Built-in electrical inflating and deflating pump for inflatable product
A built-in electrical inflating and deflating pump for inflatable product includes an air-pump, a panel, a housing and a base. The inlet of the air-pump is provided with an inlet hole communicated with external space and an inlet hole communicated with an internal space of an inflatable product respectively, the outlet of the air-pump is provided with an outlet hole communicated with external space and an outlet hole communicated with the internal space respectively as well. The first valve sheet is provided between two inlet holes, the second valve sheet is provided between two outlet holes, and each of these two valve sheets is moved between the respective corresponding inlet holes or outlet holes under the control of the valve pole and the valve sheet transmission-control device to open or close their respective corresponding inlet holes or outlet holes. The advantage of the present invention is to provide a built-in air-pump which is unnecessary to be removed and can quickly inflate an inflatable product, and quickly deflate the same as well.
Latest Bestway (USA) Inc., a corporation of Delaware Patents:
The present invention relates to a built-in electrical inflating and deflating pump for inflatable product, that is, to a built-in electrical inflating and deflating pump for inflating or deflating an inflatable product such as an air bed and the like.
Conventional built-in air-pump for inflatable product comprises a base fixed in an inflatable product, an air-pump capable of being screwed into the base and a cover for closing air-inlet of the air-pump. Electrodes are provided in the base and the air-pump. When inflating, an outlet of the air-pump is screwed into the base with its inlet facing outwards, and the air pump is screwed to power it on to inflate. When deflating, an inlet of the air-pump is screwed into the base with its outlet facing outwards, and the air pump is screwed to power it on to deflate. This kind of built-in air-pump has the following drawbacks: (1) inconvenient operation in three aspects: (i) it is necessary to screw the air-pump off the base first and then screw the same in a reverse orientation when the air-pump is switched from inflation to deflation or vice versa, (ii) it's required to screw the air pump with large volume, in addition a considerable rotational resistance due to an O-ring in the base results in a tightening feeling, (iii) a cover must be turned onto an inlet of the air-pump to prevent air-leaking after inflation is completed; (2) air-leaking tends to occur in the place where the pump body of the air pump is screwed onto the O-ring of the base.
SUMMARY OF THE INVENTIONThe object of the present invention is to overcome the drawbacks of the prior art and to provide a built-in inflating and deflating pump unnecessary to be removed from inflatable product. The invention comprises an air-pump, a panel, a housing and a base, characterized in that the air-pump comprises a first valve sheet, a second valve sheet and a valve sheet transmission-control device; the inlet of said air-pump is provided with an inlet hole communicated with external space and an inlet hole communicated with an internal space of an inflatable product respectively, the outlet of said air-pump is provided with an outlet hole communicated with external space and an outlet hole communicated with an internal space of an inflatable product respectively as well; said first valve sheet is provided between two inlet holes of the inlet, said second valve sheet is provided between two outlet holes of the outlet, and each of these two valve sheet is connected with the valve sheet transmission-control device via a valve pole and moves between the respective corresponding inlet holes or outlet holes under the control of the valve sheet transmission-control device to open or close the respective corresponding inlet holes or outlet holes; the valve sheet transmission-control device includes a handle mounted on the housing and connected with a cam via a transmission pole; the cam of the valve sheet transmission-control device consists of an inner cam and an outer cam; provided on the periphery of the inner cam is a flange, the upper surface of which includes a plane surface and a V-shaped surface; provided on the top of each of the valve poles, which the valve sheets are mounted to, is an Γ-shaped sliding hook which is embedded in the flange of the inner cam and positioned by the outer cam nested out; each of these two valve sheets is moved axially as the sliding hook slides along the flange of the inner cam; the valve poles are positioned by two valve frames respectively; there is a space length between said two inlet holes which are in the same axial direction, there is a space length between said two outlet holes which are the same axial direction, so that two valve sheets are moved axially between two inlet holes and two outlet holes to open or close the corresponding inlet holes or outlet holes respectively as the sliding hooks slide along the flange of the inner cam. When inflating, the first valve sheet is moved to the outlet hole communicated with external space to close the same and open another-outlet hole communicated with an internal space of an inflatable product, the second valve sheet is moved to the inlet hole communicated with the internal space to close the same and open another inlet hole communicated with external space; when deflating, the first valve sheet is moved to the outlet hole communicated with the internal space to close the same and open another outlet hole communicated with external space, the second valve sheet is moved to the inlet hole communicated with external space to close the same and open another inlet hole communicated with the internal space; when the air-pump is shut-off, the first valve sheet and the second valve sheet close the inlet hole communicated with external space and the outlet hole communicated with external space respectively.
The advantage of the present invention is to provide a built-in air-pump which is unnecessary to be removed and has a simple operation and excellent sealing effect, which can quickly inflate an inflatable product and quickly deflate the same as well.
BRIEF DESCRIPTION OF THE DRAWINGS
The preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in
As for the two valve sheets, first valve sheet 5 is provided between inlet hole 31 and inlet hole 41, second valve sheet 6 is provided between outlet hole 32 and outlet hole 42; these two valve sheets are circular sheets and have size and shape fit to those of inlet holes 31, 41 and outlet holes 32, 42 respectively; O-rings 43 are provided in the openings of inlet hole 41 and outlet hole 42 via retaining rings 44; first valve sheet 5 and second valve sheet 6 are connected with valve pole 51 and valve pole 61 respectively, first valve sheet 5 is in the same axial direction as inlet hole 31 and inlet hole 41, and second valve sheet 6 is in the same axial direction as outlet hole 32 and outlet hole 42. Valve pole 51 and valve pole 61 are mounted in valve frame 34 and valve frame 35 respectively, so that these valve poles are positioned without shaking around.
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Claims
1. A built-in electrical inflating and deflating pump for inflatable product, comprising: an air-pump, a panel, a house housing and a base, characterized in that the air-pump comprises a first valve sheet, a second valve sheet and a valve sheet transmission-control device; the inlet of said air-pump is provided with an inlet hole communicated with external space and an inlet hole communicated with an internal space of an inflatable product respectively, the outlet of said air-pump is provided with an outlet hole communicated with external space and an outlet hole communicated with the internal space respectively as well; said first valve sheet is provided between two inlet holes of the inlet, said second valve sheet is provided between two outlet holes of the outlet, and each of these two valve sheets is connected with the valve sheet transmission-control device via a valve pole and moves between the respective corresponding inlet holes or outlet holes under the control of the valve sheet transmission-control device to open or close the respective corresponding inlet holes or outlet holes; said valve sheet transmission-control device comprises a handle mounted on the housing and connected with a cam.
2. The built-in electrical inflating and deflating pump for inflatable product according to claim 1, wherein said cam of the valve sheet transmission-control device consists of an inner cam and an outer cam; provided on the periphery of the inner cam is a flange, the surface of which including a plane surface and a V-shaped surface, provided on the top of each of the valve poles, which the valve sheets are mounted to, is an Γ-shaped sliding hook which is embedded in the flange of the inner cam and positioned by the outer cam nested out; the valve poles are positioned by two valve frames respectively.
3. The built-in electrical inflating and deflating pump for air-inflation product according to claim 1, wherein there is a space length between said two inlet holes which are in the same axial direction, these two inlet holes are circular holes, each of which has a same diameter fit to the diameter of the first valve sheet and is provided with an O-ring via a retaining ring; there is a space length between said two outlet holes which are in the same axial direction, these two outlet holes are circular holes, each of which has a same diameter fit to the diameter of the second valve sheet and is provided with an O-ring via a retaining ring.
Type: Application
Filed: Dec 23, 2005
Publication Date: Oct 5, 2006
Applicant: Bestway (USA) Inc., a corporation of Delaware (Carson, CA)
Inventor: Feng Liu (Shanghai)
Application Number: 11/317,836
International Classification: F04B 17/00 (20060101); F04B 7/00 (20060101);