A high-precision wall perpendicularity detection tool

Abstract

The utility model discloses a high accuracy wall perpendicularity detection instrument, including the ruler and the foot of relying on. The foot of relying on adopts the split type design, is composed by fixed cylinder and detachable cylinder. Fixed cylinder one end connects the ruler, and is equipped with cross insertion limiting slot, annular slot and annular magnet in the other end, and has opened the pressure equalizing hole. Detachable cylinder is equipped with corresponding cross insertion pin and insertion ring, and the outer wall covers the chromium oxide wear -resisting coating. Realize quick assembly and disassembly through magnetic attraction and insertion cooperation, and the service life is improved to wear -resisting coating, and the pressure equalizing hole has guaranteed the smooth operation. The tool has solved the problem of high replacement cost after the existing foot of relying on wears, and has the advantages of convenient maintenance, high measuring accuracy.

Description

Technical Field

[0001] This utility model relates to the field of building wall verticality detection technology, specifically a high-precision wall verticality detection tool. Background Technology

[0002] Verticality testing is a crucial step in building construction, decoration, and project acceptance, directly affecting the aesthetics of walls, structural safety, and the accuracy of subsequent installation work. Traditional methods for wall verticality testing often use tools such as straightedges, which rely on the level bubble or electronic sensor on the straightedge to determine whether the wall is vertical by having its feet contact the wall surface.

[0003] In existing technologies, the feet of straightedges are usually fixed structures. After long-term use, the parts in contact with the wall are prone to wear, leading to a decrease in measurement accuracy. Since the feet are mostly of a single piece, once worn, the entire foot or even the entire straightedge often needs to be replaced, resulting in high maintenance costs and wasted resources. In addition, traditional feet are mostly made of ordinary metal or plastic, which have poor wear resistance and are prone to scratches and deformation after frequent use, further affecting the accuracy of measurement results.

[0004] To address this, we propose a high-precision wall verticality detection tool. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a high-precision wall verticality detection tool that improves the wear resistance of the feet, extends its service life, and facilitates the individual replacement of worn parts in contact with the wall, reducing maintenance costs and effectively solving the problems in the background technology.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-precision wall verticality testing tool, including a straightedge, a foot fixedly installed on the side of the straightedge that contacts the wall, the foot including a fixed cylinder and a detachable cylinder, one end of the outer surface of the fixed cylinder being fixedly connected to one side of the outer surface of the straightedge, the detachable cylinder being located at the end of the fixed cylinder away from the straightedge, a cross-shaped insertion limiting groove being formed in the middle of the outer surface of the end of the fixed cylinder away from the straightedge, a pressure equalization hole being formed at the end of one side of the cross-shaped insertion limiting groove, and the pressure equalization hole penetrating to the outer surface of the fixed cylinder, an annular slot being formed in the outer surface of the end of the fixed cylinder away from the straightedge, an annular magnet being fixedly installed at one end of the annular slot, a cross-shaped insertion pin being fixedly installed in the middle of the outer surface of the rear end of the detachable cylinder, an insertion ring being fixedly installed in the outer surface of the rear end of the detachable cylinder, and a wear-resistant coating being provided on the outer wall of the detachable cylinder.

[0007] Preferably, the outer wall of the cross-shaped insertion pin mates with the inner wall of the cross-shaped insertion limiting groove.

[0008] Preferably, the thickness of the wear-resistant coating is 0.2 mm to 0.5 mm.

[0009] Preferably, the outer wall of the insertion ring is inserted into the inner wall of the annular slot, and the insertion ring and the annular magnet are magnetically connected.

[0010] Preferably, the pressure equalization hole is used to balance the air pressure inside the fixed cylinder when inserting and removing the detachable cylinder.

[0011] Preferably, the wear-resistant coating is a chromium oxide coating.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-precision wall verticality detection tool, which has the following beneficial effects: 1. This high-precision wall verticality testing tool improves the wear resistance and scratch resistance of the contact area between the foot and the wall by setting a wear-resistant coating on the outer wall of the detachable cylinder, thus extending the service life of the tool and ensuring measurement accuracy during long-term use.

[0013] 2. This high-precision wall verticality testing tool, through the magnetic attraction between the plug ring and the ring magnet, combined with the cross plug structure, enables the quick installation and disassembly of the detachable cylinder, facilitating the replacement of worn parts and reducing maintenance and time costs.

[0014] 3. This high-precision wall verticality testing tool effectively balances the air pressure inside the fixed cylinder during insertion and removal by setting pressure equalization holes on the fixed cylinder, making the disassembly and installation process smoother and less labor-intensive, and improving the ease of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-precision wall verticality detection tool according to this utility model.

[0016] Figure 2 This is a schematic diagram of the support structure in a high-precision wall verticality detection tool of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the fixed cylinder in a high-precision wall verticality detection tool of this utility model.

[0018] Figure 4 This is a schematic diagram of the detachable cylinder in a high-precision wall verticality testing tool of this utility model.

[0019] In the diagram: 1. Straightedge; 2. Foot; 3. Fixed cylinder; 4. Detachable cylinder; 5. Pressure equalization hole; 6. Cross-shaped insertion limiting groove; 7. Ring slot; 8. Ring magnet; 9. Wear-resistant coating; 10. Insertion ring; 11. Cross-shaped insertion pin. Detailed Implementation

[0020] 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.

[0021] This embodiment is a high-precision wall verticality detection tool.

[0022] like Figure 1-4 As shown, this utility model provides a high-precision wall verticality testing tool, including a ruler 1. The ruler 1 can adopt a conventional structure, such as an aluminum-magnesium alloy ruler body with a level bubble or electronic sensor. At least two feet 2 are fixedly installed on the side of the ruler 1 that contacts the wall. In this embodiment, four feet 2 are preferably provided, located at both ends and the two sides of the middle of the ruler 1, to ensure stability during testing.

[0023] Each foot 2 consists of a fixed cylinder 3 and a detachable cylinder 4. The fixed cylinder 3 is made of stainless steel, and one end is fixedly connected to the side surface of the ruler 1. The end of the fixed cylinder 3 away from the ruler 1 has a precision structure: a cross-shaped insertion and limiting groove 6 is formed in its middle, which is used to cooperate with the cross-shaped insertion pin 11 on the detachable cylinder 4 to provide circumferential limiting and prevent the detachable cylinder 4 from rotating during use. At the end of the cross-shaped insertion and limiting groove 6 (i.e., the bottom of the groove), a small pressure equalization hole 5 is also formed. This hole penetrates the side wall of the fixed cylinder 3 and is used to balance the internal air pressure when inserting or removing the detachable cylinder 4, avoiding the air cushion effect and making installation and removal easier and smoother. In addition, an annular slot 7 is formed on the end face of the fixed cylinder 3. A ring magnet 8 (such as a neodymium iron boron magnet) is embedded and fixed at the bottom of the slot 7 to provide magnetic attraction.

[0024] The detachable cylinder 4, as a wear part that directly contacts the wall, has its outer surface coated with a 0.2mm to 0.5mm thick chromium oxide wear-resistant coating 9 using a thermal spraying process. This improves its surface hardness, wear resistance, and scratch resistance, extending its service life. At the rear end of the detachable cylinder 4 (i.e., the end connected to the fixed cylinder 3), a metal insertion ring 10 that mates with the annular slot 7 is fixedly installed on its outer surface for magnetic fixation. At the center of the rear end face of the detachable cylinder 4, a cross-shaped insertion pin 11 that precisely mates with the cross-shaped insertion limiting groove 6 is fixedly installed.

[0025] During assembly, align the cross-shaped pin 11 of the detachable cylinder 4 with the cross-shaped insertion limiting groove 6 of the fixed cylinder 3, then align the insertion ring 10 with the annular slot 7, and apply a certain pushing force until the insertion ring 10 is attracted to the annular magnet 8. At this time, the cross-shaped insertion structure restricts the rotation of the detachable cylinder 4, the magnetic attraction ensures the firmness of the connection, and the pressure equalization hole 5 ensures the internal air pressure balance.

[0026] When the wear-resistant coating 9 of the removable cylinder 4 wears down after long-term use, it can be easily pulled off the fixed cylinder 3 by simply holding the removable cylinder 4 and applying a certain axial pulling force, and then replacing it with a new removable cylinder 4. The entire replacement process is tool-free, simple and quick, reducing maintenance costs and time, and avoiding the waste caused by replacing the entire straightedge or foot.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-precision wall verticality testing tool, comprising a straightedge (1), characterized in that: The straightedge (1) has a foot (2) fixedly installed on the side that contacts the wall. The foot (2) includes a fixed cylinder (3) and a detachable cylinder (4). One end of the outer surface of the fixed cylinder (3) is fixedly connected to one side of the outer surface of the straightedge (1). The detachable cylinder (4) is located at the end of the fixed cylinder (3) away from the straightedge (1). A cross-shaped insertion limiting groove (6) is provided in the middle of the outer surface of the end of the fixed cylinder (3) away from the straightedge (1). A uniform groove is provided at the end of one side of the cross-shaped insertion limiting groove (6). The pressure hole (5) extends through to the outer surface of the fixed cylinder (3). The outer surface of the fixed cylinder (3) away from the ruler (1) is provided with an annular slot (7). An annular magnet (8) is fixedly installed at one end of the annular slot (7). A cross-shaped pin (11) is fixedly installed in the middle of the outer surface of the rear end of the detachable cylinder (4). A plug ring (10) is fixedly installed on the outer surface of the rear end of the detachable cylinder (4). A wear-resistant coating (9) is provided on the outer wall of the detachable cylinder (4).

2. The high-precision wall verticality detection tool according to claim 1, characterized in that: The outer wall of the cross-shaped pin (11) mates with the inner wall of the cross-shaped pin limiting groove (6).

3. The high-precision wall verticality detection tool according to claim 1, characterized in that: The thickness of the wear-resistant coating (9) is 0.2 mm to 0.5 mm.

4. The high-precision wall verticality detection tool according to claim 1, characterized in that: The outer wall of the insertion ring (10) is inserted into the inner wall of the annular slot (7), and the insertion ring (10) and the annular magnet (8) are magnetically connected.

5. A high-precision wall verticality detection tool according to claim 4, characterized in that: The equalizing hole (5) is used to balance the air pressure inside the fixed cylinder (3) when inserting and removing the detachable cylinder (4).

6. A high-precision wall verticality detection tool according to claim 1 or 3, characterized in that: The wear-resistant coating (9) is a chromium oxide coating.

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