Slidable flatness measuring tool

Abstract

The utility model relates to a slidable flatness measuring tool, which comprises a first rotating rod and a second rotating rod, the first rotating rod is rotatably connected with the second rotating rod through a hinge, the first rotating rod and the second rotating rod are cuboids with straight edges, and the first rotating rod and the second rotating rod are connected through a hinge. A flatness detection device is installed on the front face of the first rotating rod and the front face of the second rotating rod and comprises a sliding support, a fixed magnetic sheet, a detection rod and a limiting magnetic sheet. Compared with an existing flatness detection ruler, the flatness detection ruler can detect flatness and measure flatness data of any point only through single-person operation without the cooperation of a feeler gauge, avoids the step of repeated measurement by using the feeler gauge, and is low in measurement error, convenient to use, visual in data reaction and high in accuracy. Meanwhile, the problem that the wedge-shaped feeler gauge is lost and cannot be used for measurement is solved, and the flatness of a measured surface can be quickly and accurately measured by a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering measuring tools, in particular to a slidable flatness measuring tool. Background Art

[0002] During construction, the flatness of building facades, interior walls, and floors must be regularly inspected to ensure that the construction quality meets the requirements of the drawings and specifications. Existing methods for measuring flatness typically use a construction engineering measuring device placed against the surface being measured, and a wedge-shaped feeler gauge is used to check the size of the gap. This method is cumbersome, prone to errors, and unable to accurately and quickly detect flatness. The wedge-shaped feeler gauge and construction engineering measuring device are two separate objects, and in actual measurement work, problems such as the wedge-shaped feeler gauge being lost, being difficult to operate by one person, and inaccurate readings often occur, causing inconvenience for on-site inspections. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides a slidable flatness measuring tool.

[0004] To achieve the above-mentioned object, the present invention adopts the following technical solution: a slidable flatness measuring tool, comprising: a first rotating rod and a second rotating rod, wherein the first rotating rod and the second rotating rod are rotatably connected via a hinge, the first rotating rod and the second rotating rod are both rectangular parallelepipeds with straight edges, and flatness detection devices are installed on the front surfaces of the first rotating rod and the second rotating rod;

[0005] The flatness detection device includes a sliding support, a fixed magnetic piece, a detection rod and a limiting magnetic piece. The sliding support is fixedly arranged in the first rotating rod and the second rotating rod. A fixed magnetic piece is fixedly installed on the bottom of the sliding support. A detection rod is provided at the top notch of the sliding support. A limiting magnetic piece is fixedly installed on the bottom of the detection rod. The limiting magnetic piece is installed opposite to the surface of the fixed magnetic piece with the same polarity. The surface of the detection rod is engraved with scale marking lines.

[0006] Furthermore, lock buckles are installed on the side walls of the first rotating rod and the second rotating rod near the hinge rotation connection position.

[0007] Furthermore, anti-slip grips are provided on the reverse sides of the first rotating rod and the second rotating rod.

[0008] Furthermore, a pointer adjustment screw, a vertical pointer and a verticality scale are installed on the left side wall of the first rotating rod, and a level bubble gauge is installed on the reverse side of the second rotating rod.

[0009] Furthermore, the bottom ends of the first rotating rod and the second rotating rod are fixedly connected with a ruler foot.

[0010] Furthermore, the scale marking lines corresponding to positions of 4 mm, 5 mm and 8 mm are marked in bold.

[0011] The beneficial effects of the present invention are as follows: the present invention changes the flatness detection ruler into a slidable flatness measuring tool on the original basis; when measuring flatness, it is only necessary to unfold the first rotating rod and the second rotating rod, fix them with a lock, slide the flatness detection device to the measured point, place the side with the flatness detection device against the measured surface, and reflect the flatness value of the measured surface through the extension and contraction of the flatness detection device; compared with the existing flatness detection ruler, it only requires one person to operate, and can detect flatness without the need for a feeler gauge; the flatness data of any point can be measured, avoiding the step of repeated measurement with a feeler gauge; the measuring tool has low measurement error, is easy to use, and has intuitive data response; at the same time, it avoids the problem of being unable to measure due to the loss of the wedge-shaped feeler gauge, and can help staff quickly and accurately measure the flatness of the measured surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a front view of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model after expansion;

[0015] Figure 4 It is a cross-sectional schematic diagram of a flatness detection device;

[0016] In the figure: 1 - first rotating rod; 2 - second rotating rod; 3 - lock; 4 - pointer adjustment screw; 5 - vertical pointer; 6 - verticality scale; 7 - flatness detection device; 701 - sliding support; 702 - fixed magnetic plate; 703 - detection rod; 704 - limit magnetic plate; 705 - scale mark; 8 - anti-slip grip; 9 - bubble level; 10 - ruler foot

[0017] The drawings in this utility model are all schematic diagrams, and their sizes do not represent actual sizes;

[0018] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] like Figures 1 to 4As shown, a slidable flatness measuring tool includes: a first rotating rod 1 and a second rotating rod 2, wherein the first rotating rod 1 and the second rotating rod 2 are rotatably connected via a hinge, and the first rotating rod 1 and the second rotating rod 2 are both rectangular parallelepipeds with straight edges, and a flatness detection device 7 is installed on the front of the first rotating rod 1 and the second rotating rod 2;

[0021] The flatness detection device 7 includes a sliding support 701, a fixed magnetic plate 702, a detection rod 703 and a limiting magnetic plate 704. The sliding support 701 is fixedly arranged in the first rotating rod 1 and the second rotating rod 2. The fixed magnetic plate 702 is fixedly installed on the bottom of the sliding support 701. A detection rod 703 is provided at the top notch of the sliding support 701. A limiting magnetic plate 704 is fixedly installed on the bottom of the detection rod 703. The limiting magnetic plate 704 is installed opposite to the surface of the fixed magnetic plate 702 with the same polarity. The surface of the detection rod 703 is engraved with a scale marking line 705.

[0022] The force generated by the mutual repulsion between the limiting magnetic plate 704 and the fixed magnetic plate 702 clamps the detection rod 703 in the slot of the sliding support 701. When measuring the flatness of the measured surface, the side with the flatness detection device 7 is placed against the measured surface, and the detection rod 703 is moved to the position of the measured point. The exposed length of the detection rod 703 varies according to the size of the gap between the measured point and the measuring tool, and the specific value is read through the scale marking line 705 on the detection rod 703.

[0023] A lock 3 is mounted on the side wall of the first and second rotating rods 1 and 2 near the hinged connection. When the first and second rotating rods 1 and 2 are unfolded and straightened, the lock 3 can lock the first and second rotating rods 1 and 2 in the straight position, facilitating inspection operations.

[0024] The reverse sides of the first rotating rod 1 and the second rotating rod 2 are both provided with anti-skid grips 8. By providing the anti-skid grips 8, the measuring tool can be held more firmly.

[0025] A pointer adjustment screw 4, a vertical pointer 5, and a verticality scale 6 are mounted on the left side of the first rotating rod 1. A bubble level 9 is mounted on the back side of the second rotating rod 2. The verticality of the measured surface can be measured using the vertical pointer 5, verticality scale 6, and bubble level 9. The vertical pointer 5 can be calibrated using the pointer adjustment screw 4. The specific structures of the pointer adjustment screw 4, vertical pointer 5, and verticality scale 6 are all common in the prior art.

[0026] The bottom ends of the first rotating rod 1 and the second rotating rod 2 are fixedly connected with a ruler foot 10. The ruler foot 10 plays the role of protecting the rod body surface and supporting the measurement.

[0027] The scale marking lines 705 corresponding to 4 mm, 5 mm and 8 mm are bolded, so that the values ​​can be read more clearly and directly when measuring flatness.

[0028] The working principle and usage process of the present invention are as follows: when measuring, the first rotating rod 1 and the second rotating rod 2 are unfolded, and the first rotating rod 1 and the second rotating rod 2 are fixed with the lock 3, and the side with the flatness detection device 7 is placed against the measured surface, and the detection rod 703 is slid to the measured point. The flatness value of the measured surface can be read through the scale indicating line 705 on the detection rod 703.

[0029] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A slidable flatness measuring tool, characterized in that: include: A first rotating rod (1) and a second rotating rod (2), wherein the first rotating rod (1) and the second rotating rod (2) are rotatably connected via a hinge, the first rotating rod (1) and the second rotating rod (2) are both rectangular parallelepipeds with straight edges, and a flatness detection device (7) is installed on the front of the first rotating rod (1) and the second rotating rod (2); The flatness detection device (7) comprises a sliding support (701), a fixed magnetic piece (702), a detection rod (703) and a limiting magnetic piece (704); the sliding support (701) is fixedly arranged in the first rotating rod (1) and the second rotating rod (2); the fixed magnetic piece (702) is fixedly installed at the bottom of the sliding support (701); a detection rod (703) is provided at the top notch of the sliding support (701); a limiting magnetic piece (704) is fixedly installed at the bottom of the detection rod (703); the limiting magnetic piece (704) and the fixed magnetic piece (702) are installed opposite to each other with the same polarity; and a scale mark (705) is engraved on the surface of the detection rod (703).

2. A slidable flatness measuring tool according to claim 1, characterized in that: A lock buckle (3) is installed on the side walls of the first rotating rod (1) and the second rotating rod (2) close to the hinge rotation connection position.

3. The slidable flatness measuring tool according to claim 1, characterized in that: Anti-slip grips (8) are provided on the reverse sides of the first rotating rod (1) and the second rotating rod (2).

4. The slidable flatness measuring tool according to claim 1, characterized in that: A pointer adjustment screw (4), a vertical pointer (5) and a verticality scale (6) are installed on the left side wall of the first rotating rod (1), and a horizontal bubble meter (9) is installed on the reverse side of the second rotating rod (2).

5. The slidable flatness measuring tool according to claim 4, characterized in that: The bottom ends of the first rotating rod (1) and the second rotating rod (2) are both fixedly connected with a ruler foot (10).

6. The slidable flatness measuring tool according to claim 1, characterized in that: The scale marking lines (705) corresponding to the positions of 4 mm, 5 mm and 8 mm are marked in bold.

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