A calibration method implemented by a computer, includes: measuring, with a laser ranging sensor, markers attached to at least two predetermined positions of a bed portion of a trampoline and calculating coordinates of the markers in a first coordinate system with a position of the laser ranging sensor being an origin; and calculating a conversion parameter to convert coordinates of respective positions of the first coordinate system into coordinates of respective positions of a second coordinate system with a center position of the bed portion being an origin based on a relationship between the calculated coordinates of the markers and the at least two predetermined positions of the bed portion.

A mini-trampoline is disclosed. In one embodiment, a base support frame is circumferentially offset from a trampoline mat. The base support frame includes a horizontal support frame with vertical support members extending subjacently therefrom. Resilient members circumextend from the trampoline mat to the horizontal support frame. Each of the vertical support members includes a suction cup having a suction cup locking mechanism at a lower end. A support assembly is secured to the base support frame and includes a T-shaped support bar having handles cantilevering toward the trampoline mat.

A mini-trampoline is disclosed. In one embodiment, a base support frame is circumferentially offset from a trampoline mat. The base support frame includes a horizontal support frame with vertical support members extending subjacently therefrom. Resilient members circumextend from the trampoline mat to the horizontal support frame. Each of the vertical support members includes a suction cup having a suction cup locking mechanism at a lower end. A support assembly is secured to the base support frame and includes a T-shaped support bar having handles cantilevering toward the trampoline mat.

A trampoline includes a bounce fabric, a plurality of fabric clamps and a fixed frame. The bounce fabric is connected to the fabric clamps, and one end of the fabric clamp is connected to one end of a spring. The fixed frame includes connectors and frame grooved pipes. The surface of the frame grooved pipe is provided with a grooved-pipe horizontal channel, and the other end of the spring is connected to the grooved-pipe horizontal channel on the surface of the frame grooved pipe. The connector is provided with a grooved-pipe connecting end and a support-pipe connecting end. The inner side of the grooved-pipe connecting end is provided with a through hole, and the surface of the grooved-pipe connecting end is provided with a groove. One end of the frame grooved pipe is arranged in the through hole. The groove is arranged in the grooved-pipe horizontal channel.

A trampoline includes a bounce fabric, a plurality of fabric clamps and a fixed frame. The bounce fabric is connected to the fabric clamps, and one end of the fabric clamp is connected to one end of a spring. The fixed frame includes connectors and frame grooved pipes. The surface of the frame grooved pipe is provided with a grooved-pipe horizontal channel, and the other end of the spring is connected to the grooved-pipe horizontal channel on the surface of the frame grooved pipe. The connector is provided with a grooved-pipe connecting end and a support-pipe connecting end. The inner side of the grooved-pipe connecting end is provided with a through hole, and the surface of the grooved-pipe connecting end is provided with a groove. One end of the frame grooved pipe is arranged in the through hole. The groove is arranged in the grooved-pipe horizontal channel.

The present disclosure relates to an inflatable structure transformable between a deflated state and an inflated state. The inflatable structure comprises a drop stitch fabric having a first layer and a second layer tethered by drop stitches. The inflatable structure is provided with, along at least a portion of an edge of the drop stitch fabric, an edge fixation line and an at least first inner fixation line at an at least first margin from the edge, the edge fixation line and the at least first inner fixation line comprising coupling means fixating the first layer to the second layer. The inflatable structure is further provided with, between the edge fixation line and the at least first inner fixation line, a non-inflatable connectable element e.g. adapted to be connectable with a detachably attachable counterpart element.

The present disclosure relates to an inflatable structure transformable between a deflated state and an inflated state. The inflatable structure comprises a drop stitch fabric having a first layer and a second layer tethered by drop stitches. The inflatable structure is provided with, along at least a portion of an edge of the drop stitch fabric, an edge fixation line and an at least first inner fixation line at an at least first margin from the edge, the edge fixation line and the at least first inner fixation line comprising coupling means fixating the first layer to the second layer. The inflatable structure is further provided with, between the edge fixation line and the at least first inner fixation line, a non-inflatable connectable element e.g. adapted to be connectable with a detachably attachable counterpart element.

The invention discloses a multifunctional trampoline, which relates to the field of children's entertainment. The utility model relates to a multifunctional trampoline, which comprises a football frame. The left wall surface of the football frame is fixedly provided with a bottom support frame, the outer thread of the bottom support frame is provided with a top vertical strut, the upper end surface of the bottom support frame is welded with a circular frame, and the circular frame is formed by inserting a multi end arc frame and fixedly connecting with bolts, and the top surface of the circular frame is provided with a trample cloth, The top vertical strut is provided with a top connecting device, and the inner side of the top connecting device is fixedly connected with a purse seine, the inner side of the top vertical strut is provided with an arc contact block.

The invention discloses a multifunctional trampoline, which relates to the field of children's entertainment. The utility model relates to a multifunctional trampoline, which comprises a football frame. The left wall surface of the football frame is fixedly provided with a bottom support frame, the outer thread of the bottom support frame is provided with a top vertical strut, the upper end surface of the bottom support frame is welded with a circular frame, and the circular frame is formed by inserting a multi end arc frame and fixedly connecting with bolts, and the top surface of the circular frame is provided with a trample cloth, The top vertical strut is provided with a top connecting device, and the inner side of the top connecting device is fixedly connected with a purse seine, the inner side of the top vertical strut is provided with an arc contact block.

In this disclosure a connection arrangement for a trampoline is set out, the arrangement including a mat and a frame. The connection arrangement includes a cord and a security piece, which includes a receiving part and a cord holding part. The cord holding part is configured to receive both ends of the cord and thus forming a loop that includes the cord and the cord holding part. The receiving part receives the cord holding part and one end of the loop through an opening. The loop is configured to wrap around some horizontal part of the frame of the trampoline when the connection arrangement is fitted onto the frame.