CN103876513B - A kind of portable multifunctional tables and chairs - Google Patents

Abstract

The present invention provides a multifunctional portable desk and chair and a combined multifunctional portable desk and chair, which include a rectangular back frame, and a shaft that can move up and down along the height direction of the frame is arranged in the back frame, and the shaft is covered with A chair surface that can rotate around a shaft is provided, and the bottom surface of the chair surface is provided with telescopic legs. The present invention has functions such as being foldable, liftable, capable of switching between single and double persons, and integration of tables and chairs.

Description

A multifunctional portable desk and chair

technical field

The invention relates to a combined multifunctional portable table and chair.

Background technique

The structures and functions of the existing tables and chairs are basically separated, or connected by simple structures. Although some tables are adjustable in size, the structure is relatively complicated and the adjustable amount is limited. The functions of the tables and chairs are single, and it is difficult to provide diversification. Features.

Contents of the invention

The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that the structure and function of the existing table and chair are separated, the function is single, and the structure is relatively complicated.

The first embodiment of the present invention is: a multifunctional portable table and chair, comprising a rectangular back frame, the back frame is provided with a shaft that can move up and down along the height direction of the frame, and the shaft is sleeved There is a chair surface that can rotate around the shaft, and the bottom surface of the chair surface is provided with telescopic legs.

Further, the backrest frame includes a pair of two support rods arranged vertically, the upper ends of the two support rods are connected with a cross bar, the middle part of the two support rods is provided with a guide groove, and the two ends of the shaft pass through the guide groove , and is provided with fixing nuts, the height direction of the guide groove is provided with several circular holes with a diameter greater than the width of the guide groove at intervals, the width of the fixing nuts is smaller than the width of the guide groove, the length of the fixing nut is greater than the width of the guide groove, when fixed When the nut moves to the round hole, the nut is rotated so that the nut is stuck on the round hole, thereby fixing the height of the seat surface.

Further, the telescopic foot includes a sleeve and a telescopic rod sleeved in the sleeve, the sleeve is hinged through hinges, the telescopic rod is provided with a spring buckle, and the sleeve is provided with a spring buckle protruding vias.

Further, the telescopic feet are arranged on the front side of the bottom of the chair surface.

Further, the edge of the seat surface is provided with protrusions or grooves that can be spliced with other edge of the seat surface.

The second specific embodiment of the present invention is: a combined multifunctional portable desk and chair, comprising two multifunctional portable desk and chair, characterized in that the backrest frames of the two multifunctional portable desk and chair are connected to each other with their backs facing each other.

Compared with the prior art, the present invention has the following beneficial effects:

(1) Foldable: The chair surface and the supporting feet below are connected in a rotatable or loose-leaf hinged manner. When not in use, just fold it up and put it in the corner, which takes up very little space. Provide great convenience for users' daily life.

(2) Liftable: By turning the nut, the height of the shaft is adjusted to realize the adjustment of the height of the seat surface. And can realize the transformation of chair and table.

(3) Double chair conversion can be realized by connecting two single chairs: according to the needs of the number of people, single chairs and double chairs can be converted, and the functions of tables and chairs can be realized at the same time.

(4) The size and shape of the table can be adjusted: when the structure is transformed into a table form, multiple small tables can be spliced into large tables of different shapes and sizes.

Description of drawings

Fig. 1 is a schematic structural diagram of the backrest frame of the portable table and chair of the present invention.

Fig. 2 is a schematic diagram of the structure of the desk and chair of the present invention.

Fig. 3 is a schematic diagram of the table and chairs transformed into a table according to the present invention.

Fig. 4 is a schematic diagram of the combination structure of the table and chair of the present invention.

Fig. 5 is a schematic diagram showing the folded structure of the table and chair combination in Fig. 4 .

Fig. 6 is a schematic diagram of a splicing structure of a plurality of tables and chairs.

detailed description

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

As shown in Figures 1 to 6, the specific embodiment of the present invention is: a multifunctional portable table and chair, comprising a rectangular back frame 10, said back frame 10 comprising a pair of two support rods 110 vertically arranged, so The upper ends of the two support rods are connected with a cross bar 120, the middle part of the two support rods 110 of the back frame 10 is provided with a guide groove 111, and the back frame 10 is provided with a shaft rod 20 that can move up and down along the height direction of the frame 10, the shaft rod The two ends of 20 pass through the guide groove 111, and the two ends of the shaft 20 are provided with fixing nuts 210, and several round holes 112 with a diameter larger than the width of the guide groove are arranged at intervals in the height direction of the guide groove, and the fixing nuts 210 are in a rectangular shape. The width of the fixed nut 210 is smaller than the width of the guide groove, and the length of the fixed nut is greater than the width of the guide groove. When the fixed nut 210 is rotated to, when the fixed nut 210 moves to the round hole, the rotation nut 210 makes the length direction of the nut clamp on the round hole, thereby fixing The height of the shaft, the shaft 20 is covered with a chair surface 30 that can rotate around the shaft, thus the height of the chair surface is determined.

The bottom surface of the chair surface 30 is provided with a telescopic foot 40, the telescopic foot 40 includes a sleeve 410 and a telescopic rod 420 sleeved in the sleeve 410, the sleeve is hinged by a hinge, and the telescopic rod is provided with a spring buckle, The sleeve is provided with a through hole for the spring buckle to protrude from. Multiple through-holes can be set according to the length. When stretching is required, press the button of the spring buckle to perform telescopic operation of the telescopic rod 420 at the same time. When encountering the through-hole on the casing, the button pops up under the action of the spring

The seat surface 30 is supported by the two support rods 110 of the back frame 10 and the telescopic legs 40 . The telescopic legs are arranged on the front side of the bottom of the chair surface.

After the chair surface 30 is raised, it can form a desktop. The edge of the chair surface 30 is provided with projections or grooves that can be spliced with other chair surface edges, and the chair surfaces 30 of a plurality of tables and chairs can be spliced into different shapes and sizes. Big seat.

The present invention utilizes the liftable chair surface 30 to form a chair or a table, and then utilizes a plurality of retractable or foldable structures so that the table and chair can be folded to occupy a small space, and then utilizes a variety of splicing structures to change the size at will according to needs, which solves the problem of At present, the single function of desks and chairs with limited adjustable capacity has a single defect, and the market prospect is broad.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (4)

1. portable multifunctional tables and chairs, it is characterized in that, including a rectangular-shaped back frame, the axostylus axostyle that can move up and down it is provided with along frame height direction in described back frame, described shaft rod upper sleeve is provided with the seat that can rotate around axostylus axostyle, described seat bottom surface is provided with scalable leg, described back frame includes a pair longitudinally disposed two support bar, described two post uppers connect cross bar, it is provided with gathering sill in the middle part of described two support bars, described axostylus axostyle two ends pass gathering sill, and it is provided with fixing nut, several diameters circular hole more than gathering sill width it is arranged at intervals with in described gathering sill short transverse, the width of described fixing nut is less than gathering sill width, the length of fixing nut is more than gathering sill width, when fixing nut moves to circular hole, rotate nut and make on nut card and circular hole, thus fix seat height.

A kind of portable multifunctional tables and chairs the most according to claim 1, described extending foot includes sleeve pipe and the expansion link being sheathed in sleeve pipe, described sleeve pipe is hinged by loose-leaf, and described expansion link is provided with snak link, and described sleeve pipe is provided with the through hole stretched out for snak link.

A kind of portable multifunctional tables and chairs the most according to claim 2, described scalable leg is arranged at the front side bottom seat.

A kind of portable multifunctional tables and chairs the most according to claim 2, described seat edge is provided with the projection or groove that can splice mutually with other seat edges.