CN210502020U - Drawing tool for mechanical design - Google Patents

Abstract

The utility model discloses a graphics primitive for mechanical design, draw main part and drawing main part including appearance drawing main part, interior shape, the appearance is drawn the main part and is included slab and first separation blade, the even fixed connection of first separation blade is at the inner wall of slab, interior shape drawing main part includes that the second keeps off ring, support frame, bearing and second separation blade, the lower extreme fixed connection of support frame is at the inner wall of second separation blade, the outer wall fixed connection of bearing is in the upper end of support frame, the even fixed connection of second separation blade is at the inner wall that the second kept off the ring, the outer wall fixed connection of second fender ring is at the inner wall of first separation blade, the drawing main part includes bracing piece, pointer, pivot, pencil core, fixed cover, first fixed block, rocking arm, second fixed block and tension spring, the lower part outer wall fixed connection of bracing piece is at the inner wall of bearing. The utility model discloses can improve gear drawing efficiency, better satisfying the use needs.

Description

Drawing tool for mechanical design

Technical Field

The utility model relates to a drawing tool technical field for mechanical design specifically is a drawing tool for mechanical design.

Background

The drawing tool for mechanical design comprises tools such as a ruler and compasses, however, the most common graph in mechanical design is a gear, when a user draws the gear, a lot of time is needed to draw an auxiliary line, and finally the auxiliary line is connected, and the redundant auxiliary line is needed to be wiped off by an eraser, so that the problem of time waste in the gear drawing process is caused, and a device capable of solving the problem is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drawing tool for mechanical design to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a drawing tool for mechanical design comprises a shape drawing main body, an inner shape drawing main body and a drawing main body; the appearance drawing main body comprises a plate sheet and a first separation blade, the first separation blade is uniformly and fixedly connected to the inner wall of the plate sheet, the appearance drawing main body comprises a second retaining ring, a support frame, a bearing and a second separation blade, the lower end of the support frame is fixedly connected to the inner wall of the second separation blade, the outer wall of the bearing is fixedly connected to the upper end of the support frame, the second separation blade is uniformly and fixedly connected to the inner wall of the second retaining ring, the outer wall of the second retaining ring is fixedly connected to the inner wall of the first separation blade, the drawing main body comprises a support rod, a pointer, a rotating shaft, a pencil lead, a fixed sleeve, a first fixed block, a rotating arm, a second fixed block and a tension spring, the lower outer wall of the support rod is fixedly connected to the inner wall of the bearing, the support rod is rotatably installed at the upper end of the support frame through the bearing, the upper end fixed connection of fixed cover is at the lower extreme of first fixed block, the outer wall fixed connection of first fixed block is in tension spring's one end, tension spring's other end fixed connection draws the outer wall of main part at interior shape, second fixed block fixed connection is at the lower part outer wall of rocking arm, the outer end at the pivot is installed in the middle part rotation of fixed cover, the upper end rear portion at the bracing piece is installed in the upper end rotation of rocking arm.

Preferably, the shape drawing main body further comprises a first baffle ring, and the second baffle ring is fixedly connected to the upper wall of the plate.

Preferably, the drawing main body further comprises a pointer, and the upper end of the pointer is fixedly connected to the lower end of the supporting rod.

Preferably, the lower ends of the supporting frames are fixedly connected with anti-skid needles.

Preferably, the drawing main body further comprises a fastening knob, and the rear end of the fastening knob is installed on the inner wall of the upper end of the rotating arm through the upper end screw thread of the supporting rod.

Preferably, the drawing main body further comprises a handle, and the lower end of the handle is fixedly connected to the upper end of the support rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

when a user needs to draw a gear on paper, firstly, a plate is placed on a target paper surface, then, a pointer is aligned with the center of a target, then, a support frame is pressed by hands, a non-slip needle at the lower end of the support frame is embedded into the target paper, then, a rotating arm is unfolded, then, a drawing main body is manually rotated through a handle, so that a fixing sleeve slides along the inner wall of a first retaining ring, the fixing sleeve can avoid a first retaining sheet by utilizing the rotating characteristic of the rotating shaft, the line of the gear is drawn on the target paper surface by a pencil lead, then, the fixing sleeve is moved to the inner wall of a second retaining ring, the fixing sleeve is rotated for a circle in the same way, the fixing sleeve avoids a second retaining sheet in the same way, so that the inner line of the gear drawn on the target paper surface by the pencil lead is broken, the drawing main body is reversely rotated for a circle on the inner wall of the appearance drawing main body and the inner wall of, reach the purpose that improves gear drawing efficiency, draw the gear model of the periphery of main part at the appearance and increase different models like this, can increase the model volume that the gear was drawn.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the structure of the appearance drawing main body of the present invention;

FIG. 3 is a schematic view of the inner drawing main structure of the present invention;

fig. 4 is a schematic diagram of the drawing main structure of the present invention.

In the figure: 1. a body is drawn; 2. drawing a main body by the inner shape; 3. a drawing body; 4. a sheet; 5. a first baffle plate; 6. a first retainer ring; 7. a second retainer ring; 8. a support frame; 9. a bearing; 10. a second baffle plate; 11. a support bar; 12. a pointer; 13. a rotating shaft; 14. a pencil lead; 15. fixing a sleeve; 16. a first fixed block; 17. a rotating arm; 18. fastening a knob; 19. a handle; 20. a second fixed block; 21. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a drawing tool for mechanical design comprises an outer shape drawing main body 1, an inner shape drawing main body 2 and a drawing main body 3; the appearance drawing main body 1 comprises a plate 4 and a first baffle 5, the first baffle 5 is uniformly and fixedly connected to the inner wall of the plate 4, the appearance drawing main body 2 comprises a second baffle ring 7, a support frame 8, a bearing 9 and a second baffle 10, the lower end of the support frame 8 is fixedly connected to the inner wall of the second baffle 10, the outer wall of the bearing 9 is fixedly connected to the upper end of the support frame 8, the second baffle 10 is uniformly and fixedly connected to the inner wall of the second baffle ring 7, the outer wall of the second baffle ring 7 is fixedly connected to the inner wall of the first baffle 5, the drawing main body 3 comprises a support rod 11, a pointer 12, a rotating shaft 13, a pencil lead 14, a fixed sleeve 15, a first fixed block 16, a rotating arm 17, a second fixed block 20 and a tension spring 21, the lower outer wall of the support rod 11 is fixedly connected to the inner wall of the bearing 9, the support rod 11 is, the pencil lead 14 is embedded and fixedly installed at the lower end of the fixed sleeve 15, the upper end of the fixed sleeve 15 is fixedly connected at the lower end of the first fixed block 16, the outer wall of the first fixed block 16 is fixedly connected at one end of the tension spring 21, the other end of the tension spring 21 is fixedly connected at the outer wall of the inner drawing main body 2, the second fixed block 20 is fixedly connected at the lower outer wall of the rotating arm 17, the middle part of the fixed sleeve 15 is rotatably installed at the outer end of the rotating shaft 13, the upper end of the rotating arm 17 is rotatably installed at the rear part of the upper end of the supporting rod 11, when a user needs to draw gears on paper, the plate 4 is firstly placed on a target drawing paper, then the target center is aligned through the pointer 12, then the supporting frame 8 is pressed by hand, so that the anti-slip needle at the lower end of the supporting frame 8 is embedded into the target, utilize the rotation characteristics of pivot 13, make fixed cover 15 can avoid first separation blade 5, draw the outer circle line fracture of gear along the paper through pencil core 14, then move fixed cover 15 to second separation blade ring 7 inner wall, the same reason rotates the round, the same reason makes fixed cover 15 avoid second separation blade 10, thereby make pencil core 14 draw the interior line fracture of gear on the target paper, the same reason is drawn main part 3 and is drawn the inner wall reverse rotation round improvement drawing precision of main part 2 at outline drawing main part 1 and interior shape, move aside the device at last, and link to each other with the help of plus ruler line fracture both ends that draw and form the gear, reach the purpose that improves gear drawing efficiency, the same reason is drawn the gear model of different models in the periphery of main part 1 increase, the model volume that the gear was drawn.

The main part 1 is drawn to the appearance still includes first fender ring 6, 7 fixed connection of second fender ring are at the upper wall of slab 4, drawing main part 3 still includes pointer 12, the upper end fixed connection of pointer 12 is at the lower extreme of bracing piece 11, the equal fixedly connected with antiskid needle of lower extreme of support frame 8, drawing main part 3 still includes fastening knob 18, the upper end inner wall at rocking arm 17 is installed to the upper end screw thread that bracing piece 11 was run through to fastening knob 18's rear end, drawing main part 3 still includes handle 19, the lower extreme fixed connection of handle 19 is in the upper end of bracing piece 11.

The working principle is as follows: when a user needs to draw a gear on paper, firstly, the plate 4 is placed on a target paper surface, then the target center is aligned through the pointer 12, then the support frame 8 is pressed by hands, the anti-skid needle at the lower end of the support frame 8 is embedded into the target paper, then the rotating arm 17 is unfolded, then the drawing main body 3 is manually rotated through the handle 19, the fixing sleeve 15 slides along the inner wall of the first retaining ring 6, the fixing sleeve 15 can avoid the first retaining plate 5 by utilizing the rotating characteristic of the rotating shaft 13, the line of the outer circle of the gear is broken along the paper surface through the pencil lead 14, then the fixing sleeve 15 is moved to the inner wall of the second retaining ring 7, the fixing sleeve 15 rotates for one circle in the same way, the fixing sleeve 15 avoids the second retaining plate 10 in the same way, the inner line of the gear is broken on the target paper surface through the pencil lead 14, and the drawing precision is improved by reversely rotating the drawing main body 3 for one circle, and finally, moving the device away, connecting the two ends of the drawn line break by means of an external ruler to form a gear, so that the purpose of improving the gear drawing efficiency is achieved, and similarly, gear models of different models are added to the periphery of the outline drawing main body 1, so that the model quantity of gear drawing can be increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A drawing tool for mechanical design, characterized in that: comprises an outer shape drawing main body (1), an inner shape drawing main body (2) and a drawing main body (3); appearance drawing main part (1) is including slab (4) and first separation blade (5), the inner wall of first separation blade (5) even fixed connection at slab (4), interior shape drawing main part (2) is including second fender ring (7), support frame (8), bearing (9) and second separation blade (10), the lower extreme fixed connection of support frame (8) is at the inner wall of second separation blade (10), the outer wall fixed connection of bearing (9) is in the upper end of support frame (8), the inner wall of second separation blade (10) even fixed connection at second fender ring (7), the outer wall fixed connection of second fender ring (7) is at the inner wall of first separation blade (5), drawing main part (3) are including bracing piece (11), pointer (12), pivot (13), pencil core (14), fixed cover (15), first fixed block (16), rocking arm (17), Second fixed block (20) and tension spring (21), the lower part outer wall fixed connection of bracing piece (11) is at the inner wall of bearing (9), bracing piece (11) rotate through bearing (9) and install the upper end in support frame (8), pivot (13) rotate and install the lower extreme inner wall at rocking arm (17), pencil core (14) scarf joint fixed mounting is at the lower extreme of fixed cover (15), the upper end fixed connection of fixed cover (15) is at the lower extreme of first fixed block (16), the outer wall fixed connection of first fixed block (16) is in the one end of tension spring (21), the outer wall of main part (2) is drawn at the inner shape to the other end fixed connection of tension spring (21), second fixed block (20) fixed connection is at the lower part outer wall of rocking arm (17), the outer end at pivot (13) is installed in the middle part rotation of fixed cover (15), the upper end of the rotating arm (17) is rotatably arranged at the rear part of the upper end of the supporting rod (11).

2. A drawing tool for mechanical design according to claim 1, wherein: the appearance drawing main body (1) further comprises a first baffle ring (6), and the second baffle ring (7) is fixedly connected to the upper wall of the plate (4).

3. A drawing tool for mechanical design according to claim 1, wherein: the drawing main body (3) further comprises a pointer (12), and the upper end of the pointer (12) is fixedly connected to the lower end of the supporting rod (11).

4. A drawing tool for mechanical design according to claim 1, wherein: the lower end of the support frame (8) is fixedly connected with an anti-skid needle.

5. A drawing tool for mechanical design according to claim 1, wherein: the drawing main body (3) further comprises a fastening knob (18), and the rear end of the fastening knob (18) penetrates through the upper end of the supporting rod (11) and is installed on the inner wall of the upper end of the rotating arm (17) in a threaded mode.

6. A drawing tool for mechanical design according to claim 1, wherein: the drawing main body (3) further comprises a handle (19), and the lower end of the handle (19) is fixedly connected to the upper end of the supporting rod (11).

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