Locking mechanism and foldable fence

Abstract

A locking mechanism and a foldable fence are provided. When the locking column is placed in the locked position, the elastic member is in a naturally extended state to enable the locking column to protrude out of the first pressing hole from the first cavity, the first covering end covers the first pressing hole, and the fixing member remains fixed relative to the first cavity. When the locking column is placed in the unlocked position, the first covering end is separated from the first pressing hole, the elastic member is compressed by force, the locking column retracts from the first pressing hole into the first cavity, and the fixing member can be moved out of the first cavity. In the foldable fence, the first fixing rod is the fixing member, and the first movable rod is the movable member. The entire fence is easily folded and convenient for use.

What is claimed is: 
     
         1 . A locking mechanism, comprising:
 a shell, wherein the shell comprises a first cavity and at least one second cavity, the first cavity is not communicated with the second cavity, the first cavity is used to place a fixing member, the second cavity is used to place a movable member, and the shell is provided with a first pressing hole on an inner side wall where the first cavity is located;   a locking cover, wherein the locking cover is arranged on an outer side wall of the shell, the locking cover has a first connecting end and a first covering end, the first connecting end is hinged with the shell, and the first covering end is used to cover the first pressing hole;   a locking column, wherein the locking column is arranged on the fixing member, and an elastic member is further arranged between the locking column and the fixing member;   wherein the locking column is configured to be placed in a locked position and an unlocked position, when the locking column is placed in the locked position, the elastic member is in a naturally extended state to enable the locking column to protrude out of the first pressing hole from the first cavity, and the first covering end covers the first pressing hole; when the locking column is placed in the unlocked position, the first covering end is separated from the first pressing hole, the elastic member is compressed by force, and the locking column retracts from the first pressing hole into the first cavity.   
     
     
         2 . The locking mechanism according to  claim 1 , wherein the shell is further provided with a first protrusion, the first protrusion is arranged at a hinge between the first connecting end and the shell, and the first protrusion is arranged on a rotation path of the first connecting end;
 the first connecting end is provided with a first groove of a first predetermined length, a groove body of the first groove extends corresponding to the rotation path of the first connecting end, and the first protrusion is adapted to the first groove.   
     
     
         3 . The locking mechanism according to  claim 2 , further comprising:
 a torsion spring, wherein the torsion spring is sleeved on a hinge axis between the first connecting end and the shell, one end of the torsion spring is connected to the shell, and the other end of the torsion spring is connected to the locking cover.   
     
     
         4 . The locking mechanism according to  claim 1 , further comprising:
 a first pressing plate, wherein one end of the first pressing plate is connected to an edge of the first pressing hole, the other end of the first pressing plate extends toward the first pressing hole, and a projection of the locking column in a pressing direction is placed in an area covered by the first pressing plate.   
     
     
         5 . The locking mechanism according to  claim 4 , wherein an outer surface of the first pressing plate is provided with anti-slip protrusions distributed in a predetermined manner. 
     
     
         6 . The locking mechanism according to  claim 1 , wherein the shell further comprises:
 a first opening, wherein the first opening is arranged toward a first direction, and the first opening is communicated with the second cavity;   a second opening, wherein the second opening is arranged toward a second direction, there is a certain angle between the first direction and the second direction, and the first opening and the second opening are communicated and arranged adjacent to each other.   
     
     
         7 . The locking mechanism according to  claim 6 , wherein the shell further comprises:
 a third opening, wherein the third opening is arranged toward a third direction, and the third opening is communicated with the first cavity;   a fourth opening, wherein the fourth opening is arranged opposite to the third opening, and the fourth opening is communicated with the first cavity.   
     
     
         8 . The locking mechanism according to  claim 7 , wherein a number of the second cavity is multiple, a plurality of second cavities are distributed along a circumferential direction of the first cavity, and two adjacent second cavities are arranged at a predetermined angle. 
     
     
         9 . The locking mechanism according to  claim 8 , wherein the predetermined angle is 90 degrees or 180 degrees. 
     
     
         10 . A foldable fence, comprising:
 a locking mechanism, wherein the locking mechanism is the locking mechanism according to  claim 1 ;   a first fixing rod, wherein the first fixing rod is the fixing member in the locking mechanism, the first fixing rod is placed in the first cavity, the first fixing rod is configured to move relative to the first cavity, and the locking column is connected to the first fixing rod through the elastic member;   a first movable rod, wherein the first movable rod is the movable member in the locking mechanism, one first movable rod is arranged in one second cavity, an end of the first movable rod is hinged with the shell on a side wall where the second cavity is located, and the first movable rod is configured to rotate relative to the second cavity.