Turnover formwork structure and construction method

Abstract

The invention discloses a turnover formwork structure and a construction method. The turnover formwork structure comprises a formwork body, a clamp, an opposite-pulling piece and a lining. The multiple formwork bodies are divided into two sets, and the two sets of formwork bodies are oppositely arranged to form a pouring groove. The lower portion of the clamp is open and used for clamping the two formwork bodies, and the upper portion of the clamp is connected with the opposite-pulling piece. The opposite-pulling piece is used for applying clamping force for clamping the template body; the lining is used for being inserted into the clamp so that the width of the pouring groove can be prevented from being reduced. The construction method is based on the turnover formwork structure. The clamp is matched with the opposite-pulling piece to preliminarily fasten the formwork body, the lining is matched with the opposite-pulling piece to fasten the formwork body under the condition that the size of a pouring groove is ensured, the formwork body is prevented from expanding and / or leaking, the concrete forming effect is better, the compactness is larger after concrete is solidified, and the concrete quality is improved. And the quality of the concrete is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction formwork, and in particular to a turnover formwork structure and a construction method. Background Art

[0002] During the construction period, as long as it involves rooms with water and electricity (such as toilets, kitchens, power distribution rooms, water and electricity wells, etc.), parapets and expansion joints, the post-casting method is generally used. Generally, this part needs to be poured with anti-seepage concrete with a height of about 300mm (the specific height is determined by referring to the design drawings). In the prior art, the finished concrete inner support formwork is generally tightened step by step during actual on-site construction. This method is not firmly reinforced and the concrete pouring of the lining part is not dense, resulting in poor molding effect and the risk of leakage. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the prior art adopts a step-by-step tightening reinforcement method to construct anti-slope fine stone anti-seepage concrete, and the purpose is to provide a turnover formwork structure and a construction method to solve the above-mentioned problem.

[0004] The present invention is achieved through the following technical solutions:

[0005] In a first aspect, the present invention provides a turnable formwork structure, comprising a formwork body, a clamp, a tensioning member and an inner liner;

[0006] The template bodies are provided in plurality and divided into two groups, and the two groups of template bodies are arranged opposite to each other to form a casting trough;

[0007] The lower part of the clamp is open and used to clamp two formwork bodies, and the upper part of the clamp is connected to the tensioning member;

[0008] The tensioning member is used to apply a clamping force to clamp the formwork body;

[0009] The liner is intended to be plugged into the fixture to avoid a reduction in the width of the casting trough.

[0010] In a possible design, the template body has relative inner and outer side surfaces, and the inner side surface of the template body is provided with a plurality of positioning rods, which are divided into two groups and respectively located on both sides of the casting trough. Accordingly, the two template bodies are respectively abutted against one group of positioning rods; the outer side surface of the template body is connected to the clamp.

[0011] In a possible design, the template body and the fixture are connected via an intermediate plate.

[0012] In one possible design, both the formwork body and the clamps are made of wooden boards.

[0013] In one possible design, the fixture includes a top plate and side plates;

[0014] The two ends of the top plate are respectively connected to one of the side plates, and accordingly, two side plates are provided;

[0015] The side plates are connected to the top plate and extend downwards, and accordingly, an open cavity for connecting the template body is formed between the two side plates.

[0016] In a possible design, the side panels are vertically arranged, and the upper ends of the side panels are connected to the ends of the top panels, and the lower ends of the side panels extend downward. Accordingly, the top panel and the side panels are constructed as U-shaped panels with openings facing downward.

[0017] In a possible design, the tensioning member includes a screw rod, a pad and a tensioning nut; the screw rod is passed through the clamp, and both ends of the screw rod are passed through the outside of the clamp; two pads are provided and are respectively sleeved on the two ends of the screw rod, and the pads are located on the outside of the clamp; two tensioning nuts are provided and are respectively sleeved on the two ends of the screw rod, and the tensioning nuts are located on the outside of the pads.

[0018] In one possible design, the liner is constructed as steel bars with flat ends.

[0019] In a possible design, the casting trough is provided with an inner support for maintaining the spacing of the formwork body, and the distance between the inner support and the clamp is 90-110 mm.

[0020] In a second aspect, the present invention provides a construction method based on the above-mentioned turnable formwork structure, comprising the following steps:

[0021] S1: Positioning and laying out the lines; cutting the concrete according to the positioning lines and chiseling until the coarse aggregate is exposed;

[0022] S2: Set the positioning rods, the distance between two adjacent positioning rods shall not exceed 50cm, and the upper end of the positioning rod shall not exceed 10cm beyond the top surface of the concrete;

[0023] S3: Using the positioning rod as a reference, installing the revolving formwork and the inner support;

[0024] S4: Concrete pouring, curing and demoulding, and removing the internal support within 5 minutes after concrete vibration;

[0025] S5: Repeat S1-S4 to reuse the turnaround template.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] The clamps cooperate with the tension members to preliminarily fasten the formwork body, and the liner cooperates with the tension members to fasten the formwork body while ensuring the size of the casting trough, so as to avoid the formwork body from expanding and / or leaking. The concrete molding effect is better, the density of the concrete is greater after solidification, and the quality of the concrete is effectively improved. The concrete model is not easy to deviate, the size is standard and uniform, the leakage resistance is good, and the appearance is good.

[0028] After the concrete solidifies, the turnover formwork structure can be dismantled and circulated. It is durable and not easily damaged and can be reused many times, which extends the turnover use times of the turnover formwork structure and enables repeated use to reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0030] Figure 1 It is a structural schematic diagram of a turnover template structure.

[0031] Figure 2 The figure is a schematic diagram of a top view of a turnable template structure.

[0032] Figure 3 The present invention is a schematic flow chart of a construction method based on the aforementioned turnaround formwork structure.

[0033] Marks and corresponding parts names in the attached drawings:

[0034] 100, formwork body; 200, clamp; 201, top plate; 202, side plate; 300, tension member; 301, screw rod; 302, pad; 303, tension nut; 400, lining; 500, positioning rod; 600, middle plate; 700, inner support. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0036] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0037] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0039] Example:

[0040] In the prior art, after the concrete solidifies, the lining components used in the step-by-step reinforcement method cannot be removed, resulting in poor overall density of the concrete structure, which not only affects the molding effect, but also poses a risk of leakage. Based on this, a revolving formwork structure is proposed, specifically:

[0041] like Figure 1-Figure 3 As shown, a turnable formwork structure includes a formwork body 100, a clamp 200, a tensioning member 300 and a liner 400;

[0042] The template bodies 100 are provided in plurality and divided into two groups, and the two groups of template bodies 100 are arranged opposite to each other to form a casting trough;

[0043] The lower part of the clamp 200 is open and used to clamp the two template bodies 100, and the upper part of the clamp 200 is connected to the tension member 300;

[0044] The tensioning member 300 is used to apply a clamping force to clamp the template body 100;

[0045] The liner 400 is used to be inserted into the fixture 200 to prevent the width of the casting groove from being reduced.

[0046] The template body 100 is used to form a casting trough. According to actual construction requirements, the trough type, length, width and other parameters of the casting trough are selected to meet different construction requirements. Concrete can be poured into the casting trough to form any suitable structure such as an anti-ridge.

[0047] It is easy to understand that after pouring concrete into the casting trough, in order to avoid the mold expansion phenomenon due to the loose support of the template body 100, a clamp 200 is set outside the template body 100, and a force is applied to the template through the clamp 200 to ensure that the template body 100 can always be in the designed position, overcome the lateral pressure of the concrete and avoid mold expansion.

[0048] In addition, the clamp 200 is configured as a lower open structure, and the clamp 200 clamps and connects the template body 100 through the lower open. At the same time, the clamp 200 is provided with a tension member 300, which is used to apply tension and tighten the clamp 200 so that the clamp 200 clamps the template body 100.

[0049] The liner 400 is also arranged in the fixture 200 to avoid the liner 400 being arranged in the casting trough and avoiding the liner 400 being buried in the concrete. On the one hand, it helps to improve the density of the concrete after solidification and improve the quality of the concrete. On the other hand, it is also conducive to the turnover of the liner 400 and reduces the construction cost. The liner 400 cooperates with the tie member 300. The width of the liner 400 is adapted to the width of the casting trough. When the liner 400 is inserted into the fixture 200, the operator can adjust the tie member 300 so that the fixture 200 clamps the template body 100.

[0050] Based on this, in the revolvable formwork structure, the clamp 200 cooperates with the tie member 300 to preliminarily fasten the formwork body 100, and the liner 400 cooperates with the tie member 300 to ensure the fastening of the formwork body 100 while ensuring the casting groove size, so as to avoid the formwork body 100 from expanding and / or leaking, and the concrete molding effect is better, and the density of the concrete is greater after solidification, which effectively improves the quality of the concrete. After the concrete solidifies, the revolvable formwork structure can be disassembled and turned around for repeated use to reduce construction costs.

[0051] During operation, the formwork body 100 is arranged along the designed position of the casting trough, and then the clamp 200, the tension member 300 and the lining 400 are installed, and the formwork body 100 is pre-tightened by the cooperation between the tension member 300 and the lining 400; finally, concrete is poured. After the concrete solidifies and reaches the strength standard, the recyclable formwork structure can be removed. Based on this, the recyclable formwork structure has the advantages of simple and convenient disassembly and assembly and easy use.

[0052] It is easy to understand that the formwork body 100 has a certain length. In order to ensure the construction quality of concrete, a plurality of clamping groups are arranged outside the formwork body 100, and each clamping group includes a clamp 200, a tension member 300 and an inner liner 400. In addition, according to specific construction requirements, those skilled in the art select parameters such as the position of the clamping group, the spacing between adjacent clamping groups, etc.

[0053] In one possible implementation, the template body 100 has relative inner and outer side surfaces, and the inner side surface of the template body 100 is provided with a plurality of positioning rods 500, and the plurality of positioning rods 500 are divided into two groups and are respectively located on both sides of the casting trough. Accordingly, the two template bodies 100 are respectively abutted against one group of positioning rods 500; the outer side surface of the template body 100 is connected to the clamp 200.

[0054] Based on the above design, for the template body 100, a positioning rod 500 is preferably provided on the inner side of the template body 100, and the positioning rod 500 cooperates with the lining 400, so that the operator can adjust the tension member 300 to a predetermined tension, at which time the template body 100 is pressed against the positioning rod 500. When the positioning rod 500 is arranged, the positioning rod 500 is arranged along the designed position of the casting trough, and the template body 100 is arranged based on the positioning rod 500, so that the template body 100 can be arranged quickly and accurately.

[0055] Furthermore, when the template body 100 is pre-tightened, the positioning rod 500 is used to limit the position of the template body 100 to ensure that the size of the casting trough meets the design requirements, and also helps to increase the upper limit of the tension applied to the pull member 300 to ensure that mold expansion, leakage and the like will not occur.

[0056] Optionally, the positioning rod 500 preferably uses any suitable existing positioning rib, or the positioning rod 500 may also use any other suitable shaft rod part.

[0057] In a possible implementation, the template body 100 and the clamp 200 are connected via an intermediate plate 600. Based on the above design, if the opening width of the clamp 200 is large, in order to ensure that the clamp 200 can abut the template body 100, the intermediate plate 600 is inserted between the clamp 200 and the template body 100 to achieve the connection between the two and transmit the force.

[0058] Preferably, if Figure 1 As shown, two intermediate plates 600 are provided and spaced apart at the upper and lower ends of the outer side of the template body 100. Thus, the width requirement of a single intermediate plate 600 is reduced, and the convenience of using the intermediate plate 600 is improved.

[0059] It is worth noting that the positioning rod 500 and the middle plate 600 can be made of any suitable material selected at the construction site to minimize the construction cost.

[0060] In a possible implementation, both the formwork body 100 and the clamp 200 are made of wood. Based on the above design, the wood not only has excellent physical properties, adapts to a variety of environments, and can ensure the quality of concrete pouring, but also has durability, is not easy to damage, and can be reused many times, thereby extending the number of times the recyclable formwork structure can be used.

[0061] It is easy to understand that the template body 100, the clamp 200 and the middle plate 600 can also be made of any other suitable existing materials, with a wide range of choices to adapt to different usage environments.

[0062] In a possible implementation, the fixture 200 includes a top plate 201 and a side plate 202;

[0063] The two ends of the top plate 201 are respectively connected to one of the side plates 202, and accordingly, two side plates 202 are provided;

[0064] The side plates 202 are connected to the top plate 201 and extend downward. Accordingly, an open cavity for connecting the template body 100 is formed between the two side plates 202 .

[0065] Based on the above design, the top plate 201 is connected to the side plate 202, so that at least the lower end of the top plate 201 is in a concave shape, and the concave shape has a concave groove, which is an open cavity for clamping the template body 100. If necessary, the upper end of the side plate 202 can extend above the top plate 201 to serve as a handle for disassembling the clamp 200, or to play any other suitable role.

[0066] Alternatively, if Figure 1 As shown, the side plate 202 is vertically arranged, and the upper end of the side plate 202 is connected to the end of the top plate 201, and the lower end of the side plate 202 extends downward. Accordingly, the top plate 201 and the side plate 202 are constructed as U-shaped plates with openings facing downward.

[0067] During operation, the operator holds the clamp 200, makes the open cavity face downward and aligns with the casting trough, and places the clamp 200 downward so that the template body 100 is inserted between the two side plates 202; if the distance between the side plate 202 and the adjacent template body 100 is large, an intermediate plate 600 of suitable thickness can be inserted between the two. On the contrary, when removing the mold, the clamp 200 can be pulled upward.

[0068] In a possible implementation, the tension member 300 includes a screw rod 301, a pad 302 and a tension nut 303; the screw rod 301 is passed through the clamp 200, and both ends of the screw rod 301 are passed through the outside of the clamp 200; two pads 302 are provided and are respectively sleeved on both ends of the screw rod 301, and the pads 302 are located on the outside of the clamp 200; two tension nuts 303 are provided and are respectively sleeved on both ends of the screw rod 301, and the tension nuts 303 are located on the outside of the pad 302.

[0069] Based on the above design, the tension member 300 is preferably inserted into the clamp 200 in advance, and when the clamp 200 is installed on the template body 100, the tension member 300 is also installed. The screw 301 is threadedly connected to the tension nut 303, and the tension nut 303 is screwed to adjust the position of the tension nut 303 on the screw 301, thereby controlling the clamping force of the clamp 200 on the template body 100. Specifically, the operator screws the tension nut 303 again to make the side plates 202 of the clamp 200 relatively close, so that the side plates 202 press against the template body 100, and the two side plates 202 of the clamp 200 cooperate with each other and clamp the template body 100.

[0070] The backing plate 302 acts as a gasket to effectively prevent the loosening of the tension nut 303 to ensure that the clamping force of the clamp 200 can be maintained at a desired value. It is easy to understand that when removing the mold, the tension nut 303 can be loosened appropriately to reduce the clamping force of the clamp 200 on the template body 100, so as to facilitate the removal of the clamp 200 from the template body 100.

[0071] In a possible implementation, the liner 400 is constructed as a steel bar with flat ends. Based on the above design, the ends of the liner 400 are flat to prevent the steel bar from damaging the side plate 202 of the clamp 200 and extend the number of times the clamp 200 can be used.

[0072] In a possible implementation, an inner support 700 is provided on the casting trough for maintaining the spacing between the template bodies 100, and the distance between the inner support 700 and the clamp 200 is 90-110 mm. Based on the above design scheme, the inner support 700 is constructed as a frame structure, and after the concrete is poured into the casting trough, the concrete is vibrated. After the vibration operation is completed, the inner support 700 is pulled out from between the two template bodies 100. The inner support 700 cooperates with the clamp 200 to provide a clamping force to clamp the template body 100, and to ensure that the spacing between the two relative template bodies 100 meets the design requirements.

[0073] Based on the above-mentioned turnover formwork structure, this embodiment introduces a construction method based on the above-mentioned turnover formwork structure, and the above-mentioned construction method includes the following steps:

[0074] S1: Positioning and laying out the lines; cutting the concrete according to the positioning lines and chiseling until the coarse aggregate is exposed;

[0075] S2: Setting the positioning rods 500, the distance between two adjacent positioning rods 500 is not more than 50 cm, and the upper end of the positioning rod 500 exceeds the top surface of the concrete by no more than 10 cm;

[0076] S3: Using the positioning rod 500 as a reference, installing the revolving template and the inner support 700;

[0077] S4: Concrete pouring, curing and demoulding, and removing the internal support 700 within 5 minutes after the concrete is vibrated;

[0078] S5: Repeat S1-S4 to reuse the turnaround template.

[0079] When the construction method is used, in S1, the width of the cut concrete is 10-15 mm. In case of a concrete structure, the height of the kick on the side of the wall is slightly higher by 2-3 cm.

[0080] In S2, at the corners, the distance between the positioning rod 500 and the corner line is 45-55 mm to ensure the stability of the structure at the corners of the casting trough.

[0081] In S3, after the force is applied to the pull member 300, it is ensured that the actual width of the casting groove is ±5 mm of the design value.

[0082] S4 can be constructed according to the existing construction method, wherein after the vibration operation is completed, the inner support 700 is removed within 5 minutes to avoid the inner support 700 remaining in the concrete.

[0083] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A recyclable template structure, characterized in that: It comprises a template body (100), a clamp (200), a tensioning member (300) and an inner lining (400); A plurality of template bodies (100) are provided and divided into two groups, and the two groups of template bodies (100) are arranged opposite to each other to form a casting trough; The lower part of the clamp (200) is open and used to clamp two template bodies (100), and the upper part of the clamp (200) is connected to the tensioning member (300); The tensioning member (300) is used to apply a clamping force to clamp the template body (100); The liner (400) is used to be inserted into the fixture (200) to prevent the width of the casting groove from being reduced.

2. The recyclable template structure according to claim 1 is characterized in that: The template body (100) has opposite inner and outer side surfaces. The inner side surface of the template body (100) is provided with a plurality of positioning rods (500). The plurality of positioning rods (500) are divided into two groups and are respectively located on both sides of the casting trough. Correspondingly, the two template bodies (100) are respectively abutted against one group of positioning rods (500); the outer side surface of the template body (100) is connected to the clamp (200).

3. The recyclable template structure according to claim 2 is characterized in that: The template body (100) and the fixture (200) are connected via an intermediate plate (600).

4. The recyclable template structure according to claim 2, characterized in that: The template body (100) and the clamp (200) are both made of wooden boards.

5. The recyclable template structure according to claim 4, characterized in that: The fixture (200) comprises a top plate (201) and a side plate (202); The two ends of the top plate (201) are respectively connected to one of the side plates (202), and accordingly, two side plates (202) are provided; The side plates (202) are connected to the top plate (201) and extend downwards. Accordingly, an open cavity for connecting the template body (100) is formed between the two side plates (202).

6. The recyclable template structure according to claim 5, characterized in that: The side plate (202) is arranged vertically, and the upper end of the side plate (202) is connected to the end of the top plate (201), and the lower end of the side plate (202) extends downward. Accordingly, the top plate (201) and the side plate (202) are constructed as U-shaped plates with openings facing downward.

7. The turnable template structure according to any one of claims 1 to 6, characterized in that: The tension member (300) comprises a screw rod (301), a pad (302) and a tension nut (303); the screw rod (301) is passed through the clamp (200), and both ends of the screw rod (301) are passed through the outside of the clamp (200); two pads (302) are provided and respectively sleeved on both ends of the screw rod (301), and the pads (302) are located outside the clamp (200); two tension nuts (303) are provided and respectively sleeved on both ends of the screw rod (301), and the tension nuts (303) are located outside the pad (302).

8. The turnable template structure according to any one of claims 1 to 6, characterized in that: The inner lining (400) is constructed as a steel bar with flat ends.

9. The turnable template structure according to any one of claims 1 to 6, characterized in that: The casting trough is provided with an inner support (700) for maintaining the spacing of the template body (100), and the distance between the inner support (700) and the clamp (200) is 90-110 mm.

10. A construction method based on the recyclable formwork structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Positioning and laying out the lines; cutting the concrete according to the positioning lines and chiseling until the coarse aggregate is exposed; S2: Positioning rods (500) are arranged, the distance between two adjacent positioning rods (500) is not greater than 50 cm, and the upper end of the positioning rod (500) exceeds the top surface of the concrete by not more than 10 cm; S3: Using the positioning rod (500) as a reference, installing the revolving template and the inner support (700); S4: Concrete pouring, curing and demoulding, and removing the internal support within 5 minutes after the concrete is vibrated (700); S5: Repeat S1-S4 to reuse the turnaround template.

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