One-way rotary damper

Abstract

The invention discloses a unidirectionally-rotating damper. The unidirectionally-rotating damper comprises a housing, a rubber insert part, a rotary plastic part, a unidirectional bearing, a rotary shaft, a gland and a gear, wherein the housing is a barrel body with a closed bottom end; the axially-rotating rotary plastic part is arranged in the housing; the unidirectional bearing is arranged at the centre of the rotary plastic part in a coating manner; one end of the rotary shaft penetrates through the centre of the unidirectional bearing and is in transmission connection with the centre of the unidirectional bearing; the other end of the rotary shaft penetrates through the gland and is in transmission connection with the centre of the gear; the rubber insert part is arranged between the rotary plastic part and the housing; an inclined groove arranged slantwise is arranged in the rubber insert part; and a convex bar matched with the inclined groove is arranged on the surface of the corresponding rotary plastic part, so that a contact surface contacting with the rotary plastic part, of the rubber insert part, is an inclined surface. The unidirectionally-rotating damper disclosed by the invention has the advantages of being resistant to collision and obvious in damping effect; the condition of failure in a high-temperature and low-temperature test is avoided; a downward resistance is generated during rotation due to a spiral structure, and according to the principle of acceleration, the higher rotation speed and force are, the higher damping is; and the unidirectionally-rotating damper is more exquisite and smaller in size compared with external products, and the damping effect is reinforced.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to a one-way rotary damper. Background technique [0002] The rotary damper enables the product to obtain smooth mechanical movement, improving the quality and life of the product. The torque of the rotary damper changes according to the change of the rotation speed and temperature environment. It is widely used in the flipping of small clamshells, gift boxes, car window safety handles, ground plugs, etc., which can effectively reduce the noise generated when the product is used, and cooperate with the spring Can make the lid movement more supple. The current common rotary damper has the following defects: [0003] 1) It can't withstand impact and impact, and its service life is short; [0004] 2) Simply rely on the viscosity of the damping oil for damping, the greater the thrust, the weaker the damping effect; [0005] 3) In the high and low temperature test, failure will occur...

AI Technical Summary

Problems solved by technology

[0003] 1) It can't withstand impact and impact, and its service life is short;

[0004] 2) Simply rely on the viscosity of the damping oil for damping, the greater the thrust, the weaker the damping effect;

[0005] 3) In the high and low temperature test, failure will occur and the damping will be unstable

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