Wall surface flatness detection device

Abstract

A wall flatness detection device comprises a measuring scale, one side of the measuring scale is provided with a detection bench, the detection bench is provided with a positioning block slidably arranged along the length direction of the detection bench and a magnetic induction drawing board distributed along the sliding path of the positioning block, the positioning block is slidably provided with a measuring rod facing the wall in a penetrating manner, and the measuring rod is sleeved with a spring. The magnetic pen capable of moving along with the measuring rod is arranged on the measuring rod, the magnetic induction drawing board distributed along the moving path of the measuring rod is arranged on the detection table, the magnetic pen is located above the magnetic induction drawing board, and when the magnetic pen moves synchronously along with the measuring rod, the magnetic induction drawing board is located above the magnetic induction drawing board. The magnetic induction drawing board displays a line which is the same as the moving path of the magnetic pen due to the magnetic influence of the magnetic pen, the moving track of the measuring rod in measurement can be displayed through the line, concave-convex data of the detected wall surface is obtained according to the moving track, and workers do not need to record the detection data.

Description

Technical Field

[0001] This utility model relates to the field of building engineering inspection technology, specifically to a wall surface flatness testing device. Background Technology

[0002] Wall flatness inspection is a common acceptance test item in construction projects. Typically, inspectors place a measuring ruler against the wall and observe the gap between the ruler and the wall surface to determine if the wall flatness is acceptable. To check the size of the gap, a wedge-shaped feeler gauge is inserted into the gap for measurement. This process requires two steps. To simplify the inspection process, existing technology includes Chinese patent CN213396913U, which discloses a wall flatness testing device. This device includes a measuring block with a flat side against the wall, a slider that slides along the measuring block, and a measuring rod that slides along the slider and abuts against the wall. A pointer is fixedly connected to the peripheral wall of the measuring rod away from the wall surface, and the slider has a scale for the pointer to point to.

[0003] This detection device uses a sliding slider to bring the measuring rod into contact with the wall. When the measuring rod reaches a point where the wall is concave, it is driven to move towards the wall, ensuring contact. At this point, the pointer moves along with the measuring rod, and the change in the dimension indicated by the pointer on the scale visually reflects the degree of wall concavity, making it easy for staff to observe and record. However, although this device optimizes the detection process and makes it convenient, the detection data still requires manual observation and recording by staff. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned technical problems by providing a wall flatness detection device that can automatically record the detected data during the detection process.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention provides the following technical solution: a wall flatness testing device, comprising a measuring ruler, a testing platform on one side of the measuring ruler, a positioning block slidably disposed along its length on the testing platform, and a magnetic induction drawing board distributed along the sliding path of the positioning block, a measuring rod slidably passing through the positioning block and facing the wall, a spring sleeved on the measuring rod, one end of the spring connected to the measuring rod, the other end of the spring connected to the positioning block, a roller at the end of the measuring rod facing the wall, and a magnetic pen located above the magnetic induction drawing board at the end of the measuring rod facing away from the wall.

[0006] As a further optimization of the wall flatness testing device of this utility model, the testing platform is provided with T-shaped guide rails distributed along the length direction of the measuring ruler, and the positioning block is slidably mounted on the T-shaped guide rails.

[0007] As a further optimization of the wall flatness detection device of this utility model, both ends of the T-shaped guide rail are provided with limiting blocks, and both sides of the positioning block facing the limiting block are provided with pull ropes that slide through the corresponding limiting blocks, and the free ends of the two pull ropes are fixedly connected.

[0008] As a further optimization of the wall flatness testing device of this utility model, the testing platform is provided with a through groove, and the magnetic induction drawing board is fixed in the through groove.

[0009] As a further optimization of the wall flatness testing device of this utility model, the testing platform is provided with a handle on the side facing away from the wall.

[0010] This invention has the following advantages: A magnetic pen that can follow the movement of the measuring rod is provided on the measuring rod, and a magnetic induction drawing board distributed along the moving path of the measuring rod is provided on the detection platform. The magnetic pen is located above the magnetic induction drawing board. When the magnetic pen moves synchronously with the measuring rod, the magnetic induction drawing board displays lines that are the same as the moving path of the magnetic pen due to the magnetic force of the magnetic pen. The moving trajectory of the measuring rod during measurement can be displayed through the lines, and the concavity and convexity data of the wall surface can be obtained based on the moving trajectory, without the need for staff to record the detection data. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the detection device of this utility model;

[0012] Attached reference numerals: 1. Measuring ruler, 2. Roller, 3. Measuring rod, 4. Positioning block, 5. Spring, 6. T-shaped guide rail, 7. Testing table, 8. Through groove, 9. Limiting block, 10. Positioning plate, 11. Magnetic induction drawing board, 12. Handle, 13. Magnetic pen, 14. Pull rope. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] like Figure 1 As shown, this utility model provides a wall flatness detection device, including a measuring ruler 1 that can abut against the wall, a measuring rod 3 that can slide along its length on the measuring ruler 1, one end of the measuring rod 3 facing the wall to be detected, and an elastic member that drives the measuring rod 3 to press against the wall to be detected on the measuring ruler 1.

[0015] The elastic element is used to limit the position of the measuring rod 3. When the end of the measuring rod 3 and the side of the measuring ruler 1 are in contact with the wall surface to be inspected, the end of the measuring rod 3 contacts the wall surface first. When both the end of the measuring rod 3 and the side of the measuring ruler 1 are in contact with the wall surface, the elastic force of the elastic element is in a compressed state, making the measuring rod 3 tightly adhere to the wall surface. By controlling the sliding of the positioning block 4, the measuring rod 3 can be moved along the wall surface. If the flatness of the wall surface is uneven, the measuring rod 3 will move towards or away from the wall surface depending on the unevenness of the wall surface it contacts. By recording the displacement data of the measuring rod 3, the flatness data of the wall surface can be obtained.

[0016] In this embodiment, a testing platform 7 is provided on the side of the measuring ruler 1 facing away from the wall. A positioning block 4 is provided on the testing platform 7 and is slidably arranged along the length direction of the measuring ruler 1. The measuring rod 3 is horizontally slidably inserted through the positioning block 4. The elastic element is a spring 5 sleeved on the measuring rod 3. One end of the spring 5 is fixedly connected to the measuring rod 3, and the other end of the spring 5 is fixedly connected to the positioning block 4.

[0017] In this embodiment, a roller 2 is provided at the end of the measuring rod 3 facing the wall. The roller 2 facilitates the movement of the measuring rod 3 along the detection wall and reduces the friction between the two.

[0018] In this embodiment, the detection table 7 is provided with a magnetic induction drawing board 11 distributed along the sliding path of the positioning block 4. A magnetic pen 13 is vertically inserted through the end of the measuring rod 3 away from the wall. The magnetic pen 13 is located above the magnetic induction drawing board 11. During the measurement, the measuring rod 3 moves, which can move the magnetic pen 13 synchronously. During the movement of the magnetic pen 13, the magnetic induction drawing board 11 will display a line with the same movement path as it. The trajectory of the measuring rod 3 during the measurement can be displayed through the line. By simply holding a ruler as a reference, the concavity and convexity data of the wall surface can be obtained according to the movement trajectory of the measuring rod 3, without the need for staff to record the detection data.

[0019] It should be noted that the magnetic drawing board 11 is an existing technology product. Its principle is that the surface of the board is covered with a honeycomb structure containing magnetic powder. This magnetic powder is attracted to the surface of the board by the strong magnetism of the magnetic pen 13, thus creating drawing marks. Simply moving the magnet on the back of the board allows the strong magnetism to attract the magnetic powder back to the bottom of the honeycomb structure, thereby erasing the drawing.

[0020] In this embodiment, the detection platform 7 is provided with T-shaped guide rails 6 distributed along the length of the measuring ruler 1, and the lower end face of the positioning block 4 is provided with a T-shaped groove corresponding to the T-shaped guide rails 6, with the T-shaped guide rails 6 located within the T-shaped grooves. The T-shaped guide rails 6 and the T-shaped grooves cooperate to allow the positioning block 4 to slide along the T-shaped guide rails 6.

[0021] In this embodiment, a positioning plate 10 is fixedly sleeved on the measuring rod 3, one end of the spring 5 is fixedly connected to the positioning plate 10, and the other end of the spring 5 is fixedly connected to the positioning block 4. The positioning plate 10 facilitates the connection between the spring 5 and the measuring rod 3.

[0022] In this embodiment, both ends of the T-shaped guide rail 6 are provided with limiting blocks 9, and both sides of the positioning block 4 facing the limiting block 9 are provided with pull ropes 14 that slide through the corresponding limiting blocks 9. The free ends of the two pull ropes 14 are fixedly connected. By pulling the combination of the two pull ropes 14, the positioning block 4 can be slid. The setting of the limiting blocks 9 facilitates the position limitation of the pull ropes 14.

[0023] In this embodiment, the detection stage 7 is provided with a through groove 8, and the magnetic induction drawing board 11 is fixed in the through groove 8. The design of the through groove 8 exposes the back of the magnetic induction drawing board 11, making it easy to reset the magnetic powder on the magnetic induction drawing board 11. After each monitoring of the point to be detected is completed, an external magnet needs to be moved on the back of the magnetic induction drawing board 11 to clean the lines recorded on the magnetic induction drawing board 11, so that it can be used for recording the next detection point.

[0024] In this embodiment, a handle 12 is provided on the side of the measuring ruler 1 facing away from the wall. The handle 12 makes it easy to hold the measuring ruler 1.

[0025] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A wall surface flatness testing device, comprising a measuring ruler (1), characterized in that: The measuring ruler (1) has a testing platform (7) on one side. The testing platform (7) has a positioning block (4) that slides along its length and a magnetic induction drawing board (11) that slides along the sliding path of the positioning block (4). A measuring rod (3) facing the wall slides through the positioning block (4). A spring (5) is fitted on the measuring rod (3). One end of the spring (5) is connected to the measuring rod (3), and the other end of the spring (5) is connected to the positioning block (4). A roller (2) is provided at the end of the measuring rod (3) facing the wall, and a magnetic pen (13) is provided at the end of the measuring rod (3) facing away from the wall.

2. The wall surface flatness detection device according to claim 1, characterized in that: The testing platform (7) is provided with T-shaped guide rails (6) distributed along the length of the measuring ruler (1), and the positioning block (4) slides on the T-shaped guide rails (6).

3. The wall surface flatness detection device according to claim 2, characterized in that: Both ends of the T-shaped guide rail (6) are provided with limiting blocks (9), and both sides of the positioning block (4) facing the limiting block (9) are provided with pull ropes (14) that slide through the corresponding limiting block (9), and the free ends of the two pull ropes (14) are fixedly connected.

4. The wall surface flatness detection device according to claim 1, characterized in that: The testing platform (7) is provided with a through groove (8), and the magnetic induction drawing board (11) is fixed in the through groove (8).

5. The wall surface flatness detection device according to claim 1, characterized in that: The testing station (7) has a handle (12) on the side facing away from the wall.

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