CN2311979Y

CN2311979Y - Multi-function and lifting/lowering blackboard

Info

Publication number: CN2311979Y
Application number: CN 97237250
Authority: CN
Inventors: 杨科高
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-20
Filing date: 1997-06-20
Publication date: 1999-03-31
Anticipated expiration: 2007-06-20

Abstract

The utility model discloses a multi-function and lifting/lowering blackboard. The upper end of an ordinary blackboard is provided with a ring sleeve, the ring sleeve is sheathed on a column, the column is also sheathed with a rocking arm and is provided with a motor, the motor is connected with a lifting/lowering screw rod, the lifting/lowering screw rod is connected with a screw nut fixed on the rocking arm, the rocking arm is provided with a sliding block and an advancing and retreating screw rod, and the lower end of the blackboard is put on the sliding block. The utility model has the advantages of arbitrary blackboard lifting/lowering adjustment and arbitrary angle adjustment, simple structure, easy fabrication, convenient use, easy maintenance, etc. in addition, to the function of ordinary blackboards.

Description

The multifunctional lifting blackboard

The utility model relates to a kind of blackboard, belongs to the teaching aid field.

At present, blackboard of the prior art is for fixed mostly, and it can not regulate the height of blackboard and the angle that blackboard is put as required arbitrarily, and is therefore very inconvenient in use.

The purpose of this utility model is: provide a kind of and can regulate the blackboard height, can regulate the multifunctional lifting blackboard that blackboard is put angle again.

The utility model is to constitute like this: it is equipped with ring set (2) in the upper end of normal blackboard (1), ring set (2) is enclosed within on the column (3), on column (3), also be with rocking arm (4), be fixed with motor (5) in the lower end of column (3), opening of motor switch K control motor, stop, plug C is the attaching plug of motor (5), on motor (5), be connected with elevating screw (6), elevating screw (6) is connected with nut (7) on being fixed on rocking arm (4), slide block (8) and advance and retreat screw mandrel (9) are housed on rocking arm (4), advance and retreat screw mandrels (9) are connected with nut (10) on being fixed on slide block (8), on elevating screw (6), also be fixed with bevel gear (11), bevel gear (12) is contained in column (1) and upward and with bevel gear (11) meshes, and crank handle (13) is connected with bevel gear (12), and the lower end of blackboard (1) is placed on the slide block (8).

The utility model is compared with blackboard of the prior art, and except the function with general blackboard, it also has can regulate the advantage of blackboard lifting and angle arbitrarily, and have simple in structure, make easy, easy to use, for ease of maintenaince wait advantage.During use, earlier the two ends of column (3) are fixed on the wall, plug C is connected with the mains again, Push switch K just can make blackboard (1) arrive suitable position then, if there is not electricity, and can be by rotating crank handle (13) with regard to liftable blackboard (1); When needs are regulated the angle of blackboards (1), only need to rotate the angle that the handle of advance and retreat screw mandrels (9) just can be regulated blackboard (1) arbitrarily.

Accompanying drawing 1 is a structural representation of the present utility model.

Embodiment of the present utility model a: ring set (2) is installed in the upper end of normal blackboard (1), ring set (2) is enclosed within on the column (3), on column (3), overlap upper rocker arm (4) again, fix motor (5) in the lower end of column (3), motor switch K is connected opening of control motor in the circuit of motor, stop, plug C is the attaching plug of motor (5), in motor (5) rotating shaft, fix elevating screw (6), elevating screw (6) is connected with nut (7) on being fixed on rocking arm (4), on rocking arm (4), load onto slide block (8) and advance and retreat screw mandrel (9), and advance and retreat screw mandrels (9) are connected with nut (10) on being fixed on slide block (8), on elevating screw (6), fix a bevel gear (11) again, bevel gear (12) is contained in column (1) goes up and makes itself and bevel gear (11) to mesh, crank handle (13) is connected with bevel gear (12) and can Rotatable umbrella gear (12), the lower end of blackboard (1) is placed on slide block (8) goes up.

Claims

1, a kind of multifunctional lifting blackboard, it comprises blackboard (1), motor (5), motor switch K, attaching plug C, it is characterized in that: ring set (2) is arranged in the upper end of blackboard (1), ring set (2) is enclosed within on the column (3), on column (3), also be with rocking arm (4), be fixed with motor (5) in the lower end of column (3), on motor (5), be connected with elevating screw (6), elevating screw (6) is connected with nut (7) on being fixed on rocking arm (4), slide block (8) and advance and retreat screw mandrel (9) are housed on rocking arm (4), advance and retreat screw mandrels (9) are connected with nut (10) on being fixed on slide block (8), on elevating screw (6), also be fixed with bevel gear (11), bevel gear (12) is contained in column (1) and upward and with bevel gear (11) meshes, and crank handle (13) is connected with bevel gear (12), and the lower end of blackboard (1) is placed on the slide block (8).