Abstract: The present invention is to provide a fixing structure of a straight bar and a cross bar of a pet guardrail, mainly, a fixing hole is respectively configured on a top end and a bottom end of the straight bar, the top end and bottom end of the straight bar are respectively embedded into an embedding slot configured on the cross bar, then a punch head of a power punch bar is reaching into from an opening slot configured on one side of the cross bar to apply a force and punch the sharing slot wall between the embedding slot and the opening slot and corresponding to the fixing hole, thereby enabling a punched position of the sharing slot wall to be deformed and protrude toward the fixing hole to form a locking pellet, so the locking pellet is embedded into the fixing holes to combine the straight bara and the cross bars, thereby enabling the combination and fixation between the straight bar and the cross bar of the pet guardrail to be effective.

Abstract: A vertical post structure of a fence comprises an axial slot on at least one side of a post, and an axial notch at an end of the slot facing the post. An inner wall of the slot and the two sides near to the notch extend obliquely to form a clamping board, wherein a tail end of the clamping board has a buckle part. Each buckle part is positioned within the projection range of the notch, and a plate is fixed with a stop end of the post and corresponds to the slot. The buckle parts directly clip and buckle the end parts of the cross bars to fix them to the post, or the post can be assembled with the cross bars fixed inside the slot and to a base, and the plate prevents separation of the cross bars from the post.

Abstract: An assembling method of a hidden interconnection arrangement of fence or railing is provided, wherein a downward force applied to a top wall of a lateral beam is able to press a bottom guider edge of a lower engaging arm downwards against a top edge of an engaging rail that generates a reaction force to enlarge a bottom opening of the lateral beam to allow the engaging rail to be engaged in an engaging recess and locked between an upper engaging arm and the lower engaging arm of the lateral beam while fasteners that fastened the engaging rails to a plurality of upright posts are hidden and concealed by the lateral beams and the pressing walls of the lateral beams press against flat surfaces of the upright posts respectively.

Abstract: An assembling method of a hidden interconnection arrangement of fence or railing is provided, wherein a downward force applied to a top wall of a lateral beam is able to press a bottom guider edge of a lower engaging arm downwards against a top edge of an engaging rail that generates a reaction force to enlarge a bottom opening of the lateral beam to allow the engaging rail to be engaged in an engaging recess and locked between an upper engaging arm and the lower engaging arm of the lateral beam while fasteners that fastened the engaging rails to a plurality of upright posts are hidden and concealed by the lateral beams and the pressing walls of the lateral beams press against flat surfaces of the upright posts respectively.

Abstract: A positioning device for fence supplemented with pet guardrail comprises: an upper embedding slot and a lower embedding slot having face-to-face openings and extending axially being respectively formed on an opposite outside of the upper crossbar and the lower crossbar of the pet guardrail, for embedding the upper and lower ends of the straight rod and fixing the straight rod via the positioning peg from the inner side of the upper crossbar and the lower crossbar to avoid the exposure of the positioning peg and omitting the installation of the front cover plate on the front side of the upper crossbar and the lower crossbar, and moreover, the side cover installed and covered on the left and right ends of the upper crossbar and the side cover facing the end of side pole of the existing fence being an circular arc surface, thereby meeting the installation inclination angle of the existing fence. The configuration of the circular arc surface enables the side cover to maintain attached with the side pole.

Abstract: A combination structure of a straight bar and a cross bar of a guardrail is to comprise an embedding opening configured at a position where the cross bar provided for the straight bar to be inserted. A pair of buckle plates is configured inside the cross bar and on the two opposite sides of two sides of the embedding opening, the tail end of the buckle plate has a buckle part, and the buckle part is located within the bore diameter projection range of the embedding opening. The two opposite outer walls on the end part of the straight bar corresponding to the two buckle parts are configured with a horizontal snapping slot, and when the straight bar is inserted into the cross bar, the buckle part is embedded into the snapping slot. At the interior of the cross bar, a pair of stopping plates is extending from the inner wall of the cross bar away from the end of the embedding opening and at an adjacent side of the buckle part.

Abstract: A vertical post structure of a fence comprises an axial slot on at least one side of a post, and an axial notch at an end of the slot facing the post. An inner wall of the slot and the two sides near to the notch extend obliquely to form a clamping board, wherein a tail end of the clamping board has a buckle part. Each buckle part is positioned within the projection range of the notch, and a plate is fixed with a stop end of the post and corresponds to the slot. The buckle parts directly clip and buckle the end parts of the cross bars to fix them to the post, or the post can be assembled with the cross bars fixed inside the slot and to a base, and the plate prevents separation of the cross bars from the post.

Abstract: A combination structure of a straight bar and a cross bar of a guardrail is to comprise an embedding opening configured at a position where the cross bar provided for the straight bar to be inserted. The two corresponding inner walls inside the cross bar extend two the two sides of the embedding opening to form a buckle plate. The tail end of the buckle plate has a buckle part, and a distal end of the buckle part is located within a bore diameter projection range of the embedding opening. The extending direction of the buckle part is away from the embedding opening. Based on the above configuration, when the straight bar and the cross bar of the guardrail are assembled, the clamping force of two corresponding buckle plates enable the two corresponding buckle parts to strongly buckle the corresponding outer walls of two sides of the straight bar. The configuration is easily assembled and has tight stability and no residual gaps are left.

Abstract: A hidden interconnection arrangement of fence or railing includes two or more engaging rails, a plurality of fasteners configured to pass through position holes of the engaging rails and fasten to fastening holes of a plurality of upright posts, and a pair of upper engaging arm and lower engaging arm integrally protruded from an inner surface of an engaging wall of a lateral beam, defining an engaging recess therebetween. A downward force applied to a top wall of the lateral beam is able to press a bottom guider edge of the lower engaging arm downwards against a top edge of the engaging rail that generates a reaction force to enlarge the bottom opening of the lateral beam to allow the engaging rail to be engaged in the engaging recess and locked between the upper engaging arm and the lower engaging arm of the lateral beam.

Abstract: Disclosed is a positioning device for a fence supplemented with a pet guardrail. The pet guardrail is fixed to a side of an existing fence in a side-attaching manner, and an upper crossbar and a lower crossbar of the pet guardrail are fixed to an outer side of the existing fence by bolts and covered and protected by front and rear cover plates, and both ends of the upper crossbar and lower crossbar are sheathed with a side sleeve for protection. In this way, the grid spacing of the existing fence can be reduced to prevent pets from escaping, and the overall appearance is aesthetic, and the overall structure avoids people or pets from being scratched by the bolts and just requires simple operations for the installation.

Abstract: A positioning device for fence supplemented with pet guardrail comprises: an upper embedding slot and a lower embedding slot having face-to-face openings and extending axially being respectively formed on an opposite outside of the upper crossbar and the lower crossbar of the pet guardrail, for embedding the upper and lower ends of the straight rod and fixing the straight rod via the positioning peg from the inner side of the upper crossbar and the lower crossbar to avoid the exposure of the positioning peg and omitting the installation of the front cover plate on the front side of the upper crossbar and the lower crossbar, and moreover, the side cover installed and covered on the left and right ends of the upper crossbar and the side cover facing the end of side pole of the existing fence being an circular arc surface, thereby meeting the installation inclination angle of the existing fence. The configuration of the circular arc surface enables the side cover to maintain attached with the side pole.

Abstract: Disclosed is a positioning device for a fence supplemented with a pet guardrail. The pet guardrail is fixed to a side of an existing fence in a side-attaching manner, and an upper crossbar and a lower crossbar of the pet guardrail are fixed to an outer side of the existing fence by bolts and covered and protected by front and rear cover plates, and both ends of the upper crossbar and lower crossbar are sheathed with a side sleeve for protection. In this way, the grid spacing of the existing fence can be reduced to prevent pets from escaping, and the overall appearance is aesthetic, and the overall structure avoids people or pets from being scratched by the bolts and just requires simple operations for the installation.