CN216165964U - Multifunctional reading and writing rack and multifunctional folding table - Google Patents

Abstract

The multifunctional reading and writing rack comprises a reading plate, a book blocking plate assembly, a writing plate, at least one notebook blocking plate, at least one damping hinge, two rotating assemblies, two vertical telescopic legs, two T-shaped joints, two near-end transverse pipes and two far-end transverse pipes; one end of the damping hinge is connected with the writing board, and the other end of the damping hinge is connected with the reading board; the book blocking plate assembly is arranged on the reading plate; the T-shaped joint is respectively connected with the vertical telescopic leg, the near-end transverse pipe and the far-end transverse pipe; one end of the rotating assembly is connected with the writing board, and the other end of the rotating assembly is connected with the vertical telescopic leg; the T-shaped joint is provided with a transverse positioning key; and a transverse moving positioning assembly is arranged on the proximal transverse tube. The novel horizontal positioning key and the horizontal movement positioning assembly can be freely switched over on desks, sofas, the ground, beds and outdoor grasslands, and the four novel springs realize one-hand book turning.

Description

Multifunctional reading and writing rack and multifunctional folding table

Technical Field

The utility model relates to a multifunctional reading and writing rack capable of protecting eyesight and vertebra, belonging to the technical field of stationery and sports tools.

Background

When a user reads a book or a mobile phone, if the distance between the eyes and the book or the mobile phone is too close, the eyes are deformed and become myopia over time, which is why the myopia rate of primary and secondary school students in China is gradually increased (the poor eyesight detection rate of the primary school students is 28%, the primary school students is 60%, and the high school students are 85%). Because most desks are horizontal, people have to lower heads for a long time during writing, the spine is always in a severe bending state, and the spine is deformed after a long time, which is why teenagers have cervical spondylosis patients accounting for 10% -20% of sick people. In fact, many adults (researchers, teachers, news reporters, editors, officials, office workers) also experience the same problem. For this purpose, a writing desk with an adjustable reading stand (CN 200820041780.4) has been invented, because the writing desk is also a common desk (horizontal state), the problem of spinal curvature still occurs during writing; in addition, the patent cannot realize single-hand page turning (the pen in the hand needs to be put down, and the book can be turned over only by using two hands). A reading exclusive reading rack (CN 201520682403.9) was invented, and the following problems were found to exist when the product is actually used: firstly, it cannot effectively prevent the myopia of teenagers, because children are very likely to pull the reading rack to a very close position to read books, and reading the books too close will cause myopia; secondly, it can not realize the single hand page turning; thirdly, because the reading rack only has two book pressing spring pieces with large elasticity, the book pressing spring piece is difficult to be freely used (even is not broken at all) by preschool children and many pupils. Some have developed the reading and writing shelf on the basis of the reading shelf patent (ZL 201520682403.9), the biggest problem that this product exists is that it can only put on the desk, can't put on sofa, bed, floor, open-air lawn, can't be regarded as the drawing board either, can't be regarded as the dining table temporarily either; the second problem is that the book cannot be turned by one hand; the third problem is that it is inconvenient to move the support bar and the grooved support plate in a room because they cannot be locked with each other (example 1: at home, move it from a study room to a dining room, a living room, or a balcony; example 2: at a student's dormitory, move it from a desk to a bed to vacate a place to eat), and it is very troublesome to move the support bar and the grooved support plate apart each time, and to put it down again and to re-insert the support bar and the grooved support plate (sometimes two persons are required to cooperate at the same time because of two support bars and two grooved support plates). The folding table in bed (CN 201320214163.0, CN201910284561.1, CN 201921326484.3) was invented by some people, and this product is not really popular, because parents do not like children to read books in bed, and even children to write, because the folding table can not achieve the purpose of protecting children's eyesight and spine. Whether the utility model can be used for laying on desks, sofas, floors, beds and outdoor grasslands, and turning books by one hand is an important task in front of people.

Disclosure of Invention

The utility model aims to provide a multifunctional reading and writing rack which can be placed on desks, sofas, floors, beds and outdoor grasslands, can be used for turning books by one hand and can protect eyesight and vertebras. The technical idea is as follows: firstly, innovation is carried out on the basis of a single-function reading and writing rack which can only be placed on a desk and a folding table on a bed, namely, a reading plate 11, a damping loose-leaf assembly and a book blocking plate assembly are added on the basis of the folding table; secondly, the transverse supporting tube of the folding table is divided into a near end transverse tube (54, 64) and a far end transverse tube (57, 67); thirdly, near end transverse pipe sinking grooves are formed on the near end transverse pipes (54, 64); fourthly, an accessory transverse moving positioning assembly is arranged in the near-end transverse pipe sinking groove; fifthly, transverse positioning keys (5311, 6311) are added on the T-shaped joint; sixthly, the proximal transverse pipes (54, 64), the distal transverse pipes (57, 67) and the vertical telescopic legs (52, 62) are connected with each other by utilizing T-shaped joints; seventhly, the maximum rotation angle of the rotation assembly can reach nearly 180 degrees (the movable angle of the original folding table is smaller than 45 degrees), and the near-end transverse tube can retract into the far-end transverse tube; eighthly, book pressing spring pieces (13 and 14) and book supporting spring pieces (15 and 16) are additionally arranged on the book blocking plate assembly, so that the function of turning the book by one hand is realized; and ninthly, the pulling type handle rotating assembly is changed into a hand wheel type rotating assembly, and the fixed face gear (5113) and the movable face gear (5122) can be tightly locked because the tightening force of the hand wheel is large, so that the shaking of the tablet can be greatly reduced.

The utility model has the following characteristics:

1) not only can protect the eyesight of children and teenagers, but also can protect the eyesight of adults.

2) Not only can protect the vertebra of children and teenagers, but also can protect the vertebra of adults.

3) The efficiency of learning and working can be improved because the fatigue of eyes and the bending of the neck can be reduced.

4) Not only can be placed on a desk, but also can be placed on a sofa, a floor, a bed and a field lawn.

5) Not only can read, write and draw, but also can place computers and mobile phones.

6) Not only can be used as a field temporary dining table, but also can be used as a field temporary drawing board and can also be used as a chess and card table.

7) Not only can be used as a card table, but also can be used for placing a chessboard, and can also be used for carrying out various entertainment activities when going to outdoor outing.

8) The mobile phone can be seen by sitting on the sofa, and can be taken notes at any time, so that the comfortable seat, the correct writing posture and the proper distance for seeing the mobile phone are skillfully combined, and the sofa is particularly suitable for on-line meeting and on-line teaching.

9) Not only can be seated on a sofa to watch TV, but also can record the knowledge points of the TV at any time.

10) Under the cooperation of the book pressing spring, the newly added book supporting spring enables the book to be turned by one hand, and a pen in the hand is not required to be placed to turn the book.

11) The single-function reading frame in the market only has a book pressing spring but not a book supporting spring, so that the book pressing spring has large deformation and large spring force, and many pupils cannot break the book pressing spring. The multifunctional reading and writing rack adopts the book pressing spring and the book supporting spring at the same time, and the deformation of each spring is small, so that pupils can turn over books with one hand.

12) The book pressing spring and the book supporting spring can rotate, so that the book pressing spring and the book supporting spring can almost adapt to common books with various sizes.

13) The book pressing spring and the book supporting spring can deform and almost adapt to common books with various thicknesses.

14) When a hand wheel type rotation assembly is used, once the hand wheel is tightened, the wobble of the tablet can be minimized.

15) When the cleaning tool is placed on a desk, once the hand wheel is screwed down, the cleaning tool can be freely moved back and forth, cleaning sanitation is facilitated, and the cleaning tool is temporarily moved away from the desk.

16) The characteristic that the placing positions are randomly switched is particularly important for college students because a desk is sometimes required to be used as a temporary dining table, and the multifunctional reading and writing frame can be sometimes temporarily used as a chess and card table.

17) Because of the folding function, the children can be carried along with the bicycle, and even if the children walk around relatives or hotels, the children can learn under the conditions of protecting eyesight and protecting vertebra.

Drawings

FIG. 1 is a front perspective view of a multi-functional reading/writing stand;

FIG. 2 is a rear perspective view of the multifunctional reading/writing stand;

FIG. 3 is a side front perspective view of the multifunctional reading and writing rack on a desk;

FIG. 4 is a side-rear perspective view of the multifunctional reading and writing rack on a desk;

FIG. 5 is a schematic bottom perspective view of the multifunctional reading/writing stand on a desk;

FIG. 6 is a schematic view of the multi-functional reading and writing stand with the support legs folded;

FIG. 7 is a schematic view of the multi-functional reading and writing stand with the support legs and the reading board both folded;

FIG. 8 is a schematic view of a T-shaped support leg assembly;

FIG. 9 is a schematic view of a proximal lateral support assembly;

FIG. 10 is an exploded view of the hand wheel type rotating assembly;

FIG. 11 is a schematic cross-sectional view of the hand wheel assembly (as the hand wheel is tightened);

FIG. 12 is a schematic cross-sectional view of the hand wheel assembly (with the hand wheel disengaged);

FIG. 13 is a schematic view of a book block assembly;

FIG. 14 is a schematic view of a second embodiment of a multi-function reading/writing stand;

FIG. 15 is a schematic view of a third embodiment of a multifunctional reading/writing stand;

FIG. 16 is a diagram of a fourth embodiment of a multifunctional read/write rack;

FIG. 17 is a schematic view of a book guard assembly of a fifth embodiment of the multifunctional reading/writing stand;

FIG. 18 is a schematic view of a book guard assembly of a sixth embodiment of the multifunctional reading/writing stand;

FIG. 19 is a schematic view of a book guard assembly of a seventh embodiment of the multifunctional reading/writing stand;

FIG. 20 is a schematic view of a handle face gear rotary assembly of an eighth embodiment of the multi-function read/write rack;

FIG. 21 is a schematic view of a handle-type three-gear rotating assembly of a ninth embodiment of the multifunctional reading/writing stand;

FIG. 22 is a side front perspective view of the multi-function folding table in position on a sofa, on a floor, in a bed, and in the field;

fig. 23 is a side front perspective view of the multifunctional folding table placed on a table.

Wherein the reference numerals denote the following: the reading board 11, the book block board 12, the first book pressing spring piece 13, the second book pressing spring piece 14, the first book supporting spring piece 15, the second book supporting spring piece 16, the first book block board hinge 17, the second book block board hinge 18, the tablet 21, the fan assembly 22, the first notebook block board 23, the second notebook block board 24, the first damping hinge 25, the second damping hinge 26, the pen placing box 27, the first bottom board support block 28, the second bottom board support block 29, the first rotation assembly 51, the first vertical telescopic leg 52, the first T-shaped joint 53, the first transverse positioning key 5311, the first near-end transverse tube 54, the first accessory transverse movement positioning assembly 55, the first near-end support sleeve 56, the first far-end transverse tube 57, the first far-end support sleeve 58, the near-end transverse tube righting piece 59, the second rotation assembly 61, the second vertical telescopic leg 62, the second T-shaped joint 63, the second transverse positioning key 6311, A second proximal end transverse tube 64, a second accessory transverse moving positioning assembly 65, a second proximal end support sleeve 66, a second distal end transverse tube 67, a second distal end support sleeve 68, a third accessory transverse moving positioning assembly 71, a first book supporting spring movable groove 1201, a second book supporting spring movable groove 1202, a first book blocking plate joint 1203, a second book blocking plate joint 1204, a fixed face gear base 5111, a fixed face gear central hole 5112, a fixed face gear 5113, a fixed face gear base mounting hole 5114, a normally tightened spring 5115, a spring pressure plate 5116, a movable face gear base 5121, a movable face gear 5122, a movable face gear central screw 5123, a movable face gear base hinge hole 5124, a first clamping groove 5125, a second clamping groove 5126, a movable face gear central shaft 5127, a movable face gear central shaft hinge hole 5128, a hand wheel 5131, an internal thread 5132, a hand wheel sinking groove 5133, A hand wheel limit nut 5134, a movable joint 5141 with keys, a hinge hole 5142 of the movable joint with keys, a counter bore 5143 of the movable joint with keys, a vertical telescopic leg connecting hole 5144, a movable joint clamping spring 5145, a movable joint clamping key 5146, a pull-type handle 5151, a first pull-type handle hinge hole 5152, a second pull-type handle hinge hole 5153, a hinge pin 5154, a fixed cylindrical gear base 5161, a fixed cylindrical gear 5162, a button leg through hole 5163, a bolt through hole 5164, a fixed cylindrical gear base mounting hole 5165, a first handle mounting hole 5166, a second handle mounting hole 5167, an intermediate cylindrical gear 5168, a normally loose spring 5169, a movable cylindrical gear base 5171, a movable cylindrical gear 5172, a movable cylindrical gear central internal thread 5173, a movable cylindrical gear base hinge hole 5174, a deformable clamping flange 5175, a push-type handle 5181, a push-type handle hinge hole 5182, a hinge pin 5183, a button 5184, The button comprises a button leg 5185, a keyless movable joint 5191, a keyless movable joint hinge hole 5192, a proximal transverse tube sinking groove 5401, a proximal body positioning hole 5402, a first positioning accessory 5501, a first accessory positioning hole 5502, a distal transverse tube sinking groove 5701, a distal body positioning hole 5702, a second positioning accessory 7101 and a second accessory positioning hole 7102.

Detailed Description

The term "at least one" used in the present invention is understood to mean one or more, n or less, and the value range of n is determined by the product size and the common general knowledge in the art.

First embodiment

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

As shown in FIGS. 1 to 13, the present invention relates to a multifunctional reading and writing rack, comprising a reading board 11, a writing board 21, a fan assembly 22, a first notebook-blocking board 23, a second notebook-blocking board 24, a first damping hinge 25, a second damping hinge 26, a pen-holding box 27, a first board bottom supporting block 28, a second board bottom supporting block 29, a book-blocking board assembly, a first rotating assembly 51, a first vertical telescopic leg 52, a first T-shaped joint 53, a first proximal transverse tube 54, a first accessory transverse moving and positioning assembly 55, a first proximal supporting sleeve 56, a first distal transverse tube 57, a first distal supporting sleeve 58, a second rotating assembly 61, a second vertical telescopic leg 62, a second T-shaped joint 63, a second proximal transverse tube 64, a second accessory transverse moving and positioning assembly 65, a second proximal supporting sleeve 66, a second distal transverse tube 67, a second distal supporting sleeve 68, a first transverse positioning key 5311, A second lateral positioning key 6311; one end of each damping hinge (25, 26) is connected with the writing board 21, and the other end is connected with the reading board 11; the T-shaped joints (53 and 63) are respectively connected with the vertical telescopic legs (52 and 62), the near-end transverse pipes (54 and 64) and the far-end transverse pipes (57 and 67); the transverse positioning keys (5311, 6311) are arranged on the T-shaped joints (53, 63); the accessory transverse moving positioning assembly comprises a positioning accessory 5501, an accessory positioning hole 5502 and a near-end transverse tube righting piece 59; the accessory positioning hole 5502 is formed in the positioning accessory 5501; the near end transverse tube righting piece 59 is fixedly arranged at the tail end of the near end transverse tube 54; the near end transverse pipes (54, 64) are provided with near end transverse pipe sinking grooves 5401; the positioning accessories 5501 are arranged in the near-end transverse tube sinking grooves 5401; the proximal transverse tubes (54, 64) with the positioning attachment 5501 and the proximal transverse tube centralizers 59 mounted thereon are mounted in the distal transverse tubes (57, 67) and can move back and forth; the proximal support sleeve (56, 66) is mounted at the end of the proximal transverse tube (54, 64); the distal support sleeve (58, 68) is arranged at the end part of the distal transverse tube (57, 67); the fan assembly 22 is mounted on the tablet 21; the pen placing box 27 is arranged on the writing board 21; the bottom support blocks (28, 29) are arranged at the bottom of the writing board 21; the book blocking plate assembly comprises a book blocking plate 12, at least two book pressing spring pieces (13, 14) and at least two book supporting spring pieces (15, 16); the lower part of the book blocking plate 12 is provided with book supporting spring movable grooves (1201, 1202); the book pressing spring pieces (13 and 14) are arranged at the top of the book blocking plate 12; the book supporting spring pieces (15 and 16) are arranged in the book supporting spring movable grooves (1201 and 1202); the book guard assembly is mounted on the reading board 11.

The hand wheel type rotating assemblies (51, 61) comprise a fixed end face gear assembly, a movable end face gear assembly, a normally-tightened spring 5115, a spring pressing plate 5116, a movable joint assembly with keys and a hand wheel assembly; the fixed face gear assembly comprises a fixed face gear base 5111, a fixed face gear center hole 5112, a fixed face gear 5113 and a fixed face gear base mounting hole 5114; the movable end face gear assembly comprises a movable end face gear base 5121, a movable end face gear 5122, a movable end face gear central screw 5123, a movable end face gear base hinge hole 5124, a first clamping groove 5125 and a second clamping groove 5126; the hand wheel assembly comprises a hand wheel 5131, hand wheel internal threads 5132, a hand wheel sinking groove 5133 and a hand wheel limiting nut 5134; the movable end face gear central screw 5123 sequentially penetrates through the fixed end face gear central hole 5112, the normally tightened spring 5115 and the spring pressing plate 5116 and is finally connected with the hand wheel internal thread 5132 and the hand wheel limit nut 5134; the movable joint assembly with the key comprises a movable joint 5141 with the key, a movable joint hinge hole 5142 with the key, a movable joint counter bore 5143 with the key, a vertical telescopic leg connecting hole 5144, a movable joint clamping spring 5145 and a movable joint clamping key 5146; the hinged hole 5142 of the movable joint with the key is connected with the hinged hole 5124 of the movable end face gear base; the vertical telescopic leg connecting hole 5144 is connected with the top ends of the vertical telescopic legs (52, 62); the fixed face gear base mounting hole 5114 is fixedly connected with the tablet 21.

If the multifunctional reading and writing rack is in a folded state, the movable joint clamping key 5146 is clamped in the first clamping groove 5125; if the multifunctional reading and writing rack is needed to be used, the movable joint blocking keys 5146 can be moved from the first blocking groove 5125 to the second blocking groove 5126 by pulling the vertical telescopic legs (52, 62). When the multifunctional reading and writing frame is placed on a sofa, on the ground, on a bed or on a field lawn, the writing board can be in a small-angle state (firstly, the handwheels 5131 on the left side and the right side are unscrewed, then the writing board is pressed to a preset angle, and finally the handwheels on the two sides are screwed again) besides being in a horizontal state.

When the multifunctional reading and writing frame needs to be placed on a desk, firstly, hand wheels 5131 on two sides are unscrewed, the vertical telescopic legs (52 and 62) are pulled by hands to be almost parallel to the writing board 21, and at the moment, the vertical telescopic legs (52 and 62) fall on the first board bottom supporting block 28 and the second board bottom supporting block 29 respectively; secondly, the first transverse positioning key 5311 is pressed down and the first proximal transverse tube 54 is moved, and then the first transverse positioning key 5311 is loosened to clamp the first proximal transverse tube 54; third, the second proximal transverse tube 64 is moved while the second transverse alignment key 6311 is pressed, and then the second proximal transverse tube 64 is locked by releasing the second transverse alignment key 6311; the angle between the tablet 21 and the desk can be made to be the most ideal angle by repeating the second step and the third step, thereby realizing the effect of protecting the spine.

Because a damping hinge (25, 26) is provided between the reading plate 11 and the tablet 21, the reading plate can be opened by pushing the upper edge of the reading plate with a hand and then placing the opened book on the bookend assembly, wherein the right book is sandwiched between the first book pressing leaf spring 13 and the first book supporting leaf spring 15 and the left book is sandwiched between the second book pressing leaf spring 14 and the second book supporting leaf spring 16. Because the book supporting spring pieces (15 and 16) are used for clamping the book skillfully, the first book supporting spring piece 15 can be pressed downwards (at the moment, the first book pressing spring piece 13 is not pressed on the book any more) when the book is turned, and then the book to be turned is turned to the other side by fingers (at the moment, the second book supporting spring piece 16 is pressed downwards), the book turning process can be finished by one hand (two hands are not needed to turn the book like a conventional reading board, and the book turning process is really troublesome).

Because the angle of the tablet 21 can be adjusted to the optimum position, the user can hold up the chest to write, and the neck bending or back bending can be reduced, thereby achieving the purpose of protecting the spine. Since the book notes to be turned are placed on the reading plate 21, it is possible to prevent teenagers from reading too close to the book, so that the deformation of the eye lens can be avoided, and the risk of myopia can be reduced.

Today, people all have the cell-phone, and people sit on the sofa and see the cell-phone most of the time, and the short time can make the neck sour, and long-term so will make the vertebra take place to warp. If the multifunctional reading and writing frame is placed on the sofa and the handle machine is placed on the book blocking plate assembly connected with the reading plate 11, the purpose of protecting eyesight or vertebra can be realized at the same time.

From fig. 5-7, it can be seen that the multifunctional reading and writing rack can be folded, so that the multifunctional reading and writing rack can be conveniently placed in an automobile, and the reading and writing rack can be used in time even if a relative or a hotel goes on a business. If the user goes to the field for outing, the table can be used as a temporary table. If the painter needs to go to the field for drawing and collecting wind, the painter can also carry the reading and writing frame with the vehicle to be used as a drawing board (the writing board 21 and the reading board 11 can be adjusted to the same plane).

Second embodiment

FIG. 14 is a schematic view of a second embodiment of a multi-function reading/writing stand; the second embodiment is substantially the same as the first embodiment, the only difference being that the proximal transverse tubes (54, 64) and the distal transverse tubes (57, 67) become one integral tube, the positioning appendages are lengthened (the second positioning appendage 7101 is longer than the first positioning appendage 5501) and the distal transverse tubes (57, 67) are also slotted 5701.

Third embodiment

FIG. 15 is a schematic view of a third embodiment of a multifunctional reading/writing stand; the third embodiment is substantially the same as the second embodiment except that the lateral movement positioning assembly is changed to use a tube lateral movement positioning assembly instead of an attachment lateral movement positioning assembly. At this point, proximal body alignment holes 5402 are formed in the proximal transverse tubes (54, 64).

Fourth embodiment

FIG. 16 is a diagram of a fourth embodiment of a multifunctional read/write rack; the fourth embodiment is substantially identical to the third embodiment, with the only difference being that distal body alignment holes 5702 are provided in the distal transverse tubes (54, 64).

Fifth embodiment

FIG. 17 is a schematic view of a book guard assembly of a fifth embodiment of the multifunctional reading/writing stand; the fifth embodiment is substantially the same as the first embodiment, except that the first bookend hinge 17 and the second bookend hinge 18 are removed, and a first bookend joint 1203 and a second bookend joint 1204 are added; the book blocking plate joints (1203, 1204) are arranged at the lower part of the book blocking plate 12.

Sixth embodiment

FIG. 18 is a schematic view of a book guard assembly of a sixth embodiment of the multifunctional reading/writing stand; the sixth embodiment is substantially the same as the first embodiment, except that the mounting positions of the first book supporting spring piece 15 and the second book supporting spring piece 16 are changed so as to be mounted directly on the reading plate 11 instead of the bookend 12.

Seventh embodiment

FIG. 19 is a schematic view of a book guard assembly of a seventh embodiment of the multifunctional reading/writing stand; the seventh embodiment is substantially the same as the sixth embodiment, except that the first and second book support spring movable grooves 1201, 1202 of the bookend 12 are removed.

Eighth embodiment

FIG. 20 is a schematic view of a handle face gear rotary assembly of an eighth embodiment of the multi-function read/write rack; the eighth embodiment is substantially the same as the first embodiment, except that the movable face gear center screw 5123 is replaced with a movable face gear center shaft 5127, and a movable face gear center shaft hinge hole 5128 is formed in the movable face gear center shaft 5127. The hand wheel 5131 and the hand wheel limit nut 5134 are removed, and a pulling type handle 5151 and a hinge pin 5154 are added.

Ninth embodiment

FIG. 21 is a schematic view of a handle-type three-gear rotating assembly of a ninth embodiment of the multifunctional reading/writing stand; the ninth embodiment is substantially the same as the first embodiment, except that a push handle swivel assembly is used in place of the original hand wheel swivel assembly. The thrust type handle rotating assembly comprises a fixed cylindrical gear assembly, a movable cylindrical gear assembly, a middle cylindrical gear 5168, a normally-loose spring 5169, a button 5184, a thrust type handle 5181, an articulated pin 5183 and a keyless movable joint 5191. The fixed cylindrical gear assembly comprises a fixed cylindrical gear base 5161, a fixed cylindrical gear 5162, a button leg through hole 5163, a bolt through hole 5164, a fixed cylindrical gear base mounting hole 5165, a first handle mounting hole 5166 and a second handle mounting hole 5167; the movable cylindrical gear assembly comprises a movable cylindrical gear base 5171, a movable cylindrical gear 5172, a central internal thread 5173 of the movable cylindrical gear, a hinge hole 5174 of the movable cylindrical gear base and a deformable clamping flange 5175; the button 5184 is provided with a plurality of button legs 5185; the button leg 5185 extends into the button leg through hole 5163; one end of the middle cylindrical gear 5168 is embedded into the fixed cylindrical gear 5162, and the other end is embedded into the movable cylindrical gear 5172; one end of the normally-loose spring 5169 is in contact with the middle cylindrical gear 5168, and the other end of the normally-loose spring is in contact with the movable cylindrical gear base 5171; the push type handle 5181 is coupled to the first and second handle mounting holes 5166 and 5167 by a hinge pin 5183. A keyless movable joint hinge hole 5192 is formed in the keyless movable joint 5191; the hinged hole 5192 of the keyless movable joint is connected with the top ends of the vertical telescopic legs (52, 62); the fixing cylindrical gear base mounting hole 5165 is fixedly connected with the tablet 21.

Tenth embodiment

FIG. 22 is a side front perspective view of the multi-function folding table in position on a sofa, on a floor, in a bed, and in the field; fig. 23 is a side front perspective view of the multifunctional folding table placed on a table. The tenth embodiment is substantially the same as the first embodiment, except that the reading board 11, the damping hinges (25, 26) and the book block assembly are removed, which results in a multi-functional folding table, but which can be placed on a sofa, a bed, a floor, a field lawn, or a desk. The device has the defects that the device can not prevent teenagers from reading books at a short distance and can not turn the books by one hand.

Other embodiments

The term "at least one" in the present invention should be understood to mean one or more than one, and n or less than n, where the value range of n is determined by the product size and the technical common knowledge in the art, and may be 1, 100, or any number from 1 to 100, so that many different embodiments may be formed. It should be understood that the present invention is not limited to the above-described preferred embodiments, which are exemplary only, and those skilled in the art can make various equivalent modifications and substitutions and various combinations to obtain different embodiments in accordance with the spirit of the present invention.

Claims (12)

1. A multifunctional reading and writing rack comprises a reading board (11), a book blocking board assembly, a writing board (21), at least one book blocking board (23, 24), at least one damping hinge (25, 26), two rotating assemblies (51, 61), two vertical telescopic legs (52, 62), two T-shaped joints (53, 63), two near-end transverse pipes (54, 64) and two far-end transverse pipes (57, 67); one end of each damping hinge (25, 26) is connected with the writing board (21), and the other end is connected with the reading board (11); the book blocking plate assembly is arranged on the reading plate 11; the T-shaped joints (53 and 63) are respectively connected with the vertical telescopic legs (52 and 62), the near-end transverse pipes (54 and 64) and the far-end transverse pipes (57 and 67); one end of each rotating assembly (51, 61) is connected with the tablet (21), and the other end is connected with the vertical telescopic legs (52, 62); the T-shaped joint is characterized in that transverse positioning keys (5311, 6311) are arranged on the T-shaped joints (53, 63); the proximal transverse tubes (54, 64) are provided with transverse moving positioning assemblies.

2. The multifunctional reading/writing rack according to claim 1, wherein said lateral movement positioning assembly is an accessory lateral movement positioning assembly or a tube lateral movement positioning assembly.

3. The multifunctional reading and writing rack according to claim 1 or 2, wherein said accessory transverse movement positioning assembly comprises positioning accessories (5501, 7101), accessory positioning holes (5502, 7102); the accessory positioning holes (5502 and 7102) are formed in the positioning accessories (5501 and 7101); the near end transverse pipes (54, 64) are provided with near end transverse pipe sinking grooves (5401); the positioning accessories (5501, 7101) are arranged in the near-end transverse tube sinking groove (5401); the proximal transverse tube (54, 64) to which the positioning attachment (5501, 7101) is mounted can be moved back and forth within the distal transverse tube (57, 67).

4. The multifunctional reading/writing rack according to claim 1 or 3, wherein said attachment lateral movement positioning assembly further comprises a proximal lateral tube stabilizer (59); the near end transverse tube righting piece (59) is fixedly arranged at the tail end of the near end transverse tube (54).

5. The multifunctional reading/writing rack according to claim 1 or 2, wherein said tube body lateral movement positioning assembly comprises a proximal body positioning hole (5402); the proximal body positioning hole (5402) is formed in the proximal transverse tube (54, 64); the cross-sectional dimensions of the proximal transversal tubes (54, 64) and the cross-sectional dimensions of the distal transversal tubes (57, 67) are identical; the proximal transverse tubes (54, 64) are fixedly connected with the distal transverse tubes (57, 67).

6. The multifunctional reading and writing rack as claimed in claim 1, wherein said bookend assembly comprises a bookend (12), at least two book pressing spring strips (13, 14), at least two book supporting spring strips (15, 16); the lower part of the book blocking plate (12) is provided with book supporting spring movable grooves (1201, 1202); the book pressing spring pieces (13 and 14) are arranged at the top of the book blocking plate (12); the book supporting spring pieces (15, 16) are arranged in the book supporting spring movable grooves (1201, 1202).

7. The multifunctional reading/writing rack according to claim 1, wherein said rotation assembly (51, 61) is a hand wheel type rotation assembly or a pull type handle rotation assembly or a push type handle rotation assembly.

8. The multifunctional reading and writing frame as claimed in claim 1 or 7, wherein the hand wheel type rotating assembly (51, 61) comprises a fixed end face gear assembly, a movable end face gear assembly, a normally tight spring (5115), a spring pressure plate (5116), a movable joint assembly with keys and a hand wheel assembly; the fixed face gear assembly comprises a fixed face gear base (5111), a fixed face gear center hole (5112), a fixed face gear (5113) and a fixed face gear base mounting hole (5114); the movable end face gear assembly comprises a movable end face gear base (5121), a movable end face gear (5122), a movable end face gear central screw (5123), a movable end face gear base hinge hole (5124), a first clamping groove (5125) and a second clamping groove (5126); the hand wheel assembly comprises a hand wheel (5131), hand wheel internal threads (5132), a hand wheel sinking groove (5133) and a hand wheel limiting nut (5134); the movable end face gear central screw (5123) sequentially penetrates through the fixed end face gear central hole (5112), the normally-tightened spring (5115) and the spring pressure plate (5116), and is finally connected with the hand wheel internal thread (5132) and the hand wheel limit nut (5134); the movable joint assembly with the key comprises a movable joint with the key (5141), a movable joint hinge hole with the key (5142), a movable joint counter bore with the key (5143), a vertical telescopic leg connecting hole (5144), a movable joint clamping spring (5145) and a movable joint clamping key (5146); the hinged hole (5142) of the movable joint with the key is connected with the hinged hole (5124) of the movable end face gear base; the vertical telescopic leg connecting hole (5144) is connected with the top ends of the vertical telescopic legs (52, 62); the fixed end face gear base mounting hole (5114) is fixedly connected with the tablet (21).

9. The multifunctional reading and writing frame as claimed in claim 1 or 7, wherein the pull-type handle rotation assembly comprises a fixed end face gear assembly, a movable end face gear assembly, a normally-tightened spring (5115), a spring pressure plate (5116), a movable joint assembly with keys, a pull-type handle (5151) and a hinge pin (5154); the fixed face gear assembly comprises a fixed face gear base (5111), a fixed face gear center hole (5112), a fixed face gear (5113) and a fixed face gear base mounting hole (5114); the movable end face gear assembly comprises a movable end face gear base (5121), a movable end face gear (5122), a movable end face gear central shaft (5127), a movable end face gear central shaft hinge hole (5128), a first clamping groove (5125) and a second clamping groove (5126); the movable end face gear central shaft (5127) sequentially penetrates through the fixed end face gear central hole (5112), the normally-tightened spring (5115) and the spring pressing plate (5116) and is finally connected with the pull type handle (5151); the hinge pin (5154) is inserted into the first pull-type handle hinge hole (5152), the movable end face gear central shaft hinge hole (5128) and the second pull-type handle hinge hole (5153) in sequence; the movable joint assembly with the key comprises a movable joint with the key (5141), a movable joint hinge hole with the key (5142), a movable joint counter bore with the key (5143), a vertical telescopic leg connecting hole (5144), a movable joint clamping spring (5145) and a movable joint clamping key (5146); the hinged hole (5142) of the movable joint with the key is connected with the hinged hole (5124) of the movable end face gear base; the vertical telescopic leg connecting hole (5144) is connected with the top ends of the vertical telescopic legs (52, 62); the fixed end face gear base mounting hole (5114) is fixedly connected with the tablet (21).

10. The multifunctional reading and writing frame as claimed in claim 1 or 7, wherein the push type handle rotation assembly comprises a fixed cylindrical gear assembly, a movable cylindrical gear assembly, a middle cylindrical gear (5168), a normally loose spring (5169), a button (5184), a push type handle (5181), a hinge pin (5183) and a keyless movable joint (5191); the fixed cylindrical gear assembly comprises a fixed cylindrical gear base (5161), a fixed cylindrical gear (5162), a button leg through hole (5163), a bolt through hole (5164), a fixed cylindrical gear base mounting hole (5165), a first handle mounting hole (5166) and a second handle mounting hole (5167); the movable cylindrical gear assembly comprises a movable cylindrical gear base (5171), a movable cylindrical gear (5172), a movable cylindrical gear central internal thread (5173), a movable cylindrical gear base hinge hole (5174) and a deformable clamping flange (5175); the button (5184) is provided with a plurality of button legs (5185); the button leg (5185) extends into the button leg through hole (5163); one end of the middle cylindrical gear (5168) is embedded into the fixed cylindrical gear (5162), and the other end of the middle cylindrical gear is embedded into the movable cylindrical gear (5172); one end of the normally-loose spring (5169) is in contact with the middle cylindrical gear (5168), and the other end of the normally-loose spring is in contact with the movable cylindrical gear base (5171); the push type handle (5181) is connected into the first handle mounting hole (5166) and the second handle mounting hole (5167) through a hinge pin (5183); the keyless movable joint (5191) is provided with a keyless movable joint hinge hole (5192); the hinged hole (5192) of the keyless movable joint is connected with the top ends of the vertical telescopic legs (52, 62); the fixed cylindrical gear base mounting hole (5165) is fixedly connected with the tablet (21).

11. The multifunctional reading and writing rack according to claim 1, further comprising a fan assembly (22) and a pen placing box (27), wherein the fan assembly (22) and the pen placing box (27) are mounted on the writing board (21).

12. A multifunctional folding table comprises a writing board (21), two rotating assemblies (51, 61), two vertical telescopic legs (52, 62), two T-shaped joints (53, 63), two near-end transverse pipes (54, 64) and two far-end transverse pipes (57, 67); the T-shaped joint is characterized in that transverse positioning keys (5311, 6311) are arranged on the T-shaped joints (53, 63); the near end transverse pipes (54, 64) are provided with near end transverse pipe sinking grooves (5401); an accessory transverse moving positioning assembly is arranged in the near-end transverse pipe sinking groove (5401); the accessory transverse moving positioning assembly comprises positioning accessories (5501 and 7101) and accessory positioning holes (5502 and 7102); the accessory positioning holes (5502 and 7102) are formed in the positioning accessories (5501 and 7101).

Images