Construction template for side wall of bearing platform pit

Abstract

The utility model provides a construction formwork for the side wall of a bearing platform pit, which comprises a side wall formwork, the side wall formwork comprises an opening and closing frame body, a plurality of side formwork assemblies and a plurality of corner formwork assemblies, the side formwork assemblies and the corner formwork assemblies are arranged outside the opening and closing frame body in a surrounding mode, and the corner formwork assemblies are located at corners among the side formwork assemblies and can be folded and unfolded. A formwork matched with a bearing platform pit in shape is formed through connection between the side formwork assembly and the angle formwork assembly, and the opening and closing frame body can control opening and closing of the side formwork assembly and the angle formwork assembly. By arranging the integrated side wall formwork, the side wall pouring formwork can be arranged on the bearing platform cushion layer, so that the side wall of the bearing platform pit and the concrete cushion layer of the basement bottom plate can be poured and formed at the same time, and the problems caused by using a brick moulding bed or a common wood formwork can be effectively solved, for example, the construction period is prolonged, the labor cost is high, and follow-up formwork removal is inconvenient. According to the method, the construction efficiency is improved, the construction cost is reduced, meanwhile, the subsequent waterproof layer arrangement is facilitated, and meanwhile, the integrated formwork structure is convenient to disassemble and assemble quickly.

Description

Technical Field

[0001] The utility model relates to the field of visibility meters, in particular to a construction template for a side wall of a capping pit. Background Art

[0002] Due to their height and weight, high-rise buildings must pay special attention to the strength and stability of their foundation systems during design and construction. As one of the important components of high-rise buildings, the cap plays a key role in evenly transferring the load of the superstructure to the foundation. The cap is a common foundation structure for bearing and distributing loads in engineering buildings. With the continuous development of the economy, the gradual improvement of the infrastructure field and the influence of the concept of building energy conservation, the construction process of the cap foundation has increasingly focused on energy conservation. The cap structure in the relevant technology includes a foundation, pipe piles and a cap body. A cap pit is opened in the foundation. The pipe piles are driven into the cap pit by a pile driver, and one end of the pipe pile protrudes from the pit wall of the cap pit. By pouring concrete into the cap pit, the cap body is formed and fixed to the pipe piles.

[0003] At present, in the process of foundation construction, it is usually necessary to construct a brick formwork on its side wall as the formwork of the foundation, and the brick formwork is set in it as a permanent structure. However, the masonry speed of the brick formwork is slow and it takes a certain amount of time to complete. After masonry, it is necessary to wait for the mortar to harden. In addition, in order to ensure the flatness and smoothness of the concrete surface, it is also necessary to plaster the inside of the brick formwork, which prolongs the overall construction period. At the same time, skilled construction personnel are required to work with auxiliary personnel to complete the corresponding masonry work, resulting in high labor costs. In addition, the brick formwork cannot be reused, which invisibly increases the construction cost. In addition, if ordinary wooden formwork is used, it is not convenient to dismantle it in the narrow space after the foundation is poured, and the waterproof layer is not easy to set. Therefore, it is necessary to propose a new construction method for the side wall of the foundation pit to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a construction template for the side wall of the pedestal pit, so as to solve the problems of long construction period and high labor cost of brick formwork in the prior art, and the problem that ordinary wooden formwork is not convenient to be dismantled in the narrow space after the pedestal is cast, and the waterproof layer is also difficult to set.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a construction template for the side wall of the pedestal pit, including a side wall template, the side wall template includes an opening and closing frame, and a plurality of side mold assemblies and corner mold assemblies arranged outside the opening and closing frame, the corner mold assembly is located at the corner between the plurality of side mold assemblies and can be retracted and expanded, and a template adapted to the shape of the pedestal pit is formed by the connection between the side mold assemblies and the corner mold assemblies, and the opening and closing frame can control the opening and closing of the side mold assemblies and the corner mold assemblies.

[0006] In a preferred embodiment, the opening and closing frame body includes a fixed frame body, and a plurality of sliding connection parts are arranged outside the fixed frame body. The sliding connection parts correspond to the side mold components and the corner mold components one by one. A push-pull mechanism for controlling the synchronous opening and closing of the side mold components and the corner mold components is also arranged on the fixed frame body.

[0007] In a preferred embodiment, the fixed frame body includes symmetrically arranged bottom support frames and top support frames, and a plurality of connecting vertical rods are arranged between the two.

[0008] In a preferred embodiment, the sliding connection part includes two symmetrically arranged sliding grooves. The two sliding grooves are respectively arranged outside the bottom support frame and the top support frame. The top and the front end of the sliding groove are both open, and limiting sliding grooves are arranged on the opposite two inner walls.

[0009] In a preferred embodiment, the push-pull mechanism includes a lifting frame slidably sleeved on all the connecting vertical rods. A plurality of groups of push-pull rods are hinged outside the lifting frame. The other end of each group of push-pull rods is hinged to the corresponding side mold component or corner mold component. A plurality of push-pull hydraulic cylinders with telescopic ends connected to the lifting frame are arranged on the bottom support frame or the top support frame.

[0010] In a preferred embodiment, the fixed frame body further includes a plurality of lifting lugs arranged on the top of the top support frame.

[0011] In a preferred embodiment, the side mold component includes a side template. A sliding block slidably inserted into the sliding groove is arranged inside the side template. First limiting sliders slidably connected to the limiting sliding grooves are arranged on both sides of the end of the sliding block. The push-pull rod is hinged to the inside of the side template.

[0012] In a preferred embodiment, the corner mold component includes a corner template. Flipping connection templates are hinged to both ends of the corner template. Slopes facilitating opening and closing are arranged at the joints of the flipping connection templates with the corner template and the side template. A push-pull frame slidably inserted into the sliding groove is arranged inside the corner mold component. The push-pull rod is hinged to the push-pull frame. A control mechanism for controlling the opening and closing of the flipping connection templates is arranged in the push-pull frame.

[0013] In a preferred embodiment, the push-pull frame includes a reinforcing plate arranged inside the corner template and a C-shaped frame arranged on the back of the reinforcing plate. The C-shaped frame is slidably inserted into the corresponding two sliding grooves. Second limiting sliders slidably connected to the limiting sliding grooves are arranged on the upper and lower sides of the front end of the C-shaped frame. Push-pull sliding grooves are arranged on the opposite inner bottom wall and inner top wall of the C-shaped frame;

[0014] The control mechanism includes a moving beam movably arranged in the push-pull frame. Moving sliders that are slidably connected to the push-pull sliding grooves are arranged at both the upper and lower ends of the moving beam. A plurality of jacking hydraulic cylinders are arranged on the back surface of the reinforcement plate, and the telescopic ends of the jacking hydraulic cylinders are connected to the moving beam. A plurality of control rods are respectively hinged on both sides of the moving beam, and the other ends of the control rods are hinged to the corresponding flipping connection templates.

[0015] The utility model provides a construction formwork for the side wall of a pile cap pit. By setting an integrated side wall formwork, a side wall casting formwork can be set on the pile cap cushion layer, so that the side wall of the pile cap pit and the concrete cushion layer of the basement floor can be cast and formed simultaneously, effectively solving the problems brought by using brick formwork or ordinary wood formwork, such as extended construction period, high labor cost, and inconvenient subsequent formwork removal. This method not only improves construction efficiency but also reduces construction costs. At the same time, it is convenient for subsequent waterproof layer setting. Moreover, the integrated formwork structure is convenient for quick disassembly and assembly, as well as repeated hoisting and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further illustrates the utility model with reference to the drawings and embodiments:

[0017] Figure 1 is the sectional structure diagram of the pile cap pit of the utility model;

[0018] Figure 2 is the formwork closing structure diagram of the side wall formwork of the utility model;

[0019] Figure 3 is the formwork retracting structure diagram of the side wall formwork of the utility model;

[0020] Figure 4 is the utility model Figure 2 top view structure diagram;

[0021] Figure 5 is the utility model Figure 3 top view structure diagram;

[0022] Figure 6 is the structure diagram of the opening and closing frame body of the utility model;

[0023] Figure 7 is the exploded structure diagram of the opening and closing frame body of the utility model;

[0024] Figure 8 is the structure diagram of the corner formwork assembly of the utility model;

[0025] Figure 9 is the exploded structure diagram of the corner formwork assembly of the utility model;

[0026] Figure 10 is the structure diagram of the side formwork assembly of the utility model;

[0027] In the figure: bearing platform pit 1; pile head 2; bearing platform concrete cushion 3; side wall formwork 4; opening and closing frame 40; fixed frame 400; bottom support frame 4001; top support frame 4002; connecting vertical pole 4003; lifting lug 4004; sliding connection part 401; sliding groove 4010; limit sliding groove 4011; push-pull mechanism 402; lifting frame 4020; push-pull rod 4021; push-pull hydraulic cylinder 4022; side formwork assembly 41; side formwork 410; sliding block 411; first limit sliding block 412; corner formwork assembly 42; corner formwork 420; strengthening plate 4220; C-shaped frame 4221; second limit sliding block 4222; push-pull sliding groove 4223; flipping connection formwork 421; push-pull frame 422; control mechanism 423; top push hydraulic cylinder 4230; moving beam 4231; moving sliding block 4232; control rod 4233; bottom plate concrete cushion 5. Detailed implementation manners

[0028] Example 1

[0029] As Figure 1 shown, a construction method for the side wall of a bearing platform pit, the method includes:

[0030] S1. Excavate the bearing platform pit 1 to a preset depth at a preset position, ensure that the size and depth of the foundation pit meet the requirements on the design drawing, and make the protruding height of the pile head 2 meet the requirements.

[0031] S2. Level the bottom and side walls of the bearing platform pit 1, and the bottom plate, where the bottom plate is the basement bottom plate, that is, the bottom plate around the bearing platform pit, and ensure that its flatness meets the design requirements for cushion pouring.

[0032] S3. Pour the bearing platform concrete cushion 3 at the bottom of the bearing platform pit 1, and the thickness of the cushion shall meet the design requirements to enhance the bearing capacity and waterproof performance of the bottom of the foundation pit.

[0033] S4. After the strength of the bearing platform concrete cushion 3 meets the requirements, surround the side wall of the bearing platform pit 1 with the side wall formwork 4 along it, and there is a pouring gap reserved between the two. The top of the side wall formwork 4 is higher than the height of the bottom plate concrete cushion 5 for subsequent concrete pouring operations, and ensure that the side wall concrete can be smoothly poured and reach the design height;

[0034] S5. Pour the bottom plate concrete cushion 5, and at the same time pour the pouring gap reserved in step S4, ensure that the concrete can fully fill the space between the side wall formwork 4 and the side wall of the bearing platform pit 1, make the bearing platform structure more stable, and after the strength of the concrete reaches the design requirements, remove the side wall formwork 4.

[0035] Through the above steps, the construction of the side wall of the bearing platform pit is completed.

[0036] With such a design, the masonry time and labor cost of the brick formwork can be effectively saved, and the simultaneous pouring and forming of the side wall of the pile cap pit 1 and the concrete cushion of the basement floor can be realized. This method effectively solves the problems of long construction period and high labor cost of the brick formwork. In addition, by using the concrete of the formed side wall of the pile cap pit 1 as the pile cap formwork, compared with ordinary wooden formwork, there is no problem of formwork removal in a narrow space. The side wall formwork 4 can also be removed in the space where the pile cap has not been poured in the pile cap pit 1, and it is also convenient to set the waterproof layer on the side wall concrete of the pile cap pit 1.

[0037] Through the above steps, the problems brought by using brick formwork or ordinary wooden formwork, such as extended construction period, high labor cost, and inconvenient subsequent formwork removal, can be effectively solved. This method not only improves the construction efficiency but also reduces the construction cost, and is also convenient for subsequent waterproof layer setting.

[0038] Embodiment 2

[0039] Further described in combination with Embodiment 1, as Figures 2 - 10 shown in the structure, in order to further improve the disassembly and assembly efficiency of the side wall formwork 4, this embodiment proposes a construction formwork for the side wall of the pile cap pit, including a side wall formwork (4). The side wall formwork 4 includes an opening and closing frame body 40, and a plurality of side formwork components 41 and corner formwork components 42 surrounding the outside of the opening and closing frame body 40. The corner formwork components 42 are located at the corners between the plurality of side formwork components 41 and can be retracted and extended. A formwork adapted to the shape of the pile cap pit 1 is formed through the connection between the side formwork components 41 and the corner formwork components 42, and the opening and closing frame body 40 can control the opening and closing of the side formwork components 41 and the corner formwork components 42.

[0040] It should be noted that the opening and closing frame body 40 is a multi-prismatic shape, the number of the side formwork components 41 and the corner formwork components 42 is adapted to the shape of the pile cap pit 1, and the specific number of edges of the opening and closing frame body 40 is the sum of the number of the side formwork components 41 and the corner formwork components 42. For example, in this embodiment, the pile cap pit 1 is rectangular, so the number of both the side formwork components 41 and the corner formwork components 42 is four, the opening and closing frame body 40 is an octagonal prism, and the eight edges respectively correspond to the side formwork components 41 and the corner formwork components 42.

[0041] With such a design, the opening and closing frame body 40 can be used to control the opening and closing of the side formwork components 41 and the corner formwork components 42, and the retractable and extendable corner formwork components 42 provide space for the opening and closing of the side formwork components 41 and the corner formwork components 42.

[0042] In a preferred solution, the opening and closing frame body 40 includes a fixed frame body 400. A plurality of sliding connection parts 401 are arranged outside the fixed frame body 400. In this embodiment, the number of the sliding connection parts 401 is eight, and the sliding connection parts 401 correspond to the side formwork components 41 and the corner formwork components 42 one by one. A push-pull mechanism 402 for controlling the synchronous opening and closing of the side formwork components 41 and the corner formwork components 42 is also arranged on the fixed frame body 400.

[0043] Among them, the fixed frame body 400 includes a symmetrically arranged bottom support frame 4001 and a top support frame 4002, and a plurality of connecting vertical rods 4003 are arranged between the two. In this embodiment, the number of connecting vertical rods 4003 is four, and the bottom support frame 4001 and the top support frame 4002 are connected by the connecting vertical rods 4003.

[0044] Through the above description, both the bottom support frame 4001 and the top support frame 4002 in this embodiment are octagonal frames, and eight sliding connection parts 401 are respectively arranged on their eight edges. Through the design of the octagonal frame, the floor area of the side wall formwork 4 can be effectively reduced, and at the same time, the unnecessary contact between the side wall formwork 4 and the pile head 2 can be avoided.

[0045] In addition, the sliding connection part 401 specifically includes two symmetrically arranged sliding grooves 4010. The two sliding grooves 4010 are respectively arranged outside the bottom support frame 4001 and the top support frame 4002. The top and the front end of the sliding groove 4010 are both open, and limiting sliding grooves 4011 are arranged on the opposite two inner walls.

[0046] Secondly, the push-pull mechanism 402 includes a lifting frame 4020 that is slidably sleeved on all the connecting vertical rods 4003. The shape of the lifting frame 4020 is the same as that of the bottom support frame 4001 and the top support frame 4002, and holes for the connecting vertical rods 4003 to pass through are arranged thereon. A plurality of groups of push-pull rods 4021 are hinged to the outside of the lifting frame 4020. The other end of each group of push-pull rods 4021 is hinged to the corresponding side formwork assembly 41 or corner formwork assembly 42. A plurality of push-pull hydraulic cylinders 4022 with telescopic ends connected to the lifting frame 4020 are arranged on the bottom support frame 4001 or the top support frame 4002. In this embodiment, the number of push-pull hydraulic cylinders 4022 is four, and they are arranged on the top support frame 4002. The push-pull hydraulic cylinders 4022 and the connecting vertical rods 4003 are arranged alternately.

[0047] During use, through the push and pull of the push-pull hydraulic cylinders 4022, the lifting frame 4020 can slide up and down outside the connecting vertical rods 4003, and then the side formwork assembly 41 and the corner formwork assembly 42 can be synchronously pushed and pulled by using the push-pull rods 4021, so as to realize the opening and closing of the side formwork assembly 41 and the corner formwork assembly 42.

[0048] In a preferred solution, the fixed frame body 400 further includes a plurality of lifting lugs 4004 arranged on the top of the top support frame 4002. In this embodiment, the number of lifting lugs 4004 is four, and they are arranged alternately with the push-pull hydraulic cylinders 4022 on the top of the top support frame 4002. The effect of hoisting the entire formwork structure can be achieved through the four lifting lugs 4004.

[0049] In a preferred embodiment, the side mold assembly 41 includes a side template 410. On the inner side of the side template 410, there are sliding blocks 411 slidably inserted into the sliding grooves 4010. The number of sliding blocks 411 is two, corresponding to the two sliding grooves 4010 respectively, thus realizing the sliding connection relationship between the side template 410 and the sliding grooves 4010. On both sides of the end of the sliding block 411, there are first limit sliders 412 slidably connected to the limit sliding grooves 4011. The sliding connection between the first limit sliders 412 and the limit sliding grooves 4011 facilitates the limiting function and avoids the situation of falling off. The push-pull rod 4021 is hinged to the inner side of the side template 410. Then, when the lifting frame 4020 is lifted or lowered, the side template 410 can be pushed and pulled to achieve the opening and closing effect.

[0050] It should be noted that the number of a set of push-pull rods 4021 corresponding to the side template 410 is not less than two.

[0051] In a preferred embodiment, the corner mold assembly 42 includes a corner template 420. In this embodiment, the corner template 420 is an arrow-shaped template with a ninety-degree corner. When the bearing platform pit 1 is of other shapes, the corner template 420 can also be a flat template.

[0052] Both ends of the corner template 420 are hinged with flipping connection templates 421. By rotating the flipping connection templates 421 around the hinge points, the opening and closing of itself are realized. Thus, when it is opened, the space required for the expansion and contraction between the corner mold assembly 42 and the side mold assembly 41 can be vacated.

[0053] Slope surfaces facilitating opening and closing are provided at the connection parts between the flipping connection templates 421 and the corner template 420 and the side template 410, which can effectively avoid the situation of collision and improve the sealing performance of the connection parts appropriately.

[0054] On the inner side of the corner mold assembly 42, there is a push-pull frame 422 slidably inserted into the sliding grooves 4010, thus realizing the sliding connection with the sliding grooves 4010. The push-pull rod 4021 is hinged to the push-pull frame 422. Then, by lifting and lowering the lifting frame 4020, the corner mold assembly 42 is pushed and pulled to achieve the opening and closing effect.

[0055] A control mechanism 423 for controlling the opening and closing of the flipping connection templates 421 is arranged in the push-pull frame 422.

[0056] It should be noted that the size of the sliding grooves 4010 is adapted to the push-pull frame 422 of the corresponding corner mold assembly 42 or the sliding blocks 411 of the side mold assembly 41.

[0057] In a preferred embodiment, the push-pull frame 422 includes a reinforcing plate 4220 disposed inside the corner formwork 420 and a C-shaped frame 4221 disposed on the back of the reinforcing plate 4220. In this embodiment, the reinforcing plate 4220 is disposed at the corner inside the corner formwork 420 and is triangular, which can effectively enhance the structural strength of the corner formwork 420.

[0058] The C-shaped frame 4221 is slidably inserted into two corresponding sliding grooves 4010. Second limiting sliders 4222 slidably connected to the limiting sliding grooves 4011 are disposed on both the upper and lower sides of the front end of the C-shaped frame 4221, thereby realizing the stable sliding connection between the side form assembly 41 and the sliding grooves 4010.

[0059] Push-pull sliding grooves 4223 are disposed on both the opposite inner bottom wall and inner top wall of the C-shaped frame 4221.

[0060] The control mechanism 423 includes a moving beam 4231 movably disposed in the push-pull frame 422. Moving sliders 4232 slidably connected to the push-pull sliding grooves 4223 are disposed at both the upper and lower ends of the moving beam 4231, and the moving beam 4231 can slide in the frame groove of the C-shaped frame 4221.

[0061] A plurality of jacking hydraulic cylinders 4230 are disposed on the back of the reinforcing plate 4220. In this embodiment, the number of the jacking hydraulic cylinders 4230 is two, and the telescopic ends of the jacking hydraulic cylinders 4230 are connected to the moving beam 4231, so as to push the moving beam 4231 to slide in the C-shaped frame 4221.

[0062] A plurality of control rods 4233 are respectively hinged to both sides of the moving beam 4231. In this embodiment, the number of the control rods 4233 on one side is two, and the other ends of the control rods 4233 are hinged to the corresponding flipping connection formwork 421. Therefore, when the jacking hydraulic cylinder 4230 pushes and pulls the moving beam 4231 to move, the moving beam 4231 can control the flipping connection formwork 421 through the control rods 4233 to realize the opening and closing effect.

[0063] In this embodiment, by providing the side wall formwork 4 with integrated opening and closing, the effects of quickly formwork and removing formwork for the side wall of the bearing platform pit 1 can be realized, and it can be circulated and used in different bearing platform pits 1, greatly improving the formwork efficiency and further improving the construction efficiency of this method.

[0064] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations to the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A construction formwork for the side wall of a pile cap pit, including a side wall formwork (4), characterized in that: The side wall formwork (4) includes an opening and closing frame body (40), and a plurality of side formwork components (41) and corner formwork components (42) surrounding the outside of the opening and closing frame body (40). The corner formwork components (42) are located at the corners between the plurality of side formwork components (41) and are retractable. A formwork adapted to the shape of the pile cap pit (1) is formed through the connection between the side formwork components (41) and the corner formwork components (42). The opening and closing frame body (40) can control the opening and closing of the side formwork components (41) and the corner formwork components (42).

2. The construction formwork for the side wall of the pile cap pit according to claim 1, wherein: The opening and closing frame body (40) includes a fixed frame body (400). A plurality of sliding connection parts (401) are arranged outside the fixed frame body (400). The sliding connection parts (401) correspond to the side formwork components (41) and the corner formwork components (42) one by one. A push-pull mechanism (402) for controlling the synchronous opening and closing of the side formwork components (41) and the corner formwork components (42) is also arranged on the fixed frame body (400).

3. The construction formwork for the side wall of the pile cap pit according to claim 2 is characterized in that: The fixed frame body (400) includes symmetrically arranged bottom support frames (4001) and top support frames (4002), and a plurality of connecting vertical rods (4003) are arranged between the two.

4. The construction formwork for the side wall of the bearing platform pit according to claim 3, characterized in that: The sliding connection part (401) includes two symmetrically arranged sliding grooves (4010). The two sliding grooves (4010) are respectively arranged outside the bottom support frame (4001) and the top support frame (4002). The top and front ends of the sliding groove (4010) are both open, and limiting sliding grooves (4011) are arranged on the opposite two inner walls.

5. The construction formwork for the side wall of the pile cap pit according to claim 4, characterized in that: The push-pull mechanism (402) includes a lifting frame (4020) slidably sleeved on all the connecting vertical rods (4003). A plurality of groups of push-pull rods (4021) are hinged outside the lifting frame (4020). The other end of each group of push-pull rods (4021) is hinged to the corresponding side formwork component (41) or corner formwork component (42). A plurality of push-pull hydraulic cylinders (4022) with telescopic ends connected to the lifting frame (4020) are arranged on the bottom support frame (4001) or the top support frame (4002).

6. The construction formwork for the side wall of the pile cap pit according to any one of claims 3-5, characterized in that: The fixed frame body (400) further includes a plurality of lifting lugs (4004) arranged on the top of the top support frame (4002).

7. The construction formwork for the side wall of the bearing platform pit according to claim 5, characterized in that: The side formwork component (41) includes a side formwork (410). A sliding block (411) slidably inserted into the sliding groove (4010) is arranged inside the side formwork (410). First limiting sliders (412) slidably connected to the limiting sliding grooves (4011) are arranged on both sides of the end of the sliding block (411). The push-pull rod (4021) is hinged to the inside of the side formwork (410).

8. The construction formwork for the side wall of the pile cap pit according to claim 5 or 7, characterized in that: The corner formwork component (42) includes a corner formwork (420). Flipping connection formworks (421) are hinged at both ends of the corner formwork (420). Slopes facilitating opening and closing are arranged at the connections between the flipping connection formworks (421) and the corner formwork (420) and the side formwork (410). A push-pull frame (422) slidably inserted into the sliding groove (4010) is arranged inside the corner formwork component (42). The push-pull rod (4021) is hinged to the push-pull frame (422). A control mechanism (423) for controlling the opening and closing of the flipping connection formwork (421) is arranged in the push-pull frame (422).

9. The construction formwork for the side wall of the pile cap pit according to claim 8, characterized in that: The push-pull frame (422) includes a reinforcing plate (4220) disposed inside the corner template (420), and a C-shaped frame (4221) disposed on the back surface of the reinforcing plate (4220). The C-shaped frame (4221) is slidably inserted into two corresponding sliding grooves (4010). Second limit sliders (4222) that are slidably connected to the limit sliding grooves (4011) are disposed on both the upper and lower sides of the front end of the C-shaped frame (4221). Push-pull sliding grooves (4223) are disposed on both the opposite inner bottom wall and inner top wall of the C-shaped frame (4221). The control mechanism (423) includes a moving beam (4231) movably disposed in the push-pull frame (422). Moving sliders (4232) that are slidably connected to the push-pull sliding grooves (4223) are disposed on both the upper and lower ends of the moving beam (4231). A plurality of jacking hydraulic cylinders (4230) are disposed on the back surface of the reinforcing plate (4220). The telescopic end of the jacking hydraulic cylinder (4230) is connected to the moving beam (4231). A plurality of control rods (4233) are respectively hinged on both sides of the moving beam (4231). The other end of the control rod (4233) is hinged to the corresponding flipping connection template (421).

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