A height-adjustable support foot for bridge rotation and its usage method

Abstract

The present invention discloses an adjustable-height supporting leg for bridge rotation and its using method. The supporting leg includes a movable supporting cylinder placed on the lower bearing platform. The movable supporting cylinder is in a state where its height position can be adjusted up and down. A support leg is arranged in the movable supporting cylinder, and the upper part of the support leg is fixed to the upper bearing platform. A supporting structure for supporting the support leg is arranged in the movable supporting cylinder. A locking device is arranged at the outer wall of the support leg and the movable supporting cylinder. Its using method includes the following steps: Insert the fixed supporting cylinder into the movable supporting cylinder and fix it with the locking device; when the bridge rotation construction is carried out, remove the cover, the steel sand flows out of the sand cylinder, lift the movable supporting cylinder, keep a distance between the bottom surface of the walking plate and the slideway, insert the sliding plate, and implement the bridge rotation. The present invention combines the functions of the supporting leg and the sand box for the rotating bridge, can be used as both a temporary support and a safety support leg during the rotation process, saves the overall steel consumption, and has good economy.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and particularly relates to a support leg for bridge rotation with adjustable height and its using method. Background Art

[0002] At present, during the construction of a rotating bridge, in order to ensure the safety during the implementation of bridge rotation, support legs and slideways are installed around the rotating ball hinge, and a sliding plate is laid between the support legs and the slideways to reduce the rotational friction resistance.

[0003] During the construction of a rotating bridge, in order to avoid the influence of unbalanced moment during construction on the safety of the bridge, temporary support sand boxes are set around the ball hinge and around the support legs to support the construction load of the upper and lower bearing platforms. At this time, there is always a certain distance between the support legs and the slideways. Before the sand boxes are removed, the support legs do not play a supporting role, and the support legs only play an insurance role during the bridge rotation process, with low utilization rate and resulting in waste of resources. Summary of the Invention

[0004] The invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a support leg for bridge rotation with adjustable height and its using method.

[0005] The technical solution of the invention is: a support leg for bridge rotation with adjustable height, including a movable support cylinder placed on the lower bearing platform. The movable support cylinder is in a state where its height position can be adjusted up and down. A support leg is arranged in the movable support cylinder, the upper part of the support leg is fixed to the upper bearing platform, a support structure for supporting the support leg is arranged in the movable support cylinder, and a locking device is arranged at the outer walls of the support leg and the movable support cylinder.

[0006] Furthermore, a cylindrical protrusion is arranged at the lower part of the support leg, and a limiting groove is formed at the upper end of the sand cylinder of the movable support cylinder, and the cylindrical protrusion is inserted into the limiting groove.

[0007] Furthermore, the support structure includes steel sand, and the steel sand is filled in the movable support cylinder to support the support leg.

[0008] Furthermore, the support structure includes a limiting cylinder. When the limiting cylinder supports the support leg, it can lift the movable support cylinder upward, so that a sliding plate can be placed at the lower end of the movable support cylinder.

[0009] Furthermore, the support leg is filled with concrete.

[0010] Furthermore, the locking device includes fixed seats arranged at the outer walls of the support leg and the movable support cylinder, and bolt-nut assemblies are passed through the fixed seats.

[0011] Furthermore, the fixed seat includes a locking and fixing plate perpendicular to the support leg and the movable support cylinder. A through hole is formed in the locking and fixing plate, and a long bolt passes through the locking and fixing plate and then a nut is screwed on for fixation.

[0012] Furthermore, the support leg includes a support plate, and a fixed support cylinder vertically passing through is arranged in the support plate. A bottom plate is arranged at the bottom of the fixed support cylinder.

[0013] Furthermore, the movable support cylinder includes a walking plate, and sand cylinders corresponding to the fixed support cylinders one by one are arranged on the walking plate.

[0014] A using method of a support leg for bridge rotation with adjustable height includes the following steps:

[0015] ⅰ. Insert the fixed support cylinder of the support leg into the sand cylinder filled with steel sand inside the movable support cylinder. After compaction, fix it with a locking device to keep the distance between the bottom plate and the limit cylinder of the movable support cylinder;

[0016] ⅱ. When bridge rotation construction is carried out, remove the cover, the steel sand flows out from the sand cylinder, the bottom plate contacts the limit cylinder inside the movable support leg, rotate the nut, lift the movable support cylinder so that there is a distance between the bottom surface of its walking plate and the slideway, insert the slide plate, and implement bridge rotation, playing a role of safe support for rotation.

[0017] The beneficial effects of the present invention:

[0018] Steel sand is arranged between the support leg and the movable support cylinder of the present invention and is locked and fixed with a locking device. During the construction of the rotating bridge, it can be used as a temporary support to offset the potential safety hazards caused by the unbalanced moment of the bridge. When bridge rotation construction is carried out, the steel sand is taken out, the bottom plate contacts the limit cylinder inside the movable support leg, rotate the nut of the locking device, lift the movable support leg so that there is a certain distance between the bottom surface of its walking plate and the slideway, insert the slide plate, and implement bridge rotation, playing a role of safe support for rotation.

[0019] In the use process of the present invention, by setting the cylindrical protrusions and limit grooves, on the one hand, the structure is convenient for installation, and on the other hand, it can play a limiting role to prevent the offset between the fixed support cylinder and the movable support cylinder after the locking device is locked, and it is also convenient for adjustment. In addition, by uniformly fixing the limit cylinders on the upper surface of the bottom end of the sand cylinder, the situation that the steel sand is unevenly distributed in the sand cylinder caused by using partitions in the existing means can be solved.

[0020] The present invention combines the functions of the support leg and the sand box for the rotating bridge. It can be used both as a temporary support and as a safe support leg during the rotation process, saving the overall steel consumption and having good economy. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure diagram of the present invention;

[0022] Figure 2 Structural schematic diagram of the support leg in the support state

[0023] Figure 3 Structural schematic diagram of the outrigger in the present invention

[0024] Figure 4 is Figure 3 front view of

[0025] Figure 5 Top view of the movable support cylinder in the present invention

[0026] Figure 6 Structural schematic diagram of the sand cylinder in the present invention

[0027] Wherein:

[0028] 1 outrigger 2 movable support cylinder

[0029] 3 cover 4 locking device

[0030] 5 concrete 6 steel sand

[0031] 11 support plate 12 fixed support cylinder

[0032] 13 stabilizing plate 14 cross stiffening plate

[0033] 15 bottom plate 16 cylindrical protrusion

[0034] 21 sand cylinder 22 limiting cylinder

[0035] 23 walking plate 24 stiffening plate

[0036] 25 reinforcing plate 26 sand discharge pipe

[0037] 27 limiting groove

[0038] 41 fixed seat 42 long bolt

[0039] 43 nut Detailed implementation manners

[0040] Hereinafter, the present invention will be described in detail with reference to the drawings and embodiments:

[0041] As Figures 1-6 shown, an adjustable-height outrigger for bridge rotation includes a movable support cylinder 2 placed on the lower bearing platform. The movable support cylinder 2 is in a state where its vertical height position is adjustable. A support leg 1 is arranged in the movable support cylinder 2. The upper part of the support leg 1 is fixed to the upper bearing platform. A support structure for supporting the support leg 1 is arranged in the movable support cylinder 2. A locking device 4 is arranged at the outer walls of the support leg 1 and the movable support cylinder 2

[0042] A cylindrical protrusion 16 is provided at the lower part of the support leg 1, and a limiting groove 27 is formed at the upper end of the sand cylinder 21 of the movable support cylinder 2, and the cylindrical protrusion 16 is inserted into the limiting groove 27.

[0043] The support structure includes steel sand 6, the steel sand 6 is filled in the movable support cylinder 2, and the steel sand 6 supports the support leg 1.

[0044] The support structure includes a limiting cylinder 22. When the limiting cylinder 22 supports the support leg 1, it can lift the movable support cylinder 2 upward, so that a skateboard can be placed at the lower end of the movable support cylinder 2.

[0045] Concrete 5 is filled in the support leg 1.

[0046] The locking device 4 includes a fixed seat 41 provided on the outer walls of the support leg 1 and the movable support cylinder 2, and a bolt-nut assembly is passed through the fixed seat 41.

[0047] The fixed seat 41 includes a locking fixed plate perpendicular to the support leg 1 and the movable support cylinder 2. A through hole is formed in the locking fixed plate, and a long bolt 42 passes through the locking fixed plate and then a nut 43 is screwed on for fixation.

[0048] The support leg 1 includes a support plate 11, a fixed support cylinder 12 vertically passing through the support plate 11 is provided in the support plate 11, and a bottom plate 15 is provided at the bottom of the fixed support cylinder 12.

[0049] The movable support cylinder 2 includes a walking plate 23, and sand cylinders 21 corresponding to the fixed support cylinders 12 one by one are provided on the walking plate 23.

[0050] The support leg includes a support plate 11, a fixed support cylinder 12, a stabilizing plate 13, a cross stiffening plate 14, a bottom plate 15, and a cylindrical protrusion 16.

[0051] A bottom plate 15 is provided at the bottom of the fixed support cylinder 12. The fixed support cylinder 12 and the bottom plate 15 form a cavity with an open top and a closed bottom, and the above cavity is used to fill concrete 5.

[0052] Preferably, a cross stiffening plate 14 is provided inside the fixed support cylinder 12. The cross stiffening plate 14 reinforces the entire fixed support cylinder 12 and will not interfere with the filling of the concrete 5 at the same time. The cross stiffening plate 14 strengthens the surface stiffness of the bottom plate 15 and improves the bearing capacity of the support foot.

[0053] Preferably, the movable support cylinder 2 vertically passes through and is fixed in the support plate 11, and at least two movable support cylinders 2 fixed in a single support plate 11 are provided.

[0054] Furthermore, a stabilizing plate 13 is provided on the support plate 11, and both sides of the stabilizing plate 13 are connected to the outer wall of the fixed support cylinder 12.

[0055] The cylindrical protrusion 16 has a hollow structure, and the height by which the cylindrical protrusion 16 exceeds the fixed support cylinder 12 is the same as the depth of the limit groove 27.

[0056] A cylindrical protrusion 16 is welded to the bottom end of the bottom plate 15 in the circumferential direction, and the bottom plate 15 and the cylindrical protrusion 16 are coaxial.

[0057] The support plate 11 divides the fixed support cylinder 12 into upper and lower parts, and the part of the fixed support cylinder 12 above the support plate 11 is buried in the upper bearing platform.

[0058] The fixed support cylinder 12 penetrates through the support plate 11, the support plate 11 is welded to the fixed support cylinder 12, the cross stiffening plate 14 and the bottom plate 15 are both welded inside the fixed support cylinder, the bottom plate 15 is located below the cross stiffening plate, and the bottom plate 15 is welded to the bottom end face of the fixed support cylinder 12.

[0059] The movable support cylinder 2 includes a sand cylinder 21, a limit cylinder 22, a walking plate 23, a stiffening plate 24, a reinforcing plate 25, a sand discharge pipe 26, and a limit groove 27.

[0060] A limit groove 27 is provided in the inner circumferential direction at the top end of the sand cylinder 21. The limit groove 27 cooperates with the cylindrical protrusion 16.

[0061] A limit cylinder 22 is provided on the bottom plate of the sand cylinder 21, and the height of the limit cylinder 22 is lower than that of the steel sand 6. A distance is provided between the bottom plate 15 and the limit cylinder 22 for the adjustment space for later releasing the temporary support and converting it into a rotating body insurance support.

[0062] The limit cylinder 22 includes a central limit cylinder and an outer ring limit cylinder. The outer ring limit cylinders are arranged in a circular array around the central limit cylinder, and the central limit cylinder is coaxial with the sand cylinder 21. The limit cylinder 22 is a stainless steel cylinder with a smooth surface.

[0063] The sand cylinder 21 is fixed on the walking plate 23, and the position of the sand cylinder 21 corresponds to the upper and lower positions of the movable support cylinder 2.

[0064] A stiffening plate 24 perpendicular to both is provided between the outer wall of the sand cylinder 21 and the end of the walking plate 23, and the stiffening plate 24 ensures the firmness of the fixation of the sand cylinder 21.

[0065] Correspondingly, a reinforcing plate 25 is provided at the upper end of the walking plate 23. The reinforcing plate 25 is connected to the outer wall of the sand cylinder 21 to ensure the positions of the two sand cylinders 21, and the sand cylinders 21 are welded and fixed through the reinforcing plate 25.

[0066] A sand discharge pipe 26 is provided at the outer wall of the sand cylinder 21. The sand discharge pipe 26 facilitates the discharge of the steel sand 6 inside the sand cylinder 21, and a cover 3 is provided on the sand discharge pipe 26.

[0067] The locking device 4 includes a fixing seat 41, a long bolt 42 and a nut 43. The two ends of the fixing seat 41 are respectively fixed to the outer wall of the fixed support tube 12 and the sand tube 21. The long bolt 42 passes through the fixing seat 41, and the nut 43 is used to temporarily lock the support leg and the movable support tube.

[0068] The outer ring limiting cylinders maintain a certain distance from each other to facilitate the flow of the steel sand 6. The sand discharge pipe 26 is installed at the bottom of the sand barrel 21. The sand discharge pipe 26 cooperates with the sealing cover 3 to prevent the steel sand 6 from leaking out when the support leg is stressed.

[0069] When the fixed support cylinder 12 is inserted into the sand cylinder 21, the bottom plate 15 is located above the limiting cylinder 22, and the maximum gap between the limiting cylinder 22 and the bottom plate 15 is a. The amount of steel sand 6 taken out and the height of the support legs can be adjusted according to the actual needs of the rotation to ensure the role of insurance support during the rotation process. A limiting groove 27 is provided in the circumferential direction of the inner top of the sand cylinder 21, and the limiting groove 27 cooperates with the cylindrical protrusion 16.

[0070] A method for using a height-adjustable bridge swivel support leg comprises the following steps:

[0071] ⅰ. Insert the fixed support cylinder 12 of the leg 1 into the sand cylinder 21 filled with steel sand 6 in the movable support cylinder 2, and after compaction, fix it with the locking device 4 to maintain the spacing between the bottom plate 15 and the limiting cylinder 22 of the movable support cylinder 2;

[0072] ⅱ. When the bridge is rotated, the cover 3 is removed, the steel sand 6 flows out from the sand tube 21, the bottom plate 15 contacts the limit cylinder 22 in the movable support leg, the nut 43 is rotated, the movable support tube 2 is lifted, and the bottom surface of the walking plate 23 is kept at a distance from the slideway, the slide plate is inserted, the bridge is rotated, and the rotation safety support function is started.

[0073] The working principle of the present invention is as follows:

[0074] The fixed support tube 12 of the support leg 1 is inserted into the sand tube 21 of the movable support tube 2, and filled with steel sand 6. After compaction, it is fixed with the locking device 4 to maintain a certain distance between the bottom plate 15 and the limiting cylinder 22 of the movable support tube 2, which is used for the adjustment space for releasing the temporary support and converting it into a swivel safety support in the later stage. Moreover, by evenly fixing the limiting cylinder 22 on the upper surface of the bottom end of the sand tube 21, the problem that the steel sand 6 is unevenly distributed inside the sand tube 21 due to the use of partitions in the existing means can be solved. In addition, by providing the cylindrical protrusion 16 and the limiting groove 27, on the one hand, the structure is easy to install, and on the other hand, it can play a limiting role to prevent the fixed support tube 12 and the movable support tube 2 from offsetting after the locking device 4 is locked.

[0075] In the present invention, steel sand is arranged between the outrigger and the movable support cylinder and locked and fixed by a locking device, which can be used as a temporary support during the construction of the rotating bridge to offset the potential safety hazards caused by the unbalanced moment of the bridge. During the bridge rotation construction, the steel sand is taken out, the bottom plate contacts the limit cylinder in the movable support leg, the nut of the locking device is rotated, the movable support leg is lifted to keep a certain distance between the bottom surface of its walking plate and the slideway, and a slide plate is inserted to implement the bridge rotation, playing a role in safe rotation support.

[0076] During the use of the present invention, by arranging cylindrical protrusions and limit grooves, on the one hand, the structure is convenient for installation, and on the other hand, it can play a limiting role to prevent the fixed support cylinder and the movable support cylinder from shifting after the locking device is locked, and it is also convenient for adjustment. In addition, by uniformly fixing the limit cylinders on the upper surface of the bottom end of the sand cylinder, the situation that the steel sand is unevenly distributed in the sand cylinder caused by using partition plates in the existing means can be solved.

[0077] The present invention combines the functions of the support feet and sand boxes for rotating bridges, can be used as both a temporary support and a safety support leg during the rotation process, saves the overall steel consumption, and has good economy.

Claims

1. An adjustable-height support leg for bridge rotation, comprising a movable support cylinder (2) placed on a lower bearing platform, characterized in that: The movable support cylinder (2) is adjustable in the vertical height position. A support leg (1) is arranged in the movable support cylinder (2). The upper part of the support leg (1) is fixed to the upper bearing platform. A support structure for supporting the support leg (1) is arranged in the movable support cylinder (2). A locking device (4) is arranged at the outer walls of the support leg (1) and the movable support cylinder (2); A cylindrical protrusion (16) is arranged at the lower part of the support leg (1). A limit groove (27) is formed at the upper end of the sand cylinder (21) of the movable support cylinder (2). The cylindrical protrusion (16) is inserted into the limit groove (27); The support structure includes steel sand (6). The steel sand (6) is filled in the movable support cylinder (2). The steel sand (6) supports the support leg (1); The support structure includes a limit cylinder (22). When the limit cylinder (22) supports the support leg (1), the movable support cylinder (2) can be lifted upward so that a slide plate can be placed at the lower end of the movable support cylinder (2); The locking device (4) includes a fixed seat (41) arranged at the outer walls of the support leg (1) and the movable support cylinder (2). A bolt-nut assembly is passed through the fixed seat (41); The fixed seat (41) includes a locking fixed plate perpendicular to the support leg (1) and the movable support cylinder (2). A through hole is formed in the locking fixed plate. After a long bolt (42) passes through the locking fixed plate, a nut (43) is screwed on for fixation; A limit cylinder (22) is arranged on the bottom plate of the sand cylinder (21). The height of the limit cylinder (22) is lower than that of the steel sand (6). A spacing is provided between the bottom plate (15) and the limit cylinder (22) for the adjustment space for later releasing the temporary support and converting it into a swing insurance support; A sand discharging pipe (26) is arranged at the outer wall of the sand cylinder (21). The sand discharging pipe (26) facilitates discharging the steel sand (6) inside the sand cylinder (21). A cover (3) is arranged on the sand discharging pipe (26).

2. The adjustable-height supporting foot for bridge rotation according to claim 1, wherein: Concrete (5) is filled in the support leg (1).

3. The adjustable-height support leg for bridge rotation according to claim 1, characterized in that: The support leg (1) includes a support plate (11). A fixed support cylinder (12) passing vertically through is arranged in the support plate (11). A bottom plate (15) is arranged at the bottom of the fixed support cylinder (12).

4. The adjustable-height supporting leg for bridge rotation according to claim 3, characterized in that: The movable support cylinder (2) includes a walking plate (23). Sand cylinders (21) corresponding to the fixed support cylinders (12) one by one are arranged on the walking plate (23).

5. The usage method of a support leg for bridge rotation with adjustable height according to claim 4, characterized in that: It includes the following steps: (ⅰ) Insert the fixed support cylinder (12) of the support leg (1) into the sand cylinder (21) filled with steel sand (6) inside the movable support cylinder (2). After compaction, fix it with the locking device (4), and keep the spacing between the bottom plate (15) and the limit cylinder (22) of the movable support cylinder (2); (ⅱ) When the bridge is swung for construction, remove the cover (3). The steel sand (6) flows out of the sand cylinder (21). The bottom plate (15) contacts the limit cylinder (22) inside the movable support leg. Rotate the nut (43) to lift the movable support cylinder (2) so that the bottom surface of its walking plate (23) keeps a distance from the slideway, insert the slide plate, and implement the bridge swing, playing a role of a rotating safety support.

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