Auxiliary device for segmented construction of large-span steel truss

Abstract

The invention discloses a large-span steel net rack segmented construction auxiliary device which comprises two fixed end net racks, a mid-span net rack located between the two fixed end net racks and first limiting plates fixed to the fixed end net racks and further comprises auxiliary limiting mechanisms connected with the fixed end net racks and the mid-span net rack at the same time. The protection mechanism I is mounted on the auxiliary limiting mechanism and the fixed end net rack; the protection mechanism II is mounted on the fixed end net rack; the auxiliary limiting mechanism comprises a first clamping mechanism clamped at one end of the midspan net rack, the outer wall of the first clamping mechanism is sleeved with a rotary driving seat, the rotary driving seat is used for driving the first clamping mechanism to rotate, and the outer wall of one side of the rotary driving seat is fixedly connected with a plurality of limiting sliding rods; the second clamping mechanism is clamped to the single fixed end net rack. The large-span steel net rack segmented construction auxiliary device has the effects that the positioning difficulty of high-altitude splicing is lowered, and stable supporting can be provided in the butt joint process.

Description

Technical Field

[0001] The invention relates to the technical field of long-span steel grid segmented construction, and in particular to a long-span steel grid segmented construction auxiliary device. Background Art

[0002] During the construction of large-span steel grid structures, a segmented hoisting method is usually adopted, that is, first fixing the fixed end grids on both sides, and then assembling the mid-span grids section by section to achieve the closure of the support grids on both sides. However, the existing construction method has the following problems:

[0003] The mid-span grid needed to be precisely aligned with the fixed fabrication grid mid-air. However, due to hoisting and installation deviations, repeated adjustments were often required, severely impacting construction efficiency. Furthermore, the process relied solely on manual crane movement, with workers standing on the fixed-end grid manually guiding repeated adjustments. This resulted in high labor intensity and significant safety risks associated with high-altitude operations. Summary of the Invention

[0004] The present invention discloses a large-span steel grid segmented construction auxiliary device, which aims to solve the technical problems that the construction process relies solely on manual operation of the lifting equipment to move, and repeated adjustments are made manually guided by workers standing on the fixed-end grid, resulting in high labor intensity for workers and prominent safety hazards in high-altitude operations.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An auxiliary device for the segmented construction of a large-span steel grid comprises two fixed-end grids, a mid-span grid located between the two fixed-end grids, and a first limiting plate fixed to each fixed-end grid. The device also comprises: an auxiliary limiting mechanism connected to both the fixed-end grids and the mid-span grid; a first protective mechanism installed on the auxiliary limiting mechanism and the fixed-end grids; and a second protective mechanism installed on the fixed-end grids.

[0007] The auxiliary limiting mechanism includes: a clamping mechanism 1, which is clamped at one end of the mid-span grid, and the outer wall of the clamping mechanism 1 is sleeved with a rotating drive seat, the rotating drive seat is used to drive the clamping mechanism 1 to rotate, and a plurality of limiting slides are fixedly connected to the outer wall of one side of the rotating drive seat; a clamping mechanism 2, which is clamped on a single fixed-end grid, and its two sides are respectively fixedly connected to the limiting sleeve, and a plurality of limiting slides are correspondingly movably inserted into the limiting sleeve; a robotic arm, both ends of which are fixedly connected to the clamping mechanism 2 and the outer wall of the bottom end of the rotating drive seat, for changing the distance between the two.

[0008] By setting up an auxiliary limiting mechanism, the worker stands on the fixed-end grid and selects a horizontal bar of the fixed-end grid. One end of the horizontal bar needs to be connected to one end of the mid-span grid. Then, the clamping mechanism 2 is tightly clamped on the horizontal bar of the fixed-end grid. As the mid-span grid is hoisted, the worker guides one end of the mid-span grid to be clamped by the clamping mechanism 1, and controls the mechanical arm to retract so that one end of the mid-span grid is connected to one end of the horizontal bar. Then, the clamping mechanism 1 is driven to rotate by the rotating drive seat to assist the docking of the mid-span grid with the other end points of the fixed-end grid. Under this structure, the time required for docking can be shortened based on the rapid docking of one end and the auxiliary adjustment, the positioning difficulty of high-altitude assembly is reduced, and stable support is provided during the docking process.

[0009] In a preferred embodiment, the clamping mechanism comprises: a U-shaped clamping frame, a notch 2 provided on the U-shaped clamping frame is horizontally clamped on the mid-span grid; a circular connecting plate fixedly connected to the outer wall of one side of the U-shaped clamping frame, which is connected to the rotating drive seat, and a notch 1 is provided on one side of the circular connecting plate; a hydraulic cylinder fixedly connected to the top outer wall of the U-shaped clamping frame, an output end of which is fixedly connected to a pressure plate 1, and the bottom end of the pressure plate 1 is fixed with an anti-slip pad 1;

[0010] The clamping mechanism 1 further includes: an arc-shaped slide groove 1, which is provided on the U-shaped clamping frame 1 and is movably connected to a support rod 1 in the arc-shaped slide groove 1; an arc-shaped limit plate 1, which is fixedly connected to the support rod 1, and its outer wall is movably fitted to the inner wall of the U-shaped clamping frame 1; a clamping frame 2, which is fixedly connected to the outer end of the support rod 1, and a connecting rod 2 is movably sleeved on its outer wall, and one end of the connecting rod 2 is fixedly connected to the footrest frame; a limiting column, which is fixedly connected to the outer wall of one side of the U-shaped clamping frame 1;

[0011] The second clamping mechanism comprises: a second U-shaped clamping frame, a third notch provided on the second U-shaped clamping frame being laterally clamped on the fixed end grid, a first hanging rod being fixedly connected to the outer wall of the top end of one side of the U-shaped clamping frame; two connecting rods being movably inserted into the inner wall of the top end of the second U-shaped clamping frame, and a hinged rod being fixedly connected between the two connecting rods, and an L-shaped hanging rack being movably sleeved on the hinged rod; a second pressing plate being fixedly connected to the bottom ends of the two connecting rods, and a second anti-slip pad being fixedly attached to the bottom end of the second pressing plate;

[0012] The second clamping mechanism also includes: a second arc-shaped slide groove, which is arranged on the second U-shaped clamping frame, and a second support rod is movably connected in the second arc-shaped slide groove; a second arc-shaped limit plate, which is fixedly connected to the second support rod, and its outer wall is movably fitted to the inner wall of the second U-shaped clamping frame; a hook, which is movably connected to one end of the second support rod; and a second hanging rod, which is fixedly connected to the outer wall of one side of the second U-shaped clamping frame, and the hook is clamped on the second hanging rod.

[0013] In a preferred embodiment, the second protective mechanism comprises: a third support rod, each end of which is connected to a second U-shaped clamping frame via a connecting frame, and the inner wall of each U-shaped clamping frame is fixedly inlaid with a magnetic sheet; a sleeve movably sleeved on the outside of the third support rod, and a torsion spring is fixedly connected between the inner wall of the sleeve and the outer wall of the third support rod; and a protective plate fixedly connected to one side outer wall of the sleeve;

[0014] The second protective mechanism also includes: a support frame, which is fixedly connected to one side of the support rod three, and a limiting ring is fixedly connected to the middle position thereof; a pull rope, one end of which is fixedly connected to the outer wall of one side of the protective plate, and the other end passes through the limiting ring.

[0015] By setting up the second protective mechanism, if there is wind on the construction day and the wind is strong, it will affect the movement of the mid-span grid during the hoisting process. In this case, the second protective mechanism is installed, and the support rod three is diagonally supported between a horizontal rod and a vertical rod of the fixed end grid. At this time, the protective plate is located on the moving path of the hoisted mid-span grid. When the mid-span grid approaches, it can first hit the protective plate, and provide buffering under the action of the torsion spring to avoid direct impact on the human body and cause injury.

[0016] In a preferred embodiment, the protective mechanism 1 includes: a cross-link group, both ends of which are movably connected to the side brackets; a connecting rod 1, hinged to the bottom end of one of the side brackets, and one end of the connecting rod 1 is hinged to an elastic buckle, which is movably connected to the fixed end grid;

[0017] The first protection mechanism further includes: a hinged frame hinged to the bottom end of the other side bracket and fixedly connected to one side outer wall of the U-shaped clamping frame; a fiber rope fixedly connected to one side outer wall of the side bracket, the other end of which is fixedly connected to the first U-shaped clamping frame, and the U-shaped clamping frame is sleeved on the fixed end grid;

[0018] The protective mechanism also includes: a screw hole, which is arranged on the inner wall of one side of the U-shaped clamping frame, and a screw is movably engaged in the screw hole; a protective net, whose two ends are respectively fixedly connected to the two side brackets and movably fits on the outer wall of one side of the cross-link group.

[0019] By providing a protective mechanism 1, the cross-link group can be folded and unfolded. After the auxiliary limiting mechanism is installed, the cross-link group can be unfolded, one end of which is connected to a horizontal bar for support, and the other end is supported by the clamping mechanism 2 and a vertical bar of the fixed end frame to prevent it from falling when installing the clamping mechanism 1 and fixing the docking point, thereby effectively reducing the risk of workers falling.

[0020] From the above, it can be seen that a large-span steel truss segmented construction auxiliary device includes two fixed-end trusses, a mid-span truss located between the two fixed-end trusses, and a limit plate 1 fixed on each fixed-end truss. It also includes: an auxiliary limit mechanism, which is connected to the fixed-end truss and the mid-span truss at the same time; a protective mechanism 1, which is installed on the auxiliary limit mechanism and the fixed-end truss; a protective mechanism 2, which is installed on the fixed-end truss; the auxiliary limit mechanism includes: a clamping mechanism 1, which is clamped at one end of the mid-span truss, and the outer wall of the clamping mechanism 1 is sleeved with a rotating drive seat, the rotating drive seat is used to drive the clamping mechanism 1 to rotate, and a plurality of limit slides are fixedly connected to the outer wall of one side of the rotating drive seat; a clamping mechanism 2, which is clamped on a single fixed-end truss, and its two sides are respectively fixedly connected to the limit sleeve, and the plurality of limit slides are correspondingly movably inserted in the limit sleeve; a mechanical arm, whose two ends are simultaneously fixedly connected to the clamping mechanism 2 and the bottom outer wall of the rotating drive seat, for changing the distance between the two. The large-span steel grid segmented construction auxiliary device provided by the present invention has the technical effect of reducing the positioning difficulty of high-altitude assembly and providing stable support during the docking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure after installation of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0023] Figure 3 This is a schematic diagram of a disassembled clamping mechanism of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0024] Figure 4 This is a cross-sectional view of the clamping mechanism of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0025] Figure 5 This is a schematic diagram of the splitting of the clamping mechanism of the large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0026] Figure 6 This is a cross-sectional view of the clamping mechanism of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0027] Figure 7 This is a schematic diagram of a disassembled protective mechanism of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0028] Figure 8 This is a schematic diagram of the second split of the protective mechanism of a large-span steel grid segmented construction auxiliary device proposed by the present invention.

[0029] In the figure: 1. fixed end grid; 2. protective mechanism 1; 3. auxiliary limiting mechanism; 4. mid-span grid; 6. protective mechanism 2; 7. limiting plate 1; 201. protective net; 202. side bracket; 203. fiber rope; 204. U-shaped clamping frame 1; 205. screw hole; 206. screw; 207. articulated frame; 208. cross connecting rod group; 209. elastic buckle; 210. connecting rod 1; 31. clamping mechanism 1; 32. rotating drive seat; 33. clamping mechanism 2; 34. limiting sleeve; 35. limiting slide rod; 36. mechanical arm; 3101. circular connecting plate; 3102. notch 1; 3103. U-shaped clamping frame 1; 3104. notch 2; 3105. arc-shaped slide 1; 3106. limiting column; 3107. pedal frame; 3108. connecting rod 2; 3109, Clamping Frame 2; 3110, Support Rod 1; 3111, Arc Limiting Plate 1; 3112, Anti-Slip Pad 1; 3113, Pressing Plate 1; 3114, Hydraulic Cylinder; 3301, L-Shaped Hanging Bracket; 3302, Articulated Rod; 3303, Connecting Rod; 3304, Pressing Plate 2; 3305, Anti-Slip Pad 2; 3306, Hanging Rod 1; 3307, U-Shaped Clamping Frame 2; 3308, Arc-shaped limit plate 2; 3309, support rod 2; 3310, hook; 3311, arc-shaped slide 2; 3312, hanging rod 2; 3313, notch 3; 601, magnetic sheet; 602, U-shaped clamping frame 2; 603, connecting frame; 604, support rod 3; 605, torsion spring; 606, sleeve; 607, protective plate; 608, pull rope; 609, support frame; 610, limit ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] The invention discloses a large-span steel grid segmented construction auxiliary device which is mainly used in the scenario of steel grid segmented construction.

[0032] Reference Figure 1 and Figure 2 A large-span steel grid segmented construction auxiliary device includes two fixed-end grids 1, a mid-span grid 4 located between the two fixed-end grids 1, and a limit plate 7 fixed to each fixed-end grid 1, and further includes:

[0033] The auxiliary limiting mechanism 3 is connected to the fixed end grid 1 and the mid-span grid 4 at the same time;

[0034] The protection mechanism 1 2 is installed on the auxiliary limiting mechanism 3 and the fixed end grid 1;

[0035] The second protective mechanism 6 is installed on the fixed end grid 1;

[0036] The auxiliary limiting mechanism 3 includes:

[0037] A clamping mechanism 31 is clamped at one end of the mid-span grid 4, and a rotation drive seat 32 is sleeved on the outer wall of the clamping mechanism 31. The rotation drive seat 32 is used to drive the clamping mechanism 31 to rotate, and a plurality of limit slide rods 35 are fixedly connected to the outer wall of one side of the rotation drive seat 32;

[0038] The second clamping mechanism 33 is clamped on a single fixed end grid 1, and its two sides are fixedly connected to the limiting sleeve 34, and multiple limiting slide rods 35 are correspondingly and movably inserted into the limiting sleeve 34;

[0039] The two ends of the mechanical arm 36 are fixedly connected to the second clamping mechanism 33 and the outer wall of the bottom end of the rotation drive base 32 to change the distance between the two.

[0040] Reference Figure 3 and Figure 4 In a preferred embodiment, the clamping mechanism 31 includes:

[0041] U-shaped clamping frame 1 3103, notch 2 3104 provided on U-shaped clamping frame 1 3103 is transversely clamped on the mid-span grid 4;

[0042] A circular connecting plate 3101 is fixedly connected to the outer wall of one side of the U-shaped clamping frame 1 3103, which is connected to the rotating drive base 32. A notch 1 3102 is provided through one side of the circular connecting plate 3101;

[0043] The hydraulic cylinder 3114 is fixedly connected to the top outer wall of the U-shaped clamping frame 3103, and its output end is fixedly connected to the pressure plate 3113. The bottom end of the pressure plate 3113 is fixed with an anti-slip pad 3112.

[0044] Reference Figure 3 and Figure 4 In a preferred embodiment, the clamping mechanism 31 further includes:

[0045] An arc-shaped slide 3105 is provided on the U-shaped clamping frame 3103, and a support rod 3110 is movably connected in the arc-shaped slide 3105;

[0046] The arc-shaped limiting plate 1 3111 is fixedly connected to the support rod 1 3110, and its outer wall is movably fitted to the inner wall of the U-shaped clamping frame 1 3103. In the clamping mechanism 1 31, the U-shaped clamping frame 1 3103 is horizontally clamped to the crossbar on the mid-span grid 4. By stepping on the footrest 3107, the arc-shaped limiting plate 1 3111 is pushed to fit the inner wall of the U-shaped clamping frame 1 3103 and move to one side of the crossbar of the mid-span grid 4, and fit to the outer wall of its crossbar, so that the crossbar can be corrected. Subsequently, by controlling the hydraulic cylinder 3114 to start and squeeze the pressure plate 1 3113 downward, the crossbar can be clamped, thereby achieving stable clamping of the clamping mechanism 1 31.

[0047] The second clamping frame 3109 is fixedly connected to the outer end of the first support rod 3110, and the outer wall of the second connecting rod 3108 is movably connected to the second connecting rod 3108. One end of the second connecting rod 3108 is fixedly connected to the pedal frame 3107.

[0048] The limiting column 3106 is fixedly connected to the outer wall of one side of the U-shaped clamping frame 3103. The setting of the limiting column 3106 can limit the position of the connecting rod 2 3108 to prevent it from falling vertically to a position that cannot be touched by the feet.

[0049] Reference Figure 5 and Figure 6 In a preferred embodiment, the second clamping mechanism 33 includes:

[0050] A second U-shaped clamping frame 3307, a third notch 3313 provided on the second U-shaped clamping frame 3307 is transversely clamped onto the fixed end grid 1, and a first hanging rod 3306 is fixedly connected to the outer wall of the top of one side. In the second clamping mechanism 33, the second U-shaped clamping frame 3307 is transversely clamped onto the crossbar of the fixed end grid 1;

[0051] Two connecting rods 3303 are movably inserted into the top inner wall of the second U-shaped clamping frame 3307, and a hinge rod 3302 is fixedly connected between the two connecting rods 3303, and an L-shaped hanging bracket 3301 is movably sleeved on the hinge rod 3302;

[0052] The second pressing plate 3304 is fixedly connected to the bottom ends of the two connecting rods 3303 , and the bottom end of the second pressing plate 3304 is fixedly attached with a second anti-slip pad 3305 .

[0053] Reference Figure 5 and Figure 6 In a preferred embodiment, the second clamping mechanism 33 further includes:

[0054] The second arc-shaped slide groove 3311 is provided on the second U-shaped clamping frame 3307, and the second support rod 3309 is movably connected in the second arc-shaped slide groove 3311;

[0055] The second arc-shaped limiting plate 3308 is fixedly connected to the second support rod 3309, and its outer wall is movably fitted to the inner wall of the second U-shaped clamping frame 3307;

[0056] A hook 3310 is movably connected to one end of the second support rod 3309;

[0057] The second hanging rod 3312 is fixedly connected to the outer wall of one side of the U-shaped clamping frame 3307, and the hook 3310 is clamped on the second hanging rod 3312. After the arc-shaped limiting plate 3308 is manually moved to one side of the cross bar to wrap it, the hook 3310 is clamped on the second hanging rod 3312 to achieve limitation, and then the L-shaped hanging bracket 3301 is pressed down. As the clamping position with the first hanging rod 3306 changes, the anti-slip pad 2 3305 is squeezed to achieve interference squeezing of the cross bar by the pressure plate 2 3304, and the installation of the clamping mechanism 2 33 is quickly realized. This structure replaces the electric structure with a manual structure, thereby reducing the overall weight of the auxiliary limiting mechanism 3 to a certain extent, making it convenient to carry and move.

[0058] Reference Figure 7 In a preferred embodiment, the protection mechanism 2 includes:

[0059] The cross link assembly 208 has two ends movably connected to the side brackets 202;

[0060] The connecting rod 1 210 is hinged to the bottom end of one of the side brackets 202 , and one end of the connecting rod 1 210 is hinged to an elastic buckle 209 , which is movably connected to the fixed end grid 1 .

[0061] Reference Figure 7 In a preferred embodiment, the protection mechanism 2 further includes:

[0062] The hinged frame 207 is hinged to the bottom end of the other side bracket 202 and fixedly connected to one side outer wall of the second U-shaped clamping frame 3307;

[0063] The fiber rope 203 is fixedly connected to one side outer wall of the side bracket 202, and the other end thereof is fixedly connected to a U-shaped clamping frame 204, and the U-shaped clamping frame 204 is sleeved on the fixed end grid 1.

[0064] Reference Figure 7 In a preferred embodiment, the protection mechanism 2 further includes:

[0065] A screw hole 205 is provided on an inner wall of one side of the U-shaped clamping frame 204, and a screw rod 206 is movably engaged in the screw hole 205;

[0066] The protective net 201 has two ends fixedly connected to the two side brackets 202 respectively, and is movably fitted to one side outer wall of the cross-link group 208. The cross-link group 208 can be folded and unfolded. After the auxiliary limiting mechanism 3 is installed, the cross-link group 208 can be unfolded, one end is opened by the elastic clip 209 and is sleeved on a horizontal bar of the fixed end grid frame 1 for support, and the other end is clamped and supported by the clamping mechanism 2 33, and the U-shaped clamping frame 1 204 is sleeved on the outer wall of a vertical bar of the fixed end grid frame 1, and is clamped by twisting the screw 206, and support is provided by the stretching of the fiber rope 203. The holes of the cross-link group 208 are blocked by the protective net 201 to provide side protection for the workers on the fixed end grid frame 1 to prevent them from falling when installing the clamping mechanism 1 31 and fixing the docking point, effectively reducing the risk of workers falling.

[0067] Reference Figure 8 In a preferred embodiment, the protection mechanism 2 6 includes:

[0068] The two ends of the support rod 604 are connected to the U-shaped card frame 602 through the connecting frame 603, and the inner wall of each U-shaped card frame 602 is fixedly embedded with a magnetic piece 601;

[0069] The sleeve 606 is movably sleeved on the outside of the third support rod 604, and a torsion spring 605 is fixedly connected between the inner wall of the sleeve and the outer wall of the third support rod 604;

[0070] The protective plate 607 is fixedly connected to the outer wall of one side of the sleeve 606. If there is wind on the construction day and the wind is not small, it will affect the movement of the mid-span grid 4 during the hoisting process. Then the protective mechanism 2 6 is installed to diagonally support the support rod 3 604 between a horizontal rod and a vertical rod of the fixed end grid 1. Since most grid materials include iron components, the magnetic piece 601 can be adsorbed on the mid-span grid 4. The limiting plate 1 7 is against one side of the U-shaped clamping frame 2 602 at the bottom to stabilize the position of the support rod 3 604. At this time, the protective plate 607 is located on the moving path of the hoisted mid-span grid 4. When the mid-span grid 4 approaches, it can first hit the protective plate 607, and provide a buffer under the action of the torsion spring 605 to avoid direct impact on the human body and cause injury.

[0071] Reference Figure 8 In a preferred embodiment, the second protection mechanism 6 further includes:

[0072] The support frame 609 is fixedly connected to one side of the support rod 3 604, and the middle position thereof is fixedly connected to the limit ring 610;

[0073] One end of the pull rope 608 is fixedly connected to the outer wall of one side of the protective plate 607, and the other end passes through the limiting ring 610. If the wind force will not temporarily affect the lifting of the mid-span grid frame 4, then the pull rope 608 is pulled, and under the action of the limiting ring 610, the protective plate 607 can be collected to the inside, thereby avoiding affecting the lifting of the mid-span grid frame 4.

[0074] Working principle: The worker stands on the fixed end grid 1, selects a crossbar of the fixed end grid 1, one end of which needs to be connected to one end of the mid-span grid 4, and then tightly clamps the clamping mechanism 2 33 on the crossbar of the fixed end grid 1. As the mid-span grid 4 is hoisted, it moves between the two fixed end grids 1 and is within the worker's reach. The worker guides one end of the mid-span grid 4 to move so that it is clamped by the clamping mechanism 1 31, and controls the mechanical arm 36 to retract, maintaining the clamping mechanism under the limiting action of multiple limit slides 35. The second 33 and the clamping mechanism 1 31 are at the same height and are brought close to each other, so that one end of the mid-span grid 4 is docked with one end of the cross bar, and then the clamping mechanism 1 31 is driven to rotate by the rotating driving seat 32. While providing support force, a cross bar of the mid-span grid 4 is used as the rotation axis, and a small distance rotation is used to assist the docking of the mid-span grid 4 with the other end points of the fixed end grid 1. Under this structure, the time required for docking can be shortened based on the rapid docking of one end and the auxiliary adjustment, reducing the positioning difficulty of high-altitude assembly and providing stable support during the docking process.

[0075] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A long-span steel grid segmented construction auxiliary device, comprising two fixed-end grids (1), a mid-span grid (4) located between the two fixed-end grids (1), and a limiting plate (7) fixed to each fixed-end grid (1), characterized in that: Also includes: The auxiliary limiting mechanism (3) is connected to the fixed end grid (1) and the mid-span grid (4); A protective mechanism (2) is installed on the auxiliary limiting mechanism (3) and the fixed end grid (1); The second protective mechanism (6) is installed on the fixed end grid (1); The auxiliary limiting mechanism (3) comprises: A clamping mechanism (31) is clamped at one end of the mid-span grid (4), and a rotation drive seat (32) is sleeved on the outer wall of the clamping mechanism (31), the rotation drive seat (32) is used to drive the clamping mechanism (31) to rotate, and a plurality of limiting slide rods (35) are fixedly connected to the outer wall of one side of the rotation drive seat (32); The second clamping mechanism (33) is clamped on a single fixed end grid (1), and its two sides are respectively fixedly connected to the limiting sleeve (34), and a plurality of limiting slide rods (35) are correspondingly movably inserted into the limiting sleeve (34); The two ends of the mechanical arm (36) are fixedly connected to the outer wall of the bottom end of the clamping mechanism 2 (33) and the rotating driving seat (32) for changing the distance between the two.

2. The large-span steel grid segmented construction auxiliary device according to claim 1 is characterized in that: The clamping mechanism (31) comprises: A U-shaped clamping frame (3103) is provided, wherein a second notch (3104) provided on the U-shaped clamping frame (3103) is laterally clamped on the mid-span grid (4); A circular connecting plate (3101) is fixedly connected to an outer wall of one side of the U-shaped clamping frame (3103), which is connected to the inside of the rotating drive seat (32). A notch (3102) is provided through one side of the circular connecting plate (3101); The hydraulic cylinder (3114) is fixedly connected to the top outer wall of the U-shaped clamping frame (3103), and its output end is fixedly connected to the pressure plate (3113). The bottom end of the pressure plate (3113) is fixed with an anti-slip pad (3112).

3. The large-span steel grid segmented construction auxiliary device according to claim 2, characterized in that: The clamping mechanism 1 (31) further comprises: An arc-shaped slide groove (3105) is provided on the U-shaped clamping frame (3103) through which a support rod (3110) is movably connected. An arc-shaped limiting plate (3111) is fixedly connected to a support rod (3110), and its outer wall is movably fitted to the inner wall of a U-shaped clamping frame (3103); The second clamping frame (3109) is fixedly connected to the outer end of the first support rod (3110), and the outer wall of the second connecting rod (3108) is movably sleeved, and one end of the second connecting rod (3108) is fixedly connected to the pedal frame (3107); The limiting column (3106) is fixedly connected to the outer wall of one side of the U-shaped clamping frame (3103).

4. The large-span steel grid segmented construction auxiliary device according to claim 1, characterized in that: The second clamping mechanism (33) comprises: A second U-shaped clamping frame (3307), a third notch (3313) provided on the second U-shaped clamping frame (3307) is transversely clamped on the fixed end grid (1), and a first hanging rod (3306) is fixedly connected to the outer wall of the top end of one side thereof; Two connecting rods (3303) are movably inserted into the inner wall of the top of the second U-shaped clamping frame (3307), and a hinge rod (3302) is fixedly connected between the two connecting rods (3303), and an L-shaped hanging bracket (3301) is movably sleeved on the hinge rod (3302); The second pressing plate (3304) is fixedly connected to the bottom ends of the two connecting rods (3303), and the bottom end of the second pressing plate (3304) is fixedly attached with the second anti-slip pad (3305).

5. The large-span steel grid segmented construction auxiliary device according to claim 4 is characterized in that: The second clamping mechanism (33) further comprises: The second arc-shaped slide groove (3311) is provided on the second U-shaped clamping frame (3307) through which the second arc-shaped slide groove (3311) is movably connected to the second support rod (3309); The second arc-shaped limiting plate (3308) is fixedly connected to the second support rod (3309), and its outer wall is movably fitted to the inner wall of the second U-shaped clamping frame (3307); A hook (3310) movably connected to one end of the second support rod (3309); The second hanging rod (3312) is fixedly connected to the outer wall of one side of the second U-shaped clamping frame (3307), and the hook (3310) is clamped on the second hanging rod (3312).

6. The large-span steel grid segmented construction auxiliary device according to claim 4, characterized in that: The protection mechanism 1 (2) comprises: A cross link assembly (208) with two ends movably connected to the side brackets (202); The connecting rod (210) is hinged to the bottom end of one of the side brackets (202), and one end of the connecting rod (210) is hinged with an elastic buckle (209), and the elastic buckle (209) is movably connected to the fixed end grid (1).

7. The large-span steel grid segmented construction auxiliary device according to claim 6, characterized in that: The protective mechanism 1 (2) further comprises: The hinged frame (207) is hinged to the bottom end of the other side bracket (202) and fixedly connected to the outer wall of one side of the U-shaped clamping frame (3307); The fiber rope (203) is fixedly connected to one side outer wall of the side bracket (202), and the other end thereof is fixedly connected to a U-shaped clamping frame (204), and the U-shaped clamping frame (204) is sleeved on the fixed end grid (1).

8. The large-span steel grid segmented construction auxiliary device according to claim 7, characterized in that: The protective mechanism 1 (2) further comprises: A screw hole (205) is provided on an inner wall of one side of the U-shaped clamping frame (204), and a screw rod (206) is movably engaged in the screw hole (205); The protective net (201) has two ends fixedly connected to the two side brackets (202) and is movably fitted to the outer wall of one side of the cross link group (208).

9. The large-span steel grid segmented construction auxiliary device according to claim 1, characterized in that: The second protection mechanism (6) includes: The two ends of the support rod (604) are connected to the U-shaped card-joining frame (602) through the connecting frame (603), and the inner wall of each U-shaped card-joining frame (602) is fixedly inlaid with a magnetic piece (601); The sleeve (606) is movably sleeved on the outside of the support rod (604), and a torsion spring (605) is fixedly connected between the inner wall of the sleeve and the outer wall of the support rod (604); The protective plate (607) is fixedly connected to an outer wall of one side of the sleeve (606).

10. The large-span steel grid segmented construction auxiliary device according to claim 9, characterized in that: The second protection mechanism (6) further comprises: The support frame (609) is fixedly connected to one side of the support rod (604), and the middle position thereof is fixedly connected to a limiting ring (610); A pull rope (608) has one end fixedly connected to an outer wall of one side of the protective plate (607) and the other end passing through a limiting ring (610).

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