Fixing device of large-stroke jacking oil cylinder for convertible stand and using method of fixing device

Abstract

The invention relates to the technical field of steel structure construction, in particular to a jacking technology of a steel structure module, in particular to a fixing device of a large-stroke jacking oil cylinder for a convertible stand and a using method of the fixing device. The fixing device is characterized in that the fixing device comprises an anchoring part (1), a connecting part (2) and an oil cylinder fixing part (3), the anchoring part (1) is connected with the oil cylinder fixing part (3) through the connecting part (2), and the connecting part (2) is connected with the oil cylinder fixing part (3) through the connecting part (2); and the anchoring part (3) is connected with a structural part of the convertible stand. The invention provides a method for fixing a jacking oil cylinder for synchronous jacking construction of a movable inclined stand. The fixing device can be installed on a vertical web member and a chord member of a main truss of the movable inclined stand, jacking oil cylinders on the two sides are fixed in an embracing mode through the hoop plates, and it is guaranteed that the oil cylinders are always kept stable in the jacking process.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, in particular to the jacking technology of steel structure modules, and specifically to a fixing device for a large-stroke jacking oil cylinder for a convertible grandstand and its usage method. Background Art

[0002] The traditional overall jacking method for steel structures is to assemble the structure to be jacked on the ground and then use large-tonnage hydraulic cylinders to jack the structure as a whole to the designed position. In this method, during the jacking process, it is necessary to ensure the verticality of the installation of the jacking equipment so that the structure can rise and be in place more vertically. In the past traditional jacking construction, generally, the diameter of the oil cylinder was large and the jacking stroke was small, so there was no need to consider installing an oil cylinder fixing device.

[0003] With the continuous development of construction technology, the steel structure jacking method has been applied in more and more fields. For example, during the construction and use of large public venues, there is also a need for overall jacking of the steel structure part of the convertible grandstand. For the steel structure of the convertible inclined grandstand, during its jacking process, large-stroke oil cylinders are required. In order to ensure the stability of the large-stroke oil cylinder during the jacking process and prevent the overall deflection of the structure during jacking, a fixing device is extremely needed at this time to ensure the verticality and stability of the oil cylinder during jacking. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above defects and propose a fixing device for a large-stroke jacking oil cylinder for a convertible grandstand and its usage method.

[0005] To achieve the above purpose, the present invention is implemented as follows: A fixing device for a large-stroke jacking oil cylinder for a convertible grandstand, including an anchor (1), a connecting member (2) and an oil cylinder fixing member (3). The anchor (1) is connected to the oil cylinder fixing member (3) through the connecting member (2), and the anchor (3) is connected to the structural member of the convertible grandstand.

[0006] For the fixing device for a large-stroke jacking oil cylinder for a convertible grandstand, there are two sets of the oil cylinder fixing member (3) and the connecting member (2), which are arranged along the axis direction of the jacking oil cylinder and are respectively connected to the anchor (1) and the structural member of the convertible grandstand.

[0007] For the above-mentioned fixing device for a large-stroke jacking oil cylinder for a convertible grandstand, the anchor (1) is sleeved on the structural member of the convertible grandstand, and it includes an inner lining plate in a surrounding shape, and the shape surrounded by the inner lining plate is the same as the projection of the structural member of the convertible grandstand.

[0008] The above-mentioned fixing device for the large-stroke jacking oil cylinder of the convertible grandstand opens holes in the connecting piece (2), the anchor piece (1), the structural member and the oil cylinder fixing piece (3), and realizes the fixed connection between each other between the connecting piece (2) and the anchor piece (1), between the connecting piece (2) and the structural member of the convertible grandstand, and between the connecting piece (2) and the oil cylinder fixing piece (3) by arranging galvanized bolts in the holes.

[0009] The above-mentioned fixing device for the large-stroke jacking oil cylinder of the convertible grandstand has an arc-shaped notch opened on the side of the connecting plate (2) to accommodate the jacking oil cylinder, and oil cylinder fixing pieces (3) are arranged on both sides of the arc-shaped notch of the connecting plate (2), and the oil cylinder fixing pieces (3) are used to close the arc-shaped notch or reduce the opening size of the arc-shaped notch to prevent the jacking oil cylinder from slipping out of the notch.

[0010] The using method of the fixing device for the large-stroke jacking oil cylinder of the above-mentioned convertible grandstand includes Step 1: Connect and fasten the connecting plates (2) on both sides of the lower chord of the truss with galvanized bolts, and ensure its flatness after installation; Step 2: Connect and fasten the anchor pieces (1), the connecting plates (2) on both sides of the vertical web members with M16 galvanized bolts; arrange rubber linings between the anchor pieces (1) and the vertical web members; Step 3: Invert the large-stroke jacking oil cylinders on both sides of the jacking point, that is, the cylinder barrel of the oil cylinder faces upward and the piston rod faces downward Step 4: Install the oil cylinder fixing pieces (3) on all the connecting plates (2) in sequence. At this time, the connecting plate (2) and the oil cylinder fixing piece (3) can tightly hold the oil cylinder together to ensure its verticality and stability; Step 5: After the synchronous jacking of the large-stroke oil cylinder is completed, after adding support measures on both sides of the truss, the oil cylinder can be depressurized; at this time, the cylinder head of the oil cylinder falls back to the anchor piece (1) and the connecting plate (2), and the jacking oil cylinder then adheres to the connecting plate (2) and can move horizontally with the structure without disassembly; Step 6: After the construction unit completes the jacking construction, disassemble the entire fixing device and transfer it to the next construction unit for installation to achieve the purpose of sharing this device.

[0011] The fixing device for the large-stroke jacking oil cylinder of the convertible grandstand and its using method proposed by the present invention can be applied to the overall jacking construction of steel structures such as medium and small-scale conventional steel truss structure systems. Compared with the traditional oil cylinder fixing device, its advantages are as follows: (1) The structural connection is simple, the disassembly is convenient, and the construction is easy; (2) Through the upper and lower hoop devices, both the verticality of the oil cylinder can be ensured and the horizontal stability of the oil cylinder can be ensured.

[0012] (3) This device is connected to the main structure by bolts instead of welding, which can avoid damaging the main structure. At the same time, the stress condition of this method meets the requirements of the design structure.

[0013] (4) Most of the components of this device are connected by bolt joints, and this device is shared among construction units. It has high recyclability and can effectively reduce construction costs. Brief Description of the Drawings

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the fixing device proposed by the present invention.

[0015] Figure 2 It is a schematic diagram of the usage state of the fixing device proposed by the present invention Figure 1 。

[0016] Figure 3 It is a schematic diagram of the usage state of the fixing device proposed by the present invention Figure 2 。

[0017] Figure 4 It is a schematic diagram of the usage state of the fixing device proposed by the present invention Figure 3 。 Specific Embodiments

[0018] The present invention will be further described below through specific embodiments.

[0019] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection claimed by the present application.

[0020] Such as Figures 1 to 4 , a fixing device for a large-stroke jacking oil cylinder of a convertible grandstand, including an anchor (1), a connecting member (2), and an oil cylinder fixing member (3). The anchor (1) is connected to the oil cylinder fixing member (3) through the connecting member (2), and the anchor (3) is connected to the structural member of the convertible grandstand.

[0021] For the fixing device of the large-stroke jacking oil cylinder of the convertible grandstand, there are two sets of the oil cylinder fixing member (3) and the connecting member (2), which are arranged along the axis of the jacking oil cylinder and are respectively connected to the anchor (1) and the structural member of the convertible grandstand.

[0022] For the above-mentioned fixing device of the large-stroke jacking oil cylinder of the convertible grandstand, the anchor (1) is sleeved on the structural member of the convertible grandstand, and it includes an inner lining plate in a surrounding shape, and the shape surrounded by the inner lining plate is the same as the projection of the structural member of the convertible grandstand.

[0023] The fixing device of the large-stroke jacking oil cylinder for the convertible grandstand described above has holes in the connecting piece (2), the anchor piece (1), the structural piece and the oil cylinder fixing piece (3), and the fixing connection between each other is realized by arranging galvanized bolts in the holes between the connecting piece (2) and the anchor piece (1), between the connecting piece (2) and the structural piece of the convertible grandstand, and between the connecting piece (2) and the oil cylinder fixing piece (3).

[0024] The fixing device of the large-stroke jacking oil cylinder for the convertible grandstand described above has an arc-shaped notch opened on the side of the connecting plate (2) for accommodating the jacking oil cylinder, and oil cylinder fixing pieces (3) are arranged on both sides of the arc-shaped notch of the connecting plate (2), and the oil cylinder fixing pieces (3) are used to close the arc-shaped notch or reduce the opening size of the arc-shaped notch to prevent the jacking oil cylinder from slipping out of the notch. The using method of the fixing device of the large-stroke jacking oil cylinder of the above convertible grandstand includes Step 1: Connect and fasten the connecting plates (2) on both sides of the lower chord of the truss with galvanized bolts, and ensure its flatness after installation; Step 2: Connect and fasten the anchor pieces (1), the connecting plates (2) on both sides of the vertical web members with M16 galvanized bolts; a rubber lining is arranged between the anchor piece (1) and the vertical web member; Step 3: Invert the large-stroke jacking oil cylinders on both sides of the jacking point, that is, the cylinder barrel of the oil cylinder faces upward and the piston rod faces downward Step 4: Install the oil cylinder fixing pieces (3) on all the connecting plates (2) in sequence. At this time, the connecting plate (2) and the oil cylinder fixing piece (3) can tightly hold the oil cylinder together to ensure its verticality and stability; Step 5: After the synchronous jacking of the large-stroke oil cylinder is completed, after adding support measures on both sides of the truss, the oil cylinder can be depressurized; at this time, the cylinder head of the oil cylinder falls back to the anchor piece (1) and the connecting plate (2), and the jacking oil cylinder then adheres to the connecting plate (2) and can move along with the structure without disassembly; Step 6: After the construction unit completes the jacking construction, disassemble the entire fixing device and transfer it to the next construction unit for installation to achieve the purpose of sharing this device. The fixing device of the large-stroke jacking oil cylinder for the convertible grandstand and its using method proposed by the present invention can be applied to the overall jacking construction of steel structures such as medium and small-scale conventional steel truss structure systems. Compared with the traditional oil cylinder fixing device, its advantages are as follows: (1) The structural connection is simple, the disassembly is convenient, and the construction is easy; (2) Through the upper and lower hoop devices, both the verticality of the oil cylinder and the horizontal stability of the oil cylinder can be ensured.

[0025] (3) This device is connected to the main structure by bolts instead of welding, which can avoid damaging the main structure. At the same time, the stress condition of this method meets the requirements of the designed structure.

[0026] (4) Bolt connection nodes are mostly used between the components of this device, and this device is shared among the construction units. Its recyclability is high, which can effectively reduce the construction cost.

[0027] The above are only the embodiments provided by this application and are not used to limit this application. Although this application has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A fixing device for a large-stroke lifting oil cylinder of a convertible grandstand, characterized in that: Anchoring member (1), connecting member (2) and oil cylinder fixing member (3), the anchoring member (1) is connected to the oil cylinder fixing member (3) through the connecting member (2), and the anchoring member (3) is connected to the structural member of the convertible stand.

2. The fixing device for the large-stroke jacking oil cylinder of the convertible grandstand according to claim 1, characterized in that: There are two sets of oil cylinder fixing members (3) and connecting members (2), which are arranged along the axis direction of the jacking oil cylinder and are respectively connected to the anchoring member (1) and the structural member of the convertible stand.

3. The fixing device for the large-stroke jacking oil cylinder of the convertible grandstand according to claim 1 or 2, characterized in that: The anchoring member (1) is sleeved on the structural member of the convertible stand, and it includes an inner lining plate in a surrounding shape, and the shape surrounded by the inner lining plate is the same as the projection of the structural member of the convertible stand.

4. The fixing device for the large-stroke lifting oil cylinder of the convertible grandstand according to claim 1 or 2, characterized in that: Holes are opened on the connecting member (2), the anchoring member (1), the structural member and the oil cylinder fixing member (3), and the connecting member (2) is fixedly connected to the anchoring member (1), between the connecting member (2) and the structural member of the convertible stand, and between the connecting member (2) and the oil cylinder fixing member (3) by arranging galvanized bolts in the holes.

5. The fixing device for the large-stroke jacking oil cylinder of the convertible grandstand according to claim 1 or 2, characterized in that: An arc-shaped notch is opened on the side of the connecting plate (2) to accommodate the jacking oil cylinder, and oil cylinder fixing members (3) are arranged on both sides of the arc-shaped notch of the connecting plate (2), and the oil cylinder fixing members (3) are used to close the arc-shaped notch or reduce the opening size of the arc-shaped notch to prevent the jacking oil cylinder from slipping out of the notch.

6. The usage method of the fixing device of the large-stroke lifting oil cylinder for the convertible grandstand according to claim 1, characterized in that: Including Step 1: Connect and fasten the connecting plates (2) on both sides of the lower chord of the truss with galvanized bolts, and ensure its flatness after installation; Step 2: Connect and fasten the anchoring members (1), connecting plates (2) on both sides of the vertical web member with M16 galvanized bolts; a rubber inner lining is arranged between the anchoring member (1) and the vertical web member; Step 3: Invert the large-stroke jacking oil cylinders on both sides of the jacking point, that is, the cylinder barrel of the oil cylinder faces upward and the piston rod faces downward Step 4: Install the oil cylinder fixing members (3) on all the connecting plates (2) in sequence. At this time, the connecting plate (2) and the oil cylinder fixing member (3) can tightly hold the oil cylinder to ensure its verticality and stability; Step 5: After the synchronous jacking of the large-stroke oil cylinders is completed, after adding support measures on both sides of the truss, the oil cylinders can be depressurized; at this time, the cylinder head of the oil cylinder falls back to the anchoring member (1) and the connecting plate (2), and the jacking oil cylinder then adheres to the connecting plate (2) and can move along with the structure without disassembly; Step 6: After the construction unit completes the jacking construction, disassemble the entire fixing device and transfer it to the next construction unit for installation to achieve the purpose of sharing the device.

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