Right-angle plastering trowel

Abstract

The utility model discloses a right-angle type plastering trowel, which belongs to the technical field of building tools and comprises a main cutter plate, the top of the main cutter plate is fixedly connected with a trowel handle, and the top of the main cutter plate is fixedly connected with a pair of shells. By arranging the auxiliary cutting board and the adjusting assembly, plastering can be conveniently carried out on the right-angle intersection of the wall face, the auxiliary cutting board and the main cutting board are kept perpendicular, the main cutting board and the auxiliary cutting board are perfectly attached to the corner at the right-angle intersection of the wall face, wall corner plastering is smooth and attractive, the adjusting assembly can drive the auxiliary cutting board to ascend and descend, and a toothed plate can slide out conveniently; by arranging the containing groove, the toothed plate and the locking assembly, the length of protruding teeth of the toothed plate can be adjusted, the toothed plate can slide in the containing groove, the length of the protruding teeth can be easily changed, fine operation can be achieved when the toothed plate meets a thin plaster layer, the tooth length is shortened, thick layers can be met, the tooth pitch is lengthened, efficient paving can be achieved, various working conditions can be coped, the tool replacement frequency is reduced, and the cost is saved; the locking assembly can lock the toothed plate so that the toothed plate can be kept stable.

Description

Technical Field

[0001] This utility model belongs to the field of building tools technology, specifically a right-angle plastering trowel. Background Technology

[0002] A plastering trowel is an important construction tool. It mainly consists of a blade, a handle, and connecting parts. The blade, as the part that directly contacts the plastering material, is usually made of wear-resistant metal, such as stainless steel or carbon steel, to ensure that it can smoothly spread various types of mortar.

[0003] The existing plastering trowels have the following shortcomings: they are not convenient for plastering right-angle intersections on walls, and the length of the protruding teeth on the trowel cannot be adjusted. When working at right-angle intersections on walls, due to the limited shape of the trowel, it is difficult to fit tightly, resulting in uneven plastering at the corners, often leaving unsightly gaps and pits, which are troublesome to repair later. When encountering plaster layers of different thicknesses, the redundant long teeth will scratch through the plaster layer, while the short teeth cannot meet the needs of thick layers, which greatly limits the scope of application and reduces construction efficiency and quality. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a right-angle plastering trowel, which solves the problems that existing plastering trowels are inconvenient for plastering at right-angle intersections on walls and that the length of the protruding teeth on the plastering trowel cannot be adjusted.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a right-angle plastering trowel, comprising a main blade plate, a handle fixedly connected to the top of the main blade plate, a pair of housings fixedly connected to the top of the main blade plate, a pair of slide rails fixedly connected to the opposite sides of the pair of housings, a secondary blade plate slidably connected to each slide rail, the secondary blade plate being perpendicular to the main blade plate, an adjustment component provided on each housing, and storage grooves provided on both sides of the main blade plate, with toothed plates slidably connected to the inner walls of the storage grooves, and a locking component provided on the top of the toothed plates.

[0006] As a further embodiment of this utility model: the adjustment component includes a rotating shaft and a rack. The rotating shaft is rotatably connected to the housing, and the rack is fixedly connected to one side of the auxiliary blade plate. A gear is coaxially fixedly connected to one end of the rotating shaft, and the gear meshes with the rack. A knob is coaxially fixedly connected to the other end of the rotating shaft.

[0007] As a further embodiment of this utility model: the locking assembly includes a connecting sleeve, which is fixedly connected to the top of the toothed plate. A threaded rod is rotatably connected to the bottom of the connecting sleeve. A lifting block is threadedly connected to the threaded rod. A pair of rubber blocks are fixedly connected to the bottom of the lifting block. A knob is coaxially fixedly connected to the top of the threaded rod.

[0008] As a further embodiment of this utility model: the connecting sleeve is provided with a pair of through holes, each of which is adapted to the lifting block.

[0009] As a further embodiment of this utility model: a pair of through slots are provided on the main blade plate, and each through slot is adapted to the connecting sleeve.

[0010] As a further embodiment of this utility model, both knob one and knob two are provided with anti-slip grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a secondary blade and an adjustment component, facilitates plastering at the intersection of right angles on the wall. The secondary blade and the main blade remain perpendicular, and at the intersection of right angles on the wall, the main and secondary blades fit perfectly into the corner, resulting in a smooth and beautiful plastering at the corner. The adjustment component can drive the secondary blade to rise and fall, making it easy for the toothed plate to slide out.

[0013] 2. This utility model achieves the adjustment of the protruding tooth length of the tooth plate by setting a storage groove, a toothed plate and a locking component. The tooth plate can slide in the storage groove to easily change the protruding tooth length. When encountering a thin plaster layer, shortening the tooth length allows for fine work, while lengthening the tooth spacing allows for efficient paving when encountering a thick layer. It can cope with various working conditions, reduce the frequency of tool replacement, and save costs. The locking component can lock the tooth plate to keep it stable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the adjustment component and housing of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the locking assembly and main blade plate of this utility model.

[0017] In the diagram: 1. Main blade plate; 2. Blade handle; 3. Housing; 4. Slide rail; 5. Secondary blade plate; 6. Storage slot; 7. Gear plate; 8. Shaft; 9. Rack; 10. Gear; 11. Knob 1; 12. Connecting sleeve; 13. Threaded rod; 14. Lifting block; 15. Rubber block; 16. Knob 2. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figures 1-3 As shown, this utility model provides a technical solution:

[0020] A right-angle plastering trowel includes a main blade plate 1, a handle 2 fixedly connected to the top of the main blade plate 1, a pair of housings 3 fixedly connected to the top of the main blade plate 1, a pair of slide rails 4 fixedly connected to the opposite sides of the pair of housings 3, a secondary blade plate 5 slidably connected to each slide rail 4, the secondary blade plate 5 being perpendicular to the main blade plate 1, an adjustment component provided on each housing 3, storage grooves 6 opened on both sides of the main blade plate 1, toothed plates 7 slidably connected to the inner wall of the storage grooves 6, a locking component provided on the top of the toothed plates 7, the adjustment component can drive the secondary blade plate 5 to slide on the pair of slide rails 4, the toothed plates 7 can slide in the storage grooves 6, and the locking component can lock the toothed plates 7;

[0021] The adjustment assembly includes a rotating shaft 8 and a rack 9. The rotating shaft 8 is rotatably connected to the housing 3, and the rack 9 is fixedly connected to one side of the secondary blade plate 5. A gear 10 is coaxially fixedly connected to one end of the rotating shaft 8, and the gear 10 meshes with the rack 9. A knob 11 is coaxially fixedly connected to the other end of the rotating shaft 8. The rotating shaft 8 can be rotated on the housing 3 by the knob 11. The gear 10 rotates with the rotating shaft 8. The housing 3 has an opening slot on the side near the rack 9. The gear 10 drives the secondary blade plate 5 to move through the rack 9 it meshes with.

[0022] The locking assembly includes a connecting sleeve 12, which is fixedly connected to the top of the toothed plate 7. A threaded rod 13 is rotatably connected to the bottom of the connecting sleeve 12. A lifting block 14 is threadedly connected to the threaded rod 13. A pair of rubber blocks 15 are fixedly connected to the bottom of the lifting block 14. A knob 16 is coaxially fixedly connected to the top of the threaded rod 13. The toothed plate 7 is moved by the connecting sleeve 12. When the toothed plate 7 needs to be locked, the threaded rod 13 is rotated by the knob 16. The threaded rod 13 drives the lifting block 14 to descend. The lifting block 14 drives the pair of rubber blocks 15 to clamp the main blade plate 1. The toothed plate 7 and the storage groove 6 are tightly pressed together by the connecting sleeve 12, so that the toothed plate 7 is locked. The rubber blocks 15 can increase the friction and prevent the main blade plate 1 from being scratched.

[0023] The connecting sleeve 12 has a pair of through holes, each of which is adapted to the lifting block 14. The lifting block 14 slides in the pair of through holes on the connecting sleeve 12. The through holes can prevent the lifting block 14 from rotating with the threaded rod 13.

[0024] The main blade plate 1 has a pair of through slots, each of which is adapted to the connecting sleeve 12, and the connecting sleeve 12 can move in the through slots on the main blade plate 1.

[0025] Both knob 11 and knob 2 16 are provided with anti-slip grooves to prevent fingers from slipping on the surface of knob 11 and knob 2 16.

[0026] The working principle of this utility model is as follows:

[0027] The toothed plate 7 slides in the storage groove 6 via the connecting sleeve 12. When the toothed plate 7 needs to be locked, the threaded rod 13 is rotated by the knob 16. The threaded rod 13 drives the lifting block 14 to descend. The lifting block 14 drives a pair of rubber blocks 15 to clamp the main blade plate 1. The toothed plate 7 and the storage groove 6 are tightly pressed together by the connecting sleeve 12, so that the toothed plate 7 is locked and kept stable. The length of the protruding teeth of the toothed plate 7 can be easily changed. When encountering a thin plaster layer, the tooth length can be shortened for fine work. When encountering a thick layer, the tooth pitch can be lengthened for efficient paving. It can cope with various working conditions, reduce the frequency of tool replacement, and save costs.

[0028] When the toothed plate 7 is fully slid into the storage slot 6, the rotating shaft 8 can be driven to rotate on the housing 3 by the knob 11. The gear 10 rotates with the rotating shaft 8. The housing 3 has an opening slot on the side near the rack 9. The gear 10 drives the secondary blade plate 5 to slide on a pair of slide rails 4 through the rack 9 it meshes with. When the secondary blade plate 5 descends to the appropriate position, the secondary blade plate 5 and the main blade plate 1 can perfectly fit the right angle intersection of the wall, making the wall corner plastering smooth and beautiful.

[0029] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A right-angle trowel comprising a main blade (1), characterised in that: The main blade plate (1) is fixedly connected to the top of the handle (2), and a pair of housings (3) are fixedly connected to the top of the main blade plate (1). A pair of slide rails (4) are fixedly connected to the opposite side of each pair of housings (3). A secondary blade plate (5) is slidably connected to each slide rail (4). The secondary blade plate (5) is perpendicular to the main blade plate (1). An adjustment component is provided on each housing (3). A storage groove (6) is provided on both sides of the main blade plate (1). A toothed plate (7) is slidably connected to the inner wall of the storage groove (6). A locking component is provided on the top of the toothed plate (7).

2. A right angle trowel according to claim 1 wherein: The adjustment assembly includes a rotating shaft (8) and a rack (9). The rotating shaft (8) is rotatably connected to the housing (3), and the rack (9) is fixedly connected to one side of the auxiliary blade plate (5). A gear (10) is coaxially fixedly connected to one end of the rotating shaft (8), and the gear (10) meshes with the rack (9). A knob (11) is coaxially fixedly connected to the other end of the rotating shaft (8).

3. A right angle trowel according to claim 2, wherein: The locking assembly includes a connecting sleeve (12), which is fixedly connected to the top of the toothed plate (7). A threaded rod (13) is rotatably connected to the bottom of the connecting sleeve (12). A lifting block (14) is threadedly connected to the threaded rod (13). A pair of rubber blocks (15) are fixedly connected to the bottom of the lifting block (14). A knob (16) is coaxially fixedly connected to the top of the threaded rod (13).

4. A right-angle plastering trowel according to claim 3, characterized in that: The connecting sleeve (12) has a pair of through holes, each of which is adapted to the lifting block (14).

5. A right-angle plastering trowel according to claim 4, characterized in that: The main blade plate (1) is provided with a pair of through slots, each of which is adapted to the connecting sleeve (12).

6. A right-angle plastering trowel according to claim 5, characterized in that: Both knob one (11) and knob two (16) are provided with anti-slip grooves.

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