Office drawer slide rail for controlling speed by using magnetorheological fluid

Abstract

The invention relates to the technical field of office home furnishing, and discloses an office drawer slide rail for controlling speed by using a magnetorheological fluid. The office drawer slide rail comprises a sliding rail body, the outer side wall of the sliding rail body is rotatably connected with a pulley, the inner side wall of the pulley is fixedly connected with an inner wheel, and a first electromagnet is fixedly connected between the inner wheel and the pulley, and an inner rotating shaft is rotatably connected to the central position of the interior of the inner wheel. Current generated on the coils on the two sides of the pulley is increased accordingly, the magnetic field generated on the first electromagnet connected with the coils is increased accordingly, the magnetorheological fluid becomes viscous according to the increase of the magnetic field, the shear stress of the damping plate on the inner rotating shaft for overcoming the is increased accordingly, thereforethe rotating speed of the inner rotating shaft is reduced, and the rotating speed of the corresponding pulley is also reduced, so that the sliding speed of a sliding plate in contact with the pulley is also reduced, the purpose of reducing the impact force is achieved, and the drawer is effectively protected from being damaged by excessive impact force.

Description

technical field [0001] The invention relates to the technical field of office and home furnishing, in particular to a slide rail for office drawers controlled by magnetorheological fluid. Background technique [0002] There are many kinds of existing office furniture, and the most common ones are writing desks and cabinets. Drawers are more commonly used in writing desks and cabinets. Common drawers need to be drawn and pulled by users themselves. To realize the storage and retrieval of items, wherein, the drawers are usually fixed on the table body with slide rails and pulleys, so that they can slide on the table body. [0003] As a new material, magnetorheological fluid can change its shape according to the change of the magnetic field. In the prior art, the drawer is usually directly fixed on the table body with slide rails and pulleys. When the drawer is pulled out or put in When using too much force on the table body, the drawer will be quickly pulled out or retracted ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a slide rail for office drawers controlled by magnetorheological fluid, which can automatically control the resistance of the pulley according to the moving speed of the drawer, so as to achieve the purpose of limiting the speed of the drawer, thereby It avoids the advantage of the drawer being damaged due to excessive speed, and solves the problem that if the force used is too large, the drawer will be pulled out or retracted into the table body quickly. The impact force causes the drawer to slide out of the table body directly or directly collides with the table body fiercely, resulting in damage to the drawer and table body

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