CN104848756A

CN104848756A - Portable angle ruler

Info

Publication number: CN104848756A
Application number: CN201510314859.4A
Authority: CN
Inventors: 付润久; 孙鹏伦; 侯志钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2015-08-19

Abstract

The invention relates to a measuring ruler, especially a portable angle ruler. The angle ruler comprises a main scale, a graduated scale with scale, and an auxiliary scale. The main scale comprises a first base ruler and a second base ruler. The first base ruler is hinged to one end of the second base ruler, and is hinged to one end of the graduated scale. The second base ruler is equipped with the auxiliary scale. The other end of the graduated scale passes through a chute of the auxiliary scale to be in sliding fit with the chute. The first base ruler, the second base ruler and the graduated scale form an isosceles triangle structure. The isosceles triangle serves as the bottom edge of the isosceles triangle structure. Compared with the prior art, the angle ruler is advantageous in that the angle ruler is portable, is convenient to use, can be folded, is precise in angle measurement, is large in measurement range, can be used for directly reading data, and is low in manufacture cost.

Description

Portable angle chi

Technical field

The present invention relates to a kind of dip stick, particularly a kind of Portable angle chi.

Background technology

Factory's workpiece manufacture process, workpiece greatly enhances limit measurement of angle without practical solid angle chi.Multi-angle medium-and-large-sized long limit geometric type workpiece, need to ensure and manufacture and measuring accuracy, to reach the detection of overall precision requirement when combination workpiece, traditional bevel protractor, the workpiece of multiple angles change, setting-out, can not random predetermined angular in blanking, precision must not ensure the measurement of angle on the long limit of large workpiece.

Original bevel protractor has limitation, and see accompanying drawing 5, long limit workpiece can not continue measurement, and can not fixedly secure due to bevel protractor index dial angle, blade and scale two ends length ratio large, calibration is easily mobile causes measured deviation.

Summary of the invention

Goal of the invention of the present invention is to provide a kind of accurate measurement to greatly enhance the Portable angle chi of limit workpiece angle.

The present invention adopts following technical scheme:

A kind of Portable angle chi, comprise main scale, be with graduated graduated scale, secondary chi, main scale comprises the first base chi and the second base chi, one end of first base chi and the second base chi is hinged, first base chi is hinged with one end of graduated scale, the second base chi is equipped with secondary chi, the other end of graduated scale passes the chute of secondary chi and coordinates with slide, first base chi, the second base chi and graduated scale form isosceles triangular structure, and graduated scale is as the base of isosceles triangular structure.

Adopt the present invention of technique scheme compared with prior art, tool has the following advantages: portably use conveniently, collapsible, and take measurement of an angle accurately, measurement size scope is large, directly can read data, low cost of manufacture.

Preferred version of the present invention is:

First base chi and the hinged central point of graduated scale to be placed in the symmetrical center line of the first base chi and to overlap with the zero graduation of graduated scale; The hinged central point of the second base chi and secondary chi is placed in the symmetrical center line of the second base chi.

First base chi and the isometric setting of the second base chi.

First base chi is hinged with the first additional chi and the second additional chi, the first additional chi and the second additional isometric setting of chi, the first base chi and first adds between chi, the second additional chi three and forms isosceles triangular structure.

First base chi, graduated scale and the first additional chi share a jointed shaft, the jointed shaft of the first base chi and the second base chi are hinged with one end of the second additional chi.

Datum line on secondary chi and the reading limit of rule form plumbness, the secondary chi of straight-line pass at datum line place and the central point of the second base chi jointed shaft.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention 1.

Fig. 2 is the application schematic diagram of Fig. 1.

Fig. 3 is the structural representation of secondary chi.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the structural representation of prior art.

Fig. 6 is the structural representation of embodiment 2.

Embodiment

Embodiment 1

A kind of Portable angle chi, see in accompanying drawing 1 to accompanying drawing 4, figure: the first base chi 1, first bearing pin 2, graduated scale 3, reading limit 301, secondary chi 4, claw 401, datum line 402, second base chi 5, second bearing pin 6.

In the present embodiment, main scale is made up of the first base chi 1 and the second base chi 5, and one end of the first base chi 1 and the second base chi 5 is hinged by the second bearing pin 6, the first base chi 1 is hinged with one end of graduated scale 3 by the first bearing pin 2.

Second base chi 5 is hinged with secondary chi 4, and the other end of graduated scale 3 passes the chute on secondary chi 4 and coordinates with slide, and the claw 401 on secondary chi 4 and the space formed between secondary chi 4 are chutes; (claw 401 is processed from the body of secondary chi 4 by the mode of the right punching press again of the Linear cut) height of chute and the thickness of graduated scale 3 match, be beneficial to the smooth and easy slip of graduated scale 3, first base chi 1, second base chi 5 and be with graduated graduated scale 3 to form isosceles triangular structure, graduated scale 3 is as the base of isosceles triangular structure.Feature of the present invention takes measurement of an angle with the form of isosceles triangle; With the form of isosceles triangle, using isosceles limit (namely the first base chi 1 and the second base chi 5) as measurement limit, use using the graduated scale 3 as base as the form reading value limit, can along with the precision of the increasing raising scale division value of isosceles edge lengths.

First base chi 1 and the hinged central point of graduated scale 3 to be placed in the symmetrical center line of the first base chi 1 and to overlap with the zero graduation of graduated scale 3; Second base chi 5 is placed in the symmetrical center line of the second base chi 5 with the hinged central point of secondary chi 4; First base chi 1 and the isometric setting of the second base chi 5.

First base chi 1, second base chi 5 is connected the rear isosceles triangle type structure forming closed stablity with graduated scale 3 by the first bearing pin 2, second bearing pin 6; First bearing pin 2, second bearing pin 6 can be dismantled; Shown by Fig. 2 is the practical measuring examples of outer corners.

Datum line 402 on secondary chi 4 forms plumbness with the reading limit of rule 3, and the straight line at datum line 402 place is just by the central point of secondary chi 4 and the second base chi 2 jointed shaft.

Assembling process:

First by hinged with the second bearing pin 6 for the head location hole of the first base chi 1, second base chi 5, the first bearing pin 2 is passed through in one end of graduated scale 3 and the first base chi hinged, the other end of graduated scale 3 is inserted in the chute of secondary chi 3 again, just complete assembling.

Use: the relative position of moving sets chi 3 on graduated scale 5, just can read the corresponding scale numerical value of secondary chi 3 scale on graduated scale 5, and this numerical value is exactly the angular values of the angle that the first base chi 1 and the second base chi 2 are formed.

The first base chi 1, second base chi 2 in the present embodiment and rule 3 can free predetermined angulars by the second bearing pin 6; First base chi 1 is connected by the first bearing pin 2 with graduated scale 3, datum line 402 on secondary chi 4 aligns with the scale on rule 3 reading limit 301, by the isosceles triangle formed by the first base chi 1 second base chi 2 and graduated scale 3, complete stable precise angle to measure, structure reaches the object accurately measuring angle.

The invention is not restricted to the structure of secondary chi 4 cited in the present embodiment, as long as there is datum line, be sleeved on the sleeve type structure on secondary chi 4, be also considered as within protection scope of the present invention.

Embodiment 2, see in accompanying drawing 6, figure: the first base chi 1, first bearing pin 2, graduated scale 3, the additional chi 8 of the additional chi of secondary chi 4, second base chi 5, second bearing pin 6, first 7, second.

Be with the difference part of embodiment 1:

The outside (side away from the second base chi 5) of the first base chi 1 is hinged with the first additional chi 7 and the second additional chi 8, first additional chi 7 and the second additional isometric setting of chi 8, forms isosceles triangular structure between the first base chi 1 and the first additional chi 8 three of additional chi 7, second.

First base chi 1, graduated scale 3 and the first additional chi 7 share the second bearing pin 2 and carry out hinged, the second bearing pin 6 that the first base chi 1 and the second base chi 2 share are hinged with one end of the second additional chi 8.

During measurement, the outer side edges of the first additional chi 7 and measured piece are close to, after reading the scale by graduated scale 3, add 60 degree, be optimum angle angle value.

Claims

1. a Portable angle chi, comprise main scale, be with graduated graduated scale, secondary chi, is characterized in that: main scale comprises the first base chi and the second base chi, and one end of the first base chi and the second base chi is hinged, first base chi is hinged with one end of graduated scale, second base chi is equipped with secondary chi, and the other end of graduated scale passes the chute of secondary chi and coordinates with slide, and the first base chi, the second base chi and graduated scale form isosceles triangular structure; Graduated scale is as the base of isosceles triangular structure.

2. Portable angle chi according to claim 1, is characterized in that: the first base chi and the hinged central point of graduated scale to be placed in the symmetrical center line of the first base chi and to overlap with the zero graduation of graduated scale; The hinged central point of the second base chi and secondary chi is placed in the symmetrical center line of the second base chi.

3. Portable angle chi according to claim 1, is characterized in that: the first base chi and the isometric setting of the second base chi.

4. Portable angle chi according to claim 1, it is characterized in that: the first base chi is hinged with the first additional chi and the second additional chi, first additional chi and the second additional isometric setting of chi, the first base chi and the first additional chi, second add between chi three and form isosceles triangular structure.

5. Portable angle chi according to claim 4, is characterized in that: the first base chi, graduated scale and the first additional chi share a jointed shaft, the jointed shaft of the first base chi and the second base chi are hinged with one end of the second additional chi.

6. Portable angle chi according to claim 1, is characterized in that: the reading limit of the datum line on secondary chi and rule forms plumbness, the secondary chi of straight-line pass at datum line place and the central point of the second base chi jointed shaft.