CN212843245U

CN212843245U - Caliper measuring tool

Info

Publication number: CN212843245U
Application number: CN202021243254.3U
Authority: CN
Inventors: 张军
Original assignee: Hebei Leisa Heavy Construction Machinery Co Ltd
Current assignee: Hebei Leisa Heavy Construction Machinery Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-30
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a calliper measuring tool, this calliper measuring tool includes calliper body and the measuring apparatu of acting as go-between, the calliper body includes the pin joint and follows first support arm and the second support arm that the pin joint stretches out, the tip of first support arm and second support arm forms respectively and measures the stabilizer blade, it is used for fixing a position at the both ends of measuring the size to be measured to measure the stabilizer blade, the measuring apparatu of acting as go-between includes the spool and acts as go-between, the spool sets up on the first support arm, the end that stretches out of acting as go-between sets up on the second support arm, act as go-between and be on a parallel with two the. The calliper measuring tool of this disclosure includes the stay wire measuring apparatu, and when first support arm and second support arm opened for the pin joint, the stay wire stretches out the length of adaptation along with open degree, and occupation space is little, and when first support arm and second support arm draw in, the stay wire can retract the spool, is convenient for accomodate.

Description

Caliper measuring tool

Technical Field

The present disclosure relates to the technical field of measuring tools, and particularly relates to a caliper measuring tool.

Background

The existing measuring tools are various in types, wherein the distance size measuring tools comprise a ruler, a tape measure, a vernier caliper, a screw micrometer and the like, and most of the distance size measuring requirements can be met by giving different scale ranges and precision levels.

For a hollow structural part with a simple internal cross section, under the condition of low precision requirement, a ruler and a tape vernier caliper can measure to a certain extent, but for a hollow structural part with a variable cross section or an internal part with an opposite curved surface, the measurement needs to be carried out by means of non-scale caliper measuring tools such as an inner caliper and an outer caliper, the caliper measuring tools are positioned at two ends of the dimension to be measured, and the measurement needs to be assisted by means of other length measuring tools, so that the operation is complicated; or, after the caliper measuring tool is positioned at two ends of the dimension to be measured, the fixed graduated scale is arranged on the caliper to achieve the purpose of direct measurement, but the fixed graduated scale occupies a large space and is not beneficial to containing the caliper measuring tool.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a calliper measuring tool, this calliper measuring tool easy operation, occupation space is little and be convenient for accomodate.

In order to achieve the above object, the present disclosure provides a caliper measuring tool, including a caliper body and a pull wire measuring instrument, the caliper body includes a hinge point and a first support arm and a second support arm extending from the hinge point, ends of the first support arm and the second support arm are respectively formed into a measuring support leg, the measuring support legs are used for being positioned at two ends of a dimension to be measured, the pull wire measuring instrument includes a spool and a pull wire, the spool is arranged on the first support arm, an extending end of the pull wire is arranged on the second support arm, and the pull wire is parallel to a connection line of the ends of the two measuring support legs.

Optionally, the spool is axially adjustably mounted on the first arm and the pull wire is axially adjustably mounted on the second arm.

Optionally, the pull wire measuring instrument further comprises a display, and the display is arranged on the winding reel and used for outputting the extending length of the pull wire.

Optionally, the first arm and the second arm are identical in structure and are symmetrically arranged with respect to a center line passing through the hinge point, and each of the first arm and the second arm includes a bent rod segment configured as the measuring foot, and a line connecting both ends of the bent rod segment passes through the hinge point.

Optionally, the opening directions of the curved bar sections of the first arm and the second arm are arranged back to back with each other; or the opening directions of the bent rod sections of the first support arm and the second support arm are opposite to each other.

Optionally, the bending rod section comprises a first bending rod section and a second bending rod section which are respectively located at two sides of the hinge point, and the curvature radius of the first bending rod section is larger than that of the second bending rod section.

Optionally, the first arm and the second arm each comprise straight rod segments that are cross-connected to form the hinge point, and the measuring foot is disposed at an end of the straight rod segments.

Optionally, the caliper body further includes a rotating shaft, a plurality of adjusting holes are formed in the straight rod section and are arranged at intervals along the axial direction of the straight rod section, and one of the adjusting holes in the first arm is connected with a corresponding adjusting hole in the second arm through the rotating shaft to form the hinge point.

Optionally, the spool includes a mounting portion formed in a cylindrical shape capable of being received in the adjustment hole, the mounting portion having a fastening hole formed thereon, the fastening hole cooperating with a fastener to fix the mounting portion to the straight pole segment.

Optionally, the two pull wire measuring instruments are provided, the caliper body is configured in an X shape, and the pull wire measuring instruments are respectively arranged at both sides of the hinge point.

Through the technical scheme, the caliper body in the embodiment of the disclosure is formed by hinging the first support arm and the second support arm, so that the overall structure is simple; during measurement, only the measurement support legs are required to be positioned at two ends of the dimension to be measured, and then the data of the stay wire measuring instrument is read, so that the operation is simple and convenient; the caliper measuring tool comprises a stay wire measuring instrument, wherein a winding reel of the stay wire measuring instrument is arranged on a first support arm, an extending end of a stay wire is arranged on a second support arm, when the first support arm and the second support arm are opened relative to a hinge point, the stay wire extends out with the opening degree to an appropriate length, and compared with the scheme that a fixed graduated scale is arranged on a caliper body in the related art, the stay wire does not occupy too much space; in addition, when the first support arm and the second support arm are folded, the stay wire can be retracted into the winding reel, so that the winding reel does not occupy too much space and is convenient to store.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a caliper gauge in an embodiment of the present disclosure, wherein bent rod segments are disposed opposite each other;

FIG. 2 is a schematic structural view of a caliper gauge in another embodiment of the present disclosure, wherein the bent rod segments are disposed opposite to each other;

FIG. 3 is a schematic structural view of a caliper gauge according to another embodiment of the present disclosure, wherein the bent rod sections at one end of the caliper body are disposed opposite to each other and the bent rod sections at the other end are disposed opposite to each other;

FIG. 4 is an elevation view of a pull wire gauge in one embodiment of the present disclosure;

fig. 5 is a side view of a pull wire gauge in one embodiment of the present disclosure.

Description of the reference numerals

1. A caliper body; 11. a hinge point; 12. a first support arm; 13. a second support arm; 14. measuring the supporting feet; 151. a first elbow section; 152. a second elbow section; 16. a straight pole section; 161. an adjustment hole; 2. a pull wire measuring instrument; 21. a spool; 22. a pull wire; 23. a display; 24. an installation part; 241. a fastening hole; A. a centerline; B. an axis;

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means "inner and outer" with respect to the contour of the component or structure itself, unless otherwise specified. In addition, it is to be understood that the terms "first," "second," and the like are used for distinguishing one element from another, and are not necessarily order nor importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

The disclosed embodiment provides a caliper measuring tool, as shown in fig. 1 to 5, the caliper measuring tool includes a caliper body 1 and a wire measuring instrument 2, the caliper body 1 includes a hinge point 11 and a first arm 12 and a second arm 13 extending from the hinge point 11, ends of the first arm 12 and the second arm 13 are respectively formed as measuring feet 14, the measuring feet 14 are used for being positioned at two ends of a dimension to be measured, the wire measuring instrument 2 includes a spool 21 and a wire 22, the spool 21 is arranged on the first arm 12, an extending end of the wire 22 is arranged on the second arm 13, and the wire 22 is parallel to a connecting line of the ends of the two measuring feet 14.

The caliper measuring tool can be used for measuring the outer contour and the inner contour of various structural parts, during measurement, the measuring support legs 14 of the first support arm 12 and the second support arm 13 are respectively positioned at two ends with the measured dimension, for example, when the inner diameter of a cylindrical structure needs to be measured, the measuring support legs 14 are respectively positioned in the cylindrical structure along the radial direction, then the extending length of the stay wire 22 at the position is read by the stay wire measuring instrument 2, and then the triangle formed by the stay wire 22 and the hinge point 11 is similar to the triangle formed by the two measuring support legs 14 and the hinge point 11 according to the principle of similar triangles, so that the specific numerical value with the measured dimension can be calculated.

It should be understood that, in one example, the hinge point 11 of the first arm 12 and the second arm 13 of the present disclosure may be disposed at an intermediate position, i.e., the first arm 12 and the second arm 13 are configured as an X-shaped fork-like structure; in another example, the hinge point 11 of the first arm 12 and the second arm 13 of the present disclosure may be disposed at an end position, that is, the first arm 12 and the second arm 13 are configured as a fork-shaped structure of a V-shape, which is not limited by the present disclosure.

Through the technical scheme, the caliper body 1 in the embodiment of the disclosure is formed by hinging the first support arm 12 and the second support arm 13, so that the overall structure is simple; during measurement, the measurement supporting feet 14 are positioned at two ends of the dimension to be measured, and then the data of the stay wire measuring instrument 2 are read, so that the operation is simple and convenient; the caliper measuring tool comprises a stay wire measuring instrument 2, wherein a winding reel 21 of the stay wire measuring instrument 2 is arranged on a first support arm 12, an extending end of a stay wire 22 is arranged on a second support arm 13, when the first support arm 12 and the second support arm 13 are opened relative to a hinge point 11, the stay wire 22 extends out of an appropriate length along with the opening degree, and compared with the scheme that a fixed graduated scale is arranged on a caliper body 1 in the related art, the stay wire 22 does not occupy too much space; in addition, when the first arm 12 and the second arm 13 are folded, the pull wire 22 can be retracted into the spool 21, so that the storage is convenient without occupying too much space.

In the disclosed embodiment, the spool 21 is axially adjustably mounted on the first arm 12 and the cable 22 is axially adjustably mounted on the second arm 13. That is, the wire measuring instrument 2 can be freely moved on the caliper body 1 to be adjusted to a suitable position according to different requirements, for example, the wire measuring instrument 2 can be adjusted to a position convenient for observation according to the shape of the structure to be measured, and for example, for the caliper body 1 configured in an X-shape, the wire measuring instrument 2 can be adjusted to satisfy: the triangle formed by the pulling wire 22 and the hinge point 11 is equal to the triangle formed by the two measuring legs 14 and the hinge point 11, and the reading of the pulling wire 22 is equal to the reading of the dimension to be measured, so as to simplify the calculation process.

Here, the spool 21 and the pull wire 22 may be adjustably disposed on the caliper body 1 in any suitable manner, and in one example, a plurality of adjustment holes 161 (described in detail below) may be provided in the first arm 12 and the second arm 13 to position the spool 21 and the pull wire 22 in different adjustment holes 161 to adjust the position of the pull wire gauge 2. In another example, the first arm 12 and the second arm 13 may be slidably sleeved by providing sleeves at the extending ends of the spool 21 and the pull wire 22, respectively, and the disclosure is not limited thereto.

As shown in fig. 4 and 5, the wire measuring instrument 2 may further include a display 23, the display 23 is disposed on the winding reel 21 and is used for outputting the extending length of the wire 22, and the length of the corresponding dimension to be measured can be calculated according to the extending length of the wire 22. By arranging the display 23, the extending length of the stay wire 22 can be read visually, so that a user can observe and read the length of the stay wire 22 conveniently; the display 23 implemented by the present disclosure may be an instrument display 23, a liquid crystal display 23, or a digital tube display 23, to which the present disclosure is not limited.

As shown in fig. 1 to 3, the first arm 12 and the second arm 13 have the same structure and are symmetrically arranged with respect to a center line a passing through the hinge point 11 to improve the accuracy of measurement; the first arm 12 and the second arm 13 each include a bent rod section, the bent rod section is configured as a measuring foot 14, a connecting line of two ends of the bent rod section passes through the hinge point 11, for some structural members with complex structures, such as an irregular arc shape of an inner contour and an outer contour, or a variable cross section of the inner contour, the bent rod section configured as the measuring foot 14 enables the measuring foot 14 to be positioned on any arc surface, and the application range of the caliper is increased; the connecting line of the two ends of the bent rod section passes through the hinge point 11, namely the two ends of the bent rod section and the hinge point 11 are located on the axis B of the first support arm 12 or the second support arm 13, so that the distance between the two measuring support legs 14 can be determined by the similar triangle principle, and the measuring accuracy is improved.

In the disclosed embodiment, the bending direction of the bent rod segments can be set as desired, and in the first example, as shown in fig. 1, the opening directions of the bent rod segments of the first arm 12 and the second arm 13 are set to be opposite to each other, which is more convenient for measuring the inner contour of the structural member. In a second example, as shown in fig. 2, the opening directions of the bent rod sections of the first arm 12 and the second arm 13 are arranged opposite to each other, which is a structure that facilitates measuring the outer contour of the structural member.

Alternatively, in a third example, as shown in fig. 3, for the caliper body 1 configured in an X-shape, the first arm 12 and the second arm 13 are respectively provided with measuring feet 14 at both ends, and the opening directions of the measuring feet 14 at one end are set back to each other, and the opening directions of the measuring feet 14 at the other end are set opposite to each other, so that the caliper can measure both the inner contour and the outer contour of the structural member.

For the caliper body 1 configured in an X-shape, as shown in fig. 1 to 3, the bent-bar section comprises a first bent-bar section 151 and a second bent-bar section 152 respectively located on both sides of the hinge point 11, the radius of curvature of the first bent-bar section 151 being greater than the radius of curvature of the second bent-bar section 152. Therefore, the two ends of the caliper measuring tool can be used for measuring cambered surface profiles with different curvatures or shapes, and the adaptability of the caliper measuring tool and a structural part to be measured is improved.

In other embodiments of the present disclosure, the radii of curvature of the first and second

curved rod segments

151 and 152 may also be the same to simplify the processing difficulty.

In the disclosed embodiment, and with continued reference to fig. 1-3, the first arm 12 and the second arm 13 each include a straight bar segment 16, the straight bar segments 16 being cross-linked to form the hinge point 11, and the measurement foot 14 being disposed at an end of the straight bar segment 16. Through the cooperation design of straight pole section 16 and curved bar section, can reduce calliper body 1's overall dimension, when calliper body 1 draws in, shared volume is littleer.

Further, the caliper body 1 further includes a rotating shaft, the straight rod section 16 is formed with a plurality of adjusting holes 161 arranged at intervals along an axial direction thereof, and one of the adjusting holes 161 of the first arm 12 is connected with a corresponding adjusting hole 161 of the second arm 13 through the rotating shaft to form the hinge point 11. According to the characteristics of the structural part to be measured, the position of the hinge point 11 can be adaptively adjusted, so that the matching degree of the measuring support leg 14 and the structural part to be measured is higher, and the measuring precision is improved. Also, by adjusting the position of the hinge point 11, the spacing between the measuring feet 14 can be adjusted to increase the measuring dimensional range of the caliper gauge.

In one embodiment of the present disclosure, as shown in fig. 1 to 5, the spool 21 includes a mounting portion 24, the mounting portion 24 is formed in a cylindrical shape that can be received in the adjustment hole 161, a fastening hole 241 is formed in the mounting portion 24, and the fastening hole 241 cooperates with a fastening member to fix the mounting portion 24 to the straight pole segment 16. That is, when mounting, the mounting portion 24 of the spool 21 is inserted from one side of the adjustment hole 161 with one end having the fastening hole 241 exposed from the other side of the adjustment hole 161, and then a fastening member such as a screw, a pin, etc. is fastened to the fastening hole 241 such that the head of the fastening member is stopped at the other side of the adjustment hole 161, so that the mounting portion 24 can be fixed to the straight pole segment 16.

The wire measuring instrument 2 can be mounted in different adjustment holes 161 to adjust the position on the first arm 12 and the second arm 13.

Further, the protruding end of the wire 22 may be provided with a fixing pin for inserting the protruding end of the wire 22 into the adjusting hole 161. In other embodiments of the present disclosure, the protruding end of the pulling wire 22 may be fixed in the adjusting hole 161 by other methods, for example, a binding wire is further connected to the protruding end of the pulling wire 22 for binding in the adjusting hole 161, or a mounting structure similar to the mounting portion 24 of the spool 21 is provided at the protruding end of the pulling wire 22 for fixing in the adjusting hole 161 by a fastener, which is not limited by the present disclosure.

As shown in fig. 3, in one embodiment of the present disclosure, the wire measuring instruments 2 are two, the caliper body 1 is configured in an X-shape, and the wire measuring instruments 2 are respectively disposed at both sides of the hinge point 11. Thus, when any measurement supporting leg 14 on two sides of the hinge point 11 is selected for measurement, the distance between the sizes to be measured can be calculated according to the reading of the wire-pulling measuring instrument 2 on the other side, or the readings of the two wire-pulling measuring instruments 2 can be simultaneously read, then the distance between the sizes to be measured is respectively calculated, and then the average value is taken for the distance, so as to improve the measurement precision.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The caliper measuring tool is characterized by comprising a caliper body (1) and a pull wire measuring instrument (2), wherein the caliper body (1) comprises a hinge point (11) and a first support arm (12) and a second support arm (13) extending from the hinge point (11), the ends of the first support arm (12) and the second support arm (13) are respectively formed into measuring support feet (14), the measuring support feet (14) are used for being positioned at two ends of a dimension to be measured, the pull wire measuring instrument (2) comprises a winding drum (21) and a pull wire (22), the winding drum (21) is arranged on the first support arm (12), the extending end of the pull wire (22) is arranged on the second support arm (13), and the pull wire (22) is parallel to a connecting line of the ends of the measuring support feet (14).

2. Caliper gauge according to claim 1, characterized in that said spool (21) is mounted axially adjustable on said first arm (12) and said pull wire (22) is mounted axially adjustable on said second arm (13).

3. Caliper gauge according to claim 1, characterized in that said pull-wire measuring instrument (2) further comprises a display (23), said display (23) being provided on said reel (21) for outputting the extension of said pull wire (22).

4. Caliper gauge according to any one of claims 1 to 3, characterized in that said first arm (12) and said second arm (13) are structurally identical and are arranged symmetrically with respect to a centre line (a) passing through said hinge point (11), said first arm (12) and said second arm (13) each comprising a bent rod segment configured as said measuring foot (14), the line connecting the two ends of said bent rod segment passing through said hinge point (11).

5. Caliper gauge according to claim 4, characterized in that the opening directions of the bent rod sections of the first arm (12) and the second arm (13) are arranged facing away from each other;

or the opening directions of the bent rod sections of the first support arm (12) and the second support arm (13) are opposite to each other.

6. Caliper gauge according to claim 4, characterized in that said bent rod segments comprise a first bent rod segment (151) and a second bent rod segment (152) located on either side of said hinge point (11), respectively, said first bent rod segment (151) having a radius of curvature greater than the radius of curvature of said second bent rod segment (152).

7. Caliper gauge according to any of claims 1-3, characterized in that said first arm (12) and said second arm (13) each comprise a straight bar section (16), said straight bar sections (16) being cross-connected to form said hinge point (11), said measuring foot (14) being provided at the end of said straight bar section (16).

8. Caliper gauge according to claim 7, characterized in that said caliper body (1) further comprises a rotation shaft, said straight rod segment (16) being formed with a plurality of adjustment holes (161) arranged axially spaced along it, one of said adjustment holes (161) of said first arm (12) being connected to a corresponding adjustment hole (161) of said second arm (13) by said rotation shaft so as to constitute said articulation point (11).

9. Caliper gauge according to claim 8, characterized in that said spool (21) comprises a mounting portion (24), said mounting portion (24) being formed in a cylindrical shape receivable in said adjustment hole (161), said mounting portion (24) having a fastening hole (241) formed thereon, said fastening hole (241) cooperating with a fastening member to fix said mounting portion (24) to said straight bar section (16).

10. Caliper gauge according to claim 1, characterized in that said pull-wire gauges (2) are two, said caliper body (1) being configured in X-shape, said pull-wire gauges (2) being arranged on either side of said hinge point (11).