A climbing formwork device for thin-wall pier construction

Abstract

The present invention relates to a climbing formwork device for thin-wall pier construction, comprising a climbing frame, a construction platform, a hydraulic jacking mechanism, a casting template and a mold moving mechanism, the casting template comprising a first template and a second template, a connecting mechanism is provided at the connection between the first template and the second template, the connecting mechanism comprises a push-pull mechanism for controlling the relative position of the first template and the second template in the front-to-back direction and a positioning mechanism for controlling the relative position of the first template and the second template in the left-to-right direction, and a top mold mechanism is provided on the casting template, the top mold mechanism passes through the template plate surface and pushes against the thin-wall pier to separate the casting template from the thin-wall pier. The casting template of the present invention accurately controls the relative position of the first template and the second template in the front-to-back and left-to-right directions through the push-pull mechanism and the positioning mechanism in the connecting mechanism, and moves in sequence to complete the mold closing or demolding action, ensuring that the template is accurately molded and demolded smoothly, thereby improving the casting quality.

Description

Technical Field

[0001] The invention relates to the technical field of thin-wall pier construction equipment, and in particular to a climbing formwork equipment used for thin-wall pier construction. Background Art

[0002] Due to the particularity of hollow thin-walled piers, both the inner and outer surfaces of the side walls of hollow thin-walled piers need to be supported with formwork for concrete pouring of hollow thin-walled piers. At present, in the construction process of hollow thin-walled piers, it is common to install a climbing formwork system on the outside of the hollow thin-walled pier, and fix the outer formwork and pour concrete on the operating platform of the climbing formwork system. During the construction process, every time the hollow thin-walled pier is raised by one section, it is necessary to continue to build a frame at the upper end of the original frame so that the height of the operating platform inside the hollow thin-walled pier is adapted to the construction height of the hollow thin-walled pier. This construction method requires the frequent use of tower cranes to hoist the inner formwork of the hollow thin-walled pier and hoist the materials needed to build the frame. Not only is the construction efficiency low, but the frequent use of tower cranes also increases the risk of high-altitude operations.

[0003] The invention patent with publication number CN117626808A discloses a construction equipment for vertical multi-story structures. The operating surface corresponding to the base of the construction equipment corresponds to the surrounding edge of the central construction part. The operating surface is fitted or separated with the surrounding edge by an automatic mold-lifting device and an automatic demoulding device, thereby completing the mold closing or demoulding action. However, the construction equipment still has the following problems: 1. After mold closing, the automatic mold-lifting device cannot provide sufficient pressure to support the casting template for pouring concrete, and adjacent templates still need to be connected by bolts; 2. When the height of the casting template is high, the automatic demoulding device alone cannot apply uniform pulling force to the upper and lower ends of the casting template, and the demoulding action cannot be successfully completed. Summary of the invention

[0004] The purpose of the present invention is to provide a climbing formwork device for thin-wall pier construction to solve the problems raised in the background technology.

[0005] The above-mentioned object of the present invention is achieved through the following technical scheme: a climbing formwork device for thin-wall pier construction, comprising a climbing frame, a multi-layer construction platform arranged on the climbing frame, a hydraulic jacking mechanism arranged at the bottom of the climbing frame, a casting template arranged on the inner side of the construction platform, and a mold moving mechanism for driving the casting template to complete mold closing or demolding, the casting template comprises a first template distributed front and back on the front and rear sides of the thin-wall pier and a second template distributed left and right on the left and right sides of the thin-wall pier, a connecting mechanism is arranged at the connection between the first template and the second template, the connecting mechanism comprises a push-pull mechanism for controlling the relative position of the first template and the second template in the front and rear direction and a positioning mechanism for controlling the relative position of the first template and the second template in the left and right direction, the first template and the second template move in sequence to complete the mold closing or demolding action, and a top mold mechanism is arranged on the casting template, and the top mold mechanism passes through the template plate surface and pushes against the thin-wall pier to separate the casting template from the thin-wall pier.

[0006] Preferably, the push-pull mechanism includes connecting parts arranged at the left and right ends of the first template, a snap-in arranged on the connecting parts, a telescopic driving part fixed at the front and rear ends of the second template, and a snap-in joint driven to move by the telescopic driving part, the snap-in joint moves with the second template to snap into or out of the snap-in, and the telescopic driving part is snap-connected with the connecting part through the snap-in joint to drive the first template to move.

[0007] Preferably, the bayonet holes are linearly spaced apart along the vertical direction, and each bayonet hole is connected to a corresponding card connector.

[0008] Preferably, the clamping joint includes two limit end blocks spaced apart front and rear along the telescopic direction of the telescopic drive member and a connecting column connected between the two limit end blocks, an annular clamping groove for clamping the connecting member is formed between the two limit end blocks, and the connecting column is clamped into the clamping port.

[0009] Preferably, the positioning mechanism includes a positioning groove, a positioning block and a pressure spring, the positioning groove is arranged on the plate surface of the first template facing the second template, the positioning block is movably arranged on the second template, the pressure spring is arranged at one end of the positioning block and pushes the other end of the pressure spring to insert into the positioning groove, and the end of the positioning groove inserted into the positioning groove is provided with a guide slope, and the guide slope faces the inner side of the second template.

[0010] Preferably, the top mold mechanism includes a mounting hole passing through the casting template board, a top block movably arranged in the mounting hole, and a driving mechanism for driving the top block in and out of the mounting hole. The mounting holes are distributed in an up, down, left and right array, and a top block is arranged in each mounting hole.

[0011] Preferably, the driving mechanism includes a hollow column arranged on the outer surface of the casting template, a screw rod rotatably installed in the inner cavity of the hollow column, a lifting block threadedly installed on the screw rod, a driving motor driving the screw rod to rotate, and a transmission arm connected between the lifting block and the top block, and the mounting hole is connected to the inner cavity of the hollow column.

[0012] Preferably, the hydraulic jacking mechanism includes two jacking frames symmetrically distributed on both sides of the bottom of the climbing frame, jacking cylinders arranged at both ends of the jacking frames, and load-bearing columns supported at the bottom of the climbing frame, and the two ends of the jacking frames are movably connected to the two load-bearing columns.

[0013] Preferably, guide grooves are respectively provided at both ends of the lifting frame, the load-bearing columns are inserted in the guide grooves, support blocks are respectively provided on both sides of the guide grooves, the support blocks are rotatably mounted on the lifting frame, positioning holes are provided on the load-bearing columns, and the support blocks are inserted in the positioning holes when the lifting frame is lifted upward.

[0014] Preferably, a support frame is provided on the outer plate surface of the casting formwork, the support frame is movably installed on the construction platform, and the construction platform is provided with a guide wheel supported by the bottom of the support frame.

[0015] Beneficial effects of the present invention: 1. The casting template of the present invention accurately controls the relative positions of the first template and the second template in the front-to-back and left-to-right directions through the push-pull mechanism and the positioning mechanism in the connecting mechanism, and moves in sequence to complete the mold closing or demoulding action, ensuring accurate mold closing and smooth demoulding of the template, thereby improving the casting quality; 2. The top formwork mechanism set on the casting formwork can penetrate the formwork surface and push against the thin-walled pier, so that the casting formwork and the thin-walled pier can be easily separated, which simplifies the demoulding process and reduces the risk of formwork damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 It is a structural schematic diagram of a hydraulic jacking mechanism in an embodiment of the present invention; Figure 4 yes Figure 3 A partial enlarged view of point B in the middle; Figure 5 It is a structural schematic diagram of a casting template in an embodiment of the present invention; Figure 6is a structural schematic diagram of a connecting mechanism in an embodiment of the present invention; Figure 7 2 is a schematic structural diagram of a top mold mechanism in an embodiment of the present invention; In the figure: 1-climbing frame, 2-construction platform, 3-hydraulic jacking mechanism, 301-jacking frame, 302-jacking cylinder, 303-load-bearing column, 304-guide slide, 305-support block, 306-positioning hole, 4-casting template, 4a-first template, 4b-second template, 5-mold shifting mechanism, 6-push-pull mechanism, 601-connecting piece, 602-bayonet, 603-card joint, 6031-limiting end block, 6032-connecting column, 604-telescopic drive member, 7-positioning mechanism, 701-positioning groove, 702-positioning block, 703-top pressure spring, 8-top mold mechanism, 801-mounting hole, 802-top block, 803-hollow column, 804-screw, 805-lifting block, 806-drive motor, 807-transmission arm, 9-support frame, 10-guide wheel. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0019] Example: Figure 1-7 As shown, a climbing formwork device for thin-wall pier construction includes a climbing frame 1, a multi-layer construction platform 2 arranged on the climbing frame 1, a hydraulic jacking mechanism 3 arranged at the bottom of the climbing frame 1, a casting formwork 4 arranged on the inner side of the construction platform 2, and a mold moving mechanism 5 for driving the casting formwork 4 to complete mold closing or demolding.

[0020] The mold moving mechanism 5 includes a stepper motor and a transmission rod driven by a worm gear of the stepper motor. The end of the transmission rod is fixedly connected to the casting template 4. The stepper motor drives the transmission rod to move through the worm gear, thereby driving the casting template 4 to move.

[0021] A support frame 9 is provided on the outer plate surface of the casting formwork 4 , and the support frame 9 is movably installed on the construction platform 2 , and a guide wheel 10 supported at the bottom of the support frame 9 is provided on the construction platform 2 .

[0022] like Figure 3 and Figure 4As shown, the hydraulic lifting mechanism 3 includes two lifting frames 301 symmetrically distributed on both sides of the bottom of the climbing frame 1, lifting oil cylinders 302 arranged at both ends of the lifting frames 301, and load-bearing columns 303 supported at the bottom of the climbing frame 1, and the two ends of the lifting frame 301 are movably connected to the two load-bearing columns 303. The cylinder body of the lifting oil cylinder 302 is fixed on the lifting frame 301, and the piston rod of the lifting oil cylinder 302 is fixed on the base or the ground at the bottom. When the lifting oil cylinder 302 is extended, the lifting oil cylinder 302 drives the lifting frame 301, and the lifting frame 301 drives the load-bearing column 303 and the climbing frame 1 to move upward; when the lifting reaches the set height, a new load-bearing column 303 is reinstalled below the load-bearing column 303.

[0023] The two ends of the jacking frame 301 are respectively provided with guide grooves 304, the bearing column 303 is inserted in the guide grooves 304, and the two sides of the guide grooves 304 are respectively provided with support blocks 305, the support blocks 305 are rotatably installed on the jacking frame 301, and the bearing column 303 is provided with positioning holes 306. When the jacking frame 301 is jacked up, the support blocks 305 are inserted in the positioning holes 306; when the new bearing column 303 is installed in place, the jacking cylinder 302 begins to shorten so that the cylinder body drives the jacking frame 301 to move, and at this time the support blocks 305 rotate in the opposite direction to disengage the support blocks 305 from the positioning holes 306, so that the jacking frame 301 can move downward to the new bearing column 303 until the support blocks 305 are reinserted into the positioning holes 306, thus completing a jacking action of the climbing frame 1.

[0024] like Figure 5 and Figure 6 As shown, the casting template 4 includes two first templates 4a distributed front and back on the front and rear sides of the thin-walled pier and two second templates 4b distributed left and right on the left and right sides of the thin-walled pier. A connecting mechanism is provided at the connection between the first template 4a and the second template 4b.

[0025] The connecting mechanism includes a push-pull mechanism 6 for controlling the relative position of the first template 4a and the second template 4b in the front-to-back direction and a positioning mechanism 607 for controlling the relative position of the first template 4a and the second template 4b in the left-to-right direction. The first template 4a and the second template 4b move in sequence to complete the mold closing or demolding action.

[0026] The push-pull mechanism 6 includes a connecting member 601 fixed at the left and right ends of the first template 4a, a snap-in 602 arranged on the connecting member 601, a telescopic driving member 604 fixed at the front and rear ends of the second template 4b, and a snap-in joint 603 driven to move by the telescopic driving member 604. The snap-in joint 603 moves with the second template 4b to snap into or out of the snap-in 602. The telescopic driving member 604 is snap-connected with the connecting member 601 through the snap-in joint 603 to drive the first template 4a to move.

[0027] The bayonet holes 602 are linearly spaced apart along the vertical direction, and each bayonet hole 602 is connected to a corresponding bayonet connector 603 .

[0028] One end of the card joint 603 is slidably installed on the second template 4b through a sliding sleeve, and the other end is located outside the second template 4b. The telescopic driving member 604 adopts a hydraulic cylinder, which is fixed on the second template 4b and connected to the card joint 603.

[0029] The clamping joint 603 includes two limit end blocks 6031 spaced apart from each other in the telescopic direction of the telescopic driving member 604 and a connecting column 6032 connected between the two limit end blocks 6031 . An annular clamping groove for clamping the connecting member 601 is formed between the two limit end blocks 6031 , and the connecting column 6032 is clamped into the clamping port 602 .

[0030] The positioning mechanism 607 includes a positioning groove 701, a positioning block 702 and a pressure spring 703. The positioning groove 701 is arranged on the plate surface of the first template 4a toward the second template 4b. The positioning block 702 is movably arranged on the second template 4b. The pressure spring 703 is arranged at one end of the positioning block 702 and pushes the other end of the pressure spring 703 to be inserted into the positioning groove 701. The end of the positioning groove 701 inserted into the positioning groove 701 is provided with a guide slope, and the guide slope faces the inner side direction of the second template 4b.

[0031] When the mold is closed, the two first templates 4a first move inward (toward the thin-wall pier direction) to the mold closing position, and then the second template 4b moves inward. At this time, the positioning block 702 is pressed into the positioning groove 701 through the guiding inclined surface during the movement until the mold closing position. The positioning block 702 is inserted into the positioning groove 701 under the elastic force of the top pressure spring 703, so that the second template 4b cannot move in the left and right direction relative to the first template 4a; when the second template 4b moves, the clamping joint 603 is clamped into the clamping port 602 on the connecting piece 601, so that the first template 4a cannot move in the front and rear direction relative to the second template 4b.

[0032] When demolding, the mold shifting mechanism 5 first drives the first template 4a to demold, and at the same time the telescopic driving member 604 extends, pushing the first template 4a to move through the clamping joint 603 to assist in demolding; when the first template 4a is moved into place, the positioning block 702 has been disengaged from the positioning groove 701, and at this time the mold shifting mechanism 5 drives the second template 4b to demold, so that the clamping joint 603 is disengaged from the clamping mouth 602, thus completing the demolding action.

[0033] like Figure 7 As shown, a top mold mechanism 8 is provided on the casting template 4, and the top mold mechanism 8 passes through the template plate surface and presses against the thin-wall pier to separate the casting template 4 from the thin-wall pier.

[0034] The top mold mechanism 8 includes a mounting hole 801 that passes through the surface of the casting template 4, a top block 802 movably arranged in the mounting hole 801, and a driving mechanism for driving the top block 802 in and out of the mounting hole 801. The mounting holes 801 are distributed in an array up, down, left and right, and a top block 802 is arranged in each mounting hole 801.

[0035] The driving mechanism may be a cylinder or an oil cylinder or other mechanism. In this embodiment, the driving mechanism includes a hollow column 803 arranged on the outer surface of the casting template 4, a screw rod 804 rotatably installed in the inner cavity of the hollow column 803, a lifting block 805 threadedly installed on the screw rod 804, a driving motor 806 driving the screw rod 804 to rotate, and a transmission arm 807 connected between the lifting block 805 and the top block 802. The mounting hole 801 is connected to the inner cavity of the hollow column 803. The hollow column 803 is fixedly connected to the casting template 4, and the lifting block 805 is connected to the hollow column 803 and slidably installed on the hollow column 803.

[0036] During concrete pouring, the end face of the lifting block 805 is flush with the inner plate surface of the casting template 4, so that the mounting hole 801 is completely blocked. During demoulding, the driving motor 806 rotates to drive the lifting block 805 to move, and the lifting block 805 extends out of the mounting hole 801 through the top block 802 and moves toward the thin-walled pier, so that the lifting block 805 supports the thin-walled pier, thereby generating a reverse thrust on the hollow column 803 and the casting template 4, which plays a role in assisting demoulding.

Claims

1. A climbing formwork device for thin-wall pier construction, comprising a climbing frame (1), a multi-layer construction platform (2) arranged on the climbing frame (1), a hydraulic jacking mechanism (3) arranged at the bottom of the climbing frame (1), a casting formwork (4) arranged on the inner side of the construction platform (2), and a mold moving mechanism (5) for driving the casting formwork (4) to complete mold closing or demolding, characterized in that: The casting template (4) comprises a first template (4a) distributed front and rear on the front and rear sides of the thin-walled pier and a second template (4b) distributed left and right on the left and right sides of the thin-walled pier. A connecting mechanism is provided at the connection between the first template (4a) and the second template (4b). The connecting mechanism comprises a push-pull mechanism (6) for controlling the relative position of the first template (4a) and the second template (4b) in the front and rear direction and a positioning mechanism (607) for controlling the relative position of the first template (4a) and the second template (4b) in the left and right direction. The first template (4a) and the second template (4b) move in sequence to complete the mold closing or demoulding action. The casting template (4) is provided with a top mold mechanism (8). The top mold mechanism (8) passes through the template plate surface and contacts the thin-walled pier to separate the casting template (4) from the thin-walled pier.

2. A climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: The push-pull mechanism (6) comprises connecting members (601) arranged at the left and right ends of the first template (4a), a snap-in (602) arranged on the connecting member (601), a telescopic driving member (604) fixed at the front and rear ends of the second template (4b), and a snap-in joint (603) driven to move by the telescopic driving member (604), the snap-in joint (603) moving with the second template (4b) to snap into or out of the snap-in (602), and the telescopic driving member (604) snaps into the connecting member (601) via the snap-in joint (603) to drive the first template (4a) to move.

3. A climbing formwork device for thin-wall pier construction according to claim 2, characterized in that: The bayonet ports (602) are linearly spaced along the vertical direction, and each bayonet port (602) is connected to a corresponding bayonet connector (603).

4. A climbing formwork device for thin-wall pier construction according to claim 2 or 3, characterized in that: The clamping joint (603) comprises two limit end blocks (6031) spaced apart from each other in the front and rear direction of the telescopic driving member (604), and a connecting column (6032) connected between the two limit end blocks (6031); an annular clamping groove for clamping the connecting member (601) is formed between the two limit end blocks (6031), and the connecting column (6032) is clamped into the clamping port (602).

5. The climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: The positioning mechanism (607) comprises a positioning groove (701), a positioning block (702) and a pressure spring (703); the positioning groove (701) is arranged on the plate surface of the first template (4a) facing the second template (4b); the positioning block (702) is movably arranged on the second template (4b); the pressure spring (703) is arranged at one end of the positioning block (702) and pushes the other end of the pressure spring (703) to be inserted into the positioning groove (701); and a guiding inclined surface is arranged on the end of the positioning groove (701) inserted into the positioning groove (701); the guiding inclined surface faces the inner side of the second template (4b).

6. The climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: The top mold mechanism (8) comprises a mounting hole (801) penetrating the surface of the casting template (4), a top block (802) movably arranged in the mounting hole (801), and a driving mechanism for driving the top block (802) to enter and exit the mounting hole (801); the mounting holes (801) are arranged in an array up, down, left, and right; and each mounting hole (801) is provided with a top block (802).

7. The climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: The driving mechanism comprises a hollow column (803) arranged on the outer surface of the casting template (4), a screw rod (804) rotatably mounted in the inner cavity of the hollow column (803), a lifting block (805) threadedly mounted on the screw rod (804), a driving motor (806) driving the screw rod (804) to rotate, and a transmission arm (807) connected between the lifting block (805) and the top block (802), and the mounting hole (801) is connected to the inner cavity of the hollow column (803).

8. The climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: The hydraulic lifting mechanism (3) comprises two lifting frames (301) symmetrically distributed on both sides of the bottom of the climbing frame (1), lifting cylinders (302) arranged at both ends of the lifting frames (301), and load-bearing columns (303) supported at the bottom of the climbing frame (1), and the two ends of the lifting frames (301) are movably connected to the two load-bearing columns (303).

9. The climbing formwork device for thin-wall pier construction according to claim 8, characterized in that: Guide grooves (304) are respectively provided at both ends of the lifting frame (301), the load-bearing column (303) is inserted into the guide grooves (304), support blocks (305) are respectively provided on both sides of the guide grooves (304), the support blocks (305) are rotatably mounted on the lifting frame (301), and positioning holes (306) are provided on the load-bearing column (303), and the support blocks (305) are inserted into the positioning holes (306) when the lifting frame (301) is lifted upward.

10. The climbing formwork device for thin-wall pier construction according to claim 1, characterized in that: A support frame (9) is provided on the outer plate surface of the casting formwork (4); the support frame (9) is movably mounted on the construction platform (2); and a guide wheel (10) supported at the bottom of the support frame (9) is provided on the construction platform (2).

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