CN220928835U - Hyperbolic roof steel structure supporting jig - Google Patents

Abstract

The utility model discloses a hyperbolic roof steel structure supporting jig which comprises a base and a supporting jig body fixed at the upper end of the base, wherein a storage groove is formed in the base, a lifting plate is connected to the inner wall of the storage groove in a sliding mode, a travelling mechanism is arranged at the lower end of the lifting plate, a reset mechanism is arranged at the upper end of the lifting plate, a groove is formed in the upper end of the lifting plate and close to the central position of the lifting plate, an eccentric wheel is arranged in the groove, part of the eccentric wheel upwards penetrates through the groove, a rotating rod is fixedly inserted into the eccentric wheel, two ends of the rotating rod penetrate through the eccentric wheel and are respectively connected with a first connecting block and a second connecting block in a rotating mode, and the upper ends of the first connecting block and the second connecting block are fixedly connected with the inner top of the storage groove. According to the utility model, through the arrangement of the mechanisms such as the support, the lifting plate, the first connecting block and the like, the whole movement is convenient, the whole stability is not affected during use, and the convenience and the practicability are improved.

Description

A hyperbolic roof steel structure support frame

Technical Field

The utility model relates to the technical field of supporting tyre frames, in particular to a supporting tyre frame for a hyperbolic roof steel structure.

Background technique

The steel structure bridge truss is installed by the in-situ high-altitude bulk method, that is, a temporary support system is set up under the steel structure truss, and a tower crane is used to lift the steel beams, steel columns, and diagonal braces layer by layer from bottom to top. The temporary support system is mainly composed of bottom distribution beams, support cradles, and conversion brackets. The steel structure support cradle is widely used in China for large-span bridge installation, large sports stadiums, exhibition halls, hangars and building construction projects.

At present, due to the large size of the hyperbolic roof steel structure support frame, universal wheels are generally set at its bottom to facilitate displacement. However, due to the low friction between the universal wheels and the ground, the stability is poor when it does not need to be moved, and position displacement is prone to occur, and the safety needs to be improved.

Utility Model Content

The purpose of the utility model is to solve the problem that due to the large size of the hyperbolic roof steel structure support frame, universal wheels are generally set at the bottom thereof to facilitate displacement, but due to the low friction between the universal wheels and the ground, the stability is poor when it does not need to be moved, and position displacement is likely to occur, and the safety needs to be improved. A hyperbolic roof steel structure support frame is proposed.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A hyperbolic roof steel structure support tire frame, comprising a base and a support tire frame body fixed at the upper end thereof, the base being provided with a storage groove, a lifting plate being slidably connected to the inner wall of the storage groove, a walking mechanism being provided at the lower end of the lifting plate, a reset mechanism being provided at the upper end of the lifting plate, a groove being provided at the upper end of the lifting plate and close to the center position, an eccentric wheel being provided in the groove, a part of the eccentric wheel passing through the groove upward, a rotating rod being fixedly inserted in the eccentric wheel, both ends of the rotating rod passing through the eccentric wheel and being rotatably connected with a first connecting block and a second connecting block respectively, the upper ends of the first connecting block and the second connecting block being fixedly connected to the top of the storage groove, and a driving mechanism being provided between the first connecting block and the rotating rod.

Preferably, the reset mechanism includes a plurality of guide rods slidably inserted in the lifting plate, the two ends of the guide rods respectively pass through the lifting plate and are fixedly connected to the inner sides of the storage slot, and a spring is sleeved on the guide rods, and the two ends of the spring are respectively fixedly connected to the upper end of the lifting plate and the top of the storage slot.

Preferably, the walking mechanism includes a support fixed to the lower end of the lifting plate, the number of the support is four in a rectangular distribution, the lower end of the base is provided with an opening communicating with the storage slot, the lower end of the support slides and extends into the opening and is rotatably connected to a universal wheel, and the lower end of the universal wheel passes through the opening.

Preferably, the driving mechanism includes a connecting groove arranged in the first connecting block, one end of the rotating rod passes through the first connecting block and is rotatably connected to the inner wall of the connecting groove, the rotating rod and the first connecting block are rotatably connected, a servo motor is fixedly connected to the top of the connecting groove, a worm is fixedly connected to the end of the output shaft of the servo motor, the lower end of the worm is rotatably connected to the bottom of the connecting groove, and a worm wheel meshing with the worm is fixedly sleeved on the rotating rod.

Preferably, arc grooves are provided at both ends of the lifting plate, balls are rollingly connected in the arc grooves, and parts of the balls pass through the arc grooves.

Preferably, a rubber pad is fixedly connected to the lower end of the base.

Beneficial effects:

1. The lifting plate, pillar and universal wheel can be lifted and lowered by setting the servo motor, worm, worm wheel, rotating rod and eccentric wheel. By lowering the universal wheel to contact the ground, the base and the supporting tire frame body can be moved.

2. The friction between the whole body and the ground can be increased by raising the universal wheel, the overall stability can be enhanced, and the rubber pad can be used to prevent displacement, thereby improving reliability during use. The utility model can facilitate the overall movement while not affecting the overall stability during use through the arrangement of mechanisms such as pillars, lifting plates and the first connecting block, thereby improving convenience and practicality.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a hyperbolic roof steel structure support frame proposed by the present invention;

FIG2 is a schematic diagram of the internal structure of a first connecting block of a hyperbolic roof steel structure support frame proposed by the present invention;

FIG3 is a schematic structural diagram of location A of a hyperbolic roof steel structure support frame proposed by the present invention.

In the figure: 1-base, 2-support tire frame body, 3-lifting plate, 4-pillar, 5-universal wheel, 6-guide rod, 7-spring, 8-eccentric wheel, 9-rotating rod, 10-first connecting block, 11-worm gear, 12-worm, 13-servo motor, 14-rubber pad.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Referring to Figures 1-3, a hyperbolic roof steel structure support frame includes a base 1 and a support frame body 2 fixed at the upper end thereof, a rubber pad 14 is fixedly connected to the lower end of the base 1 to increase the friction between the base 1 and the ground and enhance stability, a storage groove is provided in the base 1, a lifting plate 3 is slidably connected to the inner wall of the storage groove to drive the pillar 4 to rise and fall, arc grooves are provided at both ends of the lifting plate 3, balls are rollingly connected in the arc grooves to reduce the resistance when the lifting plate 3 is raised and lowered, and part of the ball passes through the arc groove;

In this embodiment, a walking mechanism is provided at the lower end of the lifting plate 3, and the walking mechanism includes a support 4 fixed at the lower end of the lifting plate 3, for mounting a universal wheel 5, and the number of the support 4 is four and rectangularly distributed, and an opening communicating with the storage slot is provided at the lower end of the base 1, and the lower end of the support 4 slides and extends into the opening and is rotatably connected to the universal wheel 5, for facilitating overall movement, and the lower end of the universal wheel 5 passes through the opening;

In this embodiment, a reset mechanism is provided at the upper end of the lifting plate 3, and the reset mechanism includes a plurality of guide rods 6 slidably inserted in the lifting plate 3, which are used to keep the lifting plate 3 lifting and lowering in a straight line, and the two ends of the guide rods 6 respectively penetrate the lifting plate 3 and are fixedly connected to the inner sides of the storage groove, and a spring 7 is sleeved on the guide rod 6 to drive the lifting plate 3 to rise and reset, and the two ends of the spring 7 are respectively fixedly connected to the upper end of the lifting plate 3 and the top of the storage groove;

In this embodiment, a groove is provided at the upper end of the lifting plate 3 and near the center position, and an eccentric wheel 8 is provided in the groove for pushing the lifting plate 3 down. Part of the eccentric wheel 8 passes through the groove upward, and a rotating rod 9 is fixedly inserted in the eccentric wheel 8 for driving the eccentric wheel 8 to rotate. Both ends of the rotating rod 9 pass through the eccentric wheel 8 and are rotatably connected with a first connecting block 10 and a second connecting block respectively for supporting the rotating rod 9. The upper ends of the first connecting block 10 and the second connecting block are fixedly connected to the top of the storage slot;

In this embodiment, a driving mechanism is provided between the first connecting block 10 and the rotating rod 9, and the driving mechanism includes a connecting groove provided in the first connecting block 10, one end of the rotating rod 9 passes through the first connecting block 10 and is rotatably connected to the inner wall of the connecting groove, the rotating rod 9 and the first connecting block 10 are rotatably connected, a servo motor 13 is fixedly connected to the top of the connecting groove, which is used to drive the worm 12 to rotate, and the end of the output shaft of the servo motor 13 is fixedly connected to the worm 12, which is used to drive the worm wheel 11 to rotate, and the lower end of the worm 12 is rotatably connected to the bottom of the connecting groove, and the rotating rod 9 is fixedly sleeved with a worm wheel 11 meshing with the worm 12, which is used to drive the rotating rod 9 to rotate;

When the eccentric wheel 8 is in contact with the bottom of the groove, the lifting plate 3 can be pushed down (the spring 7 is stretched when the lifting plate 3 is lowered), and the lifting plate 3 drives the universal wheel 5 to descend through the pillar 4, so that the universal wheel 5 is in contact with the ground. At this time, the overall position movement operation can be achieved through the universal wheel 5. When it is not necessary to move, the servo motor 13 is started to drive the worm 12 to rotate, so that the eccentric wheel 8 rotates (the principle is as above and will not be repeated here), so that the eccentric wheel 8 is away from the bottom of the groove. At this time, the lifting plate 3 is pulled up and reset by the restoring force of the spring 7, and the lifting plate 3 drives the universal wheel 5 to rise and reset through the pillar 4, so that the universal wheel 5 is away from the ground and contacts with the ground through the base 1, thereby expanding the contact area with the ground and cooperating with the rubber pad 14 to increase the friction with the ground, thereby enhancing the overall stability.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (6)

1. A hyperbolic roof steel structure support frame, comprising a base (1) and a support frame body (2) fixed at the upper end thereof, characterized in that: a storage groove is provided in the base (1), a lifting plate (3) is slidably connected to the inner wall of the storage groove, a walking mechanism is provided at the lower end of the lifting plate (3), a reset mechanism is provided at the upper end of the lifting plate (3), a groove is provided at the upper end of the lifting plate (3) and near the center position, an eccentric wheel (8) is provided in the groove, a part of the eccentric wheel (8) passes through the groove upward, a rotating rod (9) is fixedly inserted in the eccentric wheel (8), both ends of the rotating rod (9) pass through the eccentric wheel (8) and are rotatably connected to a first connecting block (10) and a second connecting block respectively, the upper ends of the first connecting block (10) and the second connecting block are fixedly connected to the top of the storage groove, and a driving mechanism is provided between the first connecting block (10) and the rotating rod (9). 2. A hyperbolic roof steel structure support frame according to claim 1, characterized in that: the reset mechanism includes a plurality of guide rods (6) slidably inserted in the lifting plate (3), the two ends of the guide rods (6) respectively pass through the lifting plate (3) and are fixedly connected to the inner two sides of the storage groove, and a spring (7) is sleeved on the guide rods (6), and the two ends of the spring (7) are respectively fixedly connected to the upper end of the lifting plate (3) and the top of the storage groove. 3. A hyperbolic roof steel structure support frame according to claim 1, characterized in that: the walking mechanism includes a pillar (4) fixed at the lower end of the lifting plate (3), the number of the pillars (4) is four in a rectangular distribution, the lower end of the base (1) is provided with an opening connected to the storage slot, the lower end of the pillar (4) slides and extends into the opening and is rotatably connected to a universal wheel (5), and the lower end of the universal wheel (5) passes through the opening. 4. A hyperbolic roof steel structure support frame according to claim 1, characterized in that: the driving mechanism includes a connecting groove arranged in the first connecting block (10), one end of the rotating rod (9) passes through the first connecting block (10) and is rotatably connected to the inner wall of the connecting groove, the rotating rod (9) and the first connecting block (10) are rotatably connected, a servo motor (13) is fixedly connected to the top of the connecting groove, the end of the output shaft of the servo motor (13) is fixedly connected to a worm (12), the lower end of the worm (12) is rotatably connected to the bottom of the connecting groove, and a worm wheel (11) meshing with the worm (12) is fixedly sleeved on the rotating rod (9). 5. A hyperbolic roof steel structure support frame according to claim 1, characterized in that arc grooves are provided at both ends of the lifting plate (3), balls are rollingly connected in the arc grooves, and parts of the balls pass through the arc grooves. 6. A hyperbolic roof steel structure support frame according to claim 1, characterized in that a rubber pad (14) is fixedly connected to the lower end of the base (1).