Floor squareness measuring instrument and measuring method

Abstract

The present invention discloses a floor squareness measuring instrument and method. The instrument comprises a rectangular outer frame and a positioning piece, wherein at least one positioning piece is provided. The rectangular outer frame has a first side and a second side perpendicular to each other. The positioning piece is disposed above the rectangular outer frame and fixed to the first and second sides, allowing it to be mounted on the floor surface. The instrument can thereby detect the squareness of a floor. The instrument has a simple structure, high accuracy, and is easy and quick to operate when performing floor squareness testing.

Description

Technical Field

[0001] The present invention relates to a floor squareness measuring instrument, in particular to a floor squareness measuring instrument similar to a ruler. Background Art

[0002] In actual production and use, flooring for various applications, such as aluminum alloy raised floors and anti-static raised floors, must comply with various corporate, industry, and national standards. Therefore, compliance testing is necessary after production. Compliance testing includes, but is not limited to, floor appearance, mechanical properties, various strength tests, and dimensional inspections.

[0003] One of the standard inspections for flooring compliance is the measurement of the floor's squareness. Squareness, also known as verticality, specifically refers to the verticality of the angles connecting adjacent vertical edges on the floor's surface.

[0004] A square bend ruler is a common tool for measuring product verticality. However, due to its small size, it can only be used to measure the verticality of products placed on a platform. This makes it impossible to measure the verticality of longer products that cannot be placed on a platform. In such cases, verticality measurement can only be performed using complex, time-consuming, and labor-intensive methods, which are inefficient, costly, and offer low accuracy. Furthermore, if the square bend ruler is simply placed against the side of the floor and cannot be kept horizontal, the measurement will inevitably be distorted.

[0005] Therefore, in the field of floor testing, how to measure the positive dimension of the floor simply, quickly and accurately when conducting compliance testing of the floor has become one of the problems that technicians in this field want to actively solve. Summary of the Invention

[0006] The present invention aims to provide a floor squareness measuring instrument that can measure the squareness of a floor and has a simple structure and high detection accuracy. Thus, the floor squareness measuring instrument can be used conveniently and quickly when testing the floor.

[0007] To achieve at least one of the aforementioned advantages or other advantages, one embodiment of the present invention provides a floor squareness measuring instrument comprising a rectangular outer frame and at least one positioning piece. The rectangular outer frame has a first side and a second side that are perpendicular to each other. The positioning piece is disposed on the upper side of the rectangular outer frame and fixed to the first side and the second side for mounting on the floor surface.

[0008] Furthermore, the right-angle outer frame may be a square. Still further, the square may be integrally formed.

[0009] Furthermore, the inner edge of the corner of the right-angled outer frame may have a concave hole.

[0010] Furthermore, the inner edge lengths of the first side and the second side may be greater than the side length of the floor.

[0011] Alternatively, the first side and the second side may be independent of each other and relatively fixed by a positioning piece.

[0012] Furthermore, the positioning piece may be elongated.

[0013] Furthermore, the number of the positioning pieces is at least two.

[0014] Furthermore, the positioning piece may have a first end and a second end opposite to each other, and the first end and the second end are fixedly connected to the first side and the second side respectively.

[0015] Furthermore, the distance between the first end and the corner of the right-angled outer frame may be equal to the distance between the second end and the corner of the right-angled outer frame.

[0016] Furthermore, the first side and the second side of the right-angle outer frame are used to be mounted on two adjacent side surfaces of the floor to detect the right angle of the floor.

[0017] To achieve at least one of the aforementioned advantages or other advantages, one embodiment of the present invention provides a measurement method using the aforementioned floor squareness measuring instrument, the measurement method comprising the following steps: (a) placing the floor squareness measuring instrument flatly at a corner above a floor; (b) confirming whether the positioning piece is flat against the floor; (c) confirming that the first side of the floor squareness measuring instrument is in close contact with a side surface of the floor; (d) using a thickness gauge to measure and record the value of the maximum gap between the floor squareness measuring instrument and the floor; and (e) placing the floor squareness measuring instrument flatly at the remaining corners above the floor, and repeating steps (b) to (d).

[0018] Therefore, the floor squareness measuring instrument provided by the present invention, by providing a fixing plate on the upper side of its rectangular outer frame, has a simple structure and is easy to operate, while also ensuring the accuracy of the floor squareness measuring instrument itself. As a result, the floor squareness measuring instrument is easy and quick to operate when testing floor squareness, and the test results are highly accurate.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, which can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites preferred embodiments and describes them in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0021] Figure 1 Schematic diagram of the appearance of the floor right angle measuring instrument of the present invention;

[0022] Figure 2A 1 is a schematic diagram of the appearance of another embodiment of the floor right angle measuring instrument of the present invention;

[0023] Figure 2B yes Figure 2A A magnified schematic diagram of area A in the middle;

[0024] Figure 3 This is a schematic structural diagram of the floor squareness measuring instrument of the present invention when measuring the squareness of a floor;

[0025] Figure 4 yes Figure 3 A front view of the schematic diagram of the structure shown;

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of region B in the middle; and

[0027] Figure 6 It is a measurement flow chart of the floor right angle measuring instrument of the present invention.

[0028] Figure Labels: 10 - Floor squareness measuring instrument 20 - Right-angle outer frame 20A, 20B - Right-angle outer frame member 22 - First side 24 - Second side 26 - Recessed hole 28 - Slot 30 - Positioning piece 32 - First end 34 - Second end 40 - Floor S - Spacing width DETAILED DESCRIPTION

[0029] The specific structural and functional details disclosed herein are merely representative and are for the purpose of describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to only the embodiments set forth herein.

[0030] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positions based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] The terms used herein are intended only to describe specific embodiments and are not intended to limit exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms "a", "an", "an item" used herein are also intended to include the plural. It should also be understood that the terms "comprise" and / or "include" used herein specify the presence of stated features, integers, steps, operations, units and / or components, and do not preclude the presence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0033] See Figure 1 , Figure 1 Figure 1 is a schematic diagram of the appearance of a floor squareness measuring instrument 10 according to the present invention. To achieve at least one of the aforementioned advantages, or other advantages, one embodiment of the present invention provides a floor squareness measuring instrument 10 comprising a rectangular outer frame 20 and at least one positioning piece 30. The rectangular outer frame 20 has a first side 22 and a second side 24 that are perpendicular to each other. The positioning piece 30 is disposed on the upper side of the rectangular outer frame 20, with its ends fixed to the first side 22 and the second side 24, facilitating installation on two adjacent side surfaces of a floor.

[0034] Furthermore, the outer right-angle frame 20 can be a square. Furthermore, the square can be integrally formed. If the square is integrally formed, the squareness of the floor squareness measuring instrument 10 remains constant and consistent at all times, thereby ensuring the accuracy of the floor squareness measuring instrument 10. The outer right-angle frame 20 or the square can be made of steel or other hard, easily moldable materials.

[0035] Furthermore, the inner edge of the corner of the right-angled outer frame 20 may have a recessed hole 26. During testing, the recessed hole 26 prevents the 90-degree outer corner of the floorboard 40 from interfering with the 90-degree inner corner of the right-angled outer frame 20. This recessed hole 26 assists in positioning and accommodating the corner of the floorboard, allowing the floorboard 40 to smoothly contact the inner right-angle edge of the corner of the right-angled outer frame 20, while also preventing damage to the floorboard or the right-angled outer frame 20 due to impact.

[0036] Furthermore, the inner edge lengths of the first side 22 and the second side 24 can be greater than the side length of the floor. Furthermore, the lengths of the first side 22 and the second side 24 can be greater than 600 mm. This allows the floor squareness measuring instrument 10 to be more securely and quickly mounted on the floor during testing, and allows testing of even longer floors.

[0037] Furthermore, the positioning piece 30 may be elongated. Figure 1 In the example shown, the spacer 30 is an elongated rectangular sheet, and the spacer 30 of the rectangular sheet can be convenient to production, assembly, and easy to operate. In addition, the spacer 30 can be other elongated shapes, such as elongated cylindrical, trapezoidal elongated sheet or elongated column, irregular elongated sheet or elongated column etc.

[0038] Furthermore, the number of the positioning piece 30 is at least one. Figure 1 In the example shown, there are two positioning pieces 30. In actual use, the number of positioning pieces 30 can be one, two, three, four, five, etc., depending on the length of the floor being tested and the inner edge lengths of the first side 22 and the second side 24 of the rectangular outer frame 20. This allows the floor squareness measuring instrument 10 to be placed directly on the floor for testing, making it easy to operate.

[0039] Furthermore, the positioning piece 30 may have a first end 32 and a second end 34 opposite to each other, and the first end 32 and the second end 34 are respectively fixedly connected to the first side 22 and the second side 24. The fixing connection method may be detachable screw fixing, welding, etc.

[0040] Furthermore, the distance between the first end 32 and the corner of the right-angle outer frame 20 can be equal to the distance between the second end 34 and the corner of the right-angle outer frame 20 , which makes the appearance symmetrical and can assist in visually judging the right angle.

[0041] Furthermore, the first side 22 and the second side 24 of the rectangular outer frame 20 are mounted on two adjacent side surfaces of the floor 40 to detect the squareness of the floor 40. Furthermore, the distance between the first end 32 and the corner of the rectangular outer frame 20 is greater than half the length of the inner edge of the first side 22, making the floor squareness measuring instrument 10 less likely to tip over when measuring a floor.

[0042] See Figure 2A , Figure 2A Figure 1 is a schematic diagram of another embodiment of a floor squareness measuring instrument 10 according to the present invention. To achieve at least one of the aforementioned advantages, or other advantages, another embodiment of the present invention provides a floor squareness measuring instrument 10 comprising a rectangular outer frame 20 and at least one positioning piece 30. The rectangular outer frame 20 has a first side 22 and a second side 24 that are perpendicular to each other. The positioning piece 30 is disposed above the rectangular outer frame 20 and fixed to the first and second sides 22, 24 for mounting on the floor surface. The first and second sides 22, 24 are independent and fixed relative to each other via the positioning piece 30.

[0043] See Figure 2B , Figure 2B yes Figure 2A A magnified schematic diagram of area A in the middle. Figure 2B In the example shown, the right-angle outer frame 20 is formed by two independent right-angle outer frame parts 20A and 20B fixedly connected by a positioning piece 30, and the inner edge of the right-angle outer frame 20 formed by the two right-angle outer frame parts 20A and 20B has a slot 28 at the corner. Other connection methods can also be used without affecting the accuracy of the floor squareness measuring instrument 10. Figure 1 In the example shown in FIG2 , the rectangular outer frame members 20A and 20B are elongated strips, and the opposite sides of the first side 22 and the second side 24 are also linear. Furthermore, while ensuring stable vertical accuracy at the intersection of the first side 22 and the second side 24, the rectangular outer frame members 20A and 20B can have various shapes, such as a trapezoidal column or a cylindrical shape with a vertical cross section. In any case, the first side 22 and the second side 24 are always linear.

[0044] Referring to the above content, the main functions of the positioning piece 30 in the floor straightness measuring instrument 10 include but are not limited to: (1) as a fixing part of the right-angle outer frame 20, as shown in Figure 2. (2) as a carrying handle. When the side length of the right-angle outer frame 20 in the floor straightness measuring instrument 10 is long, it is not necessary to grab it during detection. At this time, the positioning piece 30 can be used as a carrying handle to facilitate the grabbing of the floor straightness measuring instrument 10, making the detection operation easier. (3) ensuring the accuracy of the floor straightness measuring instrument 10. When there is no positioning piece 30 on the upper side of the right-angle outer frame 20, the horizontality of the right-angle outer frame 20 will have a certain deviation, thereby affecting the accuracy of the measurement result. In the present invention, when the positioning piece 30 is provided on the upper side of the right-angle outer frame 20, the horizontality of the right-angle outer frame 20 is kept stable, thereby ensuring the accuracy of the floor straightness measuring instrument 10 and improving the accuracy of the measurement result. (4) during detection, the floor straightness measuring instrument 10 is better placed on the floor. Without the positioning piece 30 on the upper side of the right-angle outer frame 20, the center of gravity of the floor squareness measuring instrument 10 is unstable, and it is more difficult to set it on the floor when the first side 22 and the second side 24 are long. With the addition of the positioning piece 30, the center of gravity of the floor squareness measuring instrument 10 is stabilized based on the principle of triangle stability, making it easier to set it on the floor during testing and more convenient to operate.

[0045] See Figure 3 , Figure 3 The figure is a schematic diagram of the structure of the floor squareness measuring instrument of the present invention when measuring floor squareness. To achieve at least one of the aforementioned advantages, or other advantages, another embodiment of the present invention provides a floor squareness measuring instrument 10 for detecting floor squareness. After determining the floor 40 to be tested, the floor squareness measuring instrument 10 is positioned at the right angles of two adjacent side surfaces of the floor 40 by grasping the positioning piece 30. The corner of the floor 40 is then smoothly and quickly brought into contact with the inner right angle of the right angle outer frame 20 via the recessed hole 26 provided on the inner edge of the right angle outer frame 20.

[0046] Combine Figure 3 See also Figure 4 , Figure 4 yes Figure 3 The front view of the structural diagram shown. When the floor squareness measuring instrument 10 is placed at the corner of the two adjacent side surfaces of the floor 40 to be tested, one of the first side 22 and the second side 24 of the right-angle outer frame 20 is closely attached to one of the two adjacent side surfaces of the floor 40 to be tested. The other side of the first side 22 and the second side 24 forms a gap width S with the other side of the two adjacent side surfaces of the floor 40 to be tested, see Figure 4 Shown in area B.

[0047] Combine Figure 4 See also Figure 5 , Figure 5 yes Figure 4 An enlarged schematic diagram of area B in the figure. A certain spacing width S is formed between the other side of the right-angled corner of the two adjacent side surfaces of the floorboard 40 to be inspected and the second side 24 of the right-angled outer frame 20. A measuring tool is used to measure the values of spacing width S at different locations in area B. The maximum value of the measured spacing width S is then compared with the spacing width error value specified in the corresponding standard for right-angle measurement to determine whether the right-angle of the inspected corner of the floorboard 40 to be inspected meets the specified standards. In the illustrated embodiment of the present invention, a thickness gauge is used to measure and determine the maximum value of spacing width S. When S is less than ±0.15 mm, the inspected floorboard 40 is considered to meet the right-angle requirements. Referring to and repeating the aforementioned inspection steps, the four corners of the floorboard 40 to be inspected are individually inspected for right-angle compliance. The thickness gauge is a standard item. The present invention uses a 25-piece thickness gauge with a measurement range of 0.04 to 1.00 mm, with thickness values distributed across the 25-piece gauge.

[0048] In order to achieve at least one of the above advantages or other advantages, another embodiment of the present invention provides a measurement method using the aforementioned floor squareness measuring instrument. Figure 6 , Figure 6 This is a measurement flow chart for the floor squareness measuring instrument 10 of the present invention. To ensure accurate measurements, place the floor squareness measuring instrument 10 and thickness gauge in a toolbox and ensure the toolbox is securely locked before and after measurements. Regular maintenance should also be performed on the instrument 10 and thickness gauge, such as by wiping them with a clean flannel to remove dust, fingerprints, and other debris, followed by a final oiling. Furthermore, before measurement, clean the instrument 10, thickness gauge, and the floor 40 being measured to ensure they are free of any foreign matter. This will help improve the accuracy of the squareness measurements of the floor 40 being measured.

[0049] When the floor squareness measuring instrument 10 of the present invention is used to measure the squareness of the floor 40 , the measuring steps are as follows.

[0050] Step 1 (S01): Place the floor squareness measuring instrument 10 flat on a corner above the floor 40. Simultaneously, the first corner of the floor 40 is smoothly and quickly brought into contact with the inner right angle of the corner of the right-angled outer frame 20 via the recessed hole 26 on the inner right-angled edge of the corner.

[0051] Step 2 (S02): Confirm whether the positioning piece 30 is flat on the floor 40.

[0052] Step 3 (S03): Confirm that the first side 22 of the right-angle outer frame 20 of the floor squareness measuring instrument 10 is in close contact with one side of the measured corner of the floor 40. At this time, the second side 24 of the right-angle outer frame 20 forms a gap width S with the other side of the floor 40.

[0053] Step 4 (S04): Use a thickness gauge to measure the maximum gap width S between the floor squareness measuring instrument 10 and the floor 40 and make a record.

[0054] Step 5 (S05): Place the floor squareness measuring instrument flat on the remaining corners above the floor, and repeat steps 2 to 4.

[0055] After completing step 5, the recorded maximum gap width S at the four corners of the floor 40 is compared with the required standard value to confirm whether the squareness of the measured corners meets the specified requirements. For example, the required standard value in the present invention is ±0.15 mm. In other words, when the maximum gap values at the four corners of the floor 40 are all less than ±0.15 mm, the squareness of the measured floor 40 is considered to be acceptable.

[0056] Therefore, the floor squareness measuring instrument 10 provided by the present invention incorporates a fixing plate 30 disposed above the rectangular outer frame 20, thereby enhancing the stability of the rectangular outer frame 20, ensuring and improving the measurement accuracy of the floor squareness measuring instrument 10 itself, and improving its operability. Consequently, the floor squareness measuring instrument 10 has a simple structure, stable accuracy, and easy operation. Using the floor squareness measuring instrument 10 to measure the squareness of the floor 40 is simple, quick, time-saving, and labor-saving, while also delivering highly accurate test results.

[0057] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make slight changes or modifications to equivalent embodiments of equivalent changes using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A floor squareness measuring instrument, characterized in that: The floor squareness measuring instrument comprises: A right-angled outer frame having a first side and a second side, the first side being perpendicular to the second side, and being mounted on two adjacent side surfaces of a floor to detect the right angle of the floor, wherein the inner edge of the right-angled outer frame at the corner has a recessed hole, and the first side and the second side are independent of each other; and A positioning piece is provided on the upper side of the right-angle outer frame, and its two ends are fixed to the first side and the second side respectively. The positioning piece is used to be mounted on the floor to keep the horizontality of the right-angle outer frame stable. The positioning piece has a first end and a second end opposite to each other, and the first end and the second end are fixedly connected to the first side and the second side respectively.

2. The floor squareness measuring instrument according to claim 1, characterized in that: The inner edge lengths of the first side and the second side are greater than the side length of the floor.

3. The floor squareness measuring instrument according to claim 1, characterized in that: The positioning piece is elongated.

4. The floor squareness measuring instrument according to claim 1, characterized in that: The number of the positioning piece is at least one.

5. The floor squareness measuring instrument according to claim 1, characterized in that: The distance between the first end and the right-angle outer frame corner is equal to the distance between the second end and the right-angle outer frame corner.

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