Steel structure net rack mounting device and method

Abstract

The invention discloses a steel structure net rack mounting device and method, and belongs to the technical field of steel structures. A steel structure net rack mounting device comprises a mounting plate and further comprises two sets of lifting blocks symmetrically arranged on the two sides of the mounting plate, and lifting holes are formed in the lifting blocks; the two sets of steel strands are symmetrically arranged on the two sides of the mounting plate, each set of steel strands comprises two steel strands, and the end, away from the mounting plate, of each steel strand is connected with a positioning piece used for fixing a net rack piece; the tightening assembly is fixedly arranged on the lower side of the mounting plate and is used for tensioning the two groups of steel strands; the steel structure net rack can be conveniently and rapidly clamped and positioned, the steel structure net rack can be rapidly hoisted and installed, the clamping effect on the net rack is improved, the net rack is prevented from being separated from the clamp in the hoisting process, and therefore the installation efficiency and the installation effect of the net rack are improved.

Description

Technical Field

[0001] This invention relates to the field of steel structure technology, and in particular to a steel structure space frame installation device and method. Background Technology

[0002] Space frame structures are currently developing rapidly. They are spatial structures composed of multiple members connected by bolts and balls at nodes in a grid pattern. Due to their advantages such as light weight, high stiffness, and good seismic performance, they are widely used in buildings such as stadiums, theaters, exhibition halls, stadiums, and airports. This type of structure typically has a large overall span, meeting the structural requirements of various large-span public buildings.

[0003] The starting frame of a large-span steel space frame is a key and challenging aspect that needs to be controlled during the entire space frame construction. In specific construction operations, multiple people need to work together simultaneously. After assembling two sets of large-span steel space frame starting frames on the ground, two cranes are needed to lift the two assembled steel space frame starting frames and connect them in the air to complete the assembly. However, the stability of the cranes during lifting is relatively low, and they are prone to significant swaying. This can increase the difficulty of the lifting and docking process of the two sets of large-span steel space frame starting frames, prolong the aerial assembly time, and reduce work efficiency.

[0004] In the prior art, patent application number CN202310135385.1 discloses a rapid installation device for a starting frame of a large-span steel structure space frame, enabling rapid docking and installation of the starting frame in mid-air. However, there are still defects in its actual use. The device requires adjusting the lateral adjustment mechanism according to the width of the starting frame of the large-span steel structure space frame, and then controlling the clamping mechanism to clamp and lift the steel structure space frame. The operation is relatively cumbersome. Moreover, the clamping mechanism clamps the space frame rods through clamping blocks, resulting in poor clamping effect. The space frame is prone to loosening and detaching from the clamping mechanism, affecting the subsequent lifting and installation effect of the steel structure space frame. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a steel structure space frame installation device and method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A steel structure space frame installation device includes a mounting plate and further includes: Lifting blocks, wherein two sets of lifting blocks are provided and symmetrically arranged on both sides of the mounting plate, and lifting holes are provided on the lifting blocks; The steel strands are arranged in two sets symmetrically on both sides of the mounting plate, with two strands in each set. Each strand has a positioning element for fixing the space frame component connected to its end furthest from the mounting plate. A tightening assembly, which is fixed to the underside of the mounting plate, is used to tighten the two sets of steel strands.

[0007] Preferably, the positioning element includes a first positioning ring connected to the end of the steel strand away from the mounting plate and a second positioning ring rotatably connected to the inner wall of the first positioning ring via a pin. The first positioning ring and the second positioning ring have the same structure, and the second positioning ring is staggered with the first positioning ring.

[0008] Preferably, the first positioning ring includes an arc-shaped shell, a limiting plate slidably connected within the arc-shaped shell, a first elastic element disposed between the limiting plate and the closed end of the arc-shaped shell, an arc-shaped rod connected to the side of the limiting plate away from the first elastic element and slidably disposed with the arc-shaped shell, and a lever disposed at the end of the arc-shaped rod away from the limiting plate. The arc-shaped rod is provided with a limiting component. When the arc-shaped rod is stretched out from within the arc-shaped shell, it and the arc-shaped shell enclose a positioning area for covering the mesh frame component.

[0009] Preferably, the limiting component includes a limiting groove formed on the arc-shaped rod, a stop bar slidably connected in the limiting groove, and a second elastic element disposed between the stop bar and the inner wall of the limiting groove, wherein the stop bar is provided with a pressing inclined surface that moves against the arc-shaped shell.

[0010] Preferably, an arc-shaped rack plate is fixed on the arc-shaped rod inside the first positioning ring, and a drive gear is rotatably connected to the arc-shaped housing of the first positioning ring through a bearing. A threaded rod that is threadedly connected to the arc-shaped housing is slidably connected to the drive gear. An arc-shaped plate that slides in the arc-shaped housing is provided at the end of the threaded rod. A retaining tooth is provided on the arc-shaped plate, and a retaining groove that is circumferentially distributed and engages with the retaining tooth is provided on the pin.

[0011] Preferably, a guide bar is fixed on the drive gear, and a guide groove for sliding of the guide bar is formed along the axial direction of the threaded rod.

[0012] Preferably, the tightening assembly includes two side plates fixed to the bottom side of the mounting plate, two screws rotatably disposed between the two side plates, a sleeve threadedly connected to the screws, driven gears fixed on the screws, and a drive motor disposed on one of the side plates and connected to the screws. The driven gears on the two screws mesh with each other, and the steel strand passes through the sleeve, with the steel strand slidingly disposed with respect to the sleeve.

[0013] Preferably, a guide rod is fixedly provided on the center line of the side plate, and the sleeve is slidably connected to the guide rod. The two sleeves are symmetrically distributed on both sides of the central axis of the guide rod, and the bottom of one of the sleeves is provided with a movable groove for the movement of the other sleeve.

[0014] This invention also discloses a method for installing a steel structure space frame, including the steel structure space frame installation device described above, and further including the following steps: S1: When using the device, the operator hangs the hook of the crane into the lifting hole of the lifting block, thereby lifting the mounting plate that is fixedly connected to the lifting block by the crane. Then the operator pulls the steel strands on both sides of the mounting plate to limit and fix the positioning parts at the ends of the steel strands to the grid frame. S2: When using the positioning component, the first positioning ring and the second positioning ring are rotated at different angles according to the connection of the outer rod of the bolt ball, so that the rod is placed between the included angle of the first positioning ring and the second positioning ring. Then, by moving the lever, the lever drives the arc rod to slide in the arc shell until the stop bar on the arc rod moves out of the arc shell. The stop bar moves out of the limiting groove under the elastic force of the second elastic element. The stop bar restricts the arc rod from moving back under the elastic force of the first elastic element, thereby realizing the bolt ball locking of the positioning component on the space frame component. S3: When the arc-shaped rod inside the first positioning ring moves inside the arc-shaped housing, the arc-shaped rack plate on the arc-shaped rod meshes with the drive gear inside the arc-shaped housing. The rotation of the drive gear will drive the threaded rod to rotate through the guide bar. Since the threaded rod is threaded with the arc-shaped housing, the threaded rod drives the arc-shaped plate to move when it rotates, causing the arc-shaped plate to move towards the pin shaft. Finally, the locking teeth on the arc-shaped plate engage with the locking groove on the pin shaft, thereby locking the first positioning ring and the second positioning ring, limiting the twisting between the first positioning ring and the second positioning ring during lifting, and preventing excessive shaking of the space frame components. S4: Subsequently, the crane lifts the mounting plate. The mounting plate lifts the space frame components on both sides through the steel strands and positioning components. When the space frame components on both sides are lifted to a certain height, the drive motor is controlled to run, causing the output end of the drive motor to drive one of the screws to rotate. This screw is driven by a driven gear meshing with the driven gear on the other screw, causing both screws to rotate. When the two screws rotate, their outer sleeves move, causing the two sleeves to move towards each other. When the sleeves move, they exert a force on the steel strands, causing the steel strands to pull the space frame components closer to each other through the positioning components, thereby realizing the docking and installation of the space frame components on both sides.

[0015] Compared with the prior art, the present invention provides a steel structure space frame installation device and method, which has the following beneficial effects: The steel structure space frame installation device and method facilitates quick clamping and positioning of the steel structure space frame using steel strands and positioning components, enabling rapid lifting and installation of the steel structure space frame, improving installation efficiency, enhancing the clamping effect, and preventing the space frame from detaching from the positioning components during lifting, thereby ensuring the safety of lifting the space frame.

[0016] 2. The steel structure space frame installation device and method, through the rotational setting of the first and second positioning rings in the positioning components, allows the first and second positioning rings to rotate at different angles according to the connection of the outer rod of the bolt ball, so that the rod is placed between the included angle of the first and second positioning rings. The rod and the positioning rings are locked together, and the movement of the positioning rings is restricted by the rod. The first and second positioning rings clamp the space frame more firmly, prevent the space frame from falling off, clamp more quickly, and improve the installation efficiency of the space frame.

[0017] 3. The steel structure space frame installation device and method, when the arc-shaped rod in the first positioning ring moves within the arc-shaped shell, the arc-shaped rack plate on the arc-shaped rod meshes with the drive gear inside the arc-shaped shell. The rotation of the drive gear drives the threaded rod to rotate through the guide bar. Since the threaded rod is threaded with the arc-shaped shell, the threaded rod drives the arc-shaped plate to move when it rotates, causing the arc-shaped plate to move towards the pin shaft. Finally, the locking teeth on the arc-shaped plate engage with the locking groove on the pin shaft, realizing the locking between the first positioning ring and the second positioning ring. This restricts the twisting between the first positioning ring and the second positioning ring during lifting, prevents excessive shaking of the space frame components, improves the stability of the space frame during lifting and installation, and facilitates the rapid installation of the space frame. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 For the present invention Figure 1 A partially enlarged structural diagram of section A in the middle; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 For the present invention Figure 3 A partially enlarged structural diagram of section B in the middle; Figure 5 This is a schematic diagram of the structure of the sleeve during movement according to the present invention; Figure 6 This is a schematic diagram of the positioning component of the present invention; Figure 7 This is a schematic diagram of the positioning member clamping the space frame member of the present invention; Figure 8 This is a cross-sectional structural diagram of the arc-shaped rod in the positioning component of the present invention in the pulled-out state; Figure 9 For the present invention Figure 8 A partially enlarged structural diagram of section C in the middle; Figure 10 This is a schematic diagram of the external structure of the threaded rod of the present invention; Figure 11 This is a schematic diagram of the structure of the space frame component of the present invention; Figure 12 This is a schematic diagram of the tightening component of the present invention during operation; Figure 13 This is a cross-sectional schematic diagram of the arc-shaped shell of the present invention; Figure 14 This is a schematic cross-sectional view of the first positioning ring of the present invention; Figure 15 This is a schematic diagram of the structure when the space frame components of the present invention are connected.

[0019] In the diagram: 1. Mounting plate; 2. Lifting block; 201. Lifting hole; 3. Steel strand; 4. Positioning component; 401. First positioning ring; 4011. Arc-shaped shell; 4012. Limiting plate; 4013. First elastic element; 4014. Arc-shaped rod; 4015. Pulley; 402. Pin; 4021. Slot; 403. Second positioning ring; 5. Space frame component; 501. Bolt ball; 502. Rod body; 503. Fastener 6. Bolt; 7. Limiting groove; 601. Stop bar; 6011. Extrusion slope; 602. Second elastic element; 7. Side plate; 701. Screw; 702. Sleeve; 703. Driven gear; 704. Drive motor; 8. Guide rod; 9. Movable groove; 10. Arc-shaped rack plate; 11. Drive gear; 111. Threaded rod; 1111. Guide groove; 112. Arc plate; 1121. Clamping tooth; 113. Guide bar. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 limitations on this invention.

[0022] Example 1: Refer to Figure 1 , Figure 3 , Figure 7 , Figure 11 , Figure 12 and Figure 15 A steel structure space frame installation device includes an installation plate 1, and further includes: Lifting block 2, two sets of lifting blocks 2 are symmetrically arranged on both sides of the mounting plate 1, and lifting holes 201 are opened on the lifting block 2; Steel strands 3 are provided in two sets, symmetrically arranged on both sides of the mounting plate 1. Each set of steel strands 3 has two strands, and the end of each steel strand 3 furthest from the mounting plate 1 is connected to a positioning element 4 for fixing the space frame component 5; and The tightening assembly is fixed to the underside of the mounting plate 1 and is used to tighten the two sets of steel strands 3.

[0023] Specifically, when using the device, the operator hooks the crane hook into the lifting hole 201 of the lifting block 2, thereby lifting the mounting plate 1, which is fixedly connected to the lifting block 2, using the crane. Then, the operator pulls the steel strands 3 on both sides of the mounting plate 1, so that the positioning parts 4 at the ends of the steel strands 3 are fixed to the space frame parts 5. There is no need to adjust the distance of the positioning parts 4 according to the width of the space frame starting frame, making the operation simple and quick. This allows the steel structure space frame to be lifted and installed quickly. The positioning parts 4 can improve the clamping effect on the space frame and prevent the space frame from detaching from the clamps during the lifting process, thereby improving the installation efficiency and effect of the space frame. Subsequently, the crane lifts the mounting plate 1. The mounting plate 1 drives the space frame parts 5 on both sides to rise through the steel strands 3 and the positioning parts 4. When the space frame parts 5 on both sides are raised to a certain height, the tightening component is controlled to work, so that the steel strands 3 pull the space frame parts 5 closer to each other through the positioning parts 4, thereby realizing the docking installation of the space frame parts 5 on both sides.

[0024] Example 2: Refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 11 A steel structure space frame installation device, based on embodiment 1, further includes a positioning member 4 comprising a first positioning ring 401 connected to the end of the steel strand 3 away from the mounting plate 1 and a second positioning ring 403 rotatably connected to the inner wall of the first positioning ring 401 via a pin 402. The first positioning ring 401 and the second positioning ring 403 have the same structure, and the second positioning ring 403 is staggered with the first positioning ring 401.

[0025] Furthermore, the first positioning ring 401 includes an arc-shaped housing 4011, a limiting plate 4012 slidably connected within the arc-shaped housing 4011, a first elastic element 4013 disposed between the limiting plate 4012 and the closed end of the arc-shaped housing 4011, an arc-shaped rod 4014 connected to the side of the limiting plate 4012 away from the first elastic element 4013 and slidably disposed with the arc-shaped housing 4011, and a lever plate 4015 disposed at the end of the arc-shaped rod 4014 away from the limiting plate 4012. A limiting component is provided on the arc-shaped rod 4014. When the arc-shaped rod 4014 is stretched out from within the arc-shaped housing 4011, it and the arc-shaped housing 4011 enclose a positioning area for covering the mesh frame component 5.

[0026] Furthermore, the space frame component 5 is composed of several space frame connectors, each of which includes a bolt ball 501 and several rods 502 disposed on the bolt ball 501, with fastening bolts 503 disposed between the bolt ball 501 and the rods 502.

[0027] Specifically, when using the positioning component 4, based on the connection of the outer rod 502 of the bolt ball 501, the first positioning ring 401 and the second positioning ring 403 are rotated at different angles, so that the rod 502 is positioned between the included angle of the first positioning ring 401 and the second positioning ring 403. Then, by moving the lever 4015, the lever 4015 drives the arc-shaped rod 4014 to slide inside the arc-shaped housing 4011 until the stop bar 601 on the arc-shaped rod 4014 moves out of the arc-shaped housing 4011, and the limiting assembly on the arc-shaped rod 4014... The component can limit the arc-shaped rod 4014 from moving back under the elastic pull of the first elastic element 4013, thereby locking the positioning component 4 onto the space frame component 5, so that the positioning component 4 clamps the bolt ball 501, replacing the clamping method on the space frame rod 502. Through the cooperation of multiple rods 502 connected to the bolt ball 501 and the positioning ring, the multiple rods 502 restrict the movement of the positioning ring during the hoisting process, preventing the positioning component 4 from falling off and separating from the space frame component 5. It has strong applicability and is easy to meet the installation of steel structure space frames of different sizes.

[0028] Example 3: Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 14 A steel structure space frame installation device, based on embodiment 2, further includes a limiting component comprising a limiting groove 6 formed on an arc-shaped rod 4014, a stop rod 601 slidably connected in the limiting groove 6, and a second elastic element 602 disposed between the stop rod 601 and the inner wall of the limiting groove 6. The stop rod 601 is provided with a pressing inclined surface 6011 that moves against the arc-shaped housing 4011.

[0029] Specifically, when using the positioning component 4, the first positioning ring 401 and the second positioning ring 403 are rotated at different angles according to the connection of the outer rod 502 of the bolt ball 501, so that the rod 502 is placed between the included angle of the first positioning ring 401 and the second positioning ring 403. Then, by moving the lever 4015, the lever 4015 drives the arc rod 4014 to slide inside the arc shell 4011. During this process, the pressing slope 6011 of the outer stop bar 601 of the arc rod 4014 abuts against the inner wall of the arc shell 4011, and the stop bar 601 retracts into the limiting groove 6 until the stop bar 601 on the arc rod 4014 moves out of the arc shell 4011. The stop bar 601 moves out of the limiting groove 6 under the elastic force of the second elastic element 602. The stop bar 601 restricts the arc rod 4014 from moving back under the elastic force of the first elastic element 4013, thereby realizing the locking of the positioning component 4 on the grid component 5.

[0030] Example 4: Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 13 A steel structure space frame installation device, based on embodiment 3, further includes an arc-shaped rack plate 10 fixed on the arc-shaped rod 4014 inside the first positioning ring 401, a drive gear 11 rotatably connected to the arc-shaped housing 4011 of the first positioning ring 401 via a bearing, a threaded rod 111 slidably connected to the drive gear 11 and threadedly connected to the arc-shaped housing 4011, an arc-shaped plate 112 sliding in the arc-shaped housing 4011 at the end of the threaded rod 111, a locking tooth 1121 provided on the arc-shaped plate 112, and a locking groove 4021 circumferentially distributed and engaging with the locking tooth 1121 on the pin shaft 402.

[0031] Furthermore, a guide bar 113 is fixed on the drive gear 11, and a guide groove 1111 for sliding of the guide bar 113 is provided along its axial direction on the threaded rod 111.

[0032] Specifically, when using the positioning component 4, depending on the connection of the outer rod 502 of the bolt ball 501, the first positioning ring 401 and the second positioning ring 403 are rotated at different angles, so that the rod 502 is positioned between the included angle of the first positioning ring 401 and the second positioning ring 403. Then, by moving the lever 4015, the lever 4015 drives the arc-shaped rod 4014 to slide within the arc-shaped housing 4011 until the stop bar 601 on the arc-shaped rod 4014 moves out of the arc-shaped housing 4011. The stop bar 601 moves out of the limiting groove 6 under the elastic force of the second elastic element 602. The stop bar 601 restricts the arc-shaped rod 4014 from moving back under the elastic force of the first elastic element 4013, thereby achieving the locking of the positioning component 4 onto the grid component 5. The arc-shaped rod 4014 inside the first positioning ring 401 is within the arc-shaped housing 401. When the arc-shaped rod 4014 moves within the arc, the arc-shaped rack plate 10 on the arc-shaped rod 4014 meshes with the drive gear 11 inside the arc-shaped housing 4011. The rotation of the drive gear 11 will drive the threaded rod 111 to rotate through the guide bar 113. Since the threaded rod 111 is threaded with the arc-shaped housing 4011, the threaded rod 111 drives the arc plate 112 to move when it rotates, causing the arc plate 112 to move towards the pin shaft 402. Finally, the locking teeth 1121 on the arc plate 112 engage with the locking groove 4021 on the pin shaft 402, thereby locking the first positioning ring 401 and the second positioning ring 403. This restricts the twisting between the first positioning ring 401 and the second positioning ring 403 during lifting, prevents excessive shaking of the space frame component 5, improves the stability of the space frame component 5 during lifting and installation, and facilitates the rapid installation of the steel structure space frame.

[0033] Example 5: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 12 A steel structure space frame installation device, based on embodiment 4, further includes a tightening assembly comprising two side plates 7 fixed to the bottom side of the mounting plate 1, two screws 701 rotatably disposed between the two side plates 7, a sleeve 702 threadedly connected to the screws 701, a driven gear 703 fixed on the screws 701, and a drive motor 704 disposed on one of the side plates 7 and connected to the screws 701. The driven gears 703 on the two screws 701 mesh with each other, and the steel strand 3 passes through the sleeve 702, with the steel strand 3 slidably disposed with the sleeve 702.

[0034] Furthermore, a guide rod 8 is fixedly provided on the center line of the side plate 7, and a sleeve 702 is slidably connected to the guide rod 8. The two sleeves 702 are symmetrically distributed on both sides of the central axis of the guide rod 8, and a movable groove 9 for the movement of the other sleeve 702 is provided at the bottom of one of the sleeves 702.

[0035] Specifically, the mounting plate 1 is lifted by a crane. The mounting plate 1, via steel strands 3 and positioning components 4, lifts the space frame components 5 on both sides. When the space frame components 5 on both sides are raised to a certain height, the drive motor 704 is controlled to operate, causing its output to rotate one of the screws 701. This screw 701 is driven by a driven gear 703 meshing with the driven gear 703 on the other screw 701, causing both screws 701 to rotate. As the two screws 701 rotate, their outer... The sleeve 702 on the side moves, causing the two sleeves 702 to move towards each other. When the sleeves 702 move, they exert a force on the steel strand 3. Since the two sleeves 702 are symmetrically arranged on both sides of the central axis of the guide rod 8, the steel strand 3 is pulled by the positioning piece 4 to align and approach the two side grid members 5, preventing the two side grid members 5 from being pulled in different directions. This achieves the docking installation of the two side grid members 5. In addition, the two sleeves 702 can slide alternately to further tighten the steel strand 3, effectively increasing the pulling distance of the two side grid members 5.

[0036] The present invention also discloses a method for installing a steel structure space frame, including the above-mentioned steel structure space frame installation device, and further including the following steps: S1: When the device is in use, the operator hangs the hook of the crane into the lifting hole 201 of the lifting block 2, thereby lifting the mounting plate 1 which is fixedly connected to the lifting block 2 by the crane. Then the operator pulls the steel strands 3 on both sides of the mounting plate 1 so that the positioning parts 4 at the ends of the steel strands 3 are limited and fixed to the grid parts 5. S2: When the positioning component 4 is used, according to the connection of the outer rod 502 of the bolt ball 501, the first positioning ring 401 and the second positioning ring 403 are rotated at different angles, so that the rod 502 is placed between the included angle of the first positioning ring 401 and the second positioning ring 403. Then, by moving the lever 4015, the lever 4015 drives the arc rod 4014 to slide in the arc shell 4011 until the stop bar 601 on the arc rod 4014 moves out of the arc shell 4011. The stop bar 601 moves out of the limiting groove 6 under the elastic force of the second elastic element 602. The stop bar 601 restricts the arc rod 4014 from moving back under the elastic force of the first elastic element 4013, thereby realizing the locking of the bolt ball 501 of the space frame component 5 by the positioning component 4. S3: When the arc-shaped rod 4014 inside the first positioning ring 401 moves inside the arc-shaped housing 4011, the arc-shaped rack plate 10 on the arc-shaped rod 4014 meshes with the drive gear 11 inside the arc-shaped housing 4011. The rotation of the drive gear 11 will drive the threaded rod 111 to rotate through the guide bar 113. Since the threaded rod 111 is threaded with the arc-shaped housing 4011, the threaded rod 111 drives the arc-shaped plate 112 to move when it rotates, causing the arc-shaped plate 112 to move towards the pin shaft 402. Finally, the locking teeth 1121 on the arc-shaped plate 112 engage with the locking groove 4021 on the pin shaft 402, thereby locking the first positioning ring 401 and the second positioning ring 403, limiting the twisting between the first positioning ring 401 and the second positioning ring 403 during lifting, and preventing excessive shaking of the space frame component 5. S4: Subsequently, the crane lifts the mounting plate 1. The mounting plate 1 lifts the grid frame components 5 on both sides through the steel strands 3 and the positioning components 4. When the grid frame components 5 on both sides are lifted to a certain height, the drive motor 704 is controlled to run, so that the output end of the drive motor 704 drives one of the screws 701 to rotate. The screw 701 is driven by the driven gear 703 on the other screw 701 through the meshing of the driven gear 703, so that the two screws 701 rotate. When the two screws 701 rotate, the sleeves 702 on their outer sides move, so that the two sleeves 702 move towards each other. When the sleeves 702 move, they exert a force on the steel strands 3, so that the steel strands 3 pull the grid frame components 5 closer to each other through the positioning components 4, thereby realizing the docking and installation of the grid frame components 5 on both sides.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A steel structure space frame installation device, comprising an installation plate (1), characterized in that, Also includes: Lifting blocks (2), the lifting blocks (2) are provided in two sets and symmetrically arranged on both sides of the mounting plate (1), and lifting holes (201) are provided on the lifting blocks (2); Steel strands (3), the steel strands (3) are arranged in two sets and symmetrically arranged on both sides of the mounting plate (1), each set of the steel strands (3) has two strands, and the end of each steel strand (3) away from the mounting plate (1) is connected to a positioning element (4) for fixing the grid frame component (5); and A tightening assembly is fixed on the underside of the mounting plate (1) and is used to tighten the two sets of steel strands (3).

2. The steel structure space frame installation device according to claim 1, characterized in that, The positioning component (4) includes a first positioning ring (401) connected to the end of the steel strand (3) away from the mounting plate (1) and a second positioning ring (403) rotatably connected to the inner wall of the first positioning ring (401) via a pin (402). The first positioning ring (401) and the second positioning ring (403) have the same structure, and the second positioning ring (403) is staggered with the first positioning ring (401).

3. The steel structure space frame installation device according to claim 2, characterized in that, The first positioning ring (401) includes an arc-shaped shell (4011), a limiting plate (4012) slidably connected in the arc-shaped shell (4011), a first elastic element (4013) disposed between the limiting plate (4012) and the closed end of the arc-shaped shell (4011), an arc-shaped rod (4014) connected to the side of the limiting plate (4012) away from the first elastic element (4013) and slidably disposed with the arc-shaped shell (4011), and a lever plate (4015) disposed at the end of the arc-shaped rod (4014) away from the limiting plate (4012). The arc-shaped rod (4014) is provided with a limiting component. When the arc-shaped rod (4014) is stretched out from the arc-shaped shell (4011), it and the arc-shaped shell (4011) enclose a positioning area for covering the mesh frame component (5).

4. The steel structure space frame installation device according to claim 3, characterized in that, The limiting component includes a limiting groove (6) opened on the arc-shaped rod (4014), a stop rod (601) slidably connected in the limiting groove (6), and a second elastic element (602) disposed between the stop rod (601) and the inner wall of the limiting groove (6). The stop rod (601) is provided with a pressing inclined surface (6011) that moves against the arc-shaped shell (4011).

5. The steel structure space frame installation device according to claim 4, characterized in that, An arc-shaped rack plate (10) is fixed on the arc-shaped rod (4014) inside the first positioning ring (401). A drive gear (11) is rotatably connected to the arc-shaped housing (4011) of the first positioning ring (401) through a bearing. A threaded rod (111) is slidably connected to the drive gear (11) and threadedly connected to the arc-shaped housing (4011). An arc-shaped plate (112) is provided at the end of the threaded rod (111) and slides inside the arc-shaped housing (4011). A locking tooth (1121) is provided on the arc-shaped plate (112). A locking groove (4021) is provided on the pin (402) and is circumferentially distributed and engages with the locking tooth (1121).

6. The steel structure space frame installation device according to claim 5, characterized in that, A guide bar (113) is fixed on the drive gear (11), and a guide groove (1111) for sliding of the guide bar (113) is provided along the axial direction of the threaded rod (111).

7. A steel structure space frame installation device according to claim 6, characterized in that, The tightening assembly includes two side plates (7) fixed to the bottom side of the mounting plate (1), two screws (701) rotatably disposed between the two side plates (7), a sleeve (702) threadedly connected to the screws (701), a driven gear (703) fixed on the screws (701), and a drive motor (704) disposed on one of the side plates (7) and connected to the screws (701). The driven gears (703) on the two screws (701) mesh with each other, and the steel strand (3) passes through the sleeve (702). The steel strand (3) slides with the sleeve (702).

8. A steel structure space frame installation device according to claim 7, characterized in that, A guide rod (8) is fixed on the center line of the side plate (7). The sleeve (702) is slidably connected to the guide rod (8). The two sleeves (702) are symmetrically distributed on both sides of the central axis of the guide rod (8). One of the sleeves (702) has an active groove (9) at the bottom for the movement of the other sleeve (702).

9. A method for installing a steel structure space frame, comprising the steel structure space frame installation device as described in claim 8, characterized in that, It also includes the following steps: S1: When the device is in use, the staff will hang the hook of the hoisting vehicle into the lifting hole (201) of the lifting block (2), thereby lifting the mounting plate (1) which is fixedly connected to the lifting block (2) by the hoisting vehicle. Then the staff will pull the steel strands (3) on both sides of the mounting plate (1) so that the positioning part (4) at the end of the steel strand (3) is fixed to the grid part (5). S2: When the positioning component (4) is used, according to the connection of the outer rod (502) of the bolt ball (501), the first positioning ring (401) and the second positioning ring (403) are rotated at different angles, so that the rod (502) is placed between the included angle of the first positioning ring (401) and the second positioning ring (403). Then, by moving the lever (4015), the lever (4015) drives the arc rod (4014) to slide in the arc shell (4011) until the stop bar (601) on the arc rod (4014) moves out of the arc shell (4011). The stop bar (601) moves out of the limiting groove (6) under the elastic force of the second elastic element (602). The stop bar (601) restricts the arc rod (4014) from moving back under the elastic force of the first elastic element (4013), thereby realizing the positioning component (4) locking the bolt ball (501) of the grid component (5). S3: When the arc-shaped rod (4014) inside the first positioning ring (401) moves inside the arc-shaped housing (4011), the arc-shaped rack plate (10) on the arc-shaped rod (4014) meshes with the drive gear (11) inside the arc-shaped housing (4011). The rotation of the drive gear (11) will drive the threaded rod (111) to rotate through the guide bar (113). Since the threaded rod (111) is threaded with the arc-shaped housing (4011), the threaded rod (111) rotates. 1) When rotating, the arc plate (112) is moved, causing the arc plate (112) to move towards the pin (402), and finally the locking teeth (1121) on the arc plate (112) engage with the locking groove (4021) on the pin (402), thereby locking the first positioning ring (401) and the second positioning ring (403), limiting the twisting between the first positioning ring (401) and the second positioning ring (403) during lifting, and preventing excessive shaking of the space frame component (5); S4: Subsequently, the crane lifts the mounting plate (1). The mounting plate (1) lifts the grid frame components (5) on both sides through the steel strand (3) and positioning component (4). When the grid frame components (5) on both sides are lifted to a certain height, the drive motor (704) is controlled to run, so that the output end of the drive motor (704) drives one of the screws (701) to rotate. The screw (701) is driven by the driven gear (703) and the driven gear (703) on the other screw (701) to mesh and drive, so that the two screws (701) rotate. When the two screws (701) rotate, the sleeves (702) on their outer sides move, so that the two sleeves (702) move towards each other. When the sleeves (702) move, they exert force on the steel strand (3), so that the steel strand (3) pulls the grid frame components (5) closer to each other through the positioning component (4), thereby realizing the docking installation of the grid frame components (5) on both sides.

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