External corner formwork assembly of shear wall
By designing a corner formwork component suitable for wooden formwork, the problem of reinforcing the external corners of non-right-angle shear walls was solved, achieving a low-cost and highly reliable reinforcement effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-24
AI Technical Summary
Existing technologies are insufficient to effectively reinforce the external corners of non-right-angle shear walls, and the cost of custom-made aluminum formwork is high.
An external corner template assembly was designed, comprising a wooden template, a steel back rib, a pressure plate, a connecting shaft, a wedge plate, and an angle limiting component. By adjusting the angle of the pressure plate and connecting the wedge plate with the steel back rib, it can adapt to external corners of different angles and maintain stability through the angle limiting component.
It enables reliable reinforcement of the external corners of shear walls at different angles, reduces construction costs, eliminates the need for customized aluminum formwork, and improves the flexibility and reliability of construction.
Smart Images
Figure CN224032158U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of casting formwork technology, and in particular to a corner formwork assembly for shear walls. Background Technology
[0002] In the construction of cast-in-place shear walls, the quality control of the pouring at the external corners is of paramount importance. Traditional wooden formwork construction typically uses angled tie rods to reinforce the steel backing at the external corners to minimize problems such as loose joints and grout leakage. However, for some special construction areas, the external corners may not be 90°, but other angles. Conventional wooden formwork is ill-suited for pouring at non-right-angle external corners. While aluminum formwork can be customized to match the angle of the external corner with L-shaped corners, the entire aluminum formwork needs to be custom-made, resulting in higher costs.
[0003] Therefore, there is a need for a formwork component suitable for wooden formwork casting that can reinforce external corners at different angles. Utility Model Content
[0004] Therefore, it is necessary to provide a corner formwork assembly for shear walls, and its specific technical solution is as follows.
[0005] A shear wall external corner formwork assembly includes two wooden formwork pieces located on both sides of the external corner of the shear wall; the back of the wooden formwork is covered with a steel back rib, and the steel back rib is provided with a first slot; characterized in that it further includes an external corner reinforcement component, the external corner reinforcement component comprising:
[0006] The pressure plate has a second slot;
[0007] The connecting shaft and two pressure plates are rotatably connected to the connecting shaft to form a cross shape, so that the two pressure plates form a first angle groove and a second angle groove arranged opposite to each other; the first angle groove is engaged with the wooden formwork on both sides of the external corner of the shear wall;
[0008] A wedge-shaped plate passes through the first and second slots to connect the steel back rib to the pressure plate;
[0009] An angle limiting component includes a plug and a connecting screw; the plug is filled into a second angle groove; the connecting screw connects the pressure plate and the plug.
[0010] Furthermore, the pressure plate includes a first plate, a second plate, and a connecting plate; the first plate and the second plate are parallel and form a gap; the connecting plate is located in a second angle groove and connects the first plate and the second plate; the connecting screw passes through the connecting plate and connects to the plug.
[0011] Furthermore, the connecting plate is provided with through holes for the connecting screws to pass through.
[0012] Furthermore, the plug is a wooden plug, and the connecting screw passes through the connecting plate and is inserted into the wooden plug.
[0013] Furthermore, the plug includes a first inclined surface and a second inclined surface, the extension surface of the first inclined surface intersects the extension surface of the second inclined surface; the first inclined surface and the second inclined surface respectively abut against the two sides of the second angle groove.
[0014] Furthermore, the angle formed by the first inclined surface and the second inclined surface of the different plugs is different.
[0015] Furthermore, the plug includes a locking clamp and multiple unit blocks, each unit block having two intersecting inclined surfaces, and the inclined surfaces of the multiple unit blocks are sequentially fitted together; the locking clamp is sleeved on the outer surface of the multiple unit blocks.
[0016] Furthermore, the locking clamp is made of sheet metal, which is welded into a ring after surrounding multiple unit blocks.
[0017] Beneficial effects: The shear wall external corner formwork assembly provided by this utility model can adjust the angle of the first angle groove by adjusting the two pressure plates, thereby adapting to the external corner structure of shear walls with different angles; and the wedge plate can directly connect the pressure plate and the steel back rib on the back of the wooden formwork, eliminating the need for custom-made aluminum formwork structures during construction, and can be directly applied to the reinforcement of wooden formwork, resulting in relatively lower costs; the angle limiting component can maintain the angle limitation of the first angle groove, thereby improving reliability. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of the external corner template component;
[0020] Figure 2 Overall schematic diagram of the corner reinforcement component;
[0021] Figure 3 A partial schematic diagram of the corner reinforcement component;
[0022] Figure 4 This is a schematic diagram of a stopper.
[0023] Explanation of reference numerals in the attached drawings: 1. Wooden template; 2. Steel back rib; 3. Tie rod; 4. Pressure plate; 5. Connecting shaft; 6. Wedge plate; 7. Angle limiting component; 8. First angle groove; 9. Second angle groove;
[0024] 21. First slot;
[0025] 41. Second slot; 42. First plate; 43. Second plate; 44. Connecting plate; 45. Through hole;
[0026] 71. Plug; 72. Connecting screw;
[0027] 711. First inclined surface; 712. Second inclined surface; 713. Locking clamp; 714. Unit block. Detailed Implementation
[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0034] Example
[0035] This embodiment provides a corner formwork assembly for a shear wall, referring to... Figure 1 As shown, the structure includes two wooden formwork panels 1 located on either side of the external corner of the shear wall. A steel backing rib 2 is pressed onto the back of each wooden formwork panel 1, and the steel backing rib 2 can be fixed to the inner formwork panel by tie rods 3. A first slot 21 is provided on the steel backing rib 2.
[0036] Reference Figure 2 As shown, it also includes a corner reinforcement component to strengthen the template at the corner. The corner reinforcement component in this embodiment is angle-adjustable and suitable for reinforcing corners at special locations where the angle is not 90°.
[0037] Specifically, the external corner reinforcement includes two pressure plates 4, a connecting shaft 5, a wedge plate 6, and an angle limiting component 7. The pressure plates 4 are provided with a second slot 41. The two pressure plates 4 are rotatably connected to the connecting shaft 5 to form a cross shape, so that the two pressure plates 4 form a first angle groove 8 and a second angle groove 9 arranged opposite to each other. The first angle groove 8 engages with the wooden template 1 on both sides of the external corner of the shear wall; one pressure plate 4 presses against the back of one template, and the other pressure plate 4 presses against the back of another wooden template 1. Adjusting the relative rotation of the two pressure plates 4 can adjust the angle to adapt to different angles of the external corner.
[0038] Specifically, in this embodiment, the connecting shaft 5 is provided with a limiting member to restrict the movement of the pressure plate 4 along the axial direction of the connecting shaft 5.
[0039] In this embodiment, the connecting shaft 5 is provided with a plurality of pressure plates 4 arranged in a vertical direction, and the pressure plates 4 correspond to the steel back ribs 2.
[0040] Specifically, the wedge plate 6 passes through the first slot 21 and the second slot 41, connecting the steel back rib 2 with the pressure plate 4, thereby fixing the external corner reinforcement and reinforcing the external corner position.
[0041] Specifically, the angle limiting component 7 includes a plug 71 and a connecting screw 72. The plug 71 fills the second angle groove 9, which is located away from the external corner. The connecting screw 72 connects the pressure plate 4 and the plug 71. By filling the second angle groove 9 with the plug 71 and connecting the pressure plate 4 and the plug 71 with the connecting screw 72, the angle of the second angle groove 9 can be limited, thereby limiting the angle of the first angle groove 8 and ensuring stability.
[0042] This embodiment provides a shear wall external corner formwork assembly. By adjusting the two pressure plates 4, the angle of the first angle groove 8 can be adjusted to adapt to different angles of shear wall external corner structures. Furthermore, the wedge plate 6 can directly connect the pressure plate 4 and the steel back rib 2 on the back of the wooden formwork 1. During construction, there is no need to customize a specific aluminum formwork structure, and it can be directly applied to the reinforcement of the wooden formwork 1, resulting in relatively lower costs. The angle limiting component 7 can maintain the angle limitation of the first angle groove 8, thereby improving reliability.
[0043] Specifically, refer to Figure 3 As shown, the pressure plate 4 includes a first plate 42, a second plate 43, and a connecting plate 44. The first plate 42 and the second plate 43 are parallel and form a gap; the connecting plate 44 is located in the second angle groove 9 and connects the first plate 42 and the second plate 43; the connecting screw 72 passes through the connecting plate 44 and connects to the plug 71. When the plug 71 is inserted, both sides of the plug 71 abut against the connecting plates 44 of the two pressure plates 4 respectively.
[0044] Specifically, in this embodiment, the plug 71 is a wooden plug, and the connecting plate 44 has a through hole 45 for the connecting screw 72 to pass through. The connecting screw 72 passes through the connecting plate 44 and is inserted into the wooden plug. In actual construction, the wooden workpiece can be marked and cut according to the angle of the external corner to form a plug 71 of the corresponding shape. In other embodiments, a plastic plug 71 of the corresponding shape can also be prefabricated according to the angle of the external corner. Therefore, when facing external corners with different angles, only the plug 71 of different shapes needs to be replaced, without replacing the entire external corner reinforcement, thus controlling costs.
[0045] Specifically, the plug 71 includes a first inclined surface 711 and a second inclined surface 712, the extension surface of the first inclined surface 711 intersects the extension surface of the second inclined surface 712; the first inclined surface 711 and the second inclined surface 712 respectively abut against the two sides of the second angle groove 9. In preparing the plug 71, lines corresponding to the first inclined surface 711 and the second inclined surface 712 are marked on the wooden workpiece according to the external angle, and then cut to form the plug 71.
[0046] Specifically, the different plugs 71 prepared according to different angled structures have different included angles formed by the first inclined surface 711 and the second inclined surface 712.
[0047] Specifically, refer to Figure 4 As shown, the plug 71 can also be manufactured using other methods instead of cutting. For example, the plug 71 includes a locking band 713 and multiple unit blocks 714. Each unit block 714 includes two intersecting inclined surfaces, and the inclined surfaces of the multiple unit blocks 714 are sequentially fitted together. The locking band 713 is fitted onto the outer surface of the multiple unit blocks 714. The locking band 713 is made of sheet metal, which is welded into a ring after surrounding the multiple unit blocks 714. Different numbers of unit blocks 714 can be selected according to different external angles to achieve the effect of reuse.
[0048] Usage process: Prepare plugs 71 of corresponding shape and size according to the angle of the external corner. Install the wooden template 1 and the steel back rib 2 structure. Adjust the pressure plate 4 so that the angle of the first angle groove 8 corresponds to the angle of the external corner. Insert the plug 71 into the second angle groove 9, and drive the connecting screw 72 through the through hole 45 on the connecting plate 44 into the plug 71. Fit the first angle groove 8 into the wooden template 1 on both sides of the external corner, and use the wedge plate 6 to connect the pressure plate 4 and the steel back rib 2.
[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A corner formwork assembly for a shear wall, comprising two wooden formworks respectively located on two sides of a corner of the shear wall; a steel back rib is pressed on the back of each wooden formwork, and a first insertion slot is arranged on the steel back rib; characterized in that, The external corner reinforcing piece further comprises: a pressing plate provided with a second slot; a connecting shaft, the two pressing plates are respectively connected with the connecting shaft to form a cross shape, so that the two pressing plates form a first angle slot and a second angle slot arranged oppositely; the first angle slot is clamped at the wooden formwork on both sides of the external corner of the shear wall; a wedge-shaped plate, the wedge-shaped plate is connected with the pressing plate through the first slot and the second slot; an angle limiting piece comprising a plug and a connecting screw; the plug is filled into the second angle slot; the connecting screw is connected with the pressing plate and the plug.
2. A corner form assembly for a shear wall according to claim 1, wherein, The pressing plate comprises a first plate body, a second plate body and a connecting plate; the first plate body and the second plate body are parallel and form a gap; the connecting plate is located in the second angle slot and connects the first plate body and the second plate body; the connecting screw is connected with the plug after passing through the connecting plate.
3. A corner form assembly for a shear wall according to claim 2, wherein, The connecting plate is provided with a through hole through which the connecting screw passes.
4. A corner form assembly for shear walls according to claim 2, wherein, The plug is a wooden plug, and the connecting screw is inserted into the wooden plug after passing through the connecting plate.
5. The outside corner form assembly for shear walls of claim 1, wherein, The plug comprises a first inclined surface and a second inclined surface, and the extension surface of the first inclined surface intersects with the extension surface of the second inclined surface; the first inclined surface and the second inclined surface respectively abut on two side edges of the second angle slot.
6. A corner form assembly for a shear wall according to claim 5, wherein, The included angle formed by the first inclined surface and the second inclined surface of different plugs is different.
7. A corner form assembly for shear walls according to claim 6 wherein, The plug comprises a locking hoop and a plurality of unit blocks; the unit block comprises two inclined surfaces intersecting with each other, and the inclined surfaces of the plurality of unit blocks are sequentially attached; the locking hoop is sleeved on the outer surface of the plurality of unit blocks.
8. A corner form assembly for a shear wall according to claim 7, wherein, The locking hoop is an iron sheet, and the iron sheet is welded into a ring after surrounding the plurality of unit blocks.