Bridge underwater bearing platform steel jacket box pulling and pressing rod suspension device

Abstract

The utility model discloses a bridge underwater bearing platform steel jacket pulling and pressing rod suspension device which comprises a base, a rotating disc capable of rotating is arranged at the upper end of the base, a supporting column is fixed to the upper end of the rotating disc, a lifting frame capable of lifting is arranged on the supporting column, a sliding rod capable of horizontally sliding is arranged on the lifting frame, and a connecting assembly is fixed to the lower end of the sliding rod. A steel jacket box is arranged at the lower end of the connecting assembly; the connecting assembly comprises a connecting frame fixed to the lower end of the sliding rod, a through T-shaped sliding groove is formed in the middle of the lower end of the connecting frame, a pulling and pressing rod is fixed to the upper end of the steel jacket box, a matching block is arranged at the upper end of the pulling and pressing rod, and the matching block can be matched with the T-shaped sliding groove, so that the pulling force and pressure of the sliding rod can be transmitted to the steel jacket box. According to the steel jacket box, when the steel jacket box is installed, pressure can be applied to the steel jacket box and the steel jacket box is lowered to a specified depth, and when the steel jacket box is detached, tension can be applied to the steel jacket box and the steel jacket box is separated from the bearing platform.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a tension and compression rod suspension device for a steel casing box of a bridge underwater bearing platform. Background Art

[0002] When building a bridge, it is sometimes necessary to cross a river, which requires the construction of an underwater pedestal. During the construction of the underwater pedestal, it is usually necessary to hoist the steel casing below, then drain the water in the steel casing to create a construction environment, then tie the pedestal steel bars, and then pour concrete to complete the underwater pedestal construction;

[0003] However, during the installation process below the steel casing, it is not only necessary to hoist the steel casing, but also to apply downward pressure to it to ensure that the steel casing can be lowered to a specified depth. In addition, after casting, it is also necessary to apply pulling force to it to separate the steel casing from the pedestal. For this purpose, a tension and compression rod suspension device for the steel casing of the underwater pedestal of the bridge is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a suspension device for a steel casing box tension and compression rods of a bridge underwater pedestal, thereby solving the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The steel casing tension and compression rod suspension device of the underwater bridge foundation comprises a base, wherein a rotating turntable is arranged at the upper end of the base, a supporting column is fixed at the upper end of the turntable, a lifting frame capable of lifting and lowering is arranged on the supporting column, a sliding rod capable of horizontal sliding is arranged on the lifting frame, a connecting assembly is fixed at the lower end of the sliding rod, and a steel casing is arranged at the lower end of the connecting assembly;

[0007] The connecting assembly includes a connecting frame fixed to the lower end of the sliding rod, a penetrating T-shaped slide groove is arranged in the middle of the lower end of the connecting frame, a tension and compression rod is fixed to the upper end of the steel casing, and a matching block is arranged at the upper end of the tension and compression rod, which can cooperate with the T-shaped slide groove.

[0008] Furthermore, two V-shaped clamping blocks capable of synchronously sliding in opposite directions are arranged on the connecting frame, and can clamp and fix the steel casing.

[0009] Furthermore, the two V-shaped clamps are both slidably connected to the connecting frame, and two fourth fixed plates are provided on the connecting frame. A rotatable second screw rod is provided between the two fourth fixed plates, and both ends of the second screw rod are respectively provided with a first external thread and a second external thread with opposite rotation directions and equal pitches, and the first external thread and the second external thread respectively pass through the upper end parts of the two V-shaped clamps and are threadedly connected thereto.

[0010] Furthermore, the thread lead angles of the first external thread and the second external thread are both smaller than the equivalent friction angle.

[0011] Furthermore, the tension and compression rods are fixed to the steel casing by bolt connection.

[0012] Furthermore, the lifting frame is slidably connected to the support column in the vertical direction, a first fixed plate is provided on one side of the lifting frame, two second fixed plates distributed up and down are provided on one side of the support column, a first rotatable screw rod is provided between the two second fixed plates, the first 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 first screw is smaller than the equivalent friction angle.

[0014] Furthermore, the sliding rod is slidably connected to the lifting frame in the horizontal direction, a third fixing plate is arranged on the sliding rod, a cylinder is fixed on the lifting frame, and a driving shaft end of the cylinder is fixed to the third fixing plate.

[0015] Furthermore, a motor is provided at the lower end of the base to drive the turntable to rotate.

[0016] Beneficial effects of the utility model:

[0017] 1. A support column is arranged on the turntable, a lifting rod that can be raised and lowered is arranged on the support column, a sliding rod that can slide horizontally is arranged on the lifting rod, and a connecting component is arranged at the lower end of the sliding rod to cooperate with the tension and compression rod at the upper end of the steel casing, so that the tension and pressure of the sliding rod can be transmitted to the steel casing, so that when the steel casing is installed, pressure can be applied to the steel casing and it can be lowered to a specified depth. When the steel casing is disassembled, tension can be applied to the steel casing and it can leave the base.

[0018] 2. By setting two V-shaped clamps that can slide synchronously in opposite directions on the connecting frame, the steel casing is clamped and fixed to prevent the tension and compression rods from slipping out of the T-shaped slide groove during the suspension process, thereby causing the lifting to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is a schematic diagram of the structure of the suspension device of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the connection assembly of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the connecting frame of the utility model;

[0023] Figure 4 It is a schematic diagram of the tension and compression rod structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the second screw rod structure of the utility model. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1 As shown, the tension and compression rod suspension device of the steel casing box of the underwater foundation of the bridge includes a base 1, a rotatable turntable 2 is arranged on the upper end of the base 1, a support column 3 is fixed on the upper end of the turntable 2, a lifting frame 5 that can be raised and lowered is arranged on the upper end of the support column 3, the lifting frame 5 is L-shaped, a sliding rod 6 that can slide horizontally is arranged on one side of the lifting frame 5, a connecting component 7 is arranged on one end of the sliding rod 6, the connecting component 7 is used to apply tension and pressure to the steel casing 9, and cooperate with the rotation of the turntable 2, the lifting and lowering of the lifting frame 5, and the horizontal sliding of the sliding rod 6 to realize the lowering of the steel casing 9 to the specified position, and facilitate the removal of the steel casing 9 after the foundation casting is completed.

[0027] In this embodiment, a motor is disposed at the lower end of the base 1 to directly drive the turntable 2 to rotate, thereby enabling the steering adjustment of the suspension device.

[0028] In this embodiment, the lifting frame 5 is slidably connected to the support column 3 in the vertical direction. A first fixing plate 51 is provided on one side of the lifting frame 5, and two second fixing plates 31 distributed up and down are provided on one side of the support column 3. A first screw rod 4 is rotatably connected between the two second fixing plates 31. The first screw rod 4 penetrates the first fixing plate 51 along the vertical direction and is threadedly connected to the first fixing plate 51. A motor is provided on one of the second fixing plates 31 to drive the first screw rod 4 to rotate, so that the lifting frame 5 can be driven to move up and down; and the first screw rod 4 needs to have self-locking property, that is, the thread lead angle of the first screw rod 4 is less than the equivalent friction angle, so as to ensure the stability of the lifting frame 5 after the position is adjusted in the vertical direction;

[0029] Of course, the method of driving the lifting frame 5 to move up and down includes but is not limited to the first screw rod 4 and other structures in this embodiment. In some embodiments, the lifting frame 5 can also be directly driven to move up and down by setting linear driving components such as cylinders and hydraulic cylinders on the support column 3.

[0030] In addition, in this embodiment, the sliding rod 6 is connected to the lifting frame 5 in a sliding manner in the horizontal direction, a third fixing plate 61 is provided on the sliding rod 6, a cylinder is fixed on the lifting frame 5, and the end of the driving shaft of the cylinder is fixed to the third fixing plate 61. Under the drive of the cylinder, the sliding rod 6 can be driven to slide horizontally;

[0031] Of course, the method of driving the sliding rod 6 to slide horizontally includes but is not limited to the cylinder in this embodiment. In some embodiments, the cylinder can be replaced by providing a hydraulic cylinder, a telescopic rod or other linear driving components to drive the sliding rod 6 to slide horizontally.

[0032] like Figures 2 to 4 As shown, the connecting assembly 7 includes a connecting frame 71 fixed to the lower end of the sliding rod 6, a T-shaped slot 711 is provided in the middle of the lower end of the connecting frame 71, and the T-shaped slot 711 runs through the connecting frame 71, and a tension rod 8 is fixed to the upper end of the steel casing 9, and a matching block 81 is provided at the upper end of the tension rod 8, and the matching block 81 can cooperate with the T-shaped slot 711, so that the tension and pressure of the sliding rod 6 can be transmitted to the steel casing 9, so that: during installation, pressure can be applied to the steel casing 9 and it can be lowered to a specified depth, and during disassembly, tension can be applied to the steel casing 9 and it can leave the foundation; and the T-shaped slot 711 is a through-type, which can facilitate the separation of the connecting frame 71 and the tension rod 8, thereby facilitating the separation of the suspension device and the steel casing 9, so as to facilitate the pouring construction;

[0033] In order to prevent the tension and compression rod 8 from slipping out of the T-shaped slide groove 711 during the suspension process, in this embodiment, two V-shaped clamping blocks 72 that can slide synchronously in opposite directions are provided on the connecting frame 71 to clamp and fix the steel casing 9, so that the steel casing 9 can be fixed to the connecting frame 71 to prevent the matching block 81 from leaving the T-shaped slide groove 711 during the lifting process, and thus failing to transmit tension and pressure;

[0034] In addition, in this embodiment, the two V-shaped clamping blocks 72 are slidably connected to the connecting frame 71, and two fourth fixing plates 712 are provided on the connecting frame 71. The second screw rod 73 is rotatably connected between the two fourth fixing plates 712. Figure 5As shown, the two ends of the second screw rod 73 are respectively provided with a first external thread 731 and a second external thread 732 of opposite rotation directions and equal pitches, the first external thread 731 and the second external thread 732 respectively penetrate the upper ends of the two V-shaped clamping blocks 72 and are threadedly connected thereto, and a motor is provided on one of the fourth fixing plates 712 to drive the second screw rod 73 to rotate, so that the two V-shaped clamping blocks 7 can synchronously slide in opposite directions, so as to facilitate the centering and clamping of the steel casing 9;

[0035] Furthermore, in order to ensure the stability of clamping the steel casing 9, the second screw rod 73 needs to have self-locking properties, that is, the thread lead angles of the first external thread 731 and the second external thread 732 are both smaller than the equivalent friction angle.

[0036] Of course, the method of driving the two V-shaped clamps 72 to slide synchronously in the opposite directions includes but is not limited to the second screw rod 73 in the present embodiment. In some embodiments, two cylinders can be arranged on the connecting frame 71 to drive the two V-shaped clamps 72 to slide respectively. By controlling the operating timing of the two cylinders, the two V-shaped clamps 7 can also slide synchronously in the opposite directions, so as to facilitate the centering, clamping and fixing of the steel casing 9.

[0037] It is worth mentioning that in the present embodiment, the tension and compression rods 8 and the steel casing 9 are fixed by bolt connection, which is convenient for disassembling the tension and compression rods 8 during pouring construction, thereby facilitating construction; of course, in some embodiments, the tension and compression rods 8 and the steel casing 9 can also be fixed by welding, but, obviously, it is not easy to disassemble after welding, which will cause certain interference to the subsequent pouring construction or steel bar bundling.

[0038] Working principle:

[0039] By arranging a support column 3 on the turntable 2, arranging a lifting rod 5 that can be raised and lowered on the support column 3, arranging a sliding rod 6 that can slide horizontally on the lifting rod 5, and arranging a connecting assembly 7 at the lower end of the sliding rod 6 to cooperate with the tension and compression rod 8 at the upper end of the steel casing 9, the tension and pressure of the sliding rod 6 can be transmitted to the steel casing 9, so that when the steel casing 9 is installed, pressure can be applied to the steel casing 9 and it can be lowered to a specified depth, and when the steel casing 9 is disassembled, tension can be applied to the steel casing 9 and it can leave the foundation. By arranging two V-shaped clamping blocks 72 that can slide synchronously in the opposite direction on the connecting frame 71, the steel casing 9 is clamped and fixed to prevent the tension and compression rod 8 from sliding out of the T-shaped slide groove 711 during the suspension process, thereby causing the lifting to fall off.

[0040] 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.

[0041] 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 suspension device for a steel casing of a bridge underwater foundation, comprising a base (1), characterized in that: A rotatable turntable (2) is arranged at the upper end of the base (1), a support column (3) is fixed at the upper end of the turntable (2), a lifting frame (5) capable of lifting and lowering is arranged on the support column (3), a sliding rod (6) capable of horizontal sliding is arranged on the lifting frame (5), a connecting assembly (7) is fixed at the lower end of the sliding rod (6), and a steel casing (9) is arranged at the lower end of the connecting assembly (7); The connecting assembly (7) comprises a connecting frame (71) fixed at the lower end of the sliding rod (6), a T-shaped sliding groove (711) is provided in the middle of the lower end of the connecting frame (71), a tension rod (8) is fixed at the upper end of the steel casing (9), a matching block (81) is provided at the upper end of the tension rod (8), and the matching block (81) can cooperate with the T-shaped sliding groove (711).

2. The suspension device for the steel casing of the bridge underwater platform according to claim 1 is characterized in that: The connecting frame (71) is provided with two V-shaped clamping blocks (72) capable of synchronously sliding in opposite directions and capable of clamping and fixing the steel casing (9).

3. The suspension device for the steel casing of the bridge underwater platform according to claim 2 is characterized in that: The two V-shaped clamping blocks (72) are both slidably connected to the connecting frame (71); two fourth fixing plates (712) are arranged on the connecting frame (71); a second screw rod (73) capable of rotating is arranged between the two fourth fixing plates (712); two ends of the second screw rod (73) are respectively provided with a first external thread (731) and a second external thread (732) with opposite rotation directions and equal pitches; the first external thread (731) and the second external thread (732) respectively penetrate the upper end portions of the two V-shaped clamping blocks (72) and are threadedly connected thereto.

4. The suspension device for the steel casing of the bridge underwater platform according to claim 3 is characterized in that: The thread lead angles of the first external thread (731) and the second external thread (732) are both smaller than the equivalent friction angle.

5. The suspension device for the steel casing of the bridge underwater cap according to claim 1 is characterized in that: The tension and compression rod (8) is fixed to the steel casing by bolt connection.

6. The suspension device for the steel casing of the bridge underwater platform according to claim 1 is characterized in that: The lifting frame (5) is slidably connected to the support column (3) in the vertical direction; a first fixing plate (51) is provided on one side of the lifting frame (5); two second fixing plates (31) distributed up and down are provided on one side of the support column (3); a rotatable first screw rod (4) is provided between the two second fixing plates (31); the first screw rod (4) passes through the first fixing plate (51) in the vertical direction and is threadedly connected to the first fixing plate (51).

7. The suspension device for the steel casing of the bridge underwater cap according to claim 6 is characterized in that: The thread lead angle of the first screw rod (4) is smaller than the equivalent friction angle.

8. The suspension device for the steel casing of the bridge underwater platform according to claim 1 is characterized in that: The sliding rod (6) is slidably connected to the lifting frame (5) in the horizontal direction; a third fixing plate (61) is provided on the sliding rod (6); a cylinder is fixed on the lifting frame (5); and a drive shaft end of the cylinder is fixed to the third fixing plate (61).

9. The suspension device for the steel casing of the bridge underwater platform according to claim 1 is characterized in that: A motor is provided at the lower end of the base (1) to drive the turntable (2) to rotate.

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