Steel structure truss detachable support jig frame lifting device and method

Abstract

The application belongs to the technical field of building construction, and discloses a detachable supporting jig frame lifting device for steel structure truss, which comprises a special-shaped supporting base, the special-shaped supporting base is clamped to the outer surface of the supporting jig frame, the special-shaped supporting base is installed on the ground, the upper surface of the special-shaped supporting base is provided with a lifting mechanism capable of detachably driving the supporting jig frame to move, the front and rear sides of the limiting block are provided with protection mechanisms, the inner wall bottom of the special-shaped supporting base is provided with a clamping groove, the clamping groove of the special-shaped supporting base is rotatably connected with a limiting mechanism, the equipment capable of driving the supporting jig frame to move in the lifting mechanism can be detached from the lifting mechanism, so that subsequent workers can quickly disconnect the device and the supporting jig frame by detaching the lifting mechanism, and then the device can serve the lifting of multiple supporting jig frames, thereby expanding the use range of the device.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a detachable support frame lifting device and method for steel structure trusses. Background Technology

[0002] Steel structures refer to structural forms that can bear and transmit loads by connecting steel plates and hot-rolled, cold-bent, or welded profiles with connectors. Steel structure systems have comprehensive advantages such as light weight, factory manufacturing, quick installation, short construction period, good seismic performance, fast investment recovery, and less environmental pollution. Compared with reinforced concrete structures, they have unique advantages in terms of "height, size, and lightness". Globally, especially in developed countries and regions, steel structures are rationally and widely used in the field of building engineering.

[0003] For example, the invention disclosed in CN218708829U is a detachable support frame lifting device for steel trusses. The base is fixed to the concrete foundation with high-strength bolts through screw holes. The bottom of the hydraulic synchronous lifting component is fixedly connected to the base to form a whole. By setting the inclined wedges in the hydraulic synchronous lifting component to embed into the square ear plates of the assembled frame to transmit force, the steel truss support frame can be lifted, which solves the problem of the frame lifting being highly dependent on hoisting auxiliary equipment, thereby saving construction time, reducing the risk of frame installation, and improving the safety of frame installation. The top plate frame component is connected to the assembled frame through an external gear slewing mechanism, which enables the frame to cope with different angles of support for the truss roof. The truss fixing device makes the top plate frame component tightly engaged with the irregular steel truss, preventing the main truss structure of the steel roof from shaking. The work platform is equipped with guardrails to ensure the safety of construction workers.

[0004] In the process of developing this application, the following problems were found with this technology: Most existing steel truss detachable support frame lifting devices are used by installing and positioning them on the outer end of the support frame to improve the stability of the lifting device during use. However, most support frame lifting devices cannot be quickly installed and disassembled during use, which means that subsequent lifting devices can only be used on the outer end of a single support frame, thereby increasing the cost of using the lifting device and reducing the practicality of the equipment.

[0005] To address this, a detachable support frame lifting device and method for steel trusses are proposed. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that most support frame lifting devices cannot be quickly installed and dismantled during use, which means that subsequent lifting devices can only be used up to the outer end of a single support frame, thus increasing the cost of using the lifting device. This invention provides a detachable support frame lifting device with a steel structure truss.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0008] A detachable support frame lifting device for steel trusses includes an irregularly shaped support base, which is installed on the ground. The bottom of the inner wall of the irregularly shaped support base is provided with a slot. A limit mechanism is rotatably connected inside the slot of the irregularly shaped support base. The irregularly shaped support base is snapped onto the outer surface of the support frame.

[0009] The upper surface of the irregular support base is equipped with a detachable lifting mechanism for moving the support frame, and the top surface of the irregular support base is equipped with a positioning mechanism for limiting the movement range of the support frame.

[0010] Preferably, the lifting mechanism includes two sets of hydraulic cylinders;

[0011] The two sets of hydraulic cylinders are respectively installed on the upper left and right sides of the upper surface of the irregular support base. The output end of the two sets of hydraulic cylinders is equipped with a U-shaped limiting plate. The top of the inner wall of the two sets of U-shaped limiting plates is equipped with an electric telescopic rod. The bottom of the inner wall of the two sets of U-shaped limiting plates is engaged with a base plate. The upper surface of the base plate is provided with two sets of grooves.

[0012] Both sets of electric telescopic rods are equipped with positioning plates at their output ends, and the bottom ends of the two sets of positioning plates are respectively inserted into the two sets of grooves in the base plate.

[0013] The upper surface of the base plate is provided with a slot, and a U-shaped support frame is engaged inside the slot. The front and rear sides of the U-shaped support frame are provided with threaded holes. The threads inside the two sets of threaded holes of the U-shaped support frame are connected to lead screws. The bottom of the inner wall of the U-shaped support frame is provided with threaded holes. The threads inside the threaded holes of the U-shaped support frame are connected to bolts. The external threads of the bolts pass through the threaded holes of the U-shaped support frame and connect to the inside of the base plate.

[0014] Preferably, the inner walls of the front and rear sides of the two sets of U-shaped limiting plates are provided with slots, and the slots of the two sets of U-shaped limiting plates are slidably connected to limiting blocks. The adjacent sides of the two sets of limiting blocks are installed on the front and rear sides of the adjacent set of positioning plates, and protective mechanisms are installed on the front and rear sides of the limiting blocks.

[0015] Preferably, the protective mechanism includes four sets of fixing blocks;

[0016] The four sets of fixing blocks are respectively installed on the front and rear sides of the two sets of U-shaped limiting plates. The upper surface of each of the four sets of fixing blocks is provided with a through hole. A connecting rod is slidably connected inside the through hole of each of the four sets of fixing blocks. The lower surface of each of the four sets of connecting rods is installed on the upper surface of the irregular support base.

[0017] Preferably, the positioning mechanism includes two sets of L-shaped limiting plates; the two sets of L-shaped limiting plates are installed on the upper surface of the irregular support base, the inner sidewalls of the two sets of L-shaped limiting plates are parallel to the inner wall of the irregular support base, the outer surfaces of the two sets of L-shaped limiting plates away from their own axis are provided with slots, L-shaped limiting blocks are slidably connected inside the two sets of slots of the two sets of L-shaped limiting plates, grooves are provided on the inner walls of the adjacent sides of the two sets of L-shaped limiting blocks, magnetic blocks are slidably connected inside the grooves of the two sets of L-shaped limiting blocks, threaded holes are provided on the adjacent sides of the two sets of L-shaped limiting blocks, screws are threadedly connected inside the two sets of L-shaped limiting blocks, wheel disks are provided on the outer surfaces of the two sets of screws, and opposite ends of the two sets of screws abut against the adjacent sides of the two sets of magnetic blocks.

[0018] Preferably, the upper surface of both sets of L-shaped limiting blocks is provided with through holes, and positioning rods are inserted into the through holes of both sets of L-shaped limiting blocks. The upper surface of the irregular support base is provided with two sets of through holes, and the positions of the two sets of through holes inside the irregular support base are respectively located on the moving paths of the two sets of positioning rods.

[0019] Preferably, the limiting mechanism includes a slider;

[0020] The irregular support base has grooves on the inner walls of both sides of the slot. The slider is rotatably connected to the two sets of grooves in the irregular support base. The upper surface of the slider is provided with a U-shaped fixing block. The U-shaped fixing block is hinged to a limiting plate. The upper surfaces of both sides of the irregular support base have positioning slots. The two sets of positioning slots of the irregular support base are located on the rotation path of the limiting plate. The front of the limiting plate is parallel to the back of the internal locking support frame of the irregular support base.

[0021] Preferably, a positioning block is installed at the end of the limiting plate away from the U-shaped fixing block, and the outer contour of the positioning block matches the inner contour of the groove of the irregular support base.

[0022] A construction method for a detachable support frame lifting device for steel trusses includes the following steps:

[0023] Step 1: Assemble the device

[0024] By flipping the limiting plate outwards and detaching it from the irregular support base, the interior of the irregular support base is exposed.

[0025] The irregular support base is fixed to the ground by snapping the slot of the irregular support base onto the outer surface of the support frame;

[0026] Flip down the limiting plate and engage it with the two sets of positioning slots on the irregular support base, so that the front of the limiting plate abuts against the back of the irregular support base engaging the support frame, thereby limiting the movement of the irregular support base at the outer end of the support frame by the limiting mechanism.

[0027] Step 2: Fix the support frame

[0028] A base plate is inserted below the bottom of the vertical secondary crossbar of the support frame. The base plate is placed on the bottom of the inner wall of the two sets of U-shaped limiting plates. Then, by activating the two sets of electric telescopic rods, the two sets of positioning plates are moved, and the bottom ends of the two sets of positioning plates are inserted into the grooves of the base plate, so that the two sets of positioning plates position the base plate at the bottom of the inner wall of the two sets of U-shaped limiting plates.

[0029] Install the U-shaped support frame on the base plate with bolts, start two sets of hydraulic cylinders to push two sets of U-shaped limit plates to initially lift the base plate until the U-shaped support frame 206 fits against the bottom of the vertical secondary bottom crossbar of the support frame, and use the screw rod to tighten and fix the vertical secondary bottom crossbar of the support frame.

[0030] The L-shaped limiting block is inserted into the groove of the L-shaped limiting plate, and the L-shaped limiting block is clamped around the outside of the support frame column to horizontally limit the support frame column and complete the fixing operation of the support frame.

[0031] Step 3: Assemble the support frame

[0032] By activating two sets of hydraulic cylinders to push two sets of U-shaped limit plates, the screw rods are driven to push the support frame upward, thereby completing the lifting of the support frame. During this process, the L-shaped limit block does not fall out of the groove of the L-shaped limit plate.

[0033] Install the horizontal and vertical components of the lower support frame at the bottom of the support frame, and immediately after the vertical components are installed, insert another set of L-shaped limiting blocks into the groove of the L-shaped limiting plate, and attach the opposite sides of the two sets of magnetic blocks to the inner walls of the left and right sides of the front of the support frame.

[0034] The adjusting screw is separated from the support frame. By activating two sets of hydraulic cylinders, two sets of U-shaped limit plates are driven to push the screw to move the support frame downward a short distance. The U-shaped support frame is disengaged from the support frame, and the support frame will not move downward because the lower support frame component is installed at the bottom. Remove the bolts, U-shaped support frame, base plate, and L-shaped limit plate. The two sets of hydraulic cylinders drive the two sets of U-shaped limit plates to reset to the initial state.

[0035] Step 4: Assemble the remaining support frame

[0036] Repeat steps two and three until the lifting and assembly of the support frame is complete.

[0037] Preferably, the bottom of the slot of the L-shaped limiting plate is provided with a notch, and the notch is located at the bottom of two opposite slots;

[0038] Both ends of the L-shaped limiting block are provided with locking blocks. Each locking block includes a fixed part fixed on the L-shaped limiting block. A movable part is connected to the fixed part by a spring. The movable part and the fixed part are wedge-shaped surfaces. A permanent magnet is provided on the side of the movable part that contacts the locking groove.

[0039] The notch includes a slot one for the horizontal insertion of the fixed part and a slot two for the horizontal insertion of the movable part while moving downward relative to the fixed part.

[0040] The beneficial effects of this invention are as follows:

[0041] 1. The device that moves the support frame by lifting the lifting mechanism can be disassembled from the lifting mechanism. This allows subsequent workers to quickly disconnect the device from the support frame by disassembling the lifting mechanism. As a result, the device can be used to lift multiple sets of support frames, thereby expanding the scope of application of the device, reducing the subsequent use cost of the device, and thus improving the practicality of the device.

[0042] 2. This invention does not merely rely on lead screws to restrict the support frame and ensure stability during lifting. It also pushes two sets of L-shaped limiting blocks, which are slidably connected to the two slots of two sets of L-shaped limiting plates. Then, by rotating two sets of wheel disks, two sets of screws are driven to move two sets of magnetic blocks, causing opposite sides of the magnetic blocks to adhere to the inner walls of the left and right sides of the front of the support frame. This restricts the horizontal freedom of the support frame, allowing the two sets of L-shaped limiting blocks to move synchronously during lifting. This restricts the movement path of the support frame, minimizing positional deviation and improving safety during use. Attached Figure Description

[0043] Figure 1This is a side view of the structure of the present invention.

[0044] Figure 2 This is a schematic diagram of the top structure of the present invention.

[0045] Figure 3 This is the present invention. Figure 1 Enlarged view of point A in the middle.

[0046] Figure 4 This is the present invention. Figure 2 Enlarged view of point B in the middle.

[0047] Figure 5 This is a diagram showing the location distribution of the notch in this invention.

[0048] Figure 6 This is a diagram showing the connection relationship between the fixed part and the movable part in this invention.

[0049] Reference numerals: 1. Irregularly shaped support base; 2. Lifting mechanism; 201. Hydraulic cylinder; 202. U-shaped limiting plate; 203. Base plate; 204. Electric telescopic rod; 205. Positioning plate; 206. U-shaped support frame; 207. Screw rod; 208. Bolt; 3. Limiting block; 4. Positioning mechanism; 401. L-shaped limiting plate; 4011. Notch; 40111. Fixing part; 40112. Movable part 402. L-shaped limiting block; 4021. Locking block; 40211. Fixed part; 40212. Moving part; 40213. Permanent magnet; 403. Magnetic block; 404. Screw; 405. Wheel; 5. Limiting mechanism; 501. Slider; 502. U-shaped fixing block; 503. Limiting plate; 6. Protective mechanism; 601. Fixing block; 602. Connecting rod; 7. Positioning block; 8. Positioning rod. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0052] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0054] like Figures 1 to 4 As shown, a detachable support frame lifting device for steel trusses includes a shaped support base 1, which is snapped onto the outer surface of the support frame. The shaped support base 1 is installed on the ground. A detachable lifting mechanism 2 for driving the support frame to move is installed on the upper surface of the shaped support base 1. Protective mechanisms 6 are installed on the front and rear sides of the limiting block 3. A slot is opened at the bottom of the inner wall of the shaped support base 1. A limiting mechanism 5 is rotatably connected inside the slot of the shaped support base 1. A positioning mechanism 4 for limiting the movement range of the support frame is installed on the top surface of the shaped support base 1.

[0055] like Figure 1 and Figure 2 As shown, the lifting mechanism 2 includes two sets of hydraulic cylinders 201. The two sets of hydraulic cylinders 201 are respectively installed on the upper left and right sides of the upper surface of the irregular support base 1. The output ends of the two sets of hydraulic cylinders 201 are each equipped with a U-shaped limiting plate 202. The top of the inner wall of the two sets of U-shaped limiting plates 202 is equipped with an electric telescopic rod 204. The bottom of the inner wall of the two sets of U-shaped limiting plates 202 is engaged with a base plate 203. The upper surface of the base plate 203 has two sets of grooves. The output ends of the two sets of electric telescopic rods 204 are each equipped with a positioning plate 205. The bottom ends of the two sets of positioning plates 205 are respectively inserted into... Inside the two sets of grooves in the base plate 203, a slot is provided on the upper surface of the base plate 203. A U-shaped support frame 206 is engaged inside the slot of the base plate 203. Threaded holes are provided on both the front and rear sides of the U-shaped support frame 206. A lead screw 207 is connected to the threaded holes 1 of the two sets of threaded holes 1 of the U-shaped support frame 206. A threaded hole 2 is provided at the bottom of the inner wall of the U-shaped support frame 206. A bolt 208 is connected to the threaded hole 2 of the U-shaped support frame 206. The external thread of the bolt 208 passes through the threaded hole 2 of the U-shaped support frame 206 and is connected to the inside of the base plate 203.

[0056] Specifically, when the inner wall of the subsequent irregular support base 1 is installed and attached to the outer surface of the support frame, the base plate 203 is inserted below the second bottom crossbar of the support frame. By pushing the base plate 203, the base plate 203 is placed at the bottom of the inner wall of the two sets of U-shaped limiting plates 202. Then, by activating the two sets of electric telescopic rods 204, the two sets of positioning plates 205 are pushed downwards, and the bottom ends of the two sets of positioning plates 205 are respectively inserted into the grooves of the base plate 203, so that the two sets of positioning plates 205 will... The base plate 203 is positioned at the bottom of the inner wall of the two sets of U-shaped limiting plates 202. By activating the two sets of hydraulic cylinders 201, the two sets of U-shaped limiting plates 202 are pushed to move the base plate 203 and the lead screw 207 to the lower surface of the secondary bottom crossbar of the support frame. The bottom of the inner wall of the lead screw 207 is then placed against the support frame. By activating the two sets of hydraulic cylinders 201, the two sets of U-shaped limiting plates 202 are pushed to move the lead screw 207, thereby completing the lifting of the support frame.

[0057] By rotating bolt 208, bolt 208 is moved out of the base plate 203 and the U-shaped support frame 206, allowing the U-shaped support frame 206 to be disassembled from the top of the base plate 203. This minimizes the impact of screw rod 207 on the normal installation and disassembly of the base plate 203 during use. By rotating the two sets of screw rods 207, the adjacent ends of the two sets of screw rods 207 are respectively abutted against the front and rear sides of the support frame, so that the two sets of screw rods 207 tightly fit the U-shaped support frame 206 inside the support frame, thereby minimizing the movement of the U-shaped support frame 206 inside the support frame during use.

[0058] like Figure 1 and Figure 2 As shown, the protective mechanism 6 includes four sets of fixing blocks 601. The four sets of fixing blocks 601 are respectively installed on the front and rear sides of the two sets of U-shaped limiting plates 202. The upper surface of each of the four sets of fixing blocks 601 is provided with a through hole. The through holes of each of the four sets of fixing blocks 601 are slidably connected with a connecting rod 602. The lower surface of each of the four sets of connecting rods 602 is installed on the upper surface of the irregular support base 1.

[0059] Specifically, during the process of raising the support frame, the two sets of U-shaped limiting plates 202 simultaneously drive the four sets of fixing blocks 601 to move. The four sets of fixing blocks 601 are then slidably connected to the outer surfaces of the four sets of connecting rods 602, which restricts the position of the two sets of U-shaped limiting plates 202 during the raising process. This minimizes the risk of the two sets of U-shaped limiting plates 202 shifting position during the raising process, thus preventing the support frame from tilting. This improves the safety of the lifting mechanism 2 when raising the support frame.

[0060] like Figure 3 and Figure 4As shown, slots are provided on the inner walls of the front and rear sides of the two sets of U-shaped limiting plates 202. Limiting blocks 3 are slidably connected inside the slots of the two sets of U-shaped limiting plates 202. The adjacent sides of the two sets of limiting blocks 3 are installed on the front and rear sides of the adjacent set of positioning plates 205.

[0061] Specifically, four sets of limiting blocks 3 are slidably connected to the two slots of the two sets of U-shaped limiting plates 202, so that the four sets of limiting blocks 3 restrict the movement path of the two sets of positioning plates 205, thereby avoiding the position of the two sets of positioning plates 205 from shifting during use and causing the two sets of electric telescopic rods 204 to bend, thus improving the service life of the two sets of electric telescopic rods 204.

[0062] like Figure 3 and Figure 4 As shown, the positioning mechanism 4 includes two sets of L-shaped limiting plates 401. The two sets of L-shaped limiting plates 401 are installed on the upper surface of the irregular support base 1. The inner sidewalls of the two sets of L-shaped limiting plates 401 are parallel to the inner wall of the irregular support base 1. The outer surfaces of the two sets of L-shaped limiting plates 401 away from their own axis are provided with slots. L-shaped limiting blocks 402 are slidably connected inside the slots of the two sets of L-shaped limiting plates 401. The inner wall of the adjacent side of the two sets of L-shaped limiting blocks 402 is provided with grooves. The grooves of the two sets of L-shaped limiting blocks 402 are slidably connected with magnetic blocks 403. The adjacent side of the two sets of L-shaped limiting blocks 402 is provided with threaded holes. The internal threads of the two sets of L-shaped limiting blocks 402 are connected with screws 404. The outer surfaces of the two sets of screws 404 are provided with wheel disks 405. The opposite ends of the two sets of screws 404 respectively abut against the adjacent sides of the two sets of magnetic blocks 403.

[0063] Specifically, when the inner walls of the two sets of L-shaped limiting plates 401 are attached to the outer surface of the support frame, the two sets of L-shaped limiting blocks 402 are pushed to slide and connect the two sets of L-shaped limiting blocks 402 into the two sets of slots of the two sets of L-shaped limiting plates 401 respectively. Then, by rotating the two sets of wheel disks 405, the two sets of screws 404 are driven to move the two sets of magnetic blocks 403. The opposite sides of the two sets of magnetic blocks 403 are respectively attracted to the inner walls of the left and right sides of the front of the support frame. This allows the two sets of L-shaped limiting blocks 402 to move synchronously during the subsequent lifting of the support frame, thereby restricting the movement path of the support frame and minimizing the risk of positional deviation during the lifting process. This improves the safety of the device during use.

[0064] like Figure 3 and Figure 4As shown, the upper surfaces of the two sets of L-shaped limiting blocks 402 are provided with through holes, and the internal through holes of the two sets of L-shaped limiting blocks 402 are each connected to a positioning rod 8. The upper surface of the irregular support base 1 is provided with two sets of through holes, and the positions of the two sets of through holes inside the irregular support base 1 are respectively located on the moving paths of the two sets of positioning rods 8.

[0065] Specifically, when the subsequent positioning mechanism 4 is idle, it pushes the two sets of L-shaped limiting blocks 402 to bring their lower surfaces against the upper surface of the irregular support base 1. Then, it pushes the two sets of positioning rods 8 to insert their bottom ends through the through holes of the two sets of L-shaped limiting blocks 402 into the two through holes of the irregular support base 1. This restricts the movement of the two sets of L-shaped limiting blocks 402 within the two slots of the two sets of L-shaped limiting plates 401, thereby minimizing the risk of the two sets of L-shaped limiting blocks 402 sliding up and down within the two slots of the two sets of L-shaped limiting plates 401 during subsequent handling and movement of the device, which could lead to their loss during handling. This improves the service life of the two sets of L-shaped limiting blocks 402.

[0066] like Figure 3 and Figure 4 As shown, the limiting mechanism 5 includes a slider 501. The inner walls of the left and right sides of the slot of the irregular support base 1 are provided with grooves. The slider 501 is rotatably connected to the two sets of grooves inside the irregular support base 1. The upper surface of the slider 501 is provided with a U-shaped fixing block 502. The inside of the U-shaped fixing block 502 is hinged to a limiting plate 503. The upper surfaces of the left and right sides of the irregular support base 1 are provided with positioning slots. The positions of the two sets of positioning slots of the irregular support base 1 are located on the rotation path of the limiting plate 503, and the positions of the slots of the irregular support base 1 are located on the rotation path of the limiting plate 503. The front of the limiting plate 503 is parallel to the back of the internal locking support frame of the irregular support base 1.

[0067] Specifically, when the irregularly shaped support base 1 is snapped onto the outer surface of the support frame and installed on the ground, the inner groove of the U-shaped fixing block 502 is rotated to a position parallel to the positioning slot inside the irregularly shaped support base 1 by rotating the limiting plate 503. Then, the limiting plate 503 is snapped into the two sets of positioning slots of the irregularly shaped support base 1 by rotating the limiting plate 503, so that the front of the limiting plate 503 abuts against the back of the irregularly shaped support base 1 snapped onto the support frame. This restricts the movement of the irregularly shaped support base 1 at the outer end of the support frame, thereby minimizing movement of the irregularly shaped support base 1 during installation on the ground and improving the stability of the irregularly shaped support base 1 during installation.

[0068] like Figure 3 and Figure 4As shown, a positioning block 7 is installed at the end of the limiting plate 503 away from the U-shaped fixing block 502. The outer contour of the positioning block 7 is adapted to the inner contour of the slot of the irregular support base 1. Specifically, by rotating the limiting plate 503, the positioning block 7 is rotated into the slot of the irregular support base 1. Then, by adapting the outer contour of the positioning block 7 to the inner contour of the slot of the irregular support base 1, the positioning block 7 restricts the movement of the limiting plate 503 in the slot of the irregular support base 1 when the limiting plate 503 is rotated into the slot of the irregular support base 1. This avoids the limiting plate 503 from rotating after it is rotated into the slot of the irregular support base 1, thereby preventing the limiting plate 503 from swinging back and forth during the subsequent handling and movement of the device. Therefore, the stability of the limiting mechanism 5 is improved when the device is handled and moved by the subsequent personnel.

[0069] In summary: By pushing the base plate 203, it is placed at the bottom of the inner wall of the two sets of U-shaped limiting plates 202. Then, by activating the two sets of electric telescopic rods 204, the two sets of positioning plates 205 are moved, and the bottom ends of the two sets of positioning plates 205 are respectively inserted into the grooves of the base plate 203. This allows the two sets of positioning plates 205 to position the base plate 203 at the bottom of the inner wall of the two sets of U-shaped limiting plates 202. By activating the two sets of hydraulic cylinders 201, the two sets of U-shaped limiting plates 202 are pushed, causing the base plate 203 and the lead screw 207 to move. The bottom of the inner wall of the lead screw 207 abuts against the lower surface of the support frame inside the support frame. Then, by activating the two sets of hydraulic cylinders 201, the two sets of U-shaped limiting plates 202 are pushed, causing the lead screw 207 to move the support frame, thereby completing the lifting of the support frame.

[0070] Two sets of L-shaped limiting blocks 402 are slidably connected to the two sets of slots of two sets of L-shaped limiting plates 401. Then, by rotating two sets of wheel disks 405, two sets of screws 404 are driven to move two sets of magnetic blocks 403. The opposite sides of the two sets of magnetic blocks 403 are respectively attracted to the inner walls of the left and right sides of the front side of the support frame. This allows the two sets of L-shaped limiting blocks 402 to move synchronously during the subsequent lifting of the support frame. In this way, the two sets of L-shaped limiting blocks 402 restrict the movement path of the support frame, thereby minimizing the possibility of the support frame shifting position during the lifting process.

[0071] The lower surfaces of the two sets of L-shaped limiting blocks 402 are placed against the upper surface of the irregular support base 1. Then, by pushing the two sets of positioning rods 8, the bottom ends of the two sets of positioning rods 8 are inserted into the two sets of through holes in the irregular support base 1 through the internal through holes of the two sets of L-shaped limiting blocks 402. This allows the two sets of positioning rods 8 to restrict the movement of the two sets of L-shaped limiting blocks 402 within the two sets of slots of the two sets of L-shaped limiting plates 401. This helps to prevent the two sets of L-shaped limiting blocks 402 from sliding up and down within the two sets of slots of the two sets of L-shaped limiting plates 401 during subsequent handling and movement of the device, thus avoiding the loss of the two sets of L-shaped limiting blocks 402 during handling.

[0072] By rotating the limiting plate 503, the internal groove of the U-shaped fixing block 502 is rotated to a position parallel to the internal positioning slot of the irregular support base 1. Then, by rotating the limiting plate 503, the limiting plate 503 is engaged with the two sets of positioning slots of the irregular support base 1, so that the front of the limiting plate 503 abuts against the back of the irregular support base 1 engaging the support frame. This restricts the movement of the irregular support base 1 at the outer end of the support frame, thereby minimizing the movement of the irregular support base 1 during subsequent installation on the ground.

[0073] The construction method for the support frame lifting device includes the following steps:

[0074] Step 1: Assemble the device

[0075] By flipping the limiting plate 503 outward and disengaging it from the irregular support base 1, the interior of the irregular support base 1 is exposed.

[0076] The irregular support base 1 is attached to the outer surface of the support frame by its slot, and the irregular support base 1 is fixed to the ground.

[0077] Flip down the limiting plate 503 and snap the limiting plate 503 into the two sets of positioning slots of the irregular support base 1, so that the front of the limiting plate 503 abuts against the back of the irregular support base 1 and the support frame, thereby limiting the movement position of the irregular support base 1 at the outer end of the support frame by the limiting mechanism 5.

[0078] Step 2: Fix the support frame

[0079] A base plate 203 is inserted below the bottom of the vertical secondary bottom crossbar of the support frame. The base plate 203 is placed at the bottom of the inner wall of the two sets of U-shaped limiting plates 202. Then, by activating the two sets of electric telescopic rods 204, the two sets of positioning plates 205 are moved. The bottom ends of the two sets of positioning plates 205 are respectively inserted into the grooves of the base plate 203, so that the two sets of positioning plates 205 position the base plate 203 at the bottom of the inner wall of the two sets of U-shaped limiting plates 202.

[0080] Install the U-shaped support frame 206 on the base plate 203 with bolts 208, start the two sets of hydraulic cylinders 201 to push the two sets of U-shaped limit plates 202 to initially lift the base plate 203 until the U-shaped support frame 206 fits against the bottom of the vertical secondary bottom crossbar of the support frame, and use the screw 207 to abut and fix the vertical secondary bottom crossbar of the support frame.

[0081] The L-shaped limiting block 402 is installed in the groove of the L-shaped limiting plate 401. The L-shaped limiting block 402 is clamped around the outside of the support frame column to horizontally limit the support frame column and complete the fixing operation of the support frame.

[0082] Step 3: Assemble the support frame

[0083] By activating two sets of hydraulic cylinders 201, two sets of U-shaped limit plates 202 are pushed to drive the screw 207 to push the support frame upward, thereby completing the lifting of the support frame. During this process, the L-shaped limit block 402 does not fall out of the groove of the L-shaped limit plate 401.

[0084] Install the horizontal and vertical components of the lower support frame at the bottom of the support frame, and immediately after the vertical components are installed, snap another set of L-shaped limiting blocks 402 into the groove of the L-shaped limiting plate 401, and attach the opposite sides of the two sets of magnetic blocks 403 to the inner walls of the left and right sides of the front of the support frame.

[0085] The adjusting screw 207 is separated from the support frame. By activating the two sets of hydraulic cylinders 201, the two sets of U-shaped limit plates 202 drive the screw 207 to push the support frame downward a short distance. The U-shaped support frame 206 is disengaged from the support frame, and the support frame will not move downward because the lower support frame component is installed at the bottom. Remove the bolts 208, U-shaped support frame 206, base plate 203, and L-shaped limit plate 401. The two sets of hydraulic cylinders 201 drive the two sets of U-shaped limit plates 202 to reset to the initial state.

[0086] Step 4: Assemble the remaining support frame

[0087] Repeat steps two and three until the lifting and assembly of the support frame is complete.

[0088] In the above method, the bottom of the slot of the L-shaped limiting plate 401 is provided with a notch 4011. The notch 4011 is located at the bottom of the two opposite slots. The notch is located on one side of the corresponding magnetic block 403, so that the installation can be completed without the upper L-shaped limiting block 402 disengaging from the slot of the L-shaped limiting plate 401, thereby ensuring the safety of equipment operation.

[0089] Both ends of the L-shaped limiting block 402 are provided with locking blocks 4021. The locking block 4021 includes a fixing part 40211 fixed on the L-shaped limiting block 402. A movable part 40212 is connected to the fixing part 40211 by a spring. There is a wedge-shaped surface between the movable part 40212 and the fixing part 40211. A permanent magnet 40213 is provided on the side of the movable part 40212 that contacts the slot.

[0090] The notch 4011 includes a first slot 40111 for the horizontal insertion of the fixed part 40211 and a second slot 40112 for the horizontal insertion of the movable part 40212, which simultaneously descends along the wedge-shaped surface relative to the fixed part 40211. The fixed part 40211 and the movable part 40212 correspond to and are inserted into the first slot 40111 and the second slot 40112 respectively. After entering along the depth direction of the slot, the second slot 40112 guides the movable part 40212 downwards along the wedge-shaped surface relative to the fixed part 40211, thus compressing the spring. When the movable part 40212 enters the slot, the spring remains compressed. Once inside the slot, the permanent magnet 40213 is attracted to it. When the L-shaped limiting block 402 descends, the fixed part 40211 presses against the movable part 40212 to prevent it from descending further.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A detachable support frame lifting device for steel trusses, comprising an irregularly shaped support base (1), characterized in that: The irregular support base (1) is installed on the ground. The bottom of the inner wall of the irregular support base (1) is provided with a slot. The slot of the irregular support base (1) is rotatably connected to a limiting mechanism (5). The irregular support base (1) is snapped onto the outer surface of the support frame. The upper surface of the irregular support base (1) is equipped with a detachable lifting mechanism (2) for moving the support frame, and the top surface of the irregular support base (1) is equipped with a positioning mechanism (4) for limiting the movement range of the support frame. The lifting mechanism (2) includes two sets of hydraulic cylinders (201); The two sets of hydraulic cylinders (201) are respectively installed on the upper left and right sides of the upper surface of the irregular support base (1). The output end of the two sets of hydraulic cylinders (201) is equipped with a U-shaped limiting plate (202). The top of the inner wall of the two sets of U-shaped limiting plates (202) is equipped with an electric telescopic rod (204). The bottom of the inner wall of the two sets of U-shaped limiting plates (202) is clamped with a base plate (203). The upper surface of the base plate (203) is provided with two sets of grooves. The output ends of both sets of electric telescopic rods (204) are equipped with positioning plates (205), and the bottom ends of the two sets of positioning plates (205) are respectively inserted into the two sets of grooves in the base plate (203); The upper surface of the base plate (203) is provided with a slot, and a U-shaped support frame (206) is engaged inside the slot of the base plate (203). The front and rear sides of the U-shaped support frame (206) are provided with threaded holes. The two sets of threaded holes of the U-shaped support frame (206) are both connected to screw rods (207) by internal threads. The bottom of the inner wall of the U-shaped support frame (206) is provided with threaded holes. The threaded holes of the U-shaped support frame (206) are connected to bolts (208) by internal threads. The external threads of the bolts (208) pass through the threaded holes of the U-shaped support frame (206) and connect to the inside of the base plate (203). The positioning mechanism (4) includes two sets of L-shaped limiting plates (401); Two sets of L-shaped limiting plates (401) are installed on the upper surface of the irregular support base (1). The inner sidewalls of the two sets of L-shaped limiting plates (401) are parallel to the inner wall of the irregular support base (1). The outer surfaces of the two sets of L-shaped limiting plates (401) away from their own axis are provided with slots. L-shaped limiting blocks (402) are slidably connected inside the two sets of slots of the two sets of L-shaped limiting plates (401). The two sets of L-shaped limiting blocks (402) are adjacent to each other. The inner side walls are provided with grooves, and magnetic blocks (403) are slidably connected inside the grooves of the two sets of L-shaped limiting blocks (402). Threaded holes are provided on the adjacent side of the two sets of L-shaped limiting blocks (402). Screws (404) are threadedly connected inside the two sets of L-shaped limiting blocks (402). Wheels (405) are provided on the outer surface of the two sets of screws (404). The opposite ends of the two sets of screws (404) respectively abut against the adjacent side of the two sets of magnetic blocks (403).

2. The detachable support frame lifting device for steel trusses according to claim 1, characterized in that: The inner walls of the front and rear sides of the two sets of the U-shaped limiting plates (202) are provided with slots. The slots of the two sets of the U-shaped limiting plates (202) are slidably connected to the limiting blocks (3). The adjacent sides of the two sets of limiting blocks (3) are installed on the front and rear sides of the adjacent set of positioning plates (205). The front and rear sides of the limiting blocks (3) are equipped with protective mechanisms (6).

3. The detachable support frame lifting device for steel trusses according to claim 2, characterized in that: The protective mechanism (6) includes four sets of fixing blocks (601); The four sets of fixing blocks (601) are respectively installed on the front and rear sides of the two sets of the U-shaped limiting plates (202). The upper surface of the four sets of fixing blocks (601) is provided with through holes. The through holes of the four sets of fixing blocks (601) are slidably connected with connecting rods (602). The lower surface of the four sets of connecting rods (602) is installed on the upper surface of the irregular support base (1).

4. The detachable support frame lifting device for steel trusses according to claim 3, characterized in that: Both sets of L-shaped limiting blocks (402) have through holes on their upper surfaces. Both sets of L-shaped limiting blocks (402) have positioning rods (8) inserted into their internal through holes. The upper surface of the irregular support base (1) has two sets of through holes. The positions of the two sets of through holes inside the irregular support base (1) are respectively located on the moving paths of the two sets of positioning rods (8).

5. The detachable support frame lifting device for steel trusses according to claim 4, characterized in that: The limiting mechanism (5) includes a slider (501); The inner walls of the left and right sides of the slot of the irregular support base (1) are provided with grooves. The slider (501) is rotatably connected to the two sets of grooves of the irregular support base (1). The upper surface of the slider (501) is provided with U-shaped fixing blocks (502). The U-shaped fixing blocks (502) are hinged to the inside of the limiting plate (503). The upper surfaces of the left and right sides of the irregular support base (1) are provided with positioning slots. The positions of the two sets of positioning slots of the irregular support base (1) are located on the rotation path of the limiting plate (503). The position of the slot of the irregular support base (1) is located on the rotation path of the limiting plate (503). The front of the limiting plate (503) is parallel to the back of the internal locking support frame of the irregular support base (1).

6. The detachable support frame lifting device for steel trusses according to claim 5, characterized in that: A positioning block (7) is installed at one end of the limiting plate (503) away from the U-shaped fixing block (502), and the outer contour of the positioning block (7) is adapted to the inner contour of the slot of the irregular support base (1).

7. A construction method for a detachable support frame lifting device for a steel truss as described in claim 6, characterized in that, Includes the following steps: Step 1: Assemble the device By flipping the limiting plate (503) outward and disengaging it from the irregular support base (1), the interior of the irregular support base (1) is exposed; By snapping the slot of the irregular support base (1) onto the outer surface of the support frame, the irregular support base (1) is fixed on the ground; Flip down the limiting plate (503) and snap the limiting plate (503) into the two sets of positioning slots of the irregular support base (1), so that the front of the limiting plate (503) abuts against the back of the irregular support base (1) and the support frame, thereby limiting the movement position of the irregular support base (1) at the outer end of the support frame by the limiting mechanism (5). Step 2: Fix the support frame A base plate (203) is inserted below the bottom of the vertical secondary bottom crossbar of the support frame. The base plate (203) is placed at the bottom of the inner wall of the two sets of U-shaped limiting plates (202). Then, the two sets of positioning plates (205) are moved by activating the two sets of electric telescopic rods (204). The bottom ends of the two sets of positioning plates (205) are respectively inserted into the groove of the base plate (203), so that the two sets of positioning plates (205) position the base plate (203) at the bottom of the inner wall of the two sets of U-shaped limiting plates (202). Install the U-shaped support frame (206) on the base plate (203) with bolts (208), start the two sets of hydraulic cylinders (201) to push the two sets of U-shaped limit plates (202) to initially lift the base plate (203) until the U-shaped support frame (206) fits against the bottom of the vertical secondary bottom crossbar of the support frame, and use the screw (207) to press and fix the vertical secondary bottom crossbar of the support frame. The L-shaped limiting block (402) is installed in the slot of the L-shaped limiting plate (401). The L-shaped limiting block (402) is clamped around the outer perimeter of the support frame column. By rotating the two sets of wheel discs (405), the two sets of screws (404) are driven to push the two sets of magnetic blocks (403) to move. The opposite sides of the two sets of magnetic blocks (403) are respectively attracted to the inner walls of the left and right sides of the front side of the support frame, which horizontally limits the column of the support frame and completes the fixing operation of the support frame. Step 3: Assemble the support frame By activating two sets of hydraulic cylinders (201), two sets of U-shaped limit plates (202) are pushed to drive the screw (207) to push the support frame upward, thereby completing the lifting of the support frame. During this process, the L-shaped limit block (402) does not fall out of the slot of the L-shaped limit plate (401). Install the horizontal and vertical components of the lower support frame at the bottom of the support frame, and immediately after the vertical components are installed, insert another set of L-shaped limiting blocks (402) into the slot of the L-shaped limiting plate (401), and attach the opposite sides of the two sets of magnetic blocks (403) to the inner walls of the left and right sides of the front of the support frame. The adjusting screw (207) is separated from the support frame. By starting two sets of hydraulic cylinders (201), two sets of U-shaped limit plates (202) are driven to drive the screw (207) to push the support frame downward a short distance. The U-shaped support frame (206) is disengaged from the support frame. The support frame will not move downward because the lower support frame component is installed at the bottom. Remove the bolts (208), U-shaped support frame (206), bottom plate (203), and L-shaped limit plate (401). The two sets of hydraulic cylinders (201) drive the two sets of U-shaped limit plates (202) to reset to the initial state. Step 4: Assemble the remaining support frame Repeat steps two and three until the lifting and assembly of the support frame is complete.

8. The construction method of a detachable support frame lifting device for steel trusses according to claim 7, characterized in that: The L-shaped limiting plate (401) has a notch (4011) at the bottom of the slot, and the notch (4011) is located at the bottom of two opposite slots; Both ends of the L-shaped limiting block (402) are provided with locking blocks (4021). The locking block (4021) includes a fixing part (40211) fixed on the L-shaped limiting block (402). A movable part (40212) is connected to the fixing part (40211) by a spring. There is a wedge-shaped surface between the movable part (40212) and the fixing part (40211). A permanent magnet (40213) is provided on the side of the movable part (40212) that contacts the slot. The notch (4011) includes a slot one (40111) for the fixed part (40211) to be horizontally inserted and a slot two (40112) for the movable part (40212) to be horizontally inserted and to move downward relative to the fixed part (40211).

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