Device for conveniently measuring inner diameter size of pipe

Abstract

The utility model relates to a convenient measuring device for the inner diameter of a pipe, which comprises an inner ruler and an outer ruler, the inner ruler is slidably connected to the outer ruler, measuring heads are fixedly mounted on the left sides of the outer walls of the inner ruler and the outer ruler, one of the measuring heads is provided with a pipe wall measuring assembly, and the pipe wall measuring assembly comprises a mounting groove. The mounting groove is formed in the front end of the measuring head on the right portion, a sliding block is slidably mounted in the mounting groove, a mounting block is rotatably mounted at the front end of the sliding block, a cavity is formed in the mounting block, measuring grooves are formed in the front end face and the rear end face of the mounting block, a measuring block is slidably mounted in the mounting block, and a measuring rod is slidably mounted on the measuring block. The pipe wall measuring assembly is arranged to measure the wall thickness of the pipe, so that the device can measure data of a plurality of pipes, the inner diameter of the pipe can be rapidly calculated through the data, and the device is convenient to use and carry and can complete measurement of the inner diameter of the pipe without fixing the pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe measuring equipment, and in particular relates to a convenient measuring device for the inner diameter of a pipe. Background Art

[0002] Pipes are materials used to make pipe fittings and are widely used in many fields such as petroleum, chemical industry, electricity, construction, etc. The measurement of pipe dimensions is not only related to product quality control, but also directly related to the safety and efficiency of industrial production. The dimensions of pipes that usually need to be measured are usually the outer diameter, wall thickness and inner diameter;

[0003] At present, some pipe inner diameter measuring equipment usually needs to fix the pipe when in use, and then use two measuring heads to contact the left and right inner walls of the pipe, and use the straight-line distance between the two measuring heads to obtain the inner diameter of the pipe. However, this method requires an additional fixing device to fix the pipe, which is not very convenient to use. In addition, this method requires the straight line between the two measuring heads to pass through the center of the pipe. If it does not pass through the center, the measured result is not the inner diameter of the pipe, but the chord length of the inner circle of the pipe, which leads to measurement errors. Utility Model Content

[0004] The purpose of the utility model is to provide a convenient measuring device for the inner diameter of a pipe, so as to solve the problems existing in the background technology.

[0005] To achieve the above technical objectives, the technical solution adopted by the utility model is as follows: a convenient measuring device for the inner diameter of a pipe, comprising an inner ruler and an outer ruler, the inner ruler being slidably connected to the outer ruler, and measuring heads being fixedly installed on the left sides of the outer walls of the inner ruler and the outer ruler, one of the measuring heads being provided with a pipe wall measuring assembly, the pipe wall measuring assembly comprising a mounting groove, the mounting groove being opened at the front end of the measuring head on the right, a slider being slidably installed in the mounting groove, a mounting block being rotatably installed at the front end of the slider, a cavity being provided inside the mounting block, and measuring grooves being opened on the front and rear end surfaces of the mounting block, a measuring block being slidably installed in the mounting block, and a measuring rod being slidably installed on the measuring block, the outer diameter of the pipe being measured by setting two measuring heads, and the wall thickness of the pipe being measured by setting the pipe wall measuring assembly, so that the device can measure multiple pipe data and quickly calculate the inner diameter of the pipe through the data, and the device is convenient to use and easy to carry, and the inner diameter of the pipe can be measured without fixing the pipe.

[0006] A first spring is fixedly connected between the inner ruler and the outer ruler, and an elastic clamp is provided on the left side of the outer ruler. The tightness of the elastic clamp is adjusted by a knob, wherein two connection parts of the elastic clamp are threadedly connected to the knob, and the threads of the connection parts are opposite, so that the inner ruler and the outer ruler can be automatically contracted during measurement, making measurement more convenient, and the inner ruler is fixed by the elastic clamp, so as to facilitate subsequent data recording.

[0007] The front end of the mounting block is engraved with a wall thickness scale, and the front end of the mounting block is slidably connected with an indicator rod matching the wall thickness scale. The wall thickness scale and the indicator rod are provided to facilitate reading of the pipe wall thickness.

[0008] A second spring is fixedly connected between the upper end of the measuring block and the measuring groove, the length of the front measuring groove is greater than that of the rear measuring groove, and the rear end of the measuring rod and the rear measuring groove are matching inclined surfaces. An L-shaped slot matching the indicating rod is provided at the front of the measuring rod. By providing the second spring, the measuring block is pushed during measurement so that the measuring rod always fits against the inner wall of the pipe. By providing the L-shaped slot, the measuring rod can be clamped when not in use to avoid interference with other components.

[0009] A limit plate is fixedly installed on the right part of the measuring head on the outer ruler, the lower right part of the mounting block is arc-shaped, and the lower left part of the mounting block is rectangular, so that the pipe wall measuring component is perpendicular to the contact surface between the measuring head and the pipe when in use, reducing errors.

[0010] The inner ruler is provided with an outer diameter scale, and the left end face of the measuring head on the right side is flush with the left end face of the outer ruler, so that it is convenient to read the outer diameter of the pipe.

[0011] Beneficial effects of the utility model:

[0012] By setting the pipe wall measuring component, the wall thickness of the pipe is measured, so that the device can measure multiple pipe data and quickly calculate the inner diameter of the pipe through the data. The device is easy to use and carry, and the inner diameter of the pipe can be measured without fixing the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a convenient measuring device for the inner diameter of a pipe according to the utility model;

[0015] Figure 2 The utility model is a schematic diagram of the structure of a convenient measuring device for the inner diameter of a pipe after it is deployed.

[0016] Figure 3 It is a cross-sectional schematic diagram of a convenient measuring device for the inner diameter of a pipe according to the utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of a mounting block in a convenient measuring device for the inner diameter of a pipe according to the utility model;

[0018] The main component symbols are explained as follows: inside ruler 100 and outside ruler 101, measuring head 102, mounting groove 103, slider 104, mounting block 105, measuring groove 106, measuring block 107, measuring rod 108, first spring 201, elastic clamp 202, knob 203, wall thickness scale 301, indicator rod 302, second spring 401, L-shaped slot 402, limit plate 501, outer diameter scale 601. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Embodiment 1:

[0021] like Figure 1-4 As shown, a convenient measuring device for the inner diameter of a pipe comprises an inner ruler 100 and an outer ruler 101, wherein the inner ruler 100 is slidably connected to the outer ruler 101, and a measuring head 102 is fixedly installed on the left side of the outer wall of the inner ruler 100 and the outer ruler 101, wherein one of the measuring heads 102 is provided with a pipe wall measuring component, and the pipe wall measuring component comprises a mounting groove 103, wherein the mounting groove 103 is opened at the front end of the measuring head 102 on the right side, a slider 104 is slidably installed in the mounting groove 103, and a mounting block 105 is rotatably installed at the front end of the slider 104, and the mounting block 105 is rotatably installed at the front end of the slider 104, and the mounting block 105 is rotatably installed at the front end of the slider 104. A cavity is provided inside the pipe, and the front and rear end surfaces of the mounting block 105 are provided with measuring grooves 106. A measuring block 107 is slidably installed in the mounting block 105, and a measuring rod 108 is slidably installed on the measuring block 107. The outer diameter of the pipe is measured by setting two measuring heads 102, and the wall thickness of the pipe is measured by setting a pipe wall measuring component. The device can measure multiple pipe data and quickly calculate the inner diameter of the pipe through the data. The device is easy to use and carry, and the inner diameter of the pipe can be measured without fixing the pipe.

[0022] A first spring 201 is fixedly connected between the inner ruler 100 and the outer ruler 101, and an elastic clamp 202 is provided on the left side of the outer ruler 101. The tightness of the elastic clamp 202 is adjusted by a knob 203, wherein the two connection parts of the elastic clamp 202 are threadedly connected to the knob 203, and the threads of the connection parts are opposite, so that the inner ruler 100 and the outer ruler 101 can be automatically contracted during measurement, making the measurement more convenient, and the inner ruler 100 is fixed by the elastic clamp 202, so as to facilitate the subsequent recording of data.

[0023] The front end of the mounting block 105 is engraved with a wall thickness scale 301, and the front end of the mounting block 105 is slidably connected with an indicator rod 302 matching the wall thickness scale 301. The wall thickness scale 301 and the indicator rod 302 are provided to facilitate reading of the pipe wall thickness.

[0024] A second spring 401 is fixedly connected between the upper end of the measuring block 107 and the measuring groove 106. The length of the front measuring groove 106 is greater than that of the rear measuring groove 106, and the rear end of the measuring rod 108 and the rear measuring groove 106 are inclined surfaces that match each other. The front part of the measuring rod 108 is provided with an L-shaped slot 402 that matches the indicator rod 302. By setting the second spring 401, the measuring block 107 is pushed during measurement, so that the measuring rod 108 always fits against the inner wall of the pipe. By setting the L-shaped slot 402, the measuring rod 108 can be clamped when not in use to avoid interference with other components.

[0025] A limit plate 501 is fixedly mounted on the right side of the measuring head 102 on the outside ruler 101, the lower right part of the mounting block 105 is arc-shaped, and the lower left part of the mounting block 105 is rectangular, so that the pipe wall measuring assembly is perpendicular to the contact surface between the measuring head 102 and the pipe when in use, reducing errors.

[0026] An outer diameter scale 601 is provided on the inner ruler 100, and the left end face of the measuring head 102 on the right is flush with the left end face of the outer ruler 101, so as to facilitate reading the outer diameter of the pipe.

[0027] When the present embodiment is in use, the inner ruler 100 and the outer ruler 101 are pulled apart. During this process, the first spring 201 is pulled. After placing the pipe between the two measuring heads 102, the inner ruler 100 and the outer ruler 101 are loosened. The first spring 201 contracts, so that the two measuring heads 102 clamp the pipe. The outer diameter of the pipe can be read through the overlap position of the outer diameter scale 601 and the left end face of the outer ruler 101. The mounting block 105 is rotated, the measuring rod 108 is lifted, and after the indicating rod 302 is taken out of the L-shaped slot 402, the measuring rod 108 is put down, and the second spring 401 is released. Put it in place, push the measuring block 107 and the measuring rod 108 to make them fit against the inner wall of the pipe, and slide the mounting block 105 vertically. During this process, the measuring rod 108 will move horizontally along the inner wall of the pipe and push the indicating rod 302. When the measuring rod 108 moves to the same plane as the contact point between the measuring head 102 and the pipe, the measuring rod 108 moves to its farthest distance in the pipe and cannot continue to push the indicating rod 302. The wall thickness of the pipe can be read through the coincidence point of the indicating rod 302 and the wall thickness scale 301, and the inner diameter of the pipe can be calculated by subtracting the wall thickness of the pipe from the outer diameter of the pipe.

[0028] This embodiment measures the wall thickness of the pipe by setting up a pipe wall measuring component, so that the device can measure multiple pipe data and quickly calculate the inner diameter of the pipe through the data. In addition, the device is easy to use and carry, and the inner diameter of the pipe can be measured without fixing the pipe.

[0029] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A convenient measuring device for the inner diameter of a pipe, comprising an inner ruler and an outer ruler, wherein the inner ruler is slidably connected to the outer ruler, and a measuring head is fixedly installed on the left side of the outer wall of the inner ruler and the outer ruler, characterized in that: One of the measuring heads is provided with a pipe wall measuring component, and the pipe wall measuring component includes a mounting groove, which is opened at the front end of the measuring head on the right side, a slider is slidably installed in the mounting groove, a mounting block is rotatably installed at the front end of the slider, a cavity is provided inside the mounting block, and measuring grooves are opened on the front and rear end surfaces of the mounting block, a measuring block is slidably installed in the mounting block, and a measuring rod is slidably installed on the measuring block.

2. A convenient measuring device for inner diameter of a pipe according to claim 1, characterized in that: A first spring is fixedly connected between the inner ruler and the outer ruler, and an elastic clamp is arranged on the left side of the outer ruler, and the tightness of the elastic clamp is adjusted by a knob.

3. The convenient measuring device for inner diameter of a pipe according to claim 1, characterized in that: The front end of the mounting block is engraved with a wall thickness scale, and the front end of the mounting block is slidably connected with an indicating rod matching the wall thickness scale.

4. A convenient measuring device for inner diameter of a pipe according to claim 3, characterized in that: A second spring is fixedly connected between the upper end of the measuring block and the measuring slot, the length of the front measuring slot is greater than that of the rear measuring slot, and the rear end of the measuring rod and the rear measuring slot are mutually matching inclined surfaces, and the front part of the measuring rod is provided with an L-shaped slot matching the indicating rod.

5. The convenient measuring device for inner diameter of a pipe according to claim 1, characterized in that: A limit plate is fixedly mounted on the right part of the measuring head on the outside ruler, the lower right part of the mounting block is arc-shaped, and the lower left part of the mounting block is rectangular.

6. The convenient measuring device for inner diameter of a pipe according to claim 2, characterized in that: The inner ruler is provided with an outer diameter scale, and the left end surface of the measuring head on the right side is flush with the left end surface of the outer ruler.

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