Reinforcing cage segment straight thread connection implementation device

Abstract

This invention relates to the field of building construction technology, and discloses a device for implementing straight threaded connection of rebar cage segments, comprising: a working box, configured as a cylindrical structure, with multiple circumferentially extending wrench working holes on the peripheral wall of the working box; a top cover plate, configured as an annular structure coaxial with the working box, the top cover plate being rotatably connected to the top of the working box around a vertical axis; and multiple screw wrenches, correspondingly and movably inserted through the wrench working holes, with one end of the screw wrench having a wrench head extending into the working box, the top cover plate being connected to all the screw wrenches, the top cover plate being able to drive each screw wrench to rotate around a vertical axis, and the screw wrenches being able to switch between a clamping state and a disengaged state of the rebar cage. The rebar cage segment straight threaded connection implementation device provided by this invention can improve construction efficiency, ensure connection quality, allow for overall and rapid adjustment of the rebar cage connection, and the working space is not restricted by the rebar cage itself.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a device for implementing straight threaded connection of steel cage segments. Background Technology

[0002] With the rapid development of the construction industry, the quality and technical level of construction are constantly improving. With the diversification of bored pile drilling machinery and the advent of high-power drilling equipment, bored pile foundations and bored pile supports account for an increasingly larger proportion of construction projects, and the length of bored piles is also getting longer and longer. Therefore, straight steel bars connected by straight threads are widely used.

[0003] In the process of connecting rebar sleeves, the rebar threads and sleeves are usually tightened using pipe wrenches or rebar wrenches. One rebar is first fixed, the sleeve is screwed on, and then the other corresponding rebar is screwed into the sleeve. This connection process is cumbersome and the torque after connection is insufficient. Especially when the rebar cage is not long enough and needs to be hoisted and connected in sections, after adjusting the connection angle, the vertical main bars of the rebar cage in each section are already fixed. The spacing between the main bars is small, and the use of heavy-duty tools such as rebar wrenches and pipe wrenches for connecting rebar cage sleeves is limited by space constraints. Connecting large-diameter rebar threads requires significant force, making the connection process time-consuming and labor-intensive. The torque test after connection does not meet standards, and many threads are exposed. A large number of connections are required, resulting in low connection efficiency and unsatisfactory connection quality.

[0004] Therefore, there is an urgent need for a device for implementing straight threaded connection of steel cage segments to solve the above-mentioned technical problems. Summary of the Invention

[0005] Based on the above, the purpose of this invention is to provide a device for implementing straight thread connection of rebar cage segments, which improves construction efficiency, ensures connection quality, allows for overall and rapid adjustment of the rebar cage connection, and the working space is not restricted by the rebar cage itself.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for implementing straight threaded connection of reinforcing cage segments is provided, including:

[0008] The working box is configured as a cylindrical structure, and the peripheral wall of the working box is provided with multiple wrench working holes extending in the circumferential direction;

[0009] The upper cover plate is configured as a ring-shaped structure coaxial with the work box, and the upper cover plate is rotatably connected to the top of the work box about a vertical axis; and

[0010] Multiple screwdrivers are movably inserted through the working holes of the screwdrivers, one by one. The end of each screwdriver with a wrench head extends into the working box. The upper cover plate is connected to all the screwdrivers. The upper cover plate can drive each screwdriver to rotate around a vertical axis. The screwdrivers can switch between a clamping state for holding the steel cage and a disengaged state for detaching from the steel cage.

[0011] As an optional technical solution for the straight thread connection implementation device of the rebar cage stage, the screw wrench includes a wrench part with the wrench mouth and a connecting part. The wrench part and the connecting part are rotatably connected around a horizontal axis. The straight thread connection implementation device of the rebar cage segment also includes a plurality of connecting flexible members that are arranged one-to-one with the screw wrench. The upper end of the connecting flexible member is movably connected to the upper cover plate, and the lower end of the connecting flexible member is connected to the corresponding wrench part. The connecting flexible member can move upward to drive the wrench part to rotate upward.

[0012] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, the upper cover plate is provided with a plurality of circumferentially distributed fixing rods and a plurality of clearance through holes for the connecting flexible member to pass through. The fixing rods are connected to at least one of the connecting flexible members to fix the connecting flexible member.

[0013] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, each of the fixed rods is connected to six of the connecting flexible members.

[0014] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, the connecting flexible component is a steel wire rope.

[0015] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, it also includes a plurality of fixed screws that are arranged one-to-one with the screw wrench. The fixed screws are arranged in a vertical direction, the lower end of the fixed screw is rotatably connected to the end of the screw wrench away from the wrench opening, and the upper end of the fixed screw is connected to the upper cover plate.

[0016] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, each fixing screw is threaded with an adjusting nut. The fixing screw passes through the mounting hole on the upper cover plate, and the adjusting nut presses against the upper surface of the upper cover plate from above to limit the upper end of the fixing screw to the upper cover plate.

[0017] As an optional technical solution for the straight thread connection implementation device of the rebar cage stage, the upper cover plate is also provided with an auxiliary fixing mechanism. The auxiliary fixing mechanism includes a fixing frame and a rebar cage auxiliary steel ring. Multiple fixing frames are provided and are spaced apart along the circumference of the upper cover plate. The rebar cage auxiliary steel ring is connected to the fixing frame and is coaxially arranged with the upper cover plate. The rebar cage auxiliary steel ring is used to limit the horizontal position of the rebar cage inserted therein.

[0018] As an optional technical solution for the straight thread connection implementation device of the rebar cage stage, the auxiliary fixing mechanism further includes a first reinforcing steel ring, which is fixedly connected to the fixing frame and is wrapped around the periphery of the auxiliary steel ring of the rebar cage.

[0019] As an optional technical solution for the straight thread connection implementation device in the rebar cage stage, the upper cover plate is provided with a rotating handle, which extends radially out of the upper cover plate.

[0020] The beneficial effects of this invention are as follows:

[0021] During construction, the work box and top cover plate are fitted around the outer perimeter of the reinforcing cage. The device for connecting the straight threaded sections of the reinforcing cage is equipped with multiple wrenches. In the clamped state, the wrenches can be connected to the corresponding straight threaded sleeves in the reinforcing cage. After connection, the operator rotates the top cover plate around the vertical axis to drive the multiple wrenches to simultaneously tighten their connecting straight threaded sleeves. After tightening to a certain angle, the wrenches are switched to the disengaged state from the straight threaded sleeves, and then the top cover plate is rotated in the opposite direction to drive the wrenches back to the initial position. Then the wrenches are switched back to the clamped state, and the top cover plate is rotated again. This cycle is repeated to achieve the purpose of tightening multiple straight threaded sleeves to the reinforcing bars. Firstly, it improves construction efficiency, ensures the consistency of all straight threaded sleeve connections, and guarantees connection quality. Secondly, it allows for overall and rapid adjustment of the connection angle of the reinforcing cage. Thirdly, it allows for direct operation by rotating the wrenches through the top cover plate, and the working space is not restricted by the reinforcing cage itself. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is a front view of the device for implementing the straight thread connection of steel cage segments provided by the present invention (excluding the knob wrench and fixing screw);

[0024] Figure 2 This is a half-sectional schematic diagram of the implementation device for straight thread connection of steel cage segments provided by the present invention;

[0025] Figure 3 This is a front view of the knob wrench, fixing screw, and connecting flexible member provided by the present invention;

[0026] Figure 4 This is a top view of the knob wrench, fixing screw, and connecting flexible component provided by the present invention;

[0027] Figure 5 This is a top view of the upper cover plate and auxiliary fixing mechanism provided by the present invention;

[0028] Figure 6 This is a bottom view of the top cover plate provided by the present invention.

[0029] In the picture:

[0030] 1. Working box; 11. Wrench working hole; 2. Top cover plate; 21. Mounting hole; 22. Clearance through hole; 23. Fixing rod; 24. Annular groove; 3. Tightening wrench; 31. Wrench part; 311. Wrench mouth; 32. Connecting part; 4. Fixing screw; 41. Adjusting nut; 5. Connecting flexible part; 6. Auxiliary fixing mechanism; 61. Fixing frame; 62. Reinforcing cage auxiliary steel ring; 63. First reinforcing steel ring; 7. Bottom support; 71. Support leg; 72. Second reinforcing steel ring; 10. Rotating handle. Detailed Implementation

[0031] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This embodiment provides a device for implementing straight threaded connection of reinforcing cage segments, used to tighten the reinforcing bars constituting the reinforcing cage and the straight threaded sleeve, and is particularly suitable for connecting the reinforcing cage of bored piles. Figures 1-6As shown, the rebar cage segment straight thread connection implementation device includes a bottom support 7, a working box 1, an upper cover plate 2, and multiple screw wrenches 3. The bottom support 7 is installed at the bottom of the working box 1 so that the rebar cage segment straight thread connection implementation device can be placed on the drilling rig working platform. The working box 1 is a cylindrical structure with multiple circumferentially extending wrench working holes 11 on its peripheral wall. The upper cover plate 2 is a ring structure coaxial with the working box 1 and is rotatably connected to the top of the working box 1 around a vertical axis. Multiple screw wrenches 3 are movably inserted through the wrench working holes 11 in a corresponding manner. One end of the screw wrench 3 with a wrench mouth 311 extends into the working box 1. The upper cover plate 2 is connected to all the screw wrenches 3. The upper cover plate 2 can drive each screw wrench 3 to rotate around a vertical axis. The screw wrenches 3 can switch between the clamping state of holding the rebar cage and the detached state of disengaging from the rebar cage.

[0033] Specifically, during construction, the rebar cage segment straight thread connection implementation device is positioned aligned with the drill hole. The rebar cage is passed through the central through hole of the working box 1 and the upper cover plate 2, so that the working box 1 and the upper cover plate 2 are fitted onto the outer periphery of the rebar cage. The rebar cage segment straight thread connection implementation device is equipped with multiple tightening wrenches 3. In the clamping state, the wrench jaws 311 of the tightening wrenches 3 can be connected to the corresponding straight thread sleeves in the rebar cage. After connection, the operator rotates the upper cover plate 2 around the vertical axis to drive the multiple wrenches to simultaneously tighten their connecting straight thread sleeves. After tightening to a certain angle, the tightening wrenches 3 are switched. The upper cover plate 2 is rotated in the opposite direction to disengage from the straight threaded sleeve, thereby driving the wrench 3 back to its initial position. Then, the wrench 3 is switched back to the clamping position, and the upper cover plate 2 is rotated again. This process is repeated to tighten multiple straight threaded sleeves to the reinforcing bars. Firstly, this improves construction efficiency, ensures the consistency of all straight threaded sleeve connections, and guarantees connection quality. Secondly, it allows for overall and rapid adjustment of the connection angle of the reinforcing cage. Thirdly, it allows for direct operation by rotating the wrench 3 via the upper cover plate 2, without the working space being restricted by the reinforcing cage itself.

[0034] Optionally, the screw wrench 3 includes a wrench part 31 with a wrench mouth 311 and a connecting part 32. The wrench part 31 and the connecting part 32 are rotatably connected around a horizontal axis. The straight thread connection device for the steel cage segment also includes multiple connecting flexible members 5 that are arranged one-to-one with the screw wrench 3. The upper end of the connecting flexible member 5 is movably connected to the upper cover plate 2, and the lower end of the connecting flexible member 5 is connected to the corresponding wrench part 31. The connecting flexible member 5 can move upward to drive the wrench part 31 to rotate upward, thereby disengaging the screw wrench 3 from the straight thread sleeve and switching it from the clamping state to the disengaged state. The connecting flexible member 5 can also move downward to allow the wrench part 31 to rotate downward under the action of gravity, thereby allowing the wrench mouth 311 of the screw wrench 3 to clamp the straight thread sleeve and switch it from the disengaged state to the clamping state.

[0035] Preferably, the connecting flexible element 5 is made of steel wire rope. In other embodiments, the connecting flexible element 5 may also be made of other flexible elements such as chains, depending on the actual working conditions.

[0036] Furthermore, the upper cover plate 2 is provided with multiple circumferentially distributed fixing rods 23 and multiple clearance holes 22 for the connecting flexible member 5 to pass through. The fixing rods 23 are connected to the upper end of at least one connecting flexible member 5 to fix the connecting flexible member 5. Specifically, the wrench part 31 and the connecting part 32 are rotatably connected by a hinge. When the wrench part 31 is rotated downwards to a position where the wrench part 31 and the connecting part 32 are parallel and both are on the horizontal plane, the connection position between the connecting flexible member 5 and the fixing rod 23 is adjusted so that the connecting flexible member 5 is in a tensioned state. Since the fixing rod 23 is connected to the upper end of the connecting flexible member 5, the connecting flexible member 5 is prevented from falling off, and the operator can directly pull the connecting flexible member 5 from above to switch the state of the tightening wrench 3.

[0037] Optionally, each fixed rod 23 is connected to six different flexible connecting parts 5. The operator can pull the six flexible connecting parts 5 simultaneously near the fixed rod 23 to switch the corresponding six screw wrenches 3 to the loose state.

[0038] Optionally, the rebar cage segment straight thread connection implementation device also includes multiple fixing screws 4, each corresponding to a screw wrench 3. The screw wrench 3 is connected to the upper cover plate 2 via the fixing screws 4. Specifically, the fixing screws 4 are arranged vertically, with the lower end of the fixing screw 4 rotatably connected to the end of the screw wrench 3 away from the wrench opening 311, and the upper end of the fixing screw 4 connected to the upper cover plate 2.

[0039] Furthermore, the height of the wrench working hole 11 is greater than the thickness of the tightening wrench 3. Each fixing screw 4 is threaded with an adjusting nut 41. The fixing screw 4 passes through the mounting hole 21 on the upper cover plate 2. The adjusting nut 41 presses against the upper surface of the upper cover plate 2 from above to limit the upper end of the fixing screw 4 to the upper cover plate 2. The operator can adjust the installation height of the fixing screw 4 by changing the connection position between the adjusting nut 41 and the fixing screw 4, thereby adjusting the height of the tightening wrench 3 and achieving flexible adjustment of the working height.

[0040] Preferably, the wrench working holes 11 are distributed at at least two heights on the work box 1. In this embodiment, the wrench working holes 11 are distributed at two heights on the work box 1, and the wrench working holes 11 at both heights are evenly spaced along the periphery of the work box 1, with the wrench working holes 11 at different heights spaced apart. The distribution of the wrench working holes 11 allows adjacent tightening wrenches 3 to be staggered in height to obtain a larger working space and improve space utilization. On the other hand, it also allows for the simultaneous tightening of straight threaded sleeves at different heights.

[0041] Preferably, the upper cover plate 2 is also provided with an auxiliary fixing mechanism 6. The auxiliary fixing mechanism 6 includes a fixing frame 61 and a reinforcing cage auxiliary steel ring 62. The fixing frame 61 is provided in multiples and is arranged at intervals along the circumference of the upper cover plate 2. The reinforcing cage auxiliary steel ring 62 is connected to the fixing frame 61 and is coaxially arranged with the upper cover plate 2. The reinforcing cage auxiliary steel ring 62 is used to limit the horizontal position of the reinforcing cage inserted therein.

[0042] Furthermore, the auxiliary fixing mechanism 6 also includes a first reinforcing steel ring 63, which is fixedly connected to the fixing frame 61 and is arranged around the periphery of the auxiliary steel ring 62 of the reinforcing cage.

[0043] Preferably, the bottom of the upper cover plate 2 is provided with an annular groove 24, which is adapted to the peripheral wall of the working box 1. The upper end of the peripheral wall of the working box 1 is embedded in the annular groove 24 to limit the installation position between the upper cover plate 2 and the working box 1.

[0044] Preferably, the bottom support 7 is provided with a second reinforcing steel ring 72, which is connected to the four legs on the bottom support 7 to enhance the strength of the bottom support 7.

[0045] Preferably, the upper cover plate 2 is provided with a rotating handle 10, which extends radially out of the upper cover plate 2 so that the operator can rotate the upper cover plate 2 around the vertical axis by rotating the handle 10. In this embodiment, there are four rotating handles 10 arranged in a cross shape.

[0046] Preferably, the bottom support 7, the working box 1, the upper cover plate 2, the auxiliary fixing mechanism 6 and the rotating handle 10 are all made of square steel and / or steel plate, and the thickness of the steel plate is preferably 10mm.

[0047] The operation method of the rebar cage segment straight thread connection implementation device provided in this embodiment is as follows:

[0048] S1. Before the reinforcement cage is lowered into the bored pile, install the main body of the reinforcement cage segment straight thread connection implementation device on the operating platform and place it in a position aligned with the borehole.

[0049] S2. The steel cage is lowered through the straight thread connection device of the steel cage segment, so that the steel cage enters the borehole. After placing the supporting square timber, the lifting rope is released.

[0050] S3. Install the screw wrench 3 and align it with the straight threaded sleeve;

[0051] S4. Hoist the second section of the reinforcing cage and thread the threads in opposite directions at the joint between the two reinforcing cages. Use the reinforcing cage auxiliary steel ring 62 to correct the horizontal position of the second section of the reinforcing cage.

[0052] S5. Rotate the upper cover plate 2 to drive the screw wrench 3 to rotate the straight threaded sleeve;

[0053] S6. Lift the connecting flexible member 5, lift the wrench part 31 of the screw wrench 3 upward, so that the wrench mouth 311 leaves the straight thread sleeve, and fix the other node of the upper end of the connecting flexible member 5 to the fixing rod 23 to tension the connecting flexible member 5. Then rotate the upper cover plate 2 in the opposite direction to adjust the upper cover plate 2 back to its original position.

[0054] S7. Release the fixing of the other node at the upper end of the flexible component 5, so that the wrench part 31 can re-clamp the straight threaded sleeve;

[0055] S8. Repeat steps S5-S7 until the straight threaded sleeve is tightened to the required degree.

[0056] S9. If there are subsequent segmental steel cage installations, repeat steps S4-S8 until all steel cages are connected and lowered to the bottom. Then, support the steel cages with supporting timber, untie the hoisting ropes, remove the steel cage segmental straight thread connection device, and transfer it to the next work site for continued use.

[0057] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A device for implementing straight thread connection of reinforcing cage segments, characterized in that, include: The work box (1) is configured as a cylindrical structure, and the peripheral wall of the work box (1) is provided with a plurality of wrench working holes (11) extending in the circumferential direction; The upper cover plate (2) is configured as an annular structure coaxial with the work box (1), and the upper cover plate (2) is rotatably connected to the top of the work box (1) about the vertical axis; as well as Multiple screw wrenches (3) are movably inserted through the working holes (11) of the wrenches in a corresponding manner. One end of each screw wrench (3) with a wrench head (311) extends into the working box (1). The upper cover plate (2) is connected to all the screw wrenches (3). The upper cover plate (2) can drive each screw wrench (3) to rotate around the vertical axis. The screw wrench (3) can switch between the clamping state of the steel cage and the detached state of the steel cage. Bottom support (7), which is installed at the bottom of the work box (1).

2. The device for implementing straight threaded connection of steel cage segments according to claim 1, characterized in that, The screw wrench (3) includes a wrench part (31) with the wrench mouth (311) and a connecting part (32). The wrench part (31) and the connecting part (32) are rotatably connected around a horizontal axis. The straight thread connection device for the steel cage segment also includes a plurality of connecting flexible members (5) that are arranged one-to-one with the screw wrench (3). The upper end of the connecting flexible member (5) is movably connected to the upper cover plate (2), and the lower end of the connecting flexible member (5) is connected to the corresponding wrench part (31). The connecting flexible member (5) can move upward to drive the wrench part (31) to rotate upward.

3. The device for implementing straight thread connection of reinforcing cage segments according to claim 2, characterized in that, The upper cover plate (2) is provided with a plurality of circumferentially distributed fixing rods (23) and a plurality of clearance through holes (22) for the connecting flexible member (5) to pass through. The fixing rods (23) are connected to at least one of the connecting flexible members (5) to fix the connecting flexible member (5).

4. The device for implementing straight thread connection of reinforcing cage segments according to claim 3, characterized in that, Each of the fixed rods (23) is connected to one of the six connecting flexible members (5).

5. The device for implementing straight thread connection of reinforcing cage segments according to claim 2, characterized in that, The connecting flexible element (5) is made of steel wire rope.

6. The device for implementing straight threaded connection of reinforcing cage segments according to claim 1, characterized in that, It also includes a plurality of fixing screws (4) that are arranged one-to-one with the screw wrench (3). The fixing screws (4) are arranged in a vertical direction. The lower end of the fixing screws (4) is rotatably connected to the end of the screw wrench (3) away from the wrench mouth (311). The upper end of the fixing screws (4) is connected to the upper cover plate (2).

7. The device for implementing straight threaded connection of reinforcing cage segments according to claim 6, characterized in that, Each fixing screw (4) is threaded with an adjusting nut (41). The fixing screw (4) passes through the mounting hole (21) on the upper cover plate (2). The adjusting nut (41) presses against the upper surface of the upper cover plate (2) from above to limit the upper end of the fixing screw (4) to the upper cover plate (2).

8. The device for implementing straight thread connection of reinforcing cage segments according to any one of claims 1-7, characterized in that, The upper cover plate (2) is also provided with an auxiliary fixing mechanism (6). The auxiliary fixing mechanism (6) includes a fixing frame (61) and a reinforcing cage auxiliary steel ring (62). The fixing frame (61) is provided in multiple ways and is spaced apart along the circumference of the upper cover plate (2). The reinforcing cage auxiliary steel ring (62) is connected to the fixing frame (61) and is coaxially arranged with the upper cover plate (2). The reinforcing cage auxiliary steel ring (62) is used to limit the horizontal position of the reinforcing cage inserted therein.

9. The device for implementing straight thread connection of reinforcing cage segments according to claim 8, characterized in that, The auxiliary fixing mechanism (6) further includes a first reinforcing steel ring (63), which is fixedly connected to the fixing frame (61) and is arranged around the periphery of the auxiliary steel ring (62) of the reinforcing cage.

10. The apparatus for implementing straight thread connection of reinforcing cage segments according to any one of claims 1-7, characterized in that, The upper cover plate (2) is provided with a rotating handle (10), which extends radially out of the upper cover plate (2).

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