Pccp pipe concrete base overturning folding template

Abstract

The present application relates to a concrete formwork structure, in particular to a PCCP pipe concrete base overturning folding formwork, which comprises an inclined formwork, the bottom of the inclined formwork is installed on the edge of the first-stage concrete through brick pad installation, the upper part of the first-stage concrete is provided with a prefabricated wedge-shaped pad, the PCCP pipe body is placed above the first-stage concrete through the prefabricated wedge-shaped pad, the inclined formwork comprises a vertical part and an inclined part, the outer side of the vertical part of the inclined formwork is fixedly supported through square wood, the outer end of the inclined part of the inclined formwork is rotatably installed with an extended overturning part, the outer side of the inclined formwork is provided with back ribs along the length direction of the pipe body, and end forms are installed at the front and back end faces of the inclined formwork and the extended overturning part. The inclined part is provided as a overturning type through a hinge connection, and the hinge structure can make the second-stage concrete be uniformly vibrated in stages.

Description

Technical Field

[0001] This invention relates to concrete formwork structures, specifically to a PCCP pipe concrete base flip-folding formwork. Background Technology

[0002] According to the PCCP pipe construction process, the concrete foundation is poured in two stages. After the first stage of concrete is poured and reaches the design strength, the PCCP pipe is installed. After the pipe installation is completed, the second stage of 120° corner concrete is poured. The second stage concrete typically uses a sloping formwork, the size of which is smaller than the design dimensions due to the need to allow for the concrete pouring and unloading opening. This results in areas on the sloping concrete that cannot be vibrated, preventing a tight fit between the second stage concrete and the pipe body, thus failing to effectively support the pipe. Furthermore, the concrete slump is relatively large, requiring manual finishing of the unvibrated areas before they harden and set, leading to a long pouring time. Therefore, there is an urgent need to invent a flip-folding formwork for the PCCP pipe concrete foundation to solve the problems of localized difficulty in vibration compaction and long pouring times. This would eliminate the impact of unvibrated areas on the sloping foundation, ensure proper vibration of the sloping concrete, and improve the quality of concrete construction. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a PCCP pipe concrete base flip-folding template that provides good support and is easy to install and operate, so as to eliminate the impact of the sloped area of ​​the base that cannot be vibrated on the construction, ensure that the sloped concrete can be vibrated normally, and improve the quality of concrete construction.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solution: The present invention discloses a PCCP pipe concrete base flip-folding template, including an inclined template. The bottom of the inclined template is installed on the edge of the primary concrete by means of brick pads. A precast wedge-shaped pad is provided on the upper part of the primary concrete. The PCCP pipe is placed on the primary concrete by means of the precast wedge-shaped pads. The inclined template includes a vertical part and an inclined part. The outer side of the vertical part of the inclined template is fixedly supported by square timber. An extended flipping part is rotatably installed at the outer end of the inclined part of the inclined template. Back ribs are provided at intervals along the length of the pipe on the outer side of the inclined template. End molds are installed at the front and rear ends of the inclined template and the extended flipping part. An auxiliary support body is installed between the inclined template and the extended flipping part. The auxiliary support body is used to assist in static support and dynamic flipping of the extended flipping part.

[0005] Furthermore, a hinge assembly is installed at the outer end of the inclined surface of the inclined template. The extended flipping part is installed at the outer end of the inclined surface of the inclined template through the hinge assembly. The hinge assembly includes a female hinge and a male hinge, which are hinged together by a pivot. Both the female hinge and the male hinge are welded with a pad. The female hinge is welded to the inclined template through the pad, and the male hinge is welded to the extended flipping part through the pad.

[0006] Furthermore, the front and rear ends of the inclined template and the extended flipping part are provided with bolt holes. The bolt holes of the inclined template are locked to the end mold by bolts, and the bolt holes of the extended flipping part are locked to the end mold by wooden wedges.

[0007] Furthermore, the extended flipping part is provided with a back rib on the outside, and the back rib of the extended flipping part is provided corresponding to the back rib of the inclined template. The adjacent back ribs of the extended flipping part are provided with pouring ports at intervals along the length of the pipe.

[0008] Furthermore, the auxiliary support body includes a first parallel plate group and a second parallel plate group, and a hinged connecting rod is rotatably connected between the first parallel plate group and the second parallel plate group. The bottom of the first parallel plate group and the second parallel plate group are provided with longitudinal insert plate seats. The first parallel plate group and the second parallel plate group are respectively installed on the upper side of the inclined template and the extended flipping part through the longitudinal insert plate seats. The top of the first parallel plate group and the second parallel plate group are connected with pins, and the bottom of the pins is provided with magnetic covers for fixing and attracting.

[0009] Furthermore, both the inclined template and the extended flipping part are welded with slot bodies. The cross-section of the slot body is a flat inverted U-shape, and the cross-section of the longitudinal insertion plate seat is a flat C-shape. The longitudinal insertion plate seat can be longitudinally inserted and fixed with the slot body.

[0010] Furthermore, the longitudinal insert plates of the first and second parallel plate groups are each hinged to a pair of parallel support deflection plates via hinge seats. The upper part of the corresponding pair of support deflection plates of the first and second parallel plate groups is hinged to a fixed top plate via hinge seats to form a parallelogram motion structure. The rotation center of the hinge seat of the fixed top plate is located above the fixed top plate. The bottom of the fixed top plate is welded with a pin cylinder for inserting the pin rod.

[0011] Furthermore, each of the upper supports of the deflection plates is provided with a receiving slot for accommodating the pin through which it passes. A tension spring assembly is connected between the lower support deflection plate of the first parallel plate group and the corresponding longitudinal insert plate seat. A tension spring assembly is connected between the upper support deflection plate of the second parallel plate group and the corresponding longitudinal insert plate seat. The tension spring assemblies are all connected by hooks.

[0012] Furthermore, an elastic rubber plate is provided on the outer side of the support deflection plate of the first parallel plate group, and the distance between the two bottom hinges of the first parallel plate group is smaller than the distance between the two bottom hinges of the second parallel plate group.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] (1) The inclined part of the second-stage concrete side formwork of the PCCP pipe concrete base of the present invention can be extended to the intersection of the pipe body by flipping and a concrete pouring port is set every 1m. This solves the problem that the inclined formwork of the conventional second-stage concrete side formwork of the base cannot be directly extended to the pipe body, so that the concrete in the inclined area cannot be vibrated, thus improving the concrete pouring quality and shortening the pouring time.

[0015] (2) The inclined part of the present invention is connected by a hinge and is set to be reversible. The hinge structure can be the common door and window hinges on the market or self-made, which solves the problem that the bottom and corners of the conventional foundation second-stage concrete side formwork pipe are difficult to vibrate in place due to the small working space.

[0016] (3) The present invention is provided with an auxiliary opening support mechanism, which is a detachable structure. It can reduce the impact damage of the hinge after it is flipped up, increase its service life, and provide auxiliary support for the gravity of the entire flip plate. At the same time, it is easy to open and fix, and reduce the resistance to opening the flip plate. Attached Figure Description

[0017] Figure 1 This is an overall cross-sectional view of the inclined template 3 of the present invention in its flipped state;

[0018] Figure 2 This is a schematic diagram showing the position of the pouring port 311 of the inclined template 3 of the present invention;

[0019] Figure 3 This is a schematic diagram showing the connection relationship between the inclined template 3 and the end mold 9 of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the hinge component 6 of the present invention;

[0021] Figure 5 This is an installation structure diagram of the inclined template 3 and the auxiliary support 7 of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the auxiliary support 7 of the present invention;

[0023] Figure 7 This is a simplified diagram showing the geometric movement relationship of the auxiliary support 7, the inclined template 3, and the extended flipping part 31 at the three flipping positions A1 / A2 / A3 of the present invention;

[0024] 1-Pipe body, 2-Phase I concrete, 21-Precast wedge-shaped pad, 3-Sloping template, 31-Extension and flipping part, 311-Pouring port, 32-Back rib, 33-Bolt hole, 34-Slot body, 331-Wooden wedge, 4-Square timber, 5-Brick, 6-Hinge assembly, 61-Mother hinge, 62-Daughter hinge, 63-Rotating shaft, 64-Padded plate body, 7-Auxiliary support body, 71-First parallel plate group, 72-Second parallel plate group, 81-Longitudinal insert plate seat, 82-Supporting deflection plate, 821-Elastic rubber plate, 822-Hanging ear.

[0025] 823-Tension spring assembly, 83-Fixed top plate, 831-Pin cylinder, 83a-Hinge seat, 84-Pin rod, 85-Hinged connecting rod, 9-End mold. Detailed Implementation

[0026] like Figure 1-7 As shown, a PCCP pipe concrete base flip-folding template includes an inclined template 3. The bottom of the inclined template 3 is supported by bricks 5 and installed along the edge of the primary concrete 2. A precast wedge-shaped pad 21 is provided on the upper part of the primary concrete 2. The PCCP pipe body 1 is placed on top of the primary concrete 2 via the precast wedge-shaped pad 21. The inclined template 3 includes a vertical part and an inclined part. The outer side of the vertical part of the inclined template 3 is fixedly supported by square timber 4. An extended flipping part 31 is rotatably installed at the outer end of the inclined part of the inclined template 3. Back ribs 32 are spaced apart along the length of the tube body 1 on the outer side. A hinge assembly 6 is installed at the outer end of the inclined surface of the inclined template 3. The extended flip part 31 is installed at the outer end of the inclined surface of the inclined template 3 through the hinge assembly 6. The hinge assembly 6 includes a female hinge 61 and a male hinge 62, which are hinged by a pivot 63. Both the female hinge 61 and the male hinge 62 are welded with a pad 64. The female hinge 61 is welded to the inclined template 3 through the pad 64, and the male hinge 62 is welded to the extended flip part 31 through the pad 64. Bolt holes 33 are provided on the front and rear end faces of the inclined template 3 and the extended flip part 31. The bolt holes 33 of the inclined template 3 are locked to the end mold 9 by bolts, and the bolt holes 33 of the extended flip part 31 are locked to the end mold 9 by wooden wedges 331. The extended flipping section 31 is provided with a back rib 32 on its outer side. The back rib 32 of the extended flipping section 31 is correspondingly arranged with the back rib 32 of the inclined template 3. Pouring ports 311 are provided at intervals along the length direction of the pipe body 1 between adjacent back ribs 32 of the extended flipping section 31. End molds 9 are installed at the front and rear ends of the inclined template 3 and the extended flipping section 31. An auxiliary support 7 is installed between the inclined template 3 and the extended flipping section 31. The auxiliary support 7 is used to assist in static support and dynamic flipping of the extended flipping section 31.

[0027] The auxiliary support 7 described above is further described below. The auxiliary support 7 includes a first parallel plate group 71 and a second parallel plate group 72. A hinged connecting rod 85 rotatably connects the first parallel plate group 71 and the second parallel plate group 72. Both the first parallel plate group 71 and the second parallel plate group 72 have a longitudinal insert plate seat 81 at their bottom. The first parallel plate group 71 and the second parallel plate group 72 are respectively mounted on the upper side of the inclined template 3 and the extended flip-up part 31 via the longitudinal insert plate seat 81. A pin 84 is connected to the top of the first parallel plate group 71 and the second parallel plate group 72. The bottom of the pin 84 has a magnetic cover for fixing and engaging. Both the inclined template 3 and the extended flip-up part 31 are welded with slot bodies 34. The cross-section of the slot body 34 is a flattened inverted U-shape, and the cross-section of the longitudinal insert plate seat 81 is a flattened C-shape. The longitudinal insert plate seat 81 can be longitudinally inserted and fixed with the slot body 34. Each of the first parallel plate group 71 and the second parallel plate group 72 has a pair of parallel support deflection plates 82 hinged to its longitudinal insert plate seat 81 via a hinge seat 83a. The upper parts of each pair of support deflection plates 82 in the first and second parallel plate groups 71 and 72 are hinged to a fixed top plate 83 via a hinge seat 83a, forming a parallelogram-shaped moving structure. The rotation center of the hinge seat 83a of the fixed top plate 83 is located above the fixed top plate 83. A pin cylinder 831 for inserting the pin 84 is welded to the bottom of the fixed top plate 83. Each support deflection plate 82 has an accommodating opening on its upper part to allow the pin 84 to pass through. A tension spring assembly 823 connects the lower support deflection plate 82 of the first parallel plate group 71 to its corresponding longitudinal insert plate seat 81, and the upper support deflection plate 82 of the second parallel plate group 72 also connects to its corresponding longitudinal insert plate seat 81. Each tension spring assembly 823 is hooked together via a lug 822. The outer side of the support deflection plate 82 of the first parallel plate assembly 71 is provided with an elastic rubber plate 821. The distance between the two bottom hinge seats 83a of the first parallel plate assembly 71 is smaller than the distance between the two bottom hinge seats 83a of the second parallel plate assembly 72. During the flipping process, the pin 84 is removed, thereby releasing the locking effect. The worker can use the pull rope to pull the lower support deflection plate 82 of the first parallel plate assembly 71, thereby generating a linkage effect among the components, driving the extension flipping part 31 to flip upward. During the flipping process, the tension spring assembly 823 generates a pulling force, and the worker can slowly pull it until it reaches the appropriate deflection position, thus facilitating construction operations.

[0028] The inclined template 3 of this invention is designed to be flip-up. In practice, a hinge assembly 6 can be welded every 50cm on the back of the template at the turning point L1. An auxiliary support 7 is inserted as a whole on the inclined template 3 and its extended flip-up part 31. The upper opening of the inclined template 3 extends to be flush with the intersection line of the 120° wrapping line of the pipe body on the pipe body. A concrete pouring port 311 is left every 1m. When pouring concrete, the extended flip-up part 31 of the inclined template 3 is in a flipped state. In this state, it is convenient to vibrate the concrete in the bottom area. When the concrete rises to near the pivot 63 of the hinge assembly 6, the inclined template 3 and the extended flip-up part 31 are completely formed as one. At this time, the pin 84 is inserted to achieve static support and prevent the hinge assembly 6 from being damaged by impact during the vibration process. Then, after aligning the extended flip-up part 31 with the bolt hole 33 of the end mold 9, a wooden wedge 331 is inserted to quickly lock and reinforce it. Concrete is poured until the pouring port 311 is filled. The size of the pouring port 311 can be reasonably set according to the concrete pouring and unloading equipment and tools, which include overhead pump chutes, chutes or hanging tanks.

[0029] The back rib 32 of the inclined template 3 body is bolted to the end mold 9 for reinforcement. Concrete within the pouring port 311 is vibrated using an immersion vibrator, while concrete at the same height outside the pouring port 311 is vibrated using an attached vibrator. Before the initial setting of the poured concrete, a small amount of concrete needs to be removed from the pouring port 311, keeping the amount within the normal loss range, and the base corresponding to the pouring port 311 is then sloped. This invention uses an auxiliary support structure located outside the hinge to buffer impact, provide static support, and facilitate labor-saving opening and turning, thereby increasing the support force of the plate itself during vibration, reducing the vibration impact force on the hinge itself, achieving not only auxiliary support and fixation but also facilitating opening and closing operations, reducing the difficulty of manual turning operations, and improving safety.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A PCCP pipe concrete base turn-down form, characterized by: The system includes a sloping template, the bottom of which is supported by bricks and installed along the edge of the primary concrete. Precast wedge-shaped pads are provided on the upper part of the primary concrete. The PCCP pipe is placed on top of the primary concrete using these precast wedge-shaped pads. The sloping template includes a vertical section and a sloping section. The outer side of the vertical section is fixedly supported by square timber. An extension and flipping section is rotatably installed at the outer end of the sloping section. Back ribs are spaced along the length of the pipe on the outer side of the sloping template. End molds are installed at the front and rear ends of both the sloping template and the extension and flipping section. An auxiliary support is installed between the sloping template and the extension and flipping section, which assists in static support and dynamic flipping of the extension and flipping section. The auxiliary support includes a first parallel plate group and a second parallel plate group. The first parallel plate group and the second parallel plate group are rotatably connected by a hinged connecting rod. The bottom of the first parallel plate group and the second parallel plate group are provided with a longitudinal insert plate seat. The first parallel plate group and the second parallel plate group are respectively installed on the upper side of the inclined template and the extended flipping part through the longitudinal insert plate seat. The top of the first parallel plate group and the second parallel plate group are connected with a pin. The bottom of the pin is provided with a magnetic cover for fixing and attracting.

2. The PCCP pipe concrete base turnover folding formwork according to claim 1, characterized in that: A hinge assembly is installed at the outer end of the inclined section of the inclined template. The extended flipping part is installed at the outer end of the inclined section of the inclined template through the hinge assembly. The hinge assembly includes a female hinge and a male hinge, which are hinged together by a pivot. Both the female hinge and the male hinge are welded with a pad. The female hinge is welded to the inclined template through the pad, and the male hinge is welded to the extended flipping part through the pad.

3. The PCCP pipe concrete base turnover folding formwork according to claim 1, characterized in that: Both the front and rear ends of the inclined template and the extended flipping part are provided with bolt holes. The bolt holes of the inclined template are locked to the end mold by bolts, and the bolt holes of the extended flipping part are locked to the end mold by wooden wedges.

4. The PCCP pipe concrete base flip-folding template according to claim 1, characterized in that: The extended flipping part is provided with a back rib on the outside. The back rib of the extended flipping part is provided in correspondence with the back rib of the inclined template. The adjacent back ribs of the extended flipping part are provided with pouring ports at intervals along the length of the pipe.

5. The PCCP pipe concrete base flip-folding template according to claim 1, characterized in that: Both the inclined template and the extended flipping part are welded with slot bodies. The cross-section of the slot body is a flat inverted U-shape, and the cross-section of the longitudinal insertion plate seat is a flat C-shape. The longitudinal insertion plate seat can be longitudinally inserted and fixed with the slot body.

6. The PCCP pipe concrete base flip-folding template according to claim 1, characterized in that: The first parallel plate group and the second parallel plate group each have a pair of parallel support deflection plates hinged to each other via hinge seats. The upper part of each pair of support deflection plates in the first parallel plate group and the second parallel plate group are each hinged to a fixed top plate via hinge seats to form a parallelogram motion structure. The rotation center of the hinge seat of the fixed top plate is located above the fixed top plate. The bottom of the fixed top plate is welded with a pin cylinder for inserting the pin rod.

7. A PCCP pipe concrete base flip-folding template according to claim 6, characterized in that: The upper part of each of the support deflection plates is provided with a receiving break for accommodating the pin rod to pass through. A tension spring assembly is connected between the lower support deflection plate of the first parallel plate group and the corresponding longitudinal insert plate seat. A tension spring assembly is connected between the upper support deflection plate of the second parallel plate group and the corresponding longitudinal insert plate seat. The tension spring assemblies are all connected by hooks.

8. The PCCP pipe concrete base flip-folding template according to claim 1, characterized in that: The outer side of the support deflection plate of the first parallel plate group is provided with an elastic rubber plate, and the distance between the two bottom hinges of the first parallel plate group is smaller than the distance between the two bottom hinges of the second parallel plate group.

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