Sucker that is removed easily and quickly

A sucker includes a fixing seat, a sucker body, a control handle and a control valve. The sucker body has a first side provided with a recess and a second side provided with a connecting hole connected to the recess. The control valve includes a valve stem movably mounted on the fixing seat and movable to stop the recess. Thus, the valve stem can be pulled outwardly to detach from the recess of the sucker body so as to connect the connecting hole and the recess of the sucker body and to connect the connecting hole of the sucker body to the ambient air so as to break the vacuum state of the sucker body so that the sucker body can be removed from a surface easily and quickly.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a sucker and, more particularly, to a sucker that is attached onto a surface by a vacuum suction force.

2. Description of the Related Art

A conventional sucker in accordance with the prior art shown inFIGS. 6-8comprises a fixing seat61having a central portion provided with a through hole611, a sucker body60mounted on a first side of the fixing seat61and having a central portion provided with a driven post601extending through the through hole611of the fixing seat61, a control handle63pivotally mounted on a second side of the fixing seat61and having a first end provided with an eccentric portion631pivotally mounted on the driven post601of the sucker body60and abutting the second side of the fixing seat61and a second end provided with a drive portion632to facilitate a user holding the control handle63, and a compression spring62mounted on the driven post601of the sucker body60and biased between the sucker body60and the fixing seat61.

In operation, the sucker body60initially rests on a surface2, such as a wall. Then, the drive portion632of the control handle63is driven by a user to pivot the control handle63relative to the fixing seat61. In such a manner, the eccentric portion631of the control handle63is pivotable relative to the fixing seat61in an eccentric manner to pull the driven post601of the sucker body60so as to compress the sucker body60toward the fixing seat61, so that the second side of the sucker body60is curved to define a space602between the sucker body60and the surface2as shown inFIG. 8to produce a vacuum suction force so as to attach the sucker body60onto the surface2closely.

However, the sucker body60is disposed at a vacuum state as shown inFIG. 8, so that even if the drive portion632of the control handle63is returned to the original state, the sucker body60is still bonded on the surface2closely and tightly and cannot be removed from the surface2easily and quickly, thereby causing inconvenience to the user when wishing to remove the sucker body60from the surface2.

BRIEF SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a sucker, comprising a fixing seat, a sucker body mounted on a first side of the fixing seat and having a central portion provided with a driven post extending through the fixing seat, a control handle pivotally mounted on a second side of the fixing seat and having a first end provided with an eccentric portion pivotally mounted on the driven post of the sucker body and abutting the second side of the fixing seat and a second end provided with a drive portion, and a control valve mounted on the fixing seat and detachably abutting the sucker body to control a connection between the fixing seat and the sucker body. The sucker body has a first side provided with a recess facing the first side of the fixing seat and a second side provided with a connecting hole connected to the recess. The control valve includes a valve stem movably mounted on the fixing seat and movable to stop the recess of the sucker body so as to seal the connecting hole of the sucker body and to interrupt a connection between the connecting hole and the recess of the sucker body, and a restoring spring biased between the valve stem and the fixing seat to push the valve stem toward the recess of the sucker body.

The primary objective of the present invention is to provide a sucker that is removed easily and quickly.

Another objective of the present invention is to provide a sucker, wherein the pull knob of the valve stem can be pulled outwardly to detach the stop ball of the valve stem from the recess of the sucker body so as to connect the connecting hole and the recess of the sucker body and to connect the connecting hole of the sucker body to the ambient air so as to break the vacuum state of the sucker body so that the sucker body can be removed from a surface easily and quickly.

A further objective of the present invention is to provide a sucker, wherein the sucker body can be removed from the surface1without having to drive the control handle, thereby facilitating a user removing the sucker body from the surface.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially toFIGS. 1-3, a sucker in accordance with the preferred embodiment of the present invention comprises a fixing seat30, a sucker body10mounted on a first side of the fixing seat30and having a central portion provided with a driven post11extending through the fixing seat30, a control handle50pivotally mounted on a second side of the fixing seat30and having a first end provided with an eccentric portion51pivotally mounted on the driven post11of the sucker body10and abutting the second side of the fixing seat30and a second end provided with a drive portion52to facilitate a user holding the control handle50, a compression spring20mounted on the driven post11of the sucker body10and biased between the sucker body10and the fixing seat30, and a control valve40mounted on the fixing seat30and detachably abutting the sucker body10to control a connection between the fixing seat30and the sucker body10.

The eccentric portion51of the control handle50is pivotable relative to the fixing seat30to pull the driven post11of the sucker body10so as to compress the sucker body10toward the fixing seat30.

The sucker body10has a first side provided with a substantially semi-spherical recess12facing the first side of the fixing seat30and a second side provided with a connecting hole13connected to the recess12. The connecting hole13of the sucker body10has a size smaller than that of the recess12. The second side of the sucker body10is curved to define a space14connected to the connecting hole13when the sucker body10is pulled toward the fixing seat30. The connecting hole13of the sucker body10is connected between the recess12and the space14of the sucker body10.

The fixing seat30has a central portion provided with a through hole31to allow passage of the driven post11of the sucker body19. The second side of the fixing seat30is provided with a positioning hole32. The first side of the fixing seat30presses a periphery of the sucker body10and is provided with a receiving chamber34to allow entrance of the sucker body10. The receiving chamber34of the fixing seat30is connected between the recess12of the sucker body10and the positioning hole32of the fixing seat30, and the recess12of the sucker body10is connected between the receiving chamber34of the fixing seat30and the connecting hole13of the sucker body10.

The control valve40includes a valve stem41movably mounted on the fixing seat30and movable to stop the recess12of the sucker body10so as to seal the connecting hole13of the sucker body10and to interrupt a connection between the connecting hole13and the recess12of the sucker body10, and a restoring spring42biased between the valve stem41and the fixing seat30to push the valve stem41toward the recess12of the sucker body10.

The valve stem41of the control valve40is movably mounted in the positioning hole32of the fixing seat30and has a first end provided with an enlarged stop ball411that is movable to stop the recess12of the sucker body10and a second end provided with a pull knob413protruding outwardly from the positioning hole32of the fixing seat30. The pull knob413of the valve stem41has a substantially T-shaped cross-sectional profile and has a thickness greater than a diameter of the positioning hole32of the fixing seat30to prevent the pull knob413of the valve stem41from entering the positioning hole32of the fixing seat30. The stop ball411of the valve stem41has diameter equal to that of the recess12of the sucker body10.

The restoring spring42of the control valve40is mounted on the valve stem41and biased between the stop ball411of the valve stem41and the fixing seat30to push the stop ball411of the valve stem41toward the recess12of the sucker body10.

In operation, referring toFIGS. 3 and 4with reference toFIGS. 1 and 2, the sucker body10initially rests on a surface1, such as a wall. Then, the drive portion52of the control handle50is driven by a user to pivot the control handle50relative to the fixing seat30. In such a manner, the eccentric portion51of the control handle50is pivotable relative to the fixing seat30in an eccentric manner to pull the driven post11of the sucker body10so as to compress the sucker body10toward the fixing seat30, so that the second side of the sucker body10is curved to define a space14between the sucker body10and the surface1as shown inFIG. 3to produce a vacuum suction force so as to attach the sucker body10onto the surface1closely.

At this time, the restoring spring42of the control valve40pushes the stop ball411of the valve stem41toward the recess12of the sucker body10to stop the recess12of the sucker body10so as to seal the connecting hole13of the sucker body10and to interrupt the connection between the connecting hole13and the recess12of the sucker body10to maintain the vacuum suction force in the space14of the sucker body10.

When not in use, the valve stem41of the control valve40is movable outwardly relative to the sucker body10as shown inFIG. 4by pulling the pull knob413of the valve stem41to detach the stop ball411of the valve stem41from the recess12of the sucker body10to connect the connecting hole13of the sucker body10to the recess12of the sucker body10so that the connecting hole13of the sucker body10is connected to the receiving chamber34and the positioning hole32of the fixing seat30via the recess12of the sucker body10. Thus, the ambient air is introduced through the positioning hole32of the fixing seat30, the receiving chamber34of the fixing seat30, the recess12of the sucker body10and the connecting hole13of the sucker body10into the space14of the sucker body10to eliminate the vacuum suction force in the space14of the sucker body10so that the sucker body10can be removed from the surface1easily and quickly.

As shown inFIG. 5, when the sucker body10is still disposed at the vacuum state after the control handle50is returned to the original state, the pull knob413of the valve stem41can be pulled outwardly to break the vacuum state of the sucker body10so that the sucker body10can be removed from the surface1easily and quickly.

Accordingly, the pull knob413of the valve stem41can be pulled outwardly to detach the stop ball411of the valve stem41from the recess12of the sucker body10so as to connect the connecting hole13and the recess12of the sucker body10and to connect the connecting hole13of the sucker body10to the ambient air so as to break the vacuum state of the sucker body10so that the sucker body10can be removed from the surface1easily and quickly. In addition, the sucker body10can be removed from the surface1without having to drive the control handle50, thereby facilitating a user removing the sucker body10from the surface1.