Formwork grout leakage prevention device for large-angle inclined concrete outer wall

A modular system with integrated sealing and reinforcement components addresses leakage and instability issues in large-angle inclined concrete walls, enhancing structural integrity and waterproofing during construction.

CN223104118UActive Publication Date: 2025-07-15GUANGZHOU DI ER CONSTRUCTION & ENGINEERING CO LTD
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Patent Information

Application Number
CN202422360727.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-15
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

In the prior art, the supporting formwork devices for large-angle inclined concrete exterior walls have problems such as poor resistance to horizontal thrust, easy leakage of slurry during pouring inclined formwork, and easy leakage of the interface between new and old concrete, resulting in poor construction quality.

Method used

The formwork device, a first water stop, a first seal, a first reinforcement and a first side support device are adopted, and the fixed components, a throwing support and a second side support device are combined to form a support system to improve the stability and horizontal thrust resistance of the formwork device to prevent slurry and leakage.

Benefits of technology

It effectively solves the construction quality problem of large-angle inclined concrete exterior walls, ensures the stability of the formwork device and the anti-slurry effect, and improves the leakage resistance of the interface between new and old concrete.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of building construction, and discloses a formwork-erecting slurry-leakage-preventing device for a large-angle inclined concrete outer wall, which comprises a formwork device, a first water stopping piece, a first sealing piece, a first reinforcing piece and a first side formwork-erecting device, the formwork device is provided with a forming cavity and a pouring opening. The forming cavity is communicated with the pouring opening; the formwork device can be arranged at the position where an inclined outer wall is constructed and used for pouring forming of a large-angle inclined concrete outer wall. A first water stop piece is arranged at the joint of the upper portion of the formwork device and the first original structure. A first sealing piece and a first reinforcing piece are arranged at the joint of the lower portion of the formwork device and the second original structure. A first side formwork supporting device is arranged on the first side of the formwork device and used for supporting the first side of the formwork device. According to the utility model, the problems of poor horizontal thrust resistance, easy slurry leakage during inclined template pouring and easy leakage of an interface of new and old concrete of a template erecting device are effectively solved, a good construction effect is ensured, and the construction quality of a large-angle inclined concrete outer wall is ensured.
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Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a formwork leakage prevention device for a large-angle inclined concrete exterior wall. Background Technique

[0002] With the development of the times, building design keeps up with the times. While meeting the required usage functions of people, building design often takes into account requirements such as the beauty and innovation of buildings. At present, there are many large-angle inclined concrete exterior walls designed to meet the needs of beauty, shape, etc. In some projects, the exterior wall of the youth palace project is a large-angle inclined concrete exterior wall, and its shape is not only beautiful but also grand. However, due to the excessive inclination angle of the inclined concrete exterior wall, if the conventional formwork method is used, the connection effect of the contact surface between the newly poured concrete and the original concrete is not very good. And in the conventional practice, steel pipe fastener scaffolds are usually used to set up the formwork support system. The support system set up in this way has problems such as insufficient bearing capacity, poor overall stability, difficulty in the frame body to resist horizontal thrust, and easy leakage of formwork. During the construction process, even the consequence of formwork explosion may occur, and the waterproof effect of the exterior wall in the later stage cannot be effectively guaranteed. At present, there is a lack of a formwork leakage prevention device for a large-angle inclined concrete exterior wall to solve the problems of poor horizontal thrust resistance of the formwork device, easy leakage of the inclined formwork during pouring, and easy leakage at the interface between new and old concretes.

[0003] Therefore, a new technology is needed to solve the problem that there is a lack of a formwork leakage prevention device for a large-angle inclined concrete exterior wall in the prior art. Content of the Utility Model

[0004] To solve the above problems in the prior art, the utility model provides a formwork leakage prevention device for a large-angle inclined concrete exterior wall, which effectively solves the problems of poor horizontal thrust resistance of the formwork device, easy leakage of the inclined formwork during pouring, and easy leakage at the interface between new and old concretes during the formwork construction of the large-angle concrete exterior wall, ensures good construction effect, and guarantees the construction quality of the large-angle inclined concrete exterior wall.

[0005] The utility model adopts the following technical solutions:

[0006] A formwork anti-leakage device for a large-angle inclined concrete exterior wall, comprising a formwork device, a first waterstop, a first seal, a first reinforcement, and a first side formwork device; the formwork device has a forming cavity and a pouring port; the forming cavity is communicated with the pouring port; the formwork device can be arranged at the position of constructing the inclined exterior wall for the casting and forming of the large-angle inclined concrete exterior wall; the first waterstop is arranged at the connection between the upper part of the formwork device and the first original structure; the first seal and the first reinforcement are arranged at the connection between the lower part of the formwork device and the second original structure; the first side formwork device is arranged on the first side of the formwork device for supporting the first side of the formwork device.

[0007] Further, it further comprises a fixing component; the first side formwork device is fixed between the first original structure and the second original structure through the fixing component.

[0008] Further, the fixing component is a steel bar or an expansion bolt.

[0009] Further, it further comprises a rakeforce; the rakeforce is obliquely connected to the first side formwork device, that is, the rakeforce is obliquely arranged, and one end of the rakeforce is connected to the second original structure and the other end is connected to the first side formwork device.

[0010] Further, it further comprises a window opening and a reinforcing wooden box; the formwork device is provided with the window opening; the reinforcing wooden box is arranged at the window opening for reinforcing the window opening.

[0011] Further, it further comprises a second side formwork device, the second side formwork device is arranged on the second side of the formwork device, and the second side formwork device is connected to the first side formwork device through the window opening.

[0012] Further, the first side formwork device comprises a vertical pole, a first direction rod, and a second direction rod; the first end of the vertical pole can be connected to the first original structure, and the second end of the vertical pole can be connected to the second original structure; the first direction rod is arranged along the first direction and can connect several vertical poles in the first direction; the second direction rod is arranged along the second direction and can connect several vertical poles in the second direction; the vertical pole, the first direction rod, and the second direction rod can form a formwork framework, and the second direction rod can be connected to the formwork device.

[0013] Further, the formwork device further includes an inner formwork, an outer formwork, wooden beams, a tie rod assembly, and a steel pipe assembly; a forming cavity is formed between the inner formwork and the outer formwork; the outer formwork has an inclined plate, and the inclined plate forms the pouring port inward; several wooden beams are respectively arranged on the inner formwork and the outer formwork; several groups of steel pipe assemblies are respectively blocked on the wooden beams on the first side and the wooden beams on the second side, and the two sides of the steel pipe assemblies are connected by the tie rod assembly passing through the inner formwork and the outer formwork.

[0014] Further, the first reinforcement member is an angle iron; after the formwork device is set up, angle irons are provided on the first side and the second side at the bottom.

[0015] Further, the first waterstop member is a water-swellable waterstop strip; the first sealing member is a sealing strip.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] A formwork anti-leakage slurry device for a large-angle inclined concrete exterior wall, the formwork device of which can be used for the pouring and forming of a large-angle inclined concrete exterior wall, the first waterstop member of which can solve the problem of easy leakage at the interface between new and old concrete, the first reinforcement member of which can reinforce the bottom of the formwork device, effectively strengthening the fixed constraint of the formwork device, the first side formwork device is arranged on the first side of the formwork device, and the upper part of the first side formwork device can be fixed to the first original structure and the lower part can be fixed to the second original structure, which is used to support the first side of the formwork device. This design improves the anti-horizontal thrust performance of the first side formwork device. At the same time, the present utility model also sets a first sealing member at the connection between the formwork device and the second original structure, effectively solving the problem of easy slurry leakage during the pouring of the inclined formwork.

[0018] Preferably, the present utility model sets a second side formwork device on the second side of the formwork device, which can facilitate people to carry out construction operations on the outside. Preferably, the first side formwork device is fixed between the first original structure and the second original structure through a fixing component, which can further improve the anti-horizontal thrust performance of the formwork device; preferably, the first side formwork device is also provided with a raking shore for strengthening, improving the anti-horizontal thrust performance of the formwork device; more preferably, the second side formwork device is connected to the first side formwork device through a window opening to form a formwork system, which can further improve the anti-horizontal thrust performance of the formwork devices on the left and right sides of the formwork device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the technology of the present utility model in detail with reference to the drawings and specific embodiments:

[0020] Figure 1 It is a (side view) elevation view of the formwork anti-leakage slurry device;

[0021] Figure 2 is Figure 1 The partial enlarged view at H;

[0022] Figure 3 is Figure 1 The partial enlarged view at M;

[0023] Figure 4 is Figure 1 The left view (showing only the first side formwork device);

[0024] Figure 5 is Figure 1 The top view (showing only the first side formwork device);

[0025] Figure 6 is the front view (partial schematic diagram) of the formwork device with a window opening and a reinforced wooden box (showing only the window opening, the reinforced wooden box, and part of the formwork device structure);

[0026] Figure 7 is Figure 6 The sectional schematic diagram at K-K.

[0027] Reference numerals:

[0028] 1 - Formwork device; A - First side; B - Second side; C - Molding cavity; D - Pouring port; E - Window opening; F - Reinforced wooden box; F1 - First surrounding frame; F2 - Second surrounding frame; F3 - First stiffening rib; F4 - Second stiffening rib; 11 - Inner formwork; 12 - Outer formwork; 121 - Diagonal plate; 13 - Wood beam; 14 - Tie rod assembly; 141 - Butterfly buckle; 142 - Screw rod; 15 - Steel pipe assembly; H - Symbol of partial enlarged view; K-K - Section symbol; M - Partial enlarged view;

[0029] 21 - First water stop; 22 - First seal; 23 - First reinforcement;

[0030] 3 - First side formwork device; G - Raking shore; 31 - Vertical pole; 32 - First direction rod; 33 - Second direction rod; 34 - Vertical continuous scissor brace; X - First direction; Y - Second direction;

[0031] 4 - Second side formwork device; 41 - Vertical rod; 42 - Longitudinal rod; 43 - Transverse rod; 44 - Diagonal stiffening;

[0032] 51 - First original structure; 52 - Second original structure;

[0033] 6 - Fixing assembly; 61 - Steel bar; 62 - Expansion bolt. Detailed implementation manners

[0034] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The same reference numerals used in the drawings indicate the same or similar parts everywhere.

[0035] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to another feature, or indirectly fixed or connected to another feature. In addition, the descriptions such as upper, lower, left, and right used in the present utility model are only relative to the mutual positional relationship of the various components of the present utility model in the drawings.

[0036] Refer to Figures 1 to 7 , a formwork leakage prevention device for a large-angle inclined concrete exterior wall, including a formwork device 1, a first water stop member 21, a first sealing member 22, a first reinforcement member 23 and a first side formwork device 3; the formwork device 1 has a forming cavity C and a pouring port D; the forming cavity C is communicated with the pouring port D; the formwork device 1 can be arranged at the position of constructing the inclined exterior wall for the large-angle inclined concrete exterior wall to be formed; the first water stop member 21 is arranged at the connection between the upper part of the formwork device 1 and the first original structure 51; the first sealing member 22 and the first reinforcement member 23 are arranged at the connection between the lower part of the formwork device 1 and the second original structure 52; the first side A of the formwork device 1 is provided with the first side formwork device 3 for supporting the first side A of the formwork device 1.

[0037] Refer to Figures 1 to 7 , in one embodiment, it further includes a fixing component 6; the first side formwork device 3 is fixed between the first original structure 51 and the second original structure 52 through the fixing component 6.

[0038] Refer to Figures 1 to 7 , in one embodiment, the fixing component 6 is a steel bar 61 or an expansion bolt 62.

[0039] Refer to Figures 1 to 7 , in one embodiment, it further includes a raking strut G; the raking strut G is obliquely connected to the first side formwork device 3, that is, the raking strut G is obliquely arranged, and one end of the raking strut G is connected to the second original structure 52 and the other end is connected to the first side formwork device 3.

[0040] Refer to Figures 1 to 7, in one embodiment, it further includes a window opening E and a reinforcing wooden box F; the formwork device 1 is provided with the window opening E; the reinforcing wooden box F is arranged in the window opening E for reinforcing the window opening E; after pouring concrete into the forming cavity C of the formwork device 1, the large-angle inclined concrete exterior wall is poured and formed. Thereafter, after removing the formwork device 1, the window opening E is also formed in the large-angle inclined concrete exterior wall. Therefore, the window opening E can be used for installing the windows of the inclined wall subsequently. Before pouring concrete into the forming cavity C of the formwork device 1, the reinforcing wooden box F is arranged in the window opening E for strengthening the window opening E to prevent the formwork from bursting at the position of the window opening E when pouring concrete.

[0041] Refer to Figures 1 to 7 , in one embodiment, the reinforcing wooden box F includes a first surrounding frame F1, a second surrounding frame F2, a first stiffening rib F3 and a second stiffening rib F4; the first surrounding frame F1 is arranged in the window opening E to support the opening part of the formwork device 1; the second surrounding frame F2 is arranged beside the first surrounding frame F1 and also supports the opening part of the formwork device 1; the first stiffening rib F3 is horizontally arranged in the first surrounding frame F1 for supporting the first surrounding frame F1; the second stiffening rib F4 is obliquely arranged at the corner of the first surrounding frame F1 for supporting the first surrounding frame F1.

[0042] Refer to Figures 1 to 7 , in one embodiment, it further includes a second side formwork support device 4. The second side B of the formwork device 1 is provided with the second side formwork support device 4, and the second side formwork support device 4 is connected to the first side formwork support device 3 through the window opening E.

[0043] Refer to Figures 1 to 7 , in one embodiment, the second side formwork support device 4 is mainly composed of a vertical rod 41, a longitudinal rod 42 and a transverse rod 43; a part of the transverse rod 43 of the second side formwork support device 4 is connected to the first side formwork support device 3 through the window opening E; the vertical rod 41 and a part of the cantilevered transverse rod 43 of the second side formwork support device are connected by an inclined stiffener 44.

[0044] Refer to Figures 1 to 7, in one embodiment, the first side formwork device 3 includes vertical poles 31, first-direction bars 32 and second-direction bars 33; the first end of the vertical pole 31 can be connected to the first original structure 51, and the second end of the vertical pole 31 can be connected to the second original structure 52; the first-direction bars 32 are arranged along the first direction X and can connect several of the vertical poles 31 in the first direction X; the second-direction bars 33 are arranged along the second direction Y and can connect several of the vertical poles 31 in the second direction Y; the vertical poles 31, the first-direction bars 32 and the second-direction bars 33 can form a formwork support frame, and the second-direction bars 33 can be connected to the formwork device 1 to support the formwork device 1.

[0045] Refer to Figures 1 to 7 , in one embodiment, the first side formwork device 3 further includes a vertical continuous scissors brace 34; the vertical continuous scissors brace 34 is erected on one side of the formwork support frame composed of "vertical poles 31, first-direction bars 32 and second-direction bars 33" to strengthen the structure of the formwork support frame.

[0046] Refer to Figures 1 to 7 , in one embodiment, the first end of the vertical pole 31 can be connected to the first original structure 51 through a steel bar 61 or an expansion bolt 62; the second end of the vertical pole 31 can be connected to the second original structure 52 through a steel bar 61 or an expansion bolt 62; this design can improve the horizontal thrust resistance performance of the first side formwork device 3. Among them, when the vertical pole is connected and fixed using a steel bar 61 or an expansion bolt 62, the depth of the steel bar 61 or the expansion bolt 62 implanted into the first original structure is not less than 80 mm, and the depth of the steel bar 61 or the expansion bolt 62 implanted into the second original structure is not less than 80 mm.

[0047] Refer to Figure 1 , in one embodiment, most of the second-direction bars 33 vertically support the inclined formwork device 1, and this design can improve the support effect of the first side formwork device 3.

[0048] Refer to Figures 1 to 7 , in one embodiment, the formwork device 1 further includes an inner formwork 11, an outer formwork 12, wooden beams 13, a tie rod assembly 14 and a steel pipe assembly 15; a forming cavity C is formed between the inner formwork 11 and the outer formwork 12; the outer formwork 12 has an inclined plate 121, and a pouring port D is formed inside the inclined plate 121; several of the wooden beams 13 are respectively arranged on the inner formwork 11 and the outer formwork 12; several groups of the steel pipe assemblies 15 are respectively blocked on the wooden beams 13 on the first side A and the wooden beams 13 on the second side B, and the tie rod assembly 14 passes through the inner formwork 11 and the outer formwork 12 to connect the steel pipe assemblies 15 on both sides.

[0049] Refer to Figures 1 to 7 In one embodiment, the inner formwork 11 and the outer formwork 12 are formworks with a thickness of 15 mm. The cross-sectional dimensions of the wooden joists are 50 mm × 100 mm (section width × section length).

[0050] In one embodiment, the inner formwork 11 and the outer formwork 12 are parallel to each other and maintain a set spacing for concrete pouring to form a large-angle inclined concrete exterior wall; the inner formwork 11 and the outer formwork 12 form a 75° angle with the upper plane of the second original structure 52.

[0051] Refer to Figures 1 to 7 In one embodiment, the tension rod assembly 14 includes a butterfly buckle 141 and a screw rod 142; each set of the steel pipe assemblies 15 includes two steel pipes. Preferably, the diameter of each steel pipe is 48 mm and the wall thickness is 3 mm; the steel pipe assemblies 15 on both sides are connected by the butterfly buckle 141 and the screw rod 142.

[0052] Refer to Figures 1 to 7 In one embodiment, the diameter of the screw rod 142 is 14 mm. After a number of the screw rods 142 are arranged on the formwork device 1, the longitudinal arrangement spacing thereof on the plane of the formwork device (such as the inner plane of the inner formwork) is 500 mm or 600 mm or 625 mm (note: the spacing between two adjacent screw rods 142 longitudinally on the plane of the formwork device is 500 mm or 600 mm or 625 mm), and the transverse arrangement spacing is 500 mm or 600 mm or 625 mm (note: the spacing between two adjacent screw rods 142 transversely on the plane of the formwork device is 500 mm or 600 mm or 625 mm).

[0053] Refer to Figures 1 to 7 In one embodiment, the first reinforcement member 23 is an angle iron; after the formwork device 1 is set up, the angle iron (or angle steel) is provided at the bottom of the first side A and the second side B.

[0054] Refer to Figures 1 to 7 In one embodiment, after the formwork device 1 is set up, the angle iron on the first side A is fixed to the second original structure 52 by expansion bolts 62 and blocks the wooden joist 13 at the bottom of the first side A of the formwork device 1; after the formwork device 1 is set up, the angle iron on the second side B is fixed to the outside of the second original structure 52 by expansion bolts 62 and supports the wooden joist 13 at the bottom of the second side B of the formwork device 1. Among them, the angle iron and the expansion bolts 62 need to be connected tightly (such as welded and fixed). Preferably, the diameter of the expansion bolts 62 is 12 mm.

[0055] Refer to Figures 1 to 7, in one embodiment, the first water stop member 21 is a water-swellable water stop strip; the first sealing member 22 is a sealing strip.

[0056] In one embodiment, the cross-sectional dimensions of the sealing strip are 20 mm × 50 mm (section width × section length).

[0057] In one embodiment, the formwork leakage prevention device further includes a cement base layer; after the formwork device 1 finishes pouring concrete, the concrete needs to be watered and cured in time; for the first original structure 51 and the second original structure 52, at the junction of the new and old concrete at the bottom of the beam, the chiseled concrete surface needs to be plastered and repaired, and after the repair is completed, the cement base layer is set for waterproofing.

[0058] The utility model has the following technical effects compared with the prior art:

[0059] The first water stop member 21 is provided at the connection between the upper part of the formwork device 1 and the first original structure 51, which can improve the anti-leakage ability of the formwork device 1 and is beneficial to the application of the formwork device 1 in the construction of a large-angle inclined concrete exterior wall. After the construction of the large-angle inclined concrete exterior wall is completed, the first water stop member 21 is embedded at the junction of the new and old concrete of the inclined exterior wall, which is beneficial to improving the anti-seepage and leakage prevention effect at the junction of the new and old concrete of the inclined exterior wall; in addition, the first reinforcement member 23 reinforces the bottom, the tie rod assembly 14 tightens the inner formwork 11 and the outer formwork 12, and the reinforced wooden box F reinforces the window opening E. These measures can reduce the deformation of the formwork device 1 during concrete pouring; the first sealing member 22 at the bottom can effectively prevent slurry leakage at the bottom of the formwork device 1 during concrete pouring.

[0060] At the same time, the first side formwork device 3 of the present device is arranged on the first side A of the formwork device 1, which can support the formwork device 1. This design improves the stability of the large-angle inclined setting of the formwork device 1. At the same time, since the bottom of the formwork device 1 is reinforced by the first reinforcement member 23 and is not easily displaced, the anti-horizontal thrust performance of the first side formwork device 3 is indirectly improved; preferably, the first side formwork device 3 is also fixedly connected to the first original structure 51 and the second original structure 52 through steel bars 61 or expansion bolts 62, which directly improves the anti-horizontal thrust performance of the first side formwork device 3; more preferably, the first side formwork device 3 is also provided with a strut G for support, which can further directly improve the stability of the first side formwork device 3, enable it to better support the formwork device 1, reduce the possibility of deformation of the formwork device 1, and avoid the problem of instability of the formwork device 1 caused by the large-angle inclined concrete exterior wall during the pouring and forming process, and improve the pouring effect and forming quality of the large-angle inclined concrete exterior wall.

[0061] Furthermore, the second side formwork device 4 is also connected with the first side formwork device 3 through the window opening E, so that the entire formwork and anti-leakage slurry device of the utility model is connected into a "systematic" structure, which enhances the stability of the inclined setting of the formwork device 1, so that it can better pour concrete, thereby forming a large-angle inclined concrete exterior wall.

[0062] For other contents of the formwork and slurry leakage prevention device for large-angle inclined concrete exterior walls described in the utility model, please refer to the prior art and will not be repeated here.

[0063] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A formwork anti-leakage device for a large-angle inclined concrete exterior wall, characterized in that It includes a formwork device, a first waterstop, a first seal, a first reinforcement, and a first side formwork device; the formwork device has a forming cavity and a pouring opening; the forming cavity is communicated with the pouring opening; the formwork device can be arranged at the position for constructing an inclined external wall, and is used for the casting and forming of a large-angle inclined concrete external wall; the first waterstop is arranged at the connection between the upper part of the formwork device and the first original structure; the first seal and the first reinforcement are arranged at the connection between the lower part of the formwork device and the second original structure; the first side formwork device is arranged on the first side of the formwork device and is used for supporting the first side of the formwork device.

2. The formwork anti-leakage slurry device for large-angle inclined concrete exterior walls according to claim 1, characterized in that, It further includes a fixing assembly; the first side formwork device is fixed between the first original structure and the second original structure through the fixing assembly.

3. The formwork anti-leakage slurry device for large-angle inclined concrete exterior walls according to claim 2, wherein, The fixing assembly is a steel bar or an expansion bolt.

4. The formwork anti-leakage slurry device for large-angle inclined concrete exterior walls according to claim 1, wherein, It further includes a rakings; the rakings are obliquely connected with the first side formwork device.

5. The formwork anti-leakage slurry device for a large-angle inclined concrete exterior wall according to any one of claims 1 to 4, characterized in that, It further includes a window opening and a reinforcing wooden box; the formwork device is provided with the window opening; the reinforcing wooden box is arranged at the window opening and is used for reinforcing the window opening.

6. The formwork anti-leakage slurry device for a large-angle inclined concrete exterior wall according to claim 5, characterized in that, It further includes a second side formwork device, the second side formwork device is arranged on the second side of the formwork device, and the second side formwork device is connected with the first side formwork device through the window opening.

7. The formwork leakage prevention device for large-angle inclined concrete exterior walls according to any one of claims 1 to 4, characterized in that The first side formwork device includes a vertical pole, a first-direction rod, and a second-direction rod; the first end of the vertical pole can be connected to the first original structure, and the second end of the vertical pole can be connected to the second original structure; the first-direction rod is arranged along the first direction and can connect several vertical poles in the first direction; the second-direction rod is arranged along the second direction and can connect several vertical poles in the second direction; the vertical pole, the first-direction rod, and the second-direction rod can form a formwork framework, and the second-direction rod can be connected with the formwork device.

8. The formwork anti-leakage slurry device for a large-angle inclined concrete exterior wall according to any one of claims 1 to 4, characterized in that, The formwork device further includes an inner formwork, an outer formwork, wooden battens, a tie rod assembly, and a steel pipe assembly; the forming cavity is formed between the inner formwork and the outer formwork; the outer formwork has an inclined plate, and the inclined plate forms the pouring opening inward; several wooden battens are respectively arranged on the inner formwork and the outer formwork; several groups of steel pipe assemblies are respectively blocked on the wooden battens on the first side and the wooden battens on the second side, and the tie rod assembly passes through the inner formwork and the outer formwork to connect the steel pipe assemblies on both sides.

9. The formwork anti-leakage slurry device for large-angle inclined concrete exterior walls according to any one of claims 1 to 4, characterized in that, The first reinforcement is an angle iron; after the formwork device is arranged, angle irons are arranged on the first side and the second side at the bottom.

10. The formwork anti-leakage slurry device for a large-angle inclined concrete exterior wall according to any one of claims 1 to 4, characterized in that, The first waterstop is a water-swellable waterstop strip; the first seal is a sealing strip.