Rotary damper

Abstract

A rotating push damper comprises a rotating shaft and a barrel body. The rotating push damper is characterized in that the rotating shaft is inserted into the barrel body; the rotating shaft is formed by a rotating push section and a key shaft section, wherein a rotating push pin is fixed on the rotating push section in the radial direction, and the rotating push section is sleeved with a piston and a valve plate from bottom to top in sequence; inner threads are arranged in a piston inner hole, and the tips of the two ends of the rotating push pin serve as outer threads and are matched with the inner threads; the piston is arranged in the barrel body and divides the barrel body into an upper seal cavity and a lower seal cavity; an upper hole and a lower hole are formed in the upper end and the lower end of the rotating push section of the rotating shaft respectively, and the upper hole is communicated with the lower hole through a hollow channel; a through hole communicated with the upper seal cavity and the lower seal cavity is also formed in the piston; a radial sliding rail preventing the piston from rotating is arranged between the piston and the barrel body; the shaft shoulder portion of the key shaft section of the rotating shaft is inserted into the barrel body and is sealed and fixed by a seal cover; a shaft shoulder seal ring is arranged on the shaft shoulder portion of the key shaft section, a threaded hole communicated with the upper hole of the rotating push section is formed in the center of the key shaft section, and the threaded hole is sealed by an adjusting screw. Through the adjustment of the flow of damping oil when the damper is opened or reset, the rotating push damper enables opening to be handy, effort to be saved and reset to be stabilized in speed.

Description

technical field [0001] The invention relates to a damper, in particular to a rotary push damper used for hinge shafts when furniture and sanitary ware are opened and closed. Background technique [0002] At present, the parts of some devices rotate around the axis, such as the lids and toilet covers in furniture that need to be opened up and down. Loud noise, resulting in a large impact; the other is a spring buffer, which is easily unusable due to spring corrosion or elastic failure, and has a short service life; Chinese patent 200920198690.0 designed a buffer with blades for the above problems , the device uses a damping device to realize the opening or resetting of the flip cover, and the flow control of damping oil in the damping device is the main cause of resistance when the flip is opened or reset. However, the defect that this device also exists is that when opening or resetting the reversing cover, due to the same flow control of the damping oil, the resistance gen...

AI Technical Summary

Problems solved by technology

[0002] At present, the parts of some devices rotate around the axis, such as the lids and toilet covers in furniture that need to be opened up and down. Loud noise, resulting in a large impact; the other is a spring buffer, which is easily unusable due to spring corrosion or elastic failure, and has a short service life; Chinese patent 200920198690.0 designed a buffer with blades for the above problems , the device uses a damping device to realize the opening or resetting of the flip cover, and the flow control of damping oil in the damping device is the main reason for the resistance when opening or resetting the flip cover

However, the defect that this device also exists is that when opening or resetting the reversing cover, due to the same flow control of the damping oil, the resistance generated when opening or resetting is the same, which makes the opening process more laborious, and there are tube ribs and shaft wear and blades. Abrasion with the cylinder wall greatly reduces the service life

[0003] Therefore, there is a need for a damper that can overcome problems such as relatively laborious opening and large wear in the prior art.

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