Fence

Abstract

A fence has a connecting member to join an upper fence and a lower fence together. The connecting member consists of an upper fastening bar transversely positioned on the bottom of each post of the up per fence, a lower fastening bar also transversely positioned on the top of each post of the lower fence, and a connecting tube that is cut with an inserting groove in its bottom and plural holes bored on its top respectively for each post of the upper fence to insert. Two positioning segments are formed inside the connecting tube to respectively fix with the upper fastening bar and the lower fastening bar. A connecting pin has its two ends respectively inserted into each post of the upper fence and also each post of the lower fence to keep the two posts joined together. Thus, the fence can be easily assembled and raised with its height without discarding original posts.

1 . A fence formed by intersection of plural posts and rails and provided with a connecting member to keep its upper fence and its lower fence joined together, said connecting member comprising:
 an upper fastening bar transversely positioned on a lower sidewall of each post of said upper fence to keep bottoms of said posts of said upper fence connected;   a lower fastening bar also transversely positioned on an upper sidewall of each post of said lower fence to keep tops of said posts of said upper fence connected;   a connecting tube provided with an inserting opening cut in its bottom, plural holes bored on its top to respectively correspond to each post of said upper fence and to let each said post extend therein, an upper positioning segment and a lower positioning segment formed on an inner wall of said connecting tube to correspond to said upper fastening bar and said lower fastening bar respectively, said upper positioning segment used for engaging with said upper fastening bar fitted with bottoms of said posts  10  of said upper fence, said lower positioning segment used for locking with said lower fastening bar fitted with the tops of said posts  20  of said lower fence; and   a connecting pin having its two ends inserted in each said post of said upper fence and each said post of said lower fence respectively so as to join two said posts together; two vertical notches respectively cut at a top portion and a lower portion of said connecting pin for tails of two screws to move in to keep said posts fixed with said upper fastening bar and said lower fastening bar, a blocking wall located between said notches to be sandwiched by two said screws to keep said posts stably positioned without dropping down.   
   
   
       2 . The fence as claimed in  claim 1 , wherein said connecting tube is provided with a lower annular supporting projection extended inward from an edge of said inserting opening and having a pushing-and-pulling surface, an upper annular blocking projection projected above said lower annular supporting projection by a distance equal to a height of said lower fastening bar, an upper positioning segment  322  located between said upper annular blocking projection and a top of said connecting tube to be equal to a height of said upper fastening bar, a lower positioning segment  323  located between said upper annular blocking projection and said lower supporting projection. 
   
   
       3 . The fence as claimed in  claim 1 , wherein said connecting tube is additionally provided with a top annular blocking projection formed above said upper annular blocking projection to make said upper positioning segment limited between said upper annular blocking projection and said top annular blocking projection. 
   
   
       4 . The fence as claimed in  claim 1 , wherein said upper fastening bar and said lower fastening bar are formed as straight strips and fixed on a sidewall of each said post by a screw. 
   
   
       5 . The fence as claimed in  claim 1 , wherein said lower fastening bar is formed tubular and provided with an opening formed in its bottom to enable itself smoothly move to mount on an upper portion of each said post of said lower fence, a through hole bored in a top of said lower fastening bar to correspond to each said post of said upper fence, said lower fastening bar having its one side fixed with a top sidewall of each said post by said screw and its other side curved to form an elastic hook obliquely extended outward from its free end, said upper positioning segment located between said top of said connecting tube and said upper annular blocking projection for fixing said upper fastening bar, said lower positioning segment located between said upper annular blocking projection and said lower annular supporting projection for fixing said lower fastening bar, said connecting tube provided with annular locking teeth formed on its inner wall to correspondingly lock with said elastic hook of said lower fastening bar.