Cofferdam or open caisson assembly type steel blade foot adjustable pre-splicing jig frame

Abstract

The utility model discloses a cofferdam or open caisson assembly type steel blade foot adjustable pre-splicing jig frame which comprises bottom rods, inclined rods and vertical rods. An adjusting lead screw used for adjusting the distance is further connected between the inclined rod and the vertical rod, so that after the adjusting lead screw is adjusted, the slope of the inclined rod relative to the bottom rod can be changed. The straight tread adjusting rod is movably close to or far away from the inclined rod through a bolt and nut assembly and is vertically connected to one end of the bottom rod; the first connecting system and the second connecting system are respectively arranged in the vertical rod and the straight tread adjusting rod. The adjustable pre-splicing jig frame has the advantages that the width of a straight tread of a steel blade foot can be adjusted, and the angle of an inclined tread of the steel blade foot can be adjusted; the method is suitable for pre-splicing of rectangular or round open caisson or cofferdam steel blade feet, and the applicability is high; and meanwhile, the jig frame is fast to assemble and disassemble, welding is not needed, and a stable jig frame system can be formed only by padding. And a special jig frame does not need to be welded for steel blade feet with different forms each time.

Description

Technical Field

[0001] The utility model relates to the technical field of steel blade foot assembly tools, and particularly relates to an adjustable pre-assembly jig for assembled steel blade feet of cofferdams or caissons. Background Art

[0002] The steel blade feet of caissons or double-wall cofferdams are generally triangular or trapezoidal. After being manufactured in the factory and pre-assembled qualified, they are transported to the construction site for assembly. A pre-assembly jig needs to be set up during pre-assembly. Under different geological conditions, the width values of the straight tread surfaces of the steel blade feet are different, and the angles of the inclined tread surfaces change accordingly. An assembled steel blade foot pre-assembly jig with adjustable straight tread surface width and adjustable inclined tread surface angle is required, which avoids welding special jigs for each different form of steel blade foot every time. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable pre-assembly jig for assembled steel blade feet of cofferdams or caissons according to the deficiencies of the above-mentioned prior art, so that it is not necessary to weld special jigs for each different form of steel blade foot every time by adopting this adjustable pre-assembly jig.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] An adjustable pre-assembly jig for assembled steel blade feet of cofferdams or caissons, which includes:

[0006] A bottom rod;

[0007] An inclined rod, one end of which is rotatably connected to the bottom rod;

[0008] A vertical rod, one end of which is rotatably connected to the bottom rod, and the other end of which is rotatably connected to the inclined rod; where

[0009] An adjusting screw rod for adjusting the distance is also connected between the inclined rod and the vertical rod, so that after adjusting the adjusting screw rod, the slope of the inclined rod relative to the bottom rod can change;

[0010] A straight tread surface adjusting rod, which is vertically connected to one end of the bottom rod through a bolt and nut assembly and can move close to or away from the inclined rod; and

[0011] A first connecting system and a second connecting system respectively arranged in the vertical rod and the straight tread surface adjusting rod.

[0012] Optionally, the inclined rod is rotatably connected to the bottom rod through a first pin shaft, and the inclined rod and the bottom rod are both provided with first pin shaft holes for the first pin shaft to pass through.

[0013] Optionally, the vertical rod is rotatably connected to the bottom rod through a second pin shaft, and the vertical rod and the bottom rod are both provided with second pin shaft holes for the second pin shaft to pass through.

[0014] Optionally, the straight tread adjusting rod is detachably connected to the bottom rod through the bolt and nut assembly, and both the straight tread adjusting rod and the bottom rod are provided with bolt holes for the bolt and nut assembly to pass through.

[0015] Optionally, rollers are symmetrically installed on both sides of the straight tread adjusting rod. The rollers contact the top of the bottom rod and are used for the straight tread adjusting rod to roll and move on the top of the bottom rod when the straight tread adjusting rod is separated from the bottom rod.

[0016] Optionally, there are two bolt and nut assemblies in a group, and the straight tread adjusting rod and the bottom rod are connected in a vertically distributed manner. There are two bolt holes in a group and the positions correspond to the two bolt and nut assemblies.

[0017] Optionally, multiple groups of bolt holes are evenly arranged in the horizontal direction on the bottom rod.

[0018] Optionally, one end of the adjusting screw rod is fixed to the vertical rod, and the other end is rotatably connected to the inclined rod through a third pin shaft.

[0019] Optionally, the bottom rod includes two C-shaped steels arranged back to back. The distance between the two C-shaped steels is equal to or slightly larger than the widths of the straight tread adjusting rod, the inclined rod and the vertical rod. The two C-shaped steels are fixed by welding connecting steel plates at positions not connected to the straight tread adjusting rod, the inclined rod and the vertical rod.

[0020] Optionally, adjacent adjustable pre-assembled tire racks are connected through corresponding first connection systems and second connection systems to form a circular, square or other surrounding shapes.

[0021] The advantages of the present utility model are:

[0022] The adjustable pre-assembled tire rack of the present utility model can realize adjustable straight tread width and adjustable inclined tread angle of the steel blade foot; and is applicable to pre-assembly of rectangular or circular caisson or cofferdam steel blade feet, with strong applicability; at the same time, it can be quickly installed and disassembled, without welding, only need to copy and pad to form a stable tire rack system. There is no need to weld special tire racks for steel blade feet with different forms every time. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the adjustable pre-assembled tire rack of the present utility model;

[0024] Figure 2 is Figure 1 the enlarged view of part A in

[0025] Figure 3 is Figure 1 the enlarged view of part B in

[0026] Figure 4 is Figure 1 a sectional view at the C-C position in

[0027] Figure 5 an assembly schematic diagram of the adjustable pre-assembled tire rack and the steel blade foot of the present utility model;

[0028] Figure 6 a structural schematic diagram of the steel blade foot of the present utility model;

[0029] Figure 7 a change schematic diagram of the adjustable pre-assembled tire rack of the present utility model for adjusting the angle of the inclined tread surface of the steel blade foot;

[0030] Figure 8 a change schematic diagram of the adjustable pre-assembled tire rack of the present utility model for adjusting the width of the straight tread surface of the steel blade foot;

[0031] Figure 9 a state schematic diagram of multiple adjustable pre-assembled tire racks of the present utility model surrounding and combining. Specific embodiments

[0032] Each mark in the figure is respectively: 1, bottom rod; 2, inclined rod; 3, vertical rod; 4, straight tread surface adjusting rod; 5, adjusting screw rod; 10, first pin shaft; 11, connecting steel plate; 12, bolt hole; 20, second pin shaft; 30, third pin shaft; 31, first connecting system; 40, bolt and nut assembly; 41, second connecting system; 42, roller; 50, shim; 100, adjustable pre-assembled tire rack; 101, C-shaped steel; 200, steel blade foot; 421, roller shaft.

[0033] Example: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 as shown, which shows an adjustable pre-assembled tire rack for a cofferdam or caisson assembled steel blade foot in an embodiment. Among them, it includes a bottom rod 1; an inclined rod 2, one end of which is rotatably connected to the bottom rod 1; a vertical rod 3, one end of which is rotatably connected to the bottom rod 1, and the other end of which is rotatably connected to the inclined rod 2; and an adjusting screw rod 5 for adjusting the distance is also connected between the inclined rod 2 and the vertical rod 3, so that after adjusting the adjusting screw rod 5, the slope of the inclined rod 2 relative to the bottom rod 1 can change; a straight tread surface adjusting rod 4, which is vertically connected to one end of the bottom rod 1 through a bolt and nut assembly and can move close to or away from the inclined rod 2; and a first connecting system 31 and a second connecting system 41 respectively arranged in the vertical rod 3 and the straight tread surface adjusting rod 4.

[0034] In this embodiment, the inclined rod 2 is rotatably connected to the bottom rod 1 through a first pin shaft 10, and both the inclined rod 2 and the bottom rod 1 are provided with first pin shaft holes (not shown) for the first pin shaft 10 to pass through.

[0035] In this embodiment, the vertical rod 3 is rotatably connected to the bottom rod 1 through the second pin shaft 20. Both the vertical rod 3 and the bottom rod 1 are provided with second pin shaft holes (not shown) for the second pin shaft 20 to pass through.

[0036] In this embodiment, the straight tread adjusting rod 4 is detachably connected to the bottom rod 1 through the bolt and nut assembly 40. Both the straight tread adjusting rod 4 and the bottom rod 1 are provided with bolt holes 12 for the bolt and nut assembly 40 to pass through.

[0037] In this embodiment, rollers 42 are symmetrically installed on both sides of the straight tread adjusting rod 4. The rollers 42 contact the top of the bottom rod 1 and are used for the straight tread adjusting rod 4 to roll and move on the top of the bottom rod 1 when the straight tread adjusting rod 4 is separated from the bottom rod 1.

[0038] In this embodiment, the bolt and nut assembly 40 is a set of two, and the straight tread adjusting rod 4 and the bottom rod 1 are connected in a vertically distributed manner. The bolt holes 12 are a set of two and the positions correspond to the two bolt and nut assemblies 40.

[0039] In this embodiment, multiple groups of bolt holes 12 are evenly arranged on the bottom rod 1 in the horizontal direction.

[0040] In this embodiment, one end of the adjusting screw rod 5 is fixed to the vertical rod 3, and the other end is rotatably connected to the inclined rod 2 through the third pin shaft 30.

[0041] In this embodiment, the bottom rod 1 includes two C-shaped steels 101 arranged back to back. The distance between the two C-shaped steels 101 is equal to or slightly greater than the widths of the straight tread adjusting rod 4, the inclined rod 2, and the vertical rod 3. The two C-shaped steels 101 are fixed by welding connecting steel plates 11 at positions where they are not connected to the straight tread adjusting rod 4, the inclined rod 2, and the vertical rod 3.

[0042] In this embodiment, as Figure 9 shown, adjacent adjustable pre-assembled tire racks 100 are connected through corresponding first connection systems 31 and second connection systems 41 to form a circular, square, or other surrounding shapes.

[0043] The characteristics and functions of the present utility model are further understood through the following description.

[0044] As Figure 5 and Figure 6 shown, after the adjustable pre-assembled tire rack 100 is assembled, the steel blade foot 200 can be placed therein for the assembly of the steel blade foot 200. Among them, the inclined tread of the steel blade foot 200 contacts the inclined rod 2, and the straight tread of the steel blade foot 200 contacts the bottom rod and is located between the inclined rod 2 and the straight tread adjusting rod 4.

[0045] When it is necessary to assemble steel blade feet with different structures, for example, the angle of the inclined tread of the steel blade foot 200 is higher or lower. At this time, refer to Figure 7As shown, simply turn the adjusting screw rod 5 clockwise or counterclockwise to achieve the distance between the inclined rod 2 and the vertical rod. Since the inclined rod 2 and the vertical rod 3 form a stable triangular structure with the bottom rod 1, and the adjusting screw rod 5 is not an elastic structure, adjusting the adjusting screw rod 5 can finely adjust the angle of the inclined tread surface of the steel blade foot 200, that is, increase or decrease the slope angle of the inclined tread surface of the steel blade foot 200.

[0046] When a wider or narrower straight tread surface of the steel blade foot 200 is required, refer to Figure 8 As shown, unscrew the bolt and nut assembly 40, and push the straight tread surface adjusting rod 4 closer to or farther away from the inclined rod. When it moves to the required position, then fix the straight tread surface adjusting rod 4 and the bottom rod 1 through the bolt and nut assembly 40 to obtain a steel blade foot 200 with a wider or narrower straight tread surface.

[0047] In summary, the adjustable pre-assembled tire rack of the present utility model can achieve adjustable width of the straight tread surface and adjustable angle of the inclined tread surface of the steel blade foot; and it is applicable to the pre-assembly of steel blade feet for rectangular or circular caissons or cofferdams, with strong applicability; at the same time, it can be quickly installed and disassembled, without welding, only need to shim, and a stable tire rack system can be formed. There is no need to weld a special tire rack for each steel blade foot with different forms every time.

[0048] The above is only a preferred embodiment of the present utility model, and does not limit the implementation mode and protection scope of the present utility model. For those skilled in the art, it should be able to realize that all equivalent replacements and obvious changes made by using the specification and illustrated content of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An adjustable pre-assembly jig for the fabricated steel cutting edge of a cofferdam or caisson, characterized in that, Comprising: Bottom rod; Diagonal rod, one end of which is rotatably connected to the bottom rod; Vertical rod, one end of which is rotatably connected to the bottom rod and the other end of which is rotatably connected to the diagonal rod; Wherein An adjusting screw rod for adjusting the distance is also connected between the diagonal rod and the vertical rod, so that after adjusting the adjusting screw rod, the slope of the diagonal rod relative to the bottom rod can be changed; A straight tread adjusting rod is vertically connected to one end of the bottom rod through a bolt and nut assembly and can be movably close to or away from the diagonal rod; and A first connecting system and a second connecting system are respectively arranged in the vertical rod and the straight tread adjusting rod.

2. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 1, characterized in that, The diagonal rod is rotatably connected to the bottom rod through a first pin shaft, and the diagonal rod and the bottom rod are both provided with first pin shaft holes for the first pin shaft to pass through.

3. The adjustable pre-assembly jig for the fabricated steel cutting edge of the cofferdam or open caisson according to claim 2, characterized in that, The vertical rod is rotatably connected to the bottom rod through a second pin shaft, and the vertical rod and the bottom rod are both provided with second pin shaft holes for the second pin shaft to pass through.

4. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 3, wherein The straight tread adjusting rod is detachably connected to the bottom rod through the bolt and nut assembly, and the straight tread adjusting rod and the bottom rod are both provided with bolt holes for the bolt and nut assembly to pass through.

5. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 4, wherein Rollers are symmetrically installed on both sides of the straight tread adjusting rod, and the rollers contact the top of the bottom rod and are used for the straight tread adjusting rod to roll and move on the top of the bottom rod when the straight tread adjusting rod is separated from the bottom rod.

6. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 5, characterized in that The bolt and nut assembly is a set of two, and connects the straight tread adjusting rod and the bottom rod in an up-and-down distribution manner, and the bolt holes are a set of two and the positions correspond to the two bolt and nut assemblies.

7. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or open caisson according to claim 6, wherein, Multiple groups of the bolt holes are uniformly arranged on the bottom rod in the horizontal direction.

8. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 7, characterized in that, One end of the adjusting screw rod is fixed to the vertical rod, and the other end is rotatably connected to the diagonal rod through a third pin shaft.

9. The adjustable pre-assembly jig for the fabricated steel cutting edge of cofferdam or caisson according to claim 8, characterized in that, The bottom rod includes two C-shaped steels arranged back to back, and the distance between the two C-shaped steels is equal to or slightly larger than the widths of the straight tread adjusting rod, the diagonal rod and the vertical rod. The two C-shaped steels are fixed by welding connecting steel plates at positions where they are not connected to the straight tread adjusting rod, the diagonal rod and the vertical rod.

10. The pre-assembly jig with adjustable steel cutting edge for cofferdam or caisson according to claim 9, wherein, Adjacent two adjustable pre-assembled tire racks are connected through corresponding first connecting systems and second connecting systems to form a circular, square or other surrounding shape.

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