Adjustable back-staggered arc template structure

Abstract

The application discloses a kind of adjustable back lath arc template structures, including template component and hoisting mechanism, hoisting mechanism is connected with the winch on tower machine operating beam, template component includes several flexible plates and several support plates, both ends of support plate are fixed with positioning plate, positioning plate is provided with assembly component, two adjacent support plates are connected with flexible plate by assembly component, flexible plate has elasticity, its front end surface and the front end surface of support plate constitute continuous smooth working surface together;The rear end surface of support plate is connected with reinforcing back lath, the rear end surface of flexible plate is provided with multiple connecting blocks in middle part, reinforcing back lath is equipped with several adjustable back lath components, the hoisting mechanism connected with the winch of tower machine operating beam and intelligent support system of the present application significantly improve the precision and efficiency of tower body concrete construction, solve the curvature precision control of arc template in tower machine construction, provide high reliability solution for curved surface concrete pouring.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, in particular to an adjustable back-stiffened circular arc formwork structure. BACKGROUND

[0002] In the mechanized construction of modern high-rise tower buildings, the tower builder has become the core construction equipment due to its continuous climbing and integrated operation characteristics. However, the construction efficiency of the tower builder is highly dependent on the adaptability of the supporting formwork system. For arc-shaped concrete structures, the circular arc formwork system is one of the core equipment. However, the traditional formwork structure has the following technical pain points: fixed curvature formwork is only suitable for a single design diameter and cannot adapt to variable diameter designs, resulting in the need to re-customize and replace the formwork every time the curved surface diameter changes, causing a significant increase in cost and a delay in the construction period. SUMMARY

[0003] The purpose of the present application is to provide an adjustable back-stiffened circular arc formwork structure to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solution: an adjustable back-stiffened circular arc formwork structure, comprising a formwork assembly and a hoisting mechanism, the hoisting mechanism is connected with a winch on the operation beam of a tower builder, the formwork assembly comprises a plurality of flexible plates and a plurality of support plates, both ends of the support plate are fixed with a positioning plate, the positioning plate is provided with an assembly component, the flexible plate is connected between two adjacent support plates through the assembly component, the flexible plate has elasticity, and the front end face of the flexible plate and the front end face of the support plate jointly form a continuous smooth working surface;

[0005] The rear end face of the support plate is connected with a reinforced back-stiffened plate, and the rear end face of the flexible plate is provided with a plurality of connecting blocks in the middle, the reinforced back-stiffened plate is provided with a plurality of adjustable back-stiffened assembly components, each adjustable back-stiffened assembly component comprises a support and two sets of telescopic self-locking pieces, the support is fixedly installed on the reinforced back-stiffened plate, one end of the two sets of telescopic self-locking pieces is respectively hingedly installed at the left and right ends of the support, and the other end is connected with the connecting block on the corresponding side through a detachable hinge structure, when the flexible plate is bent and deformed, the distance between the connecting block and the support changes, the telescopic self-locking piece can be automatically locked after being adaptively elongated;

[0006] The middle part of the reinforced back-stiffened plate is provided with a connecting seat transversely, the connecting seat symmetrically extends to the rear space of the left and right flexible plates at both ends, and the connecting seat is provided with a movable piece on both sides, when the flexible plate is bent and deformed, the movable piece always maintains close contact with the back of the flexible plate through active displacement, and continuous abutment support is realized.

[0007] Further, the front end of the connecting seat is provided with a plurality of sealing cavities at both sides, the movable part comprises a connecting rod, a supporting rod and a sealing part, the connecting rod is slidingly arranged on the sealing cavities, the front end of the connecting rod penetrates through the connecting seat and extends to the outside, and the end of the connecting rod is provided with the supporting rod, the sealing part is arranged on the other end of the connecting rod, the first spring is connected between the sealing part and the inner wall of the sealing cavity, the rear end of each sealing cavity is connected through a conduit, the left and right ends of the connecting seat are provided with air ports, the air ports at both sides are connected with both ends of the conduit respectively, and the air ports at the corresponding side of the adjacent connecting seats at both sides are connected through detachable hoses.

[0008] Further, the telescopic self-locking part comprises a sleeve frame, a supporting frame, a ratchet bar and a pawl, the supporting frame is slidingly assembled in the sleeve frame, the other end of the supporting frame extends out of the sleeve frame, and the end of the supporting frame is hingedly provided with a fastening seat, the fastening seat is provided with a fastening hole, the connecting block is provided with a corresponding threaded hole, the fastening hole and the threaded hole are connected through a bolt, the section of the supporting frame in the sleeve frame is provided with a groove in which the ratchet bar is embedded, the inside of the sleeve frame is slidingly assembled with an adjusting seat, the pawl is hinged to the adjusting seat, and the pawl and the adjusting seat are connected with a return spring; the outer wall of the sleeve frame is movably provided with a pull rod, the bottom end of the pull rod extends to be connected with the adjusting seat, and the pull rod can drive the adjusting seat to horizontally displace, so that the pawl is forced to be separated from the ratchet bar to realize unlocking.

[0009] Further, the assembling component comprises a plurality of fixing rods, a plurality of through holes are formed in the positioning plate, and the fixing rods are slidingly arranged in the through holes; the rear end of the fixing rod is provided with a limiting block, the limiting block and the rear end face of the positioning plate are connected with a fastening spring, the front end of the fixing rod is provided with a key block, the positioning plate is provided with a key hole matched with the key block, the bottom of the key hole is designed as a limiting port, and the left and right ends of the supporting plate are provided with elastic sealing strips.

[0010] Further, the flexible plate comprises a surface layer, an intermediate layer and a base layer, the surface layer is made of 1.5mm wear-resistant stainless steel plate, the intermediate layer is made of 3mm high-elastic natural rubber, and the base layer is made of 2mm glass fiber reinforced nylon plate, and the side edges of the flexible plate are embedded with Ω-shaped spring steel strips.

[0011] Further, the rear end surface of the support plate is provided with lifting ports on the upper and lower sides, and lifting rods are fixed in the lifting ports; the lifting mechanism comprises a main frame, a movable frame, a first bearing frame and a second bearing frame, the inner sides of the left and right ends of the main frame are provided with movable grooves, a lead screw and a sliding rod are arranged in the movable grooves on the left and right sides respectively, one end of the movable frame is connected with the sliding rod in a sliding mode, and the other end is connected with the lead screw in a threaded mode, the lead screw is driven to rotate by a motor, the movable frame and the middle part of the main frame are connected with the first bearing frame and the second bearing frame respectively, the bottom ends of the first bearing frame and the second bearing frame are symmetrically provided with spade blocks, the rear end surface of the second bearing frame is provided with guide wheels on the upper and lower parts of the left and right sides, the main frame and the second bearing frame are respectively provided with first telescopic cylinders and second telescopic cylinders, the piston rods of the first telescopic cylinders and the second telescopic cylinders are provided with traction ropes at the tail ends, hooks are arranged at the two ends of the traction ropes, and a plurality of lifting lugs are arranged at the top end of the main frame.

[0012] Further, the middle part of the first bearing frame is provided with a bearing seat, a plurality of adjusting holes are equally spaced on the rear end surface of the bearing seat, a pressing rod is slidably assembled in the adjusting hole, the rear end of the pressing rod extends out of the bearing seat and is fixedly connected with a pressing block, a pre-pressing spring is arranged on the outer periphery of the pressing rod, the two ends of the pre-pressing spring are respectively connected with the front side of the pressing block and the rear end surface of the bearing seat, and a corrugated anti-skid rubber strip is embedded on the rear end surface of the pressing block, and staggered convex patterns are arranged on the surface of the anti-skid rubber strip.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] 1. The template assembly of the present application adopts the splicing design of flexible plates and support plates, realizes rapid assembly and unlocking through the splicing assembly, facilitates the adjustment of the length and curvature of the template according to the design curvature, and adapts to different circular arc radius requirements.

[0015] The telescopic self-locking piece of the back brace assembly is automatically locked in one direction when the template is bent, preventing the flexible plate from rebounding; the reinforced back brace and the multiple support frames form a continuous grid, dispersing the lateral pressure during concrete pouring and avoiding local instability; at the same time, the pneumatic network of the connecting seat is connected with high-pressure gas after bending and shaping, strengthening the abutting support of the support rods and realizing linkage response through gas pressure change, ensuring the overall rigidity and anti-deformation performance of the template and reducing the risk of concrete leakage.

[0016] 2. The lifting mechanism drives the spade blocks to wedge into the bottom end of the template through the lead screw motor, realizes automatic clamping, eliminates the gap between the pressing block and the pre-pressing spring of the first bearing frame, enhances friction through the corrugated anti-skid rubber strip, ensures stable lifting through the automatically tensionable traction rope, avoids the common problems of shaking or displacement during construction, and improves the efficiency of high-altitude work. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a rear view structural schematic diagram of the template assembly of the present application.

[0018] Figure 2 is a schematic view of the front structure of the template assembly of the present application;

[0019] Figure 3 is a sectional view of the connecting seat of the present application;

[0020] Figure 4 is a sectional view of the telescopic self-locking piece of the present application;

[0021] Figure 5 is a sectional view of the assembling assembly of the present application;

[0022] Figure 6 is a schematic view of the hoisting mechanism structure of the present application;

[0023] Figure 7 is a front view of the hoisting mechanism of the present application.

[0024] In the drawings, flexible plate-1, support plate-2, positioning plate-3, reinforcing back lath-4, connecting block-5, support-6, telescopic self-locking piece-7, connecting seat-8, movable piece-9, sealed cavity-10, connecting rod-11, support rod-12, sealing piece-13, first spring-14, guide pipe-15, air port-16, hose-17, sleeve frame-18, support frame-19, ratchet bar-20, pawl-21, fastening seat-22, adjusting seat-23, pull rod-24, fixed rod-25, limiting block-26, fastening spring-27, key block-28, key hole-29, limiting port-31, elastic sealing strip-32, hoisting port-33, hoisting rod-34, main frame-35, movable frame-36, first bearing frame-37, second bearing frame-38, movable groove-39, lead screw-40, motor-41, shovel block-42, guide wheel-43, first telescopic cylinder-44, second telescopic cylinder-45, traction rope-46, hook-47, bearing seat-48, pressing rod-49, pressing block-50, assembling assembly-51. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] As Figures 1 to 7As shown, an adjustable back-rib circular arc template structure includes a template assembly and a hoisting mechanism. The hoisting mechanism is connected to the hoist on the operating beam of the tower crane. The template assembly includes a plurality of flexible plates 1 and a plurality of support plates 2. Positioning plates 3 are fixed at both ends of the support plates 2. An assembly component 51 is provided on the positioning plate 3. The flexible plates 1 are connected between two adjacent support plates 2 through the assembly component 51. The flexible plates 1 are elastic, and their front end surfaces together with the front end surfaces of the support plates 2 form a continuous smooth working surface.

[0027] The rear end face of the support plate 2 is connected with a reinforced back rib 4, and a plurality of connecting blocks 5 are provided in the middle of the rear end face of the flexible plate 1. A number of adjustable back rib components are installed on the reinforced back rib 4. Each adjustable back rib component includes a support 6 and two sets of telescopic self-locking parts 7. The support 6 is fixedly mounted on the reinforced back rib 4. One end of the two sets of telescopic self-locking parts 7 is hingedly mounted on the left and right ends of the support 6, and the other end is connected to the connecting block 5 on the corresponding side through a detachable hinge structure. When the flexible plate 1 is bent and deformed, the distance between the connecting block 5 and the support 6 changes accordingly, and the telescopic self-locking part 7 can adaptively extend and automatically lock;

[0028] A connecting seat 8 is horizontally arranged in the middle of the reinforced back rib 4. The two ends of the connecting seat 8 extend symmetrically to the rear space of the flexible plates 1 on the left and right sides, and movable parts 9 are arranged on both sides. When the flexible plate 1 is bent and deformed, the movable part 9 always maintains a close fit with the back of the flexible plate 1 through active displacement, thereby achieving continuous abutment support.

[0029] The working principle of this embodiment is as follows: before pouring concrete, construction workers adjust the formwork according to the designed curvature. First, according to the range of the area to be poured, the length of the formwork is adjusted, and a corresponding number of flexible plates 1 and support plates 2 are spliced ​​together. For example, support plates 2 and flexible plates 1 are added to expand the coverage of the formwork. The initial state of the spliced ​​formwork is straight. Then, the formwork is bent according to the designed curvature. Since the flexible plate 1 is made of elastic material, its high resilience ensures that there is no permanent deformation after deformation, and it can be reused.

[0030] When the formwork gradually bends, the curvature continues to increase, which in turn causes the distance between the connecting block 5 and the support 6 to shorten. The telescopic self-locking part 7 performs one-way self-locking in real time according to the change in distance to prevent rebound and ensure the rigidity of the formwork after deformation, thereby avoiding deformation of the flexible plate 1 due to pressure during concrete pouring.

[0031] In the embodiment, the front end of the connecting seat 8 is provided with a plurality of sealing cavities 10 which are equidistantly arranged on both sides, the movable part 9 comprises a connecting rod 11, a supporting rod 12 and a sealing part 13, the connecting rod 11 is slidingly arranged on the sealing cavity 10, the front end of the connecting rod 11 penetrates through the connecting seat 8 and extends to the outside and the end thereof is provided with the supporting rod 12, the sealing part 13 is arranged on the other end of the connecting rod 11, the first spring 14 is connected between the sealing part 13 and the inner wall of the sealing cavity 10, the rear end of each sealing cavity 10 is connected through the conduit 15, the left and right ends of the connecting seat 8 are provided with the air port 16, the air ports 16 on both sides are respectively connected with the two ends of the conduit 15, the air ports 16 on the corresponding side of the adjacent connecting seats 8 on both sides are connected through the detachable hose 17;

[0032] After the assembling of the template is completed, the air ports 16 on the corresponding side of each adjacent connecting seat 8 are connected through the hose 17, so that all the sealing cavities 10 in the connecting seats 8 form a closed loop pneumatic network, when the flexible plate 1 is bent and deformed towards the working face, the supporting rod 12 is driven by the pre-tightening force of the internal first spring 14 to real-time adhere to the back of the flexible plate 1, so as to ensure that the basic support does not become empty no matter how the flexible plate 1 is bent, after the bending is shaped, the high-pressure gas input from the outside of the air port 16 at the most side end synchronously drives all the movable parts 9 through the connected air path network, so that the supporting rod 12 is further tightly pressed and locked in position, forming a uniformly reinforced dynamic support system, and then the input air port 16 is closed and blocked; the lateral pressure during the concrete pouring is uniformly dispersed by the supporting rod 12, so as to prevent the local deformation of the flexible plate 1, if the concrete flow causes the slight deformation of the flexible plate 1 (such as local bulging), at this time, the supporting rod 12 is compressed under pressure, the volume of the sealing cavity 10 is reduced, the gas pressure in the cavity is instantaneously increased, the reverse thrust is automatically enhanced, the deformation is inhibited from expanding, at the same time, the change of the gas pressure is transmitted to the adjacent cavities through the network of the conduit 15, triggering the linkage of the surrounding supporting rods 12 to increase the pressure, so as to form the cooperative correction.

[0033] In the embodiment, the telescopic self-locking part 7 comprises a sleeve frame 18, a supporting frame 19, a ratchet bar 20 and a pawl 21, the supporting frame 19 is slidingly assembled in the sleeve frame 18, the other end of the supporting frame 19 extends out of the sleeve frame 18, and the end thereof is hingedly provided with a fastening seat 22, the fastening seat 22 is provided with a fastening hole, the connecting block 5 is provided with a corresponding threaded hole, the fastening hole and the threaded hole are connected through a bolt, the section of the supporting frame 19 located in the sleeve frame 18 is provided with a groove in which the ratchet bar 20 is embedded, the inside of the sleeve frame 18 is slidingly assembled with an adjusting seat 23, the pawl 21 is hingedly connected to the adjusting seat 23, and the pawl 21 and the adjusting seat 23 are connected with a reset spring; the outer wall of the sleeve frame is movably provided with a pull rod 24, the bottom end of the pull rod 24 penetrates and extends to be connected with the adjusting seat 23, the external pull rod 24 can drive the adjusting seat 23 to horizontally displace, so as to force the pawl 21 to be separated from the ratchet bar 20 to realize the unlocking;

[0034] When the flexible plate 1 is bent towards the working face, an outward convex arc is formed, the connecting block 5 moves relative to the support 6, the interval between the connecting block 5 and the support 6 becomes smaller, thereby pushing the support frame 19 to slide into the sleeve frame 18, the ratchet bar 20 on the support frame 19 engages with the pawl 21 in the sleeve frame 18, after the support frame 19 moves, the ratchet bar 20 pushes the pawl 21, but the pawl 21 is automatically clamped into the tooth groove by the reset spring, realizing "one-way self-locking", preventing the support frame 19 from elongating in the original direction, if the flexible plate 1 tries to rebound due to the concrete pouring pressure or material elasticity, the inclined surface structure of the pawl 21 will jam the ratchet bar 20 in the reverse direction, thereby avoiding the elongation of the support frame 19, forming a rigid stop to ensure that the flexible plate 1 will not recover; when the flexible plate 1 needs to be restored, only the pull rod 24 on the outer wall of the sleeve frame 18 needs to be pulled to drive the adjusting seat 23 to move, forcing the pawl 21 to disengage from the ratchet bar 20, at this time the support frame 19 can move freely, and after the flexible plate 1 is restored, the pull rod 24 is pushed to reset the adjusting seat 23, so that the pawl 21 reengages;

[0035] The plurality of support frames 19 are evenly distributed along the reinforcing back beam 4 to form a continuous support grid, when a single point is stressed, adjacent support frames 19 disperse the load through the reinforcing back beam 4 to avoid local instability, for example, when the concrete is poured to the middle of the flexible plate 1, the support frame 19 at this position bears the maximum pressure, at this time part of the load is transmitted to the support frames 19 on both sides through the back beam to suppress the overall rebounding trend.

[0036] In the embodiment, the assembly component 51 includes a plurality of fixing rods 25, a plurality of through holes are formed in the positioning plate 3, each through hole is slidably provided with a fixing rod 25, the rear end of the fixing rod 25 is provided with a limiting block 26, the limiting block 26 and the rear end surface of the positioning plate 3 are connected with a fastening spring 27, the front end of the fixing rod 25 is provided with a key block 28, a key hole 29 matched with the key block 28 is formed in the positioning plate 3, a limiting port 31 is designed at the bottom of the key hole 29, the left and right ends of the support plate 2 are each provided with an elastic sealing strip 32, after the flexible plate 1 is bent and deformed, the elastic sealing strip 32 can always fill the gap between the support plate 2 and the flexible plate 1, thereby ensuring that the concrete cannot seep in;

[0037] In the assembly of the flexible plate 1 and the support plate 2, the flexible plate 1 and the support plate 2 are connected first, and the key block 28 is inserted into the key hole 29, then the worker presses the fixing rod 25 inward, so that the key block 28 is pushed into the limiting opening 31, and finally the fixing rod 25 is rotated to rotate the key block 28 by 90°, so that the key block 28 is clamped into the two ends of the limiting opening 31, at this time, the key block 28 and the key hole 29 are staggered, forming mechanical interlocking, and because the fixing rod 25 is pressed inward during installation, the tightening spring 27 is compressed, so that the restoring force of the tightening spring 27 continuously applies axial pre-tightening force during work, ensuring that the key block 28 is always in abutment with the limiting opening 31 to prevent loosening; when unlocking is required, only the key block 28 is rotated by 90° in the opposite direction, and the spring rebounds to push the fixing rod 25 out of the limiting opening 31.

[0038] In the embodiment, the flexible plate 1 includes a surface layer, an intermediate layer and a base layer, the surface layer is made of 1.5 mm wear-resistant stainless steel plate, the intermediate layer is made of 3 mm high-elastic natural rubber, and the base layer is made of 2 mm glass fiber reinforced nylon plate, and the side edges of the flexible plate 1 are embedded with Ω-shaped spring steel strips; the stainless steel of the surface layer prevents wear and tear, the high-elastic natural rubber of the intermediate layer provides deformation, and the glass fiber reinforced nylon plate of the base layer increases strength, ensuring that the working surface is smooth and durable, and when deformed, the rubber layer absorbs stress to avoid cracking, and when the flexible plate 1 is bent, the Ω-shaped spring steel strips on the side edges enhance the edge rigidity to prevent twisting.

[0039] In the embodiment, lifting openings 33 are formed on the upper and lower sides of the rear end face of the support plate 2, and lifting rods 34 are fixed in the lifting openings 33; the lifting mechanism includes a main frame 35, a movable frame 36, a first bearing frame 37 and a second bearing frame 38, the inner sides of the left and right ends of the main frame 35 are provided with movable grooves 39, and a lead screw 40 and a sliding rod are arranged in the movable grooves 39 on the left and right sides, respectively, one end of the movable frame 36 is connected with the sliding rod in a sliding manner, and the other end is connected with the lead screw 40 in a threaded manner, the lead screw 40 is driven to rotate by a motor 41, the movable frame 36 and the middle part of the main frame 35 are connected with the first bearing frame 37 and the second bearing frame 38, respectively, shovel blocks 42 are symmetrically arranged at the bottom ends of the first bearing frame 37 and the second bearing frame 38, respectively, guide wheels 43 are arranged on the upper and lower parts of the left and right sides of the rear end face of the second bearing frame 38, a first telescopic cylinder 44 and a second telescopic cylinder 45 are arranged on the main frame 35 and the second bearing frame 38, respectively, traction ropes 46 are arranged at the ends of the piston rods of the first telescopic cylinder 44 and the second telescopic cylinder 45, hooks 47 are arranged at the two ends of the traction ropes 46, and a plurality of lifting lugs are arranged at the top end of the main frame 35.

[0040] When hoisting, first, the template is erected, then the first carrier 37 and the second carrier 38 are respectively moved to the front and rear sides of the template, the rod motor 41 drives the screw rod 40 to rotate in the movable groove 39, thereby driving the movable frame 36 to move transversely along the slide rod, the bottom shovel block 42 (wedge structure) is inserted into the bottom end of the template, thereby guiding and lifting the template, then the movable frame 36 continues to move, and finally the template is clamped by the first carrier 37 and the second carrier 38.

[0041] Then the staff respectively winds the upper and lower two sides of the traction rope 46 around the corresponding guide wheel 43, buckles the hook 47 to the hoisting rod 34, and then starts the first telescopic cylinder 44 and the second telescopic cylinder 45, so that the piston rods of the two telescopic cylinders are elongated downward, thereby pushing the middle part of the traction rope 46 to move downward, so that the traction rope 46 is tensioned, to ensure that the traction rope 46 is always in a straight state during hoisting, so as to prevent the template from shaking.

[0042] In the embodiment, the middle part of the first carrier 37 is provided with a bearing seat 48, a plurality of adjusting holes are arranged at the rear end face of the bearing seat 48 at equal intervals, a pressing rod 49 is slidably assembled in the adjusting hole, the rear end of the pressing rod 49 extends out of the bearing seat 48 and is fixedly connected with a pressing block 50, a pre-pressing spring is sleeved on the outer periphery of the pressing rod 49, the two ends of the pre-pressing spring are respectively connected with the front side face of the pressing block 50 and the rear end face of the bearing seat 48, a corrugated antiskid rubber strip is embedded on the rear end face of the pressing block 50, and staggered convex lines are arranged on the surface of the corrugated antiskid rubber strip.

[0043] When the first carrier 37 moves inward, the pressing block 50 is pushed to tightly abut against the working face of the template, and the pre-pressing spring is compressed, so that the installation gap between the first carrier 37 and the template caused by the arc-shaped working face of the template is eliminated, and through the reset elastic force of the pre-pressing spring during hoisting, it is ensured that the pressing block 50 always abuts against the template, so as to prevent displacement caused by initial shaking during hoisting, and the corrugated antiskid rubber strip at the rear end of the pressing block 50 is embedded on the surface of the template under the elastic force, so as to increase the static friction coefficient, thereby further preventing the template from shaking.

[0044] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable back-rib circular arc template structure, comprising a template assembly and a hoisting mechanism, wherein the hoisting mechanism is connected to a winch on an operating beam of a tower crane, and is characterized in that: The template assembly includes a plurality of flexible plates and a plurality of support plates, positioning plates are fixed at both ends of the support plates, and an assembly component is provided on the positioning plates. A flexible plate is connected between two adjacent support plates through the assembly component. The flexible plate is elastic, and its front end surface and the front end surface of the support plate together form a continuous smooth working surface; The rear end face of the support plate is connected to a reinforced back rib, and a plurality of connecting blocks are provided in the middle of the rear end face of the flexible plate. A plurality of adjustable back rib components are installed on the reinforced back rib, and each adjustable back rib component includes a support and two sets of telescopic self-locking parts. The support is fixedly mounted on the reinforced back rib, and one end of the two sets of telescopic self-locking parts are hingedly mounted on the left and right ends of the support, and the other end is connected to the connecting block on the corresponding side through a detachable hinge structure. When the flexible plate is bent and deformed, the distance between the connecting block and the support changes accordingly, and the telescopic self-locking part can adaptively extend and automatically lock; A connecting seat is laterally provided in the middle of the reinforced back rib, and the two ends of the connecting seat extend symmetrically to the rear space of the left and right flexible plates, and movable parts are arranged on both sides. When the flexible plate is bent and deformed, the movable parts always maintain close contact with the back of the flexible plate through active displacement, thereby achieving continuous abutment support; A number of sealed cavities are evenly spaced on both sides of the front end of the connecting seat. The movable part includes a connecting rod, a support rod and a sealing member. The connecting rod is slidably arranged on the sealed cavity. The front end of the connecting rod passes through the connecting seat and extends to the outside, and the support rod is arranged at the end thereof. The sealing member is arranged at the other end of the connecting rod. A first spring is connected between the sealing member and the inner wall of the sealed cavity. The rear ends of each of the sealed cavities are connected through a conduit. Air ports are provided at both left and right ends of the connecting seat. The air ports on both sides are respectively connected to the two ends of the conduit. The air ports on the corresponding side of the adjacent connecting seats on both sides are connected through a detachable hose.

2. The adjustable back-rib circular arc template structure according to claim 1, characterized in that: The telescopic self-locking part includes a sleeve, a support frame, a ratchet bar and a pawl. The support frame is slidably assembled in the sleeve, and the other end of the support frame extends out of the sleeve, and its end is hingedly provided with a fastening seat, a fastening hole is provided on the fastening seat, and a corresponding threaded hole is provided on the connecting block, and the fastening hole and the threaded hole are connected by a bolt, and the section of the support frame located in the sleeve is provided with a groove for embedding the ratchet bar, and the inside of the sleeve is slidably assembled with an adjustment seat, the pawl is hinged on the adjustment seat, and a return spring is connected between the pawl and the adjustment seat; a pull rod is movably provided on the outer wall of the sleeve, and the bottom end of the pull rod extends through and connects with the adjustment seat, and the outward pull rod can drive the adjustment seat to move horizontally, forcing the pawl to disengage from the ratchet bar to achieve unlocking.

3. The adjustable back-rib circular arc template structure according to claim 1, characterized in that: The assembly component includes several fixing rods, several through holes are opened on the positioning plate, and the fixing rod is slidably arranged in each through hole. A limiting block is set at the rear end of the fixing rod, and a fastening spring is connected between the limiting block and the rear end surface of the positioning plate. A key block is set at the front end of the fixing rod, and a key hole matching the key block is opened on the positioning plate. A limiting opening is designed at the bottom of the key hole, and elastic sealing strips are set at both left and right ends of the support plate.

4. The adjustable back-rib circular arc template structure according to claim 1, characterized in that: The flexible plate includes a surface layer, an intermediate layer and a base layer. The surface layer is made of 1.5mm wear-resistant stainless steel plate, the intermediate layer is made of 3mm high-elasticity natural rubber, the base layer is made of 2mm glass fiber reinforced nylon plate, and the side of the flexible plate is embedded with an Ω-shaped spring steel strip.

5. The adjustable back-rib circular arc template structure according to claim 1, characterized in that: The lifting mechanism is a pair of fixedly mounted on opposite sides of the vehicle frame, and the supporting cam is mounted on a link cam of the vehicle frame. The supporting cam is mounted on both sides of the vehicle frame. The supporting cam is mounted on both sides of the vehicle frame.

6. The adjustable back-rib circular arc template structure according to claim 5, characterized in that: A bearing seat is provided in the middle of the first bearing frame, and a plurality of adjustment holes are provided at equal intervals on the rear end surface of the bearing seat. A pressure rod is slidably assembled in the adjustment hole, and the rear end of the pressure rod extends out of the bearing seat and is fixedly connected to a pressure block, and a pre-compression spring is sleeved on the outer periphery. The two ends of the pre-compression spring are respectively connected to the front side surface of the pressure block and the rear end surface of the bearing seat. A corrugated anti-slip rubber strip is embedded in the rear end surface of the pressure block, and the surface of the anti-slip rubber strip is provided with staggered raised patterns.

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