Building wall flatness detection tool

Abstract

The utility model discloses a building wall flatness detection tool which comprises a detection ruler, a movable plate and a movable ring. A T-shaped sliding groove is formed in the back of the detection ruler, T-shaped sliding blocks are integrally formed at the front ends of the movable plates, the T-shaped sliding blocks are installed in the T-shaped sliding groove in a sliding mode, the number of the movable plates is two, the two movable plates are symmetrically and movably installed on the back of the detection ruler through the T-shaped sliding blocks, and grooves are symmetrically formed in the upper end and the lower end of the detection ruler; a through hole is formed in the middle of the detection ruler, the movable ring is rotatably installed in the through hole, a limiting ring is integrally formed on the outer wall of the movable ring, a limiting groove is formed in the inner wall of the through hole, a magnetic attraction block is installed on the inner wall of the limiting groove in an embedded mode, and an iron sheet is correspondingly installed on the outer wall of the limiting ring in an embedded mode. According to the utility model, the length can be freely extended and retracted, so that the measurement accuracy is improved on the premise of ensuring the portability, and the movable ring capable of freely rotating is arranged, so that the adjustment of various angles of the level bubble is facilitated, and the measurement flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a tool for detecting the flatness of building walls. Background Technology

[0002] In the field of construction engineering, the flatness of the wall surface has a crucial impact on the overall quality, aesthetics, and subsequent decoration work of the building. Traditional methods for detecting wall flatness often rely on simple straightedges and manual visual judgment. For example, ordinary rulers or T-squares can only make preliminary flatness measurements on small local areas of the wall. Moreover, for large-area walls or walls with complex shapes, the detection efficiency is extremely low and the accuracy is limited. Manual visual judgment is easily affected by subjective factors and it is difficult to accurately quantify the degree of unevenness of the wall surface.

[0003] However, current building wall flatness testing tools are often limited in length for portability, and when conducting large-area wall inspections, they can only measure small local areas. This results in inaccurate measurements and affects efficiency. Furthermore, when the measuring ruler is placed vertically or horizontally, the bubble level often needs to be switched, which makes traditional testing tools unable to flexibly perform measurements in multiple postures, resulting in poor usability.

[0004] Therefore, how to provide a tool for detecting the flatness of building walls is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a tool for testing the flatness of building walls. This invention allows for free extension and retraction of its length, thereby improving measurement accuracy while ensuring portability. Furthermore, it features a freely rotatable movable ring to facilitate adjustment of the bubble level at various angles, thus enhancing measurement flexibility.

[0006] A building wall flatness testing tool according to an embodiment of the present utility model includes a testing ruler, a movable plate, and a movable ring;

[0007] The back of the measuring ruler is provided with a T-shaped groove, and the front end of the movable plate is integrally formed with a T-shaped slider. The T-shaped slider is slidably installed in the T-shaped groove. There are two sets of movable plates, and the two sets of movable plates are symmetrically installed on the back of the measuring ruler through the T-shaped slider. The upper and lower ends of the measuring ruler are symmetrically provided with grooves.

[0008] The measuring ruler has a through hole in the middle, and the movable ring is rotatably installed in the through hole. The outer wall of the movable ring is integrally formed with a limiting ring, and the inner wall of the through hole has a limiting groove. A magnetic block is embedded in the inner wall of the limiting groove, and an iron sheet is correspondingly embedded in the outer wall of the limiting ring.

[0009] Furthermore, a sleeve is fixedly installed in the groove, and a pin is installed through the sleeve. Slots are symmetrically opened on the upper and lower sides of the T-shaped slider.

[0010] Furthermore, a spring is fitted on the outer wall of the pin and inside the sleeve.

[0011] Furthermore, the limiting ring is movably installed in the limiting groove, and each set of magnetic blocks attracts each set of iron sheets.

[0012] Furthermore, the measuring ruler has elongated handle grooves extending through its upper and lower sides.

[0013] Furthermore, a spirit level is fixedly installed inside the movable ring.

[0014] Furthermore, the number of magnetic blocks and iron sheets is eight sets, and the eight sets of magnetic blocks and iron sheets are respectively distributed at the upper, lower, left, right, upper left 45 degrees, lower left 45 degrees, upper right 45 degrees and lower right 45 degrees angles of the limiting groove and the limiting ring.

[0015] Furthermore, the pin 8 passes through the detection ruler 1 and its end is inserted into the slot 11.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model can extend the overall length of the measuring ruler by freely extending and retracting the movable plate. After the length is extended, the two sets of movable plates can be used to measure against the wall, which can effectively improve the measurement accuracy. Moreover, the expansion and retraction of the movable plate can be limited and fixed by the pin, ensuring the stability during use.

[0018] 2. This utility model allows the angle of the bubble level to be adjusted by the free rotation of the movable ring located inside the perforation, enabling the measuring ruler to be used in various states for measurement, including horizontal, vertical, and tilted positions, thus improving measurement flexibility.

[0019] 3. This utility model can limit the position of the movable ring in the through hole by attracting the magnetic block with the iron sheet, ensuring that it can remain stable after rotating to the appropriate angle, and there is no need for a cumbersome locking mechanism to lock it, making it more convenient and efficient to use. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a building wall flatness detection tool proposed in this utility model;

[0022] Figure 2This is a schematic diagram of the unfolded structure of a building wall flatness detection tool proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the sleeve structure of a building wall flatness detection tool proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the disassembly structure of the movable ring of a building wall flatness testing tool proposed in this utility model.

[0025] In the diagram: 1. Measuring ruler; 2. Movable plate; 3. Movable ring; 4. Spirit bubble; 5. Long handle groove; 6. Groove; 7. Sleeve; 8. Pin; 9. T-shaped slide; 10. T-shaped slider; 11. Slot; 12. Spring; 13. Perforation; 14. Limiting groove; 15. Magnetic block; 16. Limiting ring; 17. Iron sheet. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] refer to Figure 1-3 A tool for testing the flatness of building walls, comprising a testing ruler 1, a movable plate 2, and a movable ring 3;

[0028] The back of the measuring ruler 1 is provided with a T-shaped groove 9, and the front end of the movable plate 2 is integrally formed with a T-shaped slider 10. The T-shaped slider 10 is slidably installed in the T-shaped groove 9. There are two sets of movable plates 2, and the two sets of movable plates 2 are symmetrically installed on the back of the measuring ruler 1 through the T-shaped slider 10. The upper and lower ends of the measuring ruler 1 are symmetrically provided with grooves 6.

[0029] A sleeve 7 is fixedly installed in the groove 6, and a pin 8 is installed through the sleeve 7. The T-shaped slider 10 has slots 11 symmetrically opened on the upper and lower sides.

[0030] Secondly, a spring 12 is fitted on the outer wall of the pin 8 and inside the sleeve 7; after the pin 8 passes through the measuring ruler 1, its end is inserted into the slot 11.

[0031] In addition, the measuring ruler 1 has elongated handle grooves 5 extending through its upper and lower sides;

[0032] In this embodiment, when the position of the movable plate 2 needs to be adjusted, the pin 8 is pulled outward to overcome the elastic force of the spring 12, so that the end of the pin 8 is dislodged from the slot 11 of the T-shaped slider 10. At this time, the movable plate 2 can be slid along the T-shaped slide 9 to unfold. Then, the pin 8 is released, and under the action of the spring 12, the pin 8 is reset and re-inserted into another set of slots 11, thereby fixing the position of the movable plate 2. At this time, the overall length of the measuring ruler 1 can be extended, thereby improving the measurement accuracy. The long strip handle groove 5 makes it convenient for the user to hold the measuring ruler 1 for operation.

[0033] refer to Figure 1-4 The detection ruler 1 has a through hole 13 in the middle, the movable ring 3 is rotatably installed in the through hole 13, the outer wall of the movable ring 3 is integrally formed with a limiting ring 16, the inner wall of the through hole 13 has a limiting groove 14, a magnetic block 15 is embedded in the inner wall of the limiting groove 14, and an iron piece 17 is correspondingly embedded in the outer wall of the limiting ring 16.

[0034] The limiting ring 16 is movably installed in the limiting groove 14, and each set of magnetic blocks 15 is attracted to each set of iron sheets 17.

[0035] Secondly, a spirit level 4 is fixedly installed inside the movable ring 3;

[0036] In addition, there are eight sets of magnetic blocks 15 and iron pieces 17, and the eight sets of magnetic blocks 15 and iron pieces 17 are respectively distributed at the upper, lower, left, right, upper left 45 degrees, lower left 45 degrees, upper right 45 degrees and lower right 45 degrees angles of the limiting groove 14 and the limiting ring 16.

[0037] In this embodiment, the movable ring 3 can rotate flexibly within the perforation 13. The level 4 within the movable ring 3 is used to determine whether the measuring ruler 1 is in a horizontal state. The level 4 can be adjusted in any direction, specifically vertical, horizontal, or tilted at a 45-degree angle to the left. When the movable ring 3 rotates to a suitable angle, the position of the limiting ring 16 within the limiting groove 14 is relatively fixed. Furthermore, due to the mutual attraction between the magnetic block 15 and the iron sheet 17, the movable ring 3 will not rotate arbitrarily, ensuring the stability of the horizontal state during detection. The multi-angle distribution of the eight sets of magnetic blocks 15 and iron sheets 17 enables effective limiting and fixing in all directions.

[0038] Working Principle: When using this wall flatness testing tool, the user first holds the measuring ruler 1 stably with the long handle grooves 5 on both sides of the measuring ruler 1, bringing it close to and initially placing it on the wall to be tested. Pulling the pin 8 outward stretches the spring 12, causing the end of the pin 8 to disengage from the slot 11 of the T-shaped slider 10, releasing the locking restriction on the movable plate 2. Then, the movable plate 2 is precisely slid along the T-shaped groove 9, extending or retracting to the ideal position where it contacts or aligns with the edge, protrusion, or specific key testing points of the wall. After the movable plate 2 is positioned, the pin 8 is released. The spring 12 recovers its deformation, causing the pin 8 to return to its original position and re-insert into the corresponding slot 11, thus firmly fixing the movable plate 2 in its current position. This ensures that the contact range and testing layout of the measuring ruler 1 with the wall meet the actual requirements. Next, the movable ring 3 can rotate freely and flexibly within the through hole 13 in the middle of the measuring ruler 1. The spirit level 4 fixed inside is crucial for determining the levelness of the measuring ruler 1. The user determines whether the measuring ruler 1 is accurately level by carefully observing the position of the bubble in the level bubble 4. When the measuring ruler 1 is not level, there is no need to rotate the movable ring 3. When the measuring ruler 1 is being tested vertically, the movable ring 3 can be rotated to 90 degrees to perform the test. When it is necessary to test the flatness of the inclined surface, the movable ring 3 can be rotated 45 degrees to the left or right. Since the limiting ring 16 on the outer wall of the movable ring 3 is movably installed in the limiting groove 14 on the inner wall of the perforation 13, and eight sets are distributed in the limiting groove 14 respectively. The magnetic blocks 15 and the iron sheet 17 at the upper, lower, left, right, upper left 45 degrees, lower left 45 degrees, upper right 45 degrees and lower right 45 degrees angle of the limiting ring 16 attract each other. During the rotation, the limiting ring 16 slides smoothly along the limiting groove 14, and the magnetic blocks 15 and the iron sheet 17 are tightly attracted to each other, forming a strong fixing force. This effectively prevents the movable ring 3 from rotating due to slight external interference, thus stably maintaining the horizontal placement of the detection ruler 1. Then, by observing the level bubble 4, it can be determined whether the wall surface is flat.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for detecting the flatness of building walls, characterized in that, It includes a measuring ruler (1), a movable plate (2), and a movable ring (3); The back of the measuring ruler (1) is provided with a T-shaped groove (9), and the front end of the movable plate (2) is integrally formed with a T-shaped slider (10). The T-shaped slider (10) is slidably installed in the T-shaped groove (9). There are two sets of movable plates (2), and the two sets of movable plates (2) are symmetrically installed on the back of the measuring ruler (1) through the T-shaped slider (10). The measuring ruler (1) is provided with grooves (6) symmetrically at both the upper and lower ends. The detection ruler (1) has a through hole (13) in the middle. The movable ring (3) is rotatably installed in the through hole (13). The outer wall of the movable ring (3) is integrally formed with a limiting ring (16). The inner wall of the through hole (13) has a limiting groove (14). A magnetic block (15) is embedded in the inner wall of the limiting groove (14). A corresponding iron piece (17) is embedded in the outer wall of the limiting ring (16).

2. The building wall flatness testing tool according to claim 1, characterized in that, A sleeve (7) is fixedly installed in the groove (6), and a pin (8) is installed through the sleeve (7). The T-shaped slider (10) has slots (11) symmetrically opened on the upper and lower sides.

3. The building wall flatness testing tool according to claim 2, characterized in that, A spring (12) is fitted on the outer wall of the pin (8) and inside the sleeve (7).

4. The building wall flatness testing tool according to claim 1, characterized in that, The limiting ring (16) is movably installed in the limiting groove (14), and each set of magnetic blocks (15) attracts each set of iron sheets (17).

5. A building wall flatness testing tool according to claim 1, characterized in that, The measuring ruler (1) has long strip-shaped handle grooves (5) running through its upper and lower sides.

6. The building wall flatness testing tool according to claim 1, characterized in that, A spirit level (4) is fixedly installed inside the movable ring (3).

7. The building wall flatness testing tool according to claim 1, characterized in that, The number of magnetic blocks (15) and iron pieces (17) are eight sets, and the eight sets of magnetic blocks (15) and iron pieces (17) are respectively distributed at the upper, lower, left, right, upper left 45 degrees, lower left 45 degrees, upper right 45 degrees and lower right 45 degrees angles of the limiting groove (14) and the limiting ring (16).

8. A building wall flatness testing tool according to claim 2, characterized in that, The pin (8) passes through the measuring ruler (1) and its end is inserted into the slot (11).

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