A foldable bag frame and a pet bag using same are presented. The foldable bag frame includes four top support bars connected end-to-end in sequence, four bottom support bars connected end-to-end in sequence, and connecting rods. Each of the connecting rods consists of two hingedly-connected short-se
A foldable bag frame and a pet bag using same are presented. The foldable bag frame includes four top support bars connected end-to-end in sequence, four bottom support bars connected end-to-end in sequence, and connecting rods. Each of the connecting rods consists of two hingedly-connected short-segment connecting rods. The foldable bag frame further includes a sleeve slidable along the connecting rod, and a spring fixedly connected to one end of the sleeve and sleeved over an outer side of the connecting rod, the other end of the spring being connected to the non-fixed end of a short-segment connecting rod. When the spring is in an initial state, the sleeve connected thereto covers the hinged portion of the connecting rod. By controlling foldability of the connecting rods, folding of the frame is conveniently achieved, making it possible to use a strong rigid material for the frame to meet stability during use.
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1. A foldable bag frame, comprising four top support bars connected end-to-end in sequence and four bottom support bars connected end-to-end in sequence, wherein neighboring top support bars are at an angle of 90°, the four top support bars form a rectangular top portion, top-support-bar connection
1. A foldable bag frame, comprising four top support bars connected end-to-end in sequence and four bottom support bars connected end-to-end in sequence, wherein neighboring top support bars are at an angle of 90°, the four top support bars form a rectangular top portion, top-support-bar connection joints are formed at the four vertices of the rectangular top portion, neighboring bottom support bars are at an angle of 90°, the four bottom support bars form a rectangular bottom portion, bottom-support-bar connection joints are formed at the four vertices of the rectangular bottom portion, upper-end connection protrusions are formed at the bottom of the top-support-bar connection joints, lower-end connection protrusions are correspondingly formed at the top of the bottom-support-bar connection joints, the upper-end connection protrusions and the lower-end connection protrusions each have a connecting-rod mounting groove correspondingly formed therein, and a shaft hole is correspondingly formed on a side wall of the mounting groove; further comprising connecting rods, wherein each of the connecting rods consists of two hingedly-connected short-segment connecting rods, the non-fixed end of each of the short-segment connecting rods protrudes to form a mounting protrusion that matches the connecting-rod mounting groove, a pin shaft mounting hole is formed on the mounting protrusion, the mounting protrusion is inserted into the mounting groove, and the connecting rod is separately fixed to the top support bar and the bottom support bar by means of a pin shaft; and further comprising a sleeve slidable along the connecting rod, and a spring fixedly connected to one end of the sleeve and sleeved over an outer side of the connecting rod, the other end of the spring being fixed to the non-fixed end of a short-segment connecting rod, wherein when the spring is in an initial state, the sleeve connected thereto covers the hinged portion of the connecting rod. 2. The foldable bag frame according to claim 1, wherein the spring is sleeved over the outer side of the upper short-segment connecting rod. 3. The foldable bag frame according to claim 2, wherein a fixing lug is further formed on an outer wall of the sleeve. 4. A pet bag using the foldable bag frame according to claim 3, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 5. The foldable bag frame according to claim 3, wherein rope holes for a rope to pass through are correspondingly formed on the top-support-bar connection joints or the bottom-support-bar connection joints. 6. A pet bag using the foldable bag frame according to claim 2, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 7. The foldable bag frame according to claim 1, wherein a fixing lug is further formed on an outer wall of the sleeve. 8. The foldable bag frame according to claim 7, wherein rope holes for a rope to pass through are correspondingly formed on the top-support-bar connection joints or the bottom-support-bar connection joints. 9. A pet bag using the foldable bag frame according to claim 8, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 10. A pet bag using the foldable bag frame according to claim 7, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 11. A pet bag using the foldable bag frame according to claim 1, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 12. The pet bag according to claim 11, wherein a rope is a fabric strap. 13. A foldable bag frame, comprising four top support bars connected end-to-end in sequence and four bottom support bars connected end-to-end in sequence, wherein neighboring top support bars are at an angle of 90°, the four top support bars form a rectangular top portion, top-support-bar connection joints are formed at the four vertices of the rectangular top portion, neighboring bottom support bars are at an angle of 90°, the four bottom support bars form a rectangular bottom portion, bottom-support-bar connection joints are formed at the four vertices of the rectangular bottom portion, upper-end connection protrusions are formed at the bottom of the top-support-bar connection joints, lower-end connection protrusions are correspondingly formed at the top of the bottom-support-bar connection joints, the upper-end connection protrusions and the lower-end connection protrusions each have a connecting-rod mounting groove correspondingly formed therein, and a shaft hole is correspondingly formed on a side wall of the mounting groove; further comprising connecting rods, wherein each of the connecting rods consists of three short-segment connecting rods hingedly connected in sequence, the non-fixed end of each of the short-segment connecting rods protrudes to form a mounting protrusion that matches the connecting-rod mounting groove, a pin shaft mounting hole is formed on the mounting protrusion, the mounting protrusion is inserted into the mounting groove, and the connecting rod is separately fixed to the top support bar and the bottom support bar by means of a pin shaft; and further comprising two sleeves slidable along the connecting rod, and a spring fixedly connected to one end of the sleeve and sleeved over an outer side of the connecting rod, the other end of the spring being separately fixed to the non-fixed ends of the upper short-segment connecting rod and the lower short-segment connecting rod, wherein when the spring is in an initial state, the sleeves connected thereto cover the hinged portions between the upper short-segment connecting rod and the lower short-segment connecting rod and between the hinged portion between the middle short-segment connecting rod and the lower short-segment connecting rod respectively. 14. The foldable bag frame according to claim 13, wherein a fixing lug is further formed on an outer wall of the sleeve. 15. The foldable bag frame according to claim 14, wherein rope holes for a rope to pass through are correspondingly formed on the top-support-bar connection joints or the bottom-support-bar connection joints. 16. A pet bag using the foldable bag frame according to claim 15, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 17. A pet bag using the foldable bag frame according to claim 14, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body. 18. A pet bag using the foldable bag frame according to claim 13, wherein a bag body is fixed at an outer layer of the foldable bag frame, the bag body is supported by the foldable bag frame to form a cubic accommodation space, and an opening through which an animal breathes is formed on a side surface of the bag body.
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