CN201392156Y - Measuring tool - Google Patents

Abstract

The utility model discloses a measuring tool which adopts a flat and straight section. Open grooves are formed at one end or two ends of the flat and straight section; the groove distances of the open grooves are gradually reduced from the open end to the inside; and in addition, the groove distances are marked above and/or under the open grooves. The utility model adopts a ruler structure or a hollow pipeline structure, and the thickness or the outer diameter of objects to be measured is directly obtained through the groove distance reading after the objects to be measured are clamped in the open grooves. The utility model has the advantages of simple manufacture, low integral manufacture cost, convenient use, direct-viewing reading and high precision, and can meet the measuring requirement of objects to be measured in various shapes.

Description

A kind of survey instrument

Technical field

The utility model relates to the survey instrument technical field.

Background technology

In the instrument of existing measurement thickness, vernier caliper, milscale etc. are arranged, these toolmakerses skills all require relatively more accurate, and price is also higher relatively, and generally all needs through can correctly using after the training.

In the instrument of external diameters such as existing measurement tubing, pipe fitting, vernier caliper is arranged, enclose chi etc., these instruments also exist manufacture process requirement relatively more accurate, and price is higher relatively partially, and also is to need through can correctly using after the training.

In addition, also having a kind of outside calipers, is after having blocked size on the measurement thing, uses the vernier caliper measurement foot spacing again, uses relatively complicated.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, and a kind of survey instrument simple and convenient and swift, that overall cost is low that uses is provided, and both can measure thickness, can measure external diameter again.

Above-mentioned purpose of the present utility model is achieved by following scheme:

Survey instrument of the present utility model adopts a flat segments, and the one or both ends of this flat segments are provided with open recess, and the slot pitch of this open recess reduces inward gradually from openend, and the top of open recess and/or below mark has slot pitch.During measurement, determinand is snapped in the open recess, because the slot pitch of this open recess is the design that reduces gradually inward from openend, thereby the determinand that has guaranteed various outer diameter or thickness can snap in this open recess, and the slot pitch reading of the top of direct corresponding open recess and/or below mark can obtain the thickness or the external diameter of determinand then.

Determinand is snapped in the groove for convenience, the openend of above-mentioned survey instrument open recess can also be provided with the importing fillet, and such design can also protect the determinand surface can not come to harm.

Survey instrument of the present utility model can be the ruler structure, similar with common ruler, one or both ends at ruler are provided with open recess, the slot pitch of open recess reduces inward gradually from openend, and above the open recess and/or below mark slot pitch is arranged, during measurement determinand snapped in the direct corresponding groove of open recess can obtain determinand apart from reading thickness or external diameter.

Survey instrument of the present utility model can also be the hollow pipeline structure, this hollow pipeline is non-totally-enclosed hollow pipeline, the one or both ends of pipeline section are provided with open section, and the top of open section and/or below are marked with the hollow aperture, and the hollow aperture of open section reduces toward the center gradually from end face.During measurement, determinand is inserted from open section, can obtain the external diameter of determinand according to the hollow aperture reading on the open section.

Compared with prior art, the utlity model has following beneficial effect:

1. survey instrument of the present utility model can be selected ruler structure or hollow pipeline structure, thereby can satisfy the measurement requirement of difformity determinand;

2. its open recess of survey instrument of the present utility model is provided with the importing fillet, not only makes things convenient for determinand to snap in open recess, and avoids the surface of determinand to come to harm;

3. the open recess partial design that survey instrument of the present utility model will be used to snap in determinand reduces from openend inward gradually for its slot pitch, thereby makes a survey instrument of the present utility model just can finish the measurement of the determinand of many different-thickness various outer diameters;

4. survey instrument manufacturing of the present utility model is simple, and overall cost is low, and is easy to use, and reading is directly perceived, the precision height, and do not need special training and learning to use.

Description of drawings

Fig. 1 is the user mode synoptic diagram of ruler structure measurement instrument;

Fig. 2 is an A place partial enlarged drawing among Fig. 1;

Fig. 3 is the user mode synoptic diagram of hollow pipeline structure measurement instrument;

Fig. 4 is a B place partial enlarged drawing among Fig. 3;

Wherein, 1 is determinand, and 2 is survey instrument, and 3 is determinand thickness, and 4 is the determinand external diameter.

Embodiment

Embodiment 1 ruler structure measurement instrument

As shown in Figure 1, it is shaped to the ruler shape survey instrument of present embodiment, two ends at ruler are provided with open recess, the slot pitch of both ends open groove all reduces inward gradually from openend, and the openend of both ends open groove is equipped with the importing fillet, the upper and lower of one end opening groove has all marked slot pitch, the top mark of other end open recess has slot pitch, during measurement determinand is snapped in open recess, from the slot pitch reading partial enlarged drawing of Fig. 2 as can be seen, after the determinand card was good, directly corresponding groove can obtain the thickness of determinand apart from reading.

The survey instrument of embodiment 2 hollow pipeline structures

As shown in Figure 3, it is shaped to hollow pipeline the survey instrument of present embodiment, two ends at hollow pipeline are equipped with open section, the above and below of open section all is marked with the hollow aperture, the hollow aperture reduces toward the center gradually from end face, and the end face of open section is provided with the importing fillet, during measurement determinand is close to until determinand and groove from the open section insertion, as can be seen, can obtain the external diameter of determinand according to the hollow aperture reading on the open section from the hollow aperture reading partial enlarged drawing of Fig. 4.

Claims (4)

1, a kind of survey instrument is characterized in that adopting a flat segments, and the one or both ends of this flat segments are provided with open recess, and the slot pitch of described open recess reduces inward gradually from openend, and the top of open recess and/or below mark has slot pitch.

2, survey instrument according to claim 1 is characterized in that the openend of described open recess is provided with the importing fillet.

3, survey instrument according to claim 1 and 2 is characterized in that described survey instrument is the ruler structure.

4, survey instrument according to claim 1 and 2, it is characterized in that described survey instrument is the hollow pipeline section, the hollow aperture of the one or both ends of pipeline section reduces toward the center gradually from end face, the one or both ends of pipeline section also are provided with open section, and the top of open section and/or below are marked with the hollow aperture.

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