CN110901266A

CN110901266A - Industrial ellipsograph

Info

Publication number: CN110901266A
Application number: CN201911166374.XA
Authority: CN
Inventors: 李雨欣; 雷利霞; 曹金玲
Original assignee: Yulin University
Current assignee: Yulin University
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-03-24

Abstract

An industrial ellipsograph, a left positioning rod is arranged at the left end of a bracket, a right positioning rod is arranged at the right end of the bracket, the left positioning rod and the right positioning rod are bilaterally symmetrical about the bracket, a rotatable rotating shaft is arranged at the center of the bracket, a sliding rod is arranged on the rotating shaft, one end of the sliding rod is fixedly connected with the rotating shaft, the other end of the sliding rod is provided with a pen container capable of moving back and forth along the sliding rod, a spring is arranged in the sliding rod, one end of the spring is connected with the rotating shaft, the other end of the spring is connected with the pen container, a pulley is arranged on the pen container, a painting brush is arranged at the lower end of the pen container, a, the device has simple operation, strong flexibility, small volume, light weight and low cost, and can be widely applied to the industrial production of ellipse drawing operation.

Description

Industrial ellipsograph

Technical Field

The invention belongs to the technical field of writing or drawing instruments, and particularly relates to an industrial ellipsograph.

Background

The ellipse is a common geometric figure and is widely applied in various industries. In industrial production or teaching of mathematical processes, a large number of ellipses need to be drawn. Due to the particularity of the ellipse, drawing the ellipse is troublesome at present. The simplest method for drawing an ellipse is a four-center circle method, which is suitable for a regular drawing method of a circle, namely, an ellipse arc is approximately replaced by a four-segment arc. At present, ellipsographs specially used for drawing ellipses exist in the market, although the ellipsographs are feasible theoretically, the ellipsographs are complex in structure, high in cost and quite inconvenient to actually operate, the length and size adjusting range of the existing ellipsographs are limited, only ellipses with small axial lengths can be drawn, and the requirement for drawing large ellipses cannot be met.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an industrial ellipsograph which is reasonable in design, simple in structure, low in cost and simple and convenient to operate.

The technical scheme for solving the technical problems is as follows: be provided with the left side locating lever at the left end of support, the right-hand member is provided with the right side locating lever, left side locating lever and right side locating lever are about support bilateral symmetry, the central point of support puts and is provided with rotatable rotation axis, be provided with the slide bar on the rotation axis, slide bar one end and rotation axis fixed connection, the slide bar other end is provided with can follow the pen container of slide bar back and forth movement, be provided with the spring in the slide bar, the one end of spring is connected with the rotation axis, the other end is connected with the pen container, be provided with the pulley on the pen container, the lower extreme of pen container is provided with the painting brush, be provided with on the support and receive the line roller, be provided with on receiving.

The painting brush is detachably arranged at the lower end of the pen container.

The height from the lower surface of the sliding rod to the upper surface of the support is greater than the height of the take-up roll shaft.

The lower ends of the left positioning rod and the right positioning rod are respectively provided with a magnet or a sucker, and all the magnets or the suckers are positioned in the same plane.

The take-up roll shaft is provided with external threads, and the take-up roll is clamped on the upper surface of the bracket through a nut.

The upper surface of the take-up roller is provided with a take-up handle.

The sliding rod is of a long strip-shaped structure with a slotted hole formed in the middle, the rotating shaft is fixedly arranged in the slotted hole, and the pen container is slidably arranged in the slotted hole.

The gauge line of the invention is provided with scales.

The invention adopts the take-up roller to adjust the length of the gauge line to draw ellipses with different sizes, meanwhile, the rotating shaft is provided with the slide rail, the slide rail is internally provided with the spring, one end of the spring is fixed on the rotating shaft, the other end of the spring is fixed on the pen container, the pen container can move back and forth along the slide rail, the gauge line is tightened due to the elastic action of the spring, the defect of drawing errors caused by the looseness of the gauge line in the drawing process of an operator is avoided, the operation is simple, the flexibility is strong, the compasses have small volume, light weight and low cost, great convenience is brought to industrial engineering drawing, the bottom ends of the two positioning rods can be provided with the magnetite or the sucker, the magnetite can be used for drawing on an iron sheet, and the stability of the device is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a left side view of fig. 2.

In the figure: 1. a support; 2. a left positioning rod; 3. line gauge; 4. a take-up roll shaft; 5. a wire take-up roller; 6. a rotating shaft; 7. a slide bar; 8. a spring; 9. a pen container; 10. a pulley; 11. painting brushes; 12. a right positioning rod; 13. a wire-collecting handle.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.

Example 1

In fig. 1 to 4, an industrial ellipsograph according to the present invention 1 is provided, in which a bracket 1 has a long bar-shaped structure with a width of a left end larger than a width of a right end, a left positioning rod 2 is fixedly connected to the left end of the bracket 1, a right positioning rod 12 is fixedly connected to the right end of the bracket 1, the left positioning rod 2 and the right positioning rod 12 are bilaterally symmetrical with respect to the bracket 1, a rotatable rotating shaft 6 is installed at a center position of the bracket 1, a sliding rod 7 is installed on the rotating shaft 6, the sliding rod 7 of the present embodiment has a long bar-shaped structure with a slotted hole formed at a middle portion thereof, the rotating shaft 6 is fixedly installed in the slotted hole, a pen container 9 is slidably installed in the slotted hole, the pen container 9 can move back and forth along the sliding rod 7, a spring 8 is installed in the sliding, a wire take-up roll shaft 4 is processed at the left end of the support 1, external threads are processed on the wire take-up roll shaft 4, a wire take-up roll 5 is mounted on the wire take-up roll shaft 4 and clamped on the upper surface of the support 1 through a nut, a wire take-up handle 13 is mounted on the upper surface of the wire take-up roll 5, and the length of the gauge wire 3 can be adjusted by rotating the wire take-up handle 13. The rule 3 of this embodiment is last to be provided with the scale, be convenient for the operator 3 length of more audio-visual regulation rule to required position, the one end of rule 3 is drawn forth by receiving the line roller 5, walk around left side locating lever 2 in proper order, pulley 10, right side locating lever 12 and be fixed in on right side locating lever 12, in order to guarantee that this device can normally rotate the mapping, the height that highly is greater than receiving the line roller 4 of 1 upper surface of slide bar 7 lower surface distance support, furthermore, in order to guarantee the stability of device, can be at left side locating lever 2 and the 12 lower extreme of right side locating lever installation magnetite or sucking disc, all magnet or sucking disc are located the coplanar.

The working principle of the invention is as follows:

the device is fixed on an operation surface through the magnet or the sucker arranged on the left positioning rod 2 and the right positioning rod 12, the screw cap is loosened, the wire take-up handle 13 is rotated to drive the wire take-up roller 5 to rotate on the wire take-up roller shaft 4, the gauge wire 3 is adjusted to reach the required length, and due to the elastic action of the spring 8, the gauge wire 3 is in a tightened state, and the pen container 9 is slightly pressed and rotated, so that the ellipse drawing can be completed.

Claims

1. An industrial ellipsograph, characterized in that: a left positioning rod (2) is arranged at the left end of a support (1), a right positioning rod (12) is arranged at the right end of the support (1), the left positioning rod (2) and the right positioning rod (12) are bilaterally symmetrical about the support (1), a rotatable rotating shaft (6) is arranged at the central position of the support (1), a sliding rod (7) is arranged on the rotating shaft (6), one end of the sliding rod (7) is fixedly connected with the rotating shaft (6), a pen container (9) capable of moving back and forth along the sliding rod (7) is arranged at the other end of the sliding rod (7), a spring (8) is arranged in the sliding rod (7), one end of the spring (8) is connected with the rotating shaft (6), the other end of the spring is connected with the pen container (9), a pulley (10) is arranged on the pen container (9), a painting pen (11) is arranged at the lower end of the pen, one end of the gauge wire (3) is led out by a wire collecting roller (5), sequentially bypasses the left positioning rod (2), the pulley (10) and the right positioning rod (12) and is fixed on the right positioning rod (12).

2. An industrial ellipsograph according to claim 1, wherein: the paintbrushes (11) are detachably arranged at the lower end of the pen container (9).

3. An industrial ellipsograph according to claim 1, wherein: the height from the lower surface of the sliding rod (7) to the upper surface of the bracket (1) is greater than the height of the take-up roll shaft (4).

4. An industrial ellipsograph according to claim 1, wherein: the lower ends of the left positioning rod (2) and the right positioning rod (12) are provided with magnetite or suckers, and all the magnetite or suckers are located on the same plane.

5. An industrial ellipsograph according to claim 1, wherein: the wire take-up roll shaft (4) is provided with external threads, and the wire take-up roll (5) is clamped on the upper surface of the support (1) through a nut.

6. An industrial ellipsograph according to claim 1, wherein: and a wire take-up handle (13) is arranged on the upper surface of the wire take-up roller (5).

7. An industrial ellipsograph according to claim 1, wherein: the sliding rod (7) is of a long-strip-shaped structure with a slotted hole in the middle, the rotating shaft (6) is fixedly arranged in the slotted hole, and the pen container (9) is arranged in the slotted hole in a sliding mode.

8. An industrial ellipsograph according to claim 1, wherein: the gauge lines (3) are provided with scales.