Portable laptop desk mounted on chair armrests

Abstract

Disclosed is a portable laptop desk mounted on chair armrests, comprising a board body, board sliding mechanisms, armrest sleeves and adjusting knobs. In use, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knob. In actual production, the large-sized armrest sleeves are arranged to ensure that the armrest the size of the armrest sleeves is set to be large to ensure that the armrest sleeves can be disposed around armrests of any sizes, thus greatly improving practicability and adaptability; and the board body is provided with the first board and the second board which are connected together and allowed to be flipped, such that the size of the board body is reduced, the express transportation cost of the portable laptop desk is reduced, and the portable laptop desk can be easily stored by users.

Description

BACKGROUND OF THE INVENTION1. Technical Field

[0001] The invention relates to the technical field of desks, in particular to a portable laptop desk mounted on chair armrests.2. Description of Related Art

[0002] With the acceleration of the pace of life, everyone is busy at work and often some even have to work at home. For many people, when working at home or outside, they have to directly place the laptop on their thighs or other support objects because there may be no space for placing the laptop on the desk full of too many articles, leading to much inconvenience. In view of this, many chairs are correspondingly provided with a board capable of functioning as a temporary desk.

[0003] In the prior art, two sleeves to be disposed around chair armrests are generally arranged at the bottom of a board, and by disposing the sleeves around the chair armrests, the board is fixed to be used as a temporary desk, brining convenience to users. However, the sleeves of many boards actually only fit the armrest of one type of chairs. In a case where the size of the chair armrests cannot perfectly fit the size of the sleeves of the board in the prior art, the armrests may be too large to be sleeved with the sleeves, or the armrests may be too small and lead to shaking of the board due to unstable installation of the board. So, existing boards are poor in practicability and have too many limitations. Therefore, a laptop desk with a more reasonable structure is needed to solve these technical problems.BRIEF SUMMARY OF THE INVENTION

[0004] In view of the defects that the sleeves of boards in the prior art cannot be installed on different types of chair armrests, the invention provides a portable laptop desk mounted on chair armrests.

[0005] To fulfill the above purpose, the invention provides a portable laptop desk mounted on chair armrests, comprising a board body, wherein the board body comprises a working surface and a mounting surface, at least two board sliding mechanisms and at least two armrest sleeves are arranged on the mounting surface, each board sliding mechanism is correspondingly and fixedly connected to one armrest sleeve, threaded holes are formed in sides, away from the board sliding mechanisms, of the armrest sleeves, and adjusting knobs are connected into the threaded holes; and when the portable laptop desk is used, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knobs, and the board sliding mechanisms slide forward or backward linearly with respect to the armrest sleeves to drive the board body to move.

[0006] As an improvement of the invention, a first recess is formed in the working surface of the board body, a support frame and a support plate are arranged in the first recess, one end of the support frame is arranged on the support plate and is allowed to be flipped, multiple adjusting grooves are formed in a bottom surface of the first recess, and the other end of the support frame is matched with the adjusting grooves; and rotating pillars are arranged on two sides of the support plate, and holes matched with the rotating pillars are formed in wall surfaces of the first recess.

[0007] As an improvement of the invention, a cup holder is arranged on the mounting surface, and the cup holder is rotatably connected to the board body.

[0008] As an improvement of the invention, the board body comprises a first board and a second board, and the first board and the second board are connected by means of hinged and are allowed to be flipped.

[0009] As an improvement of the invention, a second recess is arranged on a side, away from the first recess, of the support plate, a support bar for abutting against a laptop is arranged in the second recess, and the support bar is connected to the support plate and is allowed to be flipped.

[0010] As an improvement of the invention, each board sliding mechanism comprises a connector and a slider, the slider is fixedly arranged on the mounting surface, and the connector is arranged between the board body and the slider; and a strip-shaped hole is formed in the slider, and a connecting pillar inlaid in the strip-shaped hole arranged on a side, close to the board body, of the corresponding armrest sleeve, a mounting hole is formed in an end surface of the connecting pillar, a connecting groove is formed in the connector, a connecting hole is formed in a bottom of the connecting groove, and the connecting pillar is inlaid in the connecting groove by means of the strip-shaped hole.

[0011] As an improvement of the invention, sawtooth protrusions are arranged on inner walls of two opposite ends of the slider, and slots matched with the protrusions are formed in two sides of the connector.

[0012] As an improvement of the invention, flip portions are arranged on edges, away from hinged ends, of the support plate and the support bar.

[0013] As an improvement of the invention, an arc-shaped receding portion is formed on an edge of the board body.

[0014] As an improvement of the invention, a third recess is formed in the board body, and a mouse mat is arranged in the third recess.

[0015] The invention has the following beneficial effects: compared with the prior art, the portable laptop desk mounted on chair armrests provided by the invention comprises a board body, wherein the board body comprises a working surface and a mounting surface, at least two board sliding mechanisms and at least two armrest sleeves are arranged on the mounting surface, each board sliding mechanism is correspondingly and fixedly connected to one armrest sleeve, threaded holes are formed in sides, away from the board sliding mechanisms, of the armrest sleeves, and adjusting knobs are connected into the threaded holes; when the portable laptop desk is used, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knobs; in actual production, the size of the armrest sleeves is set to be large to prevent the situation where the armrest sleeves fail to be disposed around large armrest, and the armrest sleeves can be mounted on armrests of any sizes by means of the adjusting knobs, thus greatly improving practicability and adaptability; and the board body is provided with the first board and the second board which are hinged to each other, and the foldable design reduces the size of the board body, such that the express transportation cost of the portable laptop desk is reduced, and the portable laptop desk can be easily stored by users.BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0016] FIG. 1 is a perspective view of the invention;

[0017] FIG. 2 is a top view of the invention;

[0018] FIG. 3 is a front view of the invention;

[0019] FIG. 4 is a bottom view of the invention;

[0020] FIG. 5 is an assembled view of a board sliding mechanism according to the invention;

[0021] FIG. 6 is an exploded view of the board sliding mechanism according to the invention;

[0022] FIG. 7 is a schematic diagram of a connector according to the invention;

[0023] FIG. 8 is a schematic diagram of a cup holder according to the invention;

[0024] FIG. 9 is a schematic diagram of a support plate according to the invention.

[0025] Reference signs of main elements:

[0026] 1, board body; 101, first board; 102, second board; 2, board sliding mechanism; 21, slider; 211, strip-shaped hole; 212, protrusion; 22, connector; 221, connecting groove; 222, slot; 223, connecting hole; 3, armrest sleeve; 31, connecting pillar; 311, mounting hole; 4, adjusting knob; 5, first recess; 51, support frame; 52, support plate; 53, adjusting groove; 521, rotating pillar; 522, second recess; 6, cup holder; 61, first rotating member; 62, second rotating member; 7, support bar; 8, cooling hole; 9, third recess; 10, mouse mat; 11, hinge; 12, flip portion; 13, receding portion.DETAILED DESCRIPTION OF THE INVENTION

[0027] To more clearly explain the invention, the invention is further described below in conjunction with accompanying drawings.

[0028] In the following description, details of some embodiments are given below to provide a deeper understanding of the invention. Obviously, the embodiments in the following description are merely illustrative ones, and are not all possible ones of the invention. It should be understood that the following specific embodiments are merely used for explaining the invention and are not intended to limit the invention.

[0029] It should be understood that terms “include” and / or “comprise” used in the specification are intended to indicate the presence of features, entireties, steps, operations, elements or modules referred to, and do not exclude the presence or addition of one or more other features, entireties, steps, operations, elements, modules or combinations thereof.

[0030] Referring to FIGS. 1-9, the invention provides a portable laptop desk mounted on chair armrests, comprising a board body 1, wherein the board body 1 comprises a working surface and a mounting surface, and at least two board sliding mechanisms 2 and at least two armrest sleeves 3 are arranged on the mounting surface, each board sliding mechanism 2 is correspondingly and fixedly connected to one armrest sleeve 3, threaded holes are formed in sides, away from the board sliding mechanisms 2, of the armrest sleeves 3, and adjusting knobs 4 are connected into the threaded holes; and when the portable laptop desk is used, the armrest sleeves 3 are disposed around chair armrests, and then the adjusting knobs 4 are tightened to fix the armrest sleeves 4 to the chair armrests. The armrest sleeves 3 of the portable laptop desk can be mounted on most chair armrests by means of the adjusting knobs 4, and the position of the board body 1 can be flexibly adjusted forward and backward by means of the board sliding mechanisms 2 to satisfy different space requirements of users, thus improving the practicability of the portable laptop desk. A third recess 9 is formed in the board body 1, and a mouse mat 10 is arranged in the third recess 9, such that when the portable laptop desk is used by users, the users do not need to carry a mouse mat 10 and can directly use the mouse mat 10 on the board body, thus improving the using convenience of the portable laptop desk.

[0031] The portable laptop desk is used as follows:

[0032] When the portable laptop desk is used, the armrest sleeves 3 are disposed around chair armrests, and then the adjusting knobs 4 are tightened to fix the armrest sleeves 3 to the chair armrests; then, the board body 1 can be controlled to slide forward or backward with respect to the armrest sleeves 3 by means of connectors 22 to adjust the distance between the board body and users; next, the entire board body 1 is cooperatively mounted on the chair armrests, and an arc-shaped receding portion is formed on an edge of an end, close to users, of the board body 1, such that a larger space is provided for users to stretch in use; then, a support plate 52 on the board body 1 is unfolded, a support frame 51 in a first recess 5 abuts against an adjusting groove 53 in the support plate 52 to fix the angle of the support plate 52, at this moment, a support bar 7 on the support plate 52 is unfolded, then a laptop is placed on the support plate 52, and the support bar 7 abuts against the laptop to prevent the laptop from sliding down from the support plate 52; a cup holder 6 is arranged on the mounting surface of the board body 1, the cup holder 6 is rotatably connected to the board body 1 and can be directly rotated out when used, and the cup holder 6 is solid or hollow; wherein, a first rotating member 61 and a second rotating member 62 are arranged on the mounting surface, the first rotating member 61 is rotatably connected to the board body 1, the second rotating member 62 is rotatably connected to the second rotating member 61, the cup holder 6 is fixedly connected to the second rotating member 62, and the cup holder 6 is stored or used by means of the first rotating member 61; when stored, the cup holder 6 is located on the board body 1; and when used, the cup holder 6 is rotated out by means of the first rotating member 61, and the angle of the cup holder 6 can be adjusted by means of the second rotating member 62 to ensure that the cup holder 6 is located in the same horizontal plane as the board body 1.

[0033] In this embodiment, referring to FIGS. 3-7, each board sliding mechanism 2 comprises a slider 21 and a connector 22, wherein the slider 21 is fixedly arranged on the mounting surface, and the connector 22 is arranged between the board body 1 and the slider 21; a strip-shaped hole 211 is formed in the slider 21, a connecting pillar 31 inlaid in the strip-shaped hole 211 is arranged on a side, close to the board body 1, of the corresponding armrest sleeve 3, mounting holes 311 are formed in an end surface of the connecting pillar 31, and a connecting groove 221 is formed in the connector 22, and connecting holes 223 are formed in a bottom surface of the connecting groove 221; and the connecting pillar 31 is inlaid in the connecting groove 221 by means of the strip-shaped hole 211, and external screws are sequentially connected into the connecting holes 223 and the mounting holes 311 to fixedly connect the corresponding armrest sleeve 3 and the connector 22. Because the armrest sleeves 3 and the connectors 22 are fixedly connected, the sliders 21 can slide with respect to the armrest sleeves 3 to drive the board body 1 to move forward or backward to flexibly adjust the space and distance between users and the board body, thus improving the practicability of the portable laptop desk. Further, sawtooth protrusions 212 are arranged on the slider 21, slots 222 matched with the protrusions 212 are formed in two sides of the connector 22. In this way, when the slider 21 slides, the corresponding protrusions 212 will be clamped in the slots 222 to fix the board body 1 at a certain position.

[0034] Referring to FIGS. 1, 2 and 9, a first recess 5 is formed in the working surface of the board body 1, a support frame 51 and a support plate 52 are arranged in the first recess 5, and one end of the support frame 51 is arranged on a bottom surface of the first recess 5 and is allowed to be flipped; two sides of the support plate 52 are hinged to walls of the first recess 5; multiple adjusting grooves 53 are formed in a side, close to the first recess 5, of the support plate 52, and the other end of the support frame 51 is matched with the adjusting grooves 53; rotating pillars 521 are arranged on two sides of the support plate 52, and holes matched with the rotating pillars 53 are formed in wall surfaces of the first recess 5; the first recess 5 is mainly used for receiving the support frame 51 and the support plate 52, and in use, the support plate 52 and the support frame 51 are correspondingly unfolded, one end of the support frame 51 abuts against the corresponding adjusting groove 53, the support plate 52 is maintained at a certain angle, and then a laptop can be placed on the support plate 52; a second recess 522 is formed in a side, away from the first recess 5, of the support plate 52, a support bar 7 for abutting against the laptop is arranged in the second recess 522, and the support bar 7 is rotatably connected to the support plate 52 and is allowed to be flipped; and after being unfolded, the support bar 7 can prevent the laptop from sliding down from the support plate 62. Further, multiple cooling holes 8 are formed in a surface of the support plate 52 and used for cooling the laptop, and arc-shaped flip portions 12 are arranged on the support plate 52 and the support bar 7, and users can grip the flip portions 12 with their fingers to flip the support plate 52 and the support bar 7.

[0035] Referring to FIG. 4, in this embodiment, the board body 1 comprises a first board 101 and a second board 102, the first board 101 and the second board 102 are connected by means of hinges 11 and are allowed to be flipped. Considering that the express transportation cost will be increased by the large size of the board body 1 when the portable laptop desk is delivered and express transported by the manufacturer, the board body 1 is designed to be formed by the first board 101 and the second board 102 which can be folded and flipped to be stored by means of the hinges to reduce the size of the board body so as to reduce the cost for the manufacturer, and for users, the foldable board body will occupy less space.

[0036] The invention has the following advantages:

[0037] (1) The armrest sleeves of the portable laptop desk can be mounted and fixed to chair armrests of any sizes, thus greatly improving practicality and adaptability.

[0038] (2) The board body is provided with the first board and the second board which are hinged to each other, and the foldable design reduces the size of the board body, such that the express transportation cost of the portable laptop desk is reduced, and the portable laptop desk can be easily stored by users.

[0039] (3) The cup holder can adapt to the angle to board body to be kept in the same horizontal plane as the board body.

[0040] The embodiments disclosed above are merely several specific ones of the invention, and the invention is not limited to the above embodiments. Any variations that can be obtained by those skilled in the art should fall within the protection scope of the invention.

Examples

Embodiment Construction

[0027]To more clearly explain the invention, the invention is further described below in conjunction with accompanying drawings.

[0028]In the following description, details of some embodiments are given below to provide a deeper understanding of the invention. Obviously, the embodiments in the following description are merely illustrative ones, and are not all possible ones of the invention. It should be understood that the following specific embodiments are merely used for explaining the invention and are not intended to limit the invention.

[0029]It should be understood that terms “include” and / or “comprise” used in the specification are intended to indicate the presence of features, entireties, steps, operations, elements or modules referred to, and do not exclude the presence or addition of one or more other features, entireties, steps, operations, elements, modules or combinations thereof.

[0030]Referring to FIGS. 1-9, the invention provides a portable laptop desk mounted on chair...

BACKGROUND OF THE INVENTION1. Technical Field

[0001] The invention relates to the technical field of desks, in particular to a portable laptop desk mounted on chair armrests.2. Description of Related Art

[0002] With the acceleration of the pace of life, everyone is busy at work and often some even have to work at home. For many people, when working at home or outside, they have to directly place the laptop on their thighs or other support objects because there may be no space for placing the laptop on the desk full of too many articles, leading to much inconvenience. In view of this, many chairs are correspondingly provided with a board capable of functioning as a temporary desk.

[0003] In the prior art, two sleeves to be disposed around chair armrests are generally arranged at the bottom of a board, and by disposing the sleeves around the chair armrests, the board is fixed to be used as a temporary desk, brining convenience to users. However, the sleeves of many boards actually only fit the armrest of one type of chairs. In a case where the size of the chair armrests cannot perfectly fit the size of the sleeves of the board in the prior art, the armrests may be too large to be sleeved with the sleeves, or the armrests may be too small and lead to shaking of the board due to unstable installation of the board. So, existing boards are poor in practicability and have too many limitations. Therefore, a laptop desk with a more reasonable structure is needed to solve these technical problems.BRIEF SUMMARY OF THE INVENTION

[0004] In view of the defects that the sleeves of boards in the prior art cannot be installed on different types of chair armrests, the invention provides a portable laptop desk mounted on chair armrests.

[0005] To fulfill the above purpose, the invention provides a portable laptop desk mounted on chair armrests, comprising a board body, wherein the board body comprises a working surface and a mounting surface, at least two board sliding mechanisms and at least two armrest sleeves are arranged on the mounting surface, each board sliding mechanism is correspondingly and fixedly connected to one armrest sleeve, threaded holes are formed in sides, away from the board sliding mechanisms, of the armrest sleeves, and adjusting knobs are connected into the threaded holes; and when the portable laptop desk is used, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knobs, and the board sliding mechanisms slide forward or backward linearly with respect to the armrest sleeves to drive the board body to move.

[0006] As an improvement of the invention, a first recess is formed in the working surface of the board body, a support frame and a support plate are arranged in the first recess, one end of the support frame is arranged on the support plate and is allowed to be flipped, multiple adjusting grooves are formed in a bottom surface of the first recess, and the other end of the support frame is matched with the adjusting grooves; and rotating pillars are arranged on two sides of the support plate, and holes matched with the rotating pillars are formed in wall surfaces of the first recess.

[0007] As an improvement of the invention, a cup holder is arranged on the mounting surface, and the cup holder is rotatably connected to the board body.

[0008] As an improvement of the invention, the board body comprises a first board and a second board, and the first board and the second board are connected by means of hinged and are allowed to be flipped.

[0009] As an improvement of the invention, a second recess is arranged on a side, away from the first recess, of the support plate, a support bar for abutting against a laptop is arranged in the second recess, and the support bar is connected to the support plate and is allowed to be flipped.

[0010] As an improvement of the invention, each board sliding mechanism comprises a connector and a slider, the slider is fixedly arranged on the mounting surface, and the connector is arranged between the board body and the slider; and a strip-shaped hole is formed in the slider, and a connecting pillar inlaid in the strip-shaped hole arranged on a side, close to the board body, of the corresponding armrest sleeve, a mounting hole is formed in an end surface of the connecting pillar, a connecting groove is formed in the connector, a connecting hole is formed in a bottom of the connecting groove, and the connecting pillar is inlaid in the connecting groove by means of the strip-shaped hole.

[0011] As an improvement of the invention, sawtooth protrusions are arranged on inner walls of two opposite ends of the slider, and slots matched with the protrusions are formed in two sides of the connector.

[0012] As an improvement of the invention, flip portions are arranged on edges, away from hinged ends, of the support plate and the support bar.

[0013] As an improvement of the invention, an arc-shaped receding portion is formed on an edge of the board body.

[0014] As an improvement of the invention, a third recess is formed in the board body, and a mouse mat is arranged in the third recess.

[0015] The invention has the following beneficial effects: compared with the prior art, the portable laptop desk mounted on chair armrests provided by the invention comprises a board body, wherein the board body comprises a working surface and a mounting surface, at least two board sliding mechanisms and at least two armrest sleeves are arranged on the mounting surface, each board sliding mechanism is correspondingly and fixedly connected to one armrest sleeve, threaded holes are formed in sides, away from the board sliding mechanisms, of the armrest sleeves, and adjusting knobs are connected into the threaded holes; when the portable laptop desk is used, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knobs; in actual production, the size of the armrest sleeves is set to be large to prevent the situation where the armrest sleeves fail to be disposed around large armrest, and the armrest sleeves can be mounted on armrests of any sizes by means of the adjusting knobs, thus greatly improving practicability and adaptability; and the board body is provided with the first board and the second board which are hinged to each other, and the foldable design reduces the size of the board body, such that the express transportation cost of the portable laptop desk is reduced, and the portable laptop desk can be easily stored by users.BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0016] FIG. 1 is a perspective view of the invention;

[0017] FIG. 2 is a top view of the invention;

[0018] FIG. 3 is a front view of the invention;

[0019] FIG. 4 is a bottom view of the invention;

[0020] FIG. 5 is an assembled view of a board sliding mechanism according to the invention;

[0021] FIG. 6 is an exploded view of the board sliding mechanism according to the invention;

[0022] FIG. 7 is a schematic diagram of a connector according to the invention;

[0023] FIG. 8 is a schematic diagram of a cup holder according to the invention;

[0024] FIG. 9 is a schematic diagram of a support plate according to the invention.

[0025] Reference signs of main elements:

[0026] 1, board body; 101, first board; 102, second board; 2, board sliding mechanism; 21, slider; 211, strip-shaped hole; 212, protrusion; 22, connector; 221, connecting groove; 222, slot; 223, connecting hole; 3, armrest sleeve; 31, connecting pillar; 311, mounting hole; 4, adjusting knob; 5, first recess; 51, support frame; 52, support plate; 53, adjusting groove; 521, rotating pillar; 522, second recess; 6, cup holder; 61, first rotating member; 62, second rotating member; 7, support bar; 8, cooling hole; 9, third recess; 10, mouse mat; 11, hinge; 12, flip portion; 13, receding portion.DETAILED DESCRIPTION OF THE INVENTION

[0027] To more clearly explain the invention, the invention is further described below in conjunction with accompanying drawings.

[0028] In the following description, details of some embodiments are given below to provide a deeper understanding of the invention. Obviously, the embodiments in the following description are merely illustrative ones, and are not all possible ones of the invention. It should be understood that the following specific embodiments are merely used for explaining the invention and are not intended to limit the invention.

[0029] It should be understood that terms “include” and / or “comprise” used in the specification are intended to indicate the presence of features, entireties, steps, operations, elements or modules referred to, and do not exclude the presence or addition of one or more other features, entireties, steps, operations, elements, modules or combinations thereof.

[0030] Referring to FIGS. 1-9, the invention provides a portable laptop desk mounted on chair armrests, comprising a board body 1, wherein the board body 1 comprises a working surface and a mounting surface, and at least two board sliding mechanisms 2 and at least two armrest sleeves 3 are arranged on the mounting surface, each board sliding mechanism 2 is correspondingly and fixedly connected to one armrest sleeve 3, threaded holes are formed in sides, away from the board sliding mechanisms 2, of the armrest sleeves 3, and adjusting knobs 4 are connected into the threaded holes; and when the portable laptop desk is used, the armrest sleeves 3 are disposed around chair armrests, and then the adjusting knobs 4 are tightened to fix the armrest sleeves 4 to the chair armrests. The armrest sleeves 3 of the portable laptop desk can be mounted on most chair armrests by means of the adjusting knobs 4, and the position of the board body 1 can be flexibly adjusted forward and backward by means of the board sliding mechanisms 2 to satisfy different space requirements of users, thus improving the practicability of the portable laptop desk. A third recess 9 is formed in the board body 1, and a mouse mat 10 is arranged in the third recess 9, such that when the portable laptop desk is used by users, the users do not need to carry a mouse mat 10 and can directly use the mouse mat 10 on the board body, thus improving the using convenience of the portable laptop desk.

[0031] The portable laptop desk is used as follows:

[0032] When the portable laptop desk is used, the armrest sleeves 3 are disposed around chair armrests, and then the adjusting knobs 4 are tightened to fix the armrest sleeves 3 to the chair armrests; then, the board body 1 can be controlled to slide forward or backward with respect to the armrest sleeves 3 by means of connectors 22 to adjust the distance between the board body and users; next, the entire board body 1 is cooperatively mounted on the chair armrests, and an arc-shaped receding portion is formed on an edge of an end, close to users, of the board body 1, such that a larger space is provided for users to stretch in use; then, a support plate 52 on the board body 1 is unfolded, a support frame 51 in a first recess 5 abuts against an adjusting groove 53 in the support plate 52 to fix the angle of the support plate 52, at this moment, a support bar 7 on the support plate 52 is unfolded, then a laptop is placed on the support plate 52, and the support bar 7 abuts against the laptop to prevent the laptop from sliding down from the support plate 52; a cup holder 6 is arranged on the mounting surface of the board body 1, the cup holder 6 is rotatably connected to the board body 1 and can be directly rotated out when used, and the cup holder 6 is solid or hollow; wherein, a first rotating member 61 and a second rotating member 62 are arranged on the mounting surface, the first rotating member 61 is rotatably connected to the board body 1, the second rotating member 62 is rotatably connected to the second rotating member 61, the cup holder 6 is fixedly connected to the second rotating member 62, and the cup holder 6 is stored or used by means of the first rotating member 61; when stored, the cup holder 6 is located on the board body 1; and when used, the cup holder 6 is rotated out by means of the first rotating member 61, and the angle of the cup holder 6 can be adjusted by means of the second rotating member 62 to ensure that the cup holder 6 is located in the same horizontal plane as the board body 1.

[0033] In this embodiment, referring to FIGS. 3-7, each board sliding mechanism 2 comprises a slider 21 and a connector 22, wherein the slider 21 is fixedly arranged on the mounting surface, and the connector 22 is arranged between the board body 1 and the slider 21; a strip-shaped hole 211 is formed in the slider 21, a connecting pillar 31 inlaid in the strip-shaped hole 211 is arranged on a side, close to the board body 1, of the corresponding armrest sleeve 3, mounting holes 311 are formed in an end surface of the connecting pillar 31, and a connecting groove 221 is formed in the connector 22, and connecting holes 223 are formed in a bottom surface of the connecting groove 221; and the connecting pillar 31 is inlaid in the connecting groove 221 by means of the strip-shaped hole 211, and external screws are sequentially connected into the connecting holes 223 and the mounting holes 311 to fixedly connect the corresponding armrest sleeve 3 and the connector 22. Because the armrest sleeves 3 and the connectors 22 are fixedly connected, the sliders 21 can slide with respect to the armrest sleeves 3 to drive the board body 1 to move forward or backward to flexibly adjust the space and distance between users and the board body, thus improving the practicability of the portable laptop desk. Further, sawtooth protrusions 212 are arranged on the slider 21, slots 222 matched with the protrusions 212 are formed in two sides of the connector 22. In this way, when the slider 21 slides, the corresponding protrusions 212 will be clamped in the slots 222 to fix the board body 1 at a certain position.

[0034] Referring to FIGS. 1, 2 and 9, a first recess 5 is formed in the working surface of the board body 1, a support frame 51 and a support plate 52 are arranged in the first recess 5, and one end of the support frame 51 is arranged on a bottom surface of the first recess 5 and is allowed to be flipped; two sides of the support plate 52 are hinged to walls of the first recess 5; multiple adjusting grooves 53 are formed in a side, close to the first recess 5, of the support plate 52, and the other end of the support frame 51 is matched with the adjusting grooves 53; rotating pillars 521 are arranged on two sides of the support plate 52, and holes matched with the rotating pillars 53 are formed in wall surfaces of the first recess 5; the first recess 5 is mainly used for receiving the support frame 51 and the support plate 52, and in use, the support plate 52 and the support frame 51 are correspondingly unfolded, one end of the support frame 51 abuts against the corresponding adjusting groove 53, the support plate 52 is maintained at a certain angle, and then a laptop can be placed on the support plate 52; a second recess 522 is formed in a side, away from the first recess 5, of the support plate 52, a support bar 7 for abutting against the laptop is arranged in the second recess 522, and the support bar 7 is rotatably connected to the support plate 52 and is allowed to be flipped; and after being unfolded, the support bar 7 can prevent the laptop from sliding down from the support plate 62. Further, multiple cooling holes 8 are formed in a surface of the support plate 52 and used for cooling the laptop, and arc-shaped flip portions 12 are arranged on the support plate 52 and the support bar 7, and users can grip the flip portions 12 with their fingers to flip the support plate 52 and the support bar 7.

[0035] Referring to FIG. 4, in this embodiment, the board body 1 comprises a first board 101 and a second board 102, the first board 101 and the second board 102 are connected by means of hinges 11 and are allowed to be flipped. Considering that the express transportation cost will be increased by the large size of the board body 1 when the portable laptop desk is delivered and express transported by the manufacturer, the board body 1 is designed to be formed by the first board 101 and the second board 102 which can be folded and flipped to be stored by means of the hinges to reduce the size of the board body so as to reduce the cost for the manufacturer, and for users, the foldable board body will occupy less space.

[0036] The invention has the following advantages:

[0037] (1) The armrest sleeves of the portable laptop desk can be mounted and fixed to chair armrests of any sizes, thus greatly improving practicality and adaptability.

[0038] (2) The board body is provided with the first board and the second board which are hinged to each other, and the foldable design reduces the size of the board body, such that the express transportation cost of the portable laptop desk is reduced, and the portable laptop desk can be easily stored by users.

[0039] (3) The cup holder can adapt to the angle to board body to be kept in the same horizontal plane as the board body.

[0040] The embodiments disclosed above are merely several specific ones of the invention, and the invention is not limited to the above embodiments. Any variations that can be obtained by those skilled in the art should fall within the protection scope of the invention.

Examples

Embodiment Construction

[0027]To more clearly explain the invention, the invention is further described below in conjunction with accompanying drawings.

[0028]In the following description, details of some embodiments are given below to provide a deeper understanding of the invention. Obviously, the embodiments in the following description are merely illustrative ones, and are not all possible ones of the invention. It should be understood that the following specific embodiments are merely used for explaining the invention and are not intended to limit the invention.

[0029]It should be understood that terms “include” and / or “comprise” used in the specification are intended to indicate the presence of features, entireties, steps, operations, elements or modules referred to, and do not exclude the presence or addition of one or more other features, entireties, steps, operations, elements, modules or combinations thereof.

[0030]Referring to FIGS. 1-9, the invention provides a portable laptop desk mounted on chair...

Claims

1. A portable laptop desk mounted on chair armrests, comprising a board body, wherein the board body comprises a working surface and a mounting surface, at least two board sliding mechanisms and at least two armrest sleeves are arranged on the mounting surface, each said board sliding mechanism is correspondingly and fixedly connected to one said armrest sleeve, threaded holes are formed in sides, away from the board sliding mechanisms, of the armrest sleeves, and adjusting knobs are connected into the threaded holes; and when the portable laptop desk is used, the armrest sleeves are disposed around chair armrests and are fixed to the chair armrests by tightening the adjusting knobs, and the board sliding mechanisms slide forward or backward linearly with respect to the armrest sleeves to drive the board body to move.

2. The portable laptop desk mounted on chair armrests according to claim 1, wherein each said board sliding mechanism comprises a connector and a slider, the slider is fixedly arranged on the mounting surface, and the connector is arranged between the board body and the slider; and a strip-shaped hole is formed in the slider, and a connecting pillar inlaid in the strip-shaped hole arranged on a side, close to the board body, of the corresponding armrest sleeve, a mounting hole is formed in an end surface of the connecting pillar, a connecting groove is formed in the connector, a connecting hole is formed in a bottom of the connecting groove, and the connecting pillar is inlaid in the connecting groove by means of the strip-shaped hole.

3. The portable laptop desk mounted on chair armrests according to claim 2, wherein sawtooth protrusions are arranged on inner walls of two opposite ends of the slider, and slots matched with the protrusions are formed in two sides of the connector.

4. The portable laptop desk mounted on chair armrests according to claim 1, wherein the board body comprises a first board and a second board, and the first board and the second board are connected detachably.

5. The portable laptop desk mounted on chair armrests according to claim 1, wherein a first recess is formed in the working surface of the board body, a support frame and a support plate are arranged in the first recess, one end of the support frame is arranged on the support plate and is allowed to be flipped, multiple adjusting grooves are formed in a bottom surface of the first recess, and the other end of the support frame is matched with the adjusting grooves; and rotating pillars are arranged on two sides of the support plate, and holes matched with the rotating pillars are formed in wall surfaces of the first recess.

6. The portable laptop desk mounted on chair armrests according to claim 5, wherein a second recess is arranged on a side, away from the first recess, of the support plate, a support bar for abutting against a laptop is arranged in the second recess, and the support bar is connected to the support plate and is allowed to be flipped.

7. The portable laptop desk mounted on chair armrests according to claim 1, wherein a cup holder is arranged on the mounting surface, and the cup holder is rotatably connected to the board body.

8. The portable laptop desk mounted on chair armrests according to claim 6, wherein flip portions are arranged on edges, away from hinged ends, of the support plate and the support bar.

9. The portable laptop desk mounted on chair armrests according to claim 1, wherein an arc-shaped receding portion is formed on an edge of the board body.

10. The portable laptop desk mounted on chair armrests according to claim 1, wherein a third recess is formed in the board body, and a mouse mat is arranged in the third recess.

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