Folding desk and chair convenient to carry

Abstract

The folding desk and chair convenient to carry comprises a bottom frame, first telescopic mechanisms are symmetrically installed at the upper end of the bottom frame, check blocks are installed at the upper ends of the first telescopic mechanisms, rotating shafts are rotationally connected into the check blocks, a desk is installed between the two rotating shafts, a first round plate is installed at the rear end of the rear side rotating shaft, and a first positioning mechanism is arranged on one side face of the round plate. A second round plate is installed at the rear end of the rotating rod; a second positioning mechanism is arranged on the side face of the second round plate; second telescopic mechanisms are installed at the upper ends of the bottom rods; a seat plate is installed at the upper ends of the two second telescopic mechanisms; a third positioning mechanism is arranged on the side face of the third circular plate, and a backup plate is installed on the outer surface of the rotating rod. According to the foldable desk, the desk, the seat plate and the backup plate can be folded together, carrying and transportation are facilitated, meanwhile, moving and carrying are facilitated through the universal wheels, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of desk and chair, concretely relates to a folding desk and chair convenient to carry. BACKGROUND

[0002] Desk and chair, desk and chair used by students in class, is a kind of desk and chair, also called student desk and chair, school desk and chair. Desk and chair can be divided according to age, material and function. In the prior art, desk and chair is large in size and is a whole structure, cannot be folded, when transporting, staff needs to separate and carry the whole, it is not convenient, time-consuming and laborious. Therefore, the technical personnel in the field provide a folding desk and chair convenient to carry to solve the problems in the above background technology. CONTENT OF UTILITY MODEL

[0003] To solve the above technical problems, the utility model provides a folding desk and chair convenient to carry, including the chassis, the symmetry installation telescopic mechanism one on the upper end of the chassis, the installation stopper on the upper end of telescopic mechanism one, the rotary connection pivot in the inside of stopper, install desk between two pivots, install round plate one on the rear end of rear pivot, set up positioning mechanism one on the side of round plate one, and positioning mechanism one is fixed on the side of telescopic mechanism one;

[0004] The mobile mechanism is symmetrically installed on the upper end of the chassis, the rotary rod is rotatably connected to the left part in the chassis, the bottom bar is symmetrically installed on the outer surface of the rotary rod, the round plate two is installed on the rear end of the rotary rod, the positioning mechanism two is arranged on the side of the round plate two, and the positioning mechanism two is fixed on the side of the chassis;

[0005] The telescopic mechanism two is installed on the upper end of the bottom bar, the seat plate is installed on the upper end of the two telescopic mechanism two, the rotary rod is rotatably connected to the left end of the seat plate, the round plate three is installed on the rear end of the rotary rod, the positioning mechanism three is arranged on the side of the round plate three, and the positioning mechanism three is fixed on the side of the seat plate, and the backrest is installed on the outer surface of the rotary rod.

[0006] Preferably, the telescopic mechanism one and the telescopic mechanism two each include a hollow rod and a solid rod, a plurality of clamping holes are formed in the side of the hollow rod, a sliding block is slidably connected in the hollow rod, an elastic clamping block is mounted on the side of the sliding block, the elastic clamping block corresponds to the position of the clamping hole, the solid rod is mounted on the upper end of the sliding block, and the upper end of the solid rod penetrates through the hollow rod.

[0007] Preferably, the rear end of the round plate one, the round plate two and the round plate three is provided with two positioning grooves, and the angle between the two positioning grooves is ninety degrees.

[0008] Preferably, the positioning mechanism one, the positioning mechanism two and the positioning mechanism three each include a fixed block and a groove body, the groove body is formed in the side of the fixed block, a pulling block is slidably connected in the groove body, a positioning block is mounted on the lower end of the pulling block, a pulling rod is mounted on the upper end of the pulling block, the pulling rod is fixedly connected with a pull ring by penetrating through the fixed block, and a spring two is sleeved on the outer surface of the pulling rod.

[0009] Preferably, the moving mechanism comprises a hollow block, a threaded rod rotatably connected inside the hollow block, a motor installed on the upper end of the threaded rod, and a lifting plate threadedly connected to the outer surface of the threaded rod, and universal wheels symmetrically installed on the lower end of the lifting plate.

[0010] The present application has the following technical effects and advantages:

[0011] The desk, the seat plate and the back plate can be folded together, which is convenient for carrying and transporting. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a structural schematic view of the present application;

[0013] Fig. 2 is a folding schematic view of the present application;

[0014] Fig. 3 is a folding schematic view of the first and second telescopic mechanisms of the present application;

[0015] Fig. 4 is a structural schematic view of the first, second and third positioning mechanisms of the present application;

[0016] Fig. 5 is a structural schematic view of the moving mechanism of the present application;

[0017] In the drawings:

[0018] 1, base frame; 2, first telescopic mechanism; 3, stop block; 4, desk; 5, round plate one; 6, positioning groove; 7, first positioning mechanism; 8, moving mechanism; 9, rotating rod;

[0019] 10, round plate two; 11, second positioning mechanism; 12, base rod; 13, second telescopic mechanism; 14, seat plate; 15, rotating rod; 16, round plate three; 17, third positioning mechanism; 18, back plate; 19, hollow rod;

[0020] 20, clamping hole; 21, sliding block; 22, elastic clamping block; 23, solid rod; 24, fixed block; 25, groove body; 26, pulling block; 27, positioning block; 28, pulling rod; 29, spring;

[0021] 30, hollow block; 31, threaded rod; 32, motor; 33, lifting plate; 34, universal wheel. DETAILED DESCRIPTION

[0022] The embodiments of the present application are presented by way of example and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application in order to design various embodiments with various modifications for particular uses according to the principles of the present application.

[0023] Please refer to Figs. 1-5 In the embodiment, a folding desk and chair convenient to carry is provided, which comprises a bottom frame 1, a telescopic mechanism one 2 is symmetrically installed on the upper end of the bottom frame 1, a stop block 3 is installed on the upper end of the telescopic mechanism one 2, a rotating shaft is rotatably connected in the stop block 3, a desk 4 is installed between the two rotating shafts, a circular plate one 5 is installed at the rear end of the rear rotating shaft, a positioning mechanism one 7 is arranged on the side surface of the circular plate one 5, and the positioning mechanism one 7 is fixed on the side surface of the telescopic mechanism one 2, a moving mechanism 8 is symmetrically installed on the upper end of the bottom frame 1, the moving mechanism 8 comprises a hollow block 30 and a lifting plate 33, a threaded rod 31 is rotatably connected in the hollow block 30, a motor 32 is installed on the upper end of the threaded rod 31, the lifting plate 33 is threadedly connected to the outer surface of the threaded rod 31, universal wheels 34 are symmetrically installed on the lower end of the lifting plate 33, a rotating rod 9 is rotatably connected to the left part in the bottom frame 1, bottom rods 12 are symmetrically installed on the outer surface of the rotating rod 9, a circular plate two 10 is installed at the rear end of the rotating rod 9, a positioning mechanism two 11 is arranged on the side surface of the circular plate two 10, and the positioning mechanism two 11 is fixed on the side surface of the bottom frame 1, telescopic mechanisms two 13 are installed on the upper end of the bottom rods 12, a seat plate 14 is installed on the upper end of the two telescopic mechanisms two 13, the telescopic mechanism one 2 and the telescopic mechanism two 13 each comprise a hollow rod 19 and a solid rod 23, a plurality of clamping holes 20 are formed in the side surface of the hollow rod 19, a sliding block 21 is slidably connected in the hollow rod 19, elastic clamping blocks 22 are installed on the side surface of the sliding block 21, and the elastic clamping blocks 22 are located corresponding to the clamping holes 20, the solid rod 23 is installed on the upper end of the sliding block 21 and passes through the hollow rod 19, a rotating rod 15 is rotatably connected to the left end of the seat plate 14, a circular plate three 16 is installed at the rear end of the rotating rod 15, two positioning grooves 6 are formed in the rear end of the circular plate one 5, the circular plate two 10 and the circular plate three 16, and the angle between the two positioning grooves 6 is ninety degrees, a positioning mechanism three 17 is arranged on the side surface of the circular plate three 16, and the positioning mechanism three 17 is fixed on the side surface of the seat plate 14, the positioning mechanism one 7, the positioning mechanism two 11 and the positioning mechanism three 17 each comprise a fixed block 24 and a groove 25, the groove 25 is formed in the side surface of the fixed block 24, a pulling block 26 is slidably connected in the groove 25, a positioning block 27 is installed on the lower end of the pulling block 26, a pulling rod 28 is installed on the upper end of the pulling block 26, and the pulling rod 28 is fixedly connected with a pull ring by penetrating through the fixed block 24, a spring two 29 is sleeved on the outer surface of the pulling rod 28, and a backrest 18 is installed on the outer surface of the rotating rod 15.

[0024] The working principle of the utility model is: through the cooperation of elastic clamping block 22 and the lowest position's clamping hole 20, the overall length of telescopic mechanism one 2 and telescopic mechanism two 13 becomes shortest, thereby the desk 4 and the sitting plate 14 drop to the lowest point;

[0025] Then, rotate the desk 4 to rotate ninety degrees perpendicular to the chassis 1, the desk 4 drives the round plate one 5 to rotate ninety degrees through the rotating shaft, then, the spring 29 pushes the pull block 26 to reset, the pull block 26 drives the positioning block 27 to insert into the corresponding positioning slot 6, fixes the position of the round plate one 5, thereby fixes the position of the desk 4;

[0026] Then, rotate the desk 4 to rotate ninety degrees perpendicular to the chassis 1, the desk 4 drives the round plate one 5 to rotate ninety degrees through the rotating shaft, then, the spring 29 pushes the pull block 26 to reset, the pull block 26 drives the positioning block 27 to insert into the corresponding positioning slot 6, fixes the position of the round plate one 5, thereby fixes the position of the desk 4;

[0027] Then, rotate the desk 4 to rotate ninety degrees perpendicular to the chassis 1, the desk 4 drives the round plate one 5 to rotate ninety degrees through the rotating shaft, then, the spring 29 pushes the pull block 26 to reset, the pull block 26 drives the positioning block 27 to insert into the corresponding positioning slot 6, fixes the position of the round plate one 5, thereby fixes the position of the desk 4;

[0028] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art and related fields without creative labor should belong to the protection scope of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A folding desk and chair for easy handling, comprising a base frame (1), characterized in that, The bottom frame (1) upper end symmetry installs telescopic mechanism one (2), telescopic mechanism one (2) upper end installs stop block (3), stop block (3) inside rotary connection pivot, install desk (4) between two pivots, rear pivot rear end installs round plate one (5), round plate one (5) side sets up positioning mechanism one (7), and positioning mechanism one (7) is fixed on telescopic mechanism one (2) side face; The bottom frame (1) upper end symmetry installs moving mechanism (8), the bottom frame (1) left part rotary connection rotary lever (9), rotary lever (9) outer surface symmetry installs bottom bar (12), rotary lever (9) rear end installs round plate two (10), round plate two (10) side sets up positioning mechanism two (11), and positioning mechanism two (11) is fixed on the bottom frame (1) side face; Bottom bar (12) upper end installs telescopic mechanism two (13), two telescopic mechanism two (13) upper end installs seat board (14), seat board (14) left end rotary connection rotary lever (15), rotary lever (15) rear end installs round plate three (16), round plate three (16) side sets up positioning mechanism three (17), and positioning mechanism three (17) is fixed on seat board (14) side face, rotary lever (15) outer surface installs backboard (18).

2. The foldable school desk and chair of claim 1, wherein, The telescopic mechanism one (2) and telescopic mechanism two (13) all include hollow rod (19) and solid rod (23), hollow rod (19) side face sets up several clamping holes (20), hollow rod (19) inside slide connection sliding block (21), sliding block (21) side installs elastic clamping block (22), and elastic clamping block (22) corresponds the position of clamping hole (20), sliding block (21) upper end installs solid rod (23), and solid rod (23) upper end passes through hollow rod (19).

3. The foldable school desk and chair of claim 1, wherein, The round plate one (5), round plate two (10) and round plate three (16) rear end all set up two positioning grooves (6), the angle between two positioning grooves (6) is ninety degrees.

4. The foldable school desk and chair of claim 1, wherein, The positioning mechanism one (7), positioning mechanism two (11) and positioning mechanism three (17) all include fixed block (24) and groove (25), fixed block (24) side face sets up groove (25), groove (25) inside slide connection pull block (26), pull block (26) lower end installs positioning block (27), pull block (26) upper end installs pull rod (28), and pull rod (28) passes through fixed block (24) fixed connection pull ring, pull rod (28) outer surface sets up spring two (29).

5. The foldable school desk and chair of claim 1, wherein, The moving mechanism (8) includes hollow block (30) and lifting plate (33), hollow block (30) inside rotary connection threaded rod (31), threaded rod (31) upper end installs motor (32), threaded rod (31) outer surface thread connection lifting plate (33), lifting plate (33) lower end symmetry installs universal wheel (34).

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