Plastering tool with adjustable radian

Abstract

The utility model discloses a radian-adjustable plastering tool, which relates to the technical field of building equipment, and comprises a plastering scraper blade, an adjusting mechanism is arranged at the front part of the plastering scraper blade, the adjusting mechanism comprises two supporting rods, the top and the bottom of the rear end of each supporting rod are rotatably connected to the position, close to the top and the bottom, of the rear part of the plastering scraper blade, close to the side edge; a rotary arm is fixedly connected to the front portion of the supporting rod, a connecting rod is fixedly connected to the position, close to the center, of the front portion of the plastering scraping plate, a lead screw is fixedly connected to the position, close to the center, of the rear portion of the connecting rod, and a sleeve is connected to the outer side of the lead screw in an engaged mode. And the problems that a traditional building device cannot adapt to internal corners and external corners with different radians, and the internal corners, the external corners and the planes cannot be plastered at the same time are solved, and the problems that the traditional building device cannot adapt to the internal corners and the external corners with different radians, and the internal corners, the external corners and the planes cannot be plastered at the same time are solved.

Description

Technical Field

[0001] The utility model relates to the field of building equipment, in particular to a plastering tool with adjustable curvature. Background Art

[0002] Plastering tools are tools used to apply cement mortar or plaster to walls or floors. They can help workers spread concrete, plaster and other materials evenly on the surface to make the surface flat and smooth. Using plastering tools can improve work efficiency and ensure construction quality. In construction projects and decoration, plastering tools are essential equipment and play a key role in completing the plastering work on walls or floors.

[0003] Existing plastering tools often find it difficult to adapt to the needs of different internal and external angles when dealing with complex wall corner curvatures. Most of them are designed for flat operations, which makes it difficult to achieve stable curvature transitions during construction through manual operations, affecting the beauty and quality of the overall plastering effect. Therefore, when dealing with curved wall corners, construction workers often need extra time and energy to make manual adjustments, which increases the difficulty and time cost of construction. Utility Model Content

[0004] The main purpose of the utility model is to provide a plastering tool with adjustable curvature, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A plastering tool with adjustable curvature comprises a plastering scraper, the front part of the plastering scraper is provided with an adjusting mechanism, the adjusting mechanism comprises two support rods, the top and bottom of the rear end of the support rod are rotatably connected to the rear part of the plastering scraper near the top and bottom of the side, the front part of the support rod is fixedly connected with a rotary arm, the front part of the plastering scraper near the center is fixedly connected with a connecting rod, the rear part of the connecting rod near the center is fixedly connected with a screw rod, the outer side of the screw rod is meshingly connected with a sleeve, the rear end of the outer side of the sleeve is movably connected with a fixed block near the front of the connecting rod, the front of the fixed block is fixedly connected with a limiting block, the front inner side of the limiting block is rotatably connected with a threaded block near the front, the inner side of the limiting block is movably connected to the outer side of the sleeve near the front of the fixed block, and the inner side of the threaded block is meshingly connected to the outer side of the sleeve near the front of the limiting block.

[0007] As a further solution of the utility model, one end of the rotary arm is rotatably connected to a support shaft, one side of the support shaft is fixedly connected to one side of a limit block, and a handle is fixedly connected to the bottom of the fixed block.

[0008] As a further solution of the utility model, the handle is tilted forward with the connection with the fixed block as the center, and circular shafts are symmetrically provided at the top and bottom of the support shaft near the other end.

[0009] As a further solution of the utility model, a groove is formed at one end of the rotary arm, and circular holes are formed at the top and bottom of the groove.

[0010] As a further solution of the utility model, the positions near the top and the bottom of both sides of the plastering scraper are curled, and the support rod has a V-shaped shape.

[0011] As a further solution of the utility model, a screw hole is opened at the rear end of the sleeve, and a thread is provided on the outer side of the sleeve, and a threaded hole is opened at the front part of the threaded block.

[0012] As a further solution of the utility model, a clamping ring is provided at the rear of the threaded block near the outer side of the threaded hole, a through hole is opened at the front of the limit block, and an annular groove is opened at the outer side near the through hole.

[0013] The beneficial effects of the utility model are as follows: by setting the adjustment mechanism, the plastering tool can flexibly cope with the internal and external angles of various arcs. This improvement enables the tool to adapt to the curvature change of the wall corner, realizes high-quality plastering work, improves the applicability of the tool, makes the plastering work more convenient and efficient, and helps to improve the quality of plastering;

[0014] By setting up a plastering scraper, multifunctional operation is achieved. This design allows construction workers to quickly switch the scraper shape on the same tool to cope with different construction occasions. Whether dealing with internal corners, external corners or flat surfaces, only the scraper needs to be adjusted to adapt to various angles and curvatures, reducing the frequency of tool replacement and improving construction efficiency. At the same time, it also ensures the consistency and quality of the plaster layer, making plastering operations easier and more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an arc-adjustable plastering tool of the utility model;

[0016] Figure 2 This is an internal structure diagram of an arc-adjustable plastering tool of the utility model;

[0017] Figure 3 The utility model is a kind of plastering tool with adjustable arc Figure 2 A magnified image of area A;

[0018] Figure 4 It is a schematic diagram of the extension of the screw rod of the curvature-adjustable plastering tool of the utility model;

[0019] Figure 5The utility model is a schematic diagram of adjusting the curvature of a plastering scraper of a plastering tool with adjustable curvature.

[0020] In the figure: 1. plastering scraper; 2. adjustment mechanism; 3. support rod; 4. swing arm; 5. fixing block; 6. handle; 7. sleeve; 8. connecting rod; 9. limit block; 10. threaded block; 11. support shaft; 12. screw rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-5 As shown, a plastering tool with adjustable curvature comprises a plastering scraper 1. An adjusting mechanism 2 is provided at the front of the plastering scraper 1. The adjusting mechanism 2 comprises two support rods 3. The top and bottom of the rear end of the support rod 3 are rotatably connected to the rear side of the plastering scraper 1 near the top and bottom. The front of the support rod 3 is fixedly connected to a rotary arm 4. The front of the plastering scraper 1 is fixedly connected to a connecting rod 8 near the center. The rear of the connecting rod 8 is fixedly connected to a screw rod 12 near the center. The outer side of the screw rod 12 is meshedly connected to a sleeve 7. The rear end of the outer side of the sleeve 7 is movably connected to a fixed block 5 near the front of the connecting rod 8. The front of the fixed block 5 is fixedly connected to a limiting block 9. The front inner side of the limiting block 9 is rotatably connected to a threaded block 10 near the front. The inner side of the limiting block 9 is movably connected to the outer side of the sleeve 7 near the front of the fixed block 5. The inner side of the threaded block 10 is meshedly connected to the outer side of the sleeve 7 near the front of the limiting block 9.

[0023] In this embodiment, one end of the swing arm 4 is rotatably connected to a support shaft 11 , one side of the support shaft 11 is fixedly connected to one side of the limit block 9 , and the bottom of the fixed block 5 is fixedly connected to a handle 6 .

[0024] The support shaft 11 can constrain the freedom of movement of the swing arm 4 so that the swing arm 4 can only rotate around the connection with the support shaft 11 .

[0025] In this embodiment, the handle 6 is tilted forward with the connection with the fixing block 5 as the center, and circular shafts are symmetrically provided at the top and bottom of the support shaft 11 near the other end.

[0026] The handle 6 can be used to perform plastering using a plastering tool, and the inclined handle 6 is more convenient for the user to hold.

[0027] In this embodiment, a groove is formed at one end of the rotary arm 4, and circular holes are formed at the top and bottom of the groove.

[0028] The swing arm 4 is connected to the support shaft 11 through the groove and the circular hole, and the swing arm 4 can drive the support rod 3 to move together with the movement.

[0029] In this embodiment, the positions near the top and the bottom of both sides of the plastering scraper 1 are curled, and the support rod 3 is V-shaped.

[0030] The plastering scraper 1 is connected to the support rods 3 via the curled portion, and can adapt to the angle change between the support rods 3 when the plastering scraper 1 is deformed.

[0031] In this embodiment, a screw hole is formed at the rear end of the sleeve 7 , and threads are formed on the outer side of the sleeve 7 , and a screw hole is formed at the front of the screw block 10 .

[0032] When the sleeve 7 rotates, the screw rod 12 can be driven to move, and when the threaded block 10 rotates, the sleeve 7 can be driven to move.

[0033] In this embodiment, a clamping ring is provided at the rear of the threaded block 10 near the outer side of the threaded hole, a through hole is provided at the front of the limit block 9, and an annular groove is provided near the outer side of the through hole.

[0034] The threaded block 10 is connected to the limit block 9 via a snap ring so that the threaded block 10 can rotate without falling off the limit block 9 .

[0035] It should be noted that the utility model is a plastering tool with adjustable curvature. When in use, the adjusting mechanism 2 can be used to plaster walls and circular columns with different curvatures, thereby increasing the adaptability of the plastering tool. At the same time, the plastering tool can be used to scrape the inner and outer corners and planes, thereby making the tool more functional and improving work efficiency.

[0036] The specific implementation method is to hold the handle 6, fit the rear part of the plastering scraper 1 to the wall surface, and then perform the plastering operation. When plastering the external corner, the threaded block 10 is rotated. The threaded block 10 is constrained by the limit block 9 and can only rotate in the original position. When the threaded block 10 rotates, the sleeve 7 is driven to move by the action of the thread. By rotating the threaded block 10 in different directions, the sleeve 7 can be controlled to move in different directions.

[0037] When the sleeve 7 moves, the screw rod 12 is driven to move together. Since the contact area between the sleeve 7 and the screw rod 12 is larger than the contact area with the threaded block 10, the sleeve 7 is moved toward the plastering scraper 1 through the threaded block 10. The friction between the sleeve 7 and the screw rod 12 is relatively large, so the threaded block 10 and the sleeve 7 first generate relative movement, and the sleeve 7 transmits the force to the plastering scraper 1 through the screw rod 12 and the connecting rod 8.

[0038] The middle part of the plastering scraper 1 moves backward, and while moving, the two sides of the plastering scraper 1 expand outward, thereby increasing the arc radius of the plastering scraper 1, and while expanding, the support rod 3 connected thereto is driven to move, and the support rod 3 drives the swing arm 4 to move, and the swing arm 4 rotates around the connection with the support shaft 11, thereby adapting to the deformation of the plastering scraper 1. By moving the sleeve 7 in the opposite direction, the arc radius of the plastering scraper 1 can be reduced;

[0039] When plastering a flat surface, the sleeve 7 is moved toward the plastering scraper 1 until the plastering scraper 1 is in a flat state without being bent, so that the flat wall can be plastered. The screw rod 12 and the sleeve 7 are further moved toward the plastering scraper 1 to bend the plastering scraper 1 toward the rear, so that the inner corner of the wall can be plastered, and the wall with different inner corner curvatures can also be adapted.

[0040] In the process of sleeve 7 moving toward plastering scraper 1, when sleeve 7 moves to the maximum stroke, sleeve 7 will no longer perform linear motion, but rotate together with threaded block 10, and at the same time drive screw rod 12 to extend from the inside of sleeve 7 through the action of thread, thereby pushing plastering scraper 1 to bend to different degrees.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastering tool with adjustable curvature, comprising a plastering scraper (1), characterized in that: The front part of the plastering scraper (1) is provided with an adjustment mechanism (2), the adjustment mechanism (2) comprising two support rods (3), the top and bottom of the rear end of the support rod (3) are rotatably connected to the top and bottom of the rear side of the plastering scraper (1), the front part of the support rod (3) is fixedly connected to a rotary arm (4), the front part of the plastering scraper (1) is fixedly connected to a connecting rod (8) near the center, the rear part of the connecting rod (8) is fixedly connected to a screw rod (12), the outer side of the screw rod (12) is meshed with the screw rod (12) and the screw rod (12) is meshed with the screw rod (12) at the rear end. The sleeve (7) is connected to the sleeve (7), the rear end of the outer side of the sleeve (7) is movably connected to a fixed block (5) near the front of the connecting rod (8), the front of the fixed block (5) is fixedly connected to a limit block (9), the front inner side of the limit block (9) is rotatably connected to a threaded block (10) near the front, the inner side of the limit block (9) is movably connected to the outer side of the sleeve (7) near the front of the fixed block (5), and the inner side of the threaded block (10) is meshingly connected to the outer side of the sleeve (7) near the front of the limit block (9).

2. The curvature-adjustable plastering tool according to claim 1, characterized in that: One end of the rotary arm (4) is rotatably connected to a support shaft (11), one side of the support shaft (11) is fixedly connected to one side of a limit block (9), and the bottom of the fixed block (5) is fixedly connected to a handle (6).

3. The curvature-adjustable plastering tool according to claim 2, characterized in that: The handle (6) is tilted forward with the connection with the fixed block (5) as the center, and circular axes are symmetrically provided at the top and bottom of the support shaft (11) near the other end.

4. The curvature-adjustable plastering tool according to claim 1, characterized in that: One end of the rotary arm (4) is provided with a groove, and the top and bottom of the groove are provided with circular holes.

5. The curvature-adjustable plastering tool according to claim 1, characterized in that: The positions near the top and the bottom of both sides of the plastering scraper (1) are curled, and the support rod (3) has a V-shaped appearance.

6. The curvature-adjustable plastering tool according to claim 1, characterized in that: A screw hole is formed at the rear end of the sleeve (7), and a thread is formed on the outer side of the sleeve (7), and a screw hole is formed at the front of the threaded block (10).

7. The curvature-adjustable plastering tool according to claim 1, characterized in that: A clamping ring is provided at the rear of the threaded block (10) near the outer side of the threaded hole, and a through hole is provided at the front of the limit block (9), and an annular groove is provided at the outer side near the through hole.

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