Auxiliary device for bridge plate prestressed steel strand tensioning construction

Abstract

The utility model relates to the technical field of steel strand prestress tensioning, in particular to an auxiliary device for bridge plate prestress steel strand tensioning construction, which comprises a transportation platform, a mounting seat capable of circumferentially rotating is mounted on one side of the top surface of the transportation platform, and a first guide rail vertically arranged is mounted on one side of the top surface of the mounting seat. The lifting device has the advantages that the first guide rail, the guide seat, the winch and the steel wire rope are arranged, the jack placing seat is mounted at the top of the guide seat, the bottom end of the first guide rail and the winch are mounted on the top surface of the mounting seat, and the steel wire rope bypasses the three guide wheels and is connected with one side of the top surface of the guide seat; and the guide seat is driven to move in the length direction of the first guide rail, so that the jack placing seat can lift the tensioning jack to lift at a certain height, the steel strand at the high position can be conveniently tensioned, the overall structure is simple, and the operation convenience and safety are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed steel strand tensioning, in particular to an auxiliary device for tensioning construction of prestressed steel strands of bridge plates. Background Art

[0002] Prestressing is to add tension to the components in advance, so that the prestressed components are subjected to compressive stress, which in turn causes them to undergo certain deformations to cope with the loads on the structure itself. Generally, steel strands, jacks, anchor plates, and clips are used for prestressing. Before the engineering structure components are subjected to external loads, prestressing is applied to the steel strands in the tension module to improve the bending resistance and rigidity of the components, delay the appearance of cracks, and increase the durability of the components. During the prestressing process, tensioning jacks are required to complete the work. Existing tensioning jacks are heavy and require multiple workers to carry them together, which is time-consuming and labor-intensive. If they slip, workers are prone to injury.

[0003] An auxiliary device for tensioning construction of prestressed steel strands of bridge slabs disclosed in Chinese patent CN213205001U is convenient to move through universal wheels, saving time and effort. The position of the device is fixed by the brake on the universal wheel to increase stability during work. The arc-shaped fixed plate is moved to the front and rear sides of the tensioning jack by rotating the T-shaped rotating block, and then the bolt is rotated to clamp the position of the tensioning jack. It can fix tensioning jacks of different specifications, which is convenient, fast and adaptable. The utility model solves the above problems by proposing another technical solution. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an auxiliary device for tensioning construction of prestressed steel strands of bridge slabs, which effectively solves the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one side provides an auxiliary device for the tensioning construction of prestressed steel strands of bridge slabs, including a transport platform, a mounting seat that can rotate in a circle is installed on one side of the top surface of the transport platform, a vertically placed first guide rail is installed on one side of the top surface of the mounting seat, the top end and the bottom end of one side of the first guide rail are rotatably connected to guide wheels, a guide seat that moves along its length direction is provided in the middle of the first guide rail, a second guide rail is fixedly connected to the top surface of the guide seat, a jack placement seat is slidably connected to the inside of the second guide rail, a winch is provided in the middle of the top surface of the mounting seat, and a wire rope is provided on the outside, the wire rope is wound around the outer walls of the three guide wheels and fixedly connected to one side of the top surface of the guide seat.

[0006] Preferably, any of the above schemes is that a driving motor is installed in the middle of the top surface of the transport platform, and its output end is fixedly connected to the middle of the bottom surface of the mounting seat. This scheme facilitates the driving motor to be powered on and run to drive the mounting seat to perform circular motion, thereby changing the direction of the guide seat, thereby improving ease of use and facilitating operation by users.

[0007] Preferably, any of the above schemes is that a circular guide rail is installed in the middle of the top surface of the transport platform, and a plurality of universal balls are installed at the edge of the bottom surface of the mounting seat, which are rollingly connected to the circular guide rail. This scheme facilitates the rolling connection with the circular guide rail through a plurality of universal balls, thereby facilitating the support of the edge position of the mounting seat, ensuring the smooth operation of the mounting seat, and at the same time enabling the plurality of universal balls and the circular guide rail to bear the weight of the mounting seat and the plurality of parts on the top of the mounting seat.

[0008] Preferably, any of the above schemes has a counterweight fixedly connected to the side of the mounting seat away from the top surface of the first guide rail, and a gap is left between its side surface and the winch. By using this scheme, it is convenient to balance the weight of parts such as the first guide rail, guide seat, and jack placement seat, avoid position deflection during the rotation of the mounting seat, and ensure the safety of the overall operation.

[0009] Preferably, any of the above schemes is that a stop block is fixedly connected to the side of the guide seat away from the top surface of the first guide rail, and one side of the stop block is in contact with the end surface of the second guide rail. By using this scheme, it is convenient to limit the sliding of the jack placement seat, so that the jack placement seat can slide along the second guide rail, so that the tensioning jack can be as close as possible to the tensioning position of the steel strand, which is convenient for the user to put the tensioning jack on the steel strand and perform tensioning construction on the steel strand.

[0010] Preferably, any of the above schemes is that three arc-shaped placement blocks are installed on the top surface of the jack placement seat, and the bottom ends of the three arc-shaped placement blocks in this scheme are fixedly connected to the top surface of the jack placement seat by bolts, and are linearly arranged on the top surface of the jack placement seat, thereby providing a placement position for the tensioning jack and facilitating the user to take out the tensioning jack.

[0011] The utility model has the following advantages:

[0012] 1. The auxiliary device for tensioning construction of prestressed steel strands of the bridge slab is provided with a first guide rail, a guide seat, a winch and a steel wire rope. The jack placement seat is installed on the top of the guide seat, and the bottom end of the first guide rail and the winch are installed on the top surface of the installation seat. The steel wire rope passes through three guide wheels and is connected to one side of the top surface of the guide seat. Then, the winch is powered on to drive the guide seat to move along the length direction of the first guide rail, so that the tensioning jack is lifted to a certain height by the jack placement seat, so as to facilitate the tensioning construction of the steel strands at a high place. The overall structure is simple, which effectively improves the convenience and safety of operation.

[0013] 2. The auxiliary device for tensioning construction of prestressed steel strands of the bridge slab is provided with a transport platform, a driving motor, a mounting seat, a circular guide rail and a plurality of universal balls. At the same time, the plurality of universal balls are rollingly connected with the circular guide rail, and then powered on by the driving motor, so that the mounting seat can be driven to rotate in a circle, the relative direction of the tensioning jack can be adjusted, and the user can operate it conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cutaway structure of the utility model as a whole;

[0016] Figure 3 This is a schematic diagram of the transport platform structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the first guide rail structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the mounting seat structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the guide seat structure of the utility model.

[0020] In the figure: 1-transport platform, 2-circular guide rail, 3-mounting seat, 4-first guide rail, 5-guide seat, 6-second guide rail, 7-jack placement seat, 8-guide wheel, 9-wire rope, 10-winch, 11-counterweight block, 12-universal ball, 13-drive motor, 14-arc placement block, 15-stop block. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] like Figures 1 to 6As shown, an auxiliary device for tensioning construction of prestressed steel strands of bridge slabs comprises a transport platform 1, a mounting seat 3 which can rotate in a circle is installed on one side of the top surface of the transport platform 1, a vertically placed first guide rail 4 is installed on one side of the top surface of the mounting seat 3, the top end and the bottom end of one side of the first guide rail 4 are both rotatably connected with guide wheels 8, a guide seat 5 which moves along its length direction is arranged in the middle part of the first guide rail 4, a second guide rail 6 is fixedly connected to the top surface of the guide seat 5, a jack placement seat 7 is slidably connected inside the second guide rail 6, a winch 10 is arranged in the middle part of the top surface of the mounting seat 3, and a steel wire rope 9 is arranged on the outside, the steel wire rope 9 is wound around the outer walls of the three guide wheels 8 and is fixedly connected to one side of the top surface of the guide seat 5.

[0023] A driving motor 13 is installed in the middle of the top surface of the transport platform 1, and its output end is fixedly connected to the middle of the bottom surface of the mounting seat 3. As an optional technical solution of the present invention, it is convenient to energize the driving motor 13 to drive the mounting seat 3 to perform circular motion, thereby changing the direction of the guide seat 5, thereby improving the convenience of use and facilitating the user to operate it.

[0024] A circular guide rail 2 is installed in the middle of the top surface of the transport platform 1, and a plurality of universal balls 12 are installed at the edge of the bottom surface of the mounting seat 3, which are rollingly connected to the circular guide rail 2. As an optional technical solution of the utility model, this facilitates the rolling connection with the circular guide rail 2 through the plurality of universal balls 12, thereby facilitating the support of the edge position of the mounting seat 3, ensuring the smooth operation of the mounting seat 3, and at the same time enabling the plurality of universal balls 12 and the circular guide rail 2 to bear the weight of the mounting seat 3 and the plurality of parts on its top.

[0025] A counterweight 11 is fixedly connected to one side of the mounting seat 3 away from the top surface of the first guide rail 4, and a gap is left between its side surface and the winch 10. As an optional technical solution of the present invention, this facilitates balancing the weight of parts such as the first guide rail 4, the guide seat 5, and the jack placement seat 7, thereby avoiding position deflection during the rotation of the mounting seat 3 and ensuring the safety of the overall operation.

[0026] A stopper 15 is fixedly connected to one side of the guide seat 5 away from the top surface of the first guide rail 4, and one side of the stopper 15 is in contact with the end surface of the second guide rail 6. As an optional technical solution of the present invention, this facilitates limiting the sliding of the jack placement seat 7, so that the jack placement seat 7 can slide along the second guide rail 6, so that the tensioning jack can be as close as possible to the tensioning position of the steel strand, which is convenient for the user to put the tensioning jack on the steel strand and perform tensioning construction on the steel strand.

[0027] Three arc-shaped placement blocks 14 are installed on the top surface of the jack placement seat 7. As an optional technical solution of the utility model, the bottom ends of the three arc-shaped placement blocks 14 are fixedly connected to the top surface of the jack placement seat 7 by bolts, and at the same time, they are linearly arranged on the top surface of the jack placement seat 7, thereby providing a placement position for the tensioning jack and facilitating the user to take out the tensioning jack.

[0028] The auxiliary device for tensioning construction of prestressed steel strands of bridge slabs requires the following steps when used:

[0029] 1) When in use, place the tensioning jack on the jack placement seat 7;

[0030] 2) Push the transport platform 1 to move to the specified position, and at the same time, the drive motor 13 is powered on to change the direction of the guide seat 5;

[0031] 3) The winch 10 is powered on and runs, driving the guide seat 5 to move along the length direction of the first guide rail 4, lifting the tensioning jack to a certain height.

[0032] To sum up, when the user uses it, by setting the first guide rail 4, guide seat 5, winch 10 and wire rope 9, the jack placement seat 7 is installed on the top of the guide seat 5, the bottom end of the first guide rail 4 and the winch 10 are installed on the top surface of the mounting seat 3, the wire rope passes through the three guide wheels 8 and is connected to one side of the top surface of the guide seat 5, and then the winch 10 is powered on to drive the guide seat 5 to move along the length direction of the first guide rail 4, so that it is convenient to lift the tensioning jack to a certain height through the jack placement seat 7, so as to facilitate the tensioning construction of the high-altitude steel strand. The overall structure is simple, which effectively improves the convenience and safety of operation, and then by setting the transportation platform 1, the driving motor 13, the mounting seat 3, the circular guide rail 2 and multiple universal balls 12, at the same time, the multiple universal balls 12 are all rollingly connected to the circular guide rail 2, and then the driving motor 13 is powered on to drive the mounting seat 3 to rotate in a circle, so as to adjust the relative direction of the tensioning jack, and to facilitate the user to operate and use.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for tensioning construction of prestressed steel strands in bridge slabs, Features: The invention comprises a transport platform (1), wherein a mounting seat (3) capable of circular rotation is installed on one side of the top surface of the transport platform (1), a first guide rail (4) placed vertically is installed on one side of the top surface of the mounting seat (3), the top end and the bottom end of one side of the first guide rail (4) are both rotatably connected to guide wheels (8), a guide seat (5) capable of moving along its length direction is arranged in the middle of the first guide rail (4), a second guide rail (6) is fixedly connected to the top surface of the guide seat (5), a jack placement seat (7) is slidably connected inside the second guide rail (6), a winch (10) is arranged in the middle of the top surface of the mounting seat (3), and a steel wire rope (9) is arranged outside the winch, the steel wire rope (9) is wound around the outer walls of the three guide wheels (8) and is fixedly connected to one side of the top surface of the guide seat (5).

2. An auxiliary device for tensioning construction of prestressed steel strands of bridge slabs according to claim 1, Features: A driving motor (13) is installed in the middle of the top surface of the transport platform (1), and its output end is fixedly connected to the middle of the bottom surface of the mounting seat (3).

3. An auxiliary device for tensioning construction of prestressed steel strands of bridge slabs according to claim 2, Features: A circular guide rail (2) is installed in the middle of the top surface of the transport platform (1), and a plurality of universal balls (12) are installed at the edge of the bottom surface of the mounting seat (3), which are rollingly connected to the circular guide rail (2).

4. The auxiliary device for tensioning the prestressed steel strands of a bridge slab according to claim 3, Features: A counterweight (11) is fixedly connected to one side of the mounting seat (3) away from the top surface of the first guide rail (4), and a gap is left between the side surface thereof and the winch (10).

5. The auxiliary device for tensioning construction of prestressed steel strands of bridge slabs according to claim 4, Features: A stopper (15) is fixedly connected to the side of the guide seat (5) away from the top surface of the first guide rail (4), and one side of the stopper (15) is in contact with the end surface of the second guide rail (6).

6. An auxiliary device for tensioning construction of prestressed steel strands of bridge slabs according to claim 5, Features: Three arc-shaped placement blocks (14) are installed on the top surface of the jack placement seat (7).

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