Disclosed is a trampoline, including a jumping surface and a foldable bed frame, where the foldable bed frame includes a frame body and a support assembly. A connecting base is arranged between two adjacent side rods, and each side rod includes two section rods, where proximal ends of the two section rods are pivotally connected to each other, and distal ends of the two section rods are pivotally connected to corresponding connecting bases respectively. A supporting base is arranged below each of the connecting bases. Each support assembly includes two support rods, upper ends of the two support rods are pivotally connected to corresponding connecting bases respectively, and lower ends of the two support rods are pivotally connected to corresponding supporting bases respectively. The jumping surface is located inside the frame body, and peripheral edges of the jumping surface are connected to the frame body.
1 . A trampoline, comprising: a foldable bed frame, the foldable bed frame comprising:
a frame body formed by a plurality of side rods in a surrounding manner, each side rod of the plurality of side rods formed by two section rods including a first section rod and a second section rod, each of the first section rod and the second section rod having a proximal end and a distal end, the proximal end of each first section rod is provided with a first pivot connection piece, and the proximal end of each second section rod is provided with a second pivot connection piece, wherein for each side rod, the proximal end of the first section rod is pivotally connected to the proximal end of the second section rod;
a connecting base arranged between every two adjacent side rods, wherein for each side rod the distal end of the first section rod and the distal end of the second section rod are pivotally connected to a corresponding connecting base;
a support assembly arranged below each side rod of the plurality of side rods; each of the support assemblies comprising two support rods pivotally connected to each other in an X-shaped cross manner, wherein upper ends of the two support rods of each of the support assemblies are pivotally connected to corresponding connecting bases, respectively; and
a supporting base arranged below each of the connecting bases, wherein lower ends of the two support rods of each of the support assemblies are pivotally connected to corresponding supporting bases, respectively; and
a jumping surface located inside the frame body, wherein peripheral edges of the jumping surface are connected to the frame body through a plurality of connecting members,
wherein when the foldable bed frame is being folded, the proximal ends of the first and second section rods of each side rod of the plurality of side rods move upward, the distal ends of the first and second section rods of each side rod of the plurality of side rods move closer to each other, and the two support rods of each of the support assemblies also move closer to each other at the upper ends and the lower ends, such that the first and second section rods of each side rod of the plurality of side rods and the two support rods of each of the support assemblies move toward a center of the trampoline, and the jumping surface and the plurality of connecting members are folded inward,
wherein the two section rods of each side rod of the plurality of side rods are line-shaped when they are unfolded,
wherein the first pivot connection piece at the proximal end of each first section rod comprises a first inserted connection portion that is inserted into and fixedly connected to of the proximal end of the corresponding first section rod, a first circular pivot connection portion exposed outside the proximal end of the corresponding first section rod, a first arc-shaped concave portion that is located on a side of the first circular pivot connection portion close to the first inserted connection portion and extends outward in an axial direction of the first circular pivot connection portion, a first sector-shaped limiting block that is arranged on an outer surface of the first circular pivot connection portion in a protruding manner and is close to the first arc-shaped concave portion, and a first sector-shaped limiting groove that is concavely formed on the outer surface of the first circular pivot connection portion and is away from the first arc-shaped concave portion, wherein one end of the first sector-shaped limiting groove is provided with a vertical first end wall, and the other end of the first sector-shaped limiting groove is provided with a horizontal second end wall,
wherein the second pivot connection piece at the proximal end of each second section rod comprises a second inserted connection portion that is inserted into and fixedly connected to of the proximal end of the corresponding second section rod, a second circular pivot connection portion that is exposed outside the proximal end of the corresponding second section rod and arranged with the first circular pivot connection portion in a staggered manner, a second arc-shaped concave portion that is located on a side of the second circular pivot connection portion close to the second inserted connection portion and extends inward in an axial direction of the second circular pivot connection portion, a second sector-shaped limiting block that is arranged on an inner surface of the second circular pivot connection portion in a protruding manner and is close to the second arc-shaped concave portion, and a second sector-shaped limiting groove that is concavely formed on the inner surface of the second circular pivot connection portion and is away from the second arc-shaped concave portion, wherein one end of the second sector-shaped limiting groove is provided with a vertical third end wall, and the other end of the second sector-shaped limiting groove is provided with a horizontal fourth end wall,
wherein the first circular pivot connection portion and the second circular pivot connection portion are staggered side by side and pivotally connected to each other through a pin, the first arc-shaped concave portion is slidably fitted with an outer circular surface of the second circular pivot connection portion, and the second arc-shaped concave portion is slidably fitted with an outer circular surface of the first circular pivot connection portion, wherein the first sector-shaped limiting block is inserted into and slidably matched with the second sector-shaped limiting groove, and the second sector-shaped limiting block is inserted into and slidably matched with the first sector-shaped limiting groove,
wherein when the two section rods of each of the side rods are folded, the first arc-shaped concave portion slides to a lower side of the outer circular surface of the second circular pivot connection portion, the second arc-shaped concave portion slides to a lower side of the outer circular surface of the first circular pivot connection portion, the first sector-shaped limiting block slides to a position where its top abuts against the fourth end wall, and the second sector-shaped limiting block slides to a position where its top abuts against the second end wall.
2 . The trampoline according to claim 1 , wherein the frame body is a polygon frame body formed by a plurality of equal-length side rods in a surrounding manner.
3 . The trampoline according to claim 1 , wherein a supporting plane configured to contact the ground is arranged at a bottom of each of the supporting bases.
4 . The trampoline according to claim 1 , wherein a pivot connection position between the proximal ends of the first and second section rods of each side rod of the plurality of side rods is aligned vertically with a pivot connection position of the two support rods of a corresponding support assembly pivotally connected to each other in the X-shaped cross manner.
5 . The trampoline according to claim 1 , wherein pivot connection positions of the distal ends of the first and second section rods of each side rod of the plurality of side rods are aligned vertically with pivot connection positions for the upper ends of and pivot connection positions for the lower ends of the two support rods of one corresponding support assembly respectively.
6 . The trampoline according to claim 1 , wherein the first circular pivot connection portion, the first arc-shaped concave portion, the first sector-shaped limiting block, and the first sector-shaped limiting groove are concentrically arranged, the first sector-shaped limiting block and the first arc-shaped concave portion are parallel to each other, the first sector-shaped limiting groove is arranged relative to the first sector-shaped limiting block, a central angle of the first sector-shaped limiting block is 90 degrees, and a central angle of the first sector-shaped limiting groove is 270 degrees, and
wherein the second circular pivot connection portion, the second arc-shaped concave portion, the second sector-shaped limiting block, and the second sector-shaped limiting groove are also concentrically arranged, the second sector-shaped limiting block and the second arc-shaped concave portion are parallel to each other, the second sector-shaped limiting groove is arranged relative to the second sector-shaped limiting block, a central angle of the second sector-shaped limiting block is 90 degrees, and a central angle of the second sector-shaped limiting groove is 270 degrees.
7 . The trampoline according to claim 1 , wherein two first pivot connection grooves are symmetrically formed on both sides of an upper end of each of the connecting bases, and the two first pivot connection grooves are configured for pivotally connecting the adjacent side rods,
wherein both sides of a lower end of each of the connecting bases are provided with a second pivot connection groove inwardly arranged and a third pivot connection groove outwardly arranged, and both sides of each of the supporting bases are provided with a fourth pivot connection groove inwardly arranged and a fifth pivot connection groove outwardly arranged, and
wherein each of the second pivot connection groove and the third pivot connection groove is configured for pivotally connecting one of the upper ends of the corresponding support rods, and each of the fourth pivot connection groove and the fifth pivot connection groove is configured for pivotally connecting one of the lower ends of the corresponding support rods.
8 . The trampoline according to claim 1 , wherein the foldable bed frame further comprises at least one handrail rod, a lower end of the handrail rod is detachably inserted into one corresponding set of the connecting base and the supporting base, and a handrail is arranged at an upper end of the handrail rod, wherein the handrail rod has a telescopic rod structure.