CN211984370U

CN211984370U - Mathematics drawing desk

Info

Publication number: CN211984370U
Application number: CN202020377217.5U
Authority: CN
Inventors: 唐风军; 薛春玲; 张利利; 孙贵玲
Original assignee: Huanghe Science and Technology College
Current assignee: Huanghe Science and Technology College
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-11-24
Anticipated expiration: 2030-03-23

Abstract

The utility model relates to a mathematical drawing table, which effectively solves the problems that the drawing table is not easy to be carried, the height and the angle of the table top can not be adjusted according to the body types and the drawing requirements of different plotters, and the auxiliary drawing can not be carried out on the drawing of the plotters; the technical scheme includes that the table comprises a supporting seat and table legs, wherein the upper end of the supporting seat is rotatably connected with a table top, the upper end of the table top is fixedly connected with a limiting frame, a rectangular coordinate tie bar is fixedly connected in the limiting frame, coordinate scales are arranged on the rectangular coordinate tie bar, a longitudinal sliding ruler and a transverse sliding ruler are slidably connected around the upper end of the table top, a sliding gap exists between the longitudinal sliding ruler and the transverse sliding ruler, an adjusting screw rod is rotatably connected in the supporting seat, the adjusting screw rod is coaxially and fixedly connected with a rocking handle wheel rotatably connected to the rear end of the supporting seat, a sliding sleeve is in threaded fit with the adjusting screw rod, the upper end of the sliding sleeve; the utility model discloses the structure is succinct stable, has high universality.

Description

Mathematics drawing desk

Technical Field

The utility model relates to a learning tools technical field specifically is a mathematics drawing desk.

Background

The drawing is very extensive in the application in each field, also just also needs corresponding drawing table, all can not leave the drawing table to some construction sites, education institution and engineering design, and mathematical drawing is not big except using in the aspect of fine arts simultaneously, also very extensively in the application in other drawing fields, reaches the effect of other drawings through mathematical drawing, provides drawing basis and foreshadowing for the drawing in other fields.

The drawing table is not only applied to traditional teaching, but also not limited to indoor areas, and different users need to apply the drawing table to different working environments, so that higher requirements are provided for the size, portability and universality of the drawing table.

However, the existing drawing tables have the following problems:

1. needs to draw indoors, is inconvenient to carry, has an unadjustable desktop angle, has poor drawing experience for a drawer,

2. the height of the desk legs is not easy to adjust, and meanwhile, when the desk is positioned on the outdoor uneven bottom surface, the drawing desk is not in a horizontal state, and the applicability is poor;

3. the existing drawing table cannot perform auxiliary positioning on coordinates, a drawing person needs to find a point and position by means of an external tool, operation is troublesome, and the accuracy stratification degree is low.

Therefore, the utility model provides a mathematics drawing table solves the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a mathematics drawing desk, the effectual difficult transport of drawing desk of having solved can not adjust and can not draw to the drawing person and assist the drawing problem to the height and the angle of desktop to different drawing person's size and drawing demand.

The utility model discloses a supporting seat, four table legs fixedly connected at the supporting seat lower extreme, its characterized in that, the supporting seat upper end rotate and be connected with the desktop, the desktop upper end fixedly connected with spacing frame, the spacing frame in fixedly connected with rectangular coordinate tie rod, rectangular coordinate tie rod on seted up coordinate scale, the desktop upper end all seted up T-shaped slide rail all around, the T-shaped slide rail of fore-and-aft direction in sliding connection have a vertical slide ruler, the T-shaped slide rail of left and right direction in sliding connection have a horizontal slide ruler, there is a slip clearance vertical slide ruler and horizontal slide ruler;

the supporting seat internal rotation be connected with accommodate the lead screw, accommodate the lead screw with rotate and connect and be in the coaxial fixed connection of rocking handle wheel at supporting seat rear end, accommodate the lead screw on the screw-thread fit have a sliding sleeve, sliding sleeve upper end rotate and be connected with the dwang, the dwang other end with the desktop rotate and connect.

Preferably, the supporting seat is rotatably connected with the table legs, a primary connecting rod is rotatably connected to the supporting seat, a secondary connecting rod is rotatably connected to the other end of the primary connecting rod, and the other end of the secondary connecting rod is rotatably connected with the table legs;

one end of the first-stage connecting rod, which is far away from the supporting seat, is provided with a button sliding groove, the button sliding groove is connected with a locking button in a sliding way, the locking button is fixedly connected with a telescopic spring fixedly connected in the button sliding groove, and the second-stage rocker is provided with a pressing groove matched with the locking button;

the middle position of the front end of the supporting seat is fixedly connected with a handle.

Preferably, the two rear sides of the table legs are fixedly connected through a rear fixed cross beam, the two front sides of the table legs are fixedly connected through a front fixed cross beam, the lower ends of the table legs are provided with lifting screw rods, and the lower ends of the table legs are in threaded fit with lifting sleeves.

Preferably, the longitudinal sliding ruler and the transverse sliding ruler are marked with scales.

Preferably, the rectangular coordinate pole with the desktop can dismantle the connection, rectangular coordinate pole lower extreme fixedly connected with magnet strip, desktop upper end fixedly connected with the corresponding iron fixed strip of magnet strip.

Preferably, the supporting seat is internally and slidably connected with two storage boxes, and the front ends of the two storage boxes are fixedly connected with handles.

The utility model aims at solving the problems that the prior drawing table is not easy to be carried, can not adjust the height and angle of the table top and can not assist drawing for the drawing of the drawing person according to the body types and drawing requirements of different drawing persons, and solves the problems that the prior drawing table is inconvenient to move and carry by additionally arranging the folding table legs; the problem that the drawing table is placed horizontally on the uneven bottom surface is solved by additionally arranging the lifting sleeve; the problem of troublesome positioning and point finding process in the drawing process is solved by additionally arranging the slide sheet and the rectangular coordinate system; the utility model has convenient carrying, storage space, certain drawing tools, increased drawing precision and strong practicability; compared with the prior art, the utility model has the advantages that the cost is not increased or the technical effect is far more than the increase of the cost.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic perspective view of the desktop structure of the present invention.

Fig. 4 is a schematic perspective view of the rectangular coordinate system structure of the present invention.

Fig. 5 is a perspective view of the folding mechanism of the table leg of the present invention.

Fig. 6 is a schematic sectional view of the link transmission mechanism of the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 6. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The utility model provides a first embodiment, the utility model relates to a mathematical drawing table, including a support seat 1, four table legs 2 fixedly connected at the lower end of the support seat 1, the support seat 1 provides the fixed support function for the follow-up structure, the table legs 2 provide the fixed support function for the support seat 1, characterized in that, the upper end of the support seat 1 is rotatably connected with a table top 3, the upper end of the table top 3 is fixedly connected with a spacing frame 4, the spacing frame 4 is rectangular for spacing the drawing, ensure the drawing to be placed horizontally on the table top 3, the spacing frame 4 is internally fixedly connected with a rectangular coordinate tie bar 5, the rectangular coordinate system and the table top 3 are in clearance fit, ensure the drawing can be attached through the rectangular coordinate system and the spacing frame 4, the rectangular coordinate tie bar 5 is provided with a coordinate scale 6, the coordinate scale 6 provides scale reference for drawing, the coordinate position can be conveniently found in the drawing process, the hand-drawn coordinate scale 6 is omitted, the T-shaped slide rails 7 are arranged on the periphery of the upper end of the desktop 3, the longitudinal slide ruler 8 is connected in the front and back T-shaped slide rails 7 in a sliding manner, the embodiment provides a sliding connection mode, specifically, the lower end of the longitudinal slide ruler 8 is fixedly connected with a limiting block matched with the T-shaped slide rails 7, the lower end of the limiting block is rotatably connected with a sliding wheel matched with the T-shaped slide rails 7, the longitudinal slide ruler 8 slides along the T-shaped slide rails 7 under the action of the limiting block, the sliding wheel and the T-shaped slide rails 7, the left and right T-shaped slide rails 7 are connected with the transverse slide ruler 9 in a sliding manner, and the sliding connection mode is the same as the sliding connection mode of the longitudinal slide ruler 8, the longitudinal sliding ruler 8 and the transverse sliding ruler 9 have a sliding gap, so that the longitudinal sliding ruler 8 and the transverse sliding ruler 9 are prevented from interfering with each other in the sliding process, the longitudinal sliding ruler 8 and the transverse sliding ruler 9 are ensured to form a cross point smoothly, and the coordinate position in an orthogonal coordinate system is positioned;

in the drawing process, the angle of the tabletop 3 needs to be adjusted to meet the requirements of a plotter, and simultaneously, the labor intensity of the plotter can be reduced, the embodiment provides a structure for adjusting the angle of the tabletop 3, specifically, an adjusting screw rod 10 is rotationally connected to the supporting seat 1, the adjusting screw rod 10 is fixedly connected with a rocking handle wheel 11 which is rotationally connected to the rear end of the supporting seat 1, a sliding sleeve 12 is in threaded fit with the adjusting screw rod 10, a rotating rod 13 is rotationally connected to the upper end of the sliding sleeve 12, the other end of the rotating rod 13 is rotationally connected with the tabletop 3, the rocking handle wheel 11 is rotated to drive the adjusting screw rod 10 to rotate, and simultaneously, the rotating rod 13 and the tabletop 3 are rotationally connected to limit the sliding sleeve 12, so that the adjusting screw rod 10 rotates to drive the sliding sleeve 12 to slide back and forth, the sliding sleeve 12 slides to drive the rotating rod 13 to rotate and slide, and the rotating rod 13 drives the tabletop 3 to rotate around the supporting seat 1 in the sliding process to complete the adjustment of the angle of the tabletop 3;

in the embodiment, in a specific implementation, in an initial state, the desktop 3 is in a horizontal state, the transverse sliding ruler 9 is located at the foremost end of the desktop 3, the longitudinal sliding ruler 8 is located at the leftmost end of the desktop 3, firstly, a piece of paper is placed on the desktop 3, the lower end and the left end of the paper are both attached to the limiting frame 4, the rocking handle wheel 11 is rotated to drive the adjusting screw rod 10 to rotate, the adjusting screw rod 10 rotates to drive the sliding sleeve 12 to slide, the sliding sleeve 12 slides to drive the desktop 3 to rotate around the supporting seat 1 by a corresponding angle through the rotating rod 13, after the angle is adjusted to a proper angle, drawing is performed on a drawing paper, when a rectangular coordinate system needs to be established, the longitudinal sliding ruler 8 and the transverse sliding ruler 9 are slid to correspond to scales on the rectangular coordinate system, after the coordinate is positioned and the middle position is found, the transverse sliding ruler 9 and the longitudinal sliding ruler 8 are reset, and after drawing is finished, the rocking handle wheel 11 is rotated to drive the desktop 3 to reset through the adjusting screw rod 10, the sliding sleeve 12 and the rotating rod 13, so that the drawing paper is taken out.

In the second embodiment, on the basis of the first embodiment, because the drawing table has a limited use space and is inconvenient to carry due to the size problem of the drawing table, the embodiment provides a folding mode of the drawing table, specifically, the support base 1 is rotatably connected with the table legs 2 to facilitate folding the table legs 2, in order to ensure the stability of the table legs 2 after being unfolded, the support base 1 is rotatably connected with a primary connecting rod 14, the other end of the primary connecting rod 14 is rotatably connected with a secondary connecting rod 15, the other end of the secondary connecting rod 15 is rotatably connected with the table legs 2, and the table legs 2 are extended and retracted by rotation of the primary connecting rod 14 and the secondary connecting rod 15;

when the table top 3 is extended and contracted by the primary connecting rod 14 and the secondary connecting rod 15, in order to ensure that the stability of the table legs 2 does not shake, the embodiment provides a specific locking manner, specifically, one end of the primary connecting rod 14, which is far away from the supporting base 1, is provided with a button sliding groove 16, the button sliding groove 16 is connected with a locking button 17 in a sliding manner, the locking button 17 is fixedly connected with a telescopic spring 18 fixedly connected in the button sliding groove 16, the secondary rocker is provided with a pressing groove 19 matched with the button sliding groove 16, when the primary connecting rod 14 and the secondary connecting rod 15 are positioned on a straight line, the locking button 17 is bounced into the pressing groove 19 under the action of the telescopic spring 18 to lock the primary connecting rod 14 and the secondary connecting rod 15 to ensure the stability of the structure, when the table leg 2 needs to be folded, the locking button 17 is pressed through the pressing groove 19, the table leg 2 is folded at the same time, and the locking button 17 is pressed into the button sliding groove 16 to unlock the primary connecting rod 14 and the secondary connecting rod 15;

the middle position of the front end of the supporting seat 1 is fixedly connected with a handle 20, and the device is carried conveniently through the handle 20.

In the third embodiment, on the basis of the second embodiment, because of the difference of the body sizes of the plotters, the height of the table top 3 needs to be adjusted, and in the process of placing the device, the problem of shaking of the table top 3 can occur due to uneven ground, the embodiment provides a device for adjusting the height of the table top 3, specifically, the two rear side table legs 2 are fixedly connected through a rear fixing cross beam 21, the two front side table legs 2 are fixedly connected through a front fixing cross beam 22, so that the table legs 2 on the same side can be simultaneously extended and folded, the stability in the left and right directions is ensured, the lower ends of the table legs 2 are both provided with lifting screws 23, the lower ends of the table legs 2 are in threaded fit with lifting sleeves 24, the height of the table legs 2 can be adjusted by rotating the lifting sleeves 24, so as to adapt to the body sizes of the plotters, simultaneously when the ground is not at ordinary times, through rotating lifting sleeve 24 realize right the fine setting of the height of table leg 2, guarantee that the leveling of desktop 3 is unlikely to appear rocking, simultaneously desktop upper end fixedly connected with spirit level, conveniently make level to desktop 3.

Fourth embodiment, on the basis of first embodiment, when drawing, when need draw the horizontal line and the vertical line of certain length, need draw with the ruler, in order to reduce the operation process of plotter, vertical slide 8 and horizontal slide 9 on all mark the scale, when need draw horizontal line and vertical line, only need slide vertical slide 8 and horizontal slide 9 to the position that needs the drawing, then draw the line segment of corresponding length with the drawing pen, made things convenient for the plotter's drawing, reduced the time that the drawing consumed.

Fifth embodiment, on the basis of first embodiment, at the in-process of drawing, the plotter can make the drawing the displacement appear at the drawing in-process, leads to the scale location inaccurate and the problem of coordinate position deviation appears, and this embodiment provides a drawing fixed mode, and is specific, rectangular system coordinate pole with desktop 3 can dismantle the connection, rectangular system coordinate pole lower extreme fixedly connected with

magnet strip

25, 3 upper end fixedly connected with of desktop with the corresponding iron fixed strip of magnet strip 25, magnet strip 25 with the cooperation of iron fixed strip accomplish to press fixedly to the drawing, guarantee that the plotter can not appear skew and slide and lead to the inaccurate problem of coordinate location at the drawing in-process drawing.

Sixth embodiment, on the basis of first embodiment, at the in-process of drawing, need use various drawing tools, in order to facilitate carrying drawing tools simultaneously, this embodiment provides a mode of accomodating, specifically, supporting seat 1 in sliding connection have two receivers 26, two receiver 26 front end fixedly connected with handle 27, for the place and the accomodation of drawing tools of facilitating, receiver 26 in fixedly connected with corresponding the baffle of placing, guarantee that one instrument places the region.

When the device is used, in an initial state, the tabletop 3 is in a horizontal state, the transverse sliding ruler 9 is positioned at the foremost end of the tabletop 3, the longitudinal sliding ruler 8 is positioned at the leftmost side of the tabletop 3, the table legs 2 are in a folded state, firstly, the table legs 2 are in a vertical state by stretching the table legs 2, meanwhile, the locking buttons 17 are bounced into the pressing grooves 19 under the action of the expansion springs 18 to lock the primary connecting rods 14 and the secondary connecting rods 15, then, the lifting sleeve 24 is rotated to adjust the height of the device, after the adjustment is completed, the drawing is placed on the tabletop 3, the lower end and the left end of the drawing are both attached to the limiting frame 4, the drawing is fixed through the rectangular coordinate tie bar 5, after the drawing is fixed, the rocking handle wheel 11 is rotated to drive the adjusting screw rod 10 to rotate, accommodate the lead screw 10 rotate and drive slip sleeve 12 slide, slip sleeve 12 slide pass through dwang 13 drive desktop 3 wind supporting seat 1 rotate corresponding angle, adjust to suitable angle after, carry out the drawing on the drawing, when needs set up rectangular coordinate system and draw, through sliding vertical slide rule 8 and horizontal slide rule 9 make its correspond rectangular coordinate system on the scale, accomplish the location to the coordinate, after looking for the neutral position, with horizontal slide rule 9 and vertical slide rule 8 reset, when needs draw water flat line and vertical line, only need slide vertical slide rule 8 and horizontal slide rule 9 to the position department that needs the drawing, then draw the line segment of corresponding length with the drawing pen, after the drawing is accomplished, rotate rocking handle wheel 11 pass through accommodate the lead screw 10, slip sleeve 12, The rotating rod 13 drives the tabletop 3 to reset, the rectangular coordinate tie bar 5 is taken up, the drawing is taken out, then the locking button 17 is pressed to unlock the primary connecting rod 14 and the secondary connecting rod 15, and then the table legs 2 are pulled to fold the table legs 2.

Claims

1. A mathematical drawing desk, which comprises a supporting seat (1) and four desk legs (2) fixedly connected with the lower end of the supporting seat (1), it is characterized in that the upper end of the supporting seat (1) is rotatably connected with a desktop (3), the upper end of the desktop (3) is fixedly connected with a limit frame (4), a rectangular coordinate tie bar (5) is fixedly connected in the limit frame (4), coordinate scales (6) are arranged on the rectangular coordinate tie bar (5), T-shaped slide rails (7) are arranged on the periphery of the upper end of the desktop (3), a longitudinal sliding ruler (8) is connected in the T-shaped sliding rail (7) in front of and behind the desktop (3) in a sliding way, the T-shaped slide rails (7) at the left side and the right side of the desktop (3) are connected with a transverse slide rule (9) in a sliding way, a sliding gap exists between the longitudinal sliding ruler (8) and the transverse sliding ruler (9);

supporting seat (1) internal rotation be connected with accommodate the lead screw (10), accommodate the lead screw (10) with rotate and connect and be in supporting seat (1) rear end shake handle wheel (11) coaxial fixed connection, accommodate the lead screw (10) on screw-thread fit have sliding sleeve (12), sliding sleeve (12) upper end rotate and be connected with dwang (13), dwang (13) the other end with desktop (3) rotate and connect.

2. A mathematical drawing table as claimed in claim 1, wherein the support base (1) is rotatably connected to the table leg (2), the support base (1) is rotatably connected to a primary link (14), the other end of the primary link (14) is rotatably connected to a secondary link (15), and the other end of the secondary link (15) is rotatably connected to the table leg (2);

one end of the primary connecting rod (14) far away from the supporting seat (1) is provided with a button sliding groove (16), the button sliding groove (16) is connected with a locking button (17) in a sliding manner, the locking button (17) is fixedly connected with a telescopic spring (18) fixedly connected in the button sliding groove (16), and the secondary connecting rod (15) is provided with a pressing groove (19) matched with the locking button (17);

the middle position of the front end of the supporting seat (1) is fixedly connected with a handle (20).

3. A mathematical drawing table according to claim 2, wherein the two rear side legs (2) are fixedly connected by a rear fixing beam (21), the two front side legs (2) are fixedly connected by a front fixing beam (22), the lower ends of the legs (2) are provided with lifting screws (23), and the lower ends of the legs (2) are in threaded fit with lifting sleeves (24).

4. A mathematical drawing table according to claim 1, wherein the longitudinal slide (8) and the transverse slide (9) are marked with graduations.

5. A mathematical drawing table according to claim 1, wherein said cartesian tie bar (5) is detachably connected to said table top (3), a magnet bar (25) is fixedly connected to the lower end of said cartesian tie bar (5), and an iron fixing bar corresponding to said magnet bar (25) is fixedly connected to the upper end of said table top (3).

6. A mathematical drawing table as claimed in claim 1, wherein two storage boxes (26) are slidably connected to the supporting base (1), and a handle (27) is fixedly connected to the front ends of the two storage boxes (26).