TWI718727B - Floor flatness measuring instrument and measuring method using the same - Google Patents

Abstract

A floor flatness measuring instrument and measuring method using the same for measuring the flatness of a floor. The floor flatness measuring instrument comprises a long bracket, a fixed seat, a dial indicator and two height adjusting bolts. The long bracket has a plurality of fixing holes. The fixing holes are symmetrically distributed on both sides of the long bracket. The fixed seat is fixed at the center of the long bracket. The dial indicator is longitudinally fixed to the fixed seat. Two height adjustment bolts are provided at both ends of the long bracket. Thereby, the floor flatness measuring instrument can accurately measure the flatness of the floor.

Description

Floor flatness measuring instrument and its measuring method

The present invention relates to the technical field of measuring floors, in particular to a floor flatness measuring instrument and a method for measuring the flatness of the floor using the floor flatness measuring instrument.

The raised floor is set up on the ground or floor by means of raising, so that there will be a certain space between the panel of the raised floor and the ground, and these spaces can be used to lay electrical wires or return air ducts.

The flatness of the raised floor needs to meet certain specifications (please refer to CNS10678). The common methods of measuring the flatness of the raised floor have the problems of difficult operation and low accuracy.

Therefore, the main purpose of the present invention is to provide a floor flatness measuring instrument and a measuring method thereof to solve the above-mentioned problems.

The purpose of the present invention is to provide a floor flatness measuring instrument and its measuring method, which can accurately measure the flatness of the floor. degree.

In order to achieve at least one of the advantages or other advantages, an embodiment of the present invention provides a floor flatness measuring instrument. The floor flatness measuring instrument includes a long bracket, a fixing seat, a dial indicator, and two height-adjustable bolts. .

Among them, the long bracket has a plurality of fixing holes, the fixing holes are symmetrically distributed on both sides of the long bracket, the fixing seat is fixed at the center of the long bracket, the dial indicator is fixed on the fixing seat longitudinally, two The height adjustment bolts are respectively arranged at both ends of the long bracket, and the height adjustment bolts are rotated to adjust the distance between the long bracket and the floor and the horizontal state of the long bracket.

In some embodiments, the floor flatness measuring instrument is used to measure the flatness of the floor.

In some embodiments, the length of the long bracket is greater than 4/5 of the diagonal length of the floor.

In some embodiments, the two height adjustment bolts are respectively placed on the two ends of the diagonal of the floor during measurement, and the measuring head of the dial indicator is located at the midpoint of the diagonal of the floor.

In some embodiments, the fixing seat has a longitudinal groove, the dial indicator includes a back cover with ears, and the back cover with ears is fixed in the longitudinal groove in a screw locking manner.

In some embodiments, the two height adjustment bolts are screwed into the fixing holes at the two ends of the elongated bracket respectively.

In some embodiments, the height adjustment bolts are embossed bolts.

In order to achieve at least one of the advantages or other advantages, another embodiment of the present invention further provides a method for measuring the flatness of the floor. The floor flatness measuring instrument is used to measure the flatness of the floor. The method includes the following steps: 1 ) According to the size of the floor, fix the two height adjustment bolts to the two ends of the long bracket through the fixing holes, and adjust the two height adjustment bolts to the same height so that the long bracket is level; 2) Flat to the floor Perform a three-point zeroing operation on the degree measuring instrument; 3) Place the floor flatness measuring instrument on the floor so that the two height adjustment bolts are located on one of the diagonals of the floor, and record the first measured value of the dial indicator; 4) Rotate the floor flatness measuring instrument by 90 degrees horizontally so that the two height adjustment bolts are located on the other diagonal of the floor, and record the second measured value of the dial indicator; 5) Take the first measured value and the second measured value Difference.

Furthermore, the three-point zeroing operation includes: placing the two height adjustment bolts of the floor flatness measuring instrument on a steel ruler, and at the same time resetting the measured value of the dial indicator to zero.

Further, according to the size of the floor, the step of fixing two height adjusting bolts to the two ends of the long bracket through the fixing holes is to make the distance between the two height adjusting bolts larger than 4/5 of the diagonal length of the floor.

Therefore, by using the floor flatness measuring instrument and the measuring method provided by the present invention, the flatness of the floor can be accurately measured, and the height adjustment bolt can be used to adjust the floor flatness, which makes the floor flatness measurement operation easier.

The above description is only an overview of the technical solutions of the present invention. In order to have a clearer understanding of the technical means of the present invention, you can follow the instructions In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious and understandable, the following is a detailed description of preferred embodiments with accompanying drawings.

10: Floor flatness measuring instrument

12: Floor

14: Long bracket

16: fixed seat

18: Dial indicator

20: Height adjustment bolt

1402: fixed hole

1602: longitudinal groove

1802: with ear back cover

1804: Ear

1806: Measuring head

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 embodiments of the present application, and together with the text description, explain the principle of the present application. Obviously, the drawings in the following description are only some embodiments of the application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor. In the drawings: Figure 1 is a schematic structural diagram of the floor flatness measuring instrument of the present invention; Figure 2 is a schematic structural diagram of the back of Figure 1; Figure 3 is an enlarged schematic diagram of A in Figure 2; Schematic diagram of the flow of the method of degree.

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

In the description of the present invention, it should be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "Bottom", "Inner", "Outer" The orientation or position relations of other indications are based on the orientation or position relationship shown in the drawings, and are only used to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The azimuth structure and operation cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, the term "including" and any variations thereof is intended to cover non-exclusive inclusion.

In the description of the present invention, it should be noted that the terms "installed", "connected", and "connected" should be understood in a broad sense unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.

The terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments. Unless the context clearly dictates otherwise, the singular forms "a" and "one" used herein are also intended to include the plural. It should also be understood that the terms "including" and/or "including" used herein specify the existence of the stated features, integers, steps, operations, units and/or elements, and do not exclude the existence or addition of Add one or more other features, integers, steps, operations, units, elements, and/or combinations thereof.

Please refer to FIG. 1, FIG. 2 and FIG. 3. FIG. 1 is a schematic structural diagram of the floor flatness measuring instrument 10 of the present invention, FIG. 2 is a schematic structural diagram of the back of FIG. 1, and FIG. 3 is an enlarged schematic diagram of A in FIG. In order to achieve at least one of the advantages or other advantages, an embodiment of the present invention provides a floor flatness measuring instrument 10 for measuring the flatness of the floor 12. As shown in Figure 1, the floor flatness measuring instrument 10 includes a long bracket 14, a fixing base 16, a dial indicator 18, the dial indicator 18 is fixed on the fixing base 16, and two height adjustment bolts 20, Two height adjusting bolts 20 are supported on both ends of the long bracket 14. Looking further, the long bracket 14 has a plurality of fixing holes 1402. As shown in FIG. 2, the fixing base 16 has a longitudinal groove 1602, and the dial indicator 18 includes a back cover 1802 with ears.

Wherein, one end of the height adjusting bolt 20 is against the floor 12, and the other end is screwed into the fixing hole 1402 on the elongated bracket 14 to erect the elongated bracket 14 on the floor 12. The height adjustment bolt 20 adjusts its extension distance relative to the long bracket 14 by rotating, so as to keep the long bracket 14 in a horizontal state, and adjust the distance between the long bracket 14 and the floor 12 so that the dial indicator 18 The measuring head 1806 contacts the surface of the floor 12. The fixing holes 1402 are symmetrically distributed on both sides of the elongated bracket 14 to accommodate the height adjusting bolt 20. The fixing base 16 is fixed at the center of the elongated bracket 14 in a screw locking manner. As shown in Figure 3, the dial indicator 18 is fixed in the longitudinal groove 1602 of the fixing seat 16 by screw locking through the ear 1804 of the back cover 1802 to fix the dial indicator 18 to the elongated bracket longitudinally. Measure on 14.

In this embodiment, the long bracket 14 is a square metal tube to provide sufficient structural strength, and the height adjustment bolt 20 is an embossed bolt to facilitate the operation of the user. However, the present case is not limited to this. The long bracket 14 can also be a U-shaped metal bar, and the height adjustment bolt 20 can also be a bolt that adjusts the screw position through a nut to fix the long bracket 14 and control the required height. In addition, the fixing base 16 can also be fixed to the long bracket 14 by welding.

In this embodiment, the length of the long bracket 14 is greater than 4/5 of the diagonal length of the floor 12 to ensure that the height adjustment bolts 20 can be set close to the corners of the floor 12 to obtain accurate floor 12 flatness. Numerical value. However, the present case is not limited to this. Since the sizes of various floors 12 are different, the length of the elongated bracket 14 can be designed to be greater than 4/5 of the diagonal length of the floor 12 of the largest size. When the floor 12 with a smaller size needs to be measured, it can be adjusted through the fixing hole 1402 on the long bracket 14.

In addition, for a square floor, it is only necessary to ensure that the measuring head 1806 of the dial indicator 18 is at the center of the floor 12 during two measurements (along different diagonal directions).

Please refer to FIG. 4. FIG. 4 is a schematic flow chart of the method for measuring the flatness of the floor 12 of the present invention. In order to achieve at least one of the advantages or other advantages, another embodiment of the present invention further provides a method for measuring the flatness of the floor 12, using the floor flatness measuring instrument 10 for measurement, and the measurement steps are as follows:

Step 1 (S01): According to the size of the floor, fix the two height adjustment bolts to the two ends of the long bracket through the fixing holes. And adjust the two height adjustment bolts to the same height, so that the long bracket is in a horizontal state.

Step two (S02): Perform a three-point zeroing operation on the floor flatness measuring instrument.

Step 3 (S03): Place the floor flatness measuring instrument on the floor, make the two height adjustment bolts on a diagonal line of the floor, and record the first measured value of the dial indicator.

Step 4 (S04): Rotate the floor flatness measuring instrument by 90 degrees horizontally so that the two height adjustment bolts are located on the other diagonal of the floor, and record the second measured value of the dial indicator.

Step 5 (S05): Take the difference between the first measured value and the second measured value.

In the above step 2 (S02), the three-point zeroing operation includes: placing the two height adjustment bolts of the floor flatness measuring instrument on a steel ruler, so that the bottom end of the two height adjustment bolts and the dial indicator are measured The head is on the same straight line (that is, on the same horizontal surface), and the measured value of the dial indicator is reset to zero at the same time. The accuracy of the steel ruler is 1/1000mm (0.1μ).

In addition, in this embodiment, when the difference is less than 0.5 mm, it is qualified. However, this value will change due to different eligibility criteria.

To further explain, during the measurement, the distance between the two height adjustment bolts 20 is greater than 4/5 of the diagonal length of the floor 12 to ensure that the height adjustment bolts 20 can be set close to the corners of the floor 12 to obtain an accurate The flatness value of the floor 12.

It is further explained that regular maintenance and inspection should be carried out before the measurement. Check the dial indicator 18, the long bracket 14, the steel ruler and other objects to ensure the accuracy of the floor flatness measuring instrument 10. After taking out the dial indicator 18, the fixing bracket 14, the height adjustment bolt 20 and the steel ruler, clean and confirm that there is no foreign matter, and clean the floor 12 of the object to be tested to confirm that there is no foreign matter. To ensure measurement accuracy.

It should be noted that, in the above-mentioned measurement step, the height adjustment bolt 20 can measure the flatness of the floor 12 of different sizes by changing the screw fixing hole 1402. Moreover, in one embodiment, the elongated bracket 14 is a shrinkable metal tube, which can be reduced in size by shrinking, so as to facilitate storage.

In summary, the floor flatness measuring instrument 10 and method provided by the present invention can accurately measure the flatness of the floor 12, and can be adjusted by the height adjustment bolt 20, making the measurement of the flatness of the floor 12 easier.

The above are only preferred embodiments of this case, and do not impose any restriction on this case. Any person in the technical field who makes any form of equivalent substitution or modification to the technical means and technical content disclosed in this case within the scope of the technical means of this case is not deviated from the technical means of this case. It still falls within the scope of protection of this case.

10‧‧‧Floor flatness measuring instrument

12‧‧‧Floor

14‧‧‧Long bracket

16‧‧‧Fixed seat

18‧‧‧ Dial indicator

20‧‧‧Height adjustment bolt

1402‧‧‧Fixed hole

1806‧‧‧Measuring head

Claims (10)

A method for measuring the flatness of a floor includes the following steps: according to the size of a floor, two height adjustment bolts are respectively fixed to the two ends of a long support through fixing holes, and the two height adjustment bolts are adjusted to the same height, So that the long bracket is in a horizontal state; perform a three-point zeroing operation on a floor flatness measuring instrument; place the floor flatness measuring instrument on the floor so that the two height adjustment bolts are located at one of the diagonal corners of the floor Line, and record the first measured value of one-hundredth meter; rotate the floor flatness measuring instrument 90 degrees horizontally so that the two height adjustment bolts are located on the other diagonal line of the floor, and record the value of the dial indicator A second measured value; and taking a difference between the first measured value and the second measured value. For example, the method described in item 1 of the scope of patent application, wherein the three-point zeroing operation includes: placing the two height adjustment bolts of the floor flatness measuring instrument on a steel ruler, and at the same time the dial indicator The measured value is reset to zero. The method described in item 1 of the scope of patent application, wherein, according to the size of the floor, the step of fixing the two height adjustment bolts to the two ends of the elongated bracket through the fixing holes is such that the two height adjustment bolts are The spacing is greater than 4/5 of the diagonal length of the floor. A floor flatness measuring instrument applied to the method of measuring the flatness of a floor as described in claim 1, comprising: the long bracket having a plurality of the fixing holes, and the fixing holes are symmetrically distributed on the long bracket On both sides; a fixed seat, fixed at the center of the long bracket; The dial indicator is longitudinally fixed to the fixing seat; and the two height adjustment bolts are arranged at both ends of the long bracket. The floor flatness measuring instrument described in item 4 of the scope of patent application, wherein the fixing base has a longitudinal groove, the dial indicator includes a back cover with ears, and the back cover with ears is fixed by screw locking In the longitudinal groove. According to the floor flatness measuring instrument described in item 4 of the scope of patent application, the height adjustment bolt is an embossed bolt. The floor flatness measuring instrument described in item 4 of the scope of patent application, wherein the two height adjusting bolts are screwed into the fixing holes at the two ends of the elongated bracket. The floor flatness measuring instrument described in item 4 of the scope of patent application, wherein the floor flatness measuring instrument is used to measure the flatness of a floor. The floor flatness measuring instrument described in item 8 of the scope of patent application, wherein the length of the long bracket is greater than 4/5 of the diagonal length of the floor. The floor flatness measuring instrument described in item 8 of the scope of patent application, wherein the two height adjusting bolts are respectively placed on both ends of the diagonal of the floor when measuring, and a measuring head of the dial indicator is located At the midpoint of the diagonal of the floor.

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