Damper device and trash can equipped with the same

Abstract

The present disclosure provides a damper device, comprising: a compression member having a first opening and an expandable casing; a fixed member having a second opening corresponding to the first opening, wherein the fixed member is connected to the compression member, and the second opening and the first opening together form a passage; and a movable member positioned at the passage formed by the first opening and the second opening, wherein when the compression member is being released, the movable member makes the passage open for air to fill in the expandable casing, and when the compression member is being compressed, the movable member makes the passage close to restrict the amount of air discharging from the expandable casing. The present disclosure further provides a trash can equipped with a damper device.

1 . A damper device, comprising:
 a compression member having a first opening and an expandable casing;   a fixed member having a second opening corresponding to the first opening, the fixed member being connected to the compression member, the second opening and the first opening together forming a passage; and   a movable member positioned at the passage formed by the first opening and the second opening, wherein when the compression member is being released, the movable member makes the passage open for air to enter and fill up the expandable casing, and when the compression member is being compressed, the movable member makes the passage close to restrict the amount of the air being discharged from the expandable casing.   
     
     
         2 . The damper device according to  claim 1 , wherein the first opening is provided with an outer thread, and the fixed member is provided with an inner thread corresponding to the outer thread. 
     
     
         3 . The damper device according to  claim 2 , wherein the movable member is a sphere. 
     
     
         4 . The damper device according to  claim 3 , wherein the first opening is provided with a plurality of protrusions, and the movable member is positioned on the plurality of protrusions of the first opening. 
     
     
         5 . The damper device according to  claim 3 , wherein the second opening is provided with a plurality of protrusions, and the movable member is positioned on the plurality of protrusions of the second opening. 
     
     
         6 . The damper device according to  claim 1 , wherein the movable member comprises a movable piece having a plurality of through-holes, the diameter of the movable piece being larger than the diameter of the second opening and smaller than the diameter of the first opening. 
     
     
         7 . A trash can equipped with a damper device, comprising:
 a stand;   a container body that fits over the stand and has a liner inside;   a lid that fits over the container body;   a step unit including a foot pedal and a linkage mechanism having one end connected to the foot pedal and the other end connected to the lid;   a hinge portion connected to the container body and pivotally connected to the lid; and   a damper device confined to a position on the stand by a confining member, the linkage mechanism securing a contact member to make the contact member positioned on the damper device, wherein the damper device comprises:
 a compression member having a first opening and an expandable casing; 
 a fixed member having a second opening corresponding to the first opening, wherein the fixed member is connected to the compression member, and the second opening and the first opening together form a passage; and 
 a movable member positioned at the passage formed by the first opening and the second opening, 
 wherein when foot pedal is stepped on so that the compression member is being released, the movable member makes the passage open for air to enter and fill up the expandable casing, and when the foot pedal is released so that the compression member is being compressed, the movable member makes the passage close to restrict the amount of the air being discharged from the expandable casing. 
   
     
     
         8 . The trash can equipped with a damper device according to  claim 7 , wherein the first opening is provided with an outer thread, and the fixed member is provided with an inner thread corresponding to the outer thread. 
     
     
         9 . The trash can equipped with a damper device according to  claim 8 , wherein the movable member is a sphere. 
     
     
         10 . The trash can equipped with a damper device according to  claim 9 , wherein the first opening is provided with a plurality of protrusions, and the movable member is positioned on the plurality of protrusions of the first opening. 
     
     
         11 . The trash can equipped with a damper device according to  claim 9 , wherein the second opening is provided with a plurality of protrusions, and the movable member is positioned on the plurality of protrusions of the second opening. 
     
     
         12 . The trash can equipped with a damper device according to  claim 7 , wherein the movable member comprises a movable piece having a plurality of through-holes, the diameter of the movable piece being larger than the diameter of the second opening and smaller than the diameter of the first opening.