CN114145572A

CN114145572A - Multifunctional student desk with lifting adjusting function and using method thereof

Info

Publication number: CN114145572A
Application number: CN202111453383.4A
Authority: CN
Inventors: 尚静
Original assignee: Jiangsu Furong Technology Business Incubation Management Co ltd
Current assignee: Jiangsu Furong Technology Business Incubation Management Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-03-08

Abstract

The invention discloses a multifunctional desk with a lifting adjusting function for students, and belongs to the technical field of desks. When launching the desktop, there is the contained angle between equipment board and the backup pad, the contained angle changes through linking the adjustment of mechanism, setting through adjustment mechanism, when can making the fixed plate adjust with the activity strip, hoisting device's adjustment elasticity degree, setting through the elasticity post, when the fixed plate, when the activity strip carries out relative angular adjustment with adjustment mechanism, it is opposite with the rotation angle of desktop, the equipment board is folded through linking the hinge strip this moment, and folding angle is opposite for the angular folding of desktop, the user is at the angle that the desktop was launched to the accessible, adjust the angle of equipment board simultaneously, can increase user's privacy because of seting up of adjusting plate, avoid can't concentrate in spirit under the other people state of gazing, hoisting device's practicality.

Description

Multifunctional student desk with lifting adjusting function and using method thereof

Technical Field

The invention relates to the technical field of desks, in particular to a multifunctional desk with a lifting adjusting function for students and a using method thereof.

Background

Desks are tables for writing or reading, usually provided with drawers, compartments and document holders, which are essential items for learning. The table is a common furniture, and is provided with a plane on the upper part and a pillar on the lower part. Can put things or do things on it. There are smooth plates, furniture held by legs or other supports for eating, writing, working or playing cards.

Patent No. CN201920004033.1 discloses a novel multifunctional desk for student, including desktop, connecting rod subassembly, telescopic link and bracing piece subassembly, the desktop lower extreme is provided with lining connecting rod subassembly, the connecting rod subassembly is connected with the bracing piece subassembly through the telescopic link, the desktop comprises first plate body and second plate body, first plate body sets up to the rectangle, the second plate body sets up to two the even setting of second plate body in the both sides of first plate body, the rear side of first plate body up end is provided with opening line box up. This patent has solved the peripheral electric wire intercrossing winding of desk and has had the incident, and then the effectual flexibility that improves the device. But can not solve the problem that the elbow of the user is in the non-support state for a long time to cause arm fatigue.

In view of this, we propose a multifunctional desk for students with lifting adjustment function and a using method thereof.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a multifunctional desk with lifting adjusting function for students and a using method thereof, so as to solve the problems in the background technology.

2. Technical scheme

The utility model provides a student uses multifunctional desk with adjust raising and lowering functions, includes supporting leg, desktop and adjustment mechanism, the up end and the desktop laminating of supporting leg, the inner chamber of desktop sets up adjustment mechanism, the desktop includes backup pad, linking mechanism and adjusting plate, the side of backup pad is through linking mechanism and adjusting plate swing joint.

Preferably, the supporting plate comprises a plate body, a containing cavity and an inner concave edge groove, the containing cavity is formed in the upper end face of the plate body, and the inner concave edge groove is formed in the side end of the containing cavity.

Preferably, the supporting plate further comprises an edge open cavity, and the edge open cavity is formed in both sides of the side end face of the supporting plate and the side end face of the adjusting plate.

Preferably, the linking mechanism comprises a fixed sheet plate, an installation buckle, a linking belt, a movable strip and an adjusting mechanism, the installation buckle is arranged at each of two ends of the fixed sheet plate, the bottom end of one side of the fixed sheet plate is movably connected with one end of the movable strip through the linking belt, and the adjusting mechanism is arranged on the other side of the movable strip in a penetrating mode.

Preferably, adjustment mechanism includes mounting plate, elastic column, bearing block and through hole, the mounting plate laminating is in bottom face one side of activity strip, the elastic column is run through to the centre of mounting plate, the top of elastic column and the lower terminal surface laminating of bearing block, the through hole is transversely seted up to the inner chamber of bearing block.

Preferably, the adjusting mechanism comprises assembling plates, connecting hinge strips and supporting soft strips, the assembling plates are connected through the connecting hinge strips arranged in an array mode, and the supporting soft strips are arranged on two sides of the bottom end face of each assembling plate.

Preferably, the other end of the supporting soft strip is attached to the inner cavity wall of the supporting plate and the inner cavity wall of the adjusting plate, and the supporting soft strip is a member made of synthetic rubber.

Preferably, the angle adjustment is performed between the fixing sheet plate and the adjusting plate by using a connecting mechanism as a fulcrum, and the maximum angle difference between the fixing sheet plate and the adjusting plate is a degree.

Preferably, the assembling plates are connected through a connecting hinge strip, the angle adjustment can be performed on the assembling plates through the connecting hinge strip, and the maximum angle adjustment is plus or minus 120 degrees.

The invention provides another technical scheme that: the use method of the multifunctional desk with the lifting adjusting function for the students is provided, and comprises the following steps:

s1: placing the integral device on a flat ground, attaching the bottom end surfaces of the supporting legs to the ground, and seating a user on the side end surfaces of the supporting plates;

s2: the abdomen of a user is attached to the inner end of the inner concave edge groove, the inner concave edge groove is provided with the inner concave radian, the abdomen of the user can be completely sunken into the inner cavity of the inner concave edge groove, the arm of the user can be erected on the edge of the plate body, the comfort level of the user in a sitting posture state is improved, and the condition that the elbow of the user is tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided;

s3: when the table top is unfolded, an included angle exists between the assembling plate and the supporting plate, the included angle is changed through adjustment of the connecting mechanism, and the fixed sheet plate and the movable strip can be adjusted through the arrangement of the adjusting mechanism;

s4: through the setting of elasticity post, when fixed sheet board, activity strip and adjustment mechanism carry out relative angular adjustment, its rotation angle with the desktop is opposite, and the equipment board is folded through linking up the hinge strip this moment, and folding angle is opposite for the angular folding of desktop, and the user of service adjusts the angle of equipment board simultaneously at the angle that the accessible expanded the desktop.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. according to the multifunctional student desk with the lifting adjusting function, the integral device is placed on a flat ground, the bottom end face of the supporting leg is attached to the ground, a user sits on the side end face of the supporting plate, the abdomen of the user is attached to the inner end of the inner concave edge groove, the inner concave edge groove is provided with the inner concave radian, the abdomen of the user can be completely sunken into the inner cavity of the inner concave edge groove, the arm of the user can be erected on the edge of the plate body, the comfort level of the user in a sitting posture state is improved, and the problem that the arm of the user is tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided.

2. According to the multifunctional student desk with the lifting adjusting function, when the desk top is unfolded, an included angle exists between the assembling plate and the supporting plate, the included angle is changed through adjustment of the connecting mechanism, the adjusting mechanism is arranged, when the fixing sheet plate and the movable strip can be adjusted, the adjusting elasticity of the lifting device is adjusted, through arrangement of the elastic columns, when the fixing sheet plate, the movable strip and the adjusting mechanism are adjusted in relative angles, the rotating angles of the fixing sheet plate, the movable strip and the desktop are opposite, the assembling plate is folded through the connecting hinge strips, the folding angles of the assembling plate relative to the angle of the desktop are opposite, and a user can adjust the angle of the assembling plate through the angle of the unfolding desktop.

3. According to the multifunctional student desk with the lifting adjusting function, the privacy of a user can be increased due to the arrangement of the adjusting plate, the situation that spirits cannot be concentrated under the watching state of other people is avoided, and the practicability of the multifunctional student desk is improved.

Drawings

FIG. 1 is a schematic structural view of a multifunctional desk for students with lifting adjustment function according to the present invention;

FIG. 2 is a schematic view of a desktop structure of a multifunctional desk for students with lifting adjustment function according to the present invention;

FIG. 3 is a schematic structural view of an adjusting mechanism of a multifunctional desk for students with lifting adjustment function according to the present invention;

FIG. 4 is a schematic diagram of an opening position of an edge open cavity of a multifunctional desk for students with lifting adjustment function according to the present invention;

FIG. 5 is a schematic structural view of a multifunctional desk linking mechanism with lifting adjustment function for students according to the present invention;

fig. 6 is a schematic rotation diagram of a multifunctional desk linking mechanism for students with lifting adjustment function according to the present invention.

The reference numbers in the figures illustrate: 1. supporting legs; 2. a desktop; 21. a support plate; 211. a plate body; 212. a storage cavity; 213. an inner concave side groove; 214. opening a cavity at the edge; 22. a joining mechanism; 221. fixing the sheet plate; 222. mounting a buckle; 223. a splicing tape; 224. a movable bar; 225. an adjustment mechanism; 2251. mounting a sheet; 2252. an elastic column; 2253. a bearing block; 2254. a through hole; 23. an adjustment plate; 3. an adjustment mechanism; 31. assembling a plate; 32. connecting the hinged strips; 33. and supporting the soft strip.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

example 1

A multifunctional student desk with lifting adjusting function comprises supporting legs 1, a desktop 2 and an adjusting mechanism 3, wherein the upper end face of each supporting leg 1 is attached to the desktop 2, the inner cavity of the desktop 2 is provided with the adjusting mechanism 3, the desktop 2 comprises a supporting plate 21, a connecting mechanism 22 and an adjusting plate 23, the side end of the supporting plate 21 is movably connected with the adjusting plate 23 through the connecting mechanism 22, the supporting plate 21 comprises a plate body 211, a containing cavity 212 and an inner concave edge groove 213, the upper end face of the plate body 211 is provided with the containing cavity 212, the side end of the containing cavity 212 is provided with the inner concave edge groove 213, the supporting plate 21 further comprises an edge open cavity 214, the two sides of the side end faces of the supporting plate 21 and the adjusting plate 23 are provided with edge open cavities 214, the connecting mechanism 22 comprises a fixing plate 221, mounting buckles 222, connecting belts 223, movable strips 224 and adjusting mechanisms 225, the two ends of the fixing plate 221 are respectively provided with mounting buckles 222, the bottom end of one side of the fixing plate 221 is movably connected with one end of the movable strips 224 through the connecting belts 223, an adjusting mechanism 225 is arranged on the other side of the movable strip 224 in a penetrating mode, the adjusting mechanism 225 comprises a mounting piece 2251, an elastic column 2252, a bearing block 2253 and a through hole 2254, the mounting piece 2251 is attached to one side of the bottom end face of the movable strip 224, the elastic column 2252 is arranged in the middle of the mounting piece 2251, the top end of the elastic column 2252 is attached to the lower end face of the bearing block 2253, the through hole 2254 is transversely formed in the inner cavity of the bearing block 2253, an angle adjustment is performed between the fixed piece plate 221 and the adjusting plate 23 by using a connecting mechanism 22 as a fulcrum, the maximum angle difference between the fixed piece plate 221 and the adjusting plate 23 is 120 degrees, the assembling plates 31 are connected by using a connecting hinge strip 32, the angle adjustment can be performed between the assembling plates 31 by using the connecting strip 32, the maximum angle adjustment is positive and negative 120 degrees, the whole device is placed on a flat ground, the bottom end face of the supporting leg 1 is attached to the ground, a user sits on the side end face of the supporting plate 21, and the abdomen of the user is attached to the inner end of the concave edge groove 213, because of interior concave side groove 213 is provided with interior concave radian, user's belly can be totally sunken in with interior concave side groove 213's inner chamber, and user's arm can be put up in the edge of plate body 211, improves user's comfort level under the position of sitting state, avoids user's elbow to be in for a long time and does not have the condition that the support state leads to the arm fatigue to take place.

Example 2

The adjusting mechanism 3 comprises an assembly plate 31, a connecting hinge strip 32 and a supporting soft strip 33, the assembly plate 31 is connected with the connecting hinge strip 32 arranged in a row, the supporting soft strip 33 is arranged on both sides of the bottom end surface of the assembly plate 31, the other end of the supporting soft strip 33 is attached to the inner cavity walls of the supporting plate 21 and the adjusting plate 23, the supporting soft strip 33 is a member made of synthetic rubber, when the tabletop 2 is unfolded, an included angle exists between the assembly plate 31 and the supporting plate 21, the included angle is changed through adjustment of the connecting mechanism 22, through the arrangement of the adjusting mechanism 225, when the fixed sheet plate 221 and the movable strip 224 are adjusted, the adjusting elasticity of the lifting device is improved, through the arrangement of the elastic columns 2252, when the fixed sheet 221, the movable strip 224 and the adjusting mechanism 225 are adjusted in relative angles, the relative angles are opposite to the rotation angles of the tabletop 2, at this time, the assembly plate 31 is folded through the connecting hinge strip 32, and folding angle is opposite for the angle folding of desktop 2, and user of service adjusts the angle of assembling plate 31 simultaneously at the angle that the accessible expandes desktop 2, because of seting up of adjusting plate 23 can increase user's privacy, avoids can't concentrate on the practicality of hoisting device under the state of watching by other people.

In order to better show a using method of a multifunctional desk for students with a lifting adjusting function, the embodiment provides a using method of a multifunctional desk for students with a lifting adjusting function, which comprises the following steps:

s1: the integral device is placed on a flat ground, the bottom end surfaces of the supporting legs 1 are attached to the ground, and users sit on the side end surfaces of the supporting plates 21;

s2: the abdomen of the user is attached to the inner end of the inner concave groove 213, the abdomen of the user can be completely sunken into the inner cavity of the inner concave groove 213 due to the fact that the inner concave groove 213 is provided with the inner concave radian, the arm of the user can be erected on the edge of the plate body 211, the comfort level of the user in a sitting posture state is improved, and the situation that the arm of the user is tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided;

s3: when the desktop 2 is unfolded, an included angle exists between the assembling plate 31 and the supporting plate 21, the included angle is changed by adjusting the connecting mechanism 22, and the fixed sheet plate 221 and the movable strip 224 can be adjusted by setting the adjusting mechanism 225;

s4: through the arrangement of the elastic columns 2252, when the fixed sheet plate 221, the movable strip 224 and the adjusting mechanism 225 are relatively angularly adjusted, they are opposite to the rotation angle of the table top 2, at this time, the assembly plate 31 is folded through the connecting hinge strip 32, and the folding angle is opposite to the angular folding of the table top 2, so that the user can adjust the angle of the assembly plate 31 while unfolding the table top 2.

Besides, the integral device is placed on a flat ground, the bottom end face of the supporting leg 1 is attached to the ground, a user sits on the side end face of the supporting plate 21, the abdomen of the user is attached to the inner end of the inner concave groove 213, the abdomen of the user can be completely sunken into the inner cavity of the inner concave groove 213 due to the fact that the inner concave groove 213 is provided with an inner concave radian, the arm of the user can be erected on the edge of the plate body 211, the comfort level of the user in a sitting posture state is improved, the situation that the user feels tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided, when the desktop 2 is unfolded, an included angle exists between the assembling plate 31 and the supporting plate 21, the included angle is changed through adjustment of the connecting mechanism 22, through setting of the adjusting mechanism 225, when the fixing sheet plate 221 and the movable strip 224 can be adjusted, the adjustment elasticity of the lifting device is improved, through setting of the elastic columns 2252, when fixed plate 221, activity strip 224 and adjustment mechanism 225 carry out relative angular adjustment, it is opposite with the rotation angle of desktop 2, assembling plate 31 is folded through linking up hinge strip 32 this moment, and folding angle is opposite for the angular folding of desktop 2, and the user of service deploys the angle of desktop 2 at the accessible, adjusts the angle of assembling plate 31 simultaneously, can increase user's privacy because of seting up of adjusting plate 23, avoid can't concentrate on the spirit under the state of watching by others, hoisting device's practicality.

The working principle is as follows: the integral device is placed on a flat ground, the bottom end face of the supporting leg 1 is attached to the ground, a user sits on the side end face of the supporting plate 21, the abdomen of the user is attached to the inner end of the inner concave groove 213, the abdomen of the user can be completely sunken into the inner cavity of the inner concave groove 213 due to the fact that the inner concave groove 213 is provided with an inner concave radian, the arm of the user can be erected on the edge of the plate body 211, the comfort level of the user in a sitting posture state is improved, the situation that the user is tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided, when the desktop 2 is unfolded, an included angle exists between the assembling plate 31 and the supporting plate 21, the included angle is changed through adjustment of the linking mechanism 22, through setting of the adjusting mechanism 225, when the fixing sheet plate 221 and the movable strip 224 can be adjusted, the adjustment elasticity of the lifting device is improved, through setting of the elastic columns 2252, when the fixed sheet plate 221, the movable strip 224 and the adjusting mechanism 225 are adjusted in relative angle, the relative angle is opposite to the rotation angle of the desktop 2, the assembling plate 31 is folded through the connecting hinge strip 32, the folding angle is opposite to the angle folding of the desktop 2, a user can unfold the desktop 2 through the angle, and the angle of the assembling plate 31 is adjusted at the same time, so that the privacy of the user can be increased due to the arrangement of the adjusting plate 23, and the situation that the spirit cannot be concentrated under the watching state of other people is avoided.

In summary, the following steps: a multifunctional desk with lifting adjustment function for students comprises a supporting leg 1, a desktop 2 and an adjusting mechanism 3, wherein the upper end surface of the supporting leg 1 is attached to the desktop 2, the inner cavity of the desktop 2 is provided with the adjusting mechanism 3, the desktop 2 comprises a supporting plate 21, a connecting mechanism 22 and an adjusting plate 23, the side end of the supporting plate 21 is movably connected with the adjusting plate 23 through the connecting mechanism 22, the whole device is placed on a flat ground, the bottom end surface of the supporting leg 1 is attached to the ground, a user sits on the side end surface of the supporting plate 21, the abdomen of the user is attached to the inner end of an inner concave edge groove 213, the abdomen of the user can be completely sunken into the inner cavity of the inner concave edge groove 213 due to the fact that the inner concave arc is arranged in the inner concave edge 213, the arm of the user can be erected on the edge of a plate body 211, the comfort level of the user in a sitting posture state is improved, and the situation that the arm of the user is tired due to the fact that the elbow is in an unsupported state for a long time is avoided, when unfolding desktop 2, there is the contained angle between assembly panel 31 and the backup pad 21, the contained angle changes through linking mechanism 22's adjustment, setting through adjustment mechanism 225, when can making fixed plate 221 and activity strip 224 adjust, hoisting device's adjustment elasticity, setting through elasticity post 2252, when fixed plate 221, activity strip 224 carries out relative angular adjustment with adjustment mechanism 225, it is opposite with desktop 2's rotation angle, assembly panel 31 folds through linking hinge strip 32 this moment, and folding angle is opposite for desktop 2's angular folding, the user is at the angle that the accessible unfolded desktop 2, the angle of assembly panel 31 is adjusted simultaneously, can increase user's privacy because of seting up of adjusting plate 23, avoid can't concentrating in the spirit under other people's gaze state, hoisting device's practicality.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a student uses multi-functional desk with adjust raising and lowering functions which characterized in that: including supporting leg (1), desktop (2) and adjustment mechanism (3), the up end and the desktop (2) laminating of supporting leg (1), the inner chamber of desktop (2) sets up adjustment mechanism (3), desktop (2) are including backup pad (21), linking mechanism (22) and adjusting plate (23), the side of backup pad (21) is through linking mechanism (22) and adjusting plate (23) swing joint.

2. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the supporting plate (21) comprises a plate body (211), a containing cavity (212) and an inner concave edge groove (213), the containing cavity (212) is formed in the upper end face of the plate body (211), and the inner concave edge groove (213) is formed in the side end of the containing cavity (212).

3. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the supporting plate (21) further comprises an edge open cavity (214), and the edge open cavity (214) is formed in the two sides of the side end face of the supporting plate (21) and the two sides of the side end face of the adjusting plate (23).

4. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the connecting mechanism (22) comprises a fixed sheet plate (221), mounting buckles (222), a connecting belt (223), a movable strip (224) and an adjusting mechanism (225), the mounting buckles (222) are arranged at the two ends of the fixed sheet plate (221), the bottom end of one side of the fixed sheet plate (221) is movably connected with one end of the movable strip (224) through the connecting belt (223), and the adjusting mechanism (225) is arranged on the other side of the movable strip (224) in a penetrating mode.

5. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: adjustment mechanism (225) include installation piece (2251), elastic column (2252), accept piece (2253) and through-hole (2254), installation piece (2251) is laminated in the bottom face one side of activity strip (224), elastic column (2252) is run through in the centre of installation piece (2251), the top of elastic column (2252) and the lower terminal surface laminating of accepting piece (2253), through-hole (2254) is transversely seted up to the inner chamber of accepting piece (2253).

6. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the adjusting mechanism (3) comprises assembling plates (31), connecting hinge strips (32) and supporting soft strips (33), the assembling plates (31) are connected through the connecting hinge strips (32) arranged, and the supporting soft strips (33) are arranged on two sides of the bottom end face of each assembling plate (31).

7. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the other end of the supporting soft strip (33) is attached to the inner cavity wall of the supporting plate (21) and the inner cavity wall of the adjusting plate (23), and the supporting soft strip (33) is a component made of synthetic rubber.

8. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the angle between the fixing sheet plate (221) and the adjusting plate (23) is adjusted by taking the connecting mechanism (22) as a fulcrum, and the maximum angle difference between the fixing sheet plate (221) and the adjusting plate (23) is 120 degrees.

9. The multifunctional desk for students with adjustable lifting function of claim 1, wherein: the assembling plates (31) are connected through a connecting hinge strip (32), the angle of the assembling plates (31) can be adjusted through the connecting hinge strip (32), and the maximum angle is adjusted to be plus or minus 120 degrees.

10. A method for using a multifunctional desk for students with lifting adjusting function as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:

s1: the integral device is placed on a flat ground, the bottom end surface of the supporting leg (1) is attached to the ground, and a user sits on the side end surface of the supporting plate (21);

s2: the abdomen of a user is attached to the inner end of the inner concave edge groove (213), the abdomen of the user can be completely sunken into the inner cavity of the inner concave edge groove (213) due to the fact that the inner concave edge groove (213) is provided with the inner concave radian, the arm of the user can be erected on the edge of the plate body (211), the comfort level of the user in a sitting posture state is improved, and the situation that the arm is tired due to the fact that the elbow of the user is in an unsupported state for a long time is avoided;

s3: when the desktop (2) is unfolded, an included angle exists between the assembling plate (31) and the supporting plate (21), the included angle is changed through adjustment of the connecting mechanism (22), and the fixed sheet plate (221) and the movable strip (224) can be adjusted through arrangement of the adjusting mechanism (225);

s4: through the setting of elastic column (2252), when fixed sheet board (221), activity strip (224) and adjustment mechanism (225) carry out relative angular adjustment, it is opposite with the rotation angle of desktop (2), and equipment board (31) are folded through linking hinge strip (32) this moment, and the angle folding of folding angle for desktop (2) is opposite, and the user is at the angle of the accessible expansion desktop (2), adjusts the angle of equipment board (31) simultaneously.