Reinforcement cage adjusting device

Abstract

The utility model discloses a reinforcement cage adjusting device which comprises a fixed frame, a movable frame and a locking assembly, the movable frame can move up and down along the fixed frame, the fixed frame and the movable frame are connected and locked through the locking assembly, the reinforcement cage adjusting device further comprises two reinforcement clamping devices used for clamping reinforcement, one reinforcement clamping device is connected with the fixed frame, and the other reinforcement clamping device is connected with the movable frame. And the other reinforcing steel bar clamping device is connected with the movable frame, and the clamping parts of the two reinforcing steel bar clamping devices are coaxially arranged. The reinforcement cage adjusting device has the advantages of being capable of adjusting the distance between the upper reinforcement cage and the lower reinforcement cage, convenient to use and capable of being repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cage butt joint, in particular to a steel cage adjusting device. Background Art

[0002] At present, in the construction of bridges, piers, etc., the upper and lower steel cages are usually connected by straight thread sleeves. During the on-site construction process, the lower steel cage is first hoisted to the designated position, and then the upper steel cage is hoisted to align the main bars of the lower steel cage with those of the upper steel cage. Finally, the upper and lower steel cages are connected by straight thread sleeves. On the one hand, the steel cage may be deformed during transportation and hoisting, resulting in deformation of the main bars of the steel cage, uneven end faces of the steel cage, and uneven surfaces of the steel bars when the steel bars are threaded. On the other hand, the steel cage is large in size and heavy in weight. During the hoisting process, the hoisting angle of the steel cage is difficult to control, and the lower steel cage is easy to be uneven. It is difficult to ensure that there is no gap between the main bars of the upper and lower steel cages by installing the steel cage only by hoisting equipment. Generally, more than two manual labor is required to assist in the hoisting construction. The existing technology will cause gaps between the main bars of the upper and lower steel cages, so that the construction quality cannot meet the requirements of the specifications, the labor intensity of the workers is high, and there are hidden dangers in production safety. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a steel cage adjusting device capable of adjusting the distance between upper and lower steel cages.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A steel cage adjustment device comprises a fixed frame, a movable frame and a locking assembly, wherein the movable frame can move up and down along the fixed frame, and the fixed frame and the movable frame are connected and locked by the locking assembly. The device also comprises two steel bar clamps for clamping steel bars, wherein one of the steel bar clamps is connected to the fixed frame, and the other of the steel bar clamps is connected to the movable frame, and the clamping parts of the two steel bar clamps are coaxially arranged.

[0006] As a further improvement of the above technical solution:

[0007] The movable frame includes a first cross beam and a first vertical axis, and the fixed frame includes a second cross beam and a second vertical axis, one end of the first cross beam is fixedly connected to the first vertical axis, and the other end of the first cross beam is provided with a first through hole for accommodating the second vertical axis, one end of the second cross beam is fixedly connected to the second vertical axis, and the other end of the second cross beam is provided with a second through hole for accommodating the first vertical axis, the first vertical axis and the second vertical axis are inserted into the corresponding second through hole and the first through hole, and the locking assembly is used to adjust and lock the first vertical axis and the second cross beam.

[0008] There is a clearance fit between the second vertical axis and the first through hole.

[0009] The diameter of the second vertical axis is 0.5-1 mm smaller than the diameter of the first through hole.

[0010] The locking assembly includes an external thread disposed at one end of the first vertical axis away from the first beam, and two adjusting bolts are threadedly connected to the external thread. The two adjusting bolts are disposed on opposite sides of the second beam and are tightly fitted to the second beam.

[0011] The adjusting bolt comprises a hexagonal portion and a circular portion connected to each other, the outer diameter of the hexagonal portion conforms to the specifications of a general hexagonal bolt, and the circular portion is inserted into the second through hole and is loosely matched with the second through hole.

[0012] One of the steel bar clamps is detachably connected to the fixed frame, and the other steel bar clamp is detachably connected to the movable frame.

[0013] A first connecting plate is provided at one end of the first crossbeam, and a second connecting plate is provided at one end of the second crossbeam, wherein one of the steel bar clamps is connected to the first connecting plate via a connecting bolt, and the other steel bar clamp is connected to the second connecting plate via the connecting bolt.

[0014] The steel bar clamp includes a support plate, a fixed clamp and a movable clamp, the fixed clamp is fixedly connected to the support plate, the movable clamp is hingedly connected to the support plate through a pin shaft, the movable clamp can rotate along the pin shaft and close with the fixed clamp, the movable clamp and the fixed clamp are connected and locked by locking bolts, one of the support plates is connected to the first connecting plate by a connecting bolt, and the other support plate is connected to the second connecting plate by a connecting bolt, and the clamping part includes two semi-cylindrical clamping surfaces arranged on the fixed clamp and the movable clamp.

[0015] The advantages of the utility model are as follows: the steel cage adjustment device of the utility model simplifies the steps of butting the upper and lower steel cages with straight thread sleeves in the construction of bridges, piers, etc. When the connection is made, that is, after the lower steel cage is fixed, the upper steel cage is hoisted and butted with the lower steel cage, the main bars of the upper and lower steel cages are temporarily connected by using the sleeves, and after the first alignment connection of the upper and lower steel cages is completed, more than two steel cage adjustment devices are used in groups to complete the precise butt connection. In the precise butt connection process, the steel clamps on the fixed frames in each steel cage adjustment device and the lower steel bars are fully utilized. The cage reinforcement is butt-connected, and the reinforcement clamps on the movable frame are connected to the reinforcement of the upper reinforcement cage. At this time, the upper and lower reinforcement cages are connected into one through the corresponding reinforcement clamps, forming a rigid connection, so that the weight of the upper reinforcement cage can be transferred to the lower reinforcement cage by the reinforcement cage adjustment device. At this time, the movable frame is used to move downward along the fixed frame to accurately adjust the upper and lower coaxiality and end point distance of each reinforcement of the upper and lower reinforcement cages. Finally, the sleeve on the reinforcement is tightened to complete the connection of the upper and lower reinforcement cages and remove the reinforcement cage adjustment device. The removed reinforcement cage adjustment device is reused in the next working cycle.

[0016] The utility model meets the standard requirements of construction work by first fixing and establishing a rigid connection in the horizontal and vertical directions of the upper and lower steel cages, and then accurately adjusting the distance between the upper and lower steel cages. It can appropriately correct the deformation of the main reinforcement of the steel cage, the uneven end surface of the steel cage, the uneven surface of the steel bars, and other adverse effects, and smoothly dock. It also solves the problems of large size and weight of the steel cage and difficult lifting operation. The utility model can effectively improve the construction quality, is simple to operate, easy to use, quick to install and disassemble, and can be reused, which greatly reduces the labor intensity of workers, shortens construction time, and reduces safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the steel cage adjustment device.

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the steel cage adjustment device.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable frame.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing frame.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure in which the first vertical axis is connected to the adjusting bolt.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjusting bolt.

[0023] Figure 7It is a schematic diagram of the three-dimensional structure of the steel bar clamp.

[0024] Legend:

[0025] 1. Fixed frame; 11. Second crossbeam; 12. Second vertical axis; 13. Second through hole; 14. Second connecting plate; 2. Movable frame; 21. First crossbeam; 22. First vertical axis; 23. First through hole; 24. First connecting plate; 3. Locking assembly; 31. External thread; 32. Adjusting bolt; 321. Hexagonal portion; 322. Circular portion; 4. Rebar clamp; 41. Support plate; 42. Fixed splint; 43. Movable splint; 44. Pin; 45. Locking bolt; 5. Connecting bolt. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 7As shown, the steel cage adjustment device of this embodiment includes a fixed frame 1, a movable frame 2 and a locking assembly 3. The movable frame 2 can move up and down along the fixed frame 1. The fixed frame 1 and the movable frame 2 are connected and locked by the locking assembly 3. It also includes two steel bar clamps 4 for clamping steel bars, one of which is connected to the fixed frame 1, and the other is connected to the movable frame 2. The clamping parts of the two steel bar clamps 4 are coaxially arranged. When the steel bar cage adjusting device of the present invention is in use, the lower steel bar cage is first fixed, the upper steel bar cage is hoisted by the lifting equipment, and is docked with the lower steel bar cage, the upper and lower steel bar cages are temporarily connected and fixed by the sleeve, and then the four steel bar cage adjusting devices are respectively fixed in the four directions of the upper and lower steel bar cages, that is, the steel bar clamping device 4 on the fixed frame 1 is connected with the lower steel bar cage, the steel bar clamping device 4 on the movable frame 2 is connected with the upper steel bar cage, and the temporarily connected sleeve is loosened. At this time, the weight of the upper steel bar cage is transmitted to the lower steel bar cage by the steel bar cage adjusting device, and then the movable frame 2 is adjusted to make it move downward along the fixed frame 1, and at the same time, it is locked and fixed by the locking assembly 3 until the distance between the main bars of the upper and lower steel bar cages is adjusted to the minimum, and finally the sleeve on the steel bar is tightened, the steel bar cage connection is completed, and finally the steel bar cage adjusting device is removed, that is, the steel bar clamping device 4 on the fixed frame 1 is removed from the lower steel bar cage, and the steel bar clamping device 4 on the movable frame 2 is removed from the upper steel bar cage to enter the next working cycle. The steel cage adjustment device of the utility model can adjust the gap between the main bars of the upper and lower steel cages after positioning the main bars of the upper and lower steel cages in the horizontal position, so as to ensure that the butt gap between the upper and lower main bars meets the design requirements. Because the clamping parts of the two steel clamps 4 are coaxially arranged, the coaxiality requirements of the main bars of the upper and lower steel cages can be ensured at the same time during the gap adjustment process, which meets the standard operation requirements of the subsequent connection and fixing of the steel cages with sleeves, and is also conducive to the construction of the upper and lower steel cages. The construction quality is improved. It is simple to operate. When installing, you only need to install the two steel clamps 4 on the upper and lower steel cages and then adjust them. When disassembling, you only need to remove the two steel clamps 4 from the upper and lower steel cages respectively. It is easy to use, and the steel clamps 4 can be reused. In other embodiments, the number of steel cage adjustment devices can be increased or decreased according to actual use needs.

[0028] In this embodiment, the movable frame 2 includes a first crossbeam 21 and a first vertical axis 22, and the fixed frame 1 includes a second crossbeam 11 and a second vertical axis 12. One end of the first crossbeam 21 is fixedly connected to the first vertical axis 22, and the other end of the first crossbeam 21 is provided with a first through hole 23 for accommodating the second vertical axis 12. One end of the second crossbeam 11 is fixedly connected to the second vertical axis 12, and the other end of the second crossbeam 11 is provided with a second through hole 13 for accommodating the first vertical axis 22. The first vertical axis 22 and the second vertical axis 12 are mutually inserted into the corresponding second through hole 13 and first through hole 23. The locking assembly 3 is used to adjust and lock the first vertical axis 22 and the second crossbeam 11. The first crossbeam 21 is connected to the first vertical axis 22 in a T-shape, and the second crossbeam 11 is connected to the second vertical axis 12 in a T-shape. The first vertical axis 22 and the second vertical axis 12 are mutually inserted into the corresponding second through hole 13 and the first through hole 23, that is, a quadrilateral is formed between the first crossbeam 21, the first vertical axis 22, the second crossbeam 11 and the second vertical axis 12. The second crossbeam 11 has a guiding function. The locking assembly 3 adjusts and locks the first vertical axis 22 and the second crossbeam 11, so as to adjust the distance between the steel bar clamp 4 connected to the movable frame 2 and another steel bar clamp 4. This way of sliding with the first vertical axis 22 and the second vertical axis 12 is simple and convenient to operate. In other embodiments, the locking assembly 3 can also adjust and lock the second vertical axis 12 and the first crossbeam 21. Preferably, the axes of the first vertical axis 22 and the second vertical axis 12 are parallel to each other.

[0029] In this embodiment, there is a clearance fit between the second vertical shaft 12 and the first through hole 23, which can ensure that there is a certain lubrication gap after the second vertical shaft 12 is inserted into the first through hole 23, and there is no left-right shaking phenomenon.

[0030] In this embodiment, the diameter of the second vertical shaft 12 is 0.5-1 mm smaller than the diameter of the first through hole 23. Preferably, the outer peripheral surfaces of the first vertical shaft 22 and the second vertical shaft 12 are smooth surfaces, and the molding surfaces of the first through hole 23 and the second through hole 13 are smooth surfaces.

[0031] In this embodiment, the locking assembly 3 includes an external thread 31 provided at one end of the first vertical axis 22 away from the first crossbeam 21, and two adjusting bolts 32 are threadedly connected to the external thread 31. The two adjusting bolts 32 are provided on opposite sides of the second crossbeam 11 and are tightly fitted to the second crossbeam 11. The locking assembly 3 is set as a combined structure of the external thread 31 and the two adjusting bolts 32, which has a simple structure and is easy to operate. It can achieve locking while adjusting the distance, and can also be applied to small-range and high-precision adjustments.

[0032] In this embodiment, the adjusting bolt 32 includes a hexagonal portion 321 and a circular portion 322 connected to each other. The outer diameter of the hexagonal portion 321 meets the specifications of a general hexagonal bolt. The circular portion 322 is inserted into the second through hole 13 and has a clearance fit with the second through hole 13. It can ensure that there is a certain lubrication clearance after the circular portion 322 is inserted into the second through hole 13, and there is no left and right shaking. The two adjusting bolts 32 are symmetrically arranged along the second crossbeam 11, and the circular portions 322 of the two adjusting bolts 32 are respectively inserted into the second through hole 13 from the upper and lower sides of the second through hole 13. Preferably, the outer diameter of the circular portion 322 is 0.5 to 1 mm smaller than the aperture of the second through hole 13.

[0033] In this embodiment, one of the steel bar clamps 4 is detachably connected to the fixed frame 1, and the other steel bar clamp 4 is detachably connected to the movable frame 2. The steel bar clamp 4 is detachably connected to the fixed frame 1 and the movable frame 2. When the steel bar clamp 4 is damaged, only the steel bar clamp 4 can be replaced, thereby reducing maintenance costs.

[0034] In this embodiment, a first connecting plate 24 is provided at one end of the first crossbeam 21, a second connecting plate 14 is provided at one end of the second crossbeam 11, one of the steel bar clamps 4 is connected to the first connecting plate 24 via a connecting bolt 5, and another steel bar clamp 4 is connected to the second connecting plate 14 via a connecting bolt 5. The steel bar clamp 4 is connected to the fixed frame 1 and the movable frame 2 via the connecting bolt 5, which is simple to operate, has a stable connection, and is easy to disassemble and assemble.

[0035] In this embodiment, the steel bar clamp 4 includes a support plate 41, a fixed clamp plate 42 and a movable clamp plate 43. The fixed clamp plate 42 is fixedly connected to the support plate 41. The movable clamp plate 43 is hingedly connected to the support plate 41 through a pin shaft 44. The movable clamp plate 43 can rotate along the pin shaft 44 and close with the fixed clamp plate 42. The movable clamp plate 43 and the fixed clamp plate 42 are connected and locked by a locking bolt 45. One of the support plates 41 is connected to the first connecting plate 24 through a connecting bolt 5, and the other support plate 41 is connected to the second connecting plate 14 through a connecting bolt 5. The clamping part includes two semi-cylindrical clamping surfaces provided on the fixed clamp plate 42 and the movable clamp plate 43. The steel bar clamp 4 is set as a combined structure of a movable clamp plate 43 and a fixed clamp plate 42, which is convenient for fixing the steel bars with two clamp plates, and then connected and locked by a locking bolt 45, which is convenient for installation and disassembly. At the same time, the connection is stable and the stability of the clamped steel bars can be ensured. Providing the clamping portion with two semi-cylindrical clamping surfaces can increase the contact area between the clamping portion and the clamped steel bar, thereby ensuring the reliability of clamping.

[0036] In this embodiment, the cross-sectional radius of the semi-cylindrical clamping surface is equal to the radius of the clamped steel bar, which can maximize the contact area between the clamping portion and the clamped steel bar, thereby improving the reliability of the clamping action.

[0037] A method for using a steel cage adjusting device, applied to the steel cage adjusting device, comprises the following steps:

[0038] Step 1: Fix the lower steel cage, use the lifting equipment to lift the upper steel cage and connect it with the lower steel cage, and use the sleeve to temporarily connect and fix the upper and lower steel cages;

[0039] Step 2: Install the two steel bar clamps 4 in each steel bar cage adjustment device on the upper and lower steel bar cages respectively, and install multiple steel bar cage adjustment devices in multiple directions of the steel bar cages respectively;

[0040] Step 3: Loosen the temporary connection sleeve, adjust the position between the fixed frame 1 and the movable frame 2, and adjust the spacing between the main bars of the upper and lower steel cages to a suitable distance;

[0041] Step 4: Tighten the sleeve to complete the connection between the upper and lower steel cages, remove the two steel clamps 4 in each steel cage adjustment device from the upper and lower steel cages, and enter the next working cycle.

[0042] This method of use utilizes multiple steel cage adjustment devices to make the main bars of the upper and lower steel cages close together without gaps. It is simple to operate and convenient for manual disassembly and assembly. It can improve the connection quality between the upper and lower steel cages and ensure that the construction quality meets the requirements of the specifications.

[0043] The steel cage adjustment device of the utility model simplifies the docking work of the upper and lower steel cages, that is, after the lower steel cage is fixed, when the upper steel cage is lifted and docked with the lower steel cage, the main bars of the upper and lower steel cages are temporarily connected by using the sleeve, and after the first alignment connection of the upper and lower steel cages is completed, more than two steel cage adjustment devices are used in groups to complete the precise docking. During the precise docking process, the steel clamps 4 on the fixed frame 1 in each steel cage adjustment device are fully utilized to dock and connect with the steel bars of the lower steel cage, and the steel clamps 4 on the movable frame 2 are connected with the steel bars of the upper steel cage. At this time, the upper and lower steel cages are connected into one by the corresponding steel clamps 4, forming a rigid connection, so that the weight of the upper steel cage can be transmitted to the lower steel cage by the steel cage adjustment device. At this time, the movable frame 2 is used to make it move downward along the fixed frame 1 to accurately adjust the upper and lower coaxiality and end point distance of each steel bar of the upper and lower steel cages. Finally, the sleeve on the steel bar is tightened to complete the connection of the upper and lower steel cages and remove the steel cage adjustment device. The removed steel cage adjustment device is reused in the next working cycle. The utility model meets the standard requirements of construction operations by first fixing and establishing rigid connections in the horizontal and vertical directions of the upper and lower steel cages and then accurately adjusting the distance between the upper and lower steel cages, which can effectively improve the construction quality, and is simple to operate, easy to use, quick to install and disassemble, and reusable, which greatly reduces the labor intensity of workers, shortens the construction time, and reduces safety hazards.

[0044] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A steel cage adjustment device, characterized in that: The invention comprises a fixed frame (1), a movable frame (2) and a locking assembly (3), wherein the movable frame (2) can move up and down along the fixed frame (1), the fixed frame (1) and the movable frame (2) are connected and locked via the locking assembly (3), and further comprises two steel bar clamps (4) for clamping steel bars, wherein one of the steel bar clamps (4) is connected to the fixed frame (1), and the other of the steel bar clamps (4) is connected to the movable frame (2), and the clamping parts of the two steel bar clamps (4) are coaxially arranged; the movable frame (2) comprises a first cross beam (21) and a first vertical axis (22), and the fixed frame (1) comprises a second cross beam (11) and a second vertical axis (22). Axle (12), one end of the first crossbeam (21) is fixedly connected to the first vertical axis (22), the other end of the first crossbeam (21) is provided with a first through hole (23) for accommodating the second vertical axis (12), one end of the second crossbeam (11) is fixedly connected to the second vertical axis (12), the other end of the second crossbeam (11) is provided with a second through hole (13) for accommodating the first vertical axis (22), the first vertical axis (22) and the second vertical axis (12) are mutually inserted into the corresponding second through hole (13) and the first through hole (23), and the locking assembly (3) is used to adjust and lock the first vertical axis (22) and the second crossbeam (11).

2. The steel cage adjustment device according to claim 1, characterized in that: There is a clearance fit between the second vertical axis (12) and the first through hole (23).

3. The steel cage adjustment device according to claim 2, characterized in that: The diameter of the second vertical axis (12) is 0.5 to 1 mm smaller than the diameter of the first through hole (23).

4. The steel cage adjustment device according to claim 2, characterized in that: The locking assembly (3) comprises an external thread (31) arranged at one end of the first vertical axis (22) away from the first crossbeam (21), and two adjusting bolts (32) are threadedly connected to the external thread (31). The two adjusting bolts (32) are arranged on opposite sides of the second crossbeam (11) and are tightly fitted with the second crossbeam (11).

5. The steel cage adjustment device according to claim 4, characterized in that: The adjusting bolt (32) comprises a hexagonal portion (321) and a circular portion (322) which are connected to each other. The outer diameter of the hexagonal portion (321) meets the specifications of a general hexagonal bolt. The circular portion (322) is inserted into the second through hole (13) and is clearance-matched with the second through hole (13).

6. The reinforcement cage adjustment device according to any one of claims 1 to 5, characterized in that: One of the steel bar clamps (4) is detachably connected to the fixed frame (1), and the other steel bar clamp (4) is detachably connected to the movable frame (2).

7. The steel cage adjustment device according to claim 6, characterized in that: A first connecting plate (24) is provided at one end of the first crossbeam (21), and a second connecting plate (14) is provided at one end of the second crossbeam (11), wherein one of the steel bar clamps (4) is connected to the first connecting plate (24) via a connecting bolt (5), and the other steel bar clamp (4) is connected to the second connecting plate (14) via the connecting bolt (5).

8. The steel cage adjustment device according to claim 7, characterized in that: The steel bar clamp (4) comprises a support plate (41), a fixed clamp (42) and a movable clamp (43), wherein the fixed clamp (42) is fixedly connected to the support plate (41), and the movable clamp (43) is hingedly connected to the support plate (41) via a pin shaft (44), and the movable clamp (43) can rotate along the pin shaft (44) and close with the fixed clamp (42), and the movable clamp (43) and the fixed clamp (42) are connected and locked via a locking bolt (45), one of the support plates (41) is connected to the first connecting plate (24) via a connecting bolt (5), and the other support plate (41) is connected to the second connecting plate (14) via a connecting bolt (5), and the clamping portion comprises two semi-cylindrical clamping surfaces provided on the fixed clamp (42) and the movable clamp (43).

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