Abstract:
An inflatable product includes an inflatable body, a socket, an electric pump and a battery case. The socket is built in the inflatable body. The electric pump is detachably connected to the socket to pump the inflatable body. The battery case is also built in the inflatable body for receiving batteries to supply the electric pump with power.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates in general to an inflatable product provided with a built-in battery case and socket. 
     2. Description of the Related Art 
     Referring to FIGS. 1A and 1B, a conventional electric pump  14  for inflating an airbed has a fan and motor  142  inside. A plurality of batteries  144  are loaded into the electric pump  14  to supply the power. The airbed  10  is provided with a valve  12 . In operation, the electric pump  14  is moved in direction B to connect the valve  12  and then rotated in direction A to fasten the connection between the electric pump  14  and the airbed  10 . 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a modified airbed, which is inflated and deflated in a different way. 
     The airbed of the present invention includes an inflatable body, a socket, an electric pump and a battery case. The socket is built in the airbed. The electric pump is detachably connected to the socket to pump the airbed. The battery case is also built in the airbed for receiving batteries to supply the electric pump with power. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein: 
     FIG. 1A depicts a conventional airbed; 
     FIG. 1B is a sectional view along line I—I in FIG. 1A; 
     FIG. 2 locally depicts an airbed in accordance with a first embodiment of the present invention; 
     FIG. 3A shows the inflating operation of the airbed of the first embodiment; 
     FIG. 3B shows the deflating operation of the airbed of the first embodiment; 
     FIG. 4 locally depicts an airbed in accordance with a second embodiment of the present invention; 
     FIG. 5 is a perspective diagram of the electric pump of the second embodiment; 
     FIGS. 6A,  6 B and  6 C show the inflating operation of the airbed of the second embodiment; 
     FIGS. 7A and 7B show the deflating operation of the airbed of the second embodiment. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIG. 2, an airbed  26  of a first embodiment of the present invention is provided with a detachable electric pump  20 , a built-in battery case  22  and a built-in socket  24 . The battery case  22  has a cover  221  on which electrodes  222  are provided. Also, on the bottom of the battery case  22  are provided electrodes  223  corresponding to the electrodes  222  of the cover  221 . An O-ring  244  and an electrode  242  are provided on the inner wall of the socket  24 , wherein the electrode  242  is electrically connected to the electrodes  222 ,  223  of the battery case  22 . Furthermore, the electric pump  20  is substantially cylindrical and has an electrode  202  on its side surfaces, an air inlet  204  and an air outlet  206  on its ends and a check valve  208  inside. The check valve  208  of the electric pump allows air to flow in a single direction from the inlet  204  to the outlet  206 . 
     In operation, batteries are loaded into the battery case  22 . The electric pump  20  is fitted into the socket  24  and then rotated so that the electrode  202  of the electric pump  20  contacts the electrode  242  of the socket  24 . Then, the electric pump  20  is actuated to pump outside air into the airbed  26  as shown in FIG.  3 A. The O-ring  242  in the socket  24  prevents the airbed  26  from leaking. In deflating operation, the user detaches the electric pump  20  from the socket  24  to deflate the airbed  26 , as shown in FIG.  3 B. 
     It is understood that the O-ring can be provided on the side surfaces of the electric pump  20  instead of in the socket  24  to prevent the airbed from leaking. 
     Referring to FIG. 4, an airbed of a second embodiment of the present invention is provided with a detachable electric pump  30 , a cap  37  for the electric pump  30 , a built-in battery case  32  and a built-in socket  34 . The battery case  32  has a cover  321  on which electrodes  322  are provided. Also, on the bottom of the battery case  32  are provided electrodes  323  corresponding to the electrodes  322  of the cover  321 . Furthermore, an arrow symbol  36  is marked on the airbed and besides the socket  34 . Flanges  342  are formed at the rim of the socket  34 , while electrodes  344  are provided on the inner wall of the socket  34  and are electrically connected to the electrodes  322 ,  323  of the battery case  32 . Furthermore, the electric pump  30  is substantially cylindrical and has a flange  301  on its side surfaces, two electrodes  302  provided on the flange  301 , an air inlet  304  and an air outlet  306  on its ends. Also referring to FIG. 5, symbols “on”, “off” and “open” are marked on the side surfaces and the end of the electric pump  30 . 
     In operation, batteries are loaded into the battery case  32  to supply the electric pump  30  with the power. The electric pump  30  in this embodiment is used to inflate or deflate the airbed. In inflating operation, the electric pump  30  is fitted into the socket  34  with the air outlet  306  inside the airbed and the air inlet  304  outside the airbed. The electric pump  30  is rotated to change the positions of symbols “on”, “off” and “open”. When the arrow symbol  36  points at the symbol “on” as shown in FIG. 6A, the electrodes  302  of the electric pump  30  contact the electrodes  344  of the socket  34  to actuate the electric pump  30 . Then, outside air is pumped into the airbed as shown in FIG.  6 B. When the arrowsymbol  36  points at the symbol “off”, the electric pump  30  is stopped. When the arrow symbol  36  points at the symbol “open”, the electric pump  30  is detachable from the socket  34 . FIG. 6C depicts the airbed full of air, wherein the air outlet of the electric pump  30  is closed by the cap  37  to seal the airbed after the inflating operation. 
     In deflating operation, the electric pump  30  is reversely fitted into the socket  34 , with the air inlet  304  inside the airbed and the air outlet  306  outside the airbed. The electric pump  30  is rotated to change the positions of symbols “on”, “off” and “open” on its side surfaces. When the arrow symbol  36  points at the symbol “on” as shown in FIG. 7A, the electrodes  302  of the electric pump  30  contact the electrodes  344  of the socket  34  to actuate the electric pump  30 . Then, air inside the airbed is pumped out as shown in FIG.  7 B. When the arrow symbol  36  points at the symbol “off”, the electric pump  30  is stopped. When the arrow symbol  36  points at the symbol “open”, the electric pump  30  is detachable from the socket  34 . 
     In either of the inflating and deflating operations, the flanges  342  of the socket  34  are used for confining the flange  301  of the electric pump  30 , thus preventing the electric pump  30  from separating with the socket  34  when the arrow symbol  36  points at the symbols “on” and “off”. However, the flanges  342  are spaced apart at the rim of the socket  34  to avoid confining the flange  301  of the electric pump  30  when the arrow symbol  36  points at the symbol “open”. Thus, the electric pump  30  is detachable from the socket  34  when the arrow symbol  36  points at the symbol “open”. 
     While the invention has been described by way of example and in terms of the preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.