Scale type caliper gauge

Abstract

The utility model discloses a scaleplate type caliper which comprises a first measuring arm, a second measuring arm, a first measuring claw, a second measuring claw and a scaleplate mechanism, wherein the second ends of the first measuring arm and the second measuring arm are movably connected; the first measuring claw and the second measuring claw are respectively positioned at the first ends of the first measuring arm and the second measuring arm; the scale mechanism comprises a first fastener, a second fastener and a scale, the second fastener and the first fastener are symmetrically arranged relative to the symmetry axis of the scale type caliper gauge, the second fastener comprises a through groove and a first scale line, the length direction of the through groove is perpendicular to the symmetry axis of the scale type caliper gauge, and the scale is in close fit with the through groove; the first end of the scale is fixedly connected with the first fastener, and the second end is located in the through groove; and when the first measuring claw and the second measuring claw are opened or closed, the second end of the scale synchronously slides in the through groove. The scale-type caliper gauge can measure the size of a to-be-measured part of an irregular to-be-measured workpiece, such as a to-be-measured workpiece with a thick edge, a thin interior, a small opening and a large inner cavity, and the surface of the to-be-measured irregular workpiece cannot be scratched when the scale-type caliper gauge is taken down from the to-be-measured workpiece.

Description

Technical Field

[0001] The utility model belongs to the field of length and thickness measuring tools, in particular to a ruler-type caliper. Background Art

[0002] Existing calipers for measuring length do not have a scale. During measurement, the two measuring claws of the caliper are placed against the workpiece to be measured. The caliper is then removed from the workpiece to measure the distance between the two measuring claws to obtain the measured dimensions of the workpiece. However, this method is limited in that the two measuring claws must be stationary during the caliper removal process. Once they move, accurate measurements of the workpiece's measured portion cannot be obtained. Only the overall planar dimensions or circular axis dimensions of workpieces with unobstructed edges can be measured. Irregular workpieces, such as those with thick edges and thin interiors, or those with small openings and large cavities, cannot be measured. Furthermore, for such irregular workpieces, the two measuring claws must be pulled outward while remaining stationary when the caliper is removed, which can easily scratch the surface of the irregular workpiece. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a ruler-type caliper, which includes:

[0004] A first measuring arm and a second measuring arm having identical structures, wherein the second ends of the first measuring arm and the second measuring arm are movably connected;

[0005] A first measuring claw and a second measuring claw are respectively located at the first ends of the first measuring arm and the second measuring arm, the first measuring claw and the second measuring claw are open in a measuring state and closed in a non-measuring state;

[0006] Ruler mechanism;

[0007] in,

[0008] The scale mechanism includes:

[0009] The first fastener is provided on the first measuring arm and is fixedly hingedly connected to the first measuring arm.

[0010] The second fastener is provided on the second measuring arm and is fixedly hingedly connected to the second measuring arm. The second fastener and the first fastener are symmetrically arranged relative to the symmetry axis of the ruler-type caliper. The second fastener includes a through slot and a first scale line. The length direction of the through slot is perpendicular to the symmetry axis of the ruler-type caliper.

[0011] A ruler tightly fitted with the through slot, wherein the first end of the ruler is fixedly connected to the first fastener and the second end is located in the through slot, and the second scale line of the ruler is parallel to the first scale line;

[0012] When the first measuring claw and the second measuring claw are opened or closed, the second end of the ruler slides synchronously in the through slot.

[0013] Furthermore, the first fastener is a screw.

[0014] Furthermore, the second fastener is a half-wrapped screw.

[0015] Furthermore, the scale is a cylindrical scale or a semi-cylindrical scale.

[0016] Furthermore, the through groove is a semicircular through groove.

[0017] Furthermore, the first end of the first scale line extends to the surface of the semicircular through groove.

[0018] Furthermore, the minimum scale value of the ruler is 0.5 mm.

[0019] Furthermore, the second fastener also includes a prompt mark for indicating the position of the first scale line.

[0020] Furthermore, the prompt mark is a triangular prompt mark, the top of which is connected to the second end of the first scale line.

[0021] Furthermore, the prompt mark is an A-shaped prompt mark, the top of which is connected to the second end of the first scale line.

[0022] Compared with the existing technology, the ruler-type caliper provided by the utility model can measure the dimensions of the measured parts of irregular workpieces, such as workpieces with thick edges and thin insides, or workpieces with small mouths and large inner cavities, such as the wall thickness of glass bottles, the inner diameter of cans, the thickness of furniture panels, the thickness of the middle part of I-beams, etc. It will not scratch the surface of the irregular workpiece when it is removed from the workpiece, has high measurement efficiency, and a wide measurement range. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure shows the overall structure of the ruler-type caliper according to the embodiment of the present utility model;

[0024] Figure 2 A schematic structural diagram of a second fastener in a ruler-type caliper according to an embodiment of the present utility model is shown;

[0025] Description of main reference numerals:

[0026] 11: first measuring arm, 12: second measuring arm, 21: first measuring claw, 22: second measuring claw, 3: scale mechanism, 31: first fastener, 32: second fastener, 33: scale, 321: through slot, 322: first scale line, 323: prompt mark. DETAILED DESCRIPTION

[0027] The following describes in detail the specific embodiments of the present invention. It should be understood that the embodiments of the present invention are not limited to the embodiments shown in the accompanying drawings, and the scope of protection of the present invention is not limited by the specific embodiments. The terms "first," "second," and similar terms used in the present invention do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, terms such as "a," "an," or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Unless otherwise expressly stated, throughout the specification and claims, the term "comprise" or variations such as "comprising" or "including" will be understood to include the elements or components stated, without excluding other elements or components. Terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Unless otherwise defined, the meanings of all technical terms and scientific terms used in this utility model are the same as those commonly understood by ordinary technicians in the field. In addition, the meanings of the technical terms and scientific terms used in this utility model should be interpreted as having the same meanings as the corresponding terms defined in commonly used technical manuals, and should not be interpreted as having idealized or excessive formal meanings, unless explicitly defined in this utility model.

[0029] Figure 1 The schematic diagram of the overall structure of the ruler-type caliper according to the embodiment of the utility model is shown. Figure 1 The ruler-type caliper includes: a first measuring arm 11 and a second measuring arm 12 with the same structure, a first measuring claw 21 and a second measuring claw 22 located at the first ends of the first measuring arm 11 and the second measuring arm 12 respectively, a ruler mechanism 3, and the second ends of the first measuring arm 11 and the second measuring arm 12 are movably connected, so that the first measuring claw 21 and the second measuring claw 22 are open in the measuring state and closed in the non-measuring state, and the claw tips of the first measuring claw 21 and the second measuring claw 22 are in contact when closed.

[0030] The scale mechanism 3 includes: a first fastener 31, which is provided on the first measuring arm 11 and is fixedly hinged to the first measuring arm 11 (i.e., it can only rotate but cannot move along the symmetry axis of the scale caliper or in a direction perpendicular to the symmetry axis of the scale caliper); a second fastener 32, which is provided on the second measuring arm 12 and is fixedly hinged to the second measuring arm 12. The second fastener 32 is symmetrically arranged with the first fastener 31 relative to the symmetry axis of the scale caliper. The second fastener 32 includes a through slot 321, a first scale line 322 (see Figure 2 , Figure 2 (See the schematic diagram of the structure of the second fastener 32 in a ruler-type caliper according to an embodiment of the present invention.) The length of the through-slot 321 is perpendicular to the axis of symmetry of the ruler-type caliper. A ruler 33 has a first end fixedly connected to the first fastener 31 and a second end positioned within the through-slot 321. The ruler 33 fits snugly within the through-slot 321, and the first scale line 322 is parallel to the second scale line of the ruler 33. When the first and second measuring jaws 21, 22 are opened or closed, the second end of the ruler 33 slides synchronously within the through-slot 321.

[0031] Specifically, the first fastener 31 is a screw. Those skilled in the art should understand that the first fastener 31 can also be other fasteners, and the present invention does not limit this.

[0032] Specifically, the second fastener 32 is a half-wrapped screw. Those skilled in the art should understand that the second fastener 32 can also be other fasteners, and the present invention does not limit this.

[0033] Specifically, the minimum scale value of the scale 33 is 0.5 mm.

[0034] Specifically, for the convenience of processing, the scale 33 is a cylindrical scale or a semi-cylindrical scale.

[0035] Furthermore, the through groove 321 is a semicircular through groove.

[0036] Specifically, in order to make it more convenient for measurement personnel to read the readings during measurement, the first end of the first scale line 322 extends to the surface of the semicircular through groove.

[0037] Specifically, the second fastener 32 further includes a prompt mark 323 for indicating the position of the first scale line 322 .

[0038] Furthermore, the prompt mark 323 is a triangular prompt mark, the top of which is connected to the second end of the first scale line 322 .

[0039] Furthermore, the prompt mark 323 is an A-shaped prompt mark, and the top end of the prompt mark is connected to the second end of the first scale line 322 .

[0040] When measuring with the ruler-type caliper provided by the present invention, the two measuring claws 21 and 22 are first pressed against the object to be measured, and then the scale on the ruler 33 is noted. At this time, the ruler-type caliper is removed and restored to the previous scale position. The distance between the two measuring claws 21 and 22 is measured with a steel ruler or other measuring tool to obtain the size of the object to be measured.

[0041] See also Figure 1 The ruler-type caliper provided by the present invention takes a ruler-type external caliper as an example. Those skilled in the art should understand that the ruler-type caliper provided by the present invention can also be a ruler-type internal caliper.

[0042] In summary, the ruler-type caliper provided by the present invention is provided with a scale mechanism including a first fastener 31, a second fastener 32, and a ruler 33. The second fastener 32 includes a through slot 321 and a first scale mark 322. The length of the through slot 321 is perpendicular to the axis of symmetry of the ruler-type caliper. The first end of the ruler is fixedly connected to the first fastener 31, and the second end is located in the through slot 321. The ruler 33 is tightly fitted with the through slot 321, and the first scale mark 322 is parallel to the second scale mark of the ruler 33. When measuring, the two measuring jaws 21 and 22 are first pressed against the object to be measured, and then the scale on the ruler 33 is noted. At this time, the ruler-type caliper is removed and the scale is restored to the previous position. The distance between the two measuring jaws 21 and 22 is measured with a steel ruler or other measuring tool to obtain the size of the object to be measured. The ruler-type caliper provided by the utility model can measure the dimensions of the measured part of an irregular workpiece, such as a workpiece with a thick edge and a thin interior, or a workpiece with a small mouth and a large interior, such as the wall thickness of a glass bottle, the inner diameter of a can, the thickness of a furniture plate, the thickness of the middle part of an I-beam, etc. When removed, the two measuring claws 21 and 22 can be closed and then pulled outward without scratching the surface of the irregular workpiece to be measured. The utility model has low cost, simple operation, high measurement efficiency, and a wide measurement range.

[0043] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the present invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the present invention and various options and modifications. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. Ruler type caliper, characterized in that: include: A first measuring arm (11) and a second measuring arm (12) having the same structure, wherein the second ends of the first measuring arm (11) and the second measuring arm (12) are movably connected; a first measuring claw (21) and a second measuring claw (22) respectively located at the first ends of the first measuring arm (11) and the second measuring arm (12), wherein the first measuring claw (21) and the second measuring claw (22) are open in a measuring state and closed in a non-measuring state; scale mechanism (3); in, The scale mechanism (3) comprises: A first fastener (31) is provided on the first measuring arm (11) and is fixedly hingedly connected to the first measuring arm (11). The second fastener (32) is provided on the second measuring arm (12) and is fixedly hingedly connected to the second measuring arm (12). The second fastener (32) and the first fastener (31) are symmetrically arranged relative to the symmetry axis of the ruler-type caliper. The second fastener (32) includes a through slot (321) and a first scale line (322). The length direction of the through slot (321) is perpendicular to the symmetry axis of the ruler-type caliper. a ruler (33) tightly fitting with the through slot (321), wherein a first end of the ruler (33) is fixedly connected to the first fastener (31), a second end of the ruler (33) is located in the through slot (321), and a second scale line of the ruler (33) is parallel to the first scale line (322); When the first measuring claw (21) and the second measuring claw (22) are opened or closed, the second end of the scale (33) slides synchronously in the through slot (321).

2. The ruler-type caliper according to claim 1, characterized in that: The first fastener (31) is a screw.

3. The ruler-type caliper according to claim 2, characterized in that: The second fastener (32) is a half-wrapped screw.

4. The ruler-type caliper according to claim 3, characterized in that: The scale (33) is a cylindrical scale or a semi-cylindrical scale.

5. The ruler-type caliper according to claim 4, characterized in that: The through groove (321) is a semicircular through groove.

6. The ruler-type caliper according to claim 5, characterized in that: The first end of the first scale line (322) extends to the surface of the semicircular through groove (321).

7. The ruler-type caliper according to any one of claims 2 to 6, characterized in that: The minimum scale value of the ruler (33) is 0.5 mm.

8. The ruler-type caliper according to claim 7, characterized in that: The second fastener (32) further includes a prompt mark (323) for prompting the position of the first scale line (322).

9. The ruler-type caliper according to claim 8, characterized in that: The prompt mark (323) is a triangular prompt mark, the top end of which is connected to the second end of the first scale line (322).

10. The ruler-type caliper according to claim 8, characterized in that: The prompt mark (323) is an A-shaped prompt mark, the top end of which is connected to the second end of the first scale line (322).

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