Auxiliary mounting device for box girder hoisting bolts

Abstract

The utility model belongs to the technical field of box girder hoisting auxiliary equipment, and particularly relates to a box girder hoisting bolt auxiliary installation device which comprises a frame, a lifting frame is arranged on the frame, a platform is arranged at the front end of the lifting frame, directional wheels rolling in the front-back direction are arranged on the two sides of the front end of the frame, and the directional wheels are arranged on the lifting frame. Universal wheels are arranged on the two sides of the rear end of the frame, an inclined strut is connected between the frame and the side face of the lifting frame, the bottom end of the inclined strut is rotationally connected with the frame, and when the lifting frame is located at the highest position, the top end of the inclined strut inclines backwards and supports the lifting frame. The box girder hoisting bolt mounting tool has the advantages that operators can conveniently carry out box girder hoisting bolt mounting operation, and the operation safety and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for box girder hoisting; specifically, this utility model relates to an auxiliary installation device for box girder hoisting bolts. Background Technology

[0002] Currently, in the process of using a beam-moving machine for box girder hoisting, the installation of lifting equipment relies heavily on manual labor, especially the transportation and assembly of the lifting equipment and bolts after lifting them to the appropriate height. This is physically demanding and inefficient, as the installation of lifting equipment at more than ten locations on the box girder requires a significant amount of time. Furthermore, the structure of the box girder opening makes it difficult for workers to stand, further complicating the lifting operation. Therefore, this application provides an auxiliary installation device for box girder lifting bolts. Utility Model Content

[0003] In view of this, the present invention provides an auxiliary installation device for box girder hoisting bolts, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objective, this utility model provides an auxiliary installation device for box girder hoisting bolts, comprising a frame, a lifting frame mounted on the frame, a platform at the front end of the lifting frame, directional wheels that roll in the front-rear direction on both sides of the front end of the frame, universal wheels on both sides of the rear end of the frame, and diagonal braces connecting the frame and the side of the lifting frame. The bottom end of the diagonal brace is rotatably connected to the frame, and when the lifting frame is at its highest position, the diagonal brace tilts backward at its top and supports the lifting frame.

[0005] In the box girder hoisting bolt auxiliary installation device described above, optionally, the diagonal brace includes a straight part and an arc-shaped part. The bottom end of the straight part is rotatably connected to the side of the frame. The arc-shaped part extends upward from the top end of the straight part, and the arc-shaped part is centered on the bottom end of the straight part. The lifting frame is provided with a sliding rod for sliding within the diagonal brace. When the lifting frame is supported by the diagonal brace at its highest position, the sliding rod is located at the top end of the arc-shaped part, and the sliding rod is located behind the bottom end of the straight part in the front-back direction.

[0006] In the box girder hoisting bolt auxiliary installation device described above, optionally, the diagonal brace is provided with a through groove connecting the straight part and the arc-shaped part, and the sliding rod is slidably engaged with the through groove.

[0007] In the box girder hoisting bolt auxiliary installation device described above, optionally, the two sides of the frame are provided with liftable side support plates, the directional wheels and omnidirectional wheels are respectively installed at both ends of the side support plates, and when the lifting frame rises, the side support plates are displaced upward so that the frame is supported on the ground.

[0008] In the box girder hoisting bolt auxiliary installation device described above, optionally, a toothed plate is fixedly installed on one side of the side support plate facing the frame, a drive gear is fixedly installed at the bottom end of the diagonal brace, the drive gear meshes with a reversing gear, the reversing gear meshes with the toothed plate, and when the diagonal brace swings upward, the toothed plate moves upward.

[0009] In the box girder hoisting bolt auxiliary installation device described above, optionally, the side support plate slides with the frame in the height direction.

[0010] In the box girder hoisting bolt auxiliary installation device described above, optionally, a lifting screw is rotatably installed at the rear end of the frame, and the rear end of the lifting frame is threadedly engaged with the lifting screw.

[0011] In the box girder hoisting bolt auxiliary installation device described above, optionally, two sets of pulley groups are provided on both sides of the rear end of the lifting frame, which are distributed opposite to each other in the front-rear direction. The two longitudinal beams of the frame have an "H" shaped structure, and the pulley groups are slidably arranged in the groove cavity of the longitudinal beams.

[0012] This utility model discloses an auxiliary installation device for box girder hoisting bolts. A lifting platform supports the box girder hoisting bolts and lifting equipment to a suitable installation height, eliminating the need for manual lifting by workers, reducing operational difficulty and improving safety. Simultaneously, it increases the efficiency of lifting equipment installation. Furthermore, the diagonal bracing further enhances the stability of the lifting platform when it reaches its highest position, improving operational safety. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of the auxiliary installation device for box girder hoisting bolts of this utility model;

[0015] Figure 2 This utility model relates to an auxiliary installation device for box girder hoisting bolts. Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the frame and diagonal brace of the auxiliary installation device for box girder hoisting bolts of this utility model;

[0017] Figure 4 This utility model relates to an auxiliary installation device for box girder hoisting bolts. Figure 3 Enlarged view at point B in the middle;

[0018] Figure 5 This utility model relates to an auxiliary installation device for box girder hoisting bolts. Figure 3A partial sectional view;

[0019] Figure 6 This utility model relates to an auxiliary installation device for box girder hoisting bolts. Figure 5 Enlarged view at point C;

[0020] Figure 7 This is a schematic diagram of the lifting frame and lifting screw of the auxiliary installation device for box girder hoisting bolts of this utility model.

[0021] Reference numerals in the attached diagram: 1-Frame; 2-Lifting frame; 3-Platform; 4-Directional wheel; 5-Universal wheel; 6-Diagonal brace; 7-Slide rod; 8-Through groove; 9-Side support plate; 10-Gear plate; 11-Drive gear; 12-Reversing gear; 13-Lifting screw; 14-Pulley block. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 7 As shown, a typical embodiment of this utility model provides an auxiliary installation device for box girder hoisting bolts, including a frame 1, a lifting frame 2 on the frame 1, a platform 3 at the front end of the lifting frame 2, directional wheels 4 that roll in the front-rear direction on both sides of the front end of the frame 1, universal wheels 5 on both sides of the rear end of the frame 1, and a diagonal brace 6 connecting the side of the frame 1 and the lifting frame 2. The bottom end of the diagonal brace 6 is rotatably connected to the frame 1, and when the lifting frame 2 is in the highest position, the diagonal brace 6 tilts backward at its top and supports the lifting frame 2.

[0024] Platform 3 is used to place the box girder hoisting bolts and lifting tools. The direction of travel of the installation device can be adjusted by the casters 5. With the cooperation of the casters 5 and the directional wheels 4, the installation device transports the box girder hoisting bolts and lifting tools to the area below the installation position. Then, the lifting frame 2 raises the box girder hoisting bolts and lifting tools to the installation height. The lifting frame 2 is then supported by the diagonal brace 6 on the suspended side of the lifting frame 2 to improve its stability.

[0025] Furthermore, the diagonal brace 6 includes a straight portion and an arc-shaped portion. The bottom end of the straight portion is rotatably connected to the side of the frame 1. The arc-shaped portion extends upward from the top end of the straight portion, and the arc-shaped portion is centered on the bottom end of the straight portion. The lifting frame 2 is provided with a sliding rod 7 for sliding within the diagonal brace 6. When the lifting frame 2 is supported by the diagonal brace 6 at its highest position, the sliding rod 7 is located at the top end of the arc-shaped portion, and the sliding rod 7 is located behind the bottom end of the straight portion in the front-back direction.

[0026] During the ascent of the lifting frame 2, the sliding of the slide rod 7 within the diagonal brace 6 causes the diagonal brace 6 to swing upward in sync with the lifting frame 2. When the lifting frame 2 reaches its highest position, the slide rod 7 moves to the hinge point between the straight and curved sections. At this point, the diagonal brace 6 swings backward around its bottom, causing the slide rod 7 to move to the top of the curved section. At this time, the diagonal brace 6 is in a state where its center of gravity is tilted backward and it is suspended by the slide rod 7, thus stably supporting the lifting frame 2.

[0027] Before lowering the lifting frame 2, push the diagonal brace 6 forward so that the slide bar 7 moves to the junction of the straight part and the curved part, and then lower the lifting frame 2. During the descent of the lifting frame 2, the diagonal brace 6 moves synchronously with the lifting frame 2 and returns to its original position.

[0028] In a relatively specific embodiment, the diagonal brace 6 is provided with a through groove 8 that connects the straight part and the arc-shaped part, and the slide rod 7 slides in the through groove 8.

[0029] The frame 1 has adjustable side support plates 9 on both sides. Directional wheels 4 and swivel wheels 5 are installed at both ends of the side support plates 9. When the lifting frame 2 rises, the side support plates 9 move upwards, supporting the frame 1 on the ground. This arrangement ensures that when the lifting frame 2 is at its highest position, the swivel wheels 5 and directional wheels relieve their supporting force on the frame 1, allowing the frame 1 to rest firmly on the ground, further improving stability and safety.

[0030] In a relatively specific embodiment, a toothed plate 10 is fixedly provided on one side of the side support plate 9 facing the frame 1, and a drive gear 11 is fixedly provided at the bottom end of the diagonal brace 6. The drive gear 11 meshes with a reversing gear 12, and the reversing gear 12 meshes with the toothed plate 10. When the diagonal brace 6 swings upward, the toothed plate 10 moves upward.

[0031] As the lifting frame 2 moves upward and the diagonal brace 6 swings, the drive gear 11 drives the reversing gear 12 to rotate, the reversing gear 12 drives the toothed plate 10 to move upward, and the toothed plate 10 drives the side support plate 9 to move upward, so that the side support plate 9 lifts the universal wheel 5 and the directional wheel 4 upward.

[0032] Specifically, before the slide bar 7 moves to the junction of the straight and curved sections, the caster wheel 5 and the directional wheel 4 have already left the ground. The side support plate 9 slides in conjunction with the frame 1 in the height direction.

[0033] The rear end of frame 1 is rotatably mounted with a lifting screw 13, and the rear end of the lifting frame 2 is threadedly engaged with the lifting screw 13. A handle is provided at the bottom of the lifting screw, and the operator rotates the lifting screw 13 by operating the handle, thereby controlling the lifting movement of the lifting frame 2.

[0034] Two sets of pulley blocks 14, distributed opposite each other in the front-to-back direction, are provided on both sides of the rear end of the lifting frame 2. The two longitudinal beams of the frame 1 have an "H"-shaped structure, and the pulley blocks 14 are slidably disposed in the grooves of the longitudinal beams. By setting up the pulley blocks 14, the friction between the lifting frame 2 and the longitudinal beams is reduced, making the lifting movement of the lifting frame 2 smoother.

[0035] Since the side support plate 9 slides with the frame 1 in the height direction, the weight of the installation device can be converted into the power for the casters 5 and the directional wheels 4 to move upward and leave the ground. This power is used to provide force for the diagonal brace 6 to swing upward during the lifting process of the lifting frame 2. Thus, the diagonal brace 6 always provides upward support force for the lifting frame 2.

[0036] After the casters 5 and directional wheels 4 leave the ground, as the lifting frame 2 continues to rise, the diagonal brace 6 continues to swing, which will drive the casters 5 and directional wheels 4 to continue to move upward. When the slide bar 7 moves to the junction of the straight part and the arc-shaped part, the slide bar 7 enters the arc-shaped part. At this time, under the gravity of the casters 5, directional wheels 4 and side support plate 9, the diagonal brace 6 swings forward, adjusting the diagonal brace 6 to a stable state that supports the lifting frame 2.

[0037] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. An auxiliary installation device for box girder hoisting bolts, characterized in that, The system includes a frame (1), on which a lifting frame (2) is provided. A platform (3) is provided at the front end of the lifting frame (2). Targeted wheels (4) that roll in the front-rear direction are provided on both sides of the front end of the frame (1). Universal wheels (5) are provided on both sides of the rear end of the frame (1). An inclined brace (6) is connected between the side of the frame (1) and the lifting frame (2). The bottom end of the inclined brace (6) is rotatably connected to the frame (1). When the lifting frame (2) is in the highest position, the inclined brace (6) tilts backward at its top and supports the lifting frame (2).

2. The auxiliary installation device for box girder hoisting bolts as described in claim 1, characterized in that, The diagonal brace (6) includes a straight part and an arc-shaped part. The bottom end of the straight part is rotatably connected to the side of the frame (1). The arc-shaped part extends upward from the top end of the straight part and the bottom end of the straight part is the center of the arc-shaped part. The lifting frame (2) is provided with a sliding rod (7) for sliding in the diagonal brace (6). When the lifting frame (2) is supported by the diagonal brace (6) at the highest position, the sliding rod (7) is located at the top end of the arc-shaped part and the sliding rod (7) is located behind the bottom end of the straight part in the front-back direction.

3. The auxiliary installation device for box girder hoisting bolts as described in claim 2, characterized in that, The diagonal brace (6) is provided with a through groove (8) that connects the straight part and the arc-shaped part, and the slide rod (7) slides in conjunction with the through groove (8).

4. The auxiliary installation device for box girder hoisting bolts as described in claim 1, characterized in that, The frame (1) is provided with side support plates (9) that can be raised and lowered on both sides. The directional wheels (4) and universal wheels (5) are respectively installed at both ends of the side support plates (9). When the lifting frame (2) rises, the side support plates (9) are displaced upward so that the frame (1) is supported on the ground.

5. The auxiliary installation device for box girder hoisting bolts as described in claim 4, characterized in that, A toothed plate (10) is fixedly provided on one side of the side support plate (9) facing the frame (1). A drive gear (11) is fixedly provided at the bottom end of the diagonal brace (6). The drive gear (11) meshes with a reversing gear (12). The reversing gear (12) meshes with the toothed plate (10). When the diagonal brace (6) swings upward, the toothed plate (10) moves upward.

6. The auxiliary installation device for box girder hoisting bolts as described in claim 4, characterized in that, The side support plate (9) slides in conjunction with the frame (1) in the height direction.

7. The auxiliary installation device for box girder hoisting bolts as described in claim 1, characterized in that, The rear end of the frame (1) is rotatably mounted with a lifting screw (13), and the rear end of the lifting frame (2) is threadedly engaged with the lifting screw (13).

8. The auxiliary installation device for box girder hoisting bolts as described in claim 7, characterized in that, The lifting frame (2) has two sets of pulley groups (14) arranged opposite to each other in the front-rear direction on both sides of the rear end. The two longitudinal beams of the frame (1) have an "H" shaped structure. The pulley groups (14) are slidably arranged in the groove cavity of the longitudinal beam.

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