plate welding method is often used to adjust the inclination angle of the prefabricated box girder. During the manufacturing process of the prefabricated box girder, the steel plate is embedded and flush with the bottom surface of the prefabricated box girder. Then, according to the slope of the longitudinal slope, a wedge-shaped steel plate with a thickness and angle that can meet the design requirements is made, and then the wedge-shaped steel plate is welded to the embedded steel plate, so as to achieve the purpose of controlling the installation angle of the prefabricated box girder and ensure that the prefabricated box girder is in a horizontal state after installation.

[0003] The existing application number is: CN202122180802.3. The utility model discloses an adjustment device for the longitudinal slope of the pre-embedded steel plate at the bottom of a T-beam. In the adjustment device, a track is arranged in a reserved groove of the T-beam pedestal and extends along the longitudinal direction of the T-beam; the slope adjustment support is slidably connected to the track, the lower plate is supported on the track, the upper plate is supported on the lower plate, the upper plate and the lower plate are bolted together and the longitudinal slope of the upper plate is adjusted to adapt to the longitudinal slope of the pre-embedded steel plate at the bottom of the beam, the fixing piece is connected to the upper plate, and the fixing piece has a wing portion supported on the edge of the reserved groove of the T-beam pedestal. This adjustment device solves the problem of inaccurate longitudinal slope of the steel plate at the bottom of the T-beam, ensures that the pre-embedded steel plate at the bottom of the beam can fit tightly with the support after the T-beam is installed, and the force is evenly distributed, which reduces the hazard of support bias and ensures the quality of the bridge project.

[0004] Based on the above, in actual construction, it is necessary to first measure the tilt angle of the prefabricated box girder and then make the wedge-shaped steel plate. The wedge-shaped steel plate is customized according to actual needs, has a specific thickness and angle, and cannot be made in advance. Therefore, when it is necessary to adjust the slope of the bottom of multiple groups of prefabricated box girders, it is necessary to take out time to make multiple groups of wedge-shaped steel plates with different thicknesses and angles. The process is relatively cumbersome and time-consuming, which affects the construction progress of the bridge. In addition, the wedge-shaped steel plate needs to be fully welded when welding with the embedded steel plate, and the high temperature generated during the full welding process can easily cause thermal stress deformation of the wedge-shaped steel plate and the embedded steel plate, making it difficult to accurately control the tilt angle of the bottom of the prefabricated box girder, affecting the installation quality of the prefabricated box girder. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a slope adjustment device for the bottom of a bridge beam, so as to solve the existing problem that when the bottom of multiple groups of prefabricated box beams need to be sloped, it is necessary to take out time to make multiple groups of wedge-shaped steel plates with different thicknesses and angles. The process is relatively cumbersome and time-consuming, which affects the construction progress of the bridge. In addition, the wedge-shaped steel plates need to be fully welded when welded to the embedded steel plates, and the high temperature generated during the full welding process can easily cause thermal stress deformation of the wedge-shaped steel plates and the embedded steel plates, thereby making it difficult to accurately control the inclination angle of the bottom of the prefabricated box beam, affecting the installation quality of the prefabricated box beam.

[0006] The purpose and effect of the slope adjustment device for the bottom of a bridge beam of the utility model are achieved by the following specific technical means:

[0007] A slope adjustment device for the bottom of a bridge beam, comprising a rust-proof housing, an adjustment base, a support base, a first fine-tuning slider, a second fine-tuning slider, a rectangular connecting piece, a fine-tuning mechanism and an angle adjustment mechanism;

[0008] There are two groups of adjustment bases, which are respectively fixedly connected to the inside of the rust-proof housing, and each of the two groups of adjustment bases is provided with a group of through holes;

[0009] There are two groups of support bases, both of which are arranged above the rust-proof shell, and one end of the two groups of support bases is hinged to the rust-proof shell respectively;

[0010] There are two groups of first fine-tuning sliders, and the two groups of first fine-tuning sliders slide on the sides of the two groups of support bases respectively;

[0011] There are two groups of second fine-tuning sliders, and the two groups of second fine-tuning sliders slide above the two groups of first fine-tuning sliders respectively;

[0012] There are eight groups of rectangular connecting pieces, which are respectively bolted to the sides of the two groups of first fine-tuning sliders and the two groups of second fine-tuning sliders. When the two groups of second fine-tuning sliders slide to a specified position above the two groups of first fine-tuning sliders, the two groups of second fine-tuning sliders and the two groups of first fine-tuning sliders can be fixedly connected together by using sixteen groups of bolts and eight groups of rectangular connecting pieces to prevent the two groups of second fine-tuning sliders from sliding.

[0013] The fine-tuning mechanism is arranged on the side of the supporting base;

[0014] The angle adjustment mechanism is arranged inside the rust-proof housing.

[0015] Further, the angle adjustment mechanism includes a height adjustment block and a first adjustment screw;

[0016] There are two groups of height adjustment blocks, which slide up and down inside the two groups of adjustment bases respectively. The two groups of height adjustment blocks are respectively arranged under the two groups of support bases, and slide grooves are provided under the two groups of height adjustment blocks;

[0017] The first adjusting screw is rotatably connected to the inner periphery of the through holes inside the two groups of adjusting bases, and the outer periphery of the first adjusting screw is provided with threads.

[0018] Furthermore, the angle adjustment mechanism further includes a bevel block nut and a first adjustment knob;

[0019] There are two groups of bevel block nuts, which are threadedly connected to the outer periphery of the first adjusting screw. The two groups of bevel block nuts and the first adjusting screw form a lead screw structure, and the two groups of bevel block nuts slide on the inner periphery of the slide grooves below the two groups of height adjusting blocks.

[0020] The first adjusting knob is fixedly connected to the outer periphery of one end of the first adjusting screw.

[0021] Further, the fine-tuning mechanism includes a fine-tuning base and a first oblique sliding block;

[0022] There are two groups of fine-tuning bases, and the two groups of fine-tuning bases are respectively fixedly connected to the side surfaces of the supporting base;

[0023] There are four groups of the first oblique sliding blocks, which slide on the sides of the two groups of fine-tuning bases respectively, and a group of threaded holes are provided inside the four groups of first oblique sliding blocks.

[0024] Furthermore, the fine-tuning mechanism further includes a limit plate, a second adjusting screw and a second adjusting knob;

[0025] There are two groups of limit plates, which are respectively fixedly connected to the sides of the two groups of fine-tuning bases, and a group of oblong notches are provided inside the two groups of limit plates;

[0026] There are two groups of the second adjusting screws, which are respectively arranged on the sides of the two groups of fine-tuning bases, and threads in opposite directions are arranged at both ends of the outer circumference of the two groups of second adjusting screws. The two groups of second adjusting screws are respectively threadedly connected with the four groups of first oblique sliders, and the two groups of second adjusting screws respectively form a screw structure with the four groups of first oblique sliders;

[0027] There are two groups of the second adjusting knobs, and the two groups of the second adjusting knobs are respectively fixedly connected to the outer peripheries of one ends of the two groups of the second adjusting screws.

[0028] Furthermore, the fine-tuning mechanism further includes a second oblique sliding block and a limit pin;

[0029] There are two groups of the second oblique sliding blocks, and the two groups of the second oblique sliding blocks slide on the sides of the two groups of supporting bases respectively;

[0030] There are two groups of limit pins, which are respectively fixedly connected to the side surfaces of the two groups of second oblique sliding blocks, and are respectively arranged on the inner circumferences of the oblong notches of the two groups of limit plates.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] The utility model sets an angle adjustment mechanism. When it is necessary to adjust the bottom slope of the prefabricated box beam, the first adjustment knob is rotated to make the other ends of the two groups of support bases tilt up through the transmission cooperation of the first adjustment screw, two groups of bevel block nuts and two groups of height adjustment blocks, so as to achieve the purpose of adjusting the bottom slope of the beam, and various slopes can be adjusted.

[0033] The utility model sets a fine-tuning mechanism, and the two groups of second adjusting knobs are rotated through the mechanical transmission cooperation of two groups of second adjusting screws, four groups of first oblique sliding blocks, two groups of second oblique sliding blocks, two groups of first fine-tuning sliding blocks, sixteen groups of bolts and eight groups of rectangular connecting pieces, so that the two groups of second fine-tuning sliding blocks can achieve fine-tuning of various angles, thereby reducing the influence of thermal stress deformation caused by high temperature.

[0034] The utility model avoids the process of manufacturing multiple groups of wedge-shaped steel plates with different thicknesses and angles, simplifies the work process and time, improves the installation efficiency, and improves the construction progress of the bridge. The bottom slope of the beam is adjusted by sliding the inclined block, which greatly improves the maximum positive pressure within the tolerable range of the slope adjustment device, improves the durability and practicality of the slope adjustment device, improves the control accuracy of the bottom inclination of the prefabricated box beam, and improves the installation quality of the prefabricated box beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0036] Figure 2 It is a structural schematic diagram of the support base of the utility model.

[0037] Figure 3 It is a schematic diagram of the first adjusting screw structure of the utility model.

[0038] Figure 4 It is a structural schematic diagram of the angle adjustment mechanism of the utility model.

[0039] Figure 5 It is a schematic diagram of the fine-tuning base structure of the utility model.

[0040] Figure 6 It is a structural schematic diagram of a first fine-tuning slider of the utility model.

[0041] Figure 7 It is a structural schematic diagram of the fine-tuning mechanism of the utility model.

[0042] Figure 8 It is a schematic diagram of the structure of the second adjusting screw of the utility model.

[0043] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0044] 1. Rust-proof shell; 2. Adjustment base; 3. Bevel block nut; 4. Height adjustment block; 5. First adjustment screw; 501. First adjustment knob; 6. Support base; 7. First fine-tuning slider; 8. Second fine-tuning slider; 9. Rectangular connecting piece; 10. Fine-tuning base; 11. Limiting piece; 12. Second adjustment screw; 13. Second adjustment knob; 14. First oblique slider; 15. Second oblique slider; 16. Limiting pin. DETAILED DESCRIPTION

[0045] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0046] Embodiment 1:

[0047] As attached Figure 1 To Attachment Figure 4 As shown:

[0048] The utility model provides a slope adjustment device for the bottom of a bridge beam, comprising a rust-proof housing 1, an adjustment base 2, a support base 6, a first fine-tuning slider 7, a second fine-tuning slider 8, a rectangular connecting piece 9 and an angle adjustment mechanism;

[0049] There are two groups of adjustment bases 2, and the two groups of adjustment bases 2 are respectively fixedly connected to the inside of the rust-proof housing 1, and a group of through holes are provided inside the two groups of adjustment bases 2;

[0050] There are two groups of support bases 6, both of which are arranged above the rust-proof housing 1, and one end of the two groups of support bases 6 is hinged to the rust-proof housing 1 respectively;

[0051] There are two groups of first fine-tuning sliders 7, and the two groups of first fine-tuning sliders 7 slide on the sides of the two groups of supporting bases 6 respectively;

[0052] There are two groups of second fine-tuning sliders 8, and the two groups of second fine-tuning sliders 8 slide above the two groups of first fine-tuning sliders 7 respectively;

[0053] There are eight groups of rectangular connecting pieces 9, which are respectively bolted to the sides of the two groups of first fine-tuning sliders 7 and the two groups of second fine-tuning sliders 8. When the two groups of second fine-tuning sliders 8 slide to the specified positions above the two groups of first fine-tuning sliders 7, sixteen groups of bolts and eight groups of rectangular connecting pieces 9 can be used to fix the two groups of second fine-tuning sliders 8 and the two groups of first fine-tuning sliders 7 together to prevent the two groups of second fine-tuning sliders 8 from sliding.

[0054] The angle adjustment mechanism is arranged inside the rust-proof housing 1 .

[0055] Wherein, the angle adjustment mechanism includes a height adjustment block 4 and a first adjustment screw 5;

[0056] There are two groups of height adjustment blocks 4, which slide up and down inside the two groups of adjustment bases 2 respectively. The two groups of height adjustment blocks 4 are respectively arranged under the two groups of support bases 6, and slide grooves are provided under the two groups of height adjustment blocks 4;

[0057] The first adjusting screw 5 is rotatably connected to the inner circumference of the through holes inside the two groups of adjusting bases 2, and the outer circumference of the first adjusting screw 5 is provided with threads.

[0058] The angle adjustment mechanism further includes a bevel block nut 3 and a first adjustment knob 501;

[0059] There are two groups of bevel block nuts 3, which are threadedly connected to the outer periphery of the first adjusting screw 5. The two groups of bevel block nuts 3 and the first adjusting screw 5 form a screw structure, and the two groups of bevel block nuts 3 slide on the inner periphery of the slide grooves below the two groups of height adjusting blocks 4.

[0060] The first adjusting knob 501 is fixedly connected to the outer periphery of one end of the first adjusting screw 5 .

[0061] The specific usage and function of the first embodiment are as follows:

[0062] During use, when the bottom slope of the prefabricated box girder needs to be adjusted, the first adjusting knob 501 is twisted, and the rotation of the first adjusting knob 501 drives the first adjusting screw 5 to rotate. The rotation of the first adjusting screw 5 causes the two sets of bevel block nuts 3 to slide. The sliding of the two sets of bevel block nuts 3 can cause the two sets of height adjustment blocks 4 to slide upward synchronously. The synchronous upward sliding of the two sets of height adjustment blocks 4 can cause the other ends of the two sets of support bases 6 to tilt, thereby achieving the purpose of adjusting the bottom slope of the beam. Various slopes can be adjusted, avoiding the process of making multiple sets of wedge-shaped steel plates with different thicknesses and angles, simplifying the work process and time, improving installation efficiency, and improving the construction progress of the bridge. The bottom slope of the beam is adjusted by sliding the bevel blocks, which greatly improves the maximum positive pressure within the tolerable range of the slope adjustment device, and improves the durability and practicality of the slope adjustment device.

[0063] Embodiment 2:

[0064] Based on the first embodiment, Figures 1 to 8 As shown, it also includes a fine-tuning mechanism, which is arranged on the side of the support base 6;

[0065] The fine-tuning mechanism includes a fine-tuning base 10 and a first oblique slider 14;

[0066] There are two groups of fine-tuning bases 10, and the two groups of fine-tuning bases 10 are respectively fixedly connected to the side surfaces of the supporting base 6;

[0067] There are four groups of first oblique sliding blocks 14 . The four groups of first oblique sliding blocks 14 slide on the sides of the two groups of fine-tuning bases 10 respectively. A group of threaded holes are opened inside the four groups of first oblique sliding blocks 14 .

[0068] The fine-tuning mechanism further includes a limit plate 11, a second adjusting screw 12 and a second adjusting knob 13;

[0069] There are two groups of limit plates 11, which are fixedly connected to the sides of the two groups of fine-tuning bases 10 respectively, and a group of oblong notches are provided inside the two groups of limit plates 11;

[0070] There are two groups of second adjusting screws 12, which are respectively arranged on the sides of the two groups of fine-tuning bases 10, and threads in opposite directions are arranged at both ends of the outer circumference of the two groups of second adjusting screws 12. The two groups of second adjusting screws 12 are respectively threadedly connected with the four groups of first oblique sliders 14, and the two groups of second adjusting screws 12 and the four groups of first oblique sliders 14 respectively form a screw structure;

[0071] There are two groups of second adjusting knobs 13 , and the two groups of second adjusting knobs 13 are fixedly connected to the outer peripheries of one ends of the two groups of second adjusting screws 12 .

[0072] The fine-tuning mechanism further includes a second oblique slider 15 and a limit pin 16;

[0073] There are two groups of second oblique sliding blocks 15, and the two groups of second oblique sliding blocks 15 slide on the sides of the two groups of supporting bases 6 respectively;

[0074] There are two groups of limit pins 16 , which are respectively fixedly connected to the side surfaces of the two groups of second oblique sliding blocks 15 , and are respectively arranged on the inner circumferences of the oblong notches of the two groups of limit plates 11 .

[0075] The specific usage and function of the second embodiment are as follows:

[0076] During use, when the embedded steel plate and the two sets of second fine-tuning sliders 8 need to be fully welded together, the high temperature generated during the full welding process causes thermal stress deformation of the embedded steel plate and the two sets of second fine-tuning sliders 8, and a slight deviation will appear in the inclination angle of the bottom of the prefabricated box girder. The two sets of second adjusting knobs 13 are twisted respectively. The rotation of the two sets of second adjusting knobs 13 drives the two sets of second adjusting screws 12 to rotate. The rotation of the two sets of second adjusting screws 12 causes the four sets of first oblique sliders 14 to slide inward at the same time. The simultaneous inward sliding of the four sets of first oblique sliders 14 will push the two sets of second oblique sliders 15 to slide obliquely upward, and the two The second group of oblique sliders 15 slides obliquely upward to push the two groups of first fine-tuning sliders 7 to slide obliquely upward, so that the two groups of second fine-tuning sliders 8 slide to a suitable position above the two groups of first fine-tuning sliders 7, and then the two groups of second fine-tuning sliders 8 and the two groups of first fine-tuning sliders 7 are fixedly connected together using sixteen groups of bolts and eight groups of rectangular connecting plates 9 to prevent the two groups of second fine-tuning sliders 8 from sliding. At this time, the two groups of second fine-tuning sliders 8 realize fine-tuning of multiple angles, reduce the influence of thermal stress deformation caused by high temperature, improve the control accuracy of the bottom inclination of the prefabricated box girder, and improve the installation quality of the prefabricated box girder.

Claims

1. A slope adjustment device for a bridge beam bottom, the slope adjustment device for a bridge beam bottom comprising a rust-proof housing (1), an adjustment base (2), a support base (6), a first fine-tuning slider (7), a second fine-tuning slider (8), a rectangular connecting piece (9), a fine-tuning mechanism and an angle adjustment mechanism; the adjustment base (2) comprises two groups, the two groups of adjustment bases (2) are respectively fixedly mounted inside the rust-proof housing (1), and the two groups of adjustment bases (2) are each provided with a group of through holes; the support base (6) comprises two groups, the two groups of support bases (6) are both arranged above the rust-proof housing (1), and one end of the two groups of support bases (6) are respectively hinged to the rust-proof housing (1); the characteristics are as follows: There are two groups of the first fine-tuning sliders (7), and the two groups of the first fine-tuning sliders (7) slide on the sides of the two groups of the supporting bases (6) respectively; there are two groups of the second fine-tuning sliders (8), and the two groups of the second fine-tuning sliders (8) slide on the top of the two groups of the first fine-tuning sliders (7) respectively; the fine-tuning mechanism is arranged on the side of the supporting base (6); the angle adjustment mechanism is arranged inside the rust-proof housing (1); there are eight groups of the rectangular connecting pieces (9), and the eight groups of the rectangular connecting pieces (9) are bolted to the sides of the two groups of the first fine-tuning sliders (7) and the two groups of the second fine-tuning sliders (8) respectively.

2. The slope adjustment device for the bottom of a bridge beam as claimed in claim 1, characterized in that: The angle adjustment mechanism comprises a height adjustment block (4) and a first adjustment screw (5); the height adjustment block (4) comprises two groups, the two groups of height adjustment blocks (4) slide up and down respectively inside the two groups of adjustment bases (2), the two groups of height adjustment blocks (4) are respectively arranged below the two groups of support bases (6), and a slide groove is provided below the two groups of height adjustment blocks (4); the first adjustment screw (5) is rotatably connected to the inner circumference of the through hole inside the two groups of adjustment bases (2).

3. The slope adjustment device for the bottom of a bridge beam as claimed in claim 2, characterized in that: The angle adjustment mechanism further comprises a bevel block nut (3) and a first adjustment knob (501); there are two groups of bevel block nuts (3), the two groups of bevel block nuts (3) are threadedly mounted on the outer periphery of the first adjustment screw (5), and the two groups of bevel block nuts (3) are slid on the inner periphery of the slide grooves below the two groups of height adjustment blocks (4); the first adjustment knob (501) is fixedly mounted on the outer periphery of one end of the first adjustment screw (5).

4. The slope adjustment device for the bottom of a bridge beam as claimed in claim 1, characterized in that: The fine-tuning mechanism comprises a fine-tuning base (10) and a first oblique sliding block (14); there are two groups of the fine-tuning base (10), and the two groups of the fine-tuning base (10) are respectively fixedly mounted on the side of the support base (6); there are four groups of the first oblique sliding blocks (14), and the four groups of the first oblique sliding blocks (14) slide on the side of the two groups of the fine-tuning base (10).

5. The slope adjustment device for the bottom of a bridge beam as claimed in claim 4, characterized in that: The fine-tuning mechanism further comprises a limit plate (11), a second adjustment screw (12) and a second adjustment knob (13); there are two groups of limit plates (11), the two groups of limit plates (11) are respectively fixedly mounted on the sides of the two groups of fine-tuning bases (10), and a group of oblong notches are provided inside the two groups of limit plates (11); there are two groups of second adjustment screws (12), the two groups of second adjustment screws (12) are respectively arranged on the sides of the two groups of fine-tuning bases (10), and the two ends of the outer circumference of the two groups of second adjustment screws (12) are provided with threads in opposite directions, and the two groups of second adjustment screws (12) are respectively threadedly connected to the four groups of first oblique sliding blocks (14); there are two groups of second adjustment knobs (13), the two groups of second adjustment knobs (13) are respectively fixedly mounted on the outer circumference of one end of the two groups of second adjustment screws (12).

6. The slope adjustment device for the bottom of a bridge beam as claimed in claim 4, characterized in that: The fine-tuning mechanism further comprises a second oblique slider (15) and a limit pin (16); there are two groups of the second oblique slider (15), and the two groups of the second oblique slider (15) slide on the sides of the two groups of support bases (6) respectively; there are two groups of the limit pin (16), and the two groups of the limit pin (16) are fixedly mounted on the sides of the two groups of the second oblique slider (15), and the two groups of the limit pin (16) are respectively arranged on the inner circumference of the oblong notches of the two groups of the limit plates (11).

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