Variable-angle internal corner plastering device

Abstract

The utility model belongs to the field of building construction, and particularly relates to a variable-angle internal corner plastering device which comprises a plastering plate A and a plastering plate B which are hinged together, two horizontal connecting rods A are hinged to the inner side face of the plastering plate A, two horizontal connecting rods B are hinged to the inner side face of the plastering plate B, strip holes are formed in the connecting rods A and the connecting rods B, inserting seams are formed in the side faces of the connecting rods B, and the connecting rods A penetrate through the inserting seams. A threaded rod vertically penetrates through the strip holes of the connecting rods A and the connecting rods B, nuts are arranged at the upper end and the lower end of the threaded rod, and the threaded rod between the upper connecting rod and the lower connecting rod B is sleeved with a sleeve. According to the device, internal corner plastering adjustment at different angles can be supported, the time for manufacturing a disposable template is saved, the construction period is shortened, the device can be recycled, the cost is saved, and meanwhile, compared with manual plastering, the plastering quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, and in particular relates to a variable angle inside corner plastering device. Background Technology

[0002] An inside corner refers to the concave angle formed by the intersection of two adjacent walls or planes, i.e., the part where the included angle is less than 180°. Currently, most inside corner plastering tools on the market are designed for 90°. For inside corners beyond 90°, disposable plastering tools are mostly used, with wooden or plastic templates temporarily made according to the corner angle. These templates are discarded after construction, resulting in material waste and high overall costs. Furthermore, making disposable plastering tools also delays the construction period. Some construction methods rely directly on workers' experience for manual plastering, supplemented by a ruler for calibration. This method has uncontrollable quality and is prone to angle deviations and uneven lines. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a variable angle inside corner finishing device.

[0004] This invention is achieved through the following technical solution:

[0005] A corner-scraping device includes a scraper A and a scraper B hinged together. Two horizontal connecting rods A are symmetrically hinged to the inner side of scraper A, and two horizontal connecting rods B are symmetrically hinged to the inner side of scraper B. Both connecting rods A and B have slots. The side of connecting rod B has a slot along the length of connecting rod B. Connecting rod A passes through the slot. A threaded rod passes vertically through the slots of connecting rods A and B. Nuts are provided at the upper and lower ends of the threaded rod. A sleeve is fitted on the threaded rod between the upper and lower connecting rods B. The length of the sleeve is equal to the distance between the upper and lower connecting rods B.

[0006] Preferably, the squeegee A is fixed with a shaft cylinder A on both the top and bottom of the side away from the connecting rod A, and the squeegee B is fixed with a shaft cylinder B in the middle of the side away from the connecting rod B. The shaft cylinder B is provided with a shaft core, and the shaft cylinder A is sleeved on the shaft core and rotatably connected to the shaft core.

[0007] Preferably, the thickness of the slot is equal to the thickness of connecting rod A.

[0008] Preferably, a washer is provided between the nut and the connecting rod B.

[0009] Preferably, two sets of connecting blocks A are fixed on the upper and lower sides of the inner side of the squeegee A, the end of the connecting rod A is located between the connecting blocks A, and the connecting rod A and the connecting blocks A are hinged together by a pin.

[0010] Preferably, the inner side of the squeegee B is fixed with connecting blocks B on both the top and bottom. The connecting blocks B are located inside the slot of the connecting rod B, and the connecting blocks B and the connecting rod B are hinged together by a pin.

[0011] The device of the present invention can support the plastering of inside corners at different angles. The angle is easy to adjust, saving the time of making disposable templates, saving construction time, and can be reused to save costs. At the same time, compared with manual plastering, it ensures the quality of plastering. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0013] Figure 2 This is a schematic diagram of the overall structure from another angle in this embodiment;

[0014] Figure 3 This is a schematic diagram of the disassembled structure in this embodiment;

[0015] Figure 4 This is a schematic diagram of the split structure from another angle in this embodiment;

[0016] Figure 5 This is a schematic diagram of the structure of squeegee A in this embodiment;

[0017] Figure 6 This is an enlarged structural diagram of link A in this embodiment;

[0018] Figure 7 This is an enlarged structural diagram of link B in this embodiment;

[0019] Figure 8 This is a top view of this embodiment.

[0020] In the diagram, 1 is trowel A, 2 is trowel B, 3 is connecting rod A, 4 is connecting rod B, 5 is a hole, 6 is a slot, 7 is a threaded rod, 8 is a nut, 9 is a sleeve, 10 is a shaft sleeve A, 11 is a shaft sleeve B, 12 is a shaft core, 13 is a washer, 14 is a connecting block A, 15 is a connecting block B, and 16 is a pin. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0022] The corner smoothing device of this embodiment includes a smoothing plate A1 and a smoothing plate B2. Smoothing plates A1 and B2 are hinged together on one side, allowing them to rotate relative to each other to adjust the included angle to match the corner angle. There are various ways to hinge smoothing plates A1 and B2 together, as long as they allow relative rotation; no special restrictions are imposed. One such method is described in this embodiment: A shaft cylinder A10 is fixed at both the top and bottom on one side of smoothing plate A1, and a shaft cylinder B11 is fixed in the middle on one side of smoothing plate B2. A shaft core 12 is provided inside shaft cylinder B11. The upper and lower shaft cylinders A10 are respectively sleeved on the upper and lower parts of the shaft core 12, and the shaft cylinders A10 and shaft core 12 are rotatably connected together, similar to the structure between two blades of a hinge.

[0023] Two horizontal connecting rods A3 are symmetrically hinged vertically on the inner side of the trowel A1 away from the hinge, and the connecting rods A3 are rotatable. Two horizontal connecting rods B4 are symmetrically hinged vertically on the inner side of the trowel B2 away from the hinge, and the connecting rods B4 are rotatable. Both connecting rods A3 and B4 have slots 5 along their length but do not penetrate through them. A slot 6 along the length of connecting rod B4 is provided on its side, with a thickness equal to the thickness of connecting rod A3. Connecting rod A3 passes through the corresponding slot 6 of connecting rod B4. A threaded rod 7 passes vertically through the slots 5 of the upper and lower connecting rods A3 and B4, and nuts 8 are provided at both the upper and lower ends of the threaded rod 7. A sleeve 9 is fitted onto the threaded rod 7 between the upper and lower connecting rods B4. The length of the sleeve 9 is exactly equal to the distance between the upper and lower connecting rods B4, and the inner diameter of the sleeve 9 is equal to the outer diameter of the threaded rod 7. Sleeve 9 is used to limit the movement of the upper and lower connecting rods B4, and also to make the connecting rods A3 and B4 more secure when fixed. To make the nut 8 tighten and the structure more secure, a washer 13 can be placed between the nut 8 and the connecting rod B4, or a washer 13 can also be placed between sleeve 9 and connecting rod B4.

[0024] The aforementioned connecting rods A3 and B4 can be hinged to the trowel A1 and trowel B2 respectively in various ways. In the attached drawings of this embodiment, two sets of connecting blocks A14 are fixed on the upper and lower sides of the inner side of the trowel A1, with two connecting blocks A14 in each set. The end of the connecting rod A3 is located between the two connecting blocks A14, and the connecting rod A3 and the connecting blocks A14 are hinged together by the pin 16. Connecting blocks B15 are fixed on the upper and lower sides of the inner side of the trowel B2, and the connecting blocks B15 are located in the slot 6 of the connecting rod B4. The connecting blocks B15 and the connecting rod B4 are hinged together by the pin 16.

[0025] During construction, adjust the included angle between trowel A1 and trowel B2 according to the inside corner angle, loosen the upper and lower nuts 8, and rotate trowel A1 and trowel B2. Then, connecting rod A3 and connecting rod B4 will rotate respectively. The threaded rod 7 can slide in the slot 5 of connecting rod A3 and connecting rod B4. At the same time, connecting rod A3 can slide in the slot 6 of connecting rod B4. After adjusting to the designed angle, tighten the upper and lower nuts 8 to fix connecting rod A3 and connecting rod B4 together, so that trowel A1 and trowel B2 can no longer rotate. Then, use the device to perform the troweling construction.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A variable-angle corner finishing device, characterized in that: The slurry includes a slurry plate A (1) and a slurry plate B (2) hinged together. The inner side of the slurry plate A (1) is symmetrically hinged with two horizontal connecting rods A (3) and the inner side of the slurry plate B (2) is symmetrically hinged with two horizontal connecting rods B (4). Both connecting rods A (3) and B (4) are provided with slots (5). The side of the connecting rod B (4) is provided with a slot (6) along the length of the connecting rod B (4). The connecting rod A (3) passes through the slot (6). A threaded rod (7) passes vertically through the slots (5) of the connecting rods A (3) and B (4). Nuts (8) are provided at the upper and lower ends of the threaded rod (7). A sleeve (9) is fitted on the threaded rod (7) between the upper and lower connecting rods B (4). The length of the sleeve (9) is equal to the distance between the upper and lower connecting rods B (4).

2. The corner smoothing device according to claim 1, characterized in that: The squeegee A (1) is fixed with a shaft cylinder A (10) on the side away from the connecting rod A (3) and a shaft cylinder B (11) is fixed in the middle on the side away from the connecting rod B (4). A shaft core (12) is provided inside the shaft cylinder B (11). The shaft cylinder A (10) is sleeved on the shaft core (12) and rotated together with the shaft core (12).

3. The corner smoothing device according to claim 1, characterized in that: The thickness of the slot (6) is equal to the thickness of the connecting rod A (3).

4. The corner smoothing device according to claim 1, characterized in that: A washer (13) is provided between the nut (8) and the connecting rod B (4).

5. The corner smoothing device according to claim 1, characterized in that: The inner side of the squeegee A (1) is fixed with two sets of connecting blocks A (14) on both the top and bottom. The end of the connecting rod A (3) is located between the connecting blocks A (14). The connecting rod A (3) and the connecting blocks A (14) are hinged together by the pin (16).

6. The corner smoothing device according to claim 1, characterized in that: The inner side of the trowel B (2) is fixed with connecting blocks B (15) on both the top and bottom. The connecting blocks B (15) are located in the slot (6) of the connecting rod B (4). The connecting blocks B (15) and the connecting rod B (4) are hinged together by the pin (16).

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