Overturn-preventing supporting device for continuous beam bridge construction

Abstract

The utility model discloses an anti-overturning supporting device for continuous beam bridge construction, and belongs to the technical field of bridge construction. The overturning-preventing supporting device for continuous beam bridge construction comprises a bottom plate, a supporting column is fixed to the upper end of the bottom plate, a sliding rod capable of ascending and descending is arranged on the supporting column, a fixing base is fixed to the upper end of the sliding rod, a supporting plate is arranged at the upper end of the fixing base, a connecting base is fixed to the lower end of the supporting plate, and a rotating shaft rotationally connected with the fixing base is arranged on the connecting base; a gear is fixed to the rotating shaft, a sliding frame is slidably connected to the fixing base, a rack meshed with the gear is arranged on the sliding frame, a first lead screw is rotationally connected to the fixing base, a connecting plate is arranged on the sliding frame, the first lead screw penetrates through the connecting plate and is in threaded connection with the connecting plate, and the first lead screw is rotated to drive the supporting plate to turn around the rotating shaft. The inclination angle of the supporting plate can be adjusted according to the structure of the bottom of the bridge, the supporting plate can be better attached to the bottom of the bridge, and therefore the supporting stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to an anti-overturning support device for continuous beam bridge construction. Background Art

[0002] During the erection and assembly of a continuous beam bridge (such as the erection of an urban viaduct), in order to prevent the bridge from overturning and tipping over, it is necessary to support the bottom of the bridge to ensure the stability of the bridge during the erection process; however, the bottom of the bridge is not entirely horizontal, which means that the supporting surface that interacts with the supporting structure may be an inclined surface; in order to ensure the support stability, it is necessary to adjust the support angle of the supporting structure according to the bottom structure of the bridge on site. For this purpose, an anti-overturning support device for continuous beam bridge construction is proposed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an anti-overturning support device for continuous beam bridge construction, which solves the problems in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] The anti-overturning support device for the construction of a continuous beam bridge comprises a bottom plate, a support column is fixed to the upper end of the bottom plate, a sliding rod capable of lifting and lowering is arranged on the support column, a fixed seat is fixed to the upper end of the sliding rod, a support plate is arranged at the upper end of the fixed seat, a connecting seat is fixed to the lower end of the support plate, and a rotating shaft rotatably connected to the fixed seat is arranged on the connecting seat;

[0006] A gear is fixed on the rotating shaft, a sliding frame is slidably connected to the fixed seat, a rack meshing with the gear is arranged on the sliding frame, a first screw rod is rotatably connected to the fixed seat, a connecting plate is arranged on the sliding frame, the first screw rod penetrates the connecting plate and is threadedly connected to the connecting plate.

[0007] Furthermore, a walking mechanism is arranged on the support column, and the walking mechanism includes a lifting frame that can be raised and lowered, and four universal wheels are arranged at the lower end of the lifting frame. Controlling the lifting frame to descend can make the four universal wheels contact the ground at the same time and lift the bottom plate off the ground.

[0008] Furthermore, a mounting plate is fixed on the support column, and a cylinder is fixed on the mounting plate to drive the lifting frame to move up and down.

[0009] Furthermore, four vertically penetrating clearance grooves are provided on the bottom plate to facilitate the lifting and lowering tracks of the four universal wheels.

[0010] Furthermore, the thread lead angle of the first screw is smaller than the equivalent friction angle.

[0011] Furthermore, two guide rods are arranged on the sliding frame, and the guide rods penetrate the fixing seat and are slidably connected with the fixing seat.

[0012] Furthermore, the sliding rod is slidably connected to the support column in the vertical direction, a first fixed plate is provided on one side of the sliding rod, and two second fixed plates distributed in the vertical direction are provided on one side of the support column. A second screw rod is rotatably connected between the two second fixed plates, and the second screw rod penetrates the first fixed plate along the vertical direction and is threadedly connected to the first fixed plate.

[0013] Furthermore, the thread lead angle of the second screw is smaller than the equivalent friction angle.

[0014] Beneficial effects of the utility model:

[0015] 1. A support column is fixed on the bottom plate, a sliding rod capable of being raised and lowered is arranged on the support column, a support assembly is arranged on the upper end of the sliding rod, a support plate capable of being hinged to a fixed seat is arranged in the support assembly, and a first screw rod is arranged to drive the sliding frame to slide, thereby driving the meshing action of the rack and the gear to drive the support plate to flip around the rotating shaft, so as to adjust the inclination angle of the support plate according to the structure of the bottom of the bridge, so that the support plate can better fit with the bottom of the bridge, thereby improving the stability of the support.

[0016] 2. A walking mechanism is arranged on the support column, and a lifting frame that can be raised and lowered is arranged in the walking mechanism. Four universal wheels are arranged at the lower end of the lifting frame. By controlling the lifting of the lifting frame, the universal wheels can be brought into contact with the ground to facilitate adjustment of the support position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the support device of the utility model;

[0019] Figure 2 It is a schematic diagram of the support column structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the support assembly structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the support plate structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the sliding frame of the utility model;

[0023] Figure 6It is a schematic diagram of the structure of the walking mechanism of the utility model. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 As shown, the anti-overturning support device for the construction of a continuous beam bridge includes a bottom plate 1, a support column 2 is fixed to the upper end of the bottom plate 1, a sliding rod 3 that can be raised and lowered is arranged on the support column 2, and a support assembly 6 is arranged on the upper end of the sliding rod 3, and the support assembly 6 can contact the bottom of the bridge to support the bridge;

[0026] like Figures 3 to 5 As shown, the support assembly 6 includes a fixed seat 61 fixed to the upper end of the sliding rod 3, a support plate 62 is provided at the upper end of the fixed seat 61, a connecting seat 621 is fixed at the lower end of the support plate 62, and coaxial rotating shafts 622 are provided on both sides of the connecting seat 621, and the two rotating shafts 622 are both rotatably connected to the fixed seat 61; a gear 63 is fixed on each of the two rotating shafts 622, and a sliding frame 64 is slidably connected to the fixed seat 61. Two racks 641 are provided on the sliding frame 64, and the two racks 641 are respectively meshed with the two gears 63. A first screw rod 65 is rotatably connected to the fixed seat 61. A connecting plate 643 is provided on the sliding frame 64. The first screw rod 65 penetrates the connecting plate 643 and is threadedly connected to the connecting plate 643. By rotating the first screw rod 65, the sliding frame 64 can slide, thereby driving the support plate 62 to flip around the rotating shaft 622, so as to adjust the inclination angle of the support plate 62 according to the structure of the bottom of the bridge, so that the support plate 62 can better fit with the bottom of the bridge, thereby improving the stability of the support;

[0027] It is worth mentioning that the first screw rod 65 needs to have a self-locking capability, that is, the thread lead angle of the first screw rod 65 is smaller than the equivalent friction angle, so as to ensure that the angle of the support plate 62 remains stable after adjustment;

[0028] In addition, in this embodiment, two guide rods 642 are provided on the sliding frame 64 , and the guide rods 642 penetrate the fixing seat 61 and are slidably connected to the fixing seat 61 , thereby realizing the sliding connection between the sliding frame 64 and the fixing seat 61 .

[0029] In this embodiment, the sliding rod 3 is slidably connected to the support column 2 in the vertical direction, and a first fixing plate 31 is provided on one side of the sliding rod 3. Figure 2As shown, one side of the support column 2 is provided with two second fixing plates 21 distributed in a vertical direction, and a second screw rod 4 is rotatably connected between the two second fixing plates 21. The second screw rod 4 penetrates the first fixing plate 31 along the vertical direction and is threadedly connected to the first fixing plate 31. By rotating the second screw rod 4, the sliding rod 3 can be driven to move up and down, so as to facilitate the adjustment of the height of the support plate 62 according to the erection height of the bridge;

[0030] It is also necessary to mention that the second screw rod 4 also needs to have a self-locking capability, that is, the thread lead angle of the second screw rod 4 is smaller than the equivalent friction angle, to ensure that the support plate 62 remains stable after the height is adjusted to ensure the support effect.

[0031] Of course, the method of driving the sliding rod 3 to rise and fall includes but is not limited to the second screw rod 4 and other structures in this embodiment. In some embodiments, the sliding rod 3 can also be directly driven to rise and fall by setting linear driving components such as telescopic rods and hydraulic cylinders on the support column 2.

[0032] The support column 2 is provided with a walking mechanism 5 to assist the walking displacement of the support device and facilitate the adjustment of the support position; Figure 6 As shown, the walking mechanism 5 includes a lifting frame 52 that can be raised and lowered, and four universal wheels 53 are arranged at the lower end of the lifting frame 52. By controlling the lifting frame 52 to descend, the four universal wheels 53 are in contact with the ground at the same time, and the bottom plate 1 is lifted off the ground, so that the displacement of the supporting device can be facilitated; when the supporting device reaches the specified position, the lifting frame 52 is controlled to rise, so that the four universal wheels 53 are lifted off the ground, and the bottom plate 1 is in contact with the ground, and then the sliding rod 3 is controlled to rise and fall and the support plate 62 is tilted and flipped, so that the bridge can be supported;

[0033] In this embodiment, a mounting plate 22 is provided on the support column 2, and a cylinder 51 is fixed on the mounting plate 22. The cylinder 51 can directly drive the lifting frame 52 to move up and down; of course, in some embodiments, the cylinder 51 can also be replaced by a hydraulic cylinder, a telescopic rod or other linear driving component, which can also drive the lifting frame 52 to move up and down.

[0034] In addition, in this embodiment, four clearance grooves are provided on the bottom plate 1 , and the clearance grooves penetrate the bottom plate 1 in the vertical direction to facilitate the position switching of the universal wheels on the upper and lower sides of the bottom plate 1 .

[0035] Working principle:

[0036] By fixing the support column 2 on the bottom plate 1, a sliding rod 3 capable of being raised and lowered is arranged on the support column 2, a support assembly 6 is arranged on the upper end of the sliding rod 3, a support plate 62 capable of being hinged to the fixed seat 61 is arranged in the support assembly 6, and a first screw rod 65 is arranged to drive the sliding frame 64 to slide, thereby driving the meshing action of the rack 641 and the gear 63 to drive the support plate 62 to flip around the rotating shaft 622, so as to adjust the inclination angle of the support plate 62 according to the structure of the bottom of the bridge, so that the support plate 62 can better fit with the bottom of the bridge, thereby improving the stability of the support. By arranging a walking mechanism 5 on the support column 2, and arranging a lifting frame 52 capable of being raised and lowered in the walking mechanism 5, four universal wheels are arranged at the lower end of the lifting frame 52, and by controlling the lifting and lowering of the lifting frame 52, the universal wheels can be brought into contact with the ground, so as to facilitate the adjustment of the support position.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A continuous beam bridge construction anti-overturning support device, comprising a bottom plate (1), characterized in that: A support column (2) is fixed to the upper end of the bottom plate (1), a sliding rod (3) capable of being raised and lowered is arranged on the support column (2), a fixing seat (61) is fixed to the upper end of the sliding rod (3), a supporting plate (62) is arranged on the upper end of the fixing seat (61), a connecting seat (621) is fixed to the lower end of the supporting plate (62), and a rotating shaft (622) rotatably connected to the fixing seat (61) is arranged on the connecting seat (621); A gear (63) is fixed on the rotating shaft (622); a sliding frame (64) is slidably connected to the fixed seat (61); a rack (641) meshing with the gear (63) is provided on the sliding frame (64); a first screw rod (65) is rotatably connected to the fixed seat (61); a connecting plate (643) is provided on the sliding frame (64); the first screw rod (65) passes through the connecting plate (643) and is threadedly connected to the connecting plate (643).

2. The anti-overturning support device for continuous beam bridge construction according to claim 1 is characterized in that: The support column (2) is provided with a walking mechanism (5), which comprises a lifting frame (52) capable of being raised and lowered, and four universal wheels (53) are provided at the lower end of the lifting frame (52). By controlling the lifting frame (52) to descend, the four universal wheels (53) can be brought into contact with the ground at the same time, thereby lifting the bottom plate (1) off the ground.

3. The anti-overturning support device for continuous beam bridge construction according to claim 2 is characterized in that: A mounting plate (22) is fixed on the support column (2), and a cylinder (51) is fixed on the mounting plate (22) to drive the lifting frame (52) to move up and down.

4. The anti-overturning support device for continuous beam bridge construction according to claim 2 is characterized in that: The bottom plate (1) is provided with four vertically penetrating clearance grooves to facilitate the lifting and lowering tracks of the four universal wheels (53).

5. The anti-overturning support device for continuous beam bridge construction according to claim 1 is characterized in that: The thread lead angle of the first screw rod (65) is smaller than the equivalent friction angle.

6. The anti-overturning support device for continuous beam bridge construction according to claim 1 is characterized in that: The sliding frame (64) is provided with two guide rods (642), and the guide rods (642) penetrate the fixing seat (61) and are slidably connected to the fixing seat (61).

7. The anti-overturning support device for continuous beam bridge construction according to claim 1 is characterized in that: The sliding rod (3) is slidably connected to the support column (2) in the vertical direction; a first fixing plate (31) is provided on one side of the sliding rod (3); two second fixing plates (21) distributed in the vertical direction are provided on one side of the support column (2); a second screw rod (4) is rotatably connected between the two second fixing plates (21); the second screw rod (4) passes through the first fixing plate (31) in the vertical direction and is threadedly connected to the first fixing plate (31).

8. The anti-overturning support device for continuous beam bridge construction according to claim 7 is characterized in that: The thread lead angle of the second screw rod (4) is smaller than the equivalent friction angle.

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