A suction cup, including a flat framework, a suction cup body covering the framework, a connection rod disposed on the back surface of the framework and passing through the cup body, a cup cover covering the connection rod and the cup body, and a pressing element provided on the back surface of the
A suction cup, including a flat framework, a suction cup body covering the framework, a connection rod disposed on the back surface of the framework and passing through the cup body, a cup cover covering the connection rod and the cup body, and a pressing element provided on the back surface of the cup cover and in connection with the connection rod, a seal element on the adsorption surface of the cup body, and an annular protruding ring on the inner surface of the cup cover at a location corresponding to the seal element for touch pressing the inner surface of the cup body against the seal element. The invention uses rigid force transfer, and thus the force transfer is more effective. The sealing element enhances the airtightness of the suction cavity and increases the absorption force of the suction cup. When pulling the connection rod, due to the existence of the sealing element, the air cannot easily enter the suction cavity, and because before the pulling the framework is in a flat state, it can produces a high degree of vacuum and thus adsorption force so that the suction cup will not fall off the supporting surface easily. Furthermore, the suction cup of the invention is structurally simple with a lower manufacturing cost.
대표청구항▼
1. A suction cup, comprising: a substantially flat framework, a cup body covering said substantially flat framework, a cup cover including a circular flat to portion adjacent to a concave outer portion; wherein said cup cover covering said cup body,a pressing element on said cup cover,a connection r
1. A suction cup, comprising: a substantially flat framework, a cup body covering said substantially flat framework, a cup cover including a circular flat to portion adjacent to a concave outer portion; wherein said cup cover covering said cup body,a pressing element on said cup cover,a connection rod passing through both said cup cover and the top layer of said cup body and connected to said substantially flat framework,a seal element and at least one protruding ring extending from an inner surface of said cup cover,wherein said cup body comprises an adsorption surface with a recess to accommodate said seal element to reduce a distance between said seal element and said at least one protruding ring to receive a pressing force therefrom, andwherein said substantially flat framework extends radially with a peripheral sandwiched between said seal element and said at least one protruding ring to form a rigid configuration for transferring said pressing force from said at least one protruding ring to said seal element,a plurality of annularly distributed protruding ribs around an inner surface area of said peripheral of said substantially flat framework, anda plurality of through holes, corresponding to said annularly distributed protruding ribs, in said cup body for said annularly protruding ribs to extend through said through holes so that said at least one protruding ring of said cup cover and said annularly protruding ribs of said substantially flat framework are in direct contact to transfer said pressing force from said at least one protruding ring. 2. The suction cup according to claim 1, wherein said annular protruding ribs comprise two concentric circles, an inner protruding rib circle and an outer protruding rib circle enclosing said inner protruding rib circle, said annular protruding ring is in a form of two concentric ring elements comprisingan inner protruding ring element and an outer protruding ring element positioned corresponding to said inner protruding rib circle and outer protruding rib circle, respectively, so that when a force is applied to said pressing element, said force pulls said connection rod and deforms said cup body in its central area to form a vacuum cavity thereunder while at the same time said force is also transferred from said inner and outer annular protruding ring elements of said cup cover to said inner and outer annular protruding rib circles of said substantially flat framework to counteract on said cup body and limit its deformation in its peripheral area above said seal element so that said seal element in said adsorption surface remains pressed against an attachment surface. 3. The suction cup according to claim 2, further comprising a central protruding ring on the inner surface of said cup cover, enclosed within said inner protruding ring element. 4. The suction cup according to claim 3, wherein an outer side of said central protruding ring is aligned vertically with an inner side of said recess when the suction cup in a suction state. 5. The suction cup according to claim 4, wherein said seal element is protruding from the adsorption surface of said cup body and there is an annular friction surface formed on the adsorption surface outside said seal element. 6. The suction cup according to claim 5, wherein said recess is in a form of an annular groove on the adsorption surface of said cup body and said seal element is installed in said groove and protrudes out of an opening of said groove. 7. The suction cup according to claim 6, wherein said seal element has a higher bonding strength than a bonding strength of said cup body.
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Pao Ching Huang TW, Bath towel hanger base with a strong suction disc.
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