Constant force lifting device

A lifting device and constant force technology, which is applied in hoisting devices, supporting machines, mechanical equipment, etc., can solve problems such as the inability to realize constant force lifting of fixed brackets, and achieve the effect of prolonging the service life and expanding the scope of use
CN104565745AActive Publication Date: 2015-04-29LUMI LEGEND
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
LUMI LEGEND
Publication Date
2015-04-29

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Abstract

The invention provides a constant force lifting device. The constant force lifting device comprises a bracket (1), a heavy matter rack (2), a pulley block (3), a traction line (4), a power structure and a power adjusting device; the power structure comprises a tower-shaped wire spool (5) and a contact type flat spiral spring (6); one end of the traction line (4) is fixed to the root part of a line slot (14) in the tower-shaped wire spool (5), and while the other end of the traction line (4) is bypassed a fixed pulley of a fixed pulley block and a movable pulley of a movable pulley block to be fixed to the fixed pulley block; the heavy matter rack (2) is connected with the movable pulley block, and two sides of the heavy matter rack (2) are glidingly connected to two parallel guide rails (7) on the front surface of the bracket (1); the outer end part of the contact type flat spiral spring (6) is fixed to the inner wall of the tower-shaped wire spool (5), and while the inner end part of the contact type flat spiral spring (6) is connected with the power adjusting device. With the adoption of the constant force lifting device, the constant force can be increased and decreased in the whole bracket range, and moreover, the force can be saved.
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Description

technical field

[0001] The invention relates to the technical field of mechanical devices, in particular to a constant force lifting device. Background technique

[0002] With the continuous maturity of display technology, liquid crystal display devices are widely used in military, public security, railway, aviation, finance, securities, shopping malls, large supermarkets and other fields. Most of the current liquid crystal display devices are liquid crystal panels, and are installed on the lifting support frame, so that the up and down position can be adjusted according to the needs during use.

[0003] The Chinese invention patent with the notification number CN102401217A discloses a constant force tension spring lifting device for installing liquid crystal display equipment. It includes a base and a fixed bracket arranged on the base. The fixed bracket is provided with a chute and a lifting slider. The lifting slider is installed on the fixed bracket through the chute, a...

Claims

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