CN215776307U - Drawing device for mechanical design - Google Patents

Abstract

The utility model discloses a drawing device for mechanical design, which comprises a bottom plate, wherein a support rod is movably connected to the outer side wall of a second bolt, the second bolt is rotatably connected to the inner side wall of a second fixing seat, the outer side wall of the second bolt is in threaded connection with a second nut, a fixing block is fixedly arranged on the lower side wall of a support leg, the length of each support rod is adjusted and locked during design, the length of each support leg is ensured, the length supported by each support leg is adjusted according to the position, the position of the bottom plate is ensured to be parallel to the horizontal plane, the mechanical design is more stable during drawing, the drawing effect is improved, the accuracy of the mechanical design is improved, when the work design is drawn, each support rod is taken into the support leg, the drawing device is more convenient to carry, and during plane drawing, the length and the angle of each support leg are adjusted, so that the drawing design is more comfortable.

Description

Drawing device for mechanical design

Technical Field

The utility model relates to the technical field of mechanical design, in particular to a drawing device for mechanical design.

Background

In the process of mechanical design, the designed content needs to be drawn on a drawing, then analysis is carried out according to the drawing, the designed content is manufactured through the drawing, when drawing is carried out, the drawing needs to be drawn by referring to a certain sample outdoors sometimes, and the drawing base plate needs to be adjusted to ensure the effect of the drawing, so that the drawing device for mechanical design is provided.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a drawing device for machine design to solve the problems of the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a drawing device for mechanical design comprises a bottom plate, wherein at least four first fixing seats are uniformly and symmetrically fixedly arranged on the lower side wall of the bottom plate, the inner side wall of each first fixing seat is rotatably connected with a first bolt, the outer side wall of each first bolt is movably connected with a supporting leg, the outer side wall of each first bolt is in threaded connection with a first nut, the supporting leg is sleeved on the outer side wall of a supporting rod, the supporting rod is slidably connected with the inner side wall of the supporting leg, the supporting rod penetrates through the lower side wall of the supporting leg and extends to the outside, the supporting rod is movably connected with the outer side wall of a second bolt, the second bolt is rotatably connected with the inner side wall of a second fixing seat, the outer side wall of the second bolt is in threaded connection with a second nut, a fixing block is fixedly arranged on the lower side wall of the supporting leg, a through hole is formed in the inner cavity of the fixing block, and a clamping rod is slidably connected with the inner side wall of the through hole of the fixing block, the utility model discloses a joint pole, including joint pole, clamping rod, limiting plate, the right side wall fixed mounting of clamping rod has the limiting plate, the one end of the first spring of left side wall fixedly connected with of limiting plate, the other end fixed mounting of first spring is in the right side wall of fixed block, first spring activity cup joints the lateral wall of clamping rod, the right side wall of bracing piece is even has seted up two at least draw-in grooves, the draw-in groove with the clamping rod is corresponding, the left side wall fixed mounting of limiting plate has the third fixing base, the inside wall fixed mounting of third fixing base has the fixed axle, the lateral wall swing joint of fixed axle has the gag lever post, the right side wall of landing leg is seted up flutedly, the gag lever post joint is in the inside wall of recess.

Preferably, the slotted hole has been seted up to the inner chamber bilateral symmetry of bottom plate, the inside wall sliding connection of slotted hole has the slide bar, two the fixed mounting of the one end bilateral symmetry of slide bar is at the lower lateral wall of pressure frame, two the fixed mounting of the other end bilateral symmetry of slide bar is at the last lateral wall of joint board, press the frame laminating to be in the last lateral wall of bottom plate, the one end of the fixedly connected with second spring of the last lateral wall bilateral symmetry of joint board, two the fixed connection of the other end bilateral symmetry of second spring is in the lower lateral wall of bottom plate.

Preferably, the upper side wall of the supporting rod is fixedly provided with a fourth fixing seat, the inner side wall of the fourth fixing seat is fixedly provided with a central shaft, the outer side wall of the central shaft is movably connected with a guide wheel, and the guide wheel is connected with the inner side wall of the supporting leg in a sliding manner.

Preferably, the last lateral wall fixed mounting of bottom plate has the tool holder, the left side wall longitudinal symmetry of tool holder is connected with the lid through the hinge rotation, the last lateral wall fixed mounting of lid has the handle, the fixed mounting of the equal longitudinal symmetry of right side wall of tool holder and lid has the buckle.

Preferably, the fixed mounting of symmetry has the light around the last lateral wall of bottom plate, the right side wall fixed mounting of bottom plate has the battery, the output of battery pass through the wire with the output electric connection of light, the back lateral wall fixed mounting of bottom plate has solar cell panel, solar cell panel pass through the wire with the input electric connection of battery.

Preferably, the front side wall of the pressing frame is uniformly provided with scale marks.

Compared with the prior art, the utility model has the beneficial effects that: a drawing device for mechanical design is characterized in that when the drawing device is used, a supporting rod is respectively pulled in each supporting leg, when the supporting rod is adjusted to a proper length, a limiting plate is moved towards the right side, so that a clamping rod is clamped in a clamping groove in a corresponding position, the length of each supporting rod is locked, the length of each supporting leg is ensured, the length supported by each supporting leg is adjusted according to the position, the position of a bottom plate is ensured to be parallel to a horizontal plane, the mechanical design is more stable during drawing, the drawing effect is improved, the accuracy of the mechanical design is improved, then each supporting leg is rotated by respectively taking a first bolt as a center, the angle of each supporting leg is adjusted, the levelness of the bottom plate is adjusted, each first nut is respectively rotated after the bottom plate is adjusted to a proper angle, and the angle of each supporting leg is locked by the threaded connection of the first nut and the first bolt, the stability of the mechanical design process is ensured, then each second fixing seat is rotated by taking the second bolt as a center respectively, the lower surface of each second fixing seat is attached to the placing surface, each second nut is rotated, the angle of each second fixing seat is locked through the threaded connection of the second nut and the second bolt, each second fixing seat is stably attached to the placing surface, the stability of the bottom plate is further improved, the drawing design is more stable, when the drawing of the work design is finished, the limiting plates are respectively pulled, the clamping rods are driven to be taken out from the clamping grooves through the limiting plates, then the limiting rods are rotated, the limiting rods are aligned to the grooves, then the elastic force of the first spring is utilized to drive the limiting plates to move, the limiting rods are clamped inside the grooves, each supporting rod is taken into the supporting leg, the shape of the device is reduced, and the drawing device is more convenient to carry, when the plane is drawn, through length and the angle of adjusting each landing leg, change the angle of bottom plate and horizontal plane, it is more comfortable when making the drawing design, upwards move when changing the drawing and press the frame, make and press the frame to drive the joint board through two slide bars and remove, make two second spring compressions and produce elasticity simultaneously, make and press the frame to leave from the upper surface of bottom plate, then place the upper surface at the bottom plate with the drawing, then loosen and press the frame, the elastic band that utilizes two second springs drives the joint board and removes, make the joint board drive through two slide bars and press the frame to remove, laminate the frame on the drawing, it is more convenient when making the drawing change, the use for relevant personnel brings the facility.

Drawings

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

FIG. 2 is a top view of the structure of the present invention.

Fig. 3 is a partial enlarged view of the portion a of the structural diagram of the present invention shown in fig. 1.

Description of reference numerals: 1. the solar cell panel comprises a bottom plate, 2, a pressing frame, 3, supporting legs, 4, supporting rods, 5, a storage battery, 6, a lighting lamp, 7, a box cover, 8, a handle, 9, a hinge, 10, a solar cell panel, 11, a tool box, 12, a first fixing seat, 13, a first nut, 14, a first bolt, 15, a second fixing seat, 16, a second bolt, 17, a second nut, 18, a clamping and connecting rod, 19, a buckle, 20, a slotted hole, 21, a sliding rod, 22, a guide wheel, 23, a fourth fixing seat, 24, a central shaft, 25, a second spring, 26, a clamping and connecting plate, 27, a scale mark, 28, a fixing block, 29, a clamping groove, 30, a groove, 31, a third fixing seat, 32, a fixing shaft, 33, a limiting plate, 34, a limiting rod, 35 and a first spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a drawing device for mechanical design comprises a bottom plate 1, at least four first fixing seats 12 are uniformly and symmetrically fixedly arranged on the lower side wall of the bottom plate 1, at least four first fixing seats 12 are uniformly and symmetrically fixedly arranged on four corners of the lower surface of the bottom plate 1, the inner side wall of each first fixing seat 12 is rotatably connected with a first bolt 14, the outer side wall of each first bolt 14 is movably connected with a supporting leg 3, through holes with the same shape and size are arranged at the upper end of each supporting leg 3 and the inner cavity of each first fixing seat 12, each first bolt 14 simultaneously penetrates through the through holes of the inner cavities of the supporting legs 3 and the through holes of the inner cavities of the first fixing seats 12, the outer side wall of each first bolt 14 is in threaded connection with a first nut 13, the outer surface of the part of each first bolt 14, which penetrates through the front surface of the corresponding first fixing seat 12, is in threaded connection with the first nut 13, and the supporting legs 3 are sleeved on the outer side wall of a supporting rod 4, the support rod 4 is connected with the inner side wall of the support leg 3 in a sliding manner, the support leg 3 is movably sleeved on the outer surface of the support rod 4, so that the support leg 3 can slide up and down on the outer surface of the support rod 4, the support rod 4 penetrates through the lower side wall of the support leg 3 and extends to the outside, the support rod 4 slides in the through hole on the lower surface of the support leg 3, the support rod 4 is movably connected with the outer side wall of the second bolt 16, the second bolt 16 is rotatably connected with the inner side wall of the second fixing seat 15, the outer side wall of the second bolt 16 is in threaded connection with a second nut 17, the outer surface of the part of the second bolt 16, which penetrates through the front surface of the second fixing seat 15, is in threaded connection with a second nut 17, the lower end of the support rod 4 and the inner cavity of the second fixing seat 15 are both provided with through holes with the same shape and size, the second bolt 16 simultaneously penetrates through the through hole in the inner cavity of the support rod 4 and the through hole in the inner cavity of the second fixing seat 15, so that the second bolt 16 rotates in the two through holes simultaneously, the lower side wall of the supporting leg 3 is fixedly provided with a fixed block 28, the inner cavity of the fixed block 28 is provided with a through hole, the inner side wall of the through hole of the fixed block 28 is connected with a clamping rod 18 in a sliding manner, the inner cavity of the fixed block 28 is transversely provided with a through hole penetrating through the inner cavity, the clamping rod 18 is attached to the inner wall of the through hole to slide, the right side wall of the clamping rod 18 is fixedly provided with a limit plate 33, the left side wall of the limit plate 33 is fixedly connected with one end of a first spring 35, the other end of the first spring 35 is fixedly arranged on the right side wall of the fixed block 28, the first spring 35 is movably sleeved on the outer side wall of the clamping rod 18, the clamping rod 18 transversely penetrates through the inner cavity of the fixed block 28, the part of the outer surface of the clamping rod 18 penetrating through the right outside of the fixed block 28 is movably sleeved with the first spring 35, and the fixed block 28 is fixedly connected with the limit plate 33 through the first spring 35, the right side wall of the supporting rod 4 is uniformly provided with at least two clamping grooves 29, the right side surface of the supporting rod 4 is sequentially and uniformly provided with a plurality of clamping grooves 29 with the same size from top to bottom, the clamping grooves 29 correspond to the clamping rods 18, the shape, the size and the position of each clamping rod 18 are uniformly corresponding to the clamping grooves 29, the clamping rods 18 can be clamped in the clamping grooves 29, the left side wall of the limiting plate 33 is fixedly provided with a third fixing seat 31, the inner side wall of the third fixing seat 31 is fixedly provided with a fixing shaft 32, the outer side wall of the fixing shaft 32 is movably connected with a limiting rod 34, the right end of the limiting rod 34 is provided with a through hole, the limiting rod 34 is movably sleeved on the outer surface of the fixing shaft 32 through the through hole, the limiting rod 34 rotates by taking the fixing shaft 32 as the center, the right side wall of the supporting leg 3 is provided with a groove 30, the lower end of the right side surface of the supporting leg 3 is provided with a groove 30 corresponding to the shape of the limiting rod 34, the limiting rod 34 is clamped on the inner side wall of the groove 30, when the length of each supporting leg 3 is adjusted by respectively pulling the supporting rod 4 in each supporting leg 3, when the length of the supporting rod 4 is adjusted, the supporting rod 4 drives the clamping grooves 29 on the right side surface to sequentially leak outside the supporting leg 3, when the supporting rod 4 is adjusted to a proper length, the limiting plate 33 is moved towards the right side, the limiting plate 33 drives the right end of the first spring 35 to stretch and generate elastic force, the limiting rod 34 is taken out from the groove 30, the limiting rod 34 is rotated by taking the fixed shaft 32 as the center, then the elastic force of the first spring 35 drives the limiting plate 33 to move, the limiting plate 33 drives the clamping rod 18 to move, the clamping rod 18 is clamped in the clamping grooves 29 on the corresponding position, the length of each supporting rod 4 is locked, and the length of each supporting leg 3 is ensured, the length supported by each supporting leg 3 is adjusted according to the position, the position of the bottom plate 1 is ensured to be parallel to the horizontal plane, the mechanical design is more stable when drawing is carried out, the drawing effect is improved, the accuracy of the mechanical design is improved, then each supporting leg 3 is rotated by taking a first bolt 14 as the center, the angle of each supporting leg 3 is adjusted, the levelness of the bottom plate 1 is adjusted to be a proper angle, each first nut 13 is rotated respectively, the angle of each supporting leg 3 is locked through the threaded connection of the first nut 13 and the first bolt 14, the stability of the mechanical design process is ensured, then each second fixing seat 15 is rotated by taking a second bolt 16 as the center, the lower surface of the second fixing seat 15 is attached to the placing surface, each second nut 17 is rotated, the angle of the second fixing seat 15 is locked through the threaded connection of the second nut 17 and the second bolt 16, make each stable laminating of second fixing base 15 on placing the face, and then improved bottom plate 1's stability, it is more stable when making the drawing design, when the work design drawing is ended, stimulate limiting plate 33 respectively, drive joint pole 18 through limiting plate 33 and take out from draw-in groove 29, then rotate gag lever post 34, aim at recess 30 with gag lever post 34, then utilize first spring 35's elasticity to drive limiting plate 33 and remove, make the inside of gag lever post 34 joint at recess 30, then with the inside of each bracing piece 4 income landing leg 3, reduce the shape of drawing device, it is more convenient when carrying to make the drawing device, in the plane drawing, through the length and the angle of adjusting each landing leg 3, change the angle of bottom plate 1 and horizontal plane, make more comfortable in the design.

Specifically, a slotted hole 20 is formed in the cavity of the bottom plate 1 in bilateral symmetry, a sliding rod 21 is connected to the inner side wall of the slotted hole 20 in a sliding manner, a slotted hole 20 penetrating through the cavity of the bottom plate 1 is longitudinally formed in the cavity of the bottom plate 1, the sliding rod 21 is attached to the inner wall of the slotted hole 20 to slide, one ends of two sliding rods 21 are fixedly installed on the lower side wall of the pressing frame 2 in bilateral symmetry, the other ends of two sliding rods 21 are fixedly installed on the upper side wall of the clamping plate 26 in bilateral symmetry, the pressing frame 2 is attached to the upper side wall of the bottom plate 1, the clamping plate 26 is fixedly connected with the pressing frame 2 through the sliding rods 21 at two symmetrical positions, one ends of second springs 25 are fixedly connected to the upper side wall of the clamping plate 26 in bilateral symmetry, the other ends of the two second springs 25 are fixedly connected to the lower side wall of the bottom plate 1 in bilateral symmetry, when the pressing frame 2 is moved upwards during mechanical design, so that the pressing frame 2 drives the clamping plate 26 to move through the two sliding rods 21, make two second springs 25 compression and production elasticity simultaneously for press frame 2 to leave from the upper surface of bottom plate 1, then place the upper surface at bottom plate 1 with the picture paper, then loosen and press frame 2, utilize the elasticity of two second springs 25 to drive joint board 26 and remove, make joint board 26 drive press frame 2 through two slide bars 21 and remove, will press frame 2 laminating on the drawing, it is more convenient when making the drawing change, the use for relevant personnel brings the facility.

Particularly, the last lateral wall fixed mounting of bracing piece 4 has fourth fixing base 23, the inside wall fixed mounting of fourth fixing base 23 has center pin 24, the outside wall swing joint of center pin 24 has leading wheel 22, leading wheel 22 sliding connection is at the inside wall of landing leg 3, when bracing piece 4 adjusts length, it rolls at the inner wall of landing leg 3 to drive the laminating of leading wheel 22 through fourth fixing base 23, the stability of bracing piece 4 has been improved, thereby the stability of bottom plate 1 has been improved, guarantee going on more steadily of mechanical design process.

Specifically, a tool box 11 is fixedly arranged on the upper side wall of the bottom plate 1, a box cover 7 is rotationally connected with the left side wall of the tool box 11 through a hinge 9 in a front-back symmetrical mode, a handle 8 is fixedly arranged on the upper side wall of the box cover 7, one part of the hinge 9 is fixedly connected with the box cover 7, the other part of the hinge 9 is fixedly connected with the tool box 11, two parts of the hinge 9 are rotationally connected through a rotating shaft, buckles 19 are fixedly arranged on the right side walls of the tool box 11 and the box cover 7 in a front-back symmetrical mode, tools for mechanical design are placed inside the tool box 11, then the handle 8 drives the box cover 7 to rotate, the tool box 11 is opened, the tool is taken out for design drawing, after using, place the instrument in the inside of tool holder 11, cover lid 7 and pin lid 7 and tool holder 11 through buckle 19, prevent that the instrument from dropping the outside when carrying for mechanical design's process is more convenient.

Particularly, the fixed mounting of bottom plate 1's last lateral wall longitudinal symmetry has light 6, the right side wall fixed mounting of bottom plate 1 has battery 5, battery 5's output passes through the output electric connection of wire with light 6, bottom plate 1's back lateral wall fixed mounting has solar cell panel 10, solar cell panel 10 passes through wire and battery 5's input electric connection, charge battery 5 through solar cell panel 10, supply power to light 6 through battery 5, energy saving, when lighting condition is not good, open light 6, make mechanical design's process clearer, improve drawing design's effect.

Particularly, the even scale mark 27 that is provided with of preceding lateral wall of pressure frame 2 makes more accurate when mechanical design draws through scale mark 27, and the use for relevant personnel brings the facility.

The working principle is as follows: when the length of the supporting legs 3 is adjusted, the supporting rods 4 are respectively pulled in the supporting legs 3, the length of each supporting leg 3 is adjusted, when the length of the supporting rods 4 is adjusted, the plurality of clamping grooves 29 on the right side surface are driven by the supporting rods 4 to sequentially leak out of the supporting legs 3, when the supporting rods 4 are adjusted to be proper length, the limiting plate 33 is moved towards the right side, the limiting plate 33 drives the right end of the first spring 35 to stretch out and generate elastic force, the limiting rod 34 is taken out of the groove 30, the limiting rod 34 is rotated by taking the fixing shaft 32 as the center, then the limiting plate 33 is driven by the elastic force of the first spring 35 to move, the limiting plate 33 drives the clamping rod 18 to move, the clamping rod 18 is clamped in the clamping grooves 29 on the corresponding position, the length of each supporting rod 4 is locked, the length of each supporting leg 3 is ensured, then each supporting leg 3 is rotated by taking the first bolt 14 as the center, adjusting the angle of each supporting leg 3 to adjust the levelness of the bottom plate 1, respectively rotating each first nut 13 after adjusting to a proper angle, connecting the first nut 13 with the first bolt 14 through the screw thread, locking the angle of each supporting leg 3, then respectively rotating each second fixing seat 15 by taking the second bolt 16 as the center, attaching the lower surface of the second fixing seat 15 to the placing surface, then rotating each second nut 17, locking the angle of the second fixing seat 15 through the screw thread connection of the second nut 17 and the second bolt 16, so that each second fixing seat 15 is stably attached to the placing surface, further improving the stability of the bottom plate 1, then moving the pressing frame 2 upwards, so that the pressing frame 2 drives the clamping plate 26 to move through the two sliding rods 21, and simultaneously enabling the two second springs 25 to compress and generate elasticity, so that the pressing frame 2 leaves from the upper surface of the bottom plate 1, then place the graph paper at the upper surface of bottom plate 1, then loosen and press frame 2, utilize the elastic force drive joint board 26 of two second springs 25 to remove, make joint board 26 drive through two slide bars 21 and press frame 2 to remove, will press frame 2 to laminate on the drawing, then carry out the drawing design, when work design drawing finishes, stimulate limiting plate 33 respectively, drive joint pole 18 through limiting plate 33 and take out from draw-in groove 29, then rotate gag lever post 34, aim at recess 30 with gag lever post 34, then utilize the elastic force drive limiting plate 33 of first spring 35 to remove, make the inside of gag lever post 34 joint at recess 30, then take in each bracing piece 4 the inside of landing leg 3, the shape of reduction device, it is more convenient to make the drawing device carry.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A drawing device for mechanical design, includes bottom plate (1), its characterized in that: the bottom plate is characterized in that at least four first fixing seats (12) are fixedly and symmetrically arranged on the lower side wall of the bottom plate (1), the inner side wall of each first fixing seat (12) is rotatably connected with a first bolt (14), the outer side wall of each first bolt (14) is movably connected with a supporting leg (3), the outer side wall of each first bolt (14) is in threaded connection with a first nut (13), each supporting leg (3) is sleeved on the outer side wall of a corresponding supporting rod (4), each supporting rod (4) is slidably connected with the inner side wall of each supporting leg (3), each supporting rod (4) penetrates through the lower side wall of each supporting leg (3) and extends to the outside, each supporting rod (4) is movably connected with the outer side wall of a second bolt (16), each second bolt (16) is rotatably connected with the inner side wall of a second fixing seat (15), and the outer side wall of each second bolt (16) is in threaded connection with a second nut (17), the lower side wall fixed mounting of landing leg (3) has fixed block (28), the through hole has been seted up to the inner chamber of fixed block (28), the inside wall sliding connection of fixed block (28) through hole has joint pole (18), the right side wall fixed mounting of joint pole (18) has limiting plate (33), the left side wall fixedly connected with one end of first spring (35) of limiting plate (33), the other end fixed mounting of first spring (35) is in the right side wall of fixed block (28), first spring (35) activity cup joints the lateral wall of joint pole (18), the right side wall of bracing piece (4) is even has seted up two at least draw-in grooves (29), draw-in groove (29) with joint pole (18) are corresponding, the left side wall fixed mounting of limiting plate (33) has third fixing base (31), the inside wall fixed mounting of third fixing base (31) has fixed axle (32), the outer side wall of the fixed shaft (32) is movably connected with a limiting rod (34), a groove (30) is formed in the right side wall of the supporting leg (3), and the limiting rod (34) is clamped on the inner side wall of the groove (30).

2. The drawing device for mechanical design according to claim 1, wherein: slotted hole (20) have been seted up to the inner chamber bilateral symmetry of bottom plate (1), the inside wall sliding connection of slotted hole (20) has slide bar (21), two the fixed mounting of the one end bilateral symmetry of slide bar (21) is at the lower lateral wall of pressing frame (2), two the fixed mounting of the other end bilateral symmetry of slide bar (21) is at the last lateral wall of joint board (26), press frame (2) laminating to be in the last lateral wall of bottom plate (1), the one end of the fixedly connected with second spring (25) of the last lateral wall bilateral symmetry of joint board (26), two the fixed connection of the other end bilateral symmetry of second spring (25) is in the lower lateral wall of bottom plate (1).

3. The drawing device for mechanical design according to claim 1, wherein: the utility model discloses a supporting leg, including bracing piece (4), the last lateral wall fixed mounting of bracing piece (4) has fourth fixing base (23), the inside wall fixed mounting of fourth fixing base (23) has center pin (24), the lateral wall swing joint of center pin (24) has leading wheel (22), leading wheel (22) sliding connection be in the inside wall of landing leg (3).

4. The drawing device for mechanical design according to claim 1, wherein: the utility model discloses a portable tool box, including bottom plate (1), bottom plate (11), hinge (9) rotation connection lid (7) of going up the lateral wall fixed mounting of bottom plate (1), the left side wall longitudinal symmetry of tool box (11) has handle (8), the lateral wall fixed mounting that goes up of lid (7) has buckle (19) of the equal longitudinal symmetry's of right side wall of tool box (11) and lid (7) fixed mounting.

5. The drawing device for mechanical design according to claim 1, wherein: the utility model discloses a solar energy storage device, including bottom plate (1), the fixed mounting of the upper side wall front and back symmetry of bottom plate (1) has light (6), the right side wall fixed mounting of bottom plate (1) has battery (5), the output of battery (5) pass through the wire with the output electric connection of light (6), the back lateral wall fixed mounting of bottom plate (1) has solar cell panel (10), solar cell panel (10) pass through the wire with the input electric connection of battery (5).

6. A drawing device for mechanical design according to claim 2, wherein: the front side wall of the pressing frame (2) is uniformly provided with scale marks (27).

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