Rotating damping buffer

Abstract

A rotary damping buffer, comprising a shell filled with damping oil and a shaft core that is sealed and rotated with the inner cavity of the shell. The shaft core is provided with at least one rotor that is attached to the inner wall of the shell and can flexibly damp the flow of oil. The inner wall of the housing is radially provided with at least one retaining wall that conflicts with the shaft core and blocks the flow of the damping oil. The shaft core is composed of an actuating shaft and a driven shaft that conflict in the axial direction and are connected by an intermittent differential coupling in the rotational direction; When the rotor of the driving shaft and the rotor of the driven shaft are staggered in the non-damping rotation direction, an oil passage is formed, and when the rotor of the driving shaft and the rotor of the driven shaft are aligned and matched in the damping rotation direction, the oil passage is closed; the driven shaft is forced to The upper rotor and the upper rotor of the actuating shaft are staggered in the direction of rotation to pass the oil or align and cut and seal the oil to avoid the damping oil from viscous and make the function of the present invention invalid, and to realize the function of non-damping rotation or damping rotation of the shaft core. To the oil passing unit, the rotation angle of the shaft core of the present invention in the housing can reach 135°.

Description

technical field [0001] The invention relates to a hydraulic rotary buffer, in particular to a rotary damping buffer installed on a toilet cover. Background technique [0002] The current hydraulic rotary buffer has a wide range of applications. In the field of kitchen and bathroom, the buffer is applied to the cover plate of the toilet to prolong the time for the cover plate to flip and fall back, and to avoid the sound of the cover plate impacting the toilet; this type of hydraulic rotary The buffer is such as a rotary damper disclosed in Japan (JP2000120748). The damping mechanism includes a shaft core, a housing, a one-way element, and damping oil. The housing is extended from the inner wall to the center with two retaining walls. In the casing, the outer wall of the shaft core leans against the top of the two retaining walls of the casing, and the shaft core extends outwards integrally with two rotors, the damping oil is filled in the remaining space in the sealed casing...

AI Technical Summary

Problems solved by technology

[0002]The current hydraulic rotary buffer has a wide range of applications. In the field of kitchen and bathroom, the buffer is applied to the cover of the toilet to extend the time when the cover is turned down Time, to avoid the sound of the cover impacting the toilet; this type of hydraulic rotary buffer is a rotary damper disclosed in Japan (JP2000120748). The damping mechanism includes a shaft core, a shell, a one-way element, and damping oil. The inner wall is integrally extended to the center with two retaining walls, the shaft core is installed in the housing, the outer wall of the shaft core is against the top of the two retaining walls of the housing, the shaft core is integrally extended outwards and provided with two rotors, damping oil Fill in the remaining space in the sealed casing, the groove on the shaft core rotor and the inner peripheral wall of the casing are provided with a T-shaped blade (quite a one-way element), and the protrusions 42a and 42b set under the blade are to form the middle of the blade. The oil passage 43 and the constant communication between the oil passage and one of the groove walls, its main purpose is to make the bottom of the groove communicate with the groove wall, so that the other side of the T-shaped blade can be separated from the other side of the groove to open the oil passage or Close the oil circuit; the problem of this kind of rotary damper is: a hydraulic differential check valve is set between the rotating shaft rotor and the inner peripheral wall of the housing, and the one-way element of this check valve is driven by the hydraulic pressure generated by the damping oil. , when the viscosity of the damping oil is high, the sensitivity of the one-way element to hydraulic drive is poor due to the viscosity problem, which may cause the damping function to fail, and the one-way element formed between the rotating shaft rotor and the inner peripheral wall of the housing The valve structure is more complicated, the cost is higher, and the assembly is more troublesome; there is also the setting of the groove on the shaft core rotor, which needs to increase the thickness of the rotor for strength considerations, and also makes the rotation angle of the shaft core rotor limited by the retaining wall in the shell smaller

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