CN211942742U

CN211942742U - Drawing display device for mechanical drawing

Info

Publication number: CN211942742U
Application number: CN202020624895.7U
Authority: CN
Inventors: 谢茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-17
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to the field of mechanical drawing tools, in particular to a drawing and displaying device for mechanical drawing, which comprises a box body, wherein a transparent drawing board is arranged on the box body, an annular groove is arranged on the frame on the front side of the box body, two clamping devices are arranged on the annular groove, each clamping device comprises a bottom block and a gripper, the bottom block is in sliding connection with the annular groove, the gripper is in rotating connection with the bottom block, the two clamping devices clamp a flat ruler, a chute is arranged on the flat ruler, a sliding shaft is in sliding connection with the chute, the sliding shaft comprises a lower shaft rod arranged in the chute and an upper shaft rod in rotating connection with the lower shaft rod, the side surface of the upper shaft rod is connected with a flexible ruler, the end part of the flexible ruler is connected with a pen cap, a projection lamp is arranged in the box body, a switch is arranged outside the box body, straight lines can be drawn at any angle by arranging the clamping, convenient drawing; the transparent drawing board and the projection lamp are arranged, so that the drawing result can be projected conveniently, and the student can watch the drawing result conveniently.

Description

Drawing display device for mechanical drawing

Technical Field

The utility model relates to a mechanical drawing apparatus field, concretely relates to drawing display device for mechanical drawing.

Background

The mechanical drawing is a subject which expresses the structural shape, the size, the working principle and the technical requirements of a machine by using figures, symbols, characters, numbers and the like. In the study of mechanical drawing, the combination of study and practice is often needed, and teachers are required to draw pictures to be used as teaching references for students to study. The existing teaching method is usually used for teaching in a way that a teacher directly writes on a blackboard or directly puts a drawing result in a computer, and the methods have many defects: in the black mark teaching, various drawing tools need to be carried, and remote students cannot see details of a small part of the drawing, so that the computer teaching loses the manual drawing process, and students cannot fully understand the drawing process.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

An object of the utility model is to provide a drawing display device is used in machinery mapping, makes things convenient for the mapping and can carry out the projection to the drawing result.

Second, technical scheme

The utility model discloses a realize through following technical scheme: the utility model provides a drawing display device for mechanical drawing, comprises a

box bod

1, 1 openly opening of box body and opening part are provided with transparent drawing board 8, be provided with annular groove 11 on the 1 openly frame of box body, be provided with two clamping device 3 on the annular groove 11, clamping device 3 includes bottom block 31, tongs 32,

bottom block

31 and 11 sliding connection in annular groove, tongs 32 rotates with bottom block 31 to be connected, two clamping device 3 centre grippings have flat rule 2, the spout 21 has been seted up on the flat rule 2, sliding connection has sliding shaft 4 on the spout 21, sliding shaft 4 is including setting up lower axostylus axostyle 41 in spout 21, with the upper shaft lever 42 of lower axostylus axostyle 41 rotation connection, the side of going up axostylus axostyle 42 is connected with soft chi 5, the end connection of soft chi 5 has

pen socket

6, 1 back inboard of box body is provided with projecting lamp 7, The surface is provided with a switch 10 electrically connected to the projection lamp 7.

Further, the handle 32 includes a rotating shaft 321 rotatably connected to the bottom block 31, two grasping fingers 322 are symmetrically disposed at the upper end of the rotating shaft 321, a guide hole 325 is disposed at the lower end of each grasping finger 322, a spring 324 is fixedly connected to the bottom of the guide hole 325, two guide posts 323 are symmetrically disposed at the upper end of the rotating shaft 321, and the guide posts 323 extend into the guide holes 325 and are connected to the spring 324.

Further, the hand grip 32 includes an inverted L-shaped positioning rod 326, and a rod portion of the positioning rod 326 is screwed with a circular flat plate 327.

Further, the cross section of the annular groove 11 is in an inverted T shape, and the bottom block 31 is cylindrical and has a diameter larger than the width of the upper end of the annular groove 11.

Further, the flat rule 2 and the flexible rule 5 are provided with scales.

Further, a slot 22 is formed in a side surface of the box body 1, and a shading background plate 9 is inserted into the slot 22.

Further, a knob 43 is fixedly connected to the top end of the upper shaft 42.

Third, beneficial effect

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

1. the utility model provides a drawing display device for mechanical drawing, through setting up clamping device and flat rule, can draw the straight line by arbitrary angle, through setting up sliding shaft, tape measure, can fix a position the centre of a circle, the arbitrary position draws the arc, convenient mapping;

2. through setting up transparent drawing board, projection lamp convenience and carrying out the projection to the mapping result, make things convenient for the student to watch.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention

Fig. 3 is a sectional view of the sliding shaft and the flat ruler of the present invention;

fig. 4 is a first embodiment of the clamping device and annular groove of the present invention;

fig. 5 is a second embodiment of the clamping device and annular groove of the present invention;

1-box body; 2-leveling; 21-a chute; 3-a clamping device; 4-a sliding shaft; 41-lower shaft rod; 42-upper shaft; 43-a knob; 5-flexible rule; 6-pen cap; 7-a projection lamp; 8-transparent drawing board; 9-shading background plate; 10-a switch; 11-an annular groove; 31-a bottom block; 32-hand grip; 321-a rotating shaft; 322-grasping fingers; 323-guide post; 324-a spring; 325-a guide hole; 326-a positioning rod; 327-circular flat plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-5, the utility model provides a drawing display device for machine-made drawing, including box body 1, box body 1 openly and the opening part is provided with transparent drawing board 8, be provided with annular groove 11 on the frame of box body 1 openly, be provided with two clamping device 3 on the annular groove 11, clamping device 3 includes bottom block 31, tongs 32, bottom block 31 and annular groove 11 sliding connection, tongs 32 and bottom block 31 rotate to be connected, and clamping device 3 can slide in annular groove 11 optional position, can rotate tongs 32 at clamping device 3 top and use tongs 32 to centre gripping the flat rule 2 after sliding to required position;

the flat ruler 2 is provided with a sliding groove 21, the sliding groove 21 is connected with a sliding shaft 4 in a sliding manner, the sliding shaft 4 comprises a lower shaft rod 41 arranged in the sliding groove 21 and an upper shaft rod 42 rotatably connected with the lower shaft rod 41, the side surface of the upper shaft rod 42 is connected with a flexible ruler 5, the end part of the flexible ruler 5 is connected with a pen cap 6, the lower shaft rod 41 can slide in the sliding groove 21 and drive the upper shaft rod 42 to be positioned at the center of a circle of an arc to be drawn, the upper shaft rod 42 is rotated, the flexible ruler 5 is pulled out, and the radius of the arc to be drawn can be determined;

the inner side of the back of the box body 1 is provided with a projection lamp 7, the surface of the box body is provided with a switch 10 electrically connected with the projection lamp 7, after drawing, the projection lamp 7 irradiates a transparent drawing board 8, and drawing results can be put in.

More specifically, the cross section of the annular groove 11 is in an inverted T shape, the bottom block 31 is cylindrical and has a diameter larger than the width of the upper end of the annular groove 11, and the bottom block 31 can be clamped in the annular groove 11 and cannot fall off along with the movement of the clamping device 3; scales are arranged on the flat ruler 2 and the flexible ruler 5, so that the length of a straight line or a straight line and the radius of an arc are conveniently determined; the side surface of the box body 1 is provided with a slot 22, and the shading background plate 9 is inserted into the slot 22, so that the drawing detail on the transparent drawing plate 8 can be clearly seen when drawing, the dazzling is avoided, and the shading background plate 9 can be pulled out when projecting; the top end of the upper shaft lever 42 is also fixedly connected with a knob 43, so that the flexible rule 5 can be conveniently folded and unfolded by rotating the sliding shaft 4.

The above constitutes the basic structure of the present invention.

To ensure the clamping effect of the clamping device 3 for different sizes of flat rulers, please refer to fig. 4 and 5, and the present invention will be further described with reference to the following embodiments:

example one

As shown in fig. 4, the grasping hand 32 includes a rotating shaft 321 rotatably connected to the bottom block 31, two grasping fingers 322 are symmetrically disposed at the upper end of the rotating shaft 321, the flat ruler 2 is grasped by the two grasping fingers from the left and right sides, a guide hole 325 is disposed at the lower end of the grasping finger 322, a spring 324 is fixedly connected to the bottom of the guide hole 325, two guide posts 323 are symmetrically disposed at the upper end of the rotating shaft 321, the guide posts 323 extend into the guide hole 325 and are connected to the spring 324, the grasping fingers 322 can be respectively pulled in the left and right directions, the flat ruler 2 is placed in the middle of the grasping fingers 322, and the grasping fingers 322 clamp the flat ruler 2 under the pulling force of the spring 324, so as to achieve a better grasping effect.

Example two

The hand grip 32 includes an inverted L-shaped positioning rod 326, a circular flat plate 327 is screwed to a rod portion of the positioning rod 326, the flat rule 2 is placed between the circular flat plate 327 and the positioning rod 326, the circular flat plate 327 is rotated upward, and the flat rule is clamped from the up-down direction.

The working principle is as follows:

when the drawing tool is used for drawing on the transparent glass plate 8, when a straight line needs to be drawn, the flat ruler is clamped between the two clamping devices 3, the bottom block 31 of each clamping device 3 can move in the annular groove 11 to adjust the position of the flat ruler 2 to draw the straight line, the gripper 32 is rotatably connected with the bottom block 31, and the flat ruler 2 can be clamped in the clamping devices 3 at any angle; when an arc needs to be drawn, the flat ruler 2 is moved until the circle center of the drawn shape is on the drawing edge of the flat ruler 2, the sliding shaft 4 is moved to the circle center position on the sliding chute 21, the flexible ruler 5 is stretched, the stretching length is the radius, and a drawing pen is placed in the pen cap 6 to draw the arc; after drawing is finished, the projection lamp can be turned on to project the graphics to an external white screen or a wall surface.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a drawing display device for machine-building drawing which characterized in that: comprises a box body (1), the front side of the box body (1) is provided with an opening, a transparent drawing board (8) is arranged at the opening, the front side frame of the box body (1) is provided with an annular groove (11), the annular groove (11) is provided with two clamping devices (3), each clamping device (3) comprises a bottom block (31) and a gripper (32), the bottom blocks (31) are slidably connected with the annular groove (11), the grippers (32) are rotatably connected with the bottom blocks (31), the two clamping devices (3) clamp a flat ruler (2), the flat ruler (2) is provided with a chute (21), the chute (21) is slidably connected with a sliding shaft (4), the sliding shaft (4) comprises a lower shaft rod (41) arranged in the chute (21) and an upper shaft rod (42) rotatably connected with the lower shaft rod (41), the side surface of the upper shaft rod (42) is connected with a flexible ruler (5), the end part of the tape (5) is connected with a pen cap (6), the inner side of the back of the box body (1) is provided with a projection lamp (7), and the surface of the box body is provided with a switch (10) which is electrically connected with the projection lamp (7).

2. The drawing display device for machine drawing according to claim 1, wherein: the tongs (32) include pivot (321) of being connected with bottom block (31) rotation, the upper end symmetry of pivot (321) is provided with two and grabs finger (322), guiding hole (325) have been seted up to the lower extreme of grabbing finger (322), the bottom fixedly connected with spring (324) of guiding hole (325), the upper end of pivot (321) still symmetry is provided with two guide post (323), guide post (323) stretch into in guiding hole (325) and are connected with spring (324).

3. The drawing display device for machine drawing according to claim 1, wherein: the handle (32) comprises an inverted L-shaped positioning rod (326), and a rod part of the positioning rod (326) is in threaded connection with a circular flat plate (327).

4. A drawing display device for machine drawing according to any one of claims 1 to 3, characterised in that: the cross section of the annular groove (11) is in an inverted T shape, and the bottom block (31) is cylindrical and the diameter of the bottom block is larger than the width of the upper end of the annular groove (11).

5. The drawing display device for machine drawing according to claim 1, wherein: the leveling ruler (2) and the flexible ruler (5) are provided with scales.

6. The drawing display device for machine drawing according to claim 1, wherein: a slot (22) is formed in the side face of the box body (1), and a shading background plate (9) is inserted into the slot (22).

7. The drawing display device for machine drawing according to claim 1, wherein: the top end of the upper shaft lever (42) is also fixedly connected with a knob (43).