Variable-diameter measuring device for measuring pipe diameter

Abstract

The invention relates to the technical field of measuring tools, and particularly discloses a variable-diameter measuring device for pipe diameter measurement, which comprises an elastic open ring made of an elastic material, round head blocks are symmetrically and fixedly connected to the two ends of the elastic opening ring. An accurate inner circle is formed through the elastic opening ring and the round head blocks, an arc butt joint position is formed in the first outlet groove and the second outlet groove, and therefore when the round head blocks are pushed to abut against the outer surface of the drainage pipe to be opened, the two round head blocks are far away from each other to stretch the second leather tape, and then the second leather tape is driven by the two round head blocks to fully cover the outer surface of the drainage pipe. According to the method, the circumference of the drain pipe can be rapidly measured through one-hand operation, the diameter of the drain pipe can be rapidly measured, the diameter of the drain pipe can be rapidly measured, and the diameter of the drain pipe can be rapidly measured through one-hand operation. And in addition, the device can be adapted to drain pipes with different diameters for rapid measurement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring tools, in particular to a variable-diameter measuring device for pipe diameter measurement. BACKGROUND

[0002] Pipe diameter refers to the average value of the outer diameter and the inner diameter of the pipe when the pipe wall is relatively thin, so the average value of the outer diameter and the inner diameter of the pipe is taken as the pipe diameter. Generally, the average value of the inner diameter and the outer diameter is taken as the pipe diameter when the pipe is made of general synthetic materials or metal and the inner diameter is relatively large. When the outer diameter is large enough, the inner diameter and the outer diameter need to be measured separately.

[0003] A pipe diameter measuring device is disclosed in Chinese Utility Model Patent No. CN209085502U, which was published on July 9, 2019. The pipe diameter measuring device includes a first hinged rod and a second hinged rod. The left part of the first hinged rod and the left part of the second hinged rod are hingedly connected. A tape measure is fixed to the first hinged rod or the second hinged rod on the left side of the hinged point of the first hinged rod and the second hinged rod. The pipe diameter measuring device has a reasonable and compact structure, is easy to use, and can replace the combination of an outer caliper and a vernier caliper for measuring the outer diameter of a pipeline, and can also replace the combination of an inner caliper and a vernier caliper for measuring the inner diameter of a pipeline. That is, the pipe diameter measuring device has the functions of measuring the outer diameter and the inner diameter of a pipeline. By reading the tape measure reading, the outer diameter or the inner diameter of the pipeline can be converted, and the measurement error is small, thereby improving the measurement accuracy.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: the measurement device of the prior art needs to be manually adjusted and connected with the drain pipe, so that it can accurately fit the inner wall and the outer wall of the drain pipe. It is not possible to quickly measure the inner diameter and the outer diameter of the drain pipe, resulting in low measurement efficiency and inability to meet the function of rapid measurement. SUMMARY

[0005] The present application aims to solve the above technical problems and provide a variable-diameter measuring device for pipe diameter measurement.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The technical solution adopted by the present application to solve the technical problems is: a variable-diameter measuring device for pipe diameter measurement, comprising an elastic opening ring made of an elastic material; two ends of the elastic opening ring are symmetrically fixed with a round head block; one side of the round head block is provided with a first mounting groove and a second mounting groove; the first mounting groove and the second mounting groove are respectively provided with a first outlet groove and a second outlet groove; a second tape measure is inserted into the first mounting groove; the end of the second tape measure is slid through the first outlet groove and the second outlet groove and fixed in the second mounting groove.

[0008] Further, the other side of the round head block is symmetrically provided with a third mounting slot; a straight-through slot is communicated in the third mounting slot; a first leather measuring tape is inserted into the third mounting slot; one end of the first leather measuring tape is fixed in the third mounting slot by sliding through the straight-through slot.

[0009] Further, a closing cover plate is detachably sleeved on the round head block corresponding to the first mounting slot, the second mounting slot and the third mounting slot.

[0010] The pipe diameter measuring variable diameter measuring device has the following beneficial effects:

[0011] 1. The elastic opening ring and the round head block form an accurate inner circle, and the first outlet slot and the second outlet slot form a circular arc butt joint position, so that when the round head block is pushed against the outer surface of the drain pipe and expanded, the two round head blocks are away from each other to stretch the second leather measuring tape, and then the second leather measuring tape is driven by the two round head blocks to fully cover the outer surface of the drain pipe, so that the value of the stretched second leather measuring tape surface aligned with the gap between the two round head blocks can be observed through the round head block made of transparent material, thereby completing the measurement of the circumference of the drain pipe, and then the diameter is calculated according to the circumference, this method can be used to quickly measure the circumference of the drain pipe with one hand, and then the diameter is calculated, and different diameter drain pipes can be quickly measured.

[0012] 2. The first leather measuring tape is used to measure the distance between the two round head blocks vertically, so that when measuring the diameter of the drain pipe, the two round head blocks are moved to the vicinity of the diameter value of the drain pipe and moved left and right several times, and the maximum value displayed by the first leather measuring tape can be observed to obtain the diameter of the drain pipe. BRIEF DESCRIPTION OF DRAWINGS

[0013] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings;

[0014] Figure 1 It is a first axial structure schematic view of a pipe diameter measuring variable diameter measuring device;

[0015] Figure 2 It is a front view structure schematic view of a pipe diameter measuring variable diameter measuring device;

[0016] Figure 3 It is a measurement state schematic view of a pipe diameter measuring variable diameter measuring device;

[0017] Figure 4 It is a rear view structure schematic view of a pipe diameter measuring variable diameter measuring device;

[0018] Figure 5 It is a second axial structure schematic view of a pipe diameter measuring variable diameter measuring device.

[0019] The figure label explanation: 1, elastic open ring; 2, handle; 3, first installation groove; 4, second installation groove; 5, first outlet groove; 6, second outlet groove; 7, third installation groove; 8, first leather measuring tape; 9, second leather measuring tape; 10, straight-through groove; 11, closed cover plate; 12, round head block. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the present application.

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship-movement between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly. The connection can be direct connection or indirect connection.

[0023] Please refer to Figures 1-5 As shown in the figure, a variable-diameter measuring device for pipe diameter measurement comprises an elastic open ring 1 made of elastic material; two symmetrical round head blocks 12 are fixedly connected at the two ends of the elastic open ring 1; a first installation groove 3 and a second installation groove 4 are formed on one side of the round head block 12; a first outlet groove 5 and a second outlet groove 6 are respectively formed in the first installation groove 3 and the second installation groove 4; a second leather measuring tape 9 is inserted into the first installation groove 3; the end of the second leather measuring tape 9 is fixed in the second installation groove 4 by sliding through the first outlet groove 5 and the second outlet groove 6; an accurate inner circle is formed by the elastic open ring 1 and the round head block 12, and a circular arc butt joint position is formed at the first outlet groove 5 and the second outlet groove 6, so that when the round head block 12 is pushed against the outer surface of the drain pipe to open, the two round head blocks 12 are away from each other to stretch the second leather measuring tape 9, and then the second leather measuring tape 9 is driven by the two round head blocks 12 to fully cover the outer surface of the drain pipe, so that the value of the gap between the stretched second leather measuring tape 9 and the two round head blocks 12 can be observed through the round head block 12 made of transparent material, thereby completing the measurement of the circumference of the drain pipe, and then the diameter can be calculated according to the circumference. This method can be used to quickly measure the circumference of the drain pipe with one hand, and then the diameter can be calculated. It can also be used to quickly measure different diameter drain pipes.

[0024] The other side of the round head block 12 is symmetrically provided with a third installation slot 7; the third installation slot 7 is communicated with a straight-through slot 10; the first leather measuring tape 8 is inserted into the third installation slot 7; one end of the first leather measuring tape 8 is slid through the straight-through slot 10 and fixed in the third installation slot 7; the distance between the two round head blocks 12 is measured by the first leather measuring tape 8; when the two round head blocks 12 are moved to the vicinity of the diameter of the drainpipe and moved several times, the maximum value displayed by the first leather measuring tape 8 can be obtained.

[0025] The round head block 12 is detachably sleeved with a closing cover plate 11 corresponding to the first installation slot 3, the second installation slot 4 and the third installation slot 7; the first leather measuring tape 8 and the second leather measuring tape 9 installed in the first installation slot 3, the second installation slot 4 and the third installation slot 7 are limited by the closing cover plate 11, so that the structure is not separated during use and all functions can be safely used.

[0026] The two round head blocks 12 are in surface contact, so that the inner surface of the two round head blocks 12 and the elastic opening ring 1 becomes a complete circle, thereby making the measurement of the drainpipe more accurate.

[0027] The first outlet slot 5 and the second outlet slot 6 are attached to the inner surface of the elastic opening ring 1; when the second leather measuring tape 9 is pulled out, it can be closely attached to the outer surface of the drainpipe, thereby keeping the measurement accuracy accurate.

[0028] The outer surface of the elastic opening ring 1 is fixedly connected with a handle 2; the handle 2 is fixed on the outer surface of the elastic opening ring 1 at the position of the symmetric round head block 12, so that one hand can hold the handle 2 to move the elastic opening ring 1 and change the use direction, thereby conveniently inserting the outer surface of the drainpipe to measure the outer diameter and then calculating the diameter of the drainpipe.

[0029] The outer surface of the elastic opening ring 1 is fixedly connected with two handles 2; the two handles 2 are symmetrically fixed to the outer surface of the elastic opening ring 1; when the two handles 2 are held by both hands and pulled outward, the elastic opening ring 1 is expanded away from each other from the round head block 12 in the opening direction, and the second leather measuring tape 9 is pulled out, so that it can be wrapped around the outer surface of the drainpipe until the drainpipe is completely wrapped, at which time the reading of the second leather measuring tape 9 is the circumference of the drainpipe; according to the circumference calculation formula, the diameter can be inversely calculated, thereby calculating the diameter of the measured drainpipe; then when measuring the wall thickness of the drainpipe, the two round head blocks 12 can be sleeved on the wall of the drainpipe, at which time the two round head blocks 12 are away from each other, the first leather measuring tape 8 and the second leather measuring tape 9 are stretched and expanded, thereby measuring the wall thickness of the drainpipe.

[0030] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate way in one or more embodiments or examples.

[0031] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A variable diameter measuring device for pipe diameter measurement, characterized in that; The device includes an elastic open ring (1) made of elastic material; round head blocks (12) are symmetrically fixed at both ends of the elastic open ring (1); a first mounting groove (3) and a second mounting groove (4) are provided on one side of the round head block (12); a first outlet groove (5) and a second outlet groove (6) are respectively provided in the first mounting groove (3) and the second mounting groove (4); a second measuring tape (9) is inserted into the first mounting groove (3); the end of the second measuring tape (9) slides through the first outlet groove (5) and the second outlet groove (6) and is fixed in the second mounting groove (4).

2. The pipe diameter measuring device according to claim 1, characterized in that: The other side of the round-headed block (12) is symmetrically provided with a third mounting groove (7); a straight groove (10) is provided in the third mounting groove (7); a first leather tape measure (8) is inserted into the third mounting groove (7); one end of the first leather tape measure (8) slides through the straight groove (10) and is fixed in the third mounting groove (7).

3. The pipe diameter measuring device according to claim 1, characterized in that: The round head block (12) is detachably fitted with a sealing cover plate (11) corresponding to the first mounting groove (3), the second mounting groove (4) and the third mounting groove (7).

4. The pipe diameter measuring device according to claim 1, characterized in that: The round-headed blocks (12) are in surface contact with each other.

5. The pipe diameter measuring device according to claim 1, characterized in that: The first outlet groove (5) and the second outlet groove (6) fit against the inner surface of the elastic opening ring (1).

6. The pipe diameter measuring device according to claim 1, characterized in that: A handle (2) is fixed to the outer surface of the elastic open ring (1); the handle (2) is fixed at the position of the symmetrical round head block (12) on the outer surface of the elastic open ring (1).

7. The pipe diameter measuring device according to claim 1, characterized in that: Two handles (2) are fixed to the outer surface of the elastic open ring (1); the handles (2) are symmetrically fixed to the outer surface of the elastic open ring (1).

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