CN203762562U - Foldable-type combined desk and chair - Google Patents

Abstract

The utility model relates to a folding desk and chair, in particular to a folding one-piece desk and chair, which belongs to the technical field of teaching equipment. The utility model provides a simple, multi-functional and space-saving table and chair, which uses a crank slider mechanism to realize the folding of the chair, uses a parallelogram mechanism to realize the folding of the tabletop and the drawer, and uses the ratchet mechanism to realize the book elevation on the desktop The inclination and the lifting control of the height of the chair surface, so as to realize the function of placing the drawing board and improve the user's comfort, achieve the integration of tables and chairs, occupy a small area, fold and dustproof, can place drawing boards and meet the needs of people of different heights The needs of the population.

Description

A foldable one-piece desk and chair

technical field

The utility model relates to a folding table and chair, in particular to a foldable dustproof one-piece desk and chair, which belongs to the technical field of teaching equipment.

Background technique

At present, the desks and chairs used in the classrooms of various schools are all fixed on the ground. The tabletop and the chair surface cannot be folded, and the height cannot be adjusted. Moreover, the existing desks and chairs are fixed in rows and cannot be moved flexibly. At the same time, they do not have the function of placing a drawing board. This not only takes up a lot of space, but is not dustproof, and it is clumsy to use and has a single function.

Chinese utility model patent "A Classroom Table and Chair" (Application No.: 201220157356.2) discloses a desk with universal wheels installed at the bottom of the legs, and several hooks arranged in a row on the side of the desk for hanging folding chairs , its shortcomings are: the separation of tables and chairs takes up a lot of space, the desktop cannot be folded and dust-proof, and only has basic desk functions; the invention patent "One-piece Desk and Chair for Classroom" (application number: 201220061871. And the shelf plate at the lower end is hinged by connecting rods, and rotates through the upper and lower shafts. Its disadvantages are: the desktop cannot be folded, the whole cannot be moved, and it takes up a lot of space; the invention patent "Combined Folding Table and Chair" (application No.: 201020567484.5) discloses a combined folding table and chair, including a table board and table board legs, a seat and seat legs, and the table board legs and seat legs are cross-fixed and connected, respectively equipped with telescopic The height adjustment device is equipped with a foot with casters at the lower end of the legs of the table board. Its disadvantages are: the tables and chairs are independent, and the tables and chairs are easy to be placed irregularly during use. The utility model patent "An Adjustable Teaching Table and Chair" (Application No.: 201220482210.5) is characterized by using the seat support rod to be fixedly installed in the classroom through the seat support rod at the lower end and the cloth strip installation structure of the seat support rod at a pre-set position. Its disadvantages are: tables and chairs cannot be moved and folded, have a single function, are inconvenient and flexible to use, and take up a large space.

In summary, at present there is no combined desk and chair that can integrate the drawing stand and the partition and can realize the functions of adjusting the height of the chair, moving, folding and packing.

Contents of the invention

Aiming at the deficiencies of the background technology, the utility model provides a simple, multi-functional and space-saving table and chair, which uses a crank slider mechanism to realize the folding of the chair, uses a parallelogram mechanism to realize the folding of the desk and the drawer, and uses the spine The mechanism realizes the inclination of the book facade on the desktop and the lifting control of the height of the chair surface, so as to realize the function of placing the drawing board and improve the comfort of the user. The quick joint is used to realize the free arrangement and combination of tables and chairs, achieving the integration of tables and chairs, occupying an area Small in size, foldable and dustproof, it can be used to place drawing boards to meet the needs of people of different heights, group discussions, indoor and outdoor meetings and other occasions.

The technical scheme of the utility model is: a foldable conjoined desk and chair, including a chair surface, a support frame and a desk table, the desk surface is arranged on the upper part of the support frame, and the chair surface is arranged on the middle part of the support frame, and it is characterized in that: A rear support rod is arranged on the support frame, and the rear support rod is provided with an inner chute of the rear support rod, and the slide block is arranged in the inner chute of the rear support rod. Slide in the chute in the rear support rod. The beneficial effect is that the automatic unfolding and folding function of the chair surface can be realized.

The one-piece desk and chair described above is characterized in that: the support frame is also provided with upper spines and lower spines; when the chair surface is parallel to the support frame, the end of the rotating shaft is locked into the lower spines. The beneficial effect is that the lifting function of the chair can be realized.

The one-piece desk and chair described above is characterized in that there is a small drawer under the desk, and the small drawer can slide and expand.

The one-piece desk and chair described above is characterized in that: the left and right sides of the desk are hinged with double connecting pieces and the lower drawer surface. The beneficial effect is that the surface of the lower drawer can rotate around the fixed end of the desk.

The one-piece desk and chair described above is characterized in that: the desk top also includes a book facade and a telescopic rod, one end of the telescopic rod is connected to the book facade, and the other end is connected to the desk top through a spine in the groove. The beneficial effect is that the inclination of the book facade can be changed.

The one-piece desk and chair described above is characterized in that: the support frame is provided with a chute, and the desk table can be slid and shrunk or folded along the chute.

The one-piece desk and chair described above is characterized in that: the support frame is also provided with a quick joint and a protruding shaft. The beneficial effect is that the combination of multiple one-piece desks and chairs can be realized.

Description of drawings

Fig. 1 is the general structural diagram that table and chair are expanded;

Fig. 2 is the structural diagram of the state of the chair surface close to the support frame in Fig. 1;

Figure 2(a) is a partial enlarged view of A in Figure 2;

Fig. 3 is a structural diagram of the raised state of the seat surface in Fig. 2;

Figure 3 (a) is a partial enlarged view of B in Figure 3;

Fig. 4 is a structural diagram of the condensation state of the lower drawer surface in Fig. 1;

Figure 4(a) is a partial enlarged view of C in Figure 4;

Fig. 5 is a structural diagram of a book facade tilted at a certain angle on the desktop;

Figure 5 (a) is a partial enlarged view of D in Figure 5;

Fig. 6 is the front structure diagram of the desk top;

Figure 6(a) is a partial enlarged view of E in Figure 6;

Figure 7 is a structural diagram of the desktop hidden in the support frame chute;

Figure 7 (a) is a partial enlarged view of F in Figure 7;

Fig. 7 (b) is the partial enlarged view of G among Fig. 7;

Figure 8 is a row combination diagram of the tables and chairs series;

Fig. 9 is an arrangement diagram of a conference table formed by combining tables and chairs.

Implementation

Markings in the attached drawings:

Among the accompanying drawings 1: 1-book facade, 2-telescopic rod, 3-protrusion, 4-small drawer, 5-desk top, 6-connecting sheet, 7-lower drawer surface, 8-upper spine, 9- Inner chute of support frame, 10-slider, 11-inner chute of rear support rod, 12-quick joint, 13-rear support rod, 14-connecting rod, 15-support frame, 16-protruding shaft, 17-seat surface , 18-lower spines;

In accompanying drawing 2: 8-go up spine, 13-rear support bar, 15-support frame, 16-protruding shaft, 17-seat surface, 18- bottom spine, 19- rotating shaft;

Among the accompanying drawings 2 (a): 18-lower spines, 19-rotating shaft;

In accompanying drawing 3: 8-go up spine, 13-rear support bar, 15-support frame, 17-seat surface, 18- bottom spine, 19- rotating shaft;

Among the accompanying drawings 4: 4-small drawer, 5-desk top, 6-connecting sheet, 7-lower drawer surface, 15-support frame, 23-groove;

In accompanying drawing 4 (a): 11- rear support rod inner chute, 13- rear support rod, 24- connecting rod

Among the accompanying drawings 5: 1-book facade, 5-book table top, 20-thorn bar, 21-book table front groove

Among the accompanying drawings 5 (a): 2-telescopic rod, 20-thorn bar;

In accompanying drawing 6: 25-extending end

In accompanying drawing 7: chute in 9-support frame, 15-support frame, 22-desktop;

Among the accompanying drawings 8: 12-quick connector, 16-protruding shaft;

Among the accompanying drawings 9: 5-desk top, 15-support frame, 17-chair surface.

Below in conjunction with the utility model example for further description:

As shown in Figure 1 and Figure 2, the desk and chair can realize the folding function of the seat surface, mainly including the desk surface 5, the support frame 15 and the chair surface 17, wherein the desk surface 5 is arranged on the top of the support frame 15, and the chair surface 17 is arranged on the top of the support frame 15. The middle part of support frame 15. When the chair is fully unfolded, as shown in Figure 1, the chair surface 17 is turned up by hand, and the connecting rod 24 at the end of the chair surface 17 drives the slide block 10 hinged with the connecting rod 24 to slide in the inner chute 11 of the rear support rod. When the chair surface 17 is overturned to the vertical state, the chair surface 17 can lean against the support frame 15, and the slide block 10 also just arrives at the lower limit position of the rear support rod 13, and at this moment the chair is folded. When using the chair, turn down the chair surface 17 to drive the connecting rod 24 of the chair surface 17 to rotate, and the connecting rod at the end of the chair surface is hinged with the slider 10 in the inner chute 11 of the rear support rod 13, so that the slider 10 slides upwards in the inner chute 11 of the rear support rod, and when the seat surface 17 reaches the horizontal position, the slide block slides to the upper limit position of the inner chute 11 of the rear support rod.

Referring to Fig. 2 and Fig. 3, the table and chair can realize the lifting function of the chair. When the chair surface 17 was substantially parallel to the support frame 15, the end of the rotating shaft 19 of the seat surface 17 was locked in the lower spine 18 of the support frame 15, and the top end of the rear support rod 13 was locked on the upper spine of the support frame 15. In the bar 8, lift the seat surface 17 upwards like this, drive the rear support rod 13 to move upwards as a whole, and synchronously change the positions of the rotating shaft 19 end of the chair surface 17 and the top of the rear support rod 13 in the upper and lower spines, so that the seat surface can be realized in the new position. lock at a height of .

Referring to Fig. 1 and Fig. 4, the desk and chair can realize the functions of pulling out and retracting small drawers, separating and integrating the desk surface 5 and the drawer surface 7. There is a small drawer 4 under the desk top 5, and the small drawer 4 can slide and expand in the desk top 5. The left and right sides of the desk top 5 are respectively hinged with double connecting pieces 6 and are hinged with the lower drawer face 7, so that the lower drawer face 7 can rotate around the fixed end of the desk top 5. When the lower drawer surface 7 and the desk surface 5 are in the expanded position, the lower drawer surface 7 is rotated upward until it is condensed with the desk surface 5 to form a whole. When the lower drawer surface 7 is condensed with the desk top 5 , turn the lower drawer surface 7 downward until the lower drawer surface 7 is engaged with the groove 23 of the support frame 15 .

Referring to Figure 1 and Figure 5, the tables and chairs can realize the functions of drawing board support and book stand. The book facade 1 is on the desk 5, and its lower end is hinged with an end of the telescopic rod 2. When the other end of the telescopic rod 2 moves in the spine 20 in the groove 21, the inclination of the book facade 1 can be changed.

Referring to Fig. 6 and Fig. 7, the desk and chair can realize the overall hidden function of the desk top and the drawer surface. After the desk top and the drawer face are condensed, the whole is upturned to the vertical state and can be slowly put down in the chute 9 in the support frame 15, and can be hidden in the chute 9 inside the support frame. The desk top 5 is pulled out from the chute 9 to the uppermost end, that is, the overhanging end 25 just bears against the uppermost end of the chute 9 in the support frame, so the desk top 5 can turn over to a horizontal position around the overhanging end. the

Referring to Fig. 1, Fig. 8, and Fig. 9, the tables and chairs can realize the functions of free arrangement and combination. A quick connector 12 and a protruding shaft 16 are arranged on the support frame 15, so that a table and chair quick connector 12 can be combined with another table and chair protruding shaft 16. In this way, the quick connectors 12 and the protruding shafts 16 between tables and chairs can be utilized to cooperate with each other to achieve the purpose of free arrangement and combination.

The beneficial effects of the utility model are: realizing the integration of tables and chairs, occupying a small area, saving space, and being dust-proof; drawing boards or books can be placed; the chair surface can be raised and lowered; tables and chairs can be flexibly moved to realize free arrangement and combination ; And the parallelogram mechanism, the slider crank mechanism and the ratchet mechanism can be used for the teaching demonstration of the mechanical design course.

Claims (7)

1. a collapsible siamesed desk and chair, comprise seat (17), bracing frame (15) and desk surface (5), desk surface (5) is arranged on the top of bracing frame (15), seat (17) is arranged on the middle part of bracing frame (15), it is characterized in that: back support rod (13) is set on bracing frame (15), in back support rod (13), be provided with back support rod internal chute (11), slide block (10) is arranged in back support rod internal chute (11), seat (17) back side is provided with connecting rod (24) and rotating shaft (19), the hinged slide block (10) of connecting rod (24) can slide in back support rod internal chute (11).

2. collapsible siamesed desk and chair as claimed in claim 1, is characterized in that: on described bracing frame (15), be also provided with sour jujube bar (8), lower sour jujube bar (18); When seat (17) is parallel with bracing frame (15), in the sealed lower sour jujube bar of the end of rotating shaft (19) (18).

3. collapsible siamesed desk and chair as claimed in claim 1, is characterized in that: under described desk surface (5), have little drawer (4), little drawer (4) Slidable telescopic.

4. collapsible siamesed desk and chair as claimed in claim 1, is characterized in that: described desk surface (5) to be each side hinged with dual connecting plate (6) and lower drawer face (7) hinged.

5. the collapsible siamesed desk and chair as described in claim 1,3 or 4, it is characterized in that: described desk surface (5) also comprises book end face (1) and expansion link (2), expansion link (2) one end is connected with book end face (1), and the other end is connected with desk surface (5) by the sour jujube bar (20) in groove (21).

6. collapsible siamesed desk and chair as claimed in claim 1 or 2, is characterized in that: described bracing frame (15) is provided with chute (9), and desk surface (5) can slide and shrinks or fold along chute (9).

7. collapsible siamesed desk and chair as claimed in claim 1 or 2, is characterized in that: described bracing frame (15) is also provided with snap joint (12), protruding axle (16).