A fence system includes posts, links and fasteners. Once assembled, the fasteners extend through holes of the posts, and each of the fasteners can couple a first end of a first one of the links to a second end of a second one of the links to secure the links to the respective post. Each of the fasteners can apply a clamping force that urges the second end of the second one of the links towards the respective post to bear against the first end of the first one of the links.

A foldable structure for a sunshade, a shutter or a fence, comprising at least one guiding member (10); a plurality of displaceable elements (20) slidably connected to said guiding member (10) forming a row (2), a stroke end (54), a first actuator (31) connected to first displaceable element (20) of the row (2), foldable spacers (40) connecting each pair of successive displaceable elements (20), and a spacer guide (50) including successive first portion (51), second portion (52), third portion (53), wherein the second portion (52) urge the foldable spacers (40) from a first folding position to a second folding position; and wherein a second actuator (32) produces a relative movement between the second portion (52) of the spacer guide (50) and the stroke end (54) to adjust the longitude of the third portion (53), said second actuator (32) being in coordination with the first actuator (31).

A fence system includes posts, links and fasteners. Once assembled, the fasteners extend through holes of the posts, and each of the fasteners can couple a first end of a first one of the links to a second end of a second one of the links to secure the links to the respective post. Each of the fasteners can apply a clamping force that urges the second end of the second one of the links towards the respective post to bear against the first end of the first one of the links.

A fence structure has a plane extended from the top of a connecting board to a vertical pipe and an embedded opening formed at corresponding position for embedding the vertical pipe. A protective flange is protruded from each of two corresponding sides of the embedded opening, attached onto a horizontal pipe for passing the vertical pipe to an inner wall of a hole, and installed at a position in the same displacing direction when the angle of the vertical pipe is adjusted. The horizontal pipe is formed by a main body with an opening on the longitudinal side and a cover disposed at the opening position and coupled to the main body. While adjusting the angle of the fence, the vertical and horizontal pipes are prevented from hitting each other or scratching their outer surfaces. In addition, the time and labor of assembling the fence can be reduced.

A collapsible barrier includes a substantially rectangular sheet. The substantially rectangular sheet includes a first post and a second post pivotably connected with hinges. Feet with apertures configured to receive fasteners perpendicularly extend from the bottom of the first post and the second post. A first-bracing member and a second-bracing member respectively reinforce the first post and the second post in a perpendicularly oriented position with respect to each other. A metallic webbing integrated with the substantially rectangular sheet to provide suitable strength and load bearing capabilities. The substantially rectangular sheet includes a perpendicular lip along the vertical edges. The posts are configured to pivot the feet to align parallel with the substantially rectangular sheet. When the feet are aligned parallel with the substantially rectangular sheet the lip of the substantially rectangular sheet allows multiple collapsible barriers to be stacked. The collapsible barrier is useful for providing a portable barrier.

A fence structure has a plane extended from the top of a connecting board to a vertical pipe and an embedded opening formed at corresponding position for embedding the vertical pipe. A protective flange is protruded from each of two corresponding sides of the embedded opening, attached onto a horizontal pipe for passing the vertical pipe to an inner wall of a hole, and installed at a position in the same displacing direction when the angle of the vertical pipe is adjusted. The horizontal pipe is formed by a main body with an opening on the longitudinal side and a cover disposed at the opening position and coupled to the main body. While adjusting the angle of the fence, the vertical and horizontal pipes are prevented from hitting each other or scratching their outer surfaces. In addition, the time and labor of assembling the fence can be reduced.

A foldable structure for a sunshade, a shutter or a fence, comprising at least one guiding member (10); a plurality of displaceable elements (20) slidably connected to said guiding member (10) forming a row (2), a stroke end (54), a first actuator (31) connected to fist displaceable element (20) of the row (2), foldable spacers (40) connecting each pair of successive displaceable elements (20), and a spacer guide (50) including successive first portion (51), second portion (52), third portion (53), wherein the second portion (52) urge the foldable spacers (40) from a first folding position to a second folding position; and wherein a second actuator (32) produces a relative movement between the second portion (52) of the spacer guide (50) and the stroke end (54) to adjust the longitude of the third portion (53), said second actuator (32) being in coordination with the first actuator (31).