A temporary support device for installing a steel structure bridge

Abstract

A temporary support device for installing a steel structure bridge comprises a trolley, a lower support plate is arranged above the trolley, a lifting mechanism is arranged between the lower support plate and the trolley, a left-right displacement mechanism is arranged at the top of the lower support plate, an upper support plate is arranged above the lower support plate, a slewing mechanism is arranged at the top of the upper support plate, a vertical support column is arranged above the upper support plate, the lower end of the support column can be rotatably assembled on the upper support plate through the slewing mechanism, the top of the support column is fixed with a support seat for placing the bridge, the upper end of the support column is provided with two symmetrically arranged baffles, the baffles are L-shaped, the two baffles are respectively located on the left and right sides of the support seat, the lower end of the baffle is hinged on the support column, an inclined electric push rod is arranged between the baffle and the support column, the upper end of the electric push rod is hinged on the baffle, and the lower end of the electric push rod is hinged on the support column. The utility model has a simple structure and is easy to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure bridge installation, in particular to a temporary supporting device for steel structure bridge installation. Background Art

[0002] A bridge is generally composed of an upper structure, a lower structure, a support and ancillary structures. The upper structure is also called a bridge span structure. With the development of steel structure technology, many bridges adopt steel structures. Therefore, during the splicing and installation process of steel structure bridges, temporary supports are required for the steel structure bridges. In the prior art, there is a lack of corresponding support devices. Generally, the steel structure bridge is lifted by lifting equipment, and then multiple sections of the steel structure bridge are installed and welded. Since the steel structure bridge is lifted by lifting equipment, it is easy to swing or shake during the installation process. Therefore, the steel structure bridge is not easy to position during the installation process and is prone to technical problems such as shaking, which affects the work efficiency and work quality of the staff. Utility Model Content

[0003] In order to solve the technical problem that the existing steel structure bridge is inconvenient to install due to the lack of temporary supporting devices, the utility model provides a temporary supporting device for installing the steel structure bridge, including a trolley. The bottom end of the trolley is provided with a walking mechanism. The walking mechanism includes a plurality of legs fixed at the bottom end of the trolley. The lower ends of the legs can be rotatably equipped with walking wheels. The arrangement of the walking wheels makes it easy to move the trolley. A horizontally arranged lower support plate is provided above the trolley, and the lower support plate plays a supporting role. A lifting mechanism for lifting the lower support plate is provided between the lower support plate and the trolley, and the lifting mechanism includes four vertically arranged guide rods, and the bottom ends of the guide rods are fixed to the top of the trolley, and also includes a horizontally arranged support platform, and the support platform can be slidably assembled on the guide rods; the middle thread of the support platform is connected with a vertically arranged first lead screw, and the lower end of the first lead screw can be rotatably assembled on the trolley through a bearing, and a lifting motor is fixed to the bottom end of the trolley, and the power output shaft of the lifting motor is transmission-connected with the lower end of the first lead screw. When the lifting motor is started, the lifting motor drives the first lead screw to rotate, and the height of the support platform is adjusted by controlling the forward and reverse rotation of the lifting motor, and a number of vertically arranged columns are fixed to the top of the support platform, and the tops of the columns are fixed to the bottom end of the lower support plate. The top end of the lower support plate is provided with a left and right displacement mechanism, and an upper support plate is provided above the lower support plate, and the upper support plate is assembled on the lower support plate through the left and right displacement mechanism, and the left and right displacement mechanism includes two vertical plates that are vertically and spaced apart and fixed at the top end of the lower support plate, and a horizontally arranged second lead screw is provided between the two vertical plates, and both ends of the second lead screw can be rotatably assembled on the vertical plates, and a displacement motor is provided on one of the vertical plates, and a power output shaft of the displacement motor is transmission connected with the second lead screw, and two support blocks arranged at intervals are threadedly connected on the second lead screw, and the upper end of the support block is fixed to the bottom end of the upper support plate, and a guide groove arranged parallel to the second lead screw is opened at the top end of the lower support plate, and the lower end of the support block can be slidably assembled in the guide groove, and the displacement motor is started when in use, and the displacement motor drives the second lead screw to rotate, and the second lead screw pushes the support block to move in the left and right directions along the guide groove, thereby being able to adjust the displacement of the upper support plate in the left and right directions. A slewing mechanism is provided at the top of the upper support plate, a vertical support column is provided above the upper support plate, and the lower end of the support column can be rotatably assembled on the upper support plate through the slewing mechanism. The slewing mechanism includes a slewing support and a slewing motor. The support column can be rotatably arranged on the upper support plate through the slewing support, and the slewing motor is connected to the slewing support by transmission. When the slewing motor is started, the slewing motor drives the support column to rotate through the slewing support, so that the angle of the support seat on the top of the support column can be adjusted to facilitate supporting the bridge. The top of the support column is fixed with a support seat for placing the bridge. Two symmetrically arranged baffles are provided at the upper end of the support column. The baffles are L-shaped. The two baffles are respectively located on the left and right sides of the support seat. The lower end of the baffle is hinged on the support column. An inclined electric push rod is provided between the baffle and the support column. The upper end of the electric push rod is hinged on the baffle, and the lower end of the electric push rod is hinged on the support column. The baffle and the electric push rod are set. When the electric push rod is started, the electric push rod drives the baffle to rotate, and the baffle plays a blocking role on the bridge on the support seat.

[0004] Preferably, a placement groove matching the bridge is provided on the support seat.

[0005] Preferably, a fixing mechanism is provided at the four corners of the trolley, and the fixing mechanism includes a vertically arranged third screw, the third screw is threadedly connected to the trolley, and the lower end of the third screw extends to the bottom of the trolley, and a rotating wheel is fixed to the upper end of the third screw. When in use, the third screw is driven to rotate by the rotating wheel, and the lower end of the third screw moves downward and drills into the ground, which is convenient for fixing the trolley, preventing the trolley from moving, and improving stability.

[0006] The above solution has the following advantages:

[0007] The lifting mechanism is set up, and the first lead screw is driven to rotate by the lifting motor, and the first lead screw pushes the support platform to move in the vertical direction, so as to facilitate the adjustment of the height of the lower support plate; the left and right positioning mechanism is set up, and the displacement motor is started when in use, and the displacement motor drives the second lead screw to rotate, and the second lead screw pushes the support block to move in the left and right directions along the guide groove, so as to be able to adjust the displacement of the upper support plate in the left and right directions; the slewing mechanism is set up, which is convenient for supporting the angle of the support seat at the top of the support column and supporting the bridge; the device solves the technical problems in the prior art of lifting steel structure bridges by lifting equipment, which is prone to swing or shaking during installation and is not convenient for positioning and installation by setting the lifting mechanism, the left and right displacement mechanism, the slewing mechanism, etc., thereby improving the work efficiency and work quality of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] 1. Carriage; 2. Lower support plate; 3. Lifting mechanism; 4. Upper support plate; 5. Left-right displacement mechanism; 6. Support column; 7. Rotating mechanism; 8. Fixing mechanism; 9. Bridge; 11. Traveling mechanism; 12. Leg; 13. Traveling wheel; 31. Guide rod; 32. Support platform; 33. First lead screw; 34. Lifting motor; 35. Column; 51. Vertical plate; 52. Second lead screw; 53. Displacement motor; 54. Support block; 55. Guide groove; 61. Support seat; 62. Baffle; 63. Electric push rod; 71. Rotating support; 72. Rotating motor; 81. Third lead screw; 82. Rotating wheel. DETAILED DESCRIPTION

[0010] like Figure 1As shown, a temporary support device for installing a steel structure bridge includes a trolley 1. A walking mechanism 11 is provided at the bottom end of the trolley 1. The walking mechanism 11 includes a plurality of legs 12 fixed at the bottom end of the trolley 1. The lower ends of the legs 12 can be rotatably equipped with walking wheels 13. The arrangement of the walking wheels 13 facilitates the movement of the trolley 1. A horizontally arranged lower support plate 2 is provided above the trolley 1, and the lower support plate 2 plays a supporting role. A lifting mechanism 3 for lifting the lower support plate 2 is provided between the lower support plate 2 and the trolley 1. The lifting mechanism 3 includes four vertically arranged guide rods 31, and the bottom ends of the guide rods 31 are fixed to the top of the trolley 1. It also includes a horizontally arranged support platform 32, and the support platform 32 can be slidably assembled on the guide rods 31; the middle thread of the support platform 32 is connected with a vertically arranged first lead screw 33, and the lower end of the first lead screw 33 can be rotatably assembled on the trolley 1 through a bearing, and a lifting motor 34 is fixed to the bottom end of the trolley 1, and the power output shaft of the lifting motor 34 is transmission-connected with the lower end of the first lead screw 33. When the lifting motor 34 is started, the lifting motor 34 drives the first lead screw 33 to rotate, and the height of the support platform 32 is adjusted by controlling the forward and reverse rotation of the lifting motor 34, and a plurality of vertically arranged columns 35 are fixed to the top of the support platform 32, and the top of the column 35 is fixed to the bottom end of the lower support plate 2. A left-right displacement mechanism 5 is provided at the top of the lower support plate 2, an upper support plate 4 is provided above the lower support plate 2, and the upper support plate 4 is assembled on the lower support plate 2 through the left-right displacement mechanism 5. The left-right displacement mechanism 5 includes two vertical plates 51 fixed at intervals on the top of the lower support plate 2, a second screw 52 is horizontally arranged between the two vertical plates 51, and both ends of the second screw 52 can be rotatably assembled on the vertical plates 51, and a displacement motor 53 is provided on one of the vertical plates 51, and the power output shaft of the displacement motor 53 is transmission-connected to the second screw 52. Then, the second lead screw 52 is threadedly connected to two support blocks 54 arranged at intervals. The upper end of the support block 54 is fixed to the bottom end of the upper support plate 4. The top end of the lower support plate 2 is provided with a guide groove 55 arranged parallel to the second lead screw 52. The lower end of the support block 54 can be slidably assembled in the guide groove 55. When in use, the displacement motor 53 is started, and the displacement motor 53 drives the second lead screw 52 to rotate. The second lead screw 52 pushes the support block 54 to move in the left and right directions along the guide groove 55, so as to adjust the displacement of the upper support plate 4 in the left and right directions. A slewing mechanism 7 is provided at the top of the upper support plate 4, and a vertically arranged support column 6 is provided above the upper support plate 4. The lower end of the support column 6 can be rotatably assembled on the upper support plate 4 through the slewing mechanism 7. The slewing mechanism 7 includes a slewing support 71 and a slewing motor 72. The support column 6 can be rotatably arranged on the upper support plate 4 through the slewing support 71, and the slewing motor 72 is transmission-connected to the slewing support 71. When the slewing motor 72 is started, the slewing motor 72 drives the support column 6 to rotate through the slewing support 71, so that the angle of the support seat 61 on the top of the support column 6 can be adjusted to facilitate supporting the bridge 9.The top of the support column 6 is fixed with a support seat 61 for placing the bridge 9. The upper end of the support column 6 is provided with two symmetrically arranged baffles 62. The baffles 62 are L-shaped. The two baffles 62 are respectively located on the left and right sides of the support seat 61. The lower end of the baffle 62 is hinged to the support column 6. An inclined electric push rod 63 is provided between the baffle 62 and the support column 6. The upper end of the electric push rod 63 is hinged to the baffle 62, and the lower end of the electric push rod 63 is hinged to the support column 6. The setting of the baffle 62 and the electric push rod 63 starts the electric push rod 63, and the electric push rod 63 pushes the baffle 62 to rotate, and the baffle 62 has a blocking effect on the bridge 9 on the support seat 61.

[0011] Preferably, a placement groove matching the bridge 9 is provided on the support seat 61 .

[0012] Preferably, a fixing mechanism 8 is provided at the four corners of the trolley 1, and the fixing mechanism 8 includes a vertically arranged third screw 81, the third screw 81 is threadedly connected to the trolley 1, and the lower end of the third screw 81 extends to the bottom of the trolley 1, and a rotating wheel 82 is fixed to the upper end of the third screw 81. When in use, the third screw 81 is driven to rotate by the rotating wheel 82, and the lower end of the third screw 81 moves downward and drills into the ground, which is convenient for fixing the trolley 1, avoiding the movement of the trolley 1, and improving stability.

[0013] Usage process:

[0014] When the utility model is in use, the trolley 1 is first pushed to the designated position below the bridge 9, and the third lead screw 81 is rotated by the rotating wheel 82, and the third lead screw 81 is inserted downward into the deep ground to fix the trolley 1 on the ground. Then, according to actual needs, the height of the support seat 61 is adjusted, and the lifting motor 34 is started. The lifting motor 34 drives the first lead screw 33 to rotate, and the first lead screw 33 pushes the support platform 32 to move in the vertical direction along the guide rod 31; then the displacement motor 53 is started, and the displacement motor 53 drives the second lead screw 52 to rotate, and the second lead screw 52 is driven by the displacement motor 53. The lever 52 pushes the support block 54 to move in the left and right directions along the guide groove 55, thereby adjusting the displacement of the upper support plate 4 in the left and right directions; then the rotary motor 72 is started, and the rotary motor 72 drives the support column 6 to rotate through the rotary support 71, thereby adjusting the angle of the support seat 61 on the top of the support column 6 to facilitate supporting the bridge 9. When the support seat 61 is lowered to the bridge 9, the two electric push rods 63 are started at the same time. The free ends of the electric push rods 63 extend and push the baffle 62 to rotate to the two sides of the bridge 9, thereby blocking and protecting the bridge 9.

[0015] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A temporary support device for installing a steel structure bridge, comprising a trolley, a horizontally arranged lower support plate is arranged above the trolley, and a lifting mechanism for lifting the lower support plate is arranged between the lower support plate and the trolley, characterized in that: A left-right displacement mechanism is provided at the top of the lower support plate, an upper support plate is provided above the lower support plate, the upper support plate is assembled on the lower support plate through the left-right displacement mechanism, a slewing mechanism is provided at the top of the upper support plate, a vertically arranged support column is provided above the upper support plate, the lower end of the support column can be rotatably assembled on the upper support plate through the slewing mechanism, the top of the support column is fixed to a support seat for placing the bridge, two symmetrically arranged baffles are provided at the upper end of the support column, the baffles are L-shaped, the two baffles are respectively located on the left and right sides of the support seat, the lower end of the baffle is hinged to the support column, an inclined electric push rod is provided between the baffle and the support column, the upper end of the electric push rod is hinged to the baffle, and the lower end of the electric push rod is hinged to the support column.

2. A temporary support device for installing a steel structure bridge according to claim 1, characterized in that: The lifting mechanism includes four vertically arranged guide rods, the bottom ends of the guide rods are fixed to the top of the trolley, and also includes a horizontally arranged support platform, which can be slidably assembled on the guide rods; the middle thread of the support platform is connected with a vertically arranged first lead screw, and the lower end of the first lead screw can be rotatably assembled on the trolley through a bearing, and a lifting motor is fixed to the bottom end of the trolley, and the power output shaft of the lifting motor is transmission-connected to the lower end of the first lead screw, and a number of vertically arranged columns are fixed to the top of the support platform, and the top ends of the columns are fixed to the bottom end of the lower support plate.

3. The temporary support device for installing a steel structure bridge according to claim 1, characterized in that: The left and right displacement mechanism includes two vertical plates fixed at intervals on the top end of the lower support plate, a horizontally arranged second lead screw is provided between the two vertical plates, and both ends of the second lead screw can be rotatably assembled on the vertical plates, one of the vertical plates is provided with a displacement motor, a power output shaft of the displacement motor is transmission-connected to the second lead screw, two support blocks arranged at intervals are threadedly connected on the second lead screw, the upper end of the support block is fixed to the bottom end of the upper support plate, a guide groove arranged parallel to the second lead screw is provided on the top end of the lower support plate, and the lower end of the support block can be slidably assembled in the guide groove.

4. The temporary support device for installing a steel structure bridge according to claim 1, characterized in that: The slewing mechanism comprises a slewing support and a slewing motor. The support column is rotatably arranged on the upper support plate through the slewing support, and the slewing motor is transmission-connected to the slewing support.

5. The temporary support device for installing a steel structure bridge according to claim 1, characterized in that: The supporting seat is provided with a placement groove which matches the bridge.

6. The temporary support device for installing a steel structure bridge according to claim 1, characterized in that: A traveling mechanism is arranged at the bottom end of the trolley. The traveling mechanism comprises a plurality of legs fixed at the bottom end of the trolley. The lower ends of the legs are rotatably equipped with traveling wheels.

7. A temporary support device for installing a steel structure bridge according to claim 6, characterized in that: The four corners of the trolley are provided with fixing mechanisms, which include a vertically arranged third lead screw, which is threadedly connected to the trolley, and the lower end of the third lead screw extends to the bottom of the trolley, and a rotating wheel is fixed to the upper end of the third lead screw.

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