Corner arc construction tool

Abstract

The utility model provides a corner arc construction tool which comprises a pressing plate, one side of the pressing plate is fixedly connected with a first arc-shaped plate, the other side of the pressing plate is fixedly connected with a second arc-shaped plate, and a brush sleeve is connected to the outer side of the second arc-shaped plate in an inserted mode. A handle is arranged above the pressing plate, a connecting shaft is fixedly connected to the bottom of the handle, a driving box is fixedly connected to the end, away from the handle, of the connecting shaft, a first motor is installed in the driving box, a switch is arranged at one end of the handle and electrically connected with the first motor, and a first output shaft is arranged in the first motor. The end, away from the first motor, of the first output shaft is provided with a rotating shaft, and the end, away from the first output shaft, of the rotating shaft is fixedly connected with a pressing plate. After cement mortar is plastered, pressed and laid by the first arc-shaped plate at one end of the pressing plate, a worker does not need to manually adjust the brush sleeve at the other end of the pressing plate to the position of the first arc-shaped plate, the positions of the brush sleeve and the first arc-shaped plate are exchanged by automatically rotating the pressing plate, and construction of the worker is facilitated.

Description

Technical Field

[0001] This utility model is a corner arc construction tool, belonging to the field of building construction technology. Background Technology

[0002] During roof waterproofing construction, cement mortar is typically used to round off the corners of the facade during the leveling layer construction to prevent excessive bending and damage to the roof waterproofing membrane during installation. The traditional method involves first laying mortar at the corners, then having workers use PVC pipes to squeeze the cement mortar into a rounded shape. This method is complex, and the rounded shape is prone to quality issues such as misalignment and pinholes. Incomplete cleaning of the squeezed cement mortar can cause secondary contamination of the leveling layer. Furthermore, the hardened cement mortar can form sharp corners that can easily puncture the roof waterproofing membrane after installation, affecting its waterproofing performance.

[0003] The existing corner rounding construction tool first lays cement mortar using a rounded plate at one end, and then uses a brush sleeve at the other end to ensure the cement mortar fully adheres to the rounded surface, thus eliminating quality problems such as misalignment and pinholes. After using the rounded plate, the worker needs to release the handle, then grip it in the opposite direction, and manually adjust the brush sleeve to the position on the rounded plate so that the worker can use it. However, this manual adjustment method is cumbersome and inconvenient for workers. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a corner arc construction tool to solve the problem mentioned in the background art: after the arc plate is used, the worker needs to release the hand holding the handle, then hold the handle in the opposite direction, and manually adjust the brush sleeve to the position of the arc plate so that the worker can use the brush sleeve. However, this manual adjustment method is cumbersome and inconvenient for the worker to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corner arc construction tool, comprising a pressure plate, a first arc-shaped plate fixedly connected to one side of the pressure plate, a second arc-shaped plate fixedly connected to the other side of the pressure plate, and a brush sleeve inserted into the outer side of the second arc-shaped plate; a handle is provided above the pressure plate, a connecting shaft is fixedly connected to the bottom of the handle, a drive box is fixedly connected to the end of the connecting shaft away from the handle, a first motor is installed inside the drive box, a switch is provided at one end of the handle, the switch is electrically connected to the first motor, a first output shaft is provided inside the first motor, a rotating shaft is provided at the end of the first output shaft away from the first motor, and the end of the rotating shaft away from the first output shaft is fixedly connected to the pressure plate.

[0006] Furthermore, a coupling is provided between the first output shaft and the rotating shaft, and the first output shaft is fixedly connected to the rotating shaft through the coupling.

[0007] Furthermore, a reinforcing plate is fixedly connected to one end of the rotating shaft near the pressure plate, and the reinforcing plate is connected to the internal thread of the pressure plate by a locking bolt.

[0008] Furthermore, both the pressure plate and the brush sleeve have fixing holes inside, and a fixing shaft is inserted into the fixing hole.

[0009] Furthermore, a mounting box is fixedly connected to the top of the brush sleeve, and a spur gear is provided inside the mounting box. Racks are meshed on both the upper and lower sides of the spur gear, and a connecting plate is fixedly connected to one end of the rack. The connecting plate is fixedly connected to the fixed shaft.

[0010] Furthermore, a guide plate is fixedly connected to the inner wall of the mounting box, a guide groove is provided on the inner side of the guide plate, and a sliding plate is fixedly connected to the outer wall of the rack, the sliding plate being slidably connected to the guide groove.

[0011] Furthermore, a second motor is installed on the outer wall of the mounting box, and a second output shaft is provided inside the second motor. The end of the second output shaft away from the second motor is fixedly connected to the spur gear.

[0012] The beneficial effects of this utility model are as follows: After the arc plate is used, the worker needs to release the hand holding the handle, then hold the handle in the opposite direction, and then manually adjust the brush sleeve to the position of the arc plate so that the worker can use the brush sleeve. However, this manual adjustment method is cumbersome and inconvenient for the worker to carry out the work.

[0013] In this application, the operator activates the first motor inside the drive box by pressing a switch, causing the first output shaft to drive the rotating shaft to rotate. The rotating shaft is fixedly connected to the pressure plate, which in turn drives the pressure plate to rotate. This allows the brush sleeve to rotate directly to the position of the first arc-shaped plate without the operator needing to manually adjust the position of the first arc-shaped plate. In summary, after the cement mortar is laid and pressed onto the first arc-shaped plate at one end of the pressure plate, the operator does not need to manually adjust the brush sleeve at the other end of the pressure plate to the position of the first arc-shaped plate. The brush sleeve and the first arc-shaped plate are automatically rotated to interchange positions, facilitating the operator's work. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1This is a front view of the overall structure of a corner arc construction tool according to this utility model;

[0016] Figure 2 This utility model relates to a corner arc construction tool. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This is an exploded structural diagram of a corner arc construction tool according to the present invention;

[0018] Figure 4 This utility model relates to a corner arc construction tool. Figure 3 Enlarged view of the structure at point B in the middle.

[0019] Figure 5 This is a side view of the overall structure of a corner arc construction tool according to this utility model.

[0020] Figure 6 This is a bottom view of the overall structure of a corner arc construction tool according to this utility model.

[0021] In the diagram: 1. Pressure plate; 2. First arc-shaped plate; 3. Second arc-shaped plate; 4. Rotating shaft; 5. Coupling; 6. First output shaft; 7. Drive box; 8. Connecting shaft; 9. Handle; 10. First motor; 11. Switch; 12. Brush sleeve; 13. Mounting box; 14. Second motor; 15. Second output shaft; 16. Spur gear; 17. Rack; 18. Sliding plate; 19. Guide plate; 20. Guide groove; 21. Connecting plate; 22. Fixed shaft; 23. Fixed hole; 24. Reinforcing plate; 25. Locking bolt. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-6 This utility model provides a technical solution: a corner arc construction tool, including a pressure plate 1, a first arc plate 2 fixedly connected to one side of the pressure plate 1, a second arc plate 3 fixedly connected to the other side of the pressure plate 1, and a brush sleeve 12 inserted into the outer side of the second arc plate 3; a handle 9 is provided above the pressure plate 1, a connecting shaft 8 is fixedly connected to the bottom of the handle 9, a drive box 7 is fixedly connected to the end of the connecting shaft 8 away from the handle 9, a first motor 10 is installed inside the drive box 7, a switch 11 is provided at one end of the handle 9, the switch 11 is electrically connected to the first motor 10, a first output shaft 6 is provided inside the first motor 10, a rotating shaft 4 is provided at the end of the first output shaft 6 away from the first motor 10, and the end of the rotating shaft 4 away from the first output shaft 6 is fixedly connected to the pressure plate 1.

[0024] Workers activate the first motor 10 inside the drive box 7 by pressing switch 11, causing the first output shaft 6 to drive the rotating shaft 4 to rotate. The rotating shaft 4 is fixedly connected to the pressure plate 1, which in turn drives the pressure plate 1 to rotate. This allows the brush sleeve 12 to rotate directly to the position of the first arc-shaped plate 2 without requiring manual adjustment by workers. In summary, once the cement mortar is laid and compacted by the first arc-shaped plate 2 at one end of the pressure plate 1, workers do not need to manually adjust the brush sleeve 12 at the other end of the pressure plate 1 to the position of the first arc-shaped plate 2. The brush sleeve 12 and the first arc-shaped plate 2 are automatically swapped by rotating the pressure plate 1, facilitating construction.

[0025] A coupling 5 is provided between the first output shaft 6 and the rotating shaft 4, and the first output shaft 6 is fixedly connected to the rotating shaft 4 through the coupling 5.

[0026] The coupling 5 serves as a connector, allowing the first output shaft 6 to be easily connected to the rotating shaft 4 via the coupling 5.

[0027] A reinforcing plate 24 is fixedly connected to one end of the rotating shaft 4 near the pressure plate 1, and the reinforcing plate 24 is connected to the internal thread of the pressure plate 1 by a locking bolt 25.

[0028] Among them, the reinforcing plate 24 and the pressure plate 1 are tightened with locking bolts 25, which makes the connection between the reinforcing plate 24 and the pressure plate 1 more secure and enhances the pre-tightening force between the reinforcing plate 24 and the pressure plate 1.

[0029] Both the pressure plate 1 and the brush sleeve 12 have fixing holes 23 inside, and a fixing shaft 22 is inserted into the fixing hole 23.

[0030] The fixed shaft 22 can be inserted into the fixed hole 23 on the pressure plate 1 and the brush sleeve 12, so that the brush sleeve 12 can be firmly installed and prevented from falling off.

[0031] The top of the brush sleeve 12 is fixedly connected to the mounting box 13. The mounting box 13 is equipped with a spur gear 16. The upper and lower sides of the spur gear 16 are meshed with racks 17. One end of the rack 17 is fixedly connected to a connecting plate 21. The connecting plate 21 is fixedly connected to the fixed shaft 22.

[0032] When the spur gear 16 is powered to rotate, the outer rack 17 begins to move under the drive of the spur gear 16. Since the rack 17 is fixedly connected to the fixed shaft 22 through the connecting plate 21, it drives the fixed shaft 22 to move.

[0033] A guide plate 19 is fixedly connected to the inner wall of the mounting box 13. A guide groove 20 is provided on the inner side of the guide plate 19. A sliding plate 18 is fixedly connected to the outer wall of the rack 17. The sliding plate 18 is slidably connected to the guide groove 20.

[0034] When the rack 17 moves, the sliding plate 18 fixedly connected to the outer wall of the rack 17 will slide in the guide groove 20, making the movement of the rack 17 more stable.

[0035] A second motor 14 is installed on the outer wall of the mounting box 13. A second output shaft 15 is provided inside the second motor 14. The end of the second output shaft 15 away from the second motor 14 is fixedly connected to a spur gear 16.

[0036] When the second motor 14 is started, the second output shaft 15 can drive the spur gear 16 to rotate, and the second motor 14 can provide power for the rotation of the spur gear 16.

[0037] Working Principle: When using this corner arc construction tool, the worker holds the handle 9 and uses the first arc-shaped plate 2 at one end of the pressure plate 1 to scoop up the mixed cement mortar and lay it sequentially at the corner. After laying, the worker holds the handle 9 so that the arc section of the pressure plate 1 is aligned with the 90-degree angle formed by the wall and the roof leveling layer, and applies the cement mortar at a 45-degree angle, ensuring the cement mortar fully fills the gaps formed by the wall, roof, and the arc end of the pressure plate 1. Then, the worker presses the switch 11 to start the first motor 10 inside the drive box 7, causing the first output shaft 6 to drive the rotating shaft 4 through the coupling 5. The rotating shaft 4 is fixedly connected to the pressure plate 1, thus driving the pressure plate 1 to rotate. This allows the brush sleeve 12 to directly rotate to the position of the first arc plate 2 without the worker needing to manually adjust its position. At this point, workers can apply the cement mortar by aligning the curved section of brush sleeve 12 with the 90-degree angle formed by the wall and roof leveling layer, pressing it at a 45-degree angle. This ensures the cement mortar adheres fully to the curved surface, eliminating quality issues such as misalignment and pinholes. In summary, once the first curved plate 2 at one end of the pressure plate 1 has applied the cement mortar, workers do not need to manually adjust the brush sleeve 12 at the other end of the pressure plate 1 to the position of the first curved plate 2. The pressure plate 1 is automatically rotated to swap the positions of the brush sleeve 12 and the first curved plate 2, facilitating construction.

[0038] Furthermore, after the brush sleeve 12 is inserted onto the second arc-shaped plate 3, the second motor 14 can be started, causing the second output shaft 15 to drive the spur gear 16 to rotate. Subsequently, the spur gear 16 drives the rack 17 to move. The guide plate 19 on the outer side of the rack 17 slides within the guide groove 20, making the movement of the rack 17 more stable. One end of the rack 17 is connected to the fixed shaft 22 via the connecting plate 21, thereby driving the fixed shaft 22 to insert into the fixing hole 23 inside the brush sleeve 12 and the pressure plate 1, ensuring that the brush sleeve 12 is securely installed and preventing the brush sleeve 12 from falling off during construction and affecting the construction process.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corner arc construction tool, comprising a pressure plate (1), characterized in that: A first arc plate (2) is fixedly connected to one side of the pressure plate (1), and a second arc plate (3) is fixedly connected to the other side of the pressure plate (1). A brush sleeve (12) is inserted into the outer side of the second arc plate (3). A handle (9) is provided above the pressure plate (1). A connecting shaft (8) is fixedly connected to the bottom of the handle (9). A drive box (7) is fixedly connected to the end of the connecting shaft (8) away from the handle (9). A first motor (10) is installed inside the drive box (7). A switch (11) is provided at one end of the handle (9). The switch (11) is electrically connected to the first motor (10). A first output shaft (6) is provided inside the first motor (10). A rotating shaft (4) is provided at the end of the first output shaft (6) away from the first motor (10). The end of the rotating shaft (4) away from the first output shaft (6) is fixedly connected to the pressure plate (1).

2. The corner arc construction tool according to claim 1, characterized in that: A coupling (5) is provided between the first output shaft (6) and the rotating shaft (4), and the first output shaft (6) is fixedly connected to the rotating shaft (4) through the coupling (5).

3. The corner arc construction tool according to claim 1, characterized in that: A reinforcing plate (24) is fixedly connected to one end of the rotating shaft (4) near the pressure plate (1), and the reinforcing plate (24) is connected to the internal thread of the pressure plate (1) by a locking bolt (25).

4. The corner arc construction tool according to claim 1, characterized in that: The pressure plate (1) and the brush sleeve (12) both have fixing holes (23) inside, and a fixing shaft (22) is inserted into the fixing hole (23).

5. A corner arc construction tool according to claim 4, characterized in that: The top of the brush sleeve (12) is fixedly connected to a mounting box (13). A spur gear (16) is provided inside the mounting box (13). A rack (17) is meshed on both the upper and lower sides of the spur gear (16). A connecting plate (21) is fixedly connected to one end of the rack (17). The connecting plate (21) is fixedly connected to the fixed shaft (22).

6. A corner arc construction tool according to claim 5, characterized in that: The inner wall of the mounting box (13) is fixedly connected to a guide plate (19), and a guide groove (20) is provided on the inner side of the guide plate (19). The outer wall of the rack (17) is fixedly connected to a sliding plate (18), and the sliding plate (18) is slidably connected to the guide groove (20).

7. A corner arc construction tool according to claim 5, characterized in that: The outer wall of the mounting box (13) is equipped with a second motor (14), and the interior of the second motor (14) is provided with a second output shaft (15). The end of the second output shaft (15) away from the second motor (14) is fixedly connected to the spur gear (16).

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