A leakproof formwork for building concrete pouring
By setting a combination structure of clamps, clips, pins and reinforcing ribs on the template frame, the problems of poor sealing and complicated installation at the template connection points are solved, achieving efficient grout leakage prevention and convenient disassembly, thus improving the molding quality and service life of the template.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SCI & TECH UNIV
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-09
Smart Images

Figure CN224338626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-leakage grout template technology, and in particular to an anti-leakage grout template for pouring concrete in buildings. Background Technology
[0002] Formwork for concrete pouring is a temporary support structure used to fix the shape of concrete and ensure its pouring quality. It is widely used in the construction of concrete components such as walls, columns, and beams. It enables concrete to maintain its preset size and shape during the setting and hardening process, making it an indispensable key piece of equipment in building construction.
[0003] However, existing templates have some shortcomings in practical use:
[0004] First, the poor sealing at the connection points of adjacent formwork frames can easily lead to grout leakage during concrete pouring, resulting in defects such as honeycomb and pitting on the surface of the components, which affects the quality of the project.
[0005] Secondly, the assembly and disassembly of the templates are complex, the positioning accuracy of the connecting parts is low, the installation efficiency is low, and the connecting structure is prone to loosening after repeated use, which further aggravates the grout leakage problem. Utility Model Content
[0006] In view of the shortcomings of the prior art, this utility model provides a grout-proof template for concrete pouring, which overcomes the shortcomings of the prior art and effectively solves the problems of poor sealing and complicated assembly and disassembly processes.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A formwork template for preventing grout leakage during concrete pouring includes adjacent formwork frames, a clamping plate between two formwork frames, and a side pressure plate hinged to one outer wall of the clamping plate. An angle steel is provided on the bottom outer wall of the formwork frame, and an angle bracket is provided between the angle steel and the clamping plate. First pins are installed at equal intervals between the formwork frame and the clamping plate, and second pins are installed between two adjacent angle brackets.
[0009] Preferably, the angle bracket is fixedly connected to the bottom inner wall of the angle steel by screws.
[0010] Preferably, the template frame has a retaining strip on both sides of its outer wall, and the retaining strip is in close contact with the inner wall of the card plate. The retaining strip and the outer wall of the card plate are both provided with positioning holes, and the first pin is installed through the inner wall of the positioning hole.
[0011] Preferably, the outer wall of one side of the template frame is welded with adjacent reinforcing ribs.
[0012] Preferably, a positioning strip is welded to the inner wall of the bottom of the angle steel, and the positioning strip is tightly attached to the outer wall of the card plate.
[0013] Preferably, both the first pin and the second pin include a pivot pin and a locking nut, wherein the locking nut is screwed onto the outer wall of the pivot pin.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The anti-leakage formwork for concrete pouring in this design has a clamping strip that fits tightly between the plate and the formwork frame. The first pin passes through the positioning hole to achieve precise fixation. The side pressure plate further enhances the side sealing. In addition, the angle steel and the angle bracket between the plate and the second pin strengthen the tightness of the bottom connection. Multiple protections greatly reduce the leakage of grout during concrete pouring and ensure the quality of component forming.
[0016] 2. The anti-leakage formwork for concrete pouring in this design adopts a combination structure of shaft pin and locking nut for the first and second pins, which is convenient to install and disassemble and has precise positioning. In addition, the reinforcing bars enhance the overall rigidity of the formwork frame, reduce deformation during pouring, extend the service life of the formwork, and solve the problems of complex installation and easy deformation of traditional formwork. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure assembly of a leak-proof formwork for concrete pouring proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the formwork frame connection structure for a leak-proof formwork for concrete pouring in this utility model.
[0019] Figure 3 This is a schematic diagram showing the overall structure of a leak-proof formwork for concrete pouring in this utility model.
[0020] Figure 4 This is a schematic diagram of a formwork frame structure for a concrete pouring anti-leakage formwork proposed in this utility model.
[0021] In the diagram: 1. Template frame; 2. Clamping plate; 3. Side pressure plate; 4. Angle steel; 5. Angle bracket; 6. First pin; 7. Second pin; 8. Clamping strip; 9. Positioning hole; 10. Reinforcing rib; 11. Positioning strip; 12. Shaft pin; 13. Locking nut. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-4 Example 1: A formwork for preventing grout leakage during concrete pouring includes adjacent formwork frames 1, a clamping plate 2 between two formwork frames 1, and a side pressure plate 3 hinged to one side of the outer wall of the clamping plate 2. An angle steel 4 is provided on the bottom outer wall of the formwork frame 1, and an angle bracket 5 is provided between the angle steel 4 and the clamping plate 2. The angle bracket 5 is fixedly connected to the bottom inner wall of the angle steel 4 by screws.
[0024] The clamping plate 2 between the two template frames 1 is used to connect and seal the adjacent template frames 1. The side pressure plate 3 hinged to the outer wall of one side of the clamping plate 2 can be rotated to fit the side of the template frame 1 to enhance the side sealing. The corner bracket 5 and the clamping plate 2 are tightly fitted to further prevent grout leakage at the bottom. This structure strengthens the sealing effect from both the side and the bottom.
[0025] In this embodiment, the card plate 2 and the template frame 1 are tightly fitted together by the card strip 8, and the first pin 6 passes through the positioning hole 9 to achieve precise fixation. The side pressure plate 3 further enhances the side sealing performance, and the angle bracket 5 between the angle steel 4 and the card plate 2 and the second pin 7 strengthen the tightness of the bottom connection. Multiple protections greatly reduce the leakage of grout during concrete pouring and ensure the quality of component molding.
[0026] In embodiment 2, first pins 6 are installed at equal intervals between the template frame 1 and the card plate 2, and second pins 7 are installed between two adjacent corner brackets 5. Card strips 8 are provided on both sides of the outer wall of one side of the template frame 1, and the card strips 8 are tightly attached to the inner wall of the card plate 2. Positioning holes 9 are provided on the outer wall of both the card strips 8 and the card plate 2, and the first pins 6 are installed through the inner wall of the positioning holes 9. The first pins 6 and the second pins 7 both include a shaft pin 12 and a locking nut 13, wherein the locking nut 13 is screwed onto the outer wall of the shaft pin 12.
[0027] The retaining strips 8 on both sides of the outer wall of one side of the template frame 1 are tightly attached to the inner wall of the card plate 2 to ensure a tight connection and positioning accuracy. The retaining strips 8 and the positioning holes 9 on the card plate 2 provide an installation channel for the first pin 6. After the first pin 6 passes through the positioning hole 9, it is firmly fixed by the cooperation of the shaft pin 12 and the locking nut 13. The second pin 7 between adjacent corner brackets 5 also adopts the structure of shaft pin 12 and locking nut 13, further reinforcing the bottom connection.
[0028] In this embodiment, the first pin 6 and the second pin 7 adopt a combination structure of shaft pin 12 and locking nut 13, which is convenient to install and disassemble and has accurate positioning. In addition, the reinforcing rib 10 enhances the overall rigidity of the template frame 1, reduces deformation during pouring, extends the service life of the template, and solves the problems of complex installation and easy deformation of traditional templates.
[0029] The template frame 1 has adjacent reinforcing ribs 10 welded to one side of its outer wall, and the angle steel 4 has a positioning strip 11 welded to its bottom inner wall, and the positioning strip 11 is tightly attached to the outer wall of the card plate 2.
[0030] The reinforcing ribs 10 welded to one side of the outer wall of the template frame 1 improve the template frame 1's resistance to deformation. The positioning strips 11 on the bottom inner wall of the angle steel 4 are closely attached to the outer wall of the card plate 2, enhancing the stability of the card plate 2 installation.
[0031] Working principle: During assembly, first, place adjacent template frames 1 in the preset positions, install the clamping plates 2 between the template frames 1, ensuring that the clamping strips 8 on the template frames 1 are tightly against the inner wall of the clamping plates 2, align the positioning holes 9, insert the first pin 6, and tighten the shaft pin 12 with the locking nut 13 to complete the fixing of the template frame 1 and the clamping plates 2. Next, install the angle steel 4 at the bottom of the template frame 1, and fix the angle brackets 5 to the angle steel 4 with screws, so that the angle brackets 5 are close to the clamping plates 2. Then, connect and tighten the adjacent angle brackets 5 with the second pin 7, and at the same time, rotate the side pressure plate 3 to make it fit against the side of the template frame 1 to complete the overall assembly.
[0032] During the pouring process, the formwork frame 1 maintains structural stability under the action of the reinforcing bars 10. The clamps 8, side pressure plates 3, corner brackets 5, and positioning strips 11 together form a multi-layer seal to prevent concrete leakage. During disassembly, the locking nuts 13 are loosened in sequence, the first pin 6 and the second pin 7 are removed, and the clamps 2, corner brackets 5, and angle steel 4 are removed to complete the disassembly and recycling of the formwork.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A formwork for preventing grout leakage during concrete pouring, comprising adjacently distributed formwork frames (1), characterized in that, A clamping plate (2) is provided between the two template frames (1), and a side pressure plate (3) is hinged to one side of the outer wall of the clamping plate (2). An angle steel (4) is provided on the bottom outer wall of the template frame (1), and an angle bracket (5) is provided between the angle steel (4) and the clamping plate (2). First pins (6) are installed at equal intervals between the template frame (1) and the clamping plate (2), and second pins (7) are installed between two adjacent angle brackets (5).
2. The anti-leakage formwork for concrete pouring as described in claim 1, characterized in that, The corner bracket (5) is fixedly connected to the bottom inner wall of the angle steel (4) by screws.
3. The anti-leakage formwork for concrete pouring as described in claim 1, characterized in that, The template frame (1) has two side strips (8) on its outer wall, and the strips (8) are tightly attached to the inner wall of the plate (2). The strips (8) and the outer wall of the plate (2) are both provided with positioning holes (9), and the first pin (6) is installed through the inner wall of the positioning hole (9).
4. The anti-leakage formwork for concrete pouring as described in claim 1, characterized in that, The template frame (1) has adjacent reinforcing ribs (10) welded to the outer wall of one side.
5. A formwork for preventing leakage during concrete pouring as described in claim 1, characterized in that, The angle steel (4) has a positioning strip (11) welded to the inner wall of its bottom, and the positioning strip (11) is in close contact with the outer wall of the card plate (2).
6. A formwork for preventing leakage during concrete pouring as described in claim 1, characterized in that, The first pin (6) and the second pin (7) both include a shaft pin (12) and a locking nut (13), wherein the locking nut (13) is screwed onto the outer wall of the shaft pin (12).