Building wall flatness detection ruler

Abstract

The utility model discloses a building wall surface flatness detection ruler, which belongs to the technical field of building detection tools and comprises two connecting plates, a same guiding rule is fixedly connected in the two connecting plates, and a detection device for detecting flatness is sleeved outside the guiding rule. According to the utility model, the threaded rod is driven to axially move in the nut by rotating the handle, the suction cup is driven to generate displacement and form negative pressure fixation with the wall surface, so that the connecting plate and the guiding rule are stably fixed at the detection position, in the detection process, an operator axially slides the detection box along the guiding rule, and the detection box is in guide fit with the guiding rule through the rectangular groove; meanwhile, the detection head is driven to keep moving, the elastic rod mechanism ensures that the detection head always keeps constant contact pressure with the wall surface, displacement data acquired by the detection head is transmitted to a processing circuit in the detection box in real time, and finally, a flatness detection result is output through a display screen, so that automatic data acquisition in the detection process is realized through the design; accurate measurement can be completed without manual continuous pressure application.

Description

Technical Field

[0001] This utility model belongs to the technical field of building inspection tools, and in particular relates to a ruler for testing the flatness of building walls. Background Technology

[0002] A wall flatness measuring ruler is a specialized tool for measuring the flatness of building walls. It mainly consists of two connecting plates, a fixed ruler, and a movable measuring device. The measuring device includes a measuring box, a measuring head, and a display screen, which can monitor and display wall flatness data in real time. The fixing device adopts a threaded rod and suction cup structure, which facilitates quick fixation to the wall for testing. This tool has a simple structure and is easy to operate, which can improve the efficiency and accuracy of construction quality inspection. It is suitable for scenarios such as building decoration and project acceptance.

[0003] Existing technologies disclose several utility model patents in the field of engineering testing technology. Among them, utility model patent application number CN219607942U discloses a wall flatness testing ruler. Specifically, this utility model belongs to the field of building construction technology, specifically a wall flatness testing ruler. It includes a ruler body and a top plate disposed on top of the ruler body. Side plates are fixedly connected to the bottom of the top plate and to the front and back of the ruler body. A sliding groove is formed on the front of each side plate. The front and back of the ruler body are slidably connected to the inner surfaces of the two sliding grooves via sliders. A movable groove is formed on the top of the top plate, and a fixing mechanism is slidably connected to the inner surface of the movable groove. The sliding grooves and sliders allow the ruler body to slide between the top plate and the two side plates, thereby extending and expanding the length of the ruler body, thus increasing the range of wall flatness testing. This makes it highly practical.

[0004] In existing technologies, the detection process relies on the operator's visual judgment, resulting in highly subjective measurement results and a lack of quantitative basis. Secondly, traditional detection tools require continuous manual pressure to maintain stable contact with the wall, which not only increases the intensity of operation but also easily leads to measurement errors due to uneven pressure.

[0005] Based on this, this utility model designs a building wall flatness testing ruler to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to address the problems in the existing technology where the detection process relies on the operator's visual judgment, resulting in highly subjective measurement results and a lack of quantitative basis; secondly, traditional detection tools require continuous manual pressure to maintain stable contact with the wall surface, which not only increases the intensity of operation but also easily leads to measurement errors due to uneven pressure. Therefore, this invention proposes a building wall flatness detection ruler.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A building wall flatness testing ruler includes two connecting plates, with the same ruler fixedly connected inside the two connecting plates. The ruler is fitted with a testing device for flatness testing, and a fixing device for fixing to the wall is connected through the connecting plates.

[0009] The detection device includes a detection box, and a detection head for monitoring the wall surface is provided on the back of the detection box.

[0010] As a further description of the above technical solution:

[0011] The detection device also includes a display screen, which is installed inside the detection box. A fixing block is fixedly connected to the back of the detection box, and an elastic rod is provided inside the fixing block. The detection head is fixedly connected to the outside of the detection head.

[0012] As a further description of the above technical solution:

[0013] The detection box contains a battery pack and a circuit board. The detection box is electrically connected to the display screen and the detection head.

[0014] As a further description of the above technical solution:

[0015] The telescopic end of the elastic rod forms a sliding connection with the fixed block.

[0016] As a further description of the above technical solution:

[0017] The fixing device includes a nut that is connected through the connecting plate. A threaded rod is threaded into the nut. A handle is fixedly connected to one end of the threaded rod, and a suction cup is fixedly connected to the other end of the threaded rod.

[0018] As a further description of the above technical solution:

[0019] The handle cover is equipped with an anti-slip sleeve to prevent slippage.

[0020] As a further description of the above technical solution:

[0021] The suction cup has an annular sealing gasket on its edge, and the annular sealing gasket is made of elastic rubber, and its outer diameter is larger than that of the suction cup.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] In this invention, two connecting plates are first positioned on the wall surface to be tested. By rotating the handle, the threaded rod is driven to move axially within the nut, causing the suction cup to displace and form a negative pressure with the wall surface, thus fixing the connecting plates and the straightedge stably in the testing position. During the testing process, the operator slides the testing box along the straightedge axis. The testing box forms a guiding fit with the straightedge through a rectangular groove, while simultaneously driving the testing head to keep moving. The elastic rod mechanism ensures that the testing head always maintains a constant contact pressure with the wall surface. The displacement data collected by the testing head is transmitted in real time to the processing circuit inside the testing box, and finally the flatness test result is output through the display screen. This design realizes automated data acquisition in the testing process, and accurate measurement can be completed without continuous manual pressure. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a building wall flatness testing ruler proposed in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of a wall flatness testing ruler / edge proposed in this utility model;

[0026] Figure 3 This utility model proposes a ruler for measuring the flatness of building walls. Figure 2 Enlarged structural diagram of section A;

[0027] Figure 4 This utility model proposes a ruler for measuring the flatness of building walls. Figure 2 Enlarged structural diagram of part B.

[0028] Legend:

[0029] 1. Connecting plate; 2. Straightedge; 3. Detection device; 31. Detection box; 32. Display screen; 33. Rectangular groove; 34. Fixing block; 35. Elastic rod; 36. Detection head; 4. Fixing device; 41. Nut; 42. Threaded rod; 43. Handle; 44. Suction cup. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-4 ,

[0032] This utility model provides a technical solution: a building wall flatness testing ruler, including two connecting plates 1, with the same ruler 2 fixedly connected inside the two connecting plates 1, and a testing device 3 for testing flatness is provided on the outer sleeve of the ruler 2, and a fixing device 4 for fixing to the wall is connected through the connecting plates 1.

[0033] The detection device 3 includes a detection box 31, and a detection head 36 for monitoring the wall surface is provided on the back of the detection box 31.

[0034] Specifically, such as Figure 2-4 As shown, the detection device 3 also includes a display screen 32, which is installed inside the detection box 31. A fixing block 34 is fixedly connected to the back of the detection box 31. An elastic rod 35 is provided inside the fixing block 34. The detection head 36 is fixedly connected to the outside of the detection head 36. The elastic rod 35 is installed inside the fixing block 34 through a sliding connection. This structural design allows the detection head 36 to adapt to the slight undulations of the wall surface and maintain constant contact pressure. The telescopic characteristics of the elastic rod 35 not only ensure the tight fit between the detection head 36 and the wall surface, but also avoid measurement errors caused by rigid contact, significantly improving the accuracy of the detection data.

[0035] The detection box 31 contains a battery pack and a circuit board. The detection box 31 is electrically connected to the display screen 32 and the detection head 36. The telescopic end of the elastic rod 35 and the fixed block 34 form a sliding connection. The fixing device 4 includes a nut 41, which is connected through the connecting plate 1. A threaded rod 42 is threaded inside the nut 41. One end of the threaded rod 42 is fixedly connected to a handle 43, and the other end of the threaded rod 42 is fixedly connected to a suction cup 44. The handle 43 is covered with an anti-slip sleeve to prevent slipping. The anti-slip sleeve covers the outer surface of the handle 43 and increases the coefficient of friction to prevent hand slippage during operation. This structure reduces the grip strength required by the operator while ensuring effective transmission of rotational torque. It is especially suitable for long-term continuous detection operations and takes into account both ergonomics and operational reliability.

[0036] The suction cup 44 has an annular sealing gasket on its edge. The annular sealing gasket is made of elastic rubber and its outer diameter is larger than that of the suction cup 44. When the suction cup 44 is compressed, the sealing gasket preferentially forms an elastic sealing interface with the wall surface. This design effectively enhances the sealing performance of negative pressure adsorption and prevents displacement caused by air leakage during the detection process. At the same time, the flexibility of the rubber material can adapt to walls with different surface roughness.

[0037] During operation, the two connecting plates 1 are first positioned on the wall surface to be tested. By rotating the handle 43, the threaded rod 42 is driven to move axially within the nut 41, causing the suction cup 44 to displace and form a negative pressure to fix it to the wall surface, thus stabilizing the connecting plates 1 and the straightedge 2 in the testing position. During the testing process, the operator slides the testing box 31 along the axial direction of the straightedge 2. The testing box 31 forms a guiding fit with the straightedge 2 through the rectangular groove 33, while simultaneously driving the testing head 36 to keep moving. The elastic rod 35 mechanism ensures that the testing head 36 always maintains a constant contact pressure with the wall surface. The displacement data collected by the testing head 36 is transmitted in real time to the processing circuit inside the testing box 31, and finally the flatness test result is output through the display screen 32. This design realizes automated data acquisition in the testing process, and accurate measurement can be completed without continuous manual pressure.

[0038] 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 wall flatness testing ruler, comprising two connecting plates (1), characterized in that, The same straightedge (2) is fixedly connected inside the two connecting plates (1). The straightedge (2) is fitted with a detection device (3) for detecting flatness. A fixing device (4) for fixing to the wall is connected through the connecting plate (1). The detection device (3) includes a detection box (31), and a detection head (36) for monitoring the wall surface is provided on the back of the detection box (31).

2. The building wall flatness testing ruler according to claim 1, characterized in that, The detection device (3) also includes a display screen (32), which is installed inside the detection box (31). A fixing block (34) is fixedly connected to the back of the detection box (31). An elastic rod (35) is provided inside the fixing block (34). The detection head (36) is fixedly connected to the outside of the detection head (36).

3. A building wall flatness testing ruler according to claim 2, characterized in that, The detection box (31) is equipped with a battery pack and a circuit board. The detection box (31) is electrically connected to the display screen (32) and the detection box (31) is electrically connected to the detection head (36).

4. A building wall flatness testing ruler according to claim 2, characterized in that, The telescopic end of the elastic rod (35) and the fixed block (34) form a sliding connection.

5. A building wall flatness testing ruler according to claim 1, characterized in that, The fixing device (4) includes a nut (41) which is connected through the connecting plate (1). A threaded rod (42) is threadedly connected inside the nut (41). A handle (43) is fixedly connected to one end of the threaded rod (42), and a suction cup (44) is fixedly connected to the other end of the threaded rod (42).

6. A building wall flatness testing ruler according to claim 5, characterized in that, The handle (43) is covered with a non-slip sleeve to prevent slipping.

7. A building wall flatness testing ruler according to claim 5, characterized in that, The edge of the suction cup (44) is provided with an annular sealing gasket, and the material of the annular sealing gasket is elastic rubber, and its outer diameter is larger than the outer diameter of the suction cup (44).

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