Putty scraper adaptive to wall corner

Abstract

The utility model provides a putty scraper adapted to a wall corner, which relates to the technical field of building decoration instruments and comprises a body, a handle is arranged on the back of the body, a right-angle knife rest is arranged at the top end of the body, and scraper blades are detachably mounted on two right-angle side edges of the right-angle knife rest. At least one positioning guide wheel is rotationally arranged on the body in the length direction of the body, and the positioning guide wheel is a wheel with a V-shaped guide groove in the circumferential direction. When the putty scraper matched with the wall corner is used, the two positioning guide wheels abut against the wall corner, the two positioning guide wheels vertically move on the wall corner, it can be guaranteed that the scraper blade vertically moves vertically and stably, and manual force holding is not needed; the putty scraping operation on the two faces of the wall corner can be completed only by adjusting the contact depth of the scraper blade and the wall face, the flatness is guaranteed, and the operation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of building decoration equipment technology, specifically a putty scraper adapted to wall corners. Background Technology

[0002] The outward protrusion of a wall is called an external corner. When renovating a house, in order to prevent large pieces of putty from falling off due to impact, it is necessary to increase the strength of the corner. Therefore, a metal corner plate is first placed on the wall before applying putty. In order to increase the connection strength between the corner plate and the putty, dense holes need to be drilled in the corner plate, and then the putty is hung on the corner plate. However, due to the existence of holes, the putty may sink or seep out and bulge. Therefore, it is necessary to use a scraper to smooth the putty when it is almost dry.

[0003] Most existing putty scrapers are straight-lined, such as the new type of putty scraper with Chinese patent publication number CN 218406312 U. Such scrapers have the following disadvantages when used: they rely on the worker's control of the force when applying putty, it is difficult to ensure the flatness of the vertical putty, and they need to be scraped repeatedly, which is inefficient. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a putty scraper adapted for wall corners, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a putty scraper adapted to wall corners, comprising a body, a handle provided on the back of the body, a right-angle blade holder provided at the top of the body, scraper blades detachably mounted on the two right-angle sides of the right-angle blade holder, and at least one positioning guide wheel rotatably provided on the body along its length direction, the positioning guide wheel being a wheel with a V-shaped guide groove in the circumferential direction.

[0008] Preferably, there are two positioning guide wheels, which are distributed on the upper and lower sides of the main body.

[0009] Preferably, the deepest point of the V-shaped angle between the two scraper blades protrudes a certain distance from the deepest point of the V-shaped guide groove of the positioning guide wheel.

[0010] Preferably, the right-angle blade holder has mounting grooves for mounting scraper blades on its two right-angle sides, the mounting grooves have at least two fixing holes, the scraper blades have corresponding mounting holes, and the mounting holes of the scraper blades are connected to the fixing holes by bolts.

[0011] Preferably, the mounting hole is a U-shaped mounting hole, and the top of the U-shaped mounting hole is open.

[0012] Preferably, a V-shaped groove is provided on the inner side of the body along its length, and the deepest part of the V-shaped groove is lower than the deepest part of the V-shaped guide groove of the positioning guide wheel.

[0013] (III) Beneficial Effects

[0014] This utility model provides a putty scraper adapted for wall corners. It has the following beneficial effects:

[0015] 1. This corner putty scraper has two positioning guide wheels that rest against the corner of the wall. By using these two guide wheels to move vertically at the corner, the vertical movement of the scraper blade is guaranteed to be vertical and stable. There is no need to rely on manual control of the force. Simply adjust the contact depth between the scraper blade and the wall surface to complete the putty smoothing work on both sides of the corner. Not only is the flatness guaranteed, but the operation efficiency is also high.

[0016] 2. This corner putty scraper features a U-shaped mounting hole, allowing for adjustable putty application depth. The extension length of the scraper blade can be adjusted to suit the unevenness of the putty. Furthermore, by setting the width of the U-shaped mounting hole slightly larger than the bolt diameter, the angle of the scraper blade can be fine-tuned, better accommodating corners with angles slightly greater than 90° or slightly less than 90°. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front side of the main body of this utility model;

[0018] Figure 2 This is an axonometric view of the back side of the main body of this utility model;

[0019] Figure 3 This is a disassembly diagram of the right-angle blade holder and scraper blade of this utility model.

[0020] In the diagram: 1. Body, 2. Right-angle blade holder, 3. Scraper blade, 4. Handle, 5. V-groove, 6. Positioning guide wheel, 7. Mounting groove, 8. Fixing hole, 9. Bolt, 10. U-shaped mounting hole. Detailed Implementation

[0021] This utility model embodiment provides a putty scraper adapted for wall corners, such as... Figure 1-3 As shown, the device includes a main body 1, with a handle 4 on the back of the main body 1. The handle 4 is trapezoidal bridge-shaped. A right-angle blade holder 2 is provided at the top of the main body 1, and scraper blades 3 are detachably mounted on the two right-angled sides of the right-angle blade holder 2.

[0022] like Figure 3As shown, the right-angle knife holder 2 has mounting slots 7 for mounting scraper blades 3 on its two right-angle sides. The corresponding side of the two mounting slots 7 is open. At least two fixing holes 8 are provided on the mounting slots 7. The scraper blades 3 have corresponding mounting holes. The mounting holes of the scraper blades 3 are connected to the fixing holes 8 by bolts 9.

[0023] The mounting hole is a U-shaped mounting hole 10, with the top of the U-shaped mounting hole 10 open. By setting the mounting hole as a U-shaped mounting hole 10, the depth of putty application by the scraper blade 3 can be adjusted. The extension length of the scraper blade 3 can be adjusted according to the actual unevenness of the putty. By setting the width of the U-shaped mounting hole 10 to be slightly larger than the diameter of the bolt 9, the angle of the scraper blade 3 can be finely adjusted, which can better accommodate some wall corners with angles slightly greater than 90° or slightly less than 90°.

[0024] At least one positioning guide wheel 6 is rotatably mounted on the main body 1 along its length. The positioning guide wheel 6 is a wheel with a V-shaped guide groove in a circumferential direction. There are two positioning guide wheels 6, distributed on the upper and lower sides of the main body 1. In use, the two positioning guide wheels 6 are pressed against the corner of the wall, and the vertical movement of the two positioning guide wheels 6 on the corner of the wall ensures the verticality and stability of the vertical movement of the scraper blade 3. There is no need to rely on manual force control. Only by adjusting the contact depth between the scraper blade 3 and the wall surface, the putty smoothing work on both sides of the corner can be completed. Not only is the flatness guaranteed, but the operation efficiency is also high.

[0025] A V-groove 5 is provided on the inner side of the main body 1 along its length. The deepest part of the V-groove 5 is lower than the deepest part of the V-groove of the positioning guide wheel 6. This prevents the V-groove 5 from contacting the corner of the wall.

[0026] The deepest point of the V-shaped angle between the two scraper blades 3 protrudes a certain distance from the deepest point of the V-shaped guide groove of the positioning guide wheel 6. When the positioning guide wheel 6 is against the corner of the wall, the scraper blades 3 can perform puttying operations on the wall surface.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A putty knife adapted for cornering, characterized in that: Includes a body (1), a handle (4) is provided on the back of the body (1), a right-angle blade holder (2) is provided on the top of the body (1), scraper blades (3) are detachably installed on the two right-angle sides of the right-angle blade holder (2), and at least one positioning guide wheel (6) is rotatably provided on the body (1) along its length direction, the positioning guide wheel (6) is a wheel with a V-shaped guide groove in the circumferential direction.

2. A putty knife for adapting to a corner according to claim 1, characterized in that: There are two positioning guide wheels (6), which are distributed on the upper and lower sides of the body (1).

3. A putty knife for adapting to a corner according to claim 2, characterized in that: The deepest part of the V-shaped angle between the two scraper blades (3) protrudes a certain distance from the deepest part of the V-shaped guide groove of the positioning guide wheel (6).

4. A putty knife for adapting to a corner according to claim 1, wherein: The right-angle knife holder (2) has mounting grooves (7) for mounting scraper blades (3) on its two right-angle sides. The mounting grooves (7) have at least two fixing holes (8). The scraper blades (3) have corresponding mounting holes. The mounting holes of the scraper blades (3) are connected to the fixing holes (8) by bolts (9).

5. A putty knife for adapting to a corner according to claim 4, wherein: The mounting hole is a U-shaped mounting hole (10), and the top of the U-shaped mounting hole (10) is open.

6. A putty knife for adapting to a corner according to claim 1, wherein: The inner side of the body (1) is provided with a V-shaped groove (5) along its length direction, and the deepest part of the V-shaped groove (5) is lower than the deepest part of the V-shaped guide groove of the positioning guide wheel (6).

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