Temporary support for high-altitude assembly of cast-in-place arch ribs of large-span steel arch

Abstract

The utility model discloses a large-span steel arch cast-in-place arch rib high-altitude assembly temporary support which comprises a supporting seat, a fixing box, a lifting mechanism, a security and protection mechanism, a lifting mechanism and a displacement mechanism. The security and protection mechanism comprises a rotating motor, a security and protection box, a connecting column, a supporting sleeve, a fixing rod and a safety bandage, the lifting mechanism comprises a lifting hydraulic rod, a jacking plate, a connecting plate and a containing and receiving box, and the displacement mechanism comprises a moving plate, a lead screw, a base, a displacement motor, a limiting rod and a rolling wheel. The utility model belongs to the technical field of arch rib assembly supports, a constructor in the security box can conveniently and automatically lift and adjust the construction height by starting the driving motor, safety protection can be carried out by binding a safety bandage, and the constructor can conveniently and flexibly move and construct in the security box; the arch ribs can be automatically lifted by opening the lifting hydraulic rods to stretch out and draw back, and meanwhile the arch ribs are contained in the containing box to be prevented from falling off.

Description

Technical Field

[0001] The utility model belongs to the technical field of arch rib assembly brackets, in particular to a temporary bracket for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame. Background Art

[0002] Most large-span bridges are steel-structured bridges. Among them, steel arch bridges have been widely used as a bridge form spanning existing roads, railways, valleys, and rivers. At present, the most widely used method for cast-in-place steel arch frame construction is to set up temporary arch rib support frames and install the arch ribs of large-span steel arch bridges in bulk at high altitude.

[0003] Temporary supports are required for auxiliary construction when assembling the cast-in-situ arch ribs of steel arch frames at high altitude. The existing temporary supports for high-altitude assembly are mostly fixed construction scaffolding. Traditional scaffolding is not convenient for construction workers to move flexibly while providing high protection for their safety. It is also inconvenient to automatically lift and displace the construction workers while lifting and preventing the arch ribs from falling at high altitude assembly. Therefore, a temporary support for high-altitude assembly of cast-in-situ arch ribs of steel arch frames with large spans is urgently needed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the current bracket for high-altitude assembly of steel arch frames and arch ribs is not convenient for construction workers to move flexibly and provide high safety protection. At the same time, it is not convenient to automatically lift and adjust the position of construction workers and prevent the arch ribs from falling.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a temporary bracket for high-altitude assembly of cast-in-place arch ribs of a large-span steel arch frame, including a support seat and a fixing box fixedly arranged on the support seat, a lifting mechanism, which is arranged on the fixing box, a security mechanism, which is arranged on the support seat, a lifting mechanism and a displacement mechanism, which are both arranged on the lifting mechanism.

[0006] In order to smoothly achieve the purpose of convenient and automated lifting and height adjustment for construction personnel, the lifting mechanism includes a threaded rod rotatably connected between the top wall and the bottom wall of the fixed box, and the top wall of the fixed box is fixed with a driving motor for driving the threaded rod to rotate. The other three groups of guide rods are fixed between the top wall and the bottom wall of the fixed box, and the threaded rod is threadedly connected with a nut plate, and the guide rod is penetrated by a nut plate slidingly connected to it.

[0007] In order to smoothly achieve the purpose of providing high safety protection for construction personnel and facilitating flexible movement, the security mechanism includes a rotating motor fixedly connected to the bottom with a nut plate, the output end of the rotating motor is connected to a security box, the bottom of the security box is relatively fixed with a connecting column that is slidably connected to the nut plate, a support sleeve is fixed to the bottom of the security box, a fixing rod is threadedly sleeved on the support sleeve, and a safety strap is slidably sleeved on the fixing rod.

[0008] In order to facilitate the lifting and assembly of the arch ribs and prevent them from falling, the lifting mechanism includes a lifting hydraulic rod fixedly connected to a nut plate, the telescopic end of the lifting hydraulic rod is connected to a lifting plate, the fixed end of the lifting hydraulic rod is penetrated by a connecting plate fixed to it, and a receiving box is fixed on the connecting plate.

[0009] In order to facilitate the automated displacement of the construction support, the displacement mechanism includes a movable plate fixedly connected to the support seat, a screw rod is threadedly connected to the movable plate, a base is rotatably connected to the screw rod, a displacement motor that drives the screw rod to rotate is fixedly provided on one side wall of the base, a limiting rod that slides through the other end of the movable plate is fixedly provided at the other end of the base, and a roller is rotatably provided at the bottom of the support seat.

[0010] Furthermore, openings are provided on the side walls of the four groups of fixed boxes, a baffle is fixedly provided on the top of the fixed rod, and a limiting strip rotatably connected to the roller is fixedly provided on the bottom wall of the base.

[0011] Furthermore, the lifting hydraulic rods are symmetrically arranged at both ends of the lifting plate, and the movable plate is symmetrically arranged at both ends of the support seat.

[0012] Preferably, the support seat is arranged in an inverted U shape, the receiving box is arranged in an inverted trapezoidal shape, and the base is arranged in a U shape.

[0013] The beneficial effects achieved by the utility model using the above structure are as follows:

[0014] 1. By turning on the drive motor, the threaded rod can be driven to rotate, thereby driving the nut plate to move up and down along each set of guide rods. This facilitates the construction workers in the security box to automatically adjust the construction height. By turning on the displacement motor, the construction position of the security box can be adjusted.

[0015] 2. Tie the safety belt around the construction workers for safety protection. By sliding the safety belt on the fixed rod, the construction workers can move flexibly inside the security box for construction.

[0016] 3. The arch rib can be automatically lifted by opening the lifting hydraulic rod to make it extend and retract. At the same time, the receiving box can receive the arch rib from the bottom to prevent it from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame proposed in this scheme;

[0018] Figure 2 A cross-sectional view of a temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame proposed in this scheme;

[0019] Figure 3 This is a cross-sectional view from another angle of a temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame proposed in this scheme;

[0020] Figure 4 This is a schematic diagram of the structure from another angle of a temporary support for high-altitude assembly of cast-in-place arch ribs of a large-span steel arch frame proposed in this plan.

[0021] Among them, 1. Support seat; 2. Fixed box; 3. Lifting mechanism; 4. Security mechanism; 5. Lifting mechanism; 6. Displacement mechanism; 7. Threaded rod; 8. Drive motor; 9. Guide rod; 10. Plate with nut; 11. Rotating motor; 12. Security box; 13. Connecting column; 14. Support sleeve; 15. Fixed rod; 16. Safety strap; 17. Lifting hydraulic rod; 18. Lifting plate; 19. Connecting plate; 20. Receive box; 21. Moving plate; 22. Screw; 23. Base; 24. Displacement motor; 25. Limit rod; 26. Roller.

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, in order to achieve the above functions, the technical solution adopted by the utility model is as follows: a temporary bracket for high-altitude assembly of cast-in-place arch ribs of a large-span steel arch frame, comprising a support base 1, the support base 1 is arranged in an inverted U shape, and a fixing box 2 fixedly arranged on the support base 1, and the four groups of fixing boxes 2 are provided with openings on the side walls, and also include a lifting mechanism 3, the lifting mechanism 3 is arranged on the fixing box 2, and also include a security mechanism 4, the security mechanism 4 is arranged on the support base 1, and also include a lifting mechanism 5 and a displacement mechanism 6, the lifting mechanism 5 and the displacement mechanism 6 are both arranged on the lifting mechanism 3.

[0025] like Figure 2 As shown, the lifting mechanism 3 includes a threaded rod 7 rotatably connected between the top wall and the bottom wall of the fixed box 2, and a driving motor 8 is fixed to the top wall of the fixed box 2 for driving the threaded rod 7 to rotate. The other three groups of guide rods 9 are fixed between the top wall and the bottom wall of the fixed box 2, and a nut plate 10 is threadedly connected to the threaded rod 7, and a nut plate 10 is penetrated by the guide rod 9 and is slidably connected to it.

[0026] like Figure 3 、 4 As shown, the security mechanism 4 includes a rotating motor 11 fixedly connected to the bottom of a nut plate 10, the output end of the rotating motor 11 is connected to a security box 12, and a connecting column 13 slidably connected to the nut plate 10 is relatively fixed to the bottom of the security box 12. A support sleeve 14 is fixed to the bottom of the security box 12, and a fixing rod 15 is threadedly sleeved on the support sleeve 14. A baffle is fixed to the top of the fixing rod 15, and a safety strap 16 is slidably sleeved on the fixing rod 15.

[0027] like Figure 4 As shown, the lifting mechanism 5 includes a lifting hydraulic rod 17 fixedly connected to a nut plate 10, the telescopic end of the lifting hydraulic rod 17 is connected to a lifting plate 18, the lifting hydraulic rod 17 is symmetrically arranged at both ends of the lifting plate 18, and the fixed end of the lifting hydraulic rod 17 is penetrated by a connecting plate 19 fixed thereto, and a receiving box 20 is fixed on the connecting plate 19, and the receiving box 20 is arranged in an inverted trapezoidal shape.

[0028] like Figure 4 As shown, the displacement mechanism 6 includes a movable plate 21 fixedly connected to the support seat 1, and the movable plate 21 is symmetrically arranged at both ends of the support seat 1. A screw rod 22 is threadedly connected to the movable plate 21, and a base 23 is rotatably connected to the screw rod 22. The base 23 is U-shaped, and a displacement motor 24 for driving the screw rod 22 to rotate is fixed on one side wall of the base 23. A limiting rod 25 that slides through the other end of the movable plate 21 is fixed at the other end of the base 23. A roller 26 is rotatably provided at the bottom of the support seat 1, and a limiting bar that is rollingly connected to the roller 26 is fixed on the bottom wall of the base 23.

[0029] When in use, the construction worker enters the security box 12 and puts on the safety strap 16, puts the other end of the safety strap 16 on the fixed rod 15, and then screws the fixed rod 15 on the support sleeve 14. The other end of the safety strap 16 can slide on the fixed rod 15, so that the construction worker can move flexibly in the security box 12. Turn on the drive motor 8 to make it rotate forward to drive the threaded rod 7 to rotate forward, and the nut plate 10 will rise along each group of guide rods 9, so as to drive the security box 12 and the construction worker to rise. Turn on the displacement motor 24 drives the screw rod 22 to rotate, and the two sets of movable plates 21 then translate along the limit rod 25, and the roller 26 rolls along the limit bar to facilitate the adjustment of the position of the construction workers. Turning on the rotating motor 11 can drive the security box 12 to rotate, so as to facilitate the adjustment of the construction direction of the construction workers, and the arch rib is placed above the jacking plate 18. Turning on the two sets of lifting hydraulic rods 17 to extend the arch rib can lift the arch rib for easy assembly construction. The receiving box 20 can receive the arch rib to prevent it from falling accidentally. The above is the entire use process of the temporary bracket for high-altitude assembly of cast-in-place arch ribs of large-span steel arch frame.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0032] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame, comprising a support base and a fixing box fixedly arranged on the support base, characterized in that: It also includes a lifting mechanism, which is arranged on the fixed box, a security mechanism, which is arranged on the support seat, a lifting mechanism and a displacement mechanism, which are both arranged on the lifting mechanism.

2. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 1, characterized in that: The lifting mechanism includes a threaded rod rotatably connected between the top wall and the bottom wall of the fixed box, the top wall of the fixed box is fixedly provided with a driving motor for driving the threaded rod to rotate, and three other groups of guide rods are fixed between the top wall and the bottom wall of the fixed box, the threaded rod is threadedly connected to a nut plate, and the guide rod is penetrated by a nut plate slidably connected to it.

3. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 2, characterized in that: The security mechanism includes a rotating motor fixedly connected to the bottom with a nut plate, the output end of the rotating motor is connected to a security box, the bottom of the security box is relatively fixed with a connecting column that is slidably connected to the nut plate, and a supporting sleeve is fixed to the bottom of the security box, a fixing rod is threadedly sleeved on the supporting sleeve, and a safety strap is slidably sleeved on the fixing rod.

4. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 3, characterized in that: The lifting mechanism includes a lifting hydraulic rod fixedly connected with a nut plate, the telescopic end of the lifting hydraulic rod is connected to a lifting plate, the fixed end of the lifting hydraulic rod is penetrated by a connecting plate fixed thereto, and a receiving box is fixed on the connecting plate.

5. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 4, characterized in that: The displacement mechanism includes a movable plate fixedly connected to the support seat, a screw rod is threadedly connected to the movable plate, a base is rotatably connected to the screw rod, a displacement motor that drives the screw rod to rotate is fixedly provided on one side wall of the base, a limiting rod that slides through the other end of the movable plate is fixedly provided at the other end of the base, and a roller is rotatably provided at the bottom of the support seat.

6. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 5, characterized in that: The side walls of the four groups of fixed boxes are all provided with openings, a baffle is fixedly provided on the top of the fixed rod, and a limiting strip rotatably connected to the roller is fixedly provided on the bottom wall of the base.

7. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 6, characterized in that: The lifting hydraulic rods are symmetrically arranged at both ends of the lifting plate, and the moving plate is symmetrically arranged at both ends of the supporting seat.

8. A temporary support for high-altitude assembly of cast-in-situ arch ribs of a large-span steel arch frame according to claim 7, characterized in that: The support seat is arranged in an inverted U shape, the receiving box is arranged in an inverted trapezoidal shape, and the base is arranged in a U shape.

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