A mobile support structure for cross-line construction of curved continuous steel box beams

Abstract

The present invention discloses a mobile support structure for the cross-line construction of a curved continuous steel box girder, which belongs to the technical field of construction supports. A translation seat is set to allow the frame to slide horizontally. In the supporting working state, one of the supports and the turntable on the translation seat is fully supported on the bottom of the support, and the other support is responsible for auxiliary support. When the entire frame needs to slide horizontally, the seat body is rotated to a required angle, and the unsupported support is rotated so that the support is supported on the ground. The rotation angles of several seat bodies need to be the same so that the slide grooves of several seat bodies are parallel to each other. At this time, the frame body can be pushed so that the supports of the frame body leave the top surface of the turntable and slide along the bottom surface of the slide groove and finally slide to the top surface of another turntable. This device is used for the horizontal fine movement of the frame body along the line during cross-line construction. It is not restricted by space, is flexible to adjust, and has a more stable support structure. The entire frame body can always be in a horizontal and non-deflected state when moving.

Description

Technical Field

[0001] The invention belongs to the technical field of construction supports, and in particular relates to a movable support structure for cross-line construction of curved continuous steel box girders. Background Art

[0002] In the construction of curved continuous steel box girder cross-line, supports need to be built on both sides of the highway at the required cross-line to carry out cross-line construction of the curved box girder above the highway. When supporting the curved steel box girder, this support needs to be moved slightly in multiple directions. This support is located on both sides of the highway. When adjusting this support, it cannot touch the sides of the highway. This support needs to be located under the curved steel box girder at all times, and the ground on both sides of the highway is uneven. Conventional supporting mobile supports generally adopt wheeled supports. Although they are flexible to move, the support is not stable. On the uneven bottom surface, the mobile support will be deflected. In addition, the wheeled supports require a large adjustment space when moving, which is not suitable for the sides of the highway with space restrictions. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide a mobile support structure for the cross-line construction of a curved continuous steel box girder, which can be adjusted and moved flexibly in a small space and ensure horizontality at any time.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention includes a frame body, the bottom of the frame body includes a frame-shaped seat, the bottom surface of the frame-shaped seat is fixedly provided with a plurality of supporting legs, and also includes a translation seat with the same number as the supporting legs, the translation seat includes a seat body, two turntables and two supports, the seat body is elongated, a slide groove is provided on the top surface of the seat body, the two turntables are rotatably arranged at both ends of the support, the top surface of the turntable is exposed from the bottom surface of the slide groove, the top surface of the turntable is at the same height as the bottom surface of the slide groove, the turntable is coaxially provided with a vertical threaded hole, the support includes a seat plate and a threaded column vertically provided on the top surface of the seat plate, the threaded column is connected to the threaded hole, the seat plate is located below the support, the supporting legs are slidably arranged on the bottom surface of the slide groove, and when the supporting legs are located at one end of the slide groove, the turntable is supported on the bottom of the supporting legs.

[0006] Furthermore, arc-shaped plates extend upward at both ends of the slide groove, and a rotating drum is provided on the support leg for coaxial rotation. The lower section of the rotating drum is engaged with the arc-shaped plate gear, and the upper section of the rotating drum is provided with sprockets and also includes a chain. The chain is simultaneously wrapped around the outside of all the support legs, and the chain is simultaneously engaged with all the rotating drums. Moving the sprockets causes all the rotating drums to rotate simultaneously.

[0007] Furthermore, it includes a driving rotating tooth rotatably arranged at the bottom of the frame-shaped seat, the driving rotating tooth is engaged with the chain, the driving rotating tooth is coaxially provided with a rotating shaft, and a rotating handle is provided at the end of the rotating shaft.

[0008] Furthermore, a level is fixed on the side of the translation seat.

[0009] Furthermore, a hexagonal countersunk hole is provided at the top of the threaded column, the threaded hole passes through the turntable, and the threaded hole leaks out from the top surface of the turntable.

[0010] The beneficial effects of the present invention are:

[0011] The present invention provides a horizontal sliding seat for the frame body. When in the supporting working state, one of the supports and the turntable on the translation seat is fully supported on the bottom of the support, and the other support is responsible for auxiliary support. When the entire frame body needs to slide horizontally, the seat body is rotated to the required angle, and the support is rotated so that the support is supported on the ground. The rotation angles of several seat bodies need to be the same, so that the slide grooves of several seat bodies are parallel to each other. At this time, the frame body can be pushed to make the support of the frame body leave the top surface of the turntable and slide along the bottom surface of the slide groove, and finally slide to the top surface of another turntable. This device is used for the horizontal fine movement of the frame body along the line during cross-line construction, without being restricted by space, and is relatively Compared with the wheel-type support bracket, this device can achieve position transfer without large-scale movement during short-distance and multi-directional horizontal displacement, and is flexible to adjust. Through multiple adjustments of the seat angle and multiple movements of the frame, the frame can be moved to any position in a short distance. Compared with the ball-wheel support that can also move short distance and short range, the support structure of this frame is more stable; and during each translation process, the frame can be kept horizontal and not tilted. When the ground is relatively uneven and there are depressions and protrusions, the vertically adjustable support can ensure that the slide groove in each translation seat is in a horizontal state at any time, so that the entire frame is always in a horizontal and non-skewed state.

[0012] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0014] Figure 1 This is an overall schematic diagram of the mobile support structure according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0016] Figure 3 for Figure 1 Sectional view at point A

[0017] Figure 4 for Figure 1 Cross-sectional view at point B;

[0018] Figure 5 A top view of a translation seat according to an embodiment of the present invention;

[0019] The markings in the accompanying drawings are as follows: 1. Frame; 2. Frame-shaped seat; 3. Support leg; 31. Rotating drum; 32. Chain; 4. Translation seat; 41. Seat body; 411. Slide groove; 412. Arc plate; 42. Turntable; 421. Threaded hole; 43. Support; 431. Seat plate; 432. Threaded column; 5. Active rotating gear; 51. Rotating shaft; 52. Rotating handle; 6. Level. DETAILED DESCRIPTION

[0020] like Figures 1 to 5 As shown, the present invention discloses a mobile support structure for the construction of a curved continuous steel box girder across a line, such as Figure 1 As shown, it includes a frame 1, which is a steel frame. The structural shape can be set according to construction needs, such as adding ladders, work platforms, lifting platforms and other structures. In the construction of curved continuous steel box girder spans, this mobile bracket is placed next to the required span, refer to Figure 1 The bottom of the frame 1 includes a frame-shaped base 2, which is integrally formed with the frame 1 and is a square iron frame, positioned horizontally. A support leg 3 is fixed to the bottom surface of each of the four corners of the frame-shaped base 2. The bottom surface of the support leg 3 is a circular surface, and the support leg 3 is a solid frustum. It also includes a number of translation seats 4 equal to the number of the support legs 3, and each support leg 3 is supported by a translation seat 4. Figure 2 and Figure 3 The translation seat 4 includes a seat body 41, two turntables 42 and two supports 43. The seat body 41 is long and has a sliding groove 411 downwardly provided on the top surface of the seat body 41. The two turntables 42 are respectively rotatably arranged at the two ends of the support 43. Figure 3The turntable 42 is rotatably arranged in the support 43, and its horizontal and vertical movements are limited, and it can only rotate. The top surface of the turntable 42 is exposed from the bottom surface of the slide groove 411, and the top surface of the turntable 42 is at the same height as the bottom surface of the slide groove 411. The top surface of the turntable 42 just forms the same plane as the bottom surface of the slide groove 411; the turntable 42 is coaxially provided with a vertical threaded hole 421, and the support 43 includes a disc-shaped seat plate 431 and a threaded column 432 vertically arranged on the top surface of the seat plate 431, the threaded column 432 is connected to the threaded hole 421, and the seat plate 431 Located below the support 43, the support leg 3 is slidably arranged on the bottom surface of the slide groove 411, wherein a disc can be provided at the bottom end of the support leg 3, and a strip groove for horizontal sliding of the support leg 3 is provided in the slide groove 411, so that the support leg 3 is restricted from vertical movement, so that the bottom surface of the support leg 3 always contacts the slide groove 411 surface, and the support leg 3 slides smoothly on the slide groove 411 surface. When the support leg 3 is located at one end of the slide groove 411, the turntable 42 is supported on the bottom of the support leg 3, and the exposed surface of the turntable 42 is completely supported on the bottom surface of the support 43, avoiding the bottom surface of the support 43 from being pressed on the slide groove 411 surface.

[0021] In this structure, a translation seat 4 is provided to allow the frame 1 to slide horizontally. When in the supporting working state, one of the supports 43 and the turntable 42 on the translation seat 4 is fully supported on the bottom of the support leg 3, and the other support 43 is responsible for auxiliary support. When the entire frame 1 needs to slide horizontally, the seat 41 is rotated to the required angle, and the unsupported support 43 is rotated to support the support 43 on the ground. The rotation angles of several seats 41 need to be the same, so that the slide grooves 411 of several seats 41 are parallel to each other. At this time, the frame 1 can be pushed to make the support leg 3 of the frame 1 leave the top surface of the turntable 42, slide along the bottom surface of the slide groove 411, and finally slide to the top surface of another turntable 42; this device is used for the frame 1 along the line during cross-line construction. Slight horizontal movement without space restriction, compared with the wheel-type support bracket, this device can achieve position transfer without large-scale movement during short-distance multi-directional horizontal displacement, and the adjustment is flexible. Through multiple adjustments of the angle of the seat 41 and multiple movements of the frame 1, the frame 1 can be moved to any position in a short distance. Compared with the ball-wheel support that can also move in a short distance and a short range, the support structure of this frame 1 is more stable; and during each translation process, the frame 1 can be kept horizontal and not tilted. When the ground is relatively uneven and there are concave and convex states, the vertically adjustable support 43 can ensure that the slide groove 411 in each translation seat 4 is in a horizontal state at any time, so that the entire frame 1 is always in a horizontal and non-skewed state.

[0022] In a further solution, Figure 2 and Figure 3As shown, arc-shaped plates 412 extend upward at both ends of the slide groove 411, and the arc angle of the arc-shaped plate 412 is less than 180°. Meshing teeth are provided on the inner side of the arc-shaped plate 412. A rotating drum 31 is provided on the support leg 3 for coaxial rotation. The rotating drum 31 rotates coaxially on the support leg 3 and is restricted in movement in the vertical and horizontal directions. The lower section of the rotating drum 31 is meshed with the gear of the arc-shaped plate 412, and the upper section of the rotating drum 31 is provided with sprockets, and also includes an annular chain 32. The chain 32 is simultaneously wrapped around the outside of all the support legs 3, and the chain 32 is simultaneously meshed with all the rotating drums 31, pulling the sprockets to make all the rotating drums 31 rotate simultaneously.

[0023] This device is also provided with a rotation transmission structure of several legs 3, which simultaneously drives the rotation of the drums 31 on the four legs 3 through a chain 32, so that the rotation of all the drums 31 is synchronized. When the legs 3 are supported by the turntable 42 and the support 43, the legs 3 are located at one end of the translation seat 4. At this time, the drum 31 is engaged with the arc plate 412, the drum 31 rotates, and the seat body 41 engaged with the drum 31 is driven by the drum 31, and all the seat bodies 41 rotate synchronously. This mechanism can ensure that all the seat bodies The rotation angles of 41 are synchronized and always kept parallel, and by setting a chain 32-type unified transmission, all the seat bodies 41 can be rotated at one time, avoiding the rotation angle error between each seat body 41, and ensuring that the frame body 1 moves smoothly on all translation seats 4. When the frame body 1 moves and the support leg 3 moves along the slide groove 411 to the other end of the seat body 41, the rotating drum 31 engages with the arc plate 412 at the other end again, providing a leading state for the next rotation of the seat body 41 and the sliding of the support leg 3.

[0024] In a further solution, Figure 4 As shown, it includes a driving tooth 5 that is rotatably disposed at the bottom of the frame-shaped seat 2. The driving tooth 5 is engaged with the chain 32. The driving tooth 5 is coaxially provided with a rotating shaft 51, and a rotating handle 52 is provided at the end of the rotating shaft 51. By adding this structure, the rotation of the seat body 41 is made easier, and lubricating oil contamination caused by directly pulling the chain 32 is avoided. By manually rotating the handle 52, the driving tooth 5 is rotated, and the driving tooth 5 drives the chain 32 to move, thereby driving multiple seats 41 to rotate simultaneously.

[0025] In a further solution, Figure 1 As shown, a level 6 is fixed to the side of the translation seat 4. By observing the level 6, it can be assisted to keep the seat 41 level when the support 43 is rotated so that the two supports 43 support the seat 41 at the same time. The level 6 serves as an auxiliary device for the level of the seat 41, further improving the accuracy and convenience of adjustment.

[0026] In a further solution, Figure 5As shown, a hexagonal countersunk hole is provided at the top of the threaded column 432, and the threaded hole 421 passes through the turntable 42. The threaded hole 421 leaks out from the top surface of the turntable 42. After rotating the seat body 41 at an angle, the support 43 with the hexagonal countersunk hole exposed is an adjustable support 43. The support 43 can be rotated and adjusted by directly inserting a tool into the hexagonal countersunk hole.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A mobile support structure for the construction of a curved continuous steel box girder across a line, characterized by: The invention comprises a frame body (1), wherein the bottom of the frame body (1) comprises a frame-shaped seat (2), the bottom surface of the frame-shaped seat (2) is fixedly provided with a plurality of supporting legs (3), and further comprises a translation seat (4) having the same number as the supporting legs (3), wherein the translation seat (4) comprises a seat body (41), two turntables (42) and two supports (43), wherein the seat body (41) is in the shape of an elongated strip, a slide groove (411) is provided on the top surface of the seat body (41), and the two turntables (42) are respectively rotatably arranged at the two ends of the supports (43), and the top surface of the turntable (42) is exposed from the bottom surface of the slide groove (411). The top surface of (42) is at the same height as the bottom surface of the slide groove (411); the turntable (42) is coaxially provided with a vertical threaded hole (421); the support (43) includes a seat plate (431) and a threaded column (432) vertically arranged on the top surface of the seat plate (431); the threaded column (432) is connected to the threaded hole (421); the seat plate (431) is located below the support (43); the support leg (3) is slidably arranged on the bottom surface of the slide groove (411); when the support leg (3) is located at one end of the slide groove (411), the turntable (42) is supported on the bottom of the support leg (3).

2. The mobile support structure for cross-line construction of a curved continuous steel box girder according to claim 1 is characterized by: Arc-shaped plates (412) extend upward from both ends of the slide groove (411); a rotating drum (31) is coaxially rotated on the support leg (3); the lower section of the rotating drum (31) is meshed with the gear of the arc-shaped plate (412); the upper section of the rotating drum (31) is provided with sprockets and also includes a chain (32); the chain (32) surrounds the outside of all the support legs (3) at the same time; the chain (32) is meshed with all the rotating drums (31) at the same time; and the sprockets are moved to make all the rotating drums (31) rotate at the same time.

3. The movable support structure for cross-line construction of a curved continuous steel box girder according to claim 2 is characterized by: The invention comprises an active rotating tooth (5) rotatably arranged at the bottom of the frame-shaped seat (2), wherein the active rotating tooth (5) is engaged with the chain (32), and a rotating shaft (51) is coaxially provided on the active rotating tooth (5), and a rotating handle (52) is provided at the end of the rotating shaft (51).

4. The movable support structure for cross-line construction of a curved continuous steel box girder according to claim 1 is characterized in that: A level (6) is fixed on the side of the translation seat (4).

5. The movable support structure for cross-line construction of a curved continuous steel box girder according to claim 1 is characterized in that: A hexagonal countersunk hole is provided at the top of the threaded column (432), the threaded hole (421) passes through the turntable (42), and the threaded hole (421) leaks out from the top surface of the turntable (42).

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