A building reserved hole template structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-21
Smart Images
Figure CN224532231U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete pouring formwork technology, and specifically relates to a formwork structure for reserved openings in buildings. Background Technology
[0002] In cast-in-place reinforced concrete shear wall structures, door and window openings are typically reserved. The construction of these openings is a crucial step, requiring precise dimensions as well as the stability and safety of the formwork. Existing formwork for these reserved openings is often installed using a piecemeal method, resulting in insufficient overall rigidity, susceptibility to deformation, and difficulty in ensuring the accuracy of the opening dimensions.
[0003] In some construction sites, prefabricated modular formwork is used based on the dimensions of the reserved openings. However, the prefabricated modular formwork has a single size and can only be used for specific construction scenarios, making it difficult to reuse and resulting in material waste. In addition, the existing reserved opening formwork overcomes the buoyancy during concrete pouring by connecting it to the wall pouring formwork. To ensure the connection strength, multiple through holes need to be made in the reserved opening formwork to insert tie bolts, resulting in poor opening forming effect. Utility Model Content
[0004] The purpose of this utility model is to provide a pre-reserved opening template structure for buildings, so as to solve the problems of insufficient strength of the opening template, easy deformation, difficulty in recycling, and the impact of buoyancy on the forming quality of the opening in the above-mentioned background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A formwork structure for pre-reserved openings in buildings includes a formwork, a support frame, and corner supports;
[0007] The template includes a panel, a backing plate, and connecting blocks; the panel encloses and forms a combined structure adapted to the reserved opening; the backing plate is disposed inside the panel; the connecting blocks are spaced apart on the backing plate and are arranged symmetrically.
[0008] The support frame includes a main body and a telescopic rod; the main body has end portions spaced apart, and the end portions correspond to the connecting blocks; the telescopic rod is located at the end of the main body and abuts against the connecting blocks.
[0009] The corner support includes a support block and a stiffening plate; the support block is set at the corner of the combined structure and is connected to the liner; the stiffening plate is set perpendicular to the liner, and its two sides are connected to the adjacent liner at the corner position.
[0010] Furthermore, the combined structure is a rectangular structure with openings on the front and rear sides.
[0011] Furthermore, the template also includes a sealing plate, which is disposed on the front and rear sides of the combined structure and connected to the panel.
[0012] Furthermore, the support frame is a grid-shaped frame with threaded holes at its ends; the telescopic rod is a screw rod and is threadedly connected to the end of the support frame.
[0013] Furthermore, the telescopic rod is a U-shaped support.
[0014] Furthermore, the connecting block is a wooden structure, and its length is the same as the depth of the reserved opening.
[0015] Furthermore, the stiffening plates are disposed on the front and rear sides of the support block and are in contact with the sealing plate.
[0016] Furthermore, a horizontal bar is detachably installed at the top of the template; both ends of the horizontal bar extend to the outside of the template, and connecting bars are provided at their ends, which are tied to the reinforcing bars located below the template.
[0017] This utility model has the following beneficial effects:
[0018] 1. The present invention provides a pre-reserved opening template structure for buildings, which uses a main body and telescopic rods to adjust the size of the support frame, making it adaptable to opening templates of various sizes, facilitating the turnover and utilization of the support frame, and ensuring the uniform distribution of the support positions.
[0019] 2. The present invention provides a pre-reserved opening template structure for buildings, wherein connecting blocks are set inside the template, and the support frame abuts against the connecting blocks to ensure uniform distribution of support force and guarantee the overall stability of the template.
[0020] 3. The formwork structure for pre-reserved openings in buildings provided by this utility model improves the load-bearing capacity of the formwork structure and avoids corner deformation through the cooperation of support blocks and stiffening plates.
[0021] 4. The present invention provides a pre-reserved opening formwork structure for buildings, wherein a horizontal bar is detachably installed at the top of the formwork, and the bottom steel bars and the horizontal bar are tied together by connecting bars to prevent the formwork from floating. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the template structure involved in this utility model;
[0023] Figure 2 This is a top view of the template structure involved in this utility model.
[0024] In the diagram: 1-template, 11-panel, 12-lining plate, 13-sealing plate, 14-connecting block, 2-support frame, 21-main body, 22-telescopic rod, 3-corner support, 31-support block, 32-stiffening plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figure 1 , 2 As shown, this utility model provides a pre-reserved opening formwork structure for buildings, including a formwork 1, a support frame 2, and a corner support 3. The formwork 1 includes a panel 11, a backing plate 12, and connecting blocks 14. The panel 11 forms a combined structure adapted to the pre-reserved opening. The backing plate 12 is disposed inside the panel 11. The connecting blocks 14 are spaced apart on the backing plate 12 and are symmetrically arranged. The support frame 2 includes a main body 21 and telescopic rods 22. The main body 21 has spaced-apart ends that correspond to the connecting blocks 14. The telescopic rods 22 are disposed at the ends of the main body 21 and abut against the connecting blocks 14. The corner support 3 includes a support block 31 and a stiffening plate 32. The support block 31 is disposed at the corner of the combined structure and is connected to the backing plate 12. The shape of the support block 31 is adapted to the shape of the corner. The stiffening plate 32 is disposed perpendicular to the backing plate 12, and its two sides are connected to the adjacent backing plate 12 at the corner position. The support block 31 and the stiffening plate 32 cooperate to improve the load-bearing capacity of the formwork structure and prevent corner deformation.
[0027] The combined structure formed by the panels 11 is a rectangular structure with openings on the front and back sides. Preferably, the template 1 also includes a sealing plate 13, which is disposed on the front and back sides of the combined structure and connected to the panels 11. The backing plate 12 is connected to the panels 11 by self-tapping screws. The connecting block 14 is a wooden structure and is fixed to the template 1 by nails. The length of the connecting block 14 is the same as the depth of the reserved opening.
[0028] The support frame 2 is a grid-shaped frame with threaded holes at its ends; the telescopic rod 22 is threadedly connected to the end of the support frame 2. Preferably, the telescopic rod 22 is a U-shaped support. By adjusting the telescopic rod 22, the support frame 2 and the connecting block 14 are aligned and abutted against each other, thus supporting the structure of the template 1.
[0029] The support block 31 is a wooden structure and is fixed to the template 1 with nails. Stiffening plates 32 are installed on the front and rear sides of the support block 31 and contact the sealing plate 13. The length of the support block 31 is the same as the depth of the pre-reserved opening.
[0030] Formwork 1 is connected to the building structure casting formwork. A horizontal bar is detachably installed at the top of formwork 1, with both ends extending to the outside of formwork 1. Connecting bars are installed at the ends of the horizontal bars, which are tied to the reinforcing bars located below formwork 1 to prevent formwork 1 from floating during concrete pouring. When the concrete is poured to be flush with the top of formwork 1, the horizontal bar is removed, leaving connecting bars 2 inside the concrete structure, and then concrete pouring can continue.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A formwork structure for pre-reserved openings in buildings, characterized in that: Includes template (1), support frame (2) and corner support (3); The template (1) includes a panel (11), a liner (12), and connecting blocks (14); the panel (11) encloses and forms a combined structure adapted to the reserved opening; the liner (12) is disposed inside the panel (11); the connecting blocks (14) are spaced apart on the liner (12) and are symmetrically arranged. The support frame (2) includes a main body (21) and a telescopic rod (22); the main body (21) is provided with end pieces at intervals, and the end pieces correspond to the connecting block (14); the telescopic rod (22) is provided at the end of the main body (21) and abuts against the connecting block (14); The corner support (3) includes a support block (31) and a stiffening plate (32); the support block (31) is set at the corner of the combined structure and is connected to the liner (12); the stiffening plate (32) is set perpendicular to the liner (12), and its two sides are connected to the adjacent liner (12) at the corner position.
2. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: The combined structure is a rectangular structure with openings on the front and back sides.
3. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: The template (1) also includes a sealing plate (13), which is disposed on the front and rear sides of the combined structure and connected to the panel (11).
4. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: The support frame (2) is a grid-shaped frame with threaded holes at its ends; the telescopic rod (22) is a screw rod and is threadedly connected to the end of the support frame (2).
5. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: The telescopic rod (22) is a U-shaped support.
6. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: The connecting block (14) is a wooden structure, and its length is the same as the depth of the reserved opening.
7. The formwork structure for a pre-reserved opening in a building according to claim 3, characterized in that: The stiffening plate (32) is disposed on the front and rear sides of the support block (31) and contacts the sealing plate (13).
8. The formwork structure for a pre-reserved opening in a building according to claim 1, characterized in that: A horizontal bar is detachably installed on the top of the template (1); both ends of the horizontal bar extend to the outside of the template (1), and a connecting bar is provided at its end. The connecting bar is tied to the steel bar located below the template (1).