Patent Abstract:
An inflating device comprises a valve body and a gasbag, the valve body being provided with a gas inlet, a gas outlet and a gas storage chamber; the gas inlet has a gas intake valve device provided therein, and the gas outlet has a gas exhaust valve device provided therein; the gas storage chamber is communicated with the gasbag; and the gas inlet is communicated with the gas outlet through a chamber body of the valve body, and the gas storage chamber is communicated with the chamber body. In the invention, gas can be fed into an inflatable product by continually pressing with hands, without requiring electricity or blowing with mouth. The inflating device of the invention is convenient to operate, clean and sanitary. The inflating device of the invention has a small volume and is thus convenient to carry.

Full Description:
FIELD OF THE INVENTION 
       [0001]    The invention relates to an inflating device, and in particular to a device which is simple in structure and convenient to use and can realize manual inflation without requiring other tools. 
       BACKGROUND OF THE INVENTION 
       [0002]    At present, there are many commercially available inflatable products, for example, inflatable toys, swim rings, inflatable pillows, inflatable mattresses and the like. For many small products, for example, inflatable toys and swim rings and the like, blowing with mouth is generally used. While for some large products, for example, inflatable mattresses, an electric inflating device is generally used. For products requiring blowing with mouth, it is not only labor-consuming but also unsanitary. Especially for some inflatable products used in public occasions, for example, inflatable pillows used in coaches, it is very unsanitary to blow with mouth while troublesome if they are inflated by other special instruments. Gas supply devices employing an electric compressor have a great volume and are inconvenient to use, and must be provided with a power supply. This results in great limitation to the inflation of products. 
       SUMMARY OF THE INVENTION 
       [0003]    A technical problem required to be solved by the invention is to provide an inflating device, which has a small volume and a simple structure, is convenient to use without requiring any power supply, and allows for a simple deflating operation. 
         [0004]    The invention may employ the following technical solutions. 
         [0005]    An inflating device is provided, including a valve body and a gasbag, the valve body being provided with a gas inlet, a gas outlet and a gas storage chamber; the gas inlet has a gas intake valve device provided therein, and the gas outlet has a gas exhaust valve device provided therein; the gas storage chamber is communicated with the gasbag; and the gas inlet is communicated with the gas outlet through a chamber body of the valve body, and the gas storage chamber is communicated with the chamber body. 
         [0006]    The invention may further make the following improvement to solve the problem: 
         [0007]    As a further improvement, the gas exhaust valve device includes a gas exhaust valve base having a gas exhaust valve through hole provided therein, and a gas exhaust valve ring is provided in the gas exhaust valve through hole; and the gas exhaust valve ring is connected to a wall of the gas exhaust valve through hole by at least two gas exhaust valve supporting bars, and the gas exhaust valve base, the gas exhaust valve ring and the gas exhaust valve supporting bars are integrated. 
         [0008]    A gas exhaust valve core passes through and is axially moveable in an inner hole of the gas exhaust valve ring; an annular protrusion, which is larger than the inner hole of the gas exhaust valve ring and radially faces outward, is provided on an outer end of the gas exhaust valve core, an inner end of the gas exhaust valve core is connected with a gas exhaust valve raised-bonnet which is larger than the inner hole of the gas exhaust valve ring, and the gas exhaust valve ring is positioned between the annular protrusion and the gas exhaust valve raised-bonnet; a gas exhaust valve spring is provided between the gas exhaust valve raised-bonnet and the gas exhaust valve ring, and the inner end of the gas exhaust valve core passes through the gas exhaust valve spring; and the outer end of the gas exhaust valve core faces outside the valve body, and the inner end of the gas exhaust valve core faces the chamber body of the valve body. As a further improvement, the outer end of the gas exhaust valve core is connected with a gas exhaust valve seal, an annular slope is provided at an outer end of the gas exhaust valve through hole, the shape and size of the annular slope are matched with those of the gas exhaust valve seal, and the gas exhaust valve spring enables the gas exhaust valve seal to seal the gas exhaust valve through hole after coming into close contact with the annular slope. 
         [0009]    As a further improvement, the gas intake valve device includes a gas intake valve base having a gas intake valve through hole provided therein, and a gas intake valve ring is provided in the gas intake valve through hole; and the gas intake valve ring is connected to a wall of the gas intake valve through hole by at least two gas intake valve supporting bars, and the gas intake valve base, the gas intake valve ring and the gas intake valve supporting bars are integrated. 
         [0010]    A gas intake valve core passes through and is axially movable in an inner hole of the gas intake valve ring; an annular protrusion, which is larger than the inner hole of the gas intake valve ring and radially faces outward, is provided on an outer end of the gas intake valve core, an inner end of the gas intake valve core is connected with a gas intake valve raised-bonnet which is larger than the inner hole of the gas intake valve ring, and the gas intake valve ring is positioned between the annular protrusion and the gas intake valve bonnet; a gas intake valve spring is provided between the gas intake valve raised-bonnet and the gas intake valve ring, and the inner end of the gas intake valve core passes through the gas intake valve spring; and the outer end of the gas intake valve core faces the chamber body of the valve body, and the inner end of the gas intake valve core faces outside the valve body. 
         [0011]    As a further improvement, the outer end of the gas intake valve core is connected with a gas intake valve seal, an annular slope is provided at an outer end of the gas intake valve through hole, the shape and size of the annular slope are matched with those of the gas intake valve seal, and the gas intake valve spring enables the gas intake valve seal to seal the gas intake valve through hole after coming into close contact with the annular slope; and the outer end of the gas intake valve through hole faces the chamber body of the valve body, and the inner end of the gas intake valve through hole faces outside the valve body. 
         [0012]    As a further improvement, the gas exhaust valve base is provided with a gas exhaust valve plug-in member, the gas intake valve base is provided with a gas intake valve plug-in member corresponding to and being coordinated with the gas exhaust valve plug-in member, and the gas exhaust valve plug-in member is in plug-in connection to the gas intake valve plug-in member. 
         [0013]    As a further improvement, the gas exhaust valve through hole and the gas intake valve through hole share one axis; there is a gap between the gas exhaust valve raised-bonnet and the gas intake valve seal, the gas intake valve core can move the gas exhaust valve core through the gas intake valve seal to open the gas outlet when the gas intake valve core is pressed in a direction from the gas intake valve through hole to the chamber body of the valve body. 
         [0014]    As a further improvement, an extension portion is provided on an inner side of the gas exhaust valve seal, and the extension portion is an elastomer; one end, far away from the gas exhaust value seal, of the extension portion is a distal end of the extension portion; and the distal end has a bump radially facing outward, the bump is positioned within a slot of the gas exhaust valve core after passing through the inner hole of the gas exhaust valve core, and the bump is larger than the inner hole of the gas exhaust valve core. 
         [0015]    As a further improvement, an extension portion is provided on an inner side of the gas intake valve seal, and the extension portion is an elastomer; one end, far away from the gas inlet value seal, of the extension portion is a distal end of the extension portion; and the distal end has a bump radially facing outward, the bump is positioned within a slot of the gas intake valve core after passing through the inner hole of the gas intake valve core, and the bump is larger than the inner hole of the gas intake valve core. 
         [0016]    As a further improvement, the valve body is constituted of a casing and a side bonnet connected to each other, the gas outlet is arranged within the casing, and the gas inlet is arranged on the side bonnet. As a further improvement, the gas exhaust valve base is provided with a round step, which is positioned within the casing and closely coordinated with an inner wall of the casing. 
         [0017]    As a further improvement, the gasbag is positioned beside the valve body, and the gasbag is positioned beside a central axis of the gas outlet and a central axis of the gas inlet. 
         [0018]    As a further improvement, the inner end of the gas intake valve through hole is detachably connected with a spring fixed lid. 
         [0019]    The technical solutions have the following technical effects: 
         [0020]    1. In the invention, gas may be fed into an inflatable product by continually pressing with hands, without requiring electricity or blowing with mouth. The inflating device of the invention is convenient to operate, clean and sanitary. The invention has a small volume and is thus convenient to carry. The operation will not require any power supply. 
         [0021]    2. The inflating device of the invention has a simple structure and a small volume. The deflating operation is also easy and simple. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0022]      FIG. 1  is a schematic structure diagram of the invention; 
           [0023]      FIG. 2  is a schematic diagram of the invention viewed from another angle of view; 
           [0024]      FIG. 3  is a schematic diagram of the invention when viewed from still another angle of view; 
           [0025]      FIG. 4  is a schematic diagram along a line A-A of  FIG. 3 ; 
           [0026]      FIG. 5  is an exploded diagram of components; 
           [0027]      FIG. 6  is an exploded diagram of the components when viewed from another angle of view; 
           [0028]      FIG. 7  is a schematic diagram of a use state; and 
           [0029]      FIG. 8  is a schematic diagram of another use state. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0030]    The invention will be described below in detail by a specific embodiment. 
       Embodiment 
       [0031]    As shown in  FIGS. 1, 2, 3, 4, 5, 6, 7 and 8 , an inflating device is provided, including a valve body  1  and a gasbag  2 , the valve body  1  being provided with a gas inlet  101 , a gas outlet  102  and a gas storage chamber  103 ; the gas inlet  101  has a gas intake valve device  400  provided therein, and the gas outlet  102  has a gas exhaust valve device  300  provided therein; the gas storage chamber  103  is communicated with the gasbag  2 . The gas inlet  101  is communicated with the gas outlet  102  through a chamber body  104  of the valve body  1 , and the gas storage chamber  103  is communicated with the chamber body  104 . In this embodiment, the gasbag  2  is a sphere when in a natural state. 
         [0032]    The gas exhaust valve device  300  includes a gas exhaust valve base  310  having a gas exhaust valve through hole  311  provided therein, and a gas exhaust valve ring  312  is provided in the gas exhaust valve through hole  311 ; the gas exhaust valve ring  312  is connected to a wall of the gas exhaust valve through hole  311  by at least two gas exhaust valve supporting bars  313 , and the gas exhaust valve base  310 , the gas exhaust valve ring  312  and the gas exhaust valve supporting bars  313  are integrated. In this embodiment, there are three gas exhaust valve supporting bars  313 . Of course, there may be two or more gas exhaust valve supporting bars  313 . 
         [0033]    The gas exhaust valve core  320  passes through and may be axially moveable in an inner hole  314  of the gas exhaust valve ring  312 . An annular protrusion  312 , which is larger than the inner hole  314  of the gas exhaust valve ring and radially faces outward, is provided on an outer end of the gas exhaust valve core  320 , an inner end of the gas exhaust valve core  320  is connected with a gas exhaust valve raised-bonnet  322  which is larger than the inner hole  314  of the gas exhaust valve ring  312 , and the gas exhaust valve ring  312  is positioned between the annular protrusion  321  and the gas exhaust valve raised-bonnet  322 ; a gas exhaust valve spring  330  is provided between the gas exhaust valve raised-bonnet  322  and the gas exhaust valve ring  312 , and the inner end of the gas exhaust valve core  320  passes through the gas exhaust valve spring  330 ; and the outer end of the gas exhaust valve core  320  faces outside the valve body  1 , and the inner end of the gas exhaust valve core  320  faces the chamber body  104  of the valve body  1 . 
         [0034]    The outer end of the gas exhaust valve core  320  is connected with a gas exhaust valve seal  340 , an annular slope  315  is provided at an outer end of the gas exhaust valve through hole  311 , the shape and size of the annular slope  315  are matched with those of the gas exhaust valve seal  340 , and the gas exhaust valve spring  330  enables the gas exhaust valve seal  340  to seal the gas exhaust valve through hole  311  after coming into close contact with the annular slope  315 . In this embodiment, the gas exhaust valve seal is, just like a conventional seal, made of elastic plastic. 
         [0035]    The gas intake valve device  400  includes a gas intake valve base  410  having a gas intake valve through hole  411  provided therein, and a gas intake valve ring  412  is provided in the gas intake valve through hole  411 ; and the gas intake valve ring  412  is connected to a wall of the gas intake valve through hole  411  by at least two gas intake valve supporting bars  413 , and the gas intake valve base  410 , the gas intake valve ring  412  and the gas intake valve supporting bars  413  are integrated. 
         [0036]    A gas intake valve core  420  passes through and may be axially movable in an inner hole  414  of the gas intake valve ring  412 ; an annular protrusion  421 , which is larger than the inner hole  414  of the gas intake valve ring  412  and radially faces outward, is provided on an outer end of the gas intake valve core  420 , an inner end of the gas intake valve core  420  is connected with a gas intake valve raised-bonnet  422  which is larger than the inner hole  414  of the gas intake valve ring  412 , and the gas intake valve ring  412  is positioned between the annular protrusion  421  and the gas intake valve bonnet  422 . A gas intake valve spring  430  is provided between the gas intake valve raised-bonnet  422  and the gas intake valve ring  412 , and the inner end of the gas intake valve core  420  passes through the gas intake valve spring  430 ; and the outer end of the gas intake valve core  420  faces the chamber body  104  of the valve body, and the inner end of the gas intake valve core  420  faces outside the valve body  1 . 
         [0037]    The outer end of the gas intake valve core  420  is connected with a gas intake valve seal  440 , an annular slope  415  is provided at an outer end of the gas intake valve through hole  411 , the shape and size of the annular slope  415  are matched with those of the gas intake valve seal  440 , and the gas intake valve spring enables the gas intake valve seal  440  to seal the gas intake valve through hole  411  after coming into close contact with the annular slope  415 ; and the outer end of the gas intake valve through hole  411  faces the chamber body  104  of the valve body  1 , and the inner end of the gas intake valve through hole  411  faces outside the valve body  1 . In this embodiment, the gas intake valve seal is, just like a conventional seal, made of plastic. 
         [0038]    The inner end of the gas intake valve through hole  411  is connected with a lid  5  which is used for preventing the gas within an object to be inflated from leaking. 
         [0039]    The gas exhaust valve through hole  311  and the gas intake valve through hole  411  share one axis; there is a gap between the gas exhaust valve raised-bonnet  322  and the gas intake valve seal  440 , the gas intake valve core  420  can move the gas exhaust valve core  320  through the gas intake valve seal  440  to open the gas outlet when the gas intake valve core  420  is pressed in a direction from the gas intake valve through hole  411  to the chamber body of the valve body. 
         [0040]    The valve body  1  is constituted of a casing  105  and a side bonnet  106  connected to each other, the gas outlet  102  is arranged within the casing  105 , and the gas inlet  101  is arranged on the side bonnet  106 . 
         [0041]    The gas exhaust valve base  310  is provided with a round step  316  which is positioned within the casing  105  and closely fitted with an inner wall of the casing  105 . 
         [0042]    The gas exhaust valve base  310  is provided with a gas exhaust valve plug-in member  7 , the gas intake valve base  320  is provided with a gas intake valve plug-in member  8  corresponding to and being coordinated with the gas exhaust valve plug-in member  7 , and the gas exhaust valve plug-in member is in plug-in connection to the gas intake valve plug-in member  8 ; and a hole  81  is formed on the gas intake valve plug-in member  8 , and the gas exhaust valve plug-in member is inserted into the hole  81  of the gas intake valve plug-in member to realize the plug-in connection. In this way, it is conducive to positioning and fixing the two bases. 
         [0043]    As a further improvement, an extension portion  341  is provided on an inner side of the gas exhaust valve seal  340 , and the extension portion  341  is an elastomer; one end, far away from the gas exhaust value seal  340 , of the extension portion  341  is a distal end of the extension portion  341 ; and the distal end has a bump  342  radially facing outward, the bump  342  is positioned within a slot  324  of the gas exhaust valve core after passing through the inner hole  323  of the gas exhaust valve core  320 , and the bump  342  is larger than the inner hole  323  of the gas exhaust valve core  320 . With such a structure, the connection between the gas exhaust valve seal and the gas exhaust valve core is realized, and the assembly and disassembly are convenient and fast. 
         [0044]    An extension portion  441  is provided on an inner side of the gas intake valve seal  440 , and the extension portion  441  is an elastomer; one end, far away from the gas intake value seal  440 , of the extension portion  441  is a distal end of the extension portion  441 ; and the distal end has a bump  442  radially facing outward, the bump  442  is positioned within a slot  424  of the gas intake valve core after passing through the inner hole  423  of the gas intake valve core  420 , and the bump  442  is larger than the inner hole  423  of the gas intake valve core  423 . With such a structure, the connection between the gas intake valve seal and the gas intake valve core is realized, and the assembly and disassembly are convenient and fast. 
         [0045]    The gasbag  2  is positioned beside the valve body  1 , and the gasbag  2  is positioned beside a central axis of the gas outlet  102  and a central axis of the gas inlet  101 . 
         [0046]      FIG. 7  and  FIG. 8  are schematic diagrams of a use state when gas is being fed. The object  9  is an object to be inflated. During the use, the gas exhaust valve base  310  is connected to the object  9  to be inflated in a sealed manner. 
         [0047]    During the inflation, the lid  5  may be opened, the gasbag  2  is pressed and the gas pressure inside the chamber body  104  is thus increased, and the gas intake valve seal  440  firmly presses the annular slope  415  due to the gas pressure, so that the gas inlet  101  is kept closed; and the gas pressure acts on the gas exhaust valve spring fixing lid  322 , so that the body of the gas exhaust valve core  320  moves outward against the elasticity of the gas exhaust valve spring  330 . In this way, a gap is formed between the gas exhaust valve seal  340  and the annular slope  315 , and the gas in the gasbag  2  is fed into the object to be inflated from the gap after passing through the gas storage chamber  103 , the chamber body  104  and the gas outlet  102 . The gasbag  2  expands outward when it is released. At this time, the negative pressure effect occurs, the gas exhaust valve seal  340  and the annular slope  315  are firmly closed, and the gas outlet  102  is closed; and the gas intake valve core  420  moves towards the gas exhaust valve core  320  against the elasticity of the gas intake valve spring  430  due to the ambient pressure. At this time, a gap is formed between the gas intake valve seal  440  and the annular slop  415 , and the external gas enters the chamber body  104  from the gas inlet  101  and then enters the gasbag  2  after passing through the gas storage chamber  103  until the gasbag  2  expands to the natural state. Then, the gasbag  2  is pressed again, and the gas will be fed into the object to be inflated. Gas is continuously fed by repeating this process. The inflating device of the invention has a small volume and a simple structure, and is convenient to use. The manual operation is easy. 
         [0048]    To deflate an object, the gas intake valve spring fixing lid  422  is pressed, so that the gas intake valve core moves towards the gas exhaust valve core  320  against the elasticity of the gas intake valve spring  430 . At this time, a gap is formed between the gas intake valve seal  440  and the annular slope  415 . Meanwhile, the gas intake valve seal  440  bears against the gas exhaust valve spring fixing lid  322 , so that the gas exhaust valve core  320  moves outward against the elasticity of the gas exhaust valve spring  330 . In this way, a gap is formed between the gas exhaust valve seal  340  and the annular slope  315 , and the gas in the object to be deflated comes out from the gap after passing through the gas outlet and the gas inlet, the deflating is thus realized. The deflating is convenient, the manual control is simple, the manufacture is easy, and it is convenient to adjust the gas pressure of inflatable products and to deflate the inflatable products. 
         [0049]    What described above is merely a preferred embodiment of the invention and not intended to limit the invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the invention should fall into the protection scope of the invention.

Technology Classification (CPC): 5