A steel box girder hoisting and positioning device

Abstract

The utility model discloses a kind of steel box girder hoisting positioning devices, it is related to steel box girder positioning technical field, including support column, the top of support column is fixedly connected with support plate, the top of support plate is fixedly connected with shell, the top of shell is provided with mounting plate, the top of mounting plate is opened with sliding slot in four corner position, sliding slot is fixedly connected with slide bar between the middle of two sides, the bottom of mounting plate is provided with adjusting mechanism;The steel box girder hoisting positioning device, by rotating carousel, drive first screw rod to rotate, utilize the restriction of first limit rod, so that moving plate is lowered outside first screw rod, so that second connecting seat is lowered, drive connecting rod to deflect to vertical direction, so that first connecting seat is mutually close, drive positioning support block to mutually close, adjust spacing, it is convenient for the positioning support of multiple models steel box girder, avoid manufacturing multiple models device, save cost, improve the applicability of device.

Description

Technical Field

[0001] This utility model relates to the field of steel box girder positioning technology, specifically a steel box girder hoisting and positioning device. Background Technology

[0002] Steel box girders, also known as steel plate box girders, are a common structure for highway bridges. They are hollow inside and resemble a box in shape, hence the name steel box girder. Steel box girders are generally installed by using cranes for hoisting and splicing.

[0003] Chinese Patent Publication No. CN217499936U discloses a rapid positioning device for steel box girder hoisting, comprising two positioning devices symmetrically arranged on an I-beam, with multiple adjusting pipes between the two positioning devices. Two steel columns are arranged parallel to each other below the I-beam and fixed to a concrete foundation. The positioning device includes a support body with a positioning step on it, which supports the bottom of the steel box girder. A first inclined surface is provided on one side of the positioning step, which abuts against the outer wall of the steel box girder. The adjusting pipes are used to adjust the bottom state of the steel box girder. This application is convenient to use, can significantly improve the hoisting and installation efficiency of steel box girders, reduce labor intensity, shorten adjustment time, and ensure overall operation. However, the spacing of the positioning support body in the above patent is fixed, which is inconvenient to adjust. Different supports are required when installing different steel box girders, resulting in poor applicability of the device. Therefore, we propose a steel box girder hoisting and positioning device. Utility Model Content

[0004] The purpose of this utility model is to provide a steel box girder hoisting and positioning device to solve the problem that the spacing of the positioning support body in the prior art is fixed and inconvenient to adjust, and different supports are required when installing different steel box girders, resulting in poor applicability of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel box girder hoisting and positioning device, comprising a support column, a support plate fixedly connected to the top of the support column, a housing fixedly connected to the top of the support plate, an mounting plate provided on the top of the housing, sliding grooves provided at the four corners of the top of the mounting plate, sliding rods fixedly connected between the middle of the two sides of the sliding grooves, an adjustment mechanism provided at the bottom of the mounting plate, a deflection mechanism provided inside the housing, connecting plates symmetrically fixedly connected to one side of the bottom of the mounting plate, and a rotating shaft fixedly connected through the opposite sides of the two connecting plates.

[0006] Preferably, the adjusting mechanism includes a first connecting seat slidably connected to the outside of the slide rod, a connecting rod rotatably connected inside the first connecting seat, a positioning support block fixedly connected to the top of the first connecting seat, a first screw rotatably connected through a bearing to the middle of one side of the bottom of the mounting plate, a turntable fixedly connected to the bottom end of the first screw, a first limiting rod fixedly connected to the middle of the other side of the bottom of the mounting plate, a movable plate screwed to the outer wall of the first screw, and second connecting seats symmetrically fixedly connected to both sides of the movable plate.

[0007] Preferably, one end of the connecting rod is rotatably connected to the inside of the second connecting seat, and the movable plate is slidably connected to the outside of the first limiting rod to limit the movable plate.

[0008] Preferably, the rotating shaft passes through both sides of the outer casing, and the rotating shaft is rotatably connected to the outer casing, which facilitates the deflection of the mounting plate.

[0009] Preferably, the deflection mechanism includes a second screw that is rotatably connected to the bottom between the two sides of the inner cavity of the outer shell, a second limiting rod that is symmetrically fixedly connected to the bottom between the two sides of the inner cavity of the outer shell, a movable seat that is screwed to the outer side wall of the second screw, a deflection plate that is rotatably connected to the inside of the movable seat, a rotating seat that is fixedly connected to the bottom edge of the mounting plate, and a drive motor that is fixedly connected to one side of the outer shell.

[0010] Preferably, the deflection plate is rotatably connected to the rotating seat, and the movable seat is slidably connected to the outer wall of the second limiting rod to limit the movable seat.

[0011] Preferably, the output shaft end of the drive motor is fixedly connected to one end of the second screw, and the input end of the drive motor is electrically connected to the output end of an external power supply, so as to facilitate driving the second screw to rotate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application utilizes an adjustment mechanism. By rotating the turntable, the first screw is driven to rotate. The first limiting rod restricts the movement, causing the moving plate to descend outside the first screw, which in turn causes the second connecting seat to descend. This causes the connecting rod to deflect vertically, bringing the first connecting seats closer together and the positioning support blocks closer together. The spacing is adjusted to facilitate positioning and support for various types of steel box girders, avoiding the need to manufacture multiple types of devices, saving costs, and improving the applicability of the device.

[0014] 2. In this application, by setting up a deflection mechanism, the drive motor is started to drive the second screw to rotate. The second limit rod restricts the movement of the moving seat, thereby causing the deflection plate to deflect and lift the rotating seat. This causes the mounting plate to deflect around the rotating shaft, making the steel box girder tilt. This facilitates changing the slope of the steel box girder, making it easy to adjust according to the terrain and improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the deflection mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the shaft mounting structure of this utility model.

[0020] The following numbers are used in the diagram: 100, support column; 200, support plate; 300, outer shell; 400, mounting plate; 500, adjusting mechanism; 510, first connecting seat; 520, connecting rod; 530, positioning support block; 540, first screw; 541, turntable; 550, first limit rod; 560, moving plate; 570, second connecting seat; 580, slide groove; 590, slide rod; 600, deflection mechanism; 610, second screw; 620, second limit rod; 630, moving seat; 640, deflection plate; 650, rotating seat; 660, drive motor; 670, rotating shaft; 680, connecting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figures 1-5As shown, this utility model provides a technical solution for a steel box girder hoisting and positioning device, including a support column 100, a support plate 200 fixedly connected to the top of the support column 100, a housing 300 fixedly connected to the top of the support plate 200, an installation plate 400 provided on the top of the housing 300, sliding grooves 580 provided at the four corners of the top of the installation plate 400, sliding rods 590 fixedly connected between the middle of the two sides of the sliding grooves 580, an adjustment mechanism 500 provided at the bottom of the installation plate 400, a deflection mechanism 600 provided inside the housing 300, connecting plates 680 symmetrically fixedly connected to one side of the bottom of the installation plate 400, and a rotating shaft 670 fixedly connected through the opposite sides of the two connecting plates 680; the rotating shaft 670 passes through the two sides of the housing 300, and the rotating shaft 670 is rotatably connected to the housing 300.

[0023] Please see Figure 3 The adjusting mechanism 500 includes a first connecting seat 510 slidably connected to the outside of the slide rod 590, a connecting rod 520 rotatably connected inside the first connecting seat 510, a positioning support block 530 fixedly connected to the top of the first connecting seat 510, a first screw 540 rotatably connected through a bearing to the middle of one side of the bottom of the mounting plate 400, a turntable 541 fixedly connected to the bottom end of the first screw 540, a first limiting rod 550 fixedly connected to the middle of the other side of the bottom of the mounting plate 400, a moving plate 560 screwed to the outer wall of the first screw 540, and second connecting seats 570 symmetrically fixedly connected to both sides of the moving plate 560; one end of the connecting rod 520 rotates. Connected inside the second connecting seat 570, the movable plate 560 is slidably connected to the outside of the first limiting rod 550. Utilizing the adjusting mechanism 500, rotating the turntable 541 drives the first screw 540 to rotate. The first limiting rod 550 restricts the movement of the movable plate 560, causing it to descend outside the first screw 540, thus lowering the second connecting seat 570. This causes the connecting rod 520 to deflect vertically, bringing the first connecting seats 510 closer together and causing the positioning support blocks 530 to move closer together. Adjusting the spacing facilitates positioning and support for various types of steel box girders, avoiding the need to manufacture multiple types of devices, saving costs, and improving the applicability of the device.

[0024] Please see Figure 4The deflection mechanism 600 includes a second screw 610 that is rotatably connected to the bottom between the two sides of the inner cavity of the outer shell 300. A second limiting rod 620 is symmetrically fixedly connected to the bottom between the two sides of the inner cavity of the outer shell 300. A movable seat 630 is screwed to the outer side wall of the second screw 610. A deflection plate 640 is rotatably connected to the inside of the movable seat 630. A rotating seat 650 is fixedly connected to the bottom edge of the mounting plate 400. A drive motor 660 is fixedly connected to one side of the outer shell 300. The deflection plate 640 and the rotating seat 650 are rotatably connected. The movable seat 630 is slidably connected to the outer side wall of the second limiting rod 620. The output shaft end of the drive motor 660 is fixedly connected to one end of the second screw 610, and the input end of the drive motor 660 is electrically connected to the output end of the external power supply. With the deflection mechanism 600, by starting the drive motor 660, the second screw 610 is driven to rotate. With the restriction of the second limit rod 620, the moving seat 630 moves, thereby causing the deflection plate 640 to deflect and lift the rotating seat 650. This causes the mounting plate 400 to deflect around the rotating shaft 670, making the steel box girder tilt. This facilitates changing the slope of the steel box girder, making it easy to adjust according to the terrain and improving the practicality of the device.

[0025] In use, the following steps are taken: First, the support column 100 is fixedly installed. Then, the turntable 541 is rotated, causing the first screw 540 to rotate. Using the first limiting rod 550, the moving plate 560 descends outside the first screw 540, causing the second connecting seat 570 to descend. This causes the connecting rod 520 to deflect vertically, bringing the first connecting seats 510 closer together and causing the positioning support blocks 530 to move closer together. The spacing is adjusted according to the bottom length of the steel box girder. After the steel box girder is lifted, the steel box is placed... The top of the positioning support block 530 is positioned so that the steel box girder is engaged with the top of the positioning support block 530, thus completing the positioning and preventing deviation. When the slope of the steel box girder needs to be adjusted, the drive motor 660 is started, which drives the second screw 610 to rotate. The second limit rod 620 restricts the movement of the moving seat 630, thereby causing the deflection plate 640 to deflect and lift the rotating seat 650. This causes the mounting plate 400 to deflect around the rotating shaft 670, making the steel box girder tilt, which facilitates changing the slope of the steel box girder and makes it convenient to install and adjust according to the terrain.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A steel box girder hoisting and positioning device, characterized in that: The system includes a support column (100), a support plate (200) fixedly connected to the top of the support column (100), a housing (300) fixedly connected to the top of the support plate (200), a mounting plate (400) provided on the top of the housing (300), a sliding groove (580) provided at the four corners of the top of the mounting plate (400), a sliding rod (590) fixedly connected between the middle of the two sides of the sliding groove (580), an adjustment mechanism (500) provided at the bottom of the mounting plate (400), a deflection mechanism (600) provided inside the housing (300), a connecting plate (680) symmetrically fixedly connected to one side of the bottom of the mounting plate (400), and a rotating shaft (670) fixedly connected through the opposite sides of the two connecting plates (680).

2. The steel box girder hoisting and positioning device according to claim 1, characterized in that: The adjusting mechanism (500) includes a first connecting seat (510) slidably connected to the outside of the slide rod (590), a connecting rod (520) rotatably connected inside the first connecting seat (510), a positioning support block (530) fixedly connected to the top of the first connecting seat (510), a first screw (540) rotatably connected through a bearing through the middle of one side of the bottom of the mounting plate (400), a turntable (541) fixedly connected to the bottom end of the first screw (540), a first limiting rod (550) fixedly connected to the middle of the other side of the bottom of the mounting plate (400), a moving plate (560) screwed to the outer wall of the first screw (540), and second connecting seats (570) symmetrically fixedly connected to both sides of the moving plate (560).

3. The steel box girder hoisting and positioning device according to claim 2, characterized in that: One end of the connecting rod (520) is rotatably connected to the inside of the second connecting seat (570), and the moving plate (560) is slidably connected to the outside of the first limiting rod (550).

4. The steel box girder hoisting and positioning device according to claim 1, characterized in that: The rotating shaft (670) passes through both sides of the outer casing (300), and the rotating shaft (670) is rotatably connected to the outer casing (300).

5. The steel box girder hoisting and positioning device according to claim 1, characterized in that: The deflection mechanism (600) includes a second screw (610) that is rotatably connected to the bottom between the two sides of the inner cavity of the outer shell (300). A second limiting rod (620) is symmetrically fixedly connected to the bottom between the two sides of the inner cavity of the outer shell (300). A movable seat (630) is screwed to the outer wall of the second screw (610). A deflection plate (640) is rotatably connected inside the movable seat (630). A rotating seat (650) is fixedly connected to the bottom edge of the mounting plate (400). A drive motor (660) is fixedly connected to one side of the outer shell (300).

6. The steel box girder hoisting and positioning device according to claim 5, characterized in that: The deflection plate (640) is rotatably connected to the rotating seat (650), and the movable seat (630) is slidably connected to the outer wall of the second limiting rod (620).

7. A steel box girder hoisting and positioning device according to claim 5, characterized in that: The output shaft end of the drive motor (660) is fixedly connected to one end of the second screw (610), and the input end of the drive motor (660) is electrically connected to the output end of the external power supply.

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