CN113349554A

CN113349554A - Automatic office device for engineering drawing and regulation and control method thereof

Info

Publication number: CN113349554A
Application number: CN202110689038.4A
Authority: CN
Inventors: 彭嵩; 叶剑云
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-09-07

Abstract

The invention discloses an automatic office device for engineering drawing and a regulation and control method thereof, wherein the automatic office device comprises an office table and an office chair, and the automatic office device is characterized in that the office table comprises an operation table capable of lifting up and down and turning over, the upper end surface of the operation table is provided with an installation table in a left-right sliding manner along the length direction of the operation table, the upper end surface of the installation table is provided with a table top in a sliding manner along the front-back direction of the operation table, the upper end surface of the table top is movably provided with two oppositely arranged and oppositely moving compression rollers, two groups of installation components respectively corresponding to the two compression rollers are fixed on the side wall of the table top, and rotating shafts of the two compression rollers are respectively and rotatably connected with the corresponding installation components.

Description

Automatic office device for engineering drawing and regulation and control method thereof

Technical Field

The invention relates to an automatic office device, in particular to an automatic office device for engineering drawing and a regulating and controlling method thereof.

Background

Office supplies, which refer to auxiliary supplies used in daily work, are mainly applied to enterprise units, and cover a wide variety of products, including: documents and archives, desktop articles, office equipment, financial articles, consumables and other articles related to work. The office supply industry in China is gradually developing towards industrialization and large scale, the quality of the produced products has international market competitiveness, and a new development opportunity is met along with the continuous expansion of the demand market and the increase of export.

The comparatively important office supplies of desk, the desk is the enterprise, the cause unit, indispensable office equipment in operational environment such as government office, along with the development of society and economy, more and more people all need use the computer official working, people are also higher and higher to the requirement of desk, not only require the material of desk, size, the colour shows office quality, and require the desk can enough carry out the document and write and can carry out computer operation, but ordinary office table is to the personnel that need make engineering drawing or mechanical drawing, can not adjust direction and angle, when the drawing is too big, the staff need bend over work at the in-process that uses, often shift position, reduce work efficiency, and the staff uses inconveniently.

Disclosure of Invention

Based on the defects in the prior art mentioned in the background art, the invention provides the automatic office device for engineering drawing and the regulating and controlling method thereof, and the device is more convenient and faster for a user to use by regulating the heights of the chair surface and the desktop and turning, moving left and right and back and forth the desktop.

The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps: the utility model provides an engineering drawing is with automatic official working device, including desk and office chair, its characterized in that, the desk is including the operation panel of oscilaltion and upset, the operation panel up end is provided with the mount table along its length direction horizontal slip, the mount table up end slides along the preceding back direction of operation panel and is provided with the desktop, the up end activity of desktop is provided with two relative settings and relative motion's compression roller, be fixed with on the lateral wall of desktop two sets of installation component corresponding with two compression rollers respectively, two the pivot of compression roller rotates with the installation component that corresponds respectively and is connected.

As a further scheme of the invention, one of the mounting assemblies is provided with a first mounting plate through a fixing part, a second mounting plate and a third mounting plate are oppositely arranged on the lower end surface of the first mounting plate, the second mounting plate is fixed on the lower end surface of the first mounting plate, the third mounting plate is hinged on the lower end surface of the first mounting plate, a winding drum is rotatably arranged between the second mounting plate and the third mounting plate, two ends of the winding drum respectively rotatably penetrate through the second mounting plate and the third mounting plate, a first rotating shaft is sleeved on the inner wall of the winding drum, a sliding drum is slidably sleeved on the outer wall of the winding drum, one end of the first rotating shaft slidably penetrates out of the winding drum, a bolt is arranged at the sliding penetrating position, a handle is vertically hinged on the outer wall of the sliding drum, one side wall of the handle is connected with the outer wall of the sliding drum through a first guide rod, a first spring is sleeved on the outer wall of the first guide rod, and an arc-shaped clamping plate is vertically fixed on the other side wall of the handle, the inner wall of the arc-shaped clamping plate is attached to the outer wall of the winding drum along the length direction of the winding drum, a plurality of first through grooves are formed in the side wall of the winding drum, first sliding blocks are arranged in the first through grooves in a sliding mode, a connecting plate is fixed to one end, located in the winding drum, of each first sliding block, a cambered surface is arranged at one end, located in the winding drum, of each first sliding block, the connecting plate is connected with one end of a second spring, the other end of the second spring is connected with the inner wall of the winding drum, a plurality of protruding blocks which correspond to the first sliding blocks in a one-to-one mode are fixed to the outer wall of the first rotating shaft, the protruding blocks are in sliding contact with the connecting plates and the side wall, a second sliding block is fixed to the outer wall of the sliding drum, the second sliding block is sleeved on the outer wall of the first sliding rod in a sliding mode, one end of the first sliding rod is fixed to the second mounting plate, the other end of the first sliding rod is attached to the side wall of the third mounting plate, and a third spring is sleeved on the outer wall of the first sliding rod, third spring one end is fixed at second mounting panel lateral wall, and the other end is fixed at second slider lateral wall, reel and two compression roller parallel arrangement, and still be provided with the fan that a plurality of was fixed terminal surface under the first mounting panel between reel and an adjacent compression roller.

As a further scheme of the invention, the mounting assembly comprises a fourth mounting plate, a fifth mounting plate, a clip-shaped chute, a first telescopic rod, a first connecting rod, a first motor, a first bevel gear set, a first transmission rod and a third slide block;

two the fourth mounting panel is relative installation respectively on the lateral wall around the desktop, and still is fixed with the fifth mounting panel between two fourth mounting panels, two all set up back the shape spout and correspond with the both ends of compression roller pivot respectively along the length direction of desktop on the lateral wall that the fourth mounting panel kept away from each other, the third slider slides and sets up in returning the shape spout, the both ends of compression roller pivot are connected with the third slider that corresponds through a head rod respectively, the both ends of first transfer line rotate respectively and pass two fourth mounting panels that set up relatively and all are fixed with first telescopic link, the flexible end and the third slider of first telescopic link are connected, first motor is located the lower terminal surface of desktop and fixes on fifth mounting panel lateral wall, and its output shaft is connected with first transfer line transmission through first awl gear train.

As a further scheme of the invention, a cavity is arranged in the mounting table and is positioned between two oppositely arranged mounting assemblies, a second through groove is formed in the upper end surface of the mounting table along the front-back direction of the table top, a second connecting rod is fixed on the lower end surface of the table top, one end, far away from the table top, of the second connecting rod penetrates through the second through groove in a sliding mode and is fixed with a first threaded sleeve, the first threaded sleeve is sleeved on the outer wall of a first threaded rod in a threaded mode, one end of the first threaded rod is rotatably arranged on the inner wall of the cavity of the mounting table, and a first rotary table is fixed in the cavity, through which the other end of the first threaded rod penetrates out of the mounting table in a rotating mode.

As a further scheme of the invention, a cavity is arranged in the operating platform, a third through groove is formed in the upper end surface of the operating platform along the left and right length directions of the table top, a third connecting rod is fixed on the lower end surface of the mounting platform, one end, far away from the mounting platform, of the third connecting rod penetrates through the third through groove in a sliding mode, a second threaded sleeve is fixed on the third through groove in a fixed mode, the second threaded sleeve is sleeved on the outer wall of a second threaded rod in a threaded mode, two ends of the second threaded rod are respectively and rotatably arranged on the inner wall of the cavity of the operating platform, one end of the second threaded rod is further in transmission connection with one end of a second transmission rod through a second bevel gear set, the other end of the second transmission rod penetrates through the side wall of the cavity of the operating platform in a rotating mode and is fixed with a second turntable, and a plurality of drawers are further arranged in the cavity of the operating platform in a sliding mode.

As a further scheme of the present invention, the office apparatus further includes a third threaded rod, a fourth threaded rod, a third threaded sleeve, a fourth threaded sleeve, a lifting table, a first rotating rod, a second rotating rod, a third rotating rod, a first sliding chute, a fourth sliding block, a third bevel gear set, a second sliding rod, a first clamping strip, a first sleeve, a second sleeve, a third sleeve, a fourth sleeve, a first clamping hole, a second motor, a third transmission rod, a fourth bevel gear set, a fifth bevel gear set, a sixth bevel gear set, and a hollow base;

the left side wall and the right side wall of the operating platform are respectively fixed with a first rotating rod, one end of each of the two first rotating rods, which is far away from the operating platform, rotatably penetrates through the lifting platform, the second motor is positioned in the cavity of the hollow base, the output shaft of the second motor is connected with one end of a third transmission rod, the other end of the third transmission rod is rotatably connected with the inner wall of the cavity of the hollow base, the third transmission rod is respectively in transmission connection with a first sleeve and a second sleeve through a fourth bevel gear set and a fifth bevel gear set, one ends of the first sleeve and the second sleeve, which are far away from the fourth bevel gear set and the fifth bevel gear set, respectively penetrate through the upper end face of the hollow base and are rotatably sleeved with a third threaded sleeve and a fourth threaded sleeve, the sleeved positions are respectively provided with a bolt, one ends of the third threaded sleeve and the fourth threaded sleeve, which are far away from the first sleeve and the second sleeve, are respectively in threaded sleeve with a third threaded rod and a fourth threaded rod, one end of each of the third threaded rod and the fourth threaded rod, which is far away from the third threaded sleeve and the fourth threaded sleeve, is in transmission connection with the lifting tables on the left side and the right side of the operating platform respectively through a sixth bevel gear set and one end of a third sleeve, the other end of the third sleeve penetrates through the upper end surface of the hollow base and is in rotating fit with one end of a fourth sleeve, a bolt is arranged at the fitting position, the other end of the fourth sleeve is in sliding fit with one end of a second sliding rod, the other end of the second sliding rod is in rotating fit with a lifting plate fixed on one side wall of the lifting platform and is in transmission connection with one end of a second rotating rod through the third bevel gear set, the other end of the second rotating rod sequentially rotates to penetrate through the two lifting tables, a third rotating rod is vertically fixed on the outer wall of the second rotating rod, one end of the third rotating rod, which is far away from the second rotating rod, is hinged with a fourth sliding block, a first sliding groove is formed in the lower end surface of the operating platform along the direction parallel to the length of the third rotating rod, the fourth sliding block is arranged in the first sliding groove in a sliding mode, a clamping strip is fixed on the outer wall of the second sliding rod along the length direction of the second sliding rod, and a clamping hole in sliding fit with the clamping strip is formed in the fourth sleeve.

As a further scheme of the invention, an electric telescopic rod is further installed in the cavity of the hollow base, a sensor is fixed at the telescopic end of the electric telescopic rod, the sensor reciprocates along the stroke from the upper end face of the hollow base to the upper end face of the desktop, and a second sliding groove for moving the office chair is formed in the upper end face of the hollow base along the front-back direction of the desktop.

As a further scheme of the invention, the office chair comprises a sliding seat, a chair surface, a first telescopic rod, a fifth thread sleeve, a fifth threaded rod, a fifth sleeve, a third spring, a third sliding rod, a second sliding strip, a second clamping hole, a fourth transmission rod, a fifth transmission rod, a sixth sleeve, a seventh bevel gear set, an eighth bevel gear set, a ninth bevel gear set and a seventh sleeve;

the sliding seat is arranged in the second sliding groove in a sliding manner through a sliding plate fixed on the lower end face of the sliding seat, one end of the first telescopic rod is fixed on the upper end face of the sliding seat, the other end of the first telescopic rod is fixed on the lower end face of the chair face, one end of the sixth sleeve is rotatably arranged in the cavity of the hollow base, the other end of the sixth sleeve rotatably penetrates through the cavity of the hollow base and is embedded in the upper end face of the hollow base, one end of the fifth sleeve is slidably arranged on the upper end face of the hollow base, the other end of the fifth threaded rod is rotatably sleeved with one end of a fifth threaded sleeve, the other end of the fifth threaded sleeve is fixedly arranged on the lower end face of the chair face, one end of the third sliding rod is provided with an arc face and can be embedded in the upper end face of the hollow base with the sixth sleeve in a sliding manner, and the other end of the third sleeve and one end of the third spring are fixedly sleeved with one end of the fifth sleeve in a sliding manner, the other end of the third spring is connected with the inner wall of the fifth sleeve, a second sliding strip is fixed on the outer wall of the third sliding rod along the length direction of the outer wall of the third sliding rod, second clamping holes in sliding fit with the second sliding strip are formed in the inner walls of the fifth sleeve and the sixth sleeve, the outer wall of the sixth sleeve is in transmission connection with one end of a fourth transmission rod through a seventh bevel gear set, the other end of the fourth transmission rod is in transmission connection with one end of the fifth transmission rod through an eighth bevel gear set, the other end of the fifth transmission rod is rotatably sleeved with one end of the seventh sleeve, a bolt is further arranged at the sleeved position, and the other end of the seventh sleeve is in transmission connection with the outer wall of the third transmission rod through a ninth bevel gear set.

As a further aspect of the present invention, the method for controlling an automated office apparatus for engineering drawing is characterized in that the method comprises the following specific steps:

step 1, a user sits on the office chair and slides the office chair along the second sliding groove to a position where the second sliding strip is clamped with the second clamping hole;

step 2, the sensor collects the bending angle data of the legs of the user along the up-and-down movement, and the lifting height of the chair seat is calculated according to the following formula after the processor receives the bending angle data of the legs:

x＝cos(α-90)y

x-is the lifting height of the chair seat;

y-is the length from the knee to the sole of the foot of the user in a relaxed state;

alpha-is the most comfortable bending angle data of the user's leg;

according to the calculated lifting height of the chair seat, the processor controls the second motor to adjust the height of the chair seat;

step 3, after the height adjustment of the chair surface is finished, the sensor moves up and down to collect the bending angle data of the arm of the user, the processor receives the bending angle data of the arm and then calculates the lifting height of the desktop according to the lifted chair surface height, and the processor controls the second motor to adjust the height of the desktop;

and 4, after the heights of the tabletop and the chair surface are adjusted to the comfortable use state of the user, the user can adjust the turnover angle of the tabletop through the second motor by controlling the processor.

After adopting the structure, compared with the prior art, the invention has the advantages that:

1. when drawing paper is rolled and stored, a handle 11 is pressed to compress a first spring 12, an arc-shaped clamping plate 13 is used for clamping a short edge of the drawing paper, a first rotating shaft 9 is rotated to enable a lug 18 to be abutted against the side wall of a connecting plate 16 to push a first sliding block 15 out of a first through groove 14, a winding drum 8 is rotated after a bolt is fixed to roll the drawing paper, meanwhile, in the rolling process, pencil ash and eraser scraps on the drawing paper are blown off or pen ink is blown to prevent damage to the drawing paper in the rolling process, the neatness of the drawing paper is ensured, after the drawing paper is rolled, a third mounting plate is separated from one end of the winding drum by turning over the third mounting plate, then the bolt is loosened to rotate the first rotating shaft, the lug is separated from the side wall of the connecting plate, the first sliding block retracts into the winding drum, and the middle diameter of the rolled drawing paper is larger than the diameter of the winding drum, then the sliding cylinder is slid to push the paper cylinder out of the winding drum, so that the wound drawing can be conveniently taken down, and the structure is simple and the operation is convenient;

2. the desktop is adjusted to move from front to back in the front of the upper end face of the operating table by rotating the first rotary table and the second rotary table, so that the inconvenience of frequent position moving caused by overlarge drawing is avoided for the staff in the drawing process, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the structure of the winding drum, the first rotating shaft and the arc-shaped clamping plate of the present invention.

FIG. 3 is a schematic structural diagram of the winding drum, the first rotating shaft, the bump, and the first sliding block according to the present invention.

Fig. 4 is a schematic structural diagram of an operation table, a mounting table and a second motor of the invention.

Fig. 5 is a schematic structural view of the first and second threaded rods of the present invention.

FIG. 6 is a schematic structural view of the clip-shaped chute and the fourth mounting plate of the present invention.

Figure 7 is a bottom view of the table top of the present invention.

Fig. 8 is a schematic structural view of a fourth sliding block and a first sliding chute of the invention.

Fig. 9 is a schematic structural view of the first clip strip and the first clip hole of the present invention.

Fig. 10 is a schematic structural view of an office chair of the present invention.

Fig. 11 is a schematic structural view of a fifth sleeve and a sixth sleeve of the present invention.

Fig. 12 is a schematic structural view of a second card strip and a second card hole of the present invention.

In the figure: 1-an operation table; 2-mounting a platform; 3-a desktop; 4-a press roll; 5-a first mounting plate; 6-a second mounting plate; 7-a third mounting plate; 8-a reel; 9-a first rotating shaft; 10-a slide cylinder; 12-a first spring; 13-arc splint; 14-a first through slot; 15-a first slider; 16-a connecting plate; 17-a second spring; 18-a bump; 19-a second slide; 20-a first slide bar; 21-a third spring; 22-a fourth mounting plate; 23-a fifth mounting plate; 24-a clip-shaped chute; 25-a first telescoping rod; 26-a first connecting rod; 27-a first motor; 28-a first bevel gear set; 29-a first transfer lever; 30-a third slide block; 31-a second through slot; 32-a second connecting rod; 33-a first threaded sleeve; 34-a first threaded rod; 35-a first carousel; 36-a third through slot; 37-a third connecting rod; 38-a second threaded sleeve; 39-a second threaded rod; 40-a second bevel gear set; 41-a second transmission rod; 42-a second carousel; 43-a drawer; 44-a third threaded rod; 45-fourth threaded rod; 46-a third thread bush; 47-a fourth thread bush; 48-a lifting platform; 49-first rotating bar; 50-a second rotating rod; 51-a third rotating rod; 52-a first runner; 53-fourth slider; 55-third bevel gear set; 56-a second slide bar; 57-a first card strip; 58-a first sleeve; 59-a second sleeve; 60-a first card hole; 61-a second motor; 62-a third drive link; 63-a fourth bevel gear set; 64-a fifth bevel gear set; 65-a sixth bevel gear set; 66-a hollow base; 67-a third sleeve; 68-a fourth sleeve; 69-a sensor; 70-a second chute; 71-a slide; 72-a chair surface; 73-a first telescopic rod; 74-a fifth thread bush; 75-a fifth threaded rod; 76-a fifth sleeve; 77-a third spring; 78-a third slide bar; 79-second runner; 80-a second card hole; 81-a seventh sleeve; 82-a fourth transmission rod; 83-a fifth transmission rod; 84-a sixth sleeve; 85-a seventh bevel gear set; 86-eighth bevel gear set; 87-ninth bevel gear set.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

As shown in fig. 1 to 12, in an embodiment of the present invention, an automatic office device for engineering drawing includes an office table and an office chair, the office table includes an operation table 1 capable of ascending and descending and turning up and down, an installation table 2 is slidably installed on an upper end surface of the operation table 1 left and right along a length direction thereof, a table top 3 is slidably installed on an upper end surface of the installation table 2 along a front and back direction of the operation table 1, two compression rollers 4 which are oppositely installed and relatively move are movably installed on an upper end surface of the table top 3, two sets of installation components corresponding to the two compression rollers 4 are fixed on a side wall of the table top 3, and rotation shafts of the two compression rollers 4 are rotatably connected to the corresponding installation components;

the mounting table 2 can drive the tabletop 3 to move left and right on the upper end face of the operating table 1, and the tabletop 3 can move back and forth on the upper end face of the mounting table 2.

In the embodiment of the invention, one of the mounting assemblies is provided with a first mounting plate 5 through a fixing part, the lower end surface of the first mounting plate 5 is oppositely provided with a second mounting plate 6 and a third mounting plate 7, the second mounting plate 6 is fixed on the lower end surface of the first mounting plate 5, the third mounting plate 7 is hinged on the lower end surface of the first mounting plate 5, a reel 8 is rotatably arranged between the second mounting plate 6 and the third mounting plate 7, two ends of the reel 8 respectively rotatably penetrate through the second mounting plate 6 and the third mounting plate 7, the inner wall of the reel 8 is sleeved with a first rotating shaft 9, the outer wall is slidably sleeved with a sliding barrel 10, one end of the first rotating shaft 9 slidably penetrates through the reel 8, a bolt 11 is arranged at the sliding penetrating position, the outer wall of the sliding barrel 10 is vertically hinged with a handle 11, one side wall of the handle 11 is connected with the outer wall of the sliding barrel 10 through a first guide rod, the outer wall of the first guide rod is sleeved with a first spring 12, the other side wall of the handle 11 is vertically fixed with an arc-shaped clamping plate 13, the inner wall of the arc-shaped clamping plate 13 is attached to the outer wall of the winding drum 8 along the length direction of the winding drum 8, the side wall of the winding drum 8 is provided with a plurality of first through grooves 14, a plurality of first sliding blocks 15 are arranged in the first through grooves 14 in a sliding manner, one ends of the first sliding blocks 15, which are positioned in the winding drum 8, are fixed with connecting plates 16, one ends of the first sliding blocks 15, which are positioned in the winding drum 8, are provided with arc surfaces, the connecting plates 16 are connected with one ends of second springs 17, the other ends of the second springs 17 are connected with the inner wall of the winding drum 8, the outer wall of the first rotating shaft 9 is fixed with a plurality of protruding blocks 18 which are in one-to-one correspondence with the first sliding blocks 15, the protruding blocks 18 are in sliding contact with the side wall of the connecting plates 16, and the outer wall of the sliding drum 10 is also fixed with a second sliding block 19, the second sliding block 19 is sleeved on the outer wall of the first sliding rod 20 in a sliding manner, one end of the first sliding rod 20 is fixed on the second mounting plate 6, the other end of the first sliding rod 20 is attached to the side wall of the third mounting plate 7, a third spring 21 is further sleeved on the outer wall of the first sliding rod 20, one end of the third spring 21 is fixed on the side wall of the second mounting plate 6, the other end of the third spring 21 is fixed on the side wall of the second sliding block 19, the winding drum 8 is arranged in parallel with the two compression rollers 4, and a plurality of fans fixed on the lower end face of the first mounting plate 5 are further arranged between the winding drum 8 and one adjacent compression roller 4;

when the drawing is required to be rolled and stored, the rubber slag on the drawing on the fan machine passing through the lower end face of the first mounting plate 5 is blown off or the ink of the pen is dried. Then, the first spring 12 is compressed by pressing the handle 11, the short edge of the drawing is clamped by the arc-shaped clamping plate 13, the first rotating shaft 9 is rotated, the bump 18 on the first rotating shaft 9 is abutted to the connecting plate 16 and the side wall, the first sliding block 15 is pushed out of the first through groove 14, the bolt is fixed, the drawing is wound by the winding drum 8, after winding, the third mounting plate 7 is turned over, the third mounting plate 7 is separated from one end of the winding drum 8, the bolt is loosened, the first rotating shaft 9 is rotated, the bump 18 is separated from the side wall of the connecting plate 16, the first sliding block 15 retracts into the winding drum 8 through the first through groove 14 under the reset effect of the second spring 17, the middle diameter of the wound drawing is larger than that of the winding drum 8, and then the sliding drum 10 is pushed out of the winding drum 8.

In the embodiment of the present invention, the mounting assembly includes a fourth mounting plate 22, a fifth mounting plate 23, a clip chute 24, a first telescopic rod 25, a first connecting rod 26, a first motor 27, a first bevel gear set 28, a first transmission rod 29, and a third sliding block 30;

the two fourth mounting plates 22 are respectively and oppositely mounted on the front and rear side walls of the table top 3, a fifth mounting plate 23 is fixed between the two fourth mounting plates 22, the side walls of the two fourth mounting plates 22 which are far away from each other are respectively provided with a clip-shaped chute 24 along the length direction of the table top 3 and respectively correspond to the two ends of the rotating shaft of the compression roller 4, the third sliding blocks 30 are arranged in the clip-shaped sliding grooves 24 in a sliding manner, two ends of the rotating shaft of the press roll 4 are respectively connected with the corresponding third sliding blocks 30 through a first connecting rod 26, two ends of the first transmission rod 29 respectively penetrate through the two oppositely arranged fourth mounting plates 22 in a rotating way and are fixed with first telescopic rods 25, the telescopic end of the first telescopic rod 25 is connected with the third sliding block 30, the first motor 27 is positioned on the lower end face of the tabletop 3 and fixed on the side wall of the fifth mounting plate 23, and the output shaft of the first motor is in transmission connection with the first transmission rod 29 through the first bevel gear set 28;

start two relative first motors 27 that set up simultaneously and be positive and negative motor, thereby two first transfer lines 29 of simultaneous transmission drive third slider 30 respectively and slide in returning the shape spout 24, thereby make two relative compression roller 4 that set up keep the certain distance with the up end of desktop 3 when the relative motion, two relative compression roller 4 that set up are when the motion of keeping away from mutually, its outer wall and the laminating of the up end of desktop 3, thereby the smooth expansion of picture is at the up end of desktop 3, compression roller 4 that sets up just fixes the up end at desktop 3 with two relative limits of drawing when the farthest distance at two relative compression roller 4.

In the embodiment of the invention, a cavity is arranged in the mounting table 2 and is positioned between two oppositely arranged mounting components, a second through groove 31 is formed in the upper end surface of the mounting table 2 along the front-back direction of the table top 3, a second connecting rod 32 is fixed on the lower end surface of the table top 3, one end, far away from the table top 3, of the second connecting rod 32 slides through the second through groove 31 and is fixed with a first threaded sleeve 33, the first threaded sleeve 33 is sleeved on the outer wall of the first threaded rod 34 in a threaded manner, one end of the first threaded rod 34 is rotatably arranged on the inner wall of the cavity of the mounting table 2, and a first rotating disc 35 is fixed in the cavity of the mounting table 2 through which the other end of the first threaded rod 34 rotates;

thereby rotate first threaded rod 34 through first carousel 35 and drive second connecting rod 32 through first threaded sleeve 33 and remove in logical groove 31 of second to drive desktop 3 and slide along the length direction in second logical groove 3 at the up end of mount table 2, simultaneously, desktop 3 drives installation component and reel 8 and removes together.

In the embodiment of the invention, a cavity is arranged in the operating platform 1, a third through groove 36 is formed in the upper end surface of the operating platform along the left and right length directions of the desktop 3, a third connecting rod 37 is fixed on the lower end surface of the mounting platform 2, one end of the third connecting rod 37, which is far away from the mounting platform 2, slides through the third through groove 36 and is fixed with a second threaded sleeve 38, the second threaded sleeve 38 is sleeved on the outer wall of a second threaded rod 39 in a threaded manner, two ends of the second threaded rod 39 are respectively and rotatably arranged on the inner wall of the cavity of the operating platform 1, one end of the second threaded rod is in transmission connection with one end of a second transmission rod 41 through a second bevel gear set 40, the other end of the second transmission rod 41 rotates to penetrate through the side wall of the cavity of the operating platform 1 and is fixed with a second turntable 42, and a plurality of drawers 43 are also slidably arranged in the cavity of the operating platform 1;

the second transmission rod 41 is rotated through the second turntable 42 to drive the second bevel gear set 4 to drive the second threaded rod 39 to rotate, so that the third connecting rod 37 is driven by the second threaded sleeve 38 to slide in the third through groove 36, the mounting table 2 is driven to slide in the length direction of the third through groove 36 on the upper end face of the operating table 1, the length direction of the third through groove 36 is perpendicular to the length direction of the second through groove 31, and the table top 3 is driven to move while the mounting table 2 moves.

In the embodiment of the present invention, the office apparatus further includes a third threaded rod 44, a fourth threaded rod 45, a third threaded sleeve 46, a fourth threaded sleeve 47, a lifting table 48, a first rotating rod 49, a second rotating rod 50, a third rotating rod 51, a first sliding slot 52, a fourth sliding block 53, a third bevel gear set 55, a second sliding rod 56, a first clamping bar 57, a first sleeve 58, a second sleeve 59, a third sleeve 67, a fourth sleeve 68, a first clamping hole 60, a second motor 61, a third driving rod 62, a fourth bevel gear set 63, a fifth bevel gear set 64, a sixth bevel gear set 65, and a hollow base 66;

the left side wall and the right side wall of the operating platform 1 are respectively fixed with a first rotating rod 49, one end of each of the two first rotating rods 49, which is far away from the operating platform 1, rotates to penetrate through the lifting platform 48, the second motor 61 is positioned in the cavity of the hollow base 66, the output shaft of the second motor is connected with one end of the third transmission rod 62, the other end of the third transmission rod 62 is rotatably connected with the inner wall of the cavity of the hollow base 66, the third transmission rod 62 is respectively in transmission connection with a first sleeve 58 and a second sleeve 59 through a fourth bevel gear set 63 and a fifth bevel gear set 64, one ends of the first sleeve 58 and the second sleeve 59, which are far away from the fourth bevel gear set 63 and the fifth bevel gear set 64, respectively penetrate through the upper end face of the hollow base 66 and are rotatably sleeved with a third threaded sleeve 46 and a fourth threaded sleeve 47, the sleeved positions are respectively provided with a bolt, and the third threaded sleeve 46 and the fourth threaded sleeve 47, which are far away from the first sleeve 58 and the second threaded sleeve 58, One end of the second sleeve 59 is respectively sleeved with a third threaded rod 44 and a fourth threaded rod 45 in a threaded manner, one ends of the third threaded rod 44 and the fourth threaded rod 45, which are far away from the third threaded sleeve 46 and the fourth threaded sleeve 47, are respectively fixed with the lower end faces of the lifting platforms 48 on the left side and the right side of the operating platform 1, the third transmission rod 62 is further in transmission connection with one end of a third sleeve 67 through a sixth bevel gear set 65, the other end of the third sleeve 67 penetrates through the upper end face of the hollow base 66 and is in transmission sleeved with one end of a fourth sleeve 68, a bolt is arranged at the sleeved position, the other end of the fourth sleeve 68 is in sliding sleeved with one end of the second sliding rod 56, the other end of the second sliding rod 56 rotates to pass through a lifting plate fixed on one side wall of the lifting platform 48 and is in transmission connection with one end of the second rotating rod 50 through a third bevel gear set 55, the other end of the second rotating rod 50 sequentially rotates to pass through the two lifting platforms 48, a third rotating rod 51 is vertically fixed on the outer wall of the second rotating rod 50, a fourth sliding block 53 is hinged to one end, far away from the second rotating rod 50, of the third rotating rod 51, a first sliding groove 52 is formed in the lower end face of the operating platform 1 along the direction parallel to the length direction of the third rotating rod 51, the fourth sliding block 53 is arranged in the first sliding groove 52 in a sliding mode, a clamping strip 57 is fixed on the outer wall of the second sliding rod 56 along the length direction of the second sliding rod, and a clamping hole 60 in sliding fit with the clamping strip 57 is formed in the fourth sleeve 68;

the second motor 61 is started to drive the positive and negative motor, the third transmission rod 62 respectively transmits the first sleeve 58 and the second sleeve 59 through the fourth bevel gear set 63 and the fifth bevel gear set 64, the bolt at the position is fixed to drive the third threaded sleeve 46 and the fourth threaded sleeve 47 to rotate, so that the third threaded rod 44 and the fourth threaded rod 45 are respectively transmitted to drive the two lifting platforms 48 to move up and down so as to realize the up-and-down lifting of the operation platform 1, the height of the table top 3 is adjusted, meanwhile, two side walls of the operation platform 1 are rotatably arranged on the two lifting platforms 48 through the first rotating rod 49, so that the third sleeve 67 is fixed through the bolt on the third sleeve 67, the third sleeve 68 is driven to rotate by the sixth bevel gear set 65 under the transmission effect, the fourth sleeve 68 is in sliding fit when sliding up and down through the clamping strip 57 fixed on the outer wall of the second sliding rod 56 and the clamping hole 60, the third bevel gear set 55 is transmitted to drive the second rotating rod 50 to rotate under the rotation effect of clamping during rotation, thereby drive fourth slider 53 through third bull stick 51 and slide in first spout 52 to realize that operation panel 1 overturns, the staff of being convenient for operations such as drawing.

In the embodiment of the invention, an electric telescopic rod is further installed in the cavity of the hollow base 66, a sensor 69 is fixed at the telescopic end of the electric telescopic rod, the sensor 69 reciprocates along the stroke from the upper end face of the hollow base 66 to the upper end face of the desktop 3, and a second chute 70 for moving the office chair is formed in the upper end face of the hollow base 66 along the front-back direction of the desktop 3;

the sensor 69 moves up and down under the action of the electric telescopic rod to collect the bending data of the legs of the arm bending machine of the worker, the processor controls the second motor 61 to automatically adjust the height of the office chair and the office table to be the most comfortable position for the user, and meanwhile, the desktop 3 is turned to a proper angle to work.

In the embodiment of the present invention, the office chair includes a sliding seat 71, a seat 72, a first telescopic rod 73, a fifth threaded sleeve 74, a fifth threaded rod 75, a fifth sleeve 76, a third spring 77, a third sliding rod 78, a second sliding bar 79, a second clamping hole 80, a fourth transmission rod 82, a fifth transmission rod 83, a sixth sleeve 84, a seventh bevel gear set 85, an eighth bevel gear set 86, a ninth bevel gear set 87, and a seventh sleeve 81;

the sliding base 71 is slidably arranged in the second sliding groove 70 through a sliding plate fixed on the lower end face of the sliding base 71, one end of the first telescopic rod 73 is fixed on the upper end face of the sliding base 71, the other end of the first telescopic rod is fixed on the lower end face of the seat 72, one end of the sixth sleeve 84 is rotatably arranged in the cavity of the hollow base 66, the other end of the sixth sleeve 84 is rotatably penetrated through the cavity of the hollow base 66 and is embedded on the upper end face of the hollow base 66, one end of the fifth sleeve 76 is slidably arranged on the upper end face of the hollow base 66, the other end of the fifth sleeve is rotatably penetrated through the sliding base 71 and is fixed with one end of the fifth threaded rod 75, the other end of the fifth threaded rod 75 is in threaded fit with one end of the fifth threaded sleeve 74, the other end of the fifth threaded sleeve 74 is fixed on the lower end face of the seat 72, one end of the third sliding rod 78 is provided with an arc face and can be embedded on the upper end face of the hollow base 66 with the sixth sleeve 84, the other end of the fifth sleeve 76 and one end of the third spring 77 is slidably fit with one end of the fifth sleeve 76, the other end of the third spring 77 is connected with the inner wall of the fifth sleeve 76, a second sliding bar 79 is fixed on the outer wall of the third sliding rod 78 along the length direction of the third sliding bar, second clamping holes 80 in sliding fit with the second sliding bar 79 are formed in the inner walls of the fifth sleeve 76 and the sixth sleeve 84, the outer wall of the sixth sleeve 84 is in transmission connection with one end of a fourth transmission rod 82 through a seventh bevel gear set 85, the other end of the fourth transmission rod 82 is in transmission connection with one end of a fifth transmission rod 83 through an eighth bevel gear set 86, the other end of the fifth transmission rod 83 is rotatably sleeved with one end of a seventh sleeve 81, a bolt is further arranged at the sleeved position, and the other end of the seventh sleeve 81 is in transmission connection with the outer wall of the third transmission rod 62 through a ninth bevel gear set 87;

the slide carriage 71 slides in the second slide groove 70, a sliding end of the fifth sleeve 76 and an embedding end of the sixth sleeve 84 are abutted to each other, the third slide rod 78 is in sliding fit when the second slide bar 79 and the second clamping hole 80 slide up and down under the action of the third spring 77, and under the action of clamping during rotation, a sliding end of the third slide rod 78 is clamped with the sixth sleeve 84, so that the second motor 61 drives the sixth sleeve 84 to rotate through the third transmission rod 62, the seventh sleeve 81, the ninth bevel gear set 87, the fifth transmission rod 83, the eighth bevel gear set 86, the fourth transmission rod 82 and the seventh bevel gear set 85, the fifth slide rod 78 and the fifth sleeve 76 drive the fifth threaded rod 75 to rotate, and therefore, under the action of the fifth threaded sleeve 74, the chair seat 72 is lifted up and down, and the height of the office chair is adjusted.

In an embodiment of the present invention, the method for controlling an automated office device for engineering drawing is characterized by comprising the following specific steps:

x＝cos(α-90)y

x-is the lifting height of the chair seat;

alpha-is the most comfortable bending angle data of the user's leg;

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims

1. The utility model provides an engineering drawing is with automatic official working device, including desk and office chair, its characterized in that, the desk is including operation panel (1) that can the oscilaltion and upset, operation panel (1) up end is provided with mount table (2) along its length direction horizontal slip, the preceding back direction slip of operation panel (1) is provided with desktop (3) along mount table (2) up end, the up end activity of desktop (3) is provided with two relative settings and relative motion's compression roller (4), be fixed with on the lateral wall of desktop (3) two sets of installation component corresponding with two compression rollers (4) respectively, two the pivot of compression roller (4) rotates with the installation component that corresponds respectively and is connected.

2. The automatic office device for engineering drawing according to claim 1, wherein one of the mounting assemblies is provided with a first mounting plate (5) through a fixing member, a second mounting plate (6) and a third mounting plate (7) are oppositely arranged on the lower end face of the first mounting plate (5), the second mounting plate (6) is fixed on the lower end face of the first mounting plate (5), the third mounting plate (7) is hinged on the lower end face of the first mounting plate (5), a winding drum (8) is rotatably arranged between the second mounting plate (6) and the third mounting plate (7), two ends of the winding drum (8) respectively rotatably penetrate through the second mounting plate (6) and the third mounting plate (7), a first rotating shaft (9) is sleeved on the inner wall of the winding drum (8), a sliding sleeve is arranged on the outer wall of the winding drum (8), one end of the first rotating shaft (9) slidably penetrates through the winding drum (8), a bolt is arranged at the sliding penetrating position, a handle (11) is vertically hinged to the outer wall of the sliding barrel (10), one side wall of the handle (11) is connected with the outer wall of the sliding barrel (10) through a first guide rod, a first spring (12) is sleeved on the outer wall of the first guide rod, an arc-shaped clamping plate (13) is vertically fixed to the other side wall of the handle (11), the inner wall of the arc-shaped clamping plate (13) is attached to the outer wall of the winding barrel (8) along the length direction of the winding barrel (8), a plurality of first through grooves (14) are formed in the side wall of the winding barrel (8), a plurality of first sliding blocks (15) are arranged in the first through grooves (14) in a sliding mode, a connecting plate (16) is fixed to one end of the winding barrel (8), an arc surface is arranged at one end of the winding barrel (8), and the connecting plate (16) is connected with one end of a second spring (17), the other end and reel (8) inner wall connection of second spring (17), be fixed with lug (18) of a plurality of and first slider (15) one-to-one on first pivot (9) outer wall, lug (18) and connecting plate (16) and lateral wall sliding contact, the outer wall of slide cartridge (10) still is fixed with second slider (19), second slider (19) sliding sleeve is established at first slide bar (20) outer wall, first slide bar (20) one end is fixed on second mounting panel (6), the other end and the laminating of third mounting panel (7) lateral wall, first slide bar (20) outer wall still overlaps and is equipped with third spring (21), third spring (21) one end is fixed at second mounting panel (6) lateral wall, and the other end is fixed at second slider (19) lateral wall, reel (8) and two compression roller (4) parallel arrangement, and still be provided with a plurality of between reel (8) and adjacent one (4) and fix at first mounting panel (21) 5) A fan on the lower end surface.

3. The automatic office equipment for engineering drawing according to claim 1, wherein the mounting assembly comprises a fourth mounting plate (22), a fifth mounting plate (23), a zigzag chute (24), a first telescopic rod (25), a first connecting rod (26), a first motor (27), a first bevel gear set (28), a first transmission rod (29) and a third slide block (30);

two fourth mounting panels (22) are respectively and relatively installed on the front and back side walls of the desktop (3), a fifth mounting panel (23) is further fixed between the two fourth mounting panels (22), the two fourth mounting panels (22) are mutually far away from the side walls, a rectangular sliding groove (24) is formed in the length direction of the desktop (3) and corresponds to the two ends of a rotating shaft of the compression roller (4) respectively, the third sliding block (30) is arranged in the rectangular sliding groove (24) in a sliding manner, the two ends of the rotating shaft of the compression roller (4) are connected with the corresponding third sliding block (30) through a first connecting rod (26) respectively, the two ends of the first transmission rod (29) are respectively and rotatably penetrate through the two correspondingly arranged fourth mounting panels (22) and are respectively and fixedly provided with first telescopic rods (25), the telescopic ends of the first telescopic rods (25) are connected with the third sliding blocks (30), the first motor (27) is positioned on the lower end face of the desktop (3) and is fixed on the side wall of the fifth mounting panel (23), the output shaft of the gear box is in transmission connection with a first transmission rod (29) through a first bevel gear set (28).

4. The automatic office device for engineering drawing according to claim 1, wherein a cavity is formed in the mounting table (2) and located between two oppositely arranged mounting assemblies, a second through groove (31) is formed in the upper end face of the mounting table (2) along the front-back direction of the table top (3), a second connecting rod (32) is fixed to the lower end face of the table top (3), one end, far away from the table top (3), of the second connecting rod (32) penetrates through the second through groove (31) in a sliding mode and is fixed with a first threaded sleeve (33), the outer wall of the first threaded rod (34) is sleeved with the first threaded sleeve (33) in a threaded mode, one end of the first threaded rod (34) is rotatably arranged on the inner wall of the cavity of the mounting table (2), and a first rotary disc (35) is fixed to the cavity, and the other end of the first threaded rod penetrates through the mounting table (2) in a rotating mode.

5. The automatic office device for engineering drawing according to claim 4, wherein a cavity is arranged in the operation table (1), a third through groove (36) is formed in the upper end surface of the operation table (1) along the left and right length direction of the table top (3), a third connecting rod (37) is fixed on the lower end surface of the installation table (2), one end of the third connecting rod (37) far away from the installation table (2) slides through the third through groove (36) and is fixed with a second threaded sleeve (38), the second threaded sleeve (38) is sleeved on the outer wall of the second threaded rod (39) in a threaded manner, two ends of the second threaded rod (39) are respectively and rotatably arranged on the inner wall of the cavity of the operation table (1), one end of the second threaded rod is in transmission connection with one end of a second transmission rod (41) through a second bevel gear set (40), the other end of the second transmission rod (41) is rotatably penetrated through the side wall of the cavity of the operation table (1) and is fixed with a second turntable (42), a plurality of drawers (43) are also arranged in the cavity of the operating platform (1) in a sliding manner.

6. The automatic office device for engineering drawing according to claim 5, wherein the office device further comprises a third threaded rod (44), a fourth threaded rod (45), a third threaded sleeve (46), a fourth threaded sleeve (47), a lifting table (48), a first rotating rod (49), a second rotating rod (50), a third rotating rod (51), a first sliding chute (52), a fourth sliding block (53), a third bevel gear set (55), a second sliding rod (56), a first clamping strip (57), a first sleeve (58), a second sleeve (59), a third sleeve (67), a fourth sleeve (68), a first clamping hole (60), a second motor (61), a third driving rod (62), a fourth bevel gear set (63), a fifth bevel gear set (64), a sixth bevel gear set (65) and a hollow base (66);

the left side wall and the right side wall of the operating platform (1) are respectively fixed with first rotating rods (49), one ends, far away from the operating platform (1), of the first rotating rods (49) rotate to penetrate through the lifting platform (48), the second motor (61) is located in a cavity of the hollow base (66), an output shaft of the second motor is connected with one end of a third transmission rod (62), the other end of the third transmission rod (62) is rotatably connected with the inner wall of the cavity of the hollow base (66), the third transmission rod (62) is respectively in transmission connection with a first sleeve (58) and a second sleeve (59) through a fourth bevel gear set (63) and a fifth bevel gear set (64), one ends, far away from the fourth bevel gear set (63) and the fifth bevel gear set (64), of the first sleeve (58) and the second sleeve (59) penetrate through the upper end face of the hollow base (66) respectively and are rotatably sleeved with a third threaded sleeve (46), A fourth thread sleeve (47) and the sleeving parts are all provided with bolts, one ends of the third thread sleeve (46) and the fourth thread sleeve (47) far away from the first sleeve (58) and the second sleeve (59) are respectively sleeved with a third threaded rod (44) and a fourth threaded rod (45) in a threaded manner, one ends of the third threaded rod (44) and the fourth threaded rod (45) far away from the third thread sleeve (46) and the fourth thread sleeve (47) are respectively fixed with the lower end faces of the lifting tables (48) at the left side and the right side of the operating table (1), the third transmission rod (62) is also in transmission connection with one end of a third sleeve (67) through a sixth bevel gear set (65), the other end of the third sleeve (67) penetrates through the upper end face of the hollow base (66) and is rotatably sleeved with one end of a fourth sleeve (68), the sleeving part is provided with a bolt, and the other end of the fourth sleeve (68) is slidably sleeved with one end of a second sliding rod (56), the other end of the second sliding rod (56) passes through a lifting plate fixed on the side wall of one lifting platform (48) in a rotating way and is connected with one end of the second rotating rod (50) in a transmission way through a third bevel gear set (55), the other end of the second rotating rod (50) sequentially rotates to penetrate through the two lifting platforms (48), a third rotating rod (51) is vertically fixed on the outer wall of the second rotating rod (50), a fourth sliding block (53) is hinged to one end, far away from the second rotating rod (50), of the third rotating rod (51), a first sliding chute (52) is arranged on the lower end surface of the operating platform (1) along the direction parallel to the length of the third rotating rod (51), the fourth sliding block (53) is arranged in the first sliding groove (52) in a sliding manner, a clamping strip (57) is fixed on the outer wall of the second sliding rod (56) along the length direction thereof, the fourth sleeve (68) is internally provided with a clamping hole (60) which is in sliding fit with the clamping strip (57).

7. The automatic office device for engineering drawing according to claim 6, wherein an electric telescopic rod is further installed in the cavity of the hollow base (66), a sensor (69) is fixed to the telescopic end of the electric telescopic rod, the sensor (69) reciprocates along the stroke from the upper end face of the hollow base (66) to the upper end face of the table top (3), and a second chute (70) for moving an office chair is formed in the upper end face of the hollow base (66) along the front-back direction of the table top (3).

8. The automatic office device for engineering drawing according to claim 7, wherein the office chair comprises a sliding seat (71), a chair seat (72), a first telescopic rod (73), a fifth threaded sleeve (74), a fifth threaded rod (75), a fifth sleeve (76), a third spring (77), a third sliding rod (78), a second sliding strip (79), a second clamping hole (80), a fourth transmission rod (82), a fifth transmission rod (83), a sixth sleeve (84), a seventh bevel gear set (85), an eighth bevel gear set (86), a ninth bevel gear set (87) and a seventh sleeve (81);

the sliding seat (71) is arranged in the second sliding groove (70) in a sliding mode through a sliding plate fixed to the lower end face of the sliding seat (71), one end of a first telescopic rod (73) is fixed to the upper end face of the sliding seat (71), the other end of the first telescopic rod is fixed to the lower end face of the seat face (72), one end of a sixth sleeve (84) is rotatably arranged in a cavity of the hollow base (66), the other end of the sixth sleeve (84) rotatably penetrates through the cavity of the hollow base (66) and is embedded into the upper end face of the hollow base (66), one end of a fifth sleeve (76) is slidably arranged on the upper end face of the hollow base (66), the other end of the fifth sleeve (76) rotatably penetrates through the sliding seat (71) and is fixed to one end of a fifth threaded rod (75), the other end of the fifth threaded rod (75) is in threaded sleeve fit with one end of a fifth threaded sleeve (74), the other end of the fifth threaded sleeve (74) is fixed to the lower end face of the seat face (72), one end of a third sliding rod (78) is provided with an arc face and can be in fit with the sixth sleeve (84) in a sliding fit manner on the upper end face of the hollow base (66) The other end of the third sliding rod (78) is fixed with one end of a fifth sleeve (76) and one end of a third spring (77) and is sleeved with one end of the fifth sleeve (76) in a sliding mode, the other end of the third spring (77) is connected with the inner wall of the fifth sleeve (76), a second sliding strip (79) is fixed on the outer wall of the third sliding rod (78) along the length direction of the third sliding rod, second clamping holes (80) in sliding fit with the second sliding strip (79) are formed in the inner walls of the fifth sleeve (76) and the sixth sleeve (84), the outer wall of the sixth sleeve (84) is in transmission connection with one end of a fourth transmission rod (82) through a seventh bevel gear set (85), the other end of the fourth transmission rod (82) is in transmission connection with one end of a fifth transmission rod (83) through an eighth bevel gear set (86), the other end of the fifth transmission rod (83) is rotatably sleeved with one end of a seventh sleeve (81), and a bolt is further arranged at the sleeved position, the other end of the seventh sleeve (81) is in transmission connection with the outer wall of the third transmission rod (62) through a ninth bevel gear set (87).

9. The method for controlling the automatic office equipment for engineering drawing according to any one of claims 1 to 8, wherein the method comprises the following steps:

x＝cos(α-90)y

x-is the lifting height of the chair seat;

alpha-is the most comfortable bending angle data of the user's leg;