A tube measuring instrument

Abstract

This utility model discloses a pipe measuring instrument, including a reference ruler and a side ruler. One end of the side ruler is movably connected to the reference ruler, and both the side ruler and the reference ruler are strip-shaped. The side ruler is equipped with a vernier measuring component for measuring the pipe diameter. The angle between the reference ruler and the side ruler is adjustable, allowing for the measurement of both the straight length and the oblique angle of the pipe. The vernier measuring component also enables faster measurement of the pipe diameter. Therefore, this utility model is portable and multifunctional.

Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, and more specifically, to a tube measuring instrument. Background Technology

[0002] With urban development, municipal water and sewage pipe networks are constantly being upgraded and renovated. Before laying the pipes, the splicing ends need to be inspected, such as the pipe diameter and flatness. There are generally two methods for splicing pipes: one uses pipe sections, where two pipes are fixed by inserting them into the ends of the same section. In this case, the dimensions of the socket and spigot need to be measured to meet the requirements of the selected rubber rings; the other uses a welding machine, where two pipes are welded together, but this requires a high degree of flatness at the pipe joint ends. Therefore, there is an urgent need for a portable and easy-to-operate multi-functional pipe measuring instrument. Utility Model Content

[0003] The purpose of this utility model is to provide a tube measuring instrument to solve the above-mentioned problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A tube measuring instrument includes a reference ruler and a side ruler, one end of which is movably connected to the reference ruler, and both the side ruler and the reference ruler are strip-shaped.

[0006] The side ruler is equipped with a vernier measuring component for measuring pipe diameter.

[0007] Preferably, the side ruler is provided with a groove, the groove extends along the length of the side ruler, and a limiting strip of the same length as the groove is provided on the inner wall of the groove;

[0008] The vernier measuring assembly includes an adjusting column, a connector, and a scale block. One end of the adjusting column is provided with a connecting rod, which passes through a slide groove and is threadedly connected to the connector. The scale block is detachably connected to the other end of the connector opposite the connecting rod.

[0009] Preferably, when the side ruler is folded into the standard ruler, the side of the side ruler relative to the standard ruler is set as the inner side, and the other side opposite to the inner side is set as the outer side. The standard block is installed on the inner side of the side ruler, and the adjusting column is installed on the outer side of the side ruler.

[0010] Preferably, the marker block is configured as a right-legged triangle or a right-angled trapezoid, and one of the right-angled sides of the marker block is detachably connected to the connector.

[0011] Preferably, the connector has a polygonal groove at one end relative to the standard block, and the standard block has an insert block that matches the polygonal groove on one side relative to the connector, and a permanent magnet is provided on the insert block.

[0012] Preferably, the side of the reference ruler and / or side ruler with graduation lines is set as the measuring end, and the measuring end is made of wood.

[0013] Preferably, a compression spring is provided between the connector and the limiting strip. The compression spring is sleeved on the connecting rod, with one end abutting against the connector and the other end abutting against the limiting strip.

[0014] The beneficial effects of this utility model are: the angle between the standard ruler and the side ruler is adjustable, which can measure both the straight length of the pipe and the oblique angle of the pipe. The vernier measuring component can also measure the pipe diameter more quickly. Therefore, this utility model has the characteristics of being easy to carry and multifunctional. Attached Figure Description

[0015] Figure 1 Schematic diagram of a pipe measuring instrument Figure 1 ;

[0016] Figure 2 Schematic diagram of a pipe measuring instrument Figure 2 ;

[0017] Figure 3 Schematic diagram of a pipe measuring instrument Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the vernier measurement assembly;

[0019] In the diagram: 1. Reference ruler; 11. Limiting strip; 2. Side ruler; 3. Vernier measuring assembly; 31. Adjusting column; 32. Connector; 33. Marker block; 34. Compression spring. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] according to Figure 1-4The described pipe measuring instrument includes a reference ruler 1 and a side ruler 2. One end of the side ruler 2 is hinged to one end of the reference ruler 1 via a pivot pin. The rotation angle between the side ruler 2 and the reference ruler 1 is 0-90°. Both the side ruler 2 and the reference ruler 1 are strip-shaped. A groove is provided on one side of the reference ruler. When the angle between the side ruler 2 and the reference ruler 1 is 0°, the side ruler 2 is parallel to the reference ruler 1 and retracts into the groove. A sliding groove is provided along the length of the side ruler 2, and a vernier measuring component 3 for measuring the pipe diameter is provided in the sliding groove. The angle between the reference ruler and the side ruler 2 is adjustable, allowing for the measurement of both the straight length and the oblique angle of the pipe. The vernier measuring component 3 also enables faster measurement of the pipe diameter.

[0024] according to Figure 1-4 As shown, a limiting strip 11 of equal length is provided on the inner wall of the slide groove. The vernier measuring assembly 3 includes an adjusting column 31, a connecting head 32, and a scale block 33. A connecting rod is provided at one end of the adjusting column 31, and the connecting rod passes through the slide groove and is threadedly connected to the connecting head 32. The scale block 33 is detachably connected to the other end of the connecting head 32 opposite to the connecting rod. When the side ruler 2 is folded into the standard ruler, the side of the side ruler 2 opposite to the standard ruler is designated as the inner side, and the other side opposite to the inner side is designated as the outer side. The scale block 33 is installed on the inner side of the side ruler 2, and the adjusting column 31 is installed on the outer side of the side ruler 2. A compression spring 34 is provided between the connecting head 32 and the limiting strip 11. The compression spring 34 is sleeved on the connecting rod, with one end abutting against the connecting head 32 and the other end abutting against the limiting strip 11.

[0025] according to Figure 1-4 As shown, the label block 33 is configured as a right-legged triangle or a right-angled trapezoid, and one of the right-angled sides of the label block 33 is detachably connected to the connector 32. In this application, the label block 33 is configured as a right-angled trapezoid, according to... Figure 4 As shown, the upper base length of the marker block 33 is less than the lower base length, and the lower base of the marker block 33 is inserted into the connector 32. The connector 32 has a polygonal groove at one end opposite to the marker block 33, and the marker block 33 has an insert that matches the polygonal groove on one side opposite to the connector 32. A permanent magnet is provided on the insert.

[0026] according to Figure 1-4 As shown, the measuring end is located on the side of the reference ruler 1 and the side ruler 2 with the scale lines. The measuring end is made of wood. When it is necessary to check the flatness of the pipe end face, the wood absorbs water. By applying paint to the end face of the pipe, the flatness of the pipe end face can be checked more intuitively. It can also be marked to avoid the problem of repeated testing when multiple pipes are together.

[0027] according to Figure 1-4As shown, the vernier measuring component 3 is used as follows: When the side ruler 2 is retracted into the reference ruler 1, the adjusting column 31 is rotated forward to reduce the distance between it and the connector 32, so that the scale block 33 can also retract into the groove. When the side ruler 2 is extended, the adjusting column 31 is rotated in the opposite direction to increase the distance between it and the connector 32. Under the action of the compression spring 34, the scale block 33 protrudes out of the groove. Because the scale block 33 and the connector 32 are inserted together and reinforced by a permanent magnet, when measuring the inner diameter of the tube, the direction of the inclined surface on the scale block 33 is adjusted so that the inclined surfaces of the two scale blocks 33 are set in opposite directions, i.e., inward. When measuring the outer diameter of the tube, the inclined surface on the scale block 33 is adjusted to be set in the opposite direction, i.e., outward.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tube measuring instrument, characterized in that: It includes a reference ruler (1) and a side ruler (2), one end of which is movably connected to the reference ruler (1), and both the side ruler (2) and the reference ruler (1) are strip-shaped; The side ruler (2) is equipped with a vernier measuring component (3) for measuring the pipe diameter.

2. The tube measuring instrument according to claim 1, characterized in that: The side ruler (2) is provided with a sliding groove, which extends along the length of the side ruler (2), and a limiting strip (11) of the same length is provided on the inner wall of the sliding groove. The vernier measuring assembly (3) includes an adjusting column (31), a connector (32) and a scale block (33). One end of the adjusting column (31) is provided with a connecting rod, which passes through a groove and is threadedly connected to the connector (32). The scale block (33) is detachably connected to the other end of the connector (32) opposite to the connecting rod.

3. The tube measuring instrument according to claim 2, characterized in that: When the side ruler (2) is folded into the reference ruler (1), one side of the side ruler (2) relative to the reference ruler (1) is set as the inner side, and the other side opposite to the inner side is set as the outer side. The standard block (33) is installed on the inner side of the side ruler (2), and the adjusting column (31) is installed on the outer side of the side ruler (2).

4. The tube measuring instrument according to claim 3, characterized in that: The marker block (33) is set as a right-legged triangle or a right-angled trapezoid, and one of the right-angled sides of the marker block (33) is detachably connected to the connector (32).

5. The tube measuring instrument according to claim 4, characterized in that: The connector (32) has a polygonal groove at one end relative to the standard block (33), and the standard block (33) has an insert block that matches the polygonal groove on one side relative to the connector (32), and a permanent magnet is provided on the insert block.

6. The tube measuring instrument according to claim 5, characterized in that: The measuring end is set on the side of the reference ruler (1) and / or side ruler (2) with scale lines, and the measuring end is made of wood.

7. The tube measuring instrument according to claim 6, characterized in that: A compression spring (34) is provided between the connector (32) and the limiting strip (11). The compression spring (34) is sleeved on the connecting rod, with one end abutting against the connector (32) and the other end abutting against the limiting strip (11).

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