CN-2017 1 0449973 (2017-06-09); CN-2017 1 0449974 (2017-06-09); CN-2017 2 0694905 U (2017-06-09); CN-2017 2 0694971 U (2017-06-09); CN-2017 2 0694972 U (2017-06-09); CN-2017 2 0694973 U (2017-06-09); CN-2017 2 0694974 U (2017-06-09); CN-2017 2 0694975 U (2017-06-09); CN-2017 2 0695021 U (2017-06-09); CN-2017 2 0695022 U (2017-06-09); CN-2017 2 0695023 U (2017-06-09); CN-2017 2 0948557 U (2017-07-27)
발명자
/ 주소
Sun, Benlong
출원인 / 주소
Blue Ridge Recreational Gear, LLC.
대리인 / 주소
WPAT, P.C., Intellectual Property Attorneys
인용정보
피인용 횟수 :
0인용 특허 :
33
초록▼
A folding type collapsible wagon comprises a frame assembly, a tow bar assembly and wheels, wherein the tow bar assembly is arranged in front of the frame assembly, and each side frame comprises coplanar X-shaped cross tube assemblies. Each coplanar X-shaped cross tube assembly comprises a first obl
A folding type collapsible wagon comprises a frame assembly, a tow bar assembly and wheels, wherein the tow bar assembly is arranged in front of the frame assembly, and each side frame comprises coplanar X-shaped cross tube assemblies. Each coplanar X-shaped cross tube assembly comprises a first oblique tube, two second oblique tubes and a hollow seat, wherein a first strip opening is formed in the middle of the hollow seat in the front-back direction, tube connectors are oppositely arranged at the front end and the rear end of the hollow seat in the vertical direction respectively, the first oblique tube penetrates through the first strip opening and is hinged to the middle of the first strip opening at the center through a hinge shaft, the two second oblique tubes are mounted in the tube connectors at the front end and the rear end of the hollow seat respectively, the two second oblique tubes are arranged in parallel and intersect with the first oblique tube in an X shape, and the first oblique tube, the two second oblique tubes and the hollow seat are all located on the same plane. The folding type collapsible wagon provided by the present disclosure is high in space utilization rate and attractive.
대표청구항▼
1. A folding type collapsible wagon, comprising: a frame assembly;a tow bar assembly and wheels, the tow bar assembly is arranged in front of the frame assembly, and the wheels are arranged at the bottom of the frame assembly; andtube connectors;wherein the frame assembly comprises a bottom frame, a
1. A folding type collapsible wagon, comprising: a frame assembly;a tow bar assembly and wheels, the tow bar assembly is arranged in front of the frame assembly, and the wheels are arranged at the bottom of the frame assembly; andtube connectors;wherein the frame assembly comprises a bottom frame, a front frame arranged in front of the bottom frame, a rear frame arranged behind the bottom frame, and collapsible side frames arranged on the left side and the right side of the bottom frame;wherein the front frame comprises a coplanar X-shaped cross tube assembly, inner guide tubes and outer guide tubes, the inner guide tubes and the outer guide tubes are all arranged vertically;wherein each side frame comprises the coplanar X-shaped cross tube assemblies;wherein each coplanar X-shaped cross tube assembly comprises a first oblique tube, two second oblique tubes and a hollow seat;wherein the tube connectors are oppositely arranged at the front end and the rear end of the hollow seat in the vertical direction respectively, andwherein the two second oblique tubes are mounted in the tube connectors at the front end and the rear end of the hollow seat respectively, and the two second oblique tubes are arranged in parallel and intersect with the first oblique tube in an X shape, and the first oblique tube, the two second oblique tubes and the hollow seat are all located on the same plane. 2. The folding type collapsible wagon of claim 1, wherein a strip opening is formed in the middle of the hollow seat in the front-back direction and the first oblique tube penetrates through the strip opening of the hollow seat and is hinged about the strip opening through a hinge shaft; andwherein the first oblique tube is at least 50% greater in length than either of the two second oblique tubes. 3. The folding type collapsible wagon of claim 1, wherein the front ends and the rear ends of the side frames are hinged to the front frame and the rear frame through upper brackets and lower brackets respectively; andwherein the bottom frame comprises a front bottom beam and a rear bottom beam, the rear end of the front bottom beam and the front end of the rear bottom beam can be turned by 90 degrees to be hinged together, the front end of the front bottom beam is hinged to the lower brackets of the front frame, and the rear end of the rear bottom beam is hinged to the lower brackets of the rear frame. 4. The folding type collapsible wagon of claim 1, wherein the upper ends of the inner guide tubes are connected with the upper brackets, the lower ends of the inner guide tubes are mounted in the outer guide tubes in a vertically telescopic mode, and the lower ends of the outer guide tubes are connected with the lower brackets; the structure of the rear frame is the same as the structure of the front frame. 5. The folding type collapsible wagon of claim 1, wherein each side frame comprises two coplanar X-shaped cross tube assemblies arranged side by side; wherein the two coplanar X-shaped cross tube assemblies are the front coplanar X-shaped cross tube assembly and the rear coplanar X-shaped cross tube assembly respectively; andwherein the front end of the first oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the lower bracket on the left side of the front frame. 6. The folding type collapsible wagon of claim 1, wherein the rear end of the first oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the front end of the front second oblique tube of the rear coplanar X-shaped cross tube assembly on the same side through a hinged joint. 7. The folding type collapsible wagon of claim 1, wherein the front end of the front second oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the upper bracket on the left side of the front frame, and the rear end of the rear second oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the front end of the first oblique tube of the rear coplanar X-shaped cross tube assembly on the same side through a bearing hinged joint. 8. The folding type collapsible wagon of claim 7, wherein the rear end of the first oblique tube of the rear coplanar X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the upper bracket on the rear frame, and the rear end of the rear second oblique tube of the rear X-shaped cross tube assembly of the side frame on the left side of the bottom frame is hinged to the lower bracket on the left side of the rear frame; andwherein the front end of the first oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the upper bracket on the right side of the front frame, the rear end of the first oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the front end of the front second oblique tube of the rear coplanar X-shaped cross tube assembly on the same side through a bearing hinged joint. 9. The folding type collapsible wagon of claim 8, wherein the front end of the front second oblique tube of the front coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the lower bracket on the right side of the front frame, and the rear end of the rear oblique second tube of the front coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the front end of the first oblique tube of the rear coplanar X-shaped cross tube assembly on the same side through a hinged joint; andwherein the rear end of the first oblique tube of the rear coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the lower bracket on the right side of the rear frame, and the rear end of the rear second oblique tube of the rear coplanar X-shaped cross tube assembly of the side frame on the right side of the bottom frame is hinged to the upper bracket of the rear frame. 10. The folding type collapsible wagon of claim 9, wherein the left end of the first oblique tube of the coplanar X-shaped cross tube assembly of the front frame is hinged to the upper bracket on the left side of the front frame, the right end of the first oblique tube of the coplanar X-shaped cross tube assembly of the front frame is hinged to the lower bracket on the right side of the front frame, the left end of the left second oblique tube of the coplanar X-shaped cross tube assembly of the front frame is hinged to the lower bracket on the left side of the front frame, andwherein the right end of the right second oblique tube of the coplanar X-shaped cross tube assembly of the front frame is hinged to the upper bracket on the right side of the front frame. 11. The folding type collapsible wagon of claim 10, wherein the left end of the first oblique tube of the coplanar X-shaped cross tube assembly of the rear frame is hinged to the lower bracket on the left side of the rear frame, the right end of the first oblique tube of the coplanar X-shaped cross tube assembly of the rear frame is hinged to the upper bracket on the right side of the rear frame; andwherein the left end of the left second oblique tube of the coplanar X-shaped cross tube assembly of the rear frame is hinged to the upper bracket on the left side of the rear frame, and the right end of the right second oblique tube of the coplanar X-shaped cross tube assembly of the rear frame is hinged to the lower bracket on the right side of the rear frame. 12. The folding type collapsible wagon of claim 1, wherein the tow bar assembly comprises a handle, an upper tow bar, a tow bar connecting seat, a tow bar limiting seat used for preventing the upper tow bar from being pulled out, two lower tow bars and a locking mechanism. 13. The folding type collapsible wagon of claim 12, wherein the upper end of the upper tow bar is fixedly connected with the handle, the tow bar limiting seat is in a T shape, the lower portion of the tow bar limiting seat is fixed to the bottom of the lower end of the upper tow bar, the maximum outer diameter of the tow bar limiting seat is greater than the outer diameter of the upper tow bar, and the upper portion of the tow bar limiting seat stretches into the upper tow bar from bottom to top; andwherein the two lower tow bars are the left lower tow bar and the right lower tow bar respectively. 14. The folding type collapsible wagon of claim 1, wherein the tow bar connecting seat is provided with a center opening in the axial direction, arranged outside the upper tow bar in a sleeving mode and located above the tow bar limiting seat, the upper end of the left lower tow bar is hinged to the left side of the tow bar connecting seat, the lower end of the left lower tow bar is hinged to the lower bracket on the left side of the front frame through a lower tow bar fixing seat, the upper end of the right lower tow bar is hinged to the right side of the tow bar connecting seat, and the lower end of the right lower tow bar is hinged to the lower bracket on the right side of the front frame through a lower tow bar fixing seat. 15. The folding type collapsible wagon of claim 1, wherein the locking mechanism comprises an unlocking pull ring, a push rod, a locking block, a reset spring, steel posts and pressing springs. 16. The folding type collapsible wagon of claim 15, wherein the unlocking pull ring is mounted on the handle in a vertical moving mode, and the push rod, the locking block and the reset spring are all located in the upper tow bar;wherein the upper end of the push rod is fixedly connected with the unlocking pull ring, and the lower end of the push rod is fixedly connected with the locking block; andwherein the upper end of the reset spring is connected with the locking block, and the lower end of the reset spring is connected with the upper portion of the tow bar limiting seat. 17. The folding type collapsible wagon of claim 15, wherein locking openings are formed in the left side and the right side of the lower end of the upper tow bar respectively, clamping grooves are formed in the left side and the right side of the locking block; andwherein the upper end of each clamping groove is an oblique surface, and the lower end of each clamping groove is deeper than the upper end of the clamping groove. 18. The folding type collapsible wagon of claim 1, wherein the steel posts are transversely arranged on the left side and the right side, steel post mounting grooves are formed in the left side and the right side of the center opening of the tow bar connecting seat respectively and communicate with the center opening of the tow bar connecting seat, andwherein the steel posts are mounted in the steel post mounting grooves in a transversely telescopic mode through the pressing springs, and the ends, facing the upper tow bar, of the steel posts are semispherical parts and abut against the outer wall of the upper tow bar. 19. The folding type collapsible wagon of claim 18, wherein the steel posts penetrate through the locking openings and stretch into the clamping grooves to lock the upper tow bar when completely stretching out of the upper tow bar; under the dual effect of the reset spring and the push rod, the clamping grooves in the locking block make the locking openings in the upper tow bar within the groove width ranges of the lower ends of the clamping grooves all the time. 20. The folding type collapsible wagon of claim 1, wherein the front bottom beam and the rear bottom beam are each of a V shape;wherein turning seats are arranged at the rear end of the front bottom beam and the front end of the rear bottom beam respectively;wherein the two turning seats are hinged through a hinge shaft; the front end of the front bottom beam is hinged to the lower brackets on the front frame, andwherein the rear end of the rear bottom beam is hinged to the lower brackets on the rear frame.
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