Adjustable vibration reduction device

Abstract

The invention provides an adjustable vibration reduction device and belongs to the field of vibration reduction equipment. The vibration reduction device comprises a cover plate, a bottom plate, a vibration reduction part arranged between the cover plate and the bottom plate, and a seat connected with the cover plate; the vibration reduction part comprises a pair of shear type connection rod mechanisms arranged symmetrically; vibration reduction springs are arranged between connection rods of the shear type connection rod mechanisms, reinforcing steel plates are arranged on the two sides of the connection rods, and the surfaces of the connection rods are coated with oxidation-resistant coatings; an adjusting device capable of pushing the shear type connection rod mechanisms to rotate around middle hinge shafts of the shear type connection rod mechanisms so as to adjust the height between the cover plate and the bottom plate is further arranged on the lower surface of the cover plate; apropulsion device is arranged in the position, in the middle of a connection shaft at one end of the corresponding connection rods, of the bottom plate, and the other end of the propulsion device isconnected with a spring extension-retraction device; and an electronic pulse device is arranged on the backrest part of the seat. Through the structure and the external source function, external source vibration can be relieved effectively through the vibration reduction device, the comfort degree is improved, and meanwhile the massage effect is achieved.

Description

technical field [0001] The invention relates to the field of vibration reduction equipment, in particular to an adjustable vibration reduction device. Background technique [0002] The industry abbreviates noise, vibration, and comfort as NVH (Noise, Vibration, Harshness), collectively referred to as NVH issues. With the rapid development of the automotive industry, users have higher and higher requirements for automotive NVH performance. Major automakers have invested a lot of money in researching and improving vehicle NVH performance to establish their brand image. At present, in order to improve the noise and vibration performance of automobiles in the domestic and foreign automobile industries, major companies have successively developed emerging NVH technology products such as semi-active suspensions, active suspensions, air springs, hydraulic mounts, and variable magnetic flow hydraulic mounts. It also introduces hydraulic and electronic technology into the NVH field,...

AI Technical Summary

Problems solved by technology

At present, in order to improve the noise and vibration performance of automobiles in the domestic and foreign automobile industries, major companies have successively developed emerging NVH technology products such as semi-active suspensions, active suspensions, air springs, hydraulic mounts, and variable magnetic flow hydraulic mounts. It also introduces hydraulic and electronic technology into the NVH field, overcoming the defect that traditional mechanisms cannot adapt to improve vehicle performance

As the final transmission object of the user, the seat has a good or bad vibration isolation performance, which directly affects the comfort of the occupants, thereby affecting the sales of automobiles.

Traditional seats generally use springs and (or) foam plastics for vibration damping, but this damping material itself has some shortcomings: the foam plastic block has poor air permeability and is easy to deform, and it makes people feel irritable and uncomfortable in hot summer, and the general driver's seat The spring damping used in the chair is small, the cushioning effect is poor, and the rebound force is large. When the car is driving on an uneven road, the up and down bumps are severe, which is easy to cause fatigue and motion sickness.

[0003] The prior art, such as the Chinese invention authorized patent document, authorized announcement number CN 101774358 B, this invention discloses an adjustable shock-absorbing seat, the shock-absorbing device of the seat includes a pair of adjustable scissor linkages , There is also a gas spring between the bottom plate and the panel, a propulsion device is set on the bottom plate, and a spring telescopic device is provided at the other end of the propulsion device. The shock absorbing device can effectively adjust the height of the seat, and the spring telescopic device can reduce vibration. However, its load-bearing and vibration force are all based on a pair of scissor linkages. With the change of the elastic limit of the spring and the influence of the oxidation, corrosion, deformation of the connecting rod, the vibration damping effect will become lower and lower, thus in disguise. increased its cost

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