CN2556998Y - Lifting/lowering desk for writing - Google Patents

Abstract

The utility model discloses a lifting writing desk, which has double-casing structured legs with an external casing and an inner pipe. The walls of the external casing and the inner pipe are respectively provided with four to six corresponding grooves in which positioning rods are inlaid. The positioning rods are designed with four-frame linkage structure, the frames are provided with handles, and a reset spring is connected between the positioning rods and the desk legs. Pulling the handle can cause the positioning rod to separate from the grooves, and expand or contract the external casing and the inner pipe of the legs, and then the positioning rod can be pulled to the groove to position the desk height to complete the height adjustment of the desk. The desk legs are of double casing structure in which the inner and the external casings are vertically telescopic, and the height of the legs can be adjusted according to the height of students. The utility model is in accordance with the human body structure and beneficial for the health of the students.

Description

The liftable desk of writing

Technical field:

The utility model relates to existing improvement of writing desk, and especially a kind of liftable desk belongs to the office furniture technical field.

Background technology:

At present, the desk that writes that the student uses is generally level altitude, can not up-down adjustment, and along with student's physical growth, the height of desk can't adapt to student's height, has seriously influenced the normal growth of increasing of student.

Summary of the invention:

The utility model discloses a kind of liftable desk of writing, and has the function that can regulate table height, makes the height of desk be suitable for student's physical growth needs.

Technical solution of the present utility model is as follows: constitute the liftable desk of writing by desktop, table leg, wherein, table leg is inside and outside double-layer sleeve structure, can stretch up and down, on the tube wall of inside and outside sleeve pipe, be provided with corresponding series of recesses, backstay is embedded in the groove, with inside and outside sleeve pipe location.

Double-layer sleeve structure of the present utility model also can be used for the lifting leg structure of seat.

Good effect of the present utility model is: the inside and outside double-layer sleeve structure of table leg for stretching up and down, can adjust table height with student's height, and meet organization of human body, it is healthy to help the student.

Description of drawings:

Fig. 1 is the utility model structure principle chart.

1～desktop, 2～handle, 3～spring, 4～backstay, 5～outer tube, 6～interior pipe, 7～groove.

The specific embodiment:

According to shown in Figure 1, desktop 1 connects and composes with table leg and writes desk, wherein, the table leg of forming double-layer sleeve structure by outer tube 5 and interior pipe 6, on the tube wall of outer tube 5 and interior pipe 6, be respectively equipped with corresponding 4～6 grooves 7, backstay 4 is embedded in the groove 7, backstay 4 is designed to four frame linkage structures, the edge device has handle 2, back-moving spring 3 is connected between backstay 4 and the table leg, can make backstay 4 break away from groove 7, the outer tube 5 of telescopic table legs and interior pipe 6 by pulling handle 2, again backstay 4 is pulled in the groove 7 table height is located, finish the height of writing desk and regulate.

Claims (1)

1, a kind of liftable desk of writing comprises that desktop, table leg constitute, and it is characterized in that: table leg is inside and outside double-layer sleeve structure, can stretch up and down, be provided with corresponding series of recesses on the tube wall of inside and outside sleeve pipe, backstay is embedded in the groove, with inside and outside sleeve pipe location.