A lifting and unloading system for a super-large area net rack and a construction forming method thereof

Abstract

The application discloses a super-large-area net rack lifting and unloading system and a construction forming method thereof, which comprises a bottom support frame, a top support frame is installed on the top of the bottom support frame, a lifting mechanism is arranged in the bottom support frame to make the net rack body vertically ascend and descend, and the lifting mechanism comprises a driving motor installed on the side surface of the bottom support frame, and the application relates to the technical field of building structure installation. The super-large-area net rack lifting and unloading system and the construction forming method thereof are characterized in that the lifting mechanism is arranged, the driving motor is used for driving the rotation of the driving rotating shaft, the driving rotating shaft is matched with the worm and the worm wheel to drive the rotation of the secondary rotating shaft, the secondary rotating shaft drives the rotation of the winding roller, the winding operation of the pulling rope is realized, the lifting plate is vertically lifted under the limiting of the sliding assembly, the net rack body lifting and unloading operation can be realized, and the net rack body does not shake during installation, and is more accurately and conveniently installed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structure installation, in particular to a large-area net rack lifting and unloading system and its construction forming method. BACKGROUND

[0002] At present, the feasible hoisting methods of steel net rack structure mainly include the following three kinds: first, full-dress scaffolding is erected, or partial sliding scaffolding is combined with full-dress scaffolding for assembly in the air; second, the ground is scattered and assembled, and then the pieces are lifted; third, the ground is assembled and then the whole is lifted, among which the third method has the highest construction efficiency.

[0003] Referring to the Chinese patent with the patent name of "A large-volume steel net rack whole lifting device and construction method" (patent publication number: CN112576044A, patent publication date: 2021.03.30), a lifting support column is arranged outside the edge support structure column, a lifting beam frame is supported and installed between the lifting support columns, the lifting beam frame is connected with the lower chord preset lifting point of the net rack through a hydraulic lifter, and the lifting support column is connected with the outer lower chord preset lifting point of the net rack through a hand-operated hoist. The steps of the construction method are to determine the initial offset of the X-axis and Y-axis; install the lifting support column and the lifting beam frame; install the hydraulic lifter and the hand-operated hoist and connect them with the preset lifting point of the net rack; position and fix the net rack after lifting and adjusting; the present application reduces the reserved installation space by arranging the lifting support column and the lifting beam frame outside the edge support structure column, improves the overall stability of the net rack; the hydraulic lifter and the hand-operated hoist are used to lift the net rack, which reduces the lifting control factors, facilitates adjustment, and improves the construction efficiency; the lifting support column and the lifting beam frame are arranged on the outer side of the net rack, which facilitates disassembly and has high disassembly efficiency.

[0004] However, based on the above operation process, the existing net rack still needs personnel to fix the bolts after being lifted to the installation position, so that the subsequent disassembly and installation operations of the net rack are complex, and the force borne by the net rack during the lifting operation process is large, which not only requires more lifting equipment, but also requires support operation at the bottom, so that the lifting and unloading operation of the large-area net rack is not convenient. Therefore, the present application provides a large-area net rack lifting and unloading system and its construction forming method. SUMMARY

[0005] To address the shortcomings of existing technologies, this invention provides a lifting and unloading system for ultra-large area space frames and its construction and forming method. This solves the problem that existing space frames, after being lifted to the installation position, still require personnel to secure them with bolts, making subsequent disassembly and installation complex. Furthermore, the lifting process of the entire space frame involves significant forces, requiring not only numerous lifting devices but also support at its base, making the lifting and unloading of ultra-large area space frames inconvenient.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lifting and unloading system for an ultra-large area space frame, comprising a bottom support frame, a top support frame mounted on the top of the bottom support frame, a lifting mechanism inside the bottom support frame to raise and lower the space frame body in the vertical direction, the lifting mechanism including a drive motor mounted on the side of the bottom support frame, one end of the output shaft of the drive motor being fixedly connected to a drive shaft via a coupling, one end of the drive shaft being rotated by a meshing assembly, and a symmetrical fixed plate being installed inside the bottom support frame, the opposite side of the auxiliary drive shaft rotating with respect to the fixed plate, a take-up roller being fixedly mounted on the surface of the auxiliary drive shaft, and the surface of the take-up roller being driven by a fixed pull rope to move the lifting plate vertically, and the side of the lifting plate sliding on the side of the bottom support frame via a sliding assembly, the surface of the pull rope being supported by a support assembly mounted on the top support frame, and one side of the lifting plate being driven by a lifting assembly to move the space frame body, and an installation unit being provided on the surface of the space frame body to realize the installation operation of the two space frame bodies.

[0007] Preferably, the meshing assembly includes a worm gear fixedly mounted on the extension end of the drive shaft, and a worm wheel fixedly mounted on the surface of the auxiliary drive shaft. The worm gear meshes with the surface of the worm wheel and drives the worm wheel to rotate.

[0008] Preferably, the sliding assembly includes a slider fixedly installed on the side of the lifting plate, and the side of the lifting plate is provided with a sliding groove, and the slider performs a vertical sliding operation inside the sliding groove.

[0009] Preferably, the support assembly includes a support rod rotatably mounted on a top support frame, a support roller is fixedly mounted on the surface of the support rod, and the surface of the support roller contacts the pull rope to achieve the support operation of the pull rope.

[0010] Preferably, the lifting assembly includes a lifting block installed on one side of the lifting plate, and a protrusion is installed on the side of the grid body, with the top of the lifting block and the bottom of the protrusion in adaptive contact.

[0011] Preferably, the mounting unit comprises a wrapping block mounted on one side of the net rack body, one side of the wrapping block is provided with a mounting slot, the top of the wrapping block is provided with an expansion slot and is communicated with the mounting slot, and the inside of the expansion slot enables the inclined ladder block to move horizontally through the elastic assembly.

[0012] Preferably, the mounting unit further comprises two symmetrical connecting plates, the connecting plates are mounted on the other side of the net rack body, one side of the connecting plate is provided with a connecting column, the bottom end of the connecting column is fixedly provided with a lower ladder-shaped block, the top of the lower ladder-shaped block is provided with an upper ladder-shaped block, the upper ladder-shaped block penetrates through the connecting column and can slide relative to the connecting column.

[0013] Preferably, the elastic assembly comprises a baffle fixedly installed on the inner wall of the expansion slot, the inclined ladder block is fixedly provided with two symmetrical fixed rods on one side, one end of the fixed rod penetrates through the baffle and can slide relative to the baffle, the surface of the fixed rod is sleeved with a counter spring, and the two ends of the counter spring are fixed to the opposite sides of the baffle and the inclined ladder block.

[0014] Preferably, the lower ladder-shaped block on one net rack body extends from top to bottom into the mounting slot of the other wrapping block to complete the mounting operation of the two net rack bodies.

[0015] The application further discloses a construction forming method of the lifting and unloading system of the super-large-area net rack, and specifically comprises the following steps:

[0016] S1, first, the net rack body is lifted through the two symmetrical bottom supporting frames, the rotation of the driving shaft is driven by the driving motor, the driving shaft drives the rotation of the driven shaft through the worm and the worm gear, and the driven shaft drives the rotation of the winding roller, so that the winding operation of the pulling rope is realized, and the lifting plate is vertically lifted under the limiting of the sliding assembly;

[0017] S2, at this time, the two side protrusions on the net rack body are placed in the grooves of the lifting blocks, the lifting plate is moved upwards and is above the installed net rack, and the lower ladder-shaped block on the net rack body to be installed is aligned with the wrapping block on the installed net rack in the vertical direction through the movement adjustment;

[0018] S3, the lower ladder-shaped block is moved downwards and presses the inclined ladder block to move along the direction of the fixed rod, so that the lower ladder-shaped block moves into the mounting slot of the wrapping block, and the mounting operation of the two net rack bodies is completed.

[0019] S4, when disassembling is needed, continue to press the lower trapezoidal block downward, so that the upper trapezoidal block contacts the connecting plate and continues to press the lower trapezoidal block, so that the upper trapezoidal block extrudes the inclined ladder block and moves along the direction of the fixed rod into the installation slot, then the lower trapezoidal block and the upper trapezoidal block are in contact, at this time, the net rack body is lifted upward, so that the lower trapezoidal block and the upper trapezoidal block are separated from the installation slot, and the disassembly operation of the net rack body is completed.

[0020] Advantages

[0021] The application provides a large-area net rack lifting and unloading system and a construction forming method thereof.

[0022] (1) The large-area net rack lifting and unloading system and the construction forming method thereof are provided with a lifting mechanism, a driving motor drives the rotation of a driving shaft, the driving shaft drives the rotation of a secondary driving shaft through a worm and a worm wheel, and the secondary driving shaft drives the rotation of a winding roller, so that the winding operation of the pulling rope is realized, and the lifting plate is vertically lifted under the limiting of the sliding assembly, so that the net rack body can be lifted and unloaded, and the net rack body does not shake during installation, and is more accurately and conveniently installed.

[0023] (2) The large-area net rack lifting and unloading system and the construction forming method thereof are provided with an installation unit, the lower trapezoidal block on the net rack body to be installed is aligned with the wrapping block on the installed net rack body in the vertical direction through movement adjustment, the lower trapezoidal block moves downward and extrudes the inclined ladder block to move along the direction of the fixed rod, the lower trapezoidal block moves into the installation slot of the wrapping block, the installation operation of the two net rack bodies is completed, and the rapid installation can be completed in the alignment and placement operation, manual bolt fixing operation is not needed, and the efficiency of net rack installation is improved.

[0024] (3) The large-area net rack lifting and unloading system and the construction forming method thereof are provided with an installation unit, when disassembling, the lower trapezoidal block is continuously pressed downward, the upper trapezoidal block contacts the connecting plate and continuously presses the lower trapezoidal block, so that the upper trapezoidal block extrudes the inclined ladder block and moves along the direction of the fixed rod into the installation slot, then the lower trapezoidal block and the upper trapezoidal block are in contact, at this time, the net rack body is lifted upward, so that the lower trapezoidal block and the upper trapezoidal block are separated from the installation slot, so that the subsequent disassembly operation is completed, the wear of the net rack body is reduced, the installation and disassembly efficiency is improved, and the product is more convenient and accurate to operate. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is an external three-dimensional structure diagram of the application;

[0026] Figure 2The exploded view of the three-dimensional structure of the sliding assembly of the present application;

[0027] Figure 3 The three-dimensional structure of the Figure 2 The enlarged view of the local structure at A in the present application;

[0028] Figure 4 The three-dimensional structure of the lifting mechanism of the present application;

[0029] Figure 5 The three-dimensional structure of the engaging assembly of the present application;

[0030] Figure 6 The three-dimensional structure of the lifting plate of the present application;

[0031] Figure 7 The exploded view of the three-dimensional structure of the wrapping block in the installation unit of the present application;

[0032] Figure 8 The three-dimensional structure of the Figure 7 The enlarged view of the local structure at B in the present application;

[0033] Figure 9 The three-dimensional structure of the connecting plate in the installation unit of the present application;

[0034] Figure 10 The three-dimensional structure of the Figure 9 The enlarged view of the local structure at C in the present application.

[0035] In the figure: 1 - bottom support frame, 2 - top support frame, 3 - lifting mechanism, 31 - driving motor, 32 - driving rotating shaft, 33 - engaging assembly, 33-1 - worm, 33-2 - worm gear, 34 - sliding assembly, 34-1 - sliding block, 34-2 - sliding groove, 35 - supporting assembly, 35-1 - supporting rod, 35-2 - supporting roller, 36 - lifting assembly, 36-1 - lifting block, 36-2 - protruding block, 37 - installation unit, 37-1 - wrapping block, 37-2 - installation groove, 37-3 - telescopic groove, 37-4 - elastic assembly, 37-41 - baffle, 37-42 - fixed rod, 37-43 - resisting spring, 37-5 - inclined ladder block, 37-6 - connecting plate, 37-7 - connecting column, 37-8 - lower ladder-shaped block, 37-9 - upper ladder-shaped block, 38 - secondary rotating shaft, 39 - fixed plate, 310 - winding roller, 311 - pulling rope, 312 - lifting plate, 4 - net frame body. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0037] Please refer to Figures 1-5 The present application provides two technical solutions:

[0038] Embodiment one

[0039] A large-area net rack lifting and unloading system, comprising a bottom support frame 1, which can move to facilitate the lifting operation of the net rack at different positions, a top support frame 2 is installed on the top of the bottom support frame 1, a pair of outwardly extending and relatively symmetrical support plates are installed on one side of the top support frame 2, and a lifting mechanism 3 is arranged inside the bottom support frame 1 to make the net rack body 4 rise and fall in the vertical direction;

[0040] The lifting mechanism 3 comprises a driving motor 31 installed on the side of the bottom support frame 1, the driving motor 31 is electrically connected with an external power supply, the driving motor 31 is a three-phase asynchronous motor, the driving motor 31 realizes start-stop operation through external personnel operating a control panel, one end of the output shaft of the driving motor 31 is fixedly connected with a driving shaft 32 through a shaft coupling, one end of the driving shaft 32 is connected with a secondary driving shaft 38 through a meshing assembly 33, a pair of symmetrical fixed plates 39 are installed inside the bottom support frame 1, the secondary driving shaft 38 rotates on the opposite side of the fixed plate 39, a winding roller 310 is fixedly installed on the surface of the secondary driving shaft 38, the surface of the winding roller 310 drives a lifting plate 312 to move vertically through a fixed pulling rope 311, the side surface of the lifting plate 312 slides on the side surface of the bottom support frame 1 through a sliding assembly 34, the surface of the pulling rope 311 is supported through a supporting assembly 35 arranged on the top support frame 2, one side of the lifting plate 312 drives the net rack body 4 to move through a lifting assembly 36, and a mounting unit 37 is arranged on the surface of the net rack body 4 to realize the mounting operation of two net rack bodies 4.

[0041] The lifting mechanism 3 is arranged, the driving motor 31 drives the driving shaft 32 to rotate, the driving shaft 32 cooperates with the worm 33-1 and the worm gear 33-2 to drive the secondary driving shaft 38 to rotate, the secondary driving shaft 38 drives the winding roller 310 to rotate, the winding operation of the pulling rope 311 is realized, the lifting plate 312 is lifted vertically under the limitation of the sliding assembly 34, the lifting and unloading operation of the net rack body 4 is realized, the net rack body 4 does not shake during installation, and the installation is more accurate and convenient.

[0042] In the embodiment of the present application, the meshing assembly 33 comprises a worm 33-1 fixedly installed on the extension end of the driving shaft 32, and a worm wheel 33-2 fixedly installed on the surface of the driven shaft 38, the worm 33-1 meshes with the surface of the worm wheel 33-2 and drives the worm wheel 33-2 to rotate.

[0043] In the embodiment of the present application, the sliding assembly 34 comprises a sliding block 34-1 fixedly installed on the side surface of the lifting plate 312, and a sliding groove 34-2 formed in the side surface of the lifting plate 312, the sliding block 34-1 is capable of sliding in the vertical direction inside the sliding groove 34-2.

[0044] In the embodiment of the present application, the supporting assembly 35 comprises a supporting rod 35-1 rotatably installed on the top support frame 2, and a supporting roller 35-2 fixedly installed on the surface of the supporting rod 35-1, the surface of the supporting roller 35-2 is in contact with the pulling rope 311 and capable of supporting the pulling rope 311.

[0045] In the embodiment of the present application, the lifting assembly 36 comprises a lifting block 36-1 installed on one side of the lifting plate 312, and a protruding block 36-2 installed on the side surface of the net rack body 4, and the top of the lifting block 36-1 is in adaptive contact with the bottom of the protruding block 36-2.

[0046] In the embodiment of the present application, the installation unit 37 comprises a wrapping block 37-1 installed on one side of the net rack body 4, an installation groove 37-2 formed on one side of the wrapping block 37-1, an expansion groove 37-3 formed on the top of the wrapping block 37-1 and in communication with the installation groove 37-2, and an elastic assembly 37-4 arranged inside the expansion groove 37-3 and capable of moving the inclined ladder block 37-5 horizontally, the top of the inclined ladder block 37-5 is inclined, and the bottom of the inclined ladder block 37-5 is flat.

[0047] The installation unit 37 is arranged, the lower ladder block 37-8 on the net rack body 4 to be installed is aligned with the wrapping block 37-1 on the net rack body 4 that has been installed in the vertical direction by moving adjustment, the lower ladder block 37-8 moves downward and presses the inclined ladder block 37-5 to move along the direction of the fixing rod 37-42, the lower ladder block 37-8 moves into the installation groove 37-2 of the wrapping block 37-1, and the installation of the two net rack bodies 4 is completed, so that the alignment operation can be completed quickly without manual bolt fixing operation, and the efficiency of the net rack installation is improved.

[0048] In the embodiment of the application, the mounting unit 37 further comprises two symmetrical connecting plates 37-6 mounted on the other side of the net rack body 4, one side of each connecting plate 37-6 is provided with a connecting column 37-7, the bottom end of the connecting column 37-7 is fixedly provided with a lower trapezoidal block 37-8, the top of the lower trapezoidal block 37-8 is flat, the bottom of the inclined ladder block 37-5 is inclined, the top of the lower trapezoidal block 37-8 is provided with an upper trapezoidal block 37-9, the top of the upper trapezoidal block 37-9 is inclined, and the bottom of the inclined ladder block 37-5 is flat, and the upper trapezoidal block 37-9 penetrates through the connecting column 37-7 and can slide relative to the connecting column 37-7.

[0049] The mounting unit 37 is provided, and when disassembling, the lower trapezoidal block 37-8 is continuously pressed downward, the upper trapezoidal block 37-9 is in contact with the connecting plate 37-6, and the lower trapezoidal block 37-8 is continuously pressed, so that the upper trapezoidal block 37-9 extrudes the inclined ladder block 37-5 and moves along the direction of the fixing rod 37-42 into the mounting groove 37-2, and then the lower trapezoidal block 37-8 and the upper trapezoidal block 37-9 are in contact, at this time, the net rack body 4 is lifted upward, the lower trapezoidal block 37-8 and the upper trapezoidal block 37-9 are separated from the mounting groove 37-2, and the subsequent disassembly operation is completed, the wear of the net rack body 4 is reduced, the installation and disassembly efficiency is improved, and the product is more convenient and accurate to operate.

[0050] In the embodiment of the application, the elastic assembly 37-4 comprises a baffle 37-41 fixedly installed on the inner wall of the telescopic groove 37-3, the inclined ladder block 37-5 is fixedly provided with two symmetrical fixing rods 37-42 on one side, one end of each fixing rod 37-42 penetrates through the baffle 37-41 and can slide relative to the baffle 37-41, a resisting spring 37-43 is sleeved on the surface of the fixing rod 37-42, the resisting spring 37-43 keeps the outward extension operation of the inclined ladder block 37-5 under no other external force, and the two ends of the resisting spring 37-43 are fixed to the opposite sides of the baffle 37-41 and the inclined ladder block 37-5.

[0051] In the embodiment of the application, the lower trapezoidal block 37-8 on one net rack body 4 extends from top to bottom into the mounting groove 37-2 of the other wrapping block 37-1 to complete the installation operation of the two net rack bodies 4.

[0052] Embodiment two

[0053] Compared with the embodiment one, the difference lies in that:

[0054] The application further discloses a construction forming method of the lifting and unloading system of the super-large-area net rack, and specifically comprises the following steps:

[0055] S1, first by the relative symmetry of the bottom support frame 1 to the net body 4 is lifted, using the drive motor 31 drive shaft 32 rotation, so that the drive shaft 32 with worm 33-1 and worm 33-2 drive the rotation of the secondary drive shaft 38, and the secondary drive shaft 38 drive winding roller 310 rotation, so as to realize the winding operation of the rope 311, and drive the lifting plate 312 in the sliding assembly 34 limit of the vertical lifting operation;

[0056] S2, at this time the two side bumps 36-2 on the net body 4 are placed in the lifting block 36-1 recess, in the lifting plate 312 moves up, moves to the installed net above, through the movement of the adjustment so that the need to install the lower trapezoidal block 37-8 on the net body 4 and the installed net body 4 on the wrapping block 37-1 in the vertical direction alignment;

[0057] S3, so that the lower trapezoidal block 37-8 moves down and extrudes the inclined ladder block 37-5 along the direction of the fixed rod 37-42 to move, so that the lower trapezoidal block 37-8 moves to the installation slot 37-2 of the wrapping block 37-1, completing the installation of two net bodies 4;

[0058] S4, when disassembly is needed, continue to press the lower trapezoidal block 37-8, so that the upper trapezoidal block 37-9 contacts the connecting plate 37-6 and continues to press the lower trapezoidal block 37-8, so that the upper trapezoidal block 37-9 extrudes the inclined ladder block 37-5 along the direction of the fixed rod 37-42 to move into the installation slot 37-2, and then the lower trapezoidal block 37-8 and the upper trapezoidal block 37-9 are contacted, at this time the net body 4 is lifted up, so that the lower trapezoidal block 37-8 and the upper trapezoidal block 37-9 are separated from the installation slot 37-2, completing the disassembly of the net body 4.

[0059] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0060] It should be noted that in this paper, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0061] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A lifting and unloading system for super-large area net rack, comprising a bottom support frame (1), a top support frame (2) is installed on the top of the bottom support frame (1), characterized in that: The bottom support frame (1) is internally provided with a lifting mechanism (3) to make the net frame body (4) vertically ascend and descend; The lifting mechanism (3) comprises a driving motor (31) mounted on the side surface of the bottom support frame (1), one end of the output shaft of the driving motor (31) is fixedly connected with a driving rotating shaft (32) through a shaft coupling, one end of the driving rotating shaft (32) is connected with a sub-rotating shaft (38) through a meshing assembly (33) to make the sub-rotating shaft (38) rotate, the inside of the bottom support frame (1) is internally provided with a pair of symmetrical fixed plates (39), the sub-rotating shaft (38) rotates on the opposite side of the fixed plate (39), a winding roller (310) is fixedly mounted on the surface of the sub-rotating shaft (38), the surface of the winding roller (310) drives a lifting plate (312) to move in the vertical direction through a fixed pulling rope (311), the side surface of the lifting plate (312) slides on the side surface of the bottom support frame (1) through a sliding assembly (34), the surface of the pulling rope (311) is supported through a supporting assembly (35) arranged on the top support frame (2), one side of the lifting plate (312) drives the net frame body (4) to move through a lifting assembly (36), and the surface of the net frame body (4) is provided with a mounting unit (37) to realize the mounting operation of two net frame bodies (4); The lifting assembly (36) comprises a lifting block (36-1) mounted on one side of the lifting plate (312), and the side surface of the net frame body (4) is provided with a protruding block (36-2), and the top of the lifting block (36-1) is in adaptive contact with the bottom of the protruding block (36-2); The mounting unit (37) comprises a wrapping block (37-1), the wrapping block (37-1) is mounted on one side of the net frame body (4), one side of the wrapping block (37-1) is provided with a mounting groove (37-2), the top of the wrapping block (37-1) is provided with an expansion groove (37-3) and is in communication with the mounting groove (37-2), and the inside of the expansion groove (37-3) makes the inclined ladder block (37-5) move horizontally through an elastic assembly (37-4); The mounting unit (37) further comprises a pair of symmetrical connecting plates (37-6), the connecting plates (37-6) are mounted on the other side of the net frame body (4), one side of the connecting plate (37-6) is provided with a connecting column (37-7), the bottom end of the connecting column (37-7) is fixedly provided with a lower ladder-shaped block (37-8), the top of the lower ladder-shaped block (37-8) is provided with an upper ladder-shaped block (37-9), and the upper ladder-shaped block (37-9) penetrates through the connecting column (37-7) and can slide relative to the connecting column (37-7). The elastic assembly (37-4) comprises a baffle (37-41) fixedly installed on the inner wall of the telescopic groove (37-3), one side of the inclined ladder block (37-5) is fixedly installed with symmetric fixed rods (37-42), one end of the fixed rod (37-42) penetrates through the baffle (37-41) and is slidable relative to the baffle (37-41), the surface of the fixed rod (37-42) is sleeved with a resisting spring (37-43), and both ends of the resisting spring (37-43) are fixed to the baffle (37-41) and the opposite side of the inclined ladder block (37-5).

2. The lifting and unloading system of a super-large area space truss according to claim 1, characterized in that: The engaging assembly (33) comprises a worm (33-1) fixedly installed on the extension end of the driving rotating shaft (32), and the surface of the auxiliary rotating shaft (38) is fixedly installed with a worm wheel (33-2); the surface of the worm (33-1) is engaged with the surface of the worm wheel (33-2) and drives the worm wheel (33-2) to rotate.

3. The system for lifting and unloading of a super large area grid according to claim 2, characterized in that: The sliding assembly (34) comprises a sliding block (34-1) fixedly installed on the side of the lifting plate (312), and the side of the lifting plate (312) is provided with a sliding groove (34-2); the sliding block (34-1) is slidable in the vertical direction in the sliding groove (34-2).

4. The system for lifting and unloading of a super large area grid according to claim 3, characterized in that: The supporting assembly (35) comprises a supporting rod (35-1) rotatably installed on the top supporting frame (2), and the surface of the supporting rod (35-1) is fixedly installed with a supporting roller (35-2); the surface of the supporting roller (35-2) is in contact with the pulling rope (311) and supports the pulling rope (311).

5. The system for lifting and unloading of a super large area grid according to claim 4, characterized in that: The lower ladder-shaped block (37-8) on one net rack body (4) extends from top to bottom into the mounting groove (37-2) of the other wrapping block (37-1), thereby completing the installation of the two net rack bodies (4).

6. The construction forming method of the lifting and unloading system of the super-large area space truss according to claim 5, characterized in that: Specifically comprising the following steps: S1, first, the net rack body (4) is lifted through the symmetric bottom supporting frame (1), the driving rotating shaft (32) is driven to rotate by the driving motor (31), the driving rotating shaft (32) cooperates with the worm (33-1) and the worm wheel (33-2) to drive the auxiliary rotating shaft (38) to rotate, the auxiliary rotating shaft (38) drives the winding roller (310) to rotate, thereby realizing the winding operation of the pulling rope (311), and the lifting plate (312) is lifted vertically under the limitation of the sliding assembly (34); S2, at this time, the two side protrusions (36-2) on the net rack body (4) are placed in the recesses of the lifting blocks (36-1), the lifting plate (312) moves upwards and moves above the installed net rack, and the lower ladder-shaped block (37-8) on the net rack body (4) to be installed is aligned with the wrapping block (37-1) on the installed net rack body (4) in the vertical direction through the movement adjustment; S3, the lower ladder-shaped block (37-8) moves downwards and extrudes the inclined ladder block (37-5) to move along the direction of the fixed rod (37-42), so that the lower ladder-shaped block (37-8) moves into the mounting groove (37-2) of the wrapping block (37-1), thereby completing the installation of the two net rack bodies (4). S4, when disassembly is needed, continue to press the lower trapezoidal block (37-8) downward, so that the upper trapezoidal block (37-9) is in contact with the connecting plate (37-6) and continues to press the lower trapezoidal block (37-8), so that the upper trapezoidal block (37-9) extrudes the inclined ladder block (37-5) and moves in the direction of the fixed rod (37-42) into the installation slot (37-2), and then the lower trapezoidal block (37-8) and the upper trapezoidal block (37-9) are in contact. At this time, the net rack body (4) is lifted upward, so that the lower trapezoidal block (37-8) and the upper trapezoidal block (37-9) are both separated from the installation slot (37-2), and the disassembly operation of the net rack body (4) is completed.

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