A construction equipment suitable for large-span roof

Abstract

The present application relates to the field of building construction technology, specifically to a construction equipment suitable for large-span roof, comprising a sliding rod, a fixed block slidingly arranged on the top of the sliding rod, and an anti-disengagement rod located on both sides of the sliding rod and insertedly matched with the fixed block, wherein the construction equipment for large-span roof further comprises a turnover construction mechanism, a locking anti-disengagement mechanism, and a climbing mechanism; the turnover construction mechanism is slidingly arranged outside the sliding rod and the anti-disengagement rod, and comprises a first displacement block, a second displacement block, a positioning rod, a turnover block, and a clamping plate. Through the turnover construction mechanism and the locking anti-disengagement mechanism, the present application can realize turnover and climbing construction without disassembling the sliding rod and the anti-disengagement rod, and the first displacement block can be stably stopped through the locking anti-disengagement mechanism after turnover, thereby ensuring construction safety and improving work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a construction equipment suitable for large-span roof. BACKGROUND

[0002] In the field of large-span roof construction, existing technologies face a series of challenges, particularly in the aspect of double-layer construction and alternating climbing during the construction process.

[0003] Traditional construction equipment and methods often struggle to provide sufficient convenience and efficiency when dealing with double-layer construction of large-span roofs. Since double-layer construction requires simultaneous work at two different height levels, existing construction equipment often lacks flexibility and adaptability, making it difficult to efficiently arrange support and work platforms within limited space, thereby increasing the difficulty and complexity of construction. This not only affects the construction progress, but also poses a threat to the safety of construction personnel.

[0004] In addition, during the alternating climbing process, existing technologies also have many inconveniences. Alternating climbing refers to the process of climbing different height work levels in a certain order and rhythm during construction to ensure the continuity and stability of construction. However, existing construction equipment often lacks precise control and coordination ability during alternating climbing, resulting in slow and unstable climbing process, and even possible safety accidents.

[0005] Chinese Patent No. CN221941880U discloses an external overhanging roof support frame, which includes a plurality of support units arranged along a first direction. Each support unit includes a vertical rod, a horizontal rod, and an inclined rod. The vertical rod is arranged along the vertical direction, and a plurality of vertical rods are arranged along a second direction between the building main body and the external overhanging roof. The horizontal rod is perpendicular to the vertical rod and connects multiple vertical rods. The bottom end of the inclined rod is connected to the end of the building main body near the external overhanging roof, and the top end is connected to the part of the external overhanging roof extending out of the building main body. This solves the problem of complex support frame structure, cumbersome construction and high production cost in existing technologies.

[0006] However, the above structure is not convenient for simultaneous construction of the upper and lower layers during actual use, reducing work efficiency. After the first layer of construction is completed, the current construction structure needs to be dismantled and reinstalled for the next floor construction. This process not only increases the complexity and difficulty of construction, but also further prolongs the construction period. SUMMARY

[0007] Aiming at the above problems, the application provides a construction equipment suitable for large-span roof, which solves the problems of frequent disassembly of locking parts and unstable support by means of the overturning construction mechanism and the locking anti-dropping mechanism.

[0008] To solve the problems in the prior art, the application provides a construction equipment suitable for large-span roof, which comprises a sliding rod, a fixed block slidingly arranged on the top of the sliding rod, and an anti-dropping rod located on both sides of the sliding rod and in plug-in cooperation with the fixed block.

[0009] Preferably, the overturning construction mechanism further comprises a first rotary driver, a first gear and a second gear; the first rotary driver is arranged on the overturning block, and the output end of the first rotary driver is connected with the positioning rod; the first gear is arranged outside the positioning rod and has a pair of first gears, and the first gears are located on one side of the sliding rod; the second gear is arranged on the output end of the first rotary driver, and the second gear is engaged with the first gear; when the second gear rotates, the first gear can be driven to rotate and drive the first displacement block to be in the overturning state.

[0010] Preferably, the first displacement block and the second displacement block are both provided with an avoiding groove for avoiding the overturning block; when the first displacement block is overturned to the upper side of the second displacement block, the overturning block can abut against the inside of the avoiding groove.

[0011] Preferably, the locking anti-disengagement mechanism comprises a second rotary driver, a rotary arm, a first cylinder, a guide rod and a moving block; the second rotary driver is arranged on the first displacement block and the second displacement block respectively and has a plurality of; the rotary arm has a plurality of and is arranged on the first displacement block and the second displacement block respectively, and the rotary arm is connected with the output end of the second rotary driver; the first cylinder is arranged on the rotary arm and located on one side of the anti-disengagement rod; the guide rod is arranged on the top of the rotary arm and located on one side of the first displacement block; the moving block is slidingly arranged on the outside of the guide rod, and the moving block is connected with the output end of the first cylinder.

[0012] Preferably, the locking anti-disengagement mechanism further comprises a second cylinder, an extension block, a clamping block and a hinged rod; the second cylinder is arranged in the inside of the moving block; the extension block is arranged at the output end of the second cylinder; the clamping block has a pair and is slidingly arranged on both sides of the moving block respectively; the hinged rod is rotatably connected with the extension block, and the other end of the hinged rod is rotatably connected with the clamping block, and when the extension block moves, the clamping block can be driven to be in a relatively far-apart state through the hinged rod.

[0013] Preferably, the outside of the anti-disengagement rod is provided with a plug-in groove for inserting the moving block; a plurality of abutting grooves for abutting the clamping block are arranged in the inside of the plug-in groove, and when the clamping block moves, it can be abutted to the inside of the abutting groove.

[0014] Preferably, the climbing mechanism comprises a setting plate, a first linear driver, a screw rod and a lifting platform; the setting plate has a pair and is arranged on the top of the first displacement block and the second displacement block respectively; the first linear driver has a pair and is installed below the setting plate; the screw rod is arranged at the output end of the first linear driver; and the lifting platform is slidingly installed on the setting plate and threadedly cooperates with the screw rod.

[0015] Preferably, the climbing mechanism further comprises a third cylinder, a limiting block and a stroke plate; the third cylinder is arranged at the left end of the lifting platform and located on one side of the sliding rod; the limiting block has a pair and is arranged at the left end of the lifting platform respectively; and the stroke plate is slidingly arranged on the limiting block and connected with the output end of the third cylinder.

[0016] Preferably, the climbing mechanism further comprises a third rotary driver, a rotary rod and a poking block; the third rotary driver is arranged on the top of the stroke plate and located on one side of the limiting block; the rotary rod is arranged at the output end of the third rotary driver; and the poking block is arranged on the outside of the rotary rod, and when the rotary rod rotates, the poking block can be driven to rotate synchronously.

[0017] Preferably, the climbing mechanism further comprises a stroke block; the inside of the sliding rod is provided with a notch; the stroke block has a plurality of and is arranged in the inside of the notch, and when the poking block rotates, the stroke block can be engaged and drive the setting plate and the first displacement block to slide.

[0018] The beneficial effects of the present application compared with the prior art are:

[0019] 1. The floor slab is inserted into the insertion port, and the rotation screw can abut the floor slab on the clamping plate, which is convenient for workers to construct.

[0020] 2. The locking and anti-dropping mechanism can position the first displacement block on the anti-dropping rod, which provides protection for normal construction of workers and ensures the stable stay of the first displacement block.

[0021] 3. The climbing mechanism enables the first displacement block to ascend or descend along the sliding rod after turning, and can drive the second displacement block to move synchronously, which can be adjusted in time according to the construction needs on site without disassembling the fixed block, the sliding rod and the anti-dropping rod. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a first perspective view of a construction equipment suitable for large-span roof.

[0023] Figure 2 is a front view of a construction equipment suitable for large-span roof.

[0024] Figure 3 is a rear view of a construction equipment suitable for large-span roof.

[0025] Figure 4 is a partial sectional view of a construction equipment suitable for large-span roof.

[0026] Figure 5 is Figure 4 an enlarged view of A in FIG.

[0027] Figure 6 is Figure 4 an enlarged view of B in FIG.

[0028] Figure 7 is a second perspective view of a construction equipment suitable for large-span roof.

[0029] Figure 8 is Figure 7 an enlarged view of C in FIG.

[0030] Figure 9It is a first displacement block overturning state of a construction equipment suitable for large-span roof.

[0031] Figure 10 It is Figure 9 The enlarged structure diagram at D in the middle.

[0032] In the figure, 1 is a sliding rod, 2 is a fixed block, 3 is an anti-dropping rod, 31 is a plug-in slot, 311 is an abutment slot, 4 is an overturning construction mechanism, 41 is a first displacement block, 411 is an avoidance slot, 42 is a second displacement block, 43 is a positioning rod, 44 is an overturning block, 45 is a clamping plate, 46 is a first rotary driver, 47 is a first gear, 48 is a second gear, 5 is a locking anti-dropping mechanism, 51 is a second rotary driver, 52 is a rotary arm, 53 is a first air cylinder, 54 is a guide rod, 55 is a moving block, 56 is a second air cylinder, 57 is an extension block, 58 is a clamping block, 59 is a hinged rod, 6 is a climbing mechanism, 61 is a setting plate, 611 is a motor, 612 is a gear pair, 62 is a first linear driver, 63 is a screw rod, 64 is a lifting platform, 65 is a third air cylinder, 66 is a limiting block, 67 is a stroke plate, 68 is a third rotary driver, 69 is a rotary rod, 691 is a poking block, and 692 is a stroke block. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0034] See Figures 1-4As shown, a construction equipment suitable for large-span roof, comprising a sliding rod 1, a fixed block 2 slidingly arranged at the top of the sliding rod 1, and a anti-off rod 3 located at both sides of the sliding rod 1 and inserted with the fixed block 2, the construction equipment for large-span roof further comprises a turnover construction mechanism 4, a locking anti-off mechanism 5 and a climbing mechanism 6; the turnover construction mechanism 4 is slidingly arranged outside the sliding rod 1 and the anti-off rod 3, and comprises a first displacement block 41, a second displacement block 42, a positioning rod 43, a turnover block 44 and a clamping plate 45; the first displacement block 41 is arranged at the top of the fixed block 2; the second displacement block 42 is arranged below the fixed block 2; the positioning rod 43 has a pair and is arranged below the first displacement block 41 and the second displacement block 42 respectively; the turnover block 44 is rotationally arranged between the first displacement block 41 and the second displacement block 42 and located at both sides of the sliding rod 1; the clamping plate 45 has a pair and is arranged at one side of the first displacement block 41 and the second displacement block 42 respectively, and can drive the first displacement block 41, the second displacement block 42 and the clamping plate 45 to synchronously turn over when the turnover block 44 turns over, until the second displacement block 42 is located above the first displacement block 41; the locking anti-off mechanism 5 is arranged at the top of the first displacement block 41 and the second displacement block 42 respectively, and is used for limiting the first displacement block 41 and the second displacement block 42 outside the anti-off rod 3; the climbing mechanism 6 is arranged above the first displacement block 41 and the second displacement block 42 respectively, and is used for driving the first displacement block 41 and the second displacement block 42 to slide.

[0035] The upper and lower ends of the fixed block 2 are both provided with circular grooves for clamping the sliding rod 1 and the anti-off rod 3, and bolts can be arranged in the circular grooves to quickly install the fixed block 2 at the top of the sliding rod 1 and the anti-off rod 3. The clamping plate 45 is provided with a plug-in port for inserting a floor slab, and a positioning screw 63 can be arranged on the clamping plate 45, so that when the floor slab is inserted into the plug-in port, rotating the screw 63 can tightly press the floor slab against the clamping plate 45, facilitating workers to work. A gap is left between the first displacement block 41 and the second displacement block 42, when the clamping plate 45 on one side of the first displacement block 41 is completed, the floor slab is disassembled through the screw 63, then the turnover block 44 can be turned over along the positioning rod 43 until the first displacement block 41 is located above the second displacement block 42, and then the floor slab is inserted into the clamping plate 45. The turnover construction can be realized without disassembling the sliding rod 1 and the anti-off rod 3, and the first displacement block 41 can be stably stopped through the locking anti-off mechanism 5 after turning over, which ensures the construction safety and improves the work efficiency.

[0036] Referring to Figures 3-5As shown, the overturning construction mechanism 4 further comprises a first rotary driver 46, a first gear 47 and a second gear 48; the first rotary driver 46 is arranged on the overturning block 44, and the output end of the first rotary driver 46 is connected with the positioning rod 43; the first gear 47 is arranged outside the positioning rod 43 and has a pair, and the first gear 47 is located on one side of the sliding rod 1; the second gear 48 is arranged on the output end of the first rotary driver 46, and the second gear 48 is engaged with the first gear 47, and when the second gear 48 rotates, it can drive the first gear 47 to rotate and drive the first displacement block 41 to be in an overturned state.

[0037] A rotary motor is arranged on the overturning block 44 for driving the second gear 48 to rotate, and the rotary motor is preferably a servo motor 611. When it is needed to drive the first displacement block 41 to overturn, first, the first rotary driver 46 drives the positioning rod 43 to rotate, and in this process, the second gear 48 is in a stopped state and does not rotate, and when the positioning rod 43 rotates, it can drive the overturning block 44 to overturn, until the overturning block 44 drives the first displacement block 41 to overturn above the second displacement block 42, so as to realize the overturning movement of the first displacement block 41, and then the rotary motor is started to drive the first gear 47 engaged with the second gear 48 to rotate, until the first displacement block 41 is located above the fixed block 2.

[0038] Referring to Figure 2 As shown, the first displacement block 41 and the second displacement block 42 are both provided with an avoiding groove 411 for avoiding the overturning block 44, and when the first displacement block 41 overturns above the second displacement block 42, the overturning block 44 can abut against the inside of the avoiding groove 411.

[0039] When the first displacement block 41 overturns, the overturning block 44 can abut against the avoiding groove 411 in the second displacement block 42, at this time, the overturning is stopped, which can ensure the stable overturning of the first displacement block 41.

[0040] Referring to Figures 4-6 As shown, the locking anti-disengagement mechanism 5 comprises a second rotary driver 51, a rotary arm 52, a first air cylinder 53, a guide rod 54 and a moving block 55; the second rotary driver 51 is arranged on the first displacement block 41 and the second displacement block 42 respectively and has a plurality of; the rotary arm 52 has a plurality of and is rotatably arranged on the first displacement block 41 and the second displacement block 42 respectively, and the rotary arm 52 is connected with the output end of the second rotary driver 51; the first air cylinder 53 is arranged on the rotary arm 52 and located on one side of the anti-disengagement rod 3; the guide rod 54 is arranged on the top of the rotary arm 52 and located on one side of the first displacement block 41; the moving block 55 is slidingly arranged outside the guide rod 54, and the moving block 55 is connected with the output end of the first air cylinder 53.

[0041] When the first displacement block 41 is flipped to the upper side of the second displacement block 42, in the process of flipping, the second rotary driver 51 drives the rotary arm 52 to rotate, so that the first displacement block 41 is flipped without causing the rotary arm 52 to contact the anti-falling rod 3. When the rotary arm 52 and the first air cylinder 53 are located on one side of the anti-falling rod 3, the first air cylinder 53 is started and drives the moving block 55 to slide along the gap-fitted guide rod 54, so that the moving block 55 moves to the inside of the anti-falling rod 3. At this time, the first displacement block 41 can be positioned on the anti-falling rod 3, which provides protection for normal construction of workers and ensures stable stay of the first displacement block 41.

[0042] Referring to Figure 5 , the locking anti-falling mechanism 5 further comprises a second air cylinder 56, an extension block 57, a clamping block 58 and a hinged rod 59. The second air cylinder 56 is arranged in the inside of the moving block 55. The extension block 57 is arranged at the output end of the second air cylinder 56. The clamping block 58 has a pair of clamping blocks 58 and is arranged on both sides of the moving block 55 respectively. The hinged rod 59 is rotationally connected with the extension block 57, and the other end of the hinged rod 59 is rotationally connected with the clamping block 58. When the extension block 57 moves, the clamping block 58 can be driven to be relatively far away through the hinged rod 59.

[0043] When the moving block 55 is located in the inside of the anti-falling rod 3, the second air cylinder 56 is started and drives the extension block 57 to move. In the process of moving the extension block 57, a pair of clamping blocks 58 can be driven to slide relatively far away through the rotationally connected hinged rod 59.

[0044] Referring to Figure 4 , the outside of the anti-falling rod 3 is provided with a plug-in groove 31 for inserting the moving block 55. A plurality of abutting grooves 311 for abutting the clamping block 58 are arranged in the inside of the plug-in groove 31. When the clamping block 58 moves, it can be abutted to the inside of the abutting groove 311.

[0045] The moving block 55 can be stably moved through the plug-in groove 31 arranged outside the anti-falling rod 3. When the clamping block 58 slides relatively far away, it can be abutted in the inside of the abutting groove 311. At this time, the first displacement block 41 after flipping can be fixed outside the anti-falling rod 3, so as to avoid the risk of falling of the first displacement block 41 after flipping, and improve the use safety.

[0046] Referring to Figure 6 and Figure 7 , the climbing mechanism 6 comprises a setting plate 61, a first linear driver 62, a screw rod 63 and a lifting platform 64. The setting plate 61 has a pair of setting plates 61 and is arranged on the top of the first displacement block 41 and the second displacement block 42 respectively. The first linear driver 62 has a pair of first linear drivers 62 and is installed below the setting plate 61. The screw rod 63 is arranged at the output end of the first linear driver 62. The lifting platform 64 is slidingly installed on the setting plate 61 and is threadedly connected with the screw rod 63.

[0047] The top of the first displacement block 41 and the second displacement block 42 is provided with a motor 611, the output end of the motor 611 is provided with a gear pair 612, the gear pair 612 is fixedly connected with the setting plate 61, when the motor 611 is started, the setting plate 61 can be driven to rotate through the gear pair 612, when the first displacement block 41 performs the overturning movement, the setting plate 61 can be driven to rotate by the motor 611, so that the first displacement block 41 is overturned to the second displacement block 42 and does not contact the setting plate 61 and the lifting platform 64. When the first displacement block 41 is overturned to the upper side of the second displacement block 42, the first linear driver 62 is started and drives the screw rod 63 to rotate, the screw rod 63 can drive the lifting platform 64 to slide upward or downward when rotating, so as to adjust the position of the lifting platform 64 and avoid affecting the worker construction. When the first displacement block 41 is raised or lowered, the clamping block 58 on the second displacement block 42 should be separated from the abutting groove 311.

[0048] Referring to Figure 6 and Figure 7 The climbing mechanism 6 further includes a third cylinder 65, a limiting block 66 and a stroke plate 67; the third cylinder 65 is arranged at the left end of the lifting platform 64 and located at one side of the sliding rod 1; the limiting block 66 has a pair and is arranged at the left end of the lifting platform 64 respectively; the stroke plate 67 is arranged on the limiting block 66 in sliding mode and connected with the output end of the third cylinder 65.

[0049] When the lifting platform 64 moves, the third cylinder 65 can be driven to move synchronously, and when the third cylinder 65 is started, the stroke plate 67 can be driven to slide along the limiting block 66 in the direction close to one side of the sliding rod 1.

[0050] Referring to Figures 8-10 The climbing mechanism 6 further includes a third rotary driver 68, a rotary rod 69 and a poking block 691; the third rotary driver 68 is arranged at the top of the stroke plate 67 and located at one side of the limiting block 66; the rotary rod 69 is arranged at the output end of the third rotary driver 68; the poking block 691 is arranged outside the rotary rod 69, and when the rotary rod 69 rotates, the poking block 691 can be driven to rotate synchronously.

[0051] When the stroke plate 67 is located at one side of the sliding rod 1 and the first displacement block 41 and the second displacement block 42 need to be climbed, the third rotary driver 68 is started and drives the rotary rod 69 and the poking block 691 to rotate, in this state, the clamping block 58 is separated from the outer side of the anti-coming-off rod 3, so that the first displacement block 41 after overturning can ascend or descend along the sliding rod 1, and at the same time, the second displacement block 42 can be driven to move synchronously, so that timely adjustment can be made according to the construction needs on site, and the fixed block 2, the sliding rod 1 and the anti-coming-off rod 3 do not need to be disassembled.

[0052] Referring to Figures 8-10As shown, the climbing mechanism 6 further comprises a stroke block 692; the inner portion of the sliding rod 1 is provided with a notch 693; the stroke block 692 is provided in plurality and is arranged in the inner portion of the notch 693 respectively, and can engage with the stroke block 692 and drive the setting plate 61 and the first displacement block 41 to slide when the toggle block 691 rotates.

[0053] When the toggle block 691 rotates, it can engage with the plurality of stroke blocks 692 arranged on the sliding rod 1, so that the toggle block 691 can stably ascend or descend when it contacts with the stroke block 692.

[0054] The working principle is as follows: firstly, the turnover block 44 is provided with a servo motor 611 for driving the second gear 48 to rotate. When the first displacement block 41 needs to be turned over, the first rotary driver 46 drives the positioning rod 43 to rotate, and the second gear 48 remains stationary at this time. The rotation of the positioning rod 43 drives the turnover block 44 and the first displacement block 41 to turn over, until the first displacement block 41 is located above the second displacement block 42. During the turnover process, the turnover block 44 abuts against the avoiding groove 411 of the second displacement block 42, so as to ensure stable turnover. When the first displacement block 41 is turned over to the upper side of the second displacement block 42, the second rotary driver 51 drives the rotary arm 52 to rotate, so as to avoid the rotary arm 52 from contacting the anti-falling rod 3. At this time, if the rotary arm 52 and the first cylinder 53 are located on one side of the anti-falling rod 3, the first cylinder 53 is started and drives the moving block 55 to slide along the guide rod 54, and the moving block 55 enters the anti-falling rod 3 to position the first displacement block 41 on the anti-falling rod 3. Subsequently, the second cylinder 56 is started and drives the extension block 57 to move, and drives a pair of clamping blocks 58 to relatively move away through the hinged rod 59. The moving block 55 moves stably through the insertion groove 31 outside the anti-falling rod 3, and the clamping block 58 abuts against the abutting groove 311, so as to fix the first displacement block 41 after turnover outside the anti-falling rod 3, and prevent the first displacement block 41 from falling. The top of the first displacement block 41 and the top of the second displacement block 42 are provided with the motor 611, the output end of the motor 611 is connected with a gear pair 612, and the gear pair 612 is fixed with the setting plate 61. When the motor 611 is started, the setting plate 61 is driven to rotate through the gear pair 612, so as to ensure that the first displacement block 41 does not contact the setting plate 61 and the lifting platform 64 when the first displacement block 41 is turned over to the upper side of the second displacement block 42. When the first displacement block 41 is turned over to the upper side of the second displacement block 42, the first linear driver 62 is started and drives the screw rod 63 to rotate, so as to adjust the position of the lifting platform 64, and avoid affecting the construction. When the first displacement block 41 rises or falls, the clamping block 58 on the second displacement block 42 should be separated from the abutting groove 311. When the lifting platform 64 moves, the third cylinder 65 moves synchronously. When the third cylinder 65 is started, the stroke plate 67 moves along the limiting block 66 to one side of the sliding rod 1. When the stroke plate 67 is located on one side of the sliding rod 1 and the first displacement block 41 and the second displacement block 42 need to be climbed, the third rotary driver 68 is started and drives the rotary rod 69 and the driving block 691 to rotate. At this time, the clamping block 58 is separated from the outside of the anti-falling rod 3, so that the first displacement block 41 after turnover can rise or fall along the sliding rod 1, and simultaneously drives the second displacement block 42 to move synchronously. When the driving block 691 rotates, the driving block 691 is engaged with a plurality of stroke blocks 692 on the sliding rod 1, so as to ensure stable rising or falling. During the whole process, the fixed block 2, the sliding rod 1 and the anti-falling rod 3 do not need to be disassembled, and can be adjusted in time according to the construction demand.

[0055] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A construction apparatus suitable for large span roofs, characterized in that, The utility model relates to a large-span roof construction equipment which comprises a sliding rod (1), a fixed block (2) slidingly arranged on the top of the sliding rod (1), and anti-disengagement rods (3) located on both sides of the sliding rod (1) and inserted into the fixed block (2); the construction equipment further comprises a turnover construction mechanism (4), a locking anti-disengagement mechanism (5), and a climbing mechanism (6). The turnover construction mechanism (4) is slidingly arranged outside the sliding rod (1) and the anti-disengagement rods (3), and comprises a first displacement block (41), a second displacement block (42), a positioning rod (43), a turnover block (44), and a clamping plate (45). The first displacement block (41) is arranged on the top of the fixed block (2). The second displacement block (42) is arranged below the fixed block (2). The positioning rod (43) is arranged below the first displacement block (41) and the second displacement block (42) respectively. The turnover block (44) is rotatably arranged between the first displacement block (41) and the second displacement block (42) and located on both sides of the sliding rod (1). The clamping plate (45) is arranged on one side of the first displacement block (41) and the second displacement block (42) respectively, and can drive the first displacement block (41), the second displacement block (42), and the clamping plate (45) to synchronously turn over when the turnover block (44) is turned over, until the second displacement block (42) is located above the first displacement block (41). The locking anti-disengagement mechanism (5) is arranged on the top of the first displacement block (41) and the second displacement block (42) respectively, and is used for limiting the first displacement block (41) and the second displacement block (42) outside the anti-disengagement rods (3). The climbing mechanism (6) is arranged above the first displacement block (41) and the second displacement block (42) respectively, and is used for driving the first displacement block (41) and the second displacement block (42) to slide.

2. The construction apparatus for large-span roofs according to claim 1, characterized in that, The turnover construction mechanism (4) further comprises a first rotary driver (46), a first gear (47), and a second gear (48). The first rotary driver (46) is arranged on the turnover block (44), and the output end of the first rotary driver (46) is connected with the positioning rod (43). The first gear (47) is arranged outside the positioning rod (43) and has a pair of first gears (47), and the first gears (47) are located on one side of the sliding rod (1). The second gear (48) is arranged on the output end of the first rotary driver (46), and the second gear (48) is engaged with the first gear (47), and can drive the first gear (47) to rotate and drive the first displacement block (41) to turn over when the second gear (48) rotates.

3. The construction apparatus for large-span roofs according to claim 2, characterized in that, The first displacement block (41) and the second displacement block (42) are both provided with an avoiding groove (411) for avoiding the turnover block (44), and the turnover block (44) can abut against the inside of the avoiding groove (411) when the first displacement block (41) is turned over to the top of the second displacement block (42).

4. The construction apparatus for large-span roof according to claim 1, wherein The locking anti-dropping mechanism (5) comprises a second rotary driver (51), a rotary arm (52), a first cylinder (53), a guide rod (54) and a moving block (55); the second rotary driver (51) is arranged on the first displacement block (41) and the second displacement block (42) respectively and has a plurality of; the rotary arm (52) has a plurality of and is arranged on the first displacement block (41) and the second displacement block (42) respectively, and the rotary arm (52) is connected with the output end of the second rotary driver (51); the first cylinder (53) is arranged on the rotary arm (52) and located on one side of the anti-dropping rod (3); the guide rod (54) is arranged on the top of the rotary arm (52) and located on one side of the first displacement block (41); the moving block (55) is slidingly arranged outside the guide rod (54), and the moving block (55) is connected with the output end of the first cylinder (53).

5. The construction apparatus for large-span roofs according to claim 4, characterized in that, The locking anti-dropping mechanism (5) further comprises a second cylinder (56), an extension block (57), a clamping block (58) and a hinged rod (59); the second cylinder (56) is arranged inside the moving block (55); the extension block (57) is arranged at the output end of the second cylinder (56); the clamping block (58) has a pair and is slidingly arranged on both sides of the moving block (55) respectively; the hinged rod (59) is rotationally connected with the extension block (57), and the other end of the hinged rod (59) is rotationally connected with the clamping block (58), so that the clamping block can be driven to be in a relatively distant state by the hinged rod (59) when the extension block (57) moves.

6. The construction apparatus for large-span roofs according to claim 1, characterized in that, The anti-dropping rod (3) is externally provided with a plug-in groove (31) for inserting the moving block (55); the plug-in groove (31) is internally provided with a plurality of abutting grooves (311) for abutting the clamping block (58), so that the clamping block (58) can be abutted to the inside of the abutting groove (311) when the clamping block (58) moves.

7. The construction apparatus for large-span roofs according to claim 1, characterized in that, The climbing mechanism (6) comprises a setting plate (61), a first linear driver (62), a screw rod (63) and a lifting platform (64); the setting plate (61) has a pair and is arranged on the top of the first displacement block (41) and the second displacement block (42) respectively; the first linear driver (62) has a pair and is installed below the setting plate (61); the screw rod (63) is arranged at the output end of the first linear driver (62); and the lifting platform (64) is slidingly installed on the setting plate (61) and threadedly cooperates with the screw rod (63).

8. The construction apparatus for large-span roofs according to claim 7, characterized in that, The climbing mechanism (6) further comprises a third cylinder (65), a limiting block (66) and a stroke plate (67); the third cylinder (65) is arranged at the left end of the lifting platform (64) and located on one side of the sliding rod (1); the limiting block (66) has a pair and is arranged at the left end of the lifting platform (64) respectively; and the stroke plate (67) is slidingly arranged on the limiting block (66) and connected with the output end of the third cylinder (65).

9. The construction apparatus for large-span roofs according to claim 8, characterized in that, The climbing mechanism (6) further comprises a third rotary driver (68), a rotary rod (69) and a poking block (691); the third rotary driver (68) is arranged on the top of the stroke plate (67) and located at one side of the limiting block (66); the rotary rod (69) is arranged on the output end of the third rotary driver (68); and the poking block (691) is arranged outside the rotary rod (69) and can rotate synchronously with the rotary rod (69) when the rotary rod (69) rotates.

10. The construction apparatus for large-span roofs according to claim 1, characterized in that, The climbing mechanism (6) further comprises a stroke block (692); the inside of the sliding rod (1) is provided with a notch (693); and the stroke block (692) is provided in plurality and arranged in the inside of the notch (693) respectively, and can engage with the stroke block (692) and drive the setting plate (61) and the first displacement block (41) to slide when the poking block (691) rotates.

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