CN106539320A - A kind of Multifunctional all-in-one desk chair - Google Patents

Abstract

The invention discloses a multi-functional integrated table and chair, which comprises a base plate, a table top plate and a chair panel installed on the base plate, wherein the table top plate is connected to the base plate through a first link mechanism, and the first link mechanism includes ends connected to each other. The upper link and the lower link of the hinge link, and the top of the upper link is hinged with the desktop board, the bottom end of the lower link is hinged with the bottom plate, and some teeth are also arranged on the bottom surface of the desktop board. One end of the adjustment bracket is connected, and the other end of the adjustment bracket is pressed against different teeth to realize the different angles of the desktop board; the invention has a reasonable design and integrates functions such as theoretical teaching and learning, various mechanical drawing teaching, and various painting teaching. , so that a desk and chair can have multiple classroom use functions at the same time, and the structure of the present invention is simple and easy to operate.

Description

A multifunctional integrated table and chair

technical field

The invention relates to the technical field of portable tables and chairs, in particular to a multifunctional integrated table and chair.

Background technique

With the improvement of our education level, more and more classroom equipment has entered the classroom, and desks and chairs are emerging in an endless stream. The desks and chairs in the existing lecture theaters and ordinary classrooms have some defects, and also bring some problems. On the one hand, the desks and chairs in the classroom are of uniform height and cannot be adjusted, which cannot meet the ergonomic conditions for different people. Lecture halls are even more inconvenient with tables and chairs connected together; on the other hand, the maintenance of these tables and chairs is relatively complicated, which cannot meet the needs of some special teaching environments (classroom interaction, outdoor teaching, etc.), and the movement of tables and chairs is also troublesome Existing desks and chairs all have these defects to varying degrees, therefore, it is very necessary to study a multifunctional integrated desk and chair to make up for the above-mentioned defects in the prior art.

Contents of the invention

In order to solve the above problems, the present invention provides a multi-functional integrated table and chair. The present invention has a reasonable design and integrates functions such as theoretical teaching and learning, various mechanical drawing teaching, and various painting teaching, so that a table and chair can simultaneously have Multiple classroom use functions, and the structure of the present invention is simple and convenient to operate.

In order to achieve the above object, the present invention provides a multifunctional integrated table and chair, which includes a bottom plate, a table top board and a chair panel installed on the bottom board, wherein the table top board is connected with the bottom board through a first linkage mechanism, and the first The linkage mechanism includes an upper link and a lower link whose ends are hinged to each other, and the top end of the upper link is hinged with the table top, the bottom end of the lower link is hinged with the bottom plate, and several teeth are arranged on the bottom surface of the table top. One end of the adjustment bracket is hinged on the upper link, and the other end of the adjustment bracket is pressed against different teeth to maintain different angles of the desktop board;

A support structure is connected under the chair panel, and the support structure includes a first support rod and a second support rod hinged to each other in the middle, the bottom end of the first support rod is hinged to the bottom plate, and the bottom end of the second support rod is hinged on the slider. Among the two support rods, the top of one support rod is hinged to the bottom surface of the chair panel, and the top of the other support rod supports and contacts the bottom surface of the chair panel;

It also includes a transmission mechanism for synchronizing the actions of the desktop board and the chair panel. The transmission mechanism includes a push rod with one end hinged on the lower link, the other end of the push rod is hinged with one end of the transmission rod, and the other end of the transmission rod is fixed on the slider. superior.

A locking groove is arranged on the transmission rod, and a plurality of locking pins are arranged on the bottom plate, and the locking pins are arranged on the movement track of the locking groove.

The push rod and the transmission rod are hinged through a pin shaft, and a rotatable roller is sheathed on the pin shaft.

A chute is provided on the bottom plate, the slider and the rollers are arranged in the chute, and the two ends of the transmission rod have the same height.

The bottom end of the first support rod is at the same height as the bottom end of the second support rod.

An anti-slip layer is provided on the bottom surface of the bottom plate, and the anti-slip layer is a rubber pad.

The upper connecting rod and the lower connecting rod are hinged by a ratchet rotating shaft mechanism. The ratchet rotating shaft mechanism includes a bolt column, a rotating disk sleeved on the bolt column and a fixed disk fixed on the bolt column. The rotating disk There are ratchets on the opposite surface of the fixed plate for mutual locking, and a spring set on the bolt column is arranged between the two turntables. The bolt column adjusts the rotation by adjusting the position of the nut screwed on the threaded end. Engagement and separation of the disk and the fixed disk; the upper link and the lower link respectively connect one of the rotating disk and the fixed disk.

The first linkage mechanism, support structure and transmission mechanism are all arranged symmetrically in two sets.

The first link mechanism is connected to the rear end of the bottom surface of the desktop board, and the teeth are arranged at the front end of the bottom surface of the desktop board.

The bottom plate is provided with a locking device for locking the desktop board. One end of the locking device is hinged on the side of the bottom board, and the other end is an opening lock that cooperates and locks with a short pin arranged on the side of the desktop board.

There are at least two locking devices arranged symmetrically on both sides of the desktop board.

Compared with the prior art, the present invention has at least the following beneficial effects. The present invention has simple and compact structure, diversified functions, convenient and flexible use, stretchable and foldable, and strong practicability. Through the first link mechanism, support structure and transmission mechanism The reasonable structural design realizes the synchronous lifting of the desktop board and the chair panel, and by adjusting the cooperation between the bracket and the teeth at different distances, the table board is fixed at different angles, which can meet the needs of various teaching modes for different inclination angles of the table board. It is required to integrate theoretical teaching and learning, various mechanical drawing teaching, and various painting teaching functions into one, so that one desk and chair can have multiple classroom use functions at the same time, and the structure is simple; moreover, the present invention can adjust according to its own ergonomics according to different human bodies. Learning conditions, to develop good study habits, is conducive to their own healthy growth. And it can also help correct students with bad study habits, correct sitting posture, etc.

Further, a locking groove is provided on the transmission rod, and several locking pins are arranged on the bottom plate, and the locking pins are arranged on the movement track of the locking groove, so as to realize the locking of the transmission mechanism, and can keep the present invention fixed at a suitable position. status.

Furthermore, both the slider and the roller are arranged in the chute, so that it has a more stable motion trajectory and improves the stability of the lifting performance, and the height of both ends of the transmission rod is the same, and the transmission performance is also more stable.

Furthermore, the reasonable structural design of the ratchet rotating shaft mechanism facilitates the adjustment and locking of the first link mechanism, and the operation is simple and convenient.

The present invention can also be adjusted according to the use position and the angle of the desktop board currently required by the user. The adjustment is simple and the operation is convenient. It is an economical design. At the same time, the present invention also has the advantage of being economical and practical, with low cost, and can be added to most schools. Its multi-functional teaching and multi-functional usability are more practical, and can even be applied to some office buildings. And other occasions, it also has advantages. If it is mass-produced and applied to teaching, office and other fields, its cost will be further reduced, and the cost in the transportation and handling process is low, which is suitable for promotion. Therefore, if we can invent a Different ergonomics, mobile, portable multi-functional integrated mechanical desks and chairs for learning, drawing, painting, etc. At the same time, this multi-functional integrated design idea can solve the problems of existing desks and chairs to a large extent. defect.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the unfolded state of the present invention;

Fig. 2 is a schematic diagram when the desktop board is in a theoretical teaching state;

Fig. 3 is a schematic diagram when the desktop board is in the drawing teaching state;

Fig. 4 is the schematic diagram when desktop board is in drawing teaching state;

Fig. 5 is a structural schematic diagram of the ratchet rotating shaft mechanism;

Fig. 6 is a schematic diagram of the meshing state of the ratchet rotating shaft mechanism.

Fig. 7 is a schematic diagram of the overall structure of the present invention in a folded and contracted state.

In the accompanying drawings: 1-desktop board, 11-first linkage mechanism, 111-upper linkage, 112-lower linkage, 12-adjustment bracket, 13-teeth, 14-anti-slip layer, 15-ratche shaft mechanism , 151-bolt column, 152-nut, 153-spring, 155-rotating disc, 156-fixed disc, 157-ratche, 16-locking device, 2-transmission mechanism, 21-push rod, 22-transmission rod, 23-slider, 24-locking groove, 3-chair panel, 31-support structure, 311-first support rod, 312-second support rod.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the present invention comprises base plate 8 and the desktop board 1 and the chair panel 3 that are installed on the base plate 8, the bottom surface of base plate 8 is provided with antiskid layer 14, and antiskid layer 14 is a rubber pad, and wherein, desktop board 1 passes through The first link mechanism 11 is connected with the bottom plate 8. The first link mechanism 11 includes an upper link 111 and a lower link 112 whose ends are hinged to each other. The bottom of the rod 112 is hinged with the base plate 8, and some teeth 13 are also arranged on the bottom surface of the desktop board 1. The upper connecting rod 111 is hinged to one end of the adjustment bracket 12, and the other end of the adjustment bracket 12 is pressed against different teeth 13. Realize that the desktop board 1 maintains different angles; as shown in Figure 1, the end of the desktop board 1 near the user is the front end, as can be seen from the figure, the first linkage mechanism 11 is connected to the rear end of the bottom surface of the desktop board 1, The teeth 13 are arranged on the front end of the bottom surface of the desktop board 1 .

As shown in Figure 1, the chair panel 3 is connected with a support structure 31, the support structure 31 includes a first support rod 311 and a second support rod 312 hinged to each other in the middle, the bottom end of the first support rod 311 is hinged with the base plate 8, and the second support rod 311 is hinged with the base plate 8. The bottom of support rod 312 is hinged on the slide block 23, and in two support rods, a support rod top is hinged on the bottom surface of chair panel 21, and another support rod top supports the bottom surface of contact chair panel 3; There is a hinge connection between one and the chair panel 3, which realizes the lifting function of the chair panel 3; as a preferred embodiment of the present invention, the top of the first support rod 311 is hinged on the bottom surface of the chair panel 21, and the second support rod The top support of 312 contacts the bottom surface of the chair panel 3. Simultaneously, as can be seen from Fig. 1, the bottom surface of the chair panel 3 and the top contact of the second support rod 312 are provided with grooves, and this structural design can better realize the second The cooperation between the support rod 312 and the chair panel 3 is fixed, which has a better supporting effect.

As shown in Figure 1, the present invention also comprises the transmission mechanism 2 that is used for synchronous desktop board 1 and chair panel 3 actions, and transmission mechanism 2 comprises the push rod 21 that one end is hinged on the lower connecting rod 112, and the other end of push rod 21 is connected with transmission. One end of the rod 22 is hinged, and the push rod 21 and the transmission rod 22 are hinged through a pin shaft, and the pin shaft is provided with a rotatable roller 25, and the other end of the transmission rod 22 is fixed on the slider 23; Also offer a chute, the slide block 23 and the roller 25 are all arranged in the chute, and the height of the two ends of the transmission rod 22 is the same, the transmission rod 22 is provided with a locking groove 24, and the base plate 8 is provided with some locking pins, The locking pin is arranged on the motion track of the locking groove, and the locking pin is inserted into the locking groove 24 to realize the locking of the transmission mechanism 2, so that the desktop board 1 and the chair panel 3 are fixed at the current adjusted position; In other embodiments, the slider 23 can also be replaced by rollers, which can also well achieve the technical effect of the present invention.

In a preferred embodiment of the present invention, the bottom end of the first support rod 311 and the bottom end of the second support rod 312 are at the same height, and in the process of receiving the transmission force of the transmission mechanism 2 for adjustment, the mechanical movement is smoother, and at the same time, The first link mechanism 11 , the support structure 31 and the transmission mechanism 22 of the present invention are all symmetrically arranged in two sets, which can more stably support the tabletop panel 1 and the chair panel 3 , and the mechanical structure is more stable.

As shown in Fig. 1, Fig. 5 and Fig. 6, the upper link 111 and the lower link 112 are articulated through a ratchet shaft mechanism 15, and the ratchet shaft mechanism 15 includes a bolt post 151, which is sleeved on the bolt post 151. The rotating disk 155 and the fixed disk 156 fixed on the bolt column 151 are provided with ratchet teeth 157 for mutual cooperation and locking on the opposite surfaces of the rotating disk 155 and the fixed disk 156. Spring 153 on 151, bolt column 151 is by adjusting the position of the nut 152 that is screwed on its threaded end, adjusts the engagement and separation of rotating disk 155 and fixed disk 156; Upper connecting rod 111 and lower connecting rod 112 connect rotating disk 155 and One of the fixed discs 156; in a preferred embodiment of the present invention, the rotating disc 155 is connected with the upper link 111, and the fixed disc 156 is connected with the lower link 112. During use, the upper link 111 is connected with the lower link The relative rotation between 112 can adjust the angle and position of the desktop board 1, and cooperate with the fixing of the adjustment bracket 12 and the teeth 13 to realize the multi-angle adjustment of the desktop board 1. After the desktop board 1 is adjusted to a suitable angle, it can be adjusted by The ratchet rotating shaft mechanism 15, which can be realized by tightening the bolt post 151 and the nut 152, fixes and locks the relative positions of the upper link 111 and the lower link 112. The operation is simple and convenient, and the fixing effect is good.

As shown in Figure 7, the bottom plate 8 is provided with a locking device 16 for locking the desktop board 1. One end of the locking device 16 is hinged on the side of the bottom board 8, and the other end is an opening lock and a short pin arranged on the side of the desktop board 1. There are at least two locking devices 16 arranged symmetrically on both sides of the desktop board 1 due to the locking of the shafts.

As shown in Figures 2, 3, and 4, by adjusting the cooperation between the bracket 12 and the teeth 13, the free rotation of the desktop board 1 within a certain range is realized, and the angle of the desktop board 1 is adjusted to form a certain inclined support to reach the desktop. The board 1 can be suitable for the purposes of various teaching application scenarios.

The unfolding process of the present invention is as follows, referring to Fig. 1, first release the locking of the desktop board, lift the desktop board 1, while lifting the desktop board 1, because the transmission mechanism 2 transmits the force to the support structure 31 under the chair panel 3, The chair 21 also rises simultaneously. After being lifted to a suitable height, the current position is locked by inserting the locking pin into the locking groove 24, and the position of the first link mechanism 11 is locked by the ratchet shaft mechanism 15, and then the adjustment bracket 12 is used to lock the current position. The support pushes to the teeth 13 at a suitable distance to complete the fixing of the angle of the desktop board 1, wherein the fixing of the angle of the desktop board 1 includes but not limited to the following three states:

In the theoretical teaching state as shown in Figure 2, after the desktop board 1 is raised, the upper link 111 and the lower link 112 are first fixed by the ratchet shaft mechanism 15, and then the clamping can be realized by adjusting the bracket 12 to cooperate with the teeth 13. Table top with zero degree angle.

In the drawing teaching state shown in Figure 3, after the desktop board 1 is raised, the upper link 111 and the lower link 112 are first fixed by the ratchet shaft mechanism 15, and then the desktop board 1 is realized by adjusting the bracket 12 and the teeth 13. The front end is inclined downward, and the angle with the horizontal line is 5°~10°.

In the drawing teaching state shown in Figure 4, after the desktop board 1 is raised, adjust the angle of the upper link 111, fix the upper link 111 and the lower link 112 through the ratchet shaft mechanism 15, and do not use the adjustment bracket 12. For support, directly make the desktop board 1 contact with the connecting rod 3 and get final product.

As shown in Figure 7, in the folding and shrinking process of the present invention, the locking pin is separated from the locking groove 24 first, and then the ratchet shaft mechanism 15 is unlocked, and the adjustment bracket 12 of the desktop board 1 is put down, and the desktop board is naturally put down. Then activate the locking device 16 to realize the locking of the relative position of the desktop board 1 and the bottom board, and then it can be packed or transported.

The invention integrates the functions of theoretical teaching and learning, various mechanical drawing teaching, and various painting teaching, so that one table and chair can have multiple classroom use functions at the same time, which can meet the various use needs of existing teaching, and can be adjusted according to different human bodies. It conforms to the conditions of its own ergonomics, develops good study habits, and is conducive to the healthy growth of users. At the same time, the present invention can also assist students with bad study habits, correct sitting postures, etc.; The required use position and the angle of the desktop board can be adjusted by yourself, the adjustment is simple, and the operation is convenient; not only the use of materials is economical, the structure is simple, but also the space for placement is greatly reduced, easy to place, and can be folded and put away after use. It is an economical design that can effectively improve the use efficiency of space. At the same time, the present invention has a simple structure and low cost, and can be added to most schools. Its multi-functional teaching and multi-functional usability are more practical. It can even be applied to some office and other occasions, which also has advantages. When applied in batches to teaching, office and other fields, the cost will be further reduced, and the invention can be transported after folding, which can also greatly reduce the transportation cost, which is convenient for popularization and application.

Claims (10)

1. a kind of Multifunctional all-in-one desk chair, it is characterised in that including base plate (8) and the desktop being arranged on base plate (8) (1) and seat plate (3), wherein, desktop (1) is connected with base plate (8) by first connecting rod mechanism (11), first connecting rod mechanism (11) upper connecting rod (111) including the mutual hinge-connection in end and lower link (112), and top and the desktop of upper connecting rod (111) (1) hinge-connection, bottom and base plate (8) hinge-connection of lower link (112), is additionally provided with some teeth on desktop (1) bottom surface (13), upper connecting rod (111) upper hinge connects one end of adjustment support (12), and adjustment support (12) other end is by being against different teeth Realize on tooth (13) that desktop (1) keeps different angles；

Supporting construction (31) is connected with the seat plate (3), supporting construction (31) is supported including middle part is hinged first Bar (311) and second support bar (312), first support bar (311) bottom are hinged with base plate (8), the bottom of second support bar (312) End is hinged on slide block (23), in two support bars, and a supporting bar top hinge-connection is in the bottom surface of seat plate (21), another support bar The bottom surface of apical support contact seat plate (3)；

Also include the transmission mechanism (2) for synchronous desktop (1) and seat plate (3) action, transmission mechanism (2) is cut with scissors including one end Push rod (21) of the chain on lower link (112), the other end of push rod (21) and one end hinge-connection of drive link (22), drive link (22) the other end is fixed on slide block (23).

2. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that arrange on the drive link (22) There is a lock groove, base plate is provided with some lock pins on (8), and lock pin is arranged on the movement locus of lock groove.

3. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that the push rod (21) and drive link (22) realize being hinged by bearing pin, and on the bearing pin, be arranged with rotatable roller (25).

4. a kind of Multifunctional all-in-one desk chair according to claim 3, it is characterised in that offer on the base plate (8) Chute, slide block (23) and roller (25) are arranged in chute, and drive link (22) two ends are highly identical.

5. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that the first support bar (311) Bottom is in sustained height with the bottom of second support bar (312).

6. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that on the bottom surface of the base plate (8) Skid resistant course (14) is provided with, the skid resistant course (14) is rubber blanket.

7. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that the upper connecting rod (111) and under It is hinged by spine tooth rotating shaft mechanism (15) between connecting rod (112), spine tooth rotating shaft mechanism (15) includes by bolt column (151), is arranged Rotation dish (155) and the fixed disk (156) being fixed on bolt column (151) on bolt column (151), the rotation dish (155) the spine tooth (157) for the locking that cooperates and on the opposite face of fixed disk (156) is provided with, is also set between two rotating disks The spring (153) being set on bolt column (151) is equipped with, bolt column (151) is screwed in the nut (152) of its end of thread by adjusting Position, adjust rotation dish (155) and fixed disk (156) engagement and separation；Upper connecting rod (111) and lower link (112) are respectively One in connection rotation dish (155) and fixed disk (156).

8. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that the first connecting rod mechanism (11), supporting construction (31) and transmission mechanism (22) are two sets and are symmetrical arranged.

9. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that the first connecting rod mechanism (11) The bottom surface rear end of desktop (1) is connected to, teeth (13) are arranged on the bottom surface front end of desktop (1).

10. a kind of Multifunctional all-in-one desk chair according to claim 1, it is characterised in that be provided with the base plate (8) For locking the locking device (16) of desktop (1), described locking device (16) one end is hinged on base plate (8) side, the other end Latch for opening and coordinate sealed with the short pin shaft for being arranged on desktop (1) side.