초록 ▼

An omni-direction rotatable dual-cup suction device includes two suction cups, which are respectively combined with and in communication with two evacuation structures, so that the two evacuation structures can evacuate air from the suction cups to induce vacuum suction forces. The two suction cups

An omni-direction rotatable dual-cup suction device includes two suction cups, which are respectively combined with and in communication with two evacuation structures, so that the two evacuation structures can evacuate air from the suction cups to induce vacuum suction forces. The two suction cups are respectively provided with a mounting seat and an attaching seat for securely coupling the two evacuation structures. The mounting seat includes a pillar fixed thereto. A collar receives a ball end of a bar therein and is attached to the pillar. The ball-ended bar is coupled to a threaded rod, which extends through an internally-threaded locking knob and received into the attaching seat to be secured by a nut. With such an arrangement, one of the suction cups can be attached to a planar fixture surface, while the other suction cup can be used to hold an article and is orientation adjustable in any direction.

대표청구항 ▼

1. An omni-direction rotatable dual-cup suction device, comprising: a first suction cup and a second suction cup, of which the first suction cup faces a first direction and the second suction cup faces a second direction generally different from the first direction, each of the suction cups having a

1. An omni-direction rotatable dual-cup suction device, comprising: a first suction cup and a second suction cup, of which the first suction cup faces a first direction and the second suction cup faces a second direction generally different from the first direction, each of the suction cups having an outer circumference from which a pull tab extends, the first and second suction cups being respectively combined with and in communication with first and second evacuation structures, which are operable for cycles of air evacuation to induce suction forces on the first and second suction cups respectively, the first and second evacuation structures respectively coupled to the first and second suction cups by a mounting seat and an attaching seat, the mounting seat comprising a pillar fixed thereto and having a free end portion, which forms an engagement section in the form of a circumferential groove having a cross-section of a conic configuration and extending circumferentially around an axis of the pillar, a collar, which forms a through bore, a bar, which has an end that forms a ball that is connected to the bar by a recessed neck and an opposite free end in which an internally-threaded hole is defined, the collar forming a stop flange at an end thereof, the bar being received through the bore of the collar with the ball, which is larger than the stop flange, engaging and thus retained inside the bore of the collar by the stop flange to be movable inside the bore in a limited manner, the pillar being inserted into the bore of the collar to such an extent that an end face of the pillar is in engagement with and abut the ball, a threaded tightening element, which is separate from the pillar and is received in and in threading engagement with an internally-threaded through hole defined in a circumferential wall of the collar in a direction substantially perpendicular to the axis of the pillar and communicating with the bore so that a tip of the tightening element engages and abuts against the conic configuration of the circumferential groove of the engagement section to apply a force to and thus cause deformation of the engagement section, a pin, which is set through an aperture that is defined through the circumferential wall of the collar to be partially received in and engage the engagement section for retaining the collar with the pillar when the tightening element is released from engagement with the circumferential groove of the engagement section of the pillar, the internally-threaded hole of the bar receiving and threadingly engaging a threaded rod, the threaded rod being received through and in threading engagement with an internally-threaded locking knob and further extending into the attaching seat, a nut located inside the attaching seat to engage and thus secure the threaded rod;whereby the first suction cup is adapted to attach through suction to a planar fixture surface and the second suction cup is adapted to hold, through suction, an article, wherein the tightening element is releasable to selectively orient the second suction cup and the article held thereby to a predetermined angular position in a selected direction. 2. The omni-direction rotatable dual-cup suction device as claimed in claim 1, wherein each of the first and second evacuation structures comprises a barrel, an air drawing tube, a pumping bar, a resilient element, a cushion ring, and a rubber ring, the barrel having a closed end from which the air drawing tube extends to have an end received into a through hole defined in each of the first and second suction cups, the pumping bar being first fit with the resilient element, the cushion ring, and the rubber ring and then engaging a screw to secure the cushion ring and the rubber ring to the pumping bar so as to form an assembly, which is then inserted into the barrel through an opposite open end of the barrel to complete each of the first and second evacuation structures. 3. The omni-direction rotatable dual-cup suction device as claimed in claim 1, wherein a through hole defined in the first suction cup comprises a first filter mounted thereto. 4. The omni-direction rotatable dual-cup suction device as claimed in claim 1, wherein a through hole defined in the second suction cup comprises a second filter mounted thereto. 5. The omni-direction rotatable dual-cup suction device as claimed in claim 1, wherein the collar defines a notch that extends through the stop flange and the circumferential wall of the collar and has a width sufficient to receive the neck of the bar to move in/out of the notch, whereby the bar is rotatable with respect to the collar into the notch to define an included angle with respect to the collar that is as large as 90 degrees. 6. The omni-direction rotatable dual-cup suction device as claimed in claim 1, wherein the attaching seat has a distal end to which a locking element is provided so that the attaching seat and the locking element together securely fix the second evacuation structure in position.