A kind of vernier caliper of measuring the irregularity body thickness
Technical field
The utility model relates to a kind of survey instrument of measuring object thickness, especially relates to a kind of vernier caliper of measuring the irregularity body thickness.
Background technology
Vernier caliper is a kind of for the measurer of measuring object length, interior external diameter, container depth.Owing to measure to prepare the exactness height, measure various informatively, so be used widely.
The structure of vernier caliper is generally by the main scale that is provided with scale and be attached on the main scale slidable vernier two parts and form, be provided with movable inboard measuring jaw and outside measuring jaw between main scale and the vernier, interior measuring claw is commonly used to measure internal diameter, and the external pelivimetry pawl is commonly used to measure length and external diameter.The main scale of vernier caliper is unit with the millimeter generally, and 10,20 or 50 lattices are then arranged on the vernier, and according to the difference of lattice, vernier caliper can be divided into ten minutes degree vernier caliper, 20 fens degree vernier calipers, 50 fens degree lattice vernier calipers etc.Tail end at vernier scale is connected with a pit gauge, can be used for measuring flume or the tube the degree of depth.
Though the vernier caliper purposes is very wide, all need to use in a lot of occasions, but when measuring the thickness of irregularly shaped object, spill object or the body wall thickness measure of certain depth object is arranged for example is as cup wall thickness or bottom thickness, or the thickness of object in uneven thickness, as shell etc.Effectively measure owing to be difficult to the chucking location, therefore existing vernier caliper also can't satisfy the thickness measure requirement to this type objects.
Summary of the invention
Technical problem to be solved in the utility model is, overcome above-mentioned prior art vernier caliper and can not measure the problem of irregularity body thickness, and provide a kind of vernier caliper of measuring the irregularity body thickness, simple in structure, the easy to operate and accuracy of measurement height of this vernier caliper.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of vernier caliper of measuring the irregularity body thickness, partly form by the main scale that is provided with scale and at the vernier two that main scale slides, be provided with inboard measuring jaw and outside measuring jaw between described main scale and the vernier, described outside measuring jaw is divided into the fixed amount claw that links to each other with main scale and the activity claw that links to each other with vernier, described fixed amount claw is equipped with the run through groove parallel with the main scale length direction with the centre of activity claw, described two run through on the groove to cooperate respectively and are installed on steel ruler, described two steel rulers are on same straight line, and two steel rulers stretch out and run through groove.
The corresponding end of described two steel rulers is trapezium structure.
Described two to run through being shaped as of the groove medial extremity corresponding with two steel rulers trapezoidal.
Described fixed amount claw compresses steel ruler by the trip bolt of installing thereon.
Described activity claw compresses steel ruler by the trip bolt of installing thereon.
The beneficial effects of the utility model, the utility model is by being installed in the steel ruler on the measuring jaw of the outside, irregularly shaped object to be measured is placed between two steel rulers, thereby make irregularly shaped object to be measured that the sufficient space of laying be arranged, come the two sides of clamping and positioning irregularly shaped object to be measured with two steel rulers, can carry out the measurement of irregularity body thickness, easy to use, and the accuracy of measurement height.
Because the trapezium structure on the steel ruler, the contact area when having guaranteed to measure can increase accuracy when measuring.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, illustrated.
Description of drawings
Fig. 1 is the structural representation of the utility model vernier caliper.
Fig. 2 is the sectional structure synoptic diagram of the utility model fixed amount claw.
Fig. 3 is pack into fixed amount claw sectional structure synoptic diagram behind the steel ruler of the utility model.
Number in the figure explanation: 1, main scale; 2, vernier; 3, inboard measuring jaw; 4, outside measuring jaw; 5, pit gauge; 6, fixed amount claw; 7, activity claw; 8, run through groove; 9, steel ruler; 10, trapezoidal; 11, trapezium structure; 12, trip bolt hole; 13, trip bolt.
Embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to embodiment, structure, feature and the effect thereof according to the vernier caliper of the measurement irregularity body thickness that the utility model proposes, describe in detail as after.
As shown in Figure 1, a kind of vernier caliper of measuring the irregularity body thickness of the utility model is made up of main scale 1, vernier 2, inboard measuring jaw 3, outside measuring jaw 4 and pit gauge 5.
Described main scale 1 is provided with degree of reading scale, and vernier 2 can slide at main scale 1.Inboard measuring jaw 3 and outside measuring jaw 4 are located between main scale 1 and the vernier 2, and pit gauge 5 links to each other with vernier 2 tail ends.
Described outside measuring jaw 4 is divided into fixed amount claw 6 and activity claw 7, fixed amount claw 6 links to each other with main scale 1, activity claw 7 links to each other with vernier 2, described fixed amount claw 6 and the centre of activity claw 7 are equipped with parallel with the main scale 1 length direction groove 8 that runs through, described two run through on the groove 8 to cooperate respectively and are installed on steel ruler 9, described two steel rulers 9 and stretch out and run through groove 8 on same straight line.Steel ruler 9 can be selected narrow, thin type, is convenient for carrying and uses.
As shown in Figures 2 and 3, described two steel rulers, 9 corresponding ends are trapezium structure 11, and the contact area of steel ruler 9 and object under test can increase accuracy when measuring when this trapezium structure had guaranteed to measure.
Described two run through the corresponding medial extremity of groove 8 be shaped as trapezoidal 10, this is trapezoidal to match with the trapezium structure 11 of steel ruler 9, particularly, the trapezium structure 11 of steel ruler 9 can be put into and run through the trapezoidal of groove 8, when not using, can guarantee that steel ruler 9 can firmly place in fixed amount claw 6 or the activity claw 7, come off and be difficult for extracting out.
Be equipped with trip bolt hole 12 on described fixed amount claw 6 and the activity claw 7, trip bolt 13 passes trip bolt hole 12 and compresses steel ruler 9, unclamp trip bolt 13, it is the compacted position of removable steel ruler 9, thereby adjust steel ruler 9 extension elongation on fixed amount claw 6 and activity claw 7, namely return to zero by the movement of steel ruler 9, to adapt to the measurement requirement of various different objects.When not using, trip bolt 13 can be unclamped, with about two steel rulers 9 take out and place, also trapezium structure can be moved to the trapezoidal place in fixed amount claw 6 and the activity claw 7, be tightened.
During measurement, roughly regulate the length of the steel ruler 9 on the left side fixed amount claw 6 as required, measuring jaw portion 6 place's trip bolts 13 are tightened; Moving cursor 2 makes the zero groove of vernier 2 align with a certain integer scale mark, and being equivalent to reading is zero position, and fixedly vernier 2; Regulate the steel ruler 9 on the activity claw 7, make its trapezium structure 11 near the trapezium structure of the steel ruler 9 on the fixed amount claw 6, the trip bolt 13 in the measuring jaw portion 7 that is tightened; Loosen vernier 2, object under test put between two steel rulers 9, the two sides of object under test respectively with steel ruler 9 vertical contacts the at two ends, can carry out survey measurements, and the accuracy of measurement height.
In sum, every the utility model technique scheme content that do not break away from, all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does according to technical spirit of the present utility model.