CN2242023Y

CN2242023Y - School desk and chair with variable height

Info

Publication number: CN2242023Y
Application number: CN 95215511
Authority: CN
Inventors: 魏永林
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-16
Filing date: 1995-06-16
Publication date: 1996-12-11
Anticipated expiration: 2005-06-16

Abstract

The utility model relates to a school desk with variable height and a chair with variable height, comprising a school desk and a chair which are connected in definite pitch. A desk leg (3) and a chair leg (6) form inner tubes (7) which can oppositely move, supporting outer tubes (8) and a screwed sleeves which can control the desk leg and the chair leg to be lifted. When the height is adjusted, as long as the screwed sleeves are loosened, the inner tubes are pulled upward or pressed downward in suitable height, and the taper pipe screwed sleeves (9) are revolved tightly to clamp the inner tubes tightly, so the height of the school desk and the chair is adjusted. The whole operating process only needs one person which can easily finish the whole operating process.

Description

The adjustment height desk and chair

The utility model relates to a kind of height-adjustable desk and chair, belongs to furniture.

Existing desk and chair generally is highly fixing, and child begins from learning to write to growing up, and with same set of level altitude desk and chair, obviously is inappropriate.But to count the desk and chair of cover differing heights fully, also not meet national conditions.Many for this reason people are moving angry muscle on this problem, desk and chair is made liftable regulates, but the structure that this type of desk and chair has is too complicated, is not easy to promote the use, as CN2179043Y; The structure that has connects and has certain interval, can produce in the use and rock, and also needs specific purpose tool could regulate height, as CN2179042Y.

Task of the present utility model is to overcome the deficiency of existing desk and chair, provides that a kind of connections is reliable, adjusting desk and chair highly very easily.

Above-mentioned task is achieved in that it comprises desktop, table bucket and the table leg of the connection of band constant slope, the chair leg of seat, the chair back, table leg, chair leg structure are identical, thread bush by the control lifting of pipe, supporting outer tube in relatively-movable is formed, in the joint knot shape fixedly connected with table bucket, seat respectively in the pipe upper end, supporting outer tube upper end is the Taper Pipe external screw thread, and four above cannelures are arranged in the threaded portion, revolves the thread bush of identical tapering on it.

The desk and chair of this adjustment height is skillfully constructed, and cost simple in structure is low, and connection is reliable, and a people just can operate and regulate height, is that the student learns and the office of being grown up comparatively desirable and economical and practical desk and chair.

Below in conjunction with accompanying drawing an embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of adjustment height desk and chair

Fig. 2 is the structure enlarged drawing of table, chair leg

The adjustment height desk and chair, comprise the desktop (1) that the band constant slope connects, table bucket (2) and table leg (3), seat (4), the chair back (5) and chair leg (6), table leg, chair leg structure is identical, by pipe (7) in relatively-movable, the thread bush (9) of supporting outer tube (8) and control lifting is formed, interior pipe (7) is joint knot shape, the upper end respectively with table bucket (2), seat (4) is screwed connection, supporting outer tube (8) upper end is a taper pipe thread, non-slip for guaranteeing locking, when processing outer tube taper thread, the internal orifice of reining in out when utilizing pipe cutter to cut off pipe, be stuck in interior pipe (7) joint knot shape groove, taper pipe thread portion has four cannelures, when unscrewing identical taper thread cover (9), outer tube (8) upper end loses external force and outwards struts, can upwards pull out on demand this moment or arrive suitably highly, screw in taper pipe thread cover (9) clamping and manage, just mix up the height of desk and chair to pressing down interior pipe (7).

Claims

1. the desk and chair of an adjustment height, comprise desktop (1), table bucket (2) and table leg (3) that the band constant slope connects, seat (4), the chair back (5) and chair leg (6), it is characterized in that: table leg (3), chair leg (6) are made up of the thread bush (9) of pipe (7), supporting outer tube (8) and control lifting in relatively-movable, in the joint knot shape fixedly connected with table bucket (2), seat (4) respectively in pipe (7) upper end, supporting outer tube (8) upper end is the Taper Pipe external screw thread, in the threaded portion four above cannelures are arranged, revolve the thread bush (9) of identical tapering on it.