CN206434022U - A kind of height-adjustable desk - Google Patents

Abstract

The utility model relates to a height-adjustable desk, which comprises support feet (1) and a table frame (2) provided on the left and right sides. The support feet (1) include an outer tube (3), fixed on the outer tube (3) the nut fixing rod (4), the inner tube (5) that can be lifted and lowered in the outer tube (3) and the screw rod (6) installed in the nut fixing rod (4), the screw rod (6 ) is sleeved with a bearing (7), the top has a driven bevel gear (8), the bearing (7) is installed on the upper end of the inner tube (5), and the table frame (2) is provided with a driven driven umbrella Gear (8) rotates the lifting drive mechanism. The desk with this structure can realize stepless height adjustment.

Description

height adjustable desk

technical field

The utility model relates to a height-adjustable desk.

Background technique

Most of the existing desks cannot adjust the height of the table board, which is unfavorable for students to maintain correct sitting posture. In recent years, there are also chairs that can adjust the height of the table board, but this type of table generally only has a few steps of adjustment, and cannot achieve stepless adjustment.

Utility model content

The purpose of the utility model is to overcome the above problems and provide a height-adjustable desk that can realize stepless adjustment.

The technical solution for realizing the purpose of this utility model: a height-adjustable desk, including support legs (1) and table frame (2) provided on the left and right sides, the support legs (1) include outer tubes (3), The nut fixing rod (4) fixed in the outer tube (3), the inner tube (5) liftably arranged in the outer tube (3) and the screw rod (6) installed in the nut fixing rod (4), The upper end of the screw (6) is sleeved with a bearing (7), the top has a driven bevel gear (8), the bearing (7) is installed on the upper end of the inner tube (5), and the table frame (2) is set There is a lifting drive mechanism that drives the driven bevel gear (8) to rotate.

The lifting drive mechanism includes a fixed seat (90) arranged on the lower end of the table frame (2) and fixedly sleeved on the inner tube (5), and a rotatable transmission shaft (91) provided on the fixed seat (90). , A rocker arm (92) connected to one end of the drive shaft (91) to drive the drive shaft (91) to rotate, a driving bevel gear (93) mounted on the drive shaft (91) and meshed with the driven bevel gear (8) .

Beneficial effects of the utility model: the driven bevel gear is driven to rotate through the lifting drive mechanism. Since the nut fixing rod is in a fixed state, when the screw rotates, it will produce a lifting movement, so that the height of the desk can be adjusted steplessly, which is beneficial for students to keep correct sitting posture. It is convenient for different ages and different heights to adjust and use different heights.

Description of drawings

Figure 1 is a perspective view of a height-adjustable desk;

Fig. 2 is an exploded view of a height-adjustable desk structure;

Figure 3 is a perspective view of the supporting foot;

Figure 4 is an exploded view of the structure of the supporting foot;

Fig. 5 is an enlarged view of part A of Fig. 4;

Fig. 6 is an exploded view of the structure of the lifting drive mechanism.

detailed description

The specific implementation of the height-adjustable desk of the present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1-6, the height-adjustable desk of this embodiment is mainly composed of supporting feet 1 and table frame 2 provided on the left and right sides. The nut fixing rod 4, the inner tube 5 that can be lifted and lowered in the outer tube 3 and the screw rod 6 installed in the nut fixing rod 4, the upper end of the screw rod 6 is sleeved with a bearing 7, and the top has a driven bevel gear 8, The bearing 7 is installed on the upper end of the inner tube 5, and the table frame 2 is provided with a lifting drive mechanism that drives the driven bevel gear 8 to rotate. The lifting drive mechanism includes a fixed seat 90 fixedly sleeved on the inner tube 5 at the lower end of the table frame 2, a rotatable transmission shaft 91 provided on the fixed seat 90, and a drive transmission shaft 91 connected to one end of the transmission shaft 91. The rotating rocker arm 92 and the driving bevel gear 93 installed on the transmission shaft 91 and meshed with the driven bevel gear 8 . The rotating rocker arm (92) is movable, and the left and right supporting legs (1) have all the above-mentioned mechanisms, and the rotating rocker arm (92) is inserted into the driving bevel gear (93) on one side of the left and right sides and can pass through the drive shaft (91) Drive the driving bevel gear (93) on the other side to rotate. When the rocker arm 92 is rotated, the driving bevel gear 93 will drive the driven bevel gear 8 to rotate. Due to the effect of the bearing 7, the inner tube 5 will not rotate synchronously. 94 is fixed, so the rotation of the screw rod 6 can be converted into lifting motion, thereby realizing the height adjustment of the table frame 2, the table is installed on the table frame, so the height adjustment of the table frame 2 is equivalent to the height adjustment of the table.

Claims (2)

1. A height-adjustable desk, including support legs (1) and table frame (2) provided on the left and right sides, characterized in that: the support legs (1) include an outer tube (3), fixed on The nut fixing rod (4) in the outer tube (3), the inner tube (5) that can be lifted and lowered in the outer tube (3) and the screw rod (6) installed in the nut fixing rod (4), the screw rod The upper end of (6) is sleeved with a bearing (7), the top has a driven bevel gear (8), the bearing (7) is installed on the upper end of the inner tube (5), and the table frame (2) is provided with a driven The lifting drive mechanism for the rotation of the bevel gear (8), the lifting drive mechanism includes a fixed seat (90) and a fixed seat (90) arranged at the lower end of the table frame (2) and fixedly sleeved on the inner tube (5). The rotatable transmission shaft (91) provided on the top, the rocker arm (92) that is connected to one end of the transmission shaft (91) to drive the transmission shaft (91) to rotate, is installed on the transmission shaft (91) and is connected with the driven bevel gear (8) Engage the active bevel gear (93) connected. 2. The height-adjustable desk according to claim 1, characterized in that: the driven bevel gear (8) is sleeved on the top of the screw rod (6) and fixed by a locking screw (94).