A tool for protecting the corners of a wall during the application of a corner finish

Abstract

The application provides a corner tool for external corner plastering, which comprises a corner column, a butt joint groove is formed in the upper end surface of the corner column, an alloy plate is fixedly connected to one side of the corner column through a stud, a spring, a rubber washer and a knob are arranged on the side end surface of the stud, the spring and the rubber washer are arranged on the side adjacent to the corner column of the alloy plate, the knob is arranged on the side of the stud away from the corner column, a fixing piece is arranged on the rear side of the side of the alloy plate away from the corner column, a fixing bolt is fixedly connected to the side end surface of the fixing piece, an adjusting rod is installed on the front end surface of the corner column, the adjusting rod comprises a threaded rod and two adjusting sleeves, the two adjusting sleeves are fixedly connected to the two ends of the threaded rod, one end of the adjusting sleeve away from the threaded rod is rotatably connected with a connecting piece, and the side of the connecting piece away from the adjusting sleeve is elastically connected with a fixing piece through an elastic connecting piece.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a corner plastering and corner protection tool for external corners. Background Technology

[0002] With the rapid development of the civil construction industry, quality requirements are becoming increasingly stringent. Most houses are handed over as bare shells, and plastering, as the final step in this process, directly determines whether the handover can proceed smoothly. According to the "Technical Specification for Plastering Mortar" JGJT220-2010, reinforcement measures must be taken when the plaster layer exceeds 35mm. This reinforcement typically involves laying a layer of mesh fabric on the surface.

[0003] In plastering projects, external corners are generally more prone to cracking. If the mesh fabric is wrapped around the corner during application, cracking can be effectively prevented. However, because the mesh fabric is not flexible enough, leaving a stub beyond the corner can hinder plastering work. Therefore, workers typically cut the mesh fabric flush with the corner, resulting in a gap instead of overlap, thus increasing the risk of cracking. Therefore, developing a tool that can ensure the mesh fabric completely covers the corner without interfering with the plastering process is essential. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a corner plastering and corner protection tool for external corners to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a corner protector tool for external corner plastering, comprising a corner protector post, wherein the upper end face of the corner protector post has a tongue and groove joint, and an alloy plate is fixedly connected to one side of the corner protector post by a stud. A spring, a rubber washer, and a screw are provided on the side end face of the stud. The spring and rubber washer are located on the side of the alloy plate adjacent to the corner protector post, and the screw is located on the side of the stud away from the corner protector post. A first fixing member is provided at the rear of the alloy plate away from the corner protector post, and a fixing bolt is fixedly connected to the side end face of the first fixing member. An adjusting rod is installed on the front end face of the corner protector post, and the adjusting rod comprises a threaded rod and an adjusting sleeve. Two sets of adjusting sleeves are fixedly connected to both ends of the threaded rod, and one set of adjusting sleeves is rotatably connected to a connecting member at the end away from the threaded rod. The connecting member is elastically connected to a second fixing member at the side away from the adjusting sleeve via an elastic connecting member, and the other set of adjusting sleeves is rotatably connected to a rotating connecting member at the end away from the threaded rod.

[0008] As a further preferred embodiment, the lower end face of the corner post is provided with a mating post that matches the size of the tongue and groove joint.

[0009] As a further preferred embodiment, the front end face of the corner guard post is provided with a mounting groove, and the second fastener is fixedly connected inside the mounting groove.

[0010] As a further preferred embodiment, the upper end face of the connector is provided with a rotating connecting groove, the rotating connecting groove is exposed from the front end face of the connector, the adjusting sleeve is rotatably connected inside the rotating connecting groove, a portion of the connector is slidably connected inside the mounting groove, and the area of ​​the connector with the rotating connecting groove is outside the rotating connecting groove.

[0011] As a further preferred embodiment, both sets of adjusting sleeves are provided with threads that are adapted to the size and position of the threaded rod, and the threads inside the two sets of adjusting sleeves are in opposite directions.

[0012] As a further preferred embodiment, the fixing bolt passes through the side end face of the first fixing member, and the first fixing member is fixedly connected to the alloy plate by the fixing bolt.

[0013] As a further preferred embodiment, the stud penetrates the side end face of the alloy plate, the spring is disposed on the side adjacent to the corner post and the rubber washer, the rubber washer is in contact with the side end face of the alloy plate, and the screw is in contact with the side of the alloy plate away from the rubber washer.

[0014] As a further preferred embodiment, the rotating connector includes a first support plate, a fixing plate, and a second support plate. The first support plate and the second support plate are fixedly connected by one side, and the included angle between the first support plate and the second support plate is 90°. The fixing plate is arranged in two sets at intervals within the 90° angle between the first support plate and the second support plate. The side end faces of the first support plate and the second support plate are provided with through holes.

[0015] As a further preferred embodiment, the adjusting sleeve fixedly connected to one end of the threaded rod away from the connecting piece is rotatably connected to the adjacent side of the two sets of fixed plates.

[0016] (III) Beneficial Effects

[0017] This invention provides a corner plastering and corner protection tool for external corners, which has the following beneficial effects:

[0018] 1. The use of a level bubble can fully ensure the verticality of the corner guard post, so the corner guard post itself can act as a wall reinforcement, controlling the plaster thickness and verticality;

[0019] 2. This device can fix and tighten the mesh cloth, which can effectively avoid the impact of the leftover mesh cloth on the plastering operation;

[0020] 3. This device is simple, practical, and reusable. It can be extended at will according to the height of the wall and is applicable to most plastered walls. Its practicality and economy can meet the construction needs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external corner plastering and corner protection tool of the present invention during use;

[0022] Figure 2 This is a top view schematic diagram of the adjustment rod removal structure of the corner plastering and corner protection tool of the present invention;

[0023] Figure 3 This is a schematic diagram of the adjusting rod structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the adjusting rod structure according to another embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the rotating connector structure of the present invention.

[0026] In the diagram: 1 Corner guard post, 2 Tongue and groove joint, 3 Alloy plate, 4 Stud, 5 Adjusting rod, 6 Spring, 7 Rubber washer, 8 First fixing part, 9 Fixing bolt, 10 Button, 11 Threaded rod, 12 Adjusting sleeve, 13 Connector, 14 Second fixing part, 15 Rotating connector, 16 First support plate, 17 Fixing piece, 18 Second support plate. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] This invention provides a corner protector tool for external corner plastering, including a corner protector post 1. The upper surface of the corner protector post 1 has a tongue-and-groove joint 2. An alloy plate 3 is fixedly connected to one side of the corner protector post 1 via a stud 4. A spring 6, a rubber washer 7, and a screw 10 are provided on the side of the stud 4 adjacent to the corner protector post 1. The screw 10 is on the side of the stud 4 away from the corner protector post 1. A first fixing member 8 is provided at the rear of the alloy plate 3 on the side away from the corner protector post 1. The side surface of the first fixing member 8 is fixed... The fixed connection is provided with a fixing bolt 9. An adjusting rod 5 is installed on the front end face of the corner post 1. The adjusting rod 5 includes a threaded rod 11 and an adjusting sleeve 12. There are two sets of adjusting sleeves 12, which are fixedly connected to both ends of the threaded rod 11. One set of adjusting sleeves 12 is rotatably connected to a connector 13 at the end away from the threaded rod 11. The side of the connector 13 away from the adjusting sleeve 12 is elastically connected to a second fixing member 14 through an elastic connector. The other set of adjusting sleeves 12 is rotatably connected to a rotating connector 15 at the end away from the threaded rod 11.

[0033] In this embodiment, the lower end face of the corner guard post 1 is provided with a docking post that is adapted to the size of the docking tongue and groove 2, so that multiple sets of devices can be connected to each other through the docking tongue and groove 2 and the docking post, thereby adapting to different wall heights. The corner guard post 1 is preferably made of wood, and a level bubble is also provided on the front end face of the corner guard post 1.

[0034] like Figure 1 As shown, when using the device, the stubble of the mesh cloth extending beyond the external corner is folded along the wall to the wall B side during plastering of wall A.

[0035] In this embodiment, the front end face of the corner guard post 1 is provided with an installation groove, and the second fastener 14 is fixedly connected inside the installation groove.

[0036] Specifically, the upper end face of the connector 13 is provided with a rotating connecting groove, which protrudes from the front end face of the connector 13. The adjusting sleeve 12 is rotatably connected inside the rotating connecting groove. A portion of the connector 13 is slidably connected inside the mounting groove, and the area of ​​the connector 13 with the rotating connecting groove is outside the rotating connecting groove, so that the adjusting rod 5 is installed inside the mounting groove through the connector 13 and the second fixing member 14. The connector 13 and the second fixing member 14 are elastically connected through an elastic connector, which has a torsional function.

[0037] Both sets of adjusting sleeves 12 are provided with threads that match the size and position of the threaded rod 11. The threads inside the two sets of adjusting sleeves 12 are in opposite directions. This causes the distance between the two sets of adjusting sleeves 12 to increase or decrease when the threaded rod 11 is rotated, thereby completing the length adjustment of the adjusting rod 5. The device is fixed by having the end of the adjusting rod 5 away from the corner post 1 abut against the opposite wall.

[0038] like Figure 4 As shown, in another embodiment, the connector 13 is pulled out of the mounting slot and rotated 180° so that the side of the connector 13 with the rotating connecting slot faces downward. The threaded rod 11 is rotated to adjust the distance between the two sets of adjusting sleeves 12 so that the rotating connector 15 contacts the ground. The rotating connector 15 is then rotated so that one side of the first support plate 16 contacts the ground. The bolts are used to pass through the through hole on the first support plate 16 and fix it to the ground, so that the other end of the adjusting rod 5 is fixed to the ground, thus completing the support of the device.

[0039] In this embodiment, the fixing bolt 9 passes through the side end face of the first fixing member 8, and the first fixing member 8 is fixedly connected to the alloy plate 3 through the fixing bolt 9. When the fixing bolt 9 is used, the contact surface between the first fixing member 8 and the alloy plate 3 forms a clamp, and the end of the mesh cloth is clamped by the clamp formed by the first fixing member 8 and the alloy plate 3.

[0040] Specifically, the stud 4 penetrates the side end face of the alloy plate 3, the spring 6 is set on the side adjacent to the corner post 1 and the rubber washer 7, the rubber washer 7 is in contact with the side end face of the alloy plate 3, and the screw 10 is in contact with the side of the alloy plate 3 away from the rubber washer 7. By adjusting the screw 10, the thrust of the spring 6 can be used to make the alloy plate 3 move towards the side away from the corner post 1, thereby tightening the mesh cloth.

[0041] In this embodiment, the rotating connector 15 includes a first support plate 16, a fixing piece 17, and a second support plate 18. The first support plate 16 and the second support plate 18 are fixedly connected by one side, and the included angle between the first support plate 16 and the second support plate 18 is 90°. The fixing pieces 17 are arranged in two sets at intervals within the 90° angle between the first support plate 16 and the second support plate 18. The side end faces of the first support plate 16 and the second support plate 18 are provided with through holes, which facilitate the fixing of the adjusting rod 5 to the wall or the ground.

[0042] Specifically, the adjusting sleeve 12, which is fixedly connected to one end of the threaded rod 11 away from the connecting piece 13, is rotatably connected to the adjacent side of the two sets of fixing plates 17.

[0043] Working principle: When using this invention, when plastering wall surface A, the stubble of the mesh cloth extending beyond the corner is folded along the wall surface to wall surface B. The end of the mesh cloth is clamped by the clamp formed by the first fixing member 8 and the alloy plate 3, and then fixed by the fixing bolt 9. The corner guard post 1 is adjusted so that its side is flush with the plastered surface of wall surface A. The adjusting screw 10 uses the pushing force of the spring 6 to move the alloy plate 3 away from the corner, thereby tightening the mesh cloth. The length of the adjusting rod 5 is adjusted so that the adjusting rod 5 is pushed against the opposite wall or the ground, so that the corner guard post 1 is tightened.

[0044] In summary, the corner protection tool for external corner plastering provided by the present invention can fully ensure the verticality of the corner protection post (1) by using a level bubble. Therefore, the corner protection post (1) itself can serve as a wall reinforcement to control the plastering thickness and verticality. The device can fix and tighten the mesh cloth, which can effectively avoid the impact of the left mesh cloth on the plastering operation. The device is simple, practical, and reusable. It can be extended at will according to the height of the wall and is applicable to most plastered walls. Its practicality and economy can meet the construction needs.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corner beading tool for external corners, comprising a beading post (1), characterised in that: The butt joint tongue and groove (2) is arranged on the upper end surface of the corner protection column (1), the alloy plate (3) is fixedly connected to one side of the corner protection column (1) through the stud (4), the spring (6), the rubber gasket (7) and the knob (10) are arranged on the side end surface of the stud (4), the spring (6) and the rubber gasket (7) are arranged on the side, adjacent to the corner protection column (1), of the alloy plate (3), the knob (10) is arranged on the side, away from the corner protection column (1), of the stud (4), the first fixing part (8) is arranged on the rear side, away from the corner protection column (1), of the alloy plate (3), the fixed bolt (9) is fixedly connected to the side end surface of the first fixing part (8), the adjusting rod (5) is arranged on the front end surface of the corner protection column (1), the adjusting rod (5) comprises the threaded rod (11) and the adjusting sleeve (12), the two groups of adjusting sleeves (12) are fixedly connected to the two ends of the threaded rod (11), one group of adjusting sleeves (12) is rotatably connected to the connecting part (13) on the side, away from the threaded rod (11), of the adjusting sleeve (12), the second fixing part (14) is elastically connected to the side, away from the adjusting sleeve (12), of the connecting part (13) through the elastic connecting part, and the other group of adjusting sleeves (12) is rotatably connected to the rotating connecting part (15) on the side, away from the threaded rod (11), of the adjusting sleeve (12).

2. A corner bead trowel according to claim 1, wherein: The butt joint column is arranged on the lower end surface of the corner protection column (1) and is matched in size with the butt joint tongue and groove (2).

3. A corner bead trowel according to claim 1, wherein: The second fixing part (14) is fixedly connected in the mounting groove on the front end surface of the corner protection column (1).

4. A corner finishing tool for external corners according to claim 3, wherein: The rotating connecting groove is arranged on the upper end surface of the connecting part (13) and is exposed from the front end surface of the connecting part (13), the adjusting sleeve (12) is rotatably connected in the rotating connecting groove, the connecting part (13) is slidably connected in the mounting groove, and the area, in which the rotating connecting groove is arranged on the connecting part (13), is outside the rotating connecting groove.

5. A corner finishing tool for external corners according to claim 4 wherein: The two groups of adjusting sleeves (12) are internally provided with the threads matched in size and position with the threaded rod (11), and the directions of the threads in the two groups of adjusting sleeves (12) are opposite.

6. A corner finishing tool for external corners according to claim 1, wherein: The fixed bolt (9) penetrates through the side end surface of the first fixing part (8), and the first fixing part (8) is fixedly connected with the alloy plate (3) through the fixed bolt (9).

7. A corner finishing tool for external corners according to claim 1, wherein: The stud (4) penetrates through the side end surface of the alloy plate (3), the spring (6) is arranged on the side, adjacent to the rubber gasket (7), of the corner protection column (1), the rubber gasket (7) is in contact with the side end surface of the alloy plate (3), and the knob (10) is in contact with the side, away from the rubber gasket (7), of the alloy plate (3).

8. A corner finishing tool for external corners according to claim 1, wherein: The rotating connecting part (15) comprises the first supporting plate (16), the fixed sheet (17) and the second supporting plate (18), the first supporting plate (16) and the second supporting plate (18) are fixedly connected through one side, the included angle between the first supporting plate (16) and the second supporting plate (18) is 90°, the fixed sheet (17) is arranged in the 90° angle between the first supporting plate (16) and the second supporting plate (18) in two groups, and the side end surfaces of the first supporting plate (16) and the second supporting plate (18) are provided with the through holes.

9. A corner finishing tool for external corners according to claim 8 wherein: The threaded rod (11) is fixedly connected with an adjusting sleeve (12) at one end away from the connecting piece (13), and the adjusting sleeve (12) is rotationally connected to one side of the two groups of fixing plates (17).

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