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A folding structure for a foldable container having a base platform, bottom side rails disposed at both sides of the base platform, and corner posts disposed at both sides of the bottom rails. The corner posts are pivotally attached to the bottom side rails via pins and the sides of the corner posts

A folding structure for a foldable container having a base platform, bottom side rails disposed at both sides of the base platform, and corner posts disposed at both sides of the bottom rails. The corner posts are pivotally attached to the bottom side rails via pins and the sides of the corner posts are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position. The corner post locking device includes inner locking apertures arranged on both sides of the ends of the bottom side rails. Outer locking apertures are arranged on both sides of the lower ends of the corner posts which correspond to the inner locking apertures when the corner posts are in the upright position. Threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly.

대표청구항 ▼

1. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins

1. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins (7), wherein the sides of the corner posts (2) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates (1′) disposed on both sides of the ends of the bottom side rails (1) and attached to the bottom side rails (1), outer plates (2′) disposed on both sides of the lower ends of the corner posts (2) and attached to the corner posts (2) which correspond to the inner plates (1′); wherein the inner plates (1′) are provided with inner locking apertures; and wherein the outer plates (2′) are provided with outer locking apertures (8) which correspond to the inner locking apertures when the corner posts (2) are in a upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein the cross section of the corner post (2) is U-shaped, with the opening of the U-shaped cross section toward to the bottom side rail, and the inner size of the cross section matches with the outer size of the bottom side rail (1), the corresponding section of the bottom side rail (1) is in the U-shaped groove of the corner post (2) when the corner post (2) is in a folded down position toward the bottom side rail (1).2. A folding structure as claimed in claim 1 wherein in both sides of the lower ends of the corner posts (2) are provided with outer locking apertures (9) which correspond to the inner locking apertures when the corner posts (2) are in a folded down position, and threaded taper pins (5) are further provided which engage with the inner and outer locking apertures correspondingly.3. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins (7), wherein the sides of the corner posts (2) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates (1′) disposed on both sides of the ends of the bottom side rails (1) and attached to the bottom rails (1), outer plates (2′) disposed on both sides of the lower ends of the corner posts (2) and attached to the corner posts (2) which correspond to the inner plates (1′); wherein the inner plates (1′) are provided with inner locking apertures; and wherein the outer plates (2′) are provided with outer locking apertures (8) which correspond to the inner locking apertures when the corner posts (2) are in the upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein one part of the taper pin (5) is in a conical form and the other part is in a column form with outer threads (21), the outer side of the outer plate (2′) where the locking aperture (8) and the taper pin (5) engage with each other is provided with a locking ring (4) which corresponds to the outer threads (21) and welds with the outer plate (2′).4. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins (7), wherein the sides of the corner posts (2) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates (1′) disposed on both sides of the ends of the bottom side rails (1) and attached to the bottom rails (1), outer plates (2′) disposed on both sides of the lower ends of the corner posts (2) and attached to the corner posts (2) which correspond to the inner plates (1′); wherein the inner plates (1′) are provided with inner locking apertures; and wherein the outer plates (2′) are provided with outer locking apertures (8) which correspond to the inner locking apertures when the corner posts (2) are in the upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein the end surface of the taper pin (5) is provided with a projection bar (23), whose side is provided with a plane (22′) and a column plane (23′) which perpendicular to the end surface of the taper pin (5); the plane (22′) and the column plane (23′) are provided with apertures (22) respectively; a handle (3) is further provided, whose lower end is provided with a projection head (3′) which corresponds to the aperture (22).5. A folding structure as claimed in claim 4, wherein the side of the locking aperture (8) is provided with an upper handle carrying plate (19) and a lower handle carrying plate (20), both attached to the outer plates (2′); the carrying plate (19) is provided with an aperture which corresponds to the diameter of the main part of the handle (3), the carrying plate (20) is provided with an aperture which corresponds to the projection head (3′).6. A folding structure as claimed in claim 5, wherein the upper end of the handle (3) is provided with a terminal plate (3″) which is perpendicular to the handle (3), and the outer plate (2′) is provided with a baffle (18) which corresponds to the terminal plate (3″).7. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins (7), wherein the sides of the corner posts (2) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates (1′) disposed on both sides of the ends of the bottom side rails (1) and attached to the bottom rails (1), outer plates (2′) disposed on both sides of the lower ends of the corner posts (2) and attached to the corner posts (2) which correspond to the inner plates (1′); wherein the inner plates (1′) are provided with inner locking apertures; and wherein the outer plates (2′) are provided with outer locking apertures (8) which correspond to the inner locking apertures when the corner posts (2) are in the upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein the outer side of the outer plate (2′) where the outer locking aperture (9) and the taper pin (5) engages is provided with a locking ring (6) which corresponds to outer threads (21) and welds with the outer plate (2′) as a whole.8. A folding structure as claimed in claim 1, wherein the inner sides of the ends of the bottom side rails (1) close to the corner posts (2) are provided with twist locks (24), which are pivotally attached to the bottom side rails (1) via pins (25); and the bottom plates (28) of the corner posts (2) are provided with apertures (27) which correspond to the twist locks (24).9. A folding structure for a foldable container, consisting of a base platform, bottom side rails (1) disposed at both sides of the base platform, and corner posts (2) disposed at the ends of the bottom side rails (1); the corner posts (2) are pivotally attached to the bottom side rails (1) via pins (7), wherein the sides of the corner posts (2) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates (1′) disposed on both sides of the ends of the bottom side rails (1) and attached to the bottom rails (1), outer plates (2′) disposed on both sides of the lower ends of the corner posts (2) and attached to the corner posts (2) which correspond to the inner plates (1′); wherein the inner plates (1′) are provided with inner locking apertures; and wherein the outer plates (2′) are provided with outer locking apertures (8) which correspond to the inner locking apertures when the corner posts (2) are in the upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein the pin (7) is provided with a groove (7′), which is further provided with keys (13, 12) on both ends, the keys (12) is welded to the pin (7) at one end and extended into the corresponding groove of the outer plate (2′) at the other end; the key (13) extends into the groove (7′) at one end and the corresponding groove of the outer plate (2′) at the other end; an pin (17) is further provided which goes through an aperture disposed on the front end of the pin (7) and perpendicular to the axis of the pin (7) and an open aperture disposed on the outer side of the key (13).10. A folding structure as claimed in claim 9, wherein both outer sides of the ends of the bottom side rails (1) are provided springs (11), the spring is attached to the plate (11′) welded with the bottom side rail (1) at one end and to the outer end of the rod (10) at the other end, with the inner end of the rod (10) hinged to a pin (15), both ends of the pin (15) are welded with one end of the plate rods (16), the other end of the plate rods (16) are provided with an aperture which corresponds to the pin (7); the plate rod (16) and the pin (7) engage between the two inner plates (1′) of the bottom side rail (1); a key (14) is further provided whose one end extends into the groove (7′) of the pin (7), the other end is positioned between and welded with the two plate rods (16).11. A folding structure as claimed in claim 1, wherein the proper position of the bottom side rail (1) is provided with a groove (30′) which corresponds to a corner fitting (31) on top of the corner post (2), the corner fitting (31) happen to be placed in the groove when the corner post (2) is in a folded down position.12. A folding structure as claimed in claim 3, wherein both sides of the lower ends of the corner posts (2) are provided with outer locking apertures (9) which correspond to the inner locking apertures when the corner posts (2) are in a folded down position, and threaded taper pins (5) are further provided which engage with the inner and outer locking apertures correspondingly.13. A folding structure as claimed in claim 4, wherein both sides of the lower ends of the corner posts (2) are provided with outer locking apertures (9) which correspond to the inner locking apertures when the corner posts (2) are in a folded down position, and threaded taper pins (5) are further provided which engage with the inner and outer locking apertures correspondingly.14. A folding structure as claimed in claim 7, wherein both sides of the lower ends of the corner posts (2) are provided with outer locking apertures (9) which correspond to the inner locking apertures when the corner posts (2) are in a folded down position, and threaded taper pins (5) are further provided which engage with the inner and outer locking apertures correspondingly.15. A folding structure as claimed in claim 9, wherein both sides of the lower ends of the corner posts (2) are provided with outer locking apertures (9) which correspond to the inner locking apertures when the corner posts (2) are in a folded down position, and threaded taper pins (5) are further provided which engage with the inner and outer locking apertures correspondingly.16. A folding structure as claimed in claim 3, where in the inner sides of the ends of the bottom side rails (1) close to the corner posts (2) are provided with twist locks (24), which arc pivotally attached to the bottom side rails (1) via pins (25); and the bottom plates (28) of the corner posts (2) are provided with apertures (27) which correspond to the twist locks (24).17. A folding structure as claimed in claim 4, where in the inner sides of the ends of the bottom side rails (1) close to the corner posts (2) are provided with twist locks (24), which are pivotally attached to the bottom side rails (1) via pins (25); and the bottom plates (28) of the corner posts (2) are provided with aperture (27) which correspond to the twist locks (24).18. A folding structure as claimed in claim 7, wherein the inner sides of the ends of the bottom side rails (1) close to the corner posts (2) are provided with twist locks (24), which are pivotally attached to the bottom side rails (1) via pins (25); and the bottom plates (28) of the corner posts (2) are provided with apertures (27) which correspond to the twist locks (24).19. A folding structure as claimed in claim 9, wherein the inner sides of the ends of the bottom side rails (1) close to the corner posts (2) are provided with twist lock (24), which are pivotally attached to the bottom side rails (1) via pins (25); and the bottom plates (28) of the corner posts (2) are provided with apertures (27) which correspond to the twist locks (24).20. A folding structure as claimed in claim 3, wherein the proper position of the bottom side rail (1) is provided with a groove (30′) which corresponds to a corner fitting (31) on top of the corner post (2), the corner fitting (31) happen to be placed in the groove when the corner post (2) is in a folded down position.21. A folding structure as claimed in claim 4, wherein the proper position of the bottom side rail (1) is provided with a groove (30′) which corresponds to a corner fitting (31) on top of the corner post (2), the corner fitting (31) happen to be placed in the groove when the corner post (2) is in a folded down position.22. A folding structure as claimed in claim 7, wherein the proper position of the bottom side rail (1) is provided with a groove (30′) which corresponds to a corner fitting (31) on top of the corner post (2), the corner fitting (31) happen to be placed in the groove when the corner post (2) is in a folded down position.23. A folding structure as claimed in claim 9, wherein the proper position of the bottom side rail (1) is provided with a groove (30′) which corresponds to a corner fitting (31) on top of the corner post (2), the corner fitting (31) happen to be placed in the groove when the corner post (2) is in a folded down position.