HEIGHT-ADJUSTABLE BALL CART

Abstract

HEIGHT-ADJUSTABLE BALL CART The invention relates to a height-adjustable ball cart comprising support rods (10) and connecting rods (20). The support rods (10) are mounted separately and connected to each other by the connecting rods (20). The support rod (10) comprises an outer rod (11) and an inner rod mounted through the outer rod (11) and movable relative to it. The outer rod (11) has integrated holes (111) formed through a wall thereof, and the inner rod comprises an integrated unit (123) and an elastic unit. The elastic unit can push the integrated unit (123) out of the outer rod (11) from the integrated hole (111). The user can adjust the height of the ball cart by attaching the integrated unit (123) through any of the integrated holes (111) at different heights. Figure to be published with the abbreviation: Figure 1

Claims

Demands

1. Height-adjustable balloon cart, characterized in that it comprises: multiple support rods (10) arranged vertically at intervals, and each of the support rods (10) comprising: an outer rod (11) which is a hollow rod and which comprises: multiple integrated holes (111) formed separately on the outer rod (11) and through a wall of the outer rod (11); an inner rod (12) mounted through the outer rod (11) and capable of moving relative to the outer rod (11); the inner rod (12) comprising: a first end (121) mounted in the outer rod (11); a second end (122) opposite the first end (121) and located outside the outer rod (11); an integrated unit (123) selectively mounted through one of the integrated holes (111);and an elastic unit (124) pushing against the integrated unit (123) from said integrated hole (111) among the integrated holes (111) to the outside of the outer rod (11); multiple connecting rods (20), each of the connecting rods (20) connecting two of the support rods (10); and a pocket (30) mounted on the support rods (10) and the connecting rods (20), the pocket (30) comprising a containment space.

2. A height-adjustable balloon cart according to claim 1, characterized in that: the outer rod (11) comprises: a first locking unit (112) fitted onto one end of the outer rod (11) and the inner rod (12) capable of moving relative to the first locking unit (112); the first locking unit (112) comprising a perforation, the perforation comprising: a first segment (113), a wall of the first segment (113) making close contact with an outer surface of the outer rod (11); and a second segment (114), a cross-section of the second segment (114) being smaller than an outer cross-section of the outer rod (11) and larger than an outer cross-section of the inner rod (12); the inner rod (12) comprises: a second locking unit (125) mounted on the first end (121) and an external cross-section of the second locking unit (125) being larger than the cross-section of the second segment (114); and a third locking unit (126) mounted on the second end (122) and an external cross-section of the third locking unit (126) being larger than the cross-section of the second segment (114).

3. Height-adjustable balloon trolley according to claim 1, characterized in that the inner rod (12) includes a wheel (127) mounted on the second end (122).

4. Height-adjustable balloon trolley according to claim 2, characterized in that the inner rod (12) includes a wheel (127) mounted on the third locking unit (126).

5. A height-adjustable balloon trolley according to any one of claims 1 to 4, characterized in that: each of the support rods (10) comprises: an upper pivoting base (13) mounted on an upper end of the support rod (10); and a pivoting lower base (14) pivotally mounted on the support rod (10) and capable of moving along the support rod (10); one end of one of the connecting rods (20) is pivotally mounted on the upper pivoting base (13) of one of the support rods (10) and another end of said connecting rod (20) among the connecting rods (20) is pivotally mounted on the lower pivoting base (14) of another of the support rods (10); one end of another of the connecting rods (20) is pivotally mounted on the lower pivoting base (14) of said support rod (10) among the support rods (10) and another end of said other of the connecting rods (20) is pivotally mounted on the upper pivoting base (13) of said other of the support rods (10); a center of said connecting rod (20) among the connecting rods (20) and a center of said other connecting rod (20) among the connecting rods (20) pivot on each other.

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