阅读说明：本技术 角度测量仪 (Angle measuring instrument ) 是由 魏春阳 陈宁娜 肖哲栋 曾静 伍书军 于 2020-04-14 设计创作，主要内容包括：本发明属于测量器具技术领域,具体涉及一种角度测量仪,包括一个扇形的测量面板,所述测量面板正面设有双向刻度线；还包括固定测量杆和活动测量杆,所述固定测量杆固定安装在测量面板的反面,并且与0刻度线重合,所述固定测量杆的两端均设有测量脚；所述活动测量杆通过转轴安装在测量面板的正面,所述转轴位于测量面板的圆心,所述活动测量杆的一端为角度定位杆,所述角度定位杆的顶端设有可双向读数的游标,所述活动测量杆的另一端设有测量脚。本发明操作方便、使用范围广、测量结果准确度高。(The invention belongs to the technical field of measuring instruments, and particularly relates to an angle measuring instrument which comprises a fan-shaped measuring panel, wherein bidirectional scale marks are arranged on the front surface of the measuring panel; the measuring device also comprises a fixed measuring rod and a movable measuring rod, wherein the fixed measuring rod is fixedly arranged on the reverse side of the measuring panel and is superposed with the 0 scale mark, and measuring pins are arranged at two ends of the fixed measuring rod; the movable measuring rod is arranged on the front face of the measuring panel through a rotating shaft, the rotating shaft is located in the circle center of the measuring panel, one end of the movable measuring rod is an angle positioning rod, the top end of the angle positioning rod is provided with a vernier capable of reading in two directions, and the other end of the movable measuring rod is provided with a measuring foot. The invention has the advantages of convenient operation, wide application range and high accuracy of measurement results.)

1. An angle measuring instrument comprises a fan-shaped measuring panel (1), wherein the front surface of the measuring panel (1) is provided with scale marks (10); the method is characterized in that: the measuring device also comprises a fixed measuring rod (2) and a movable measuring rod (3), wherein the fixed measuring rod (2) is fixedly arranged on the reverse side of the measuring panel (1) and is overlapped with the scale mark 0, and measuring pins (4) are arranged at two ends of the fixed measuring rod (2); the movable measuring rod (3) is installed on the front face of the measuring panel (1) through a rotating shaft (7), the rotating shaft (7) is located in the circle center of the measuring panel (1), one end of the movable measuring rod (3) is an angle positioning rod (5), and the other end of the movable measuring rod (3) is provided with a measuring foot (4).

2. The angle measuring instrument according to claim 1, wherein: the measuring range of the scale marks (10) on the front surface of the measuring panel (1) is 90 degrees.

3. The angle measuring instrument according to claim 2, wherein: the front scale mark (10) of the measuring panel (1) is a bidirectional scale, wherein the reading in the clockwise direction is 0-90 degrees, and the reading in the counterclockwise direction is 90-180 degrees.

4. The angle measuring instrument according to claim 3, wherein: the top end of the angle positioning rod (5) is provided with a vernier (6) matched with scale marks (10) on the front surface of the measuring panel (1), and the front surface of the vernier (6) is provided with two-way scales matched with the scale marks (10).

5. The angle measuring instrument according to claim 1, wherein: the middle point of the fixed measuring rod (2) is coincided with the circle center of the measuring panel (1), and the length of the fixed measuring rod (2) is larger than the diameter of the measuring panel (1).

6. The angle measuring instrument according to claim 1, wherein: the connection parts of the fixed measuring rod (2) and the movable measuring rod (3) and the measuring foot (4) are respectively provided with a strip-shaped sliding groove (8) and are connected through an adjusting screw rod (9), and the adjusting screw rod (9) penetrates through the strip-shaped sliding groove (8) to be connected with the measuring foot (4) in a threaded fit manner.

7. The angle measuring instrument according to claim 6, wherein: the measuring foot (4) is a rectangular plate, and the short edge of the rectangular plate is parallel to the fixed measuring rod (2).

Technical Field

The invention belongs to the technical field of measuring instruments, and particularly relates to an angle measuring instrument.

Background

The problem of the included angle between the intersecting planes on the object to be measured is often encountered in daily industrial production application, the included angle is different in the position and angle of the object, and may be an inner angle or an outer angle, the included angle is formed and may also be the intersecting plane of two objects, and the measurement of the angle is also difficult if the intersecting planes are not at the same height. At present, a measuring instrument applied to actual measurement production can only measure an angle under a certain specific condition, the application range is not wide or the use and operation are complex, and the use difficulty is increased.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide an angle measuring instrument, which is convenient to operate, wide in application range, and high in accuracy of measurement results.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an angle measuring instrument comprises a fan-shaped measuring panel, wherein the front surface of the measuring panel is provided with scale marks; the method is characterized in that: the measuring device also comprises a fixed measuring rod and a movable measuring rod, wherein the fixed measuring rod is fixedly arranged on the reverse side of the measuring panel and is superposed with the 0 scale mark, and measuring pins are arranged at two ends of the fixed measuring rod; the movable measuring rod is arranged on the front face of the measuring panel through a rotating shaft, the rotating shaft is located in the circle center of the measuring panel, one end of the movable measuring rod is an angle positioning rod, and a measuring foot is arranged at the other end of the movable measuring rod.

Further, the measuring range of the scale mark 10 on the front surface of the measuring panel is 90 degrees.

Furthermore, the front scale mark 10 of the measuring panel is a bidirectional scale, wherein the reading in the clockwise direction is 0-90 degrees, and the reading in the counterclockwise direction is 90-180 degrees.

Furthermore, the top end of the angle positioning rod is provided with a vernier matched with the scale marks on the front surface of the measuring panel, and the front surface of the vernier is provided with two-way scales matched with the scale marks.

Furthermore, the middle point of the fixed measuring rod is superposed with the circle center of the measuring panel, and the length of the fixed measuring rod is larger than the diameter of the measuring panel.

Furthermore, the joints of the fixed measuring rod and the movable measuring rod with the measuring feet are provided with strip-shaped sliding grooves and connected through adjusting screws, and the adjusting screws penetrate through the strip-shaped sliding grooves and are in threaded fit connection with the measuring feet.

Furthermore, the measuring foot is a rectangular plate, and the short edge of the rectangular plate is parallel to the fixed measuring rod.

The invention has the beneficial effects that:

1. when the angle is measured, the angle can be measured only by fitting the adjusted measuring foot with the measured surface. Because the flexibility that the measuring foot is adjustable, no matter the contained angle that the object formed is interior angle or exterior angle, only need stretch into and laminate the measured face with the measuring foot and can carry out the measurement of angle. When the objects or planes forming the included angle are not at the same height, the measuring foot can be attached to the measured surfaces at different heights by adjusting the mounting position of the measuring foot on the measuring rod (mounted above or below the measuring rod), and the included angle formed between the two objects or planes can be measured. The measuring feet can adopt different specifications and shapes, and can adapt to different use scenes through adjustment, so that the invention has wider application range.

2. When an angle smaller than 90 degrees is measured, a measuring pin of the rotary measuring rod is matched with a measuring pin at one end of the fixed measuring rod, and clockwise reading is carried out through reading scales of 0-90 degrees clockwise by matching with a vernier; when an angle larger than 90 degrees is measured, the measuring foot of the rotary measuring rod is matched with the measuring foot at the other end of the fixed measuring rod, and the volume of the measuring panel is reduced through the counter-clockwise reading scale of 90-180 degrees, the vernier and the counter-clockwise reading.

3. When measuring the angle, because different angles exist clockwise, anticlockwise reading, consequently the vernier also is equipped with corresponding two-way scale simultaneously for clockwise, anticlockwise reading can both obtain accurate numerical value.

Drawings

Fig. 1 is a perspective view of an angle measuring instrument in an embodiment.

FIG. 2 is a front view of the angle measuring device in the embodiment.

FIG. 3 is a schematic diagram of an angle measuring apparatus for measuring an angle smaller than 90 degrees in the embodiment.

FIG. 4 is a schematic diagram of an angle measuring apparatus for measuring an angle greater than 90 degrees in the embodiment.

In the figure: 1. a measurement panel; 2. fixing the measuring rod; 3. a movable measuring rod; 4. measuring a foot; 5. an angle positioning rod; 6. a cursor; 7. a rotating shaft; 8. a strip-shaped sliding groove; 9-adjusting the screw rod; 10. scale lines; 11. 0-90 reading scale; 12. and (5) reading scales of 90-180.

Detailed Description

For a better understanding of the present invention, the technical solutions of the present invention will be further described below with reference to the following examples and accompanying drawings.

As shown in fig. 1 and 2, the angle measuring instrument comprises a fan-shaped measuring panel 1, and the front surface of the measuring panel 1 is provided with scale marks 10.

The measuring device is characterized by further comprising a fixed measuring rod 2 and a movable measuring rod 3, wherein the fixed measuring rod 2 is fixedly installed on the reverse side of the measuring panel 1 and is overlapped with 0 scale mark, the middle point of the fixed measuring rod 2 is overlapped with the circle center of the measuring panel 1, the length of the fixed measuring rod 2 is larger than the diameter of the measuring panel 1, and measuring feet 4 are arranged at two ends of the fixed measuring rod 2. The movable measuring rod 3 is arranged on the front surface of the measuring panel 1 through a rotating shaft 7, the rotating shaft 7 is positioned at the center of the measuring panel 1, and a nut for adjusting tightness is arranged on the rotating shaft 7; one end of the movable measuring rod 3 is an angle positioning rod 5 for indicating a scale mark 10 on the front surface of the measuring panel 1, and the other end of the movable measuring rod 3 is provided with a measuring pin 4 which forms a measuring clamping part with the measuring pin 4 on the fixed measuring rod 2 for clamping a measured angle.

The measuring range of the scale mark 10 on the front surface of the measuring panel 1 is 90 degrees (the angle of the measuring panel 1 is slightly larger than 90 degrees). The front scale mark 10 of the measuring panel 1 is a bidirectional scale, wherein the reading in the clockwise direction is 0-90 degrees, the reading in the counterclockwise direction is 90-180 degrees, the total reading range is 180 degrees, and the 180 degrees and 0 degree are overlapped. The top of angle locating lever 5 is equipped with and measures 1 positive scale mark 10 matched with vernier 6 of panel, the front of vernier 6 is equipped with the two-way scale of scale mark 10 assorted, can cooperate the two-way scale of measuring 1 positive scale mark 10 of panel to carry out the reading of two directions, realizes accurate reading.

The joint of the fixed measuring rod 2, the movable measuring rod 3 and the measuring foot 4 is provided with a strip-shaped sliding groove 8 and is connected with the fixed measuring rod through an adjusting screw rod 9, and the adjusting screw rod 9 penetrates through the strip-shaped sliding groove 8 to be in threaded fit connection with the measuring foot 4. The measurement foot can be installed above or below the measurement rod according to measurement requirements. The measuring foot 4 is a rectangular plate, and the short edge of the rectangular plate is parallel to the fixed measuring rod 2.

The measuring method comprises the following steps:

(1) adjusting the measuring feet 4 on the two measuring rods to enable the measuring feet to be attached to two planes with included angles with the measured object; the included angle formed between the two measuring rods is the included angle of the measured object, and the accurate numerical value is obtained by reading the scales on the vernier 6 and the measuring panel 1, so that the rapid and accurate measurement of various angles is realized.

(2) Measuring obtuse and acute angles

As shown in fig. 3, when an angle smaller than 90 degrees is measured, the movable measuring rod 3 is rotated to be matched with the measuring foot 4 at one end of the fixed measuring rod 2, and clockwise reading is carried out through clockwise reading scales of 0-90 degrees;

as shown in FIG. 4, when the angle of more than 90 degrees is measured, the movable measuring rod 3 is rotated to be matched with the measuring foot 4 at the other end of the fixed measuring rod 2, and the counter-clockwise reading is carried out through the reading scales of 90-180 degrees clockwise.

(3) Internal and external angles were measured: on the basis of (1) and (2), when the object that forms the contained angle is not at same height, can make measuring foot 4 can laminate the not surveyed face of co-altitude through the mounted position (the top of measuring stick or below) of alignment measuring foot 4 on the measuring stick, can survey the contained angle that forms between two objects equally.

The above description is only an application example of the present invention, and certainly, the present invention should not be limited by this application, and therefore, the present invention is still within the protection scope of the present invention by equivalent changes made in the claims of the present invention.