Patent Publication Number: US-6666205-B1

Title: Upright heating burner having a heatsink device background of the invention

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention The present invention relates to an upright heating burner having a heatsink device, and more particularly to an upright heating burner having a heatsink device that can enhance the heatsink efficiency. 
     2. Description of the Related Art 
     A conventional upright heating burner in accordance with the prior art shown in FIGS. 1 and 2 comprises a gas container  10 , an upright tube  11 , a protective net  15 , and a conic cover  16 . However, the protective net  15  and the conic cover  16  are heated during a period of time of use, thereby easily injuring the user due to contacting the protective net  15  or the conic cover  16 . In addition, the conventional upright heating burner does not have any heatsink device, thereby greatly decreasing the heatsink effect thereof. 
     SUMMARY OF THE INVENTION 
     The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional upright heating burner. 
     The primary objective of the present invention is to provide an upright heating burner having a heatsink device that can enhance the heatsink efficiency. 
     Another objective of the present invention is to provide an upright heating burner having a heatsink device that can enhance the safety of usage and operation. 
     A further objective of the present invention is to provide an upright heating burner having a heatsink device, wherein the fan unit of the heatsink device is driven by the heated air to rotate on the shaft automatically, so as to diffuse the heated air outward wholly and completely, thereby efficiently achieving the heatsink effect. 
     A further objective of the present invention is to provide an upright heating burner having a heatsink device, wherein the protective fence encompasses the air guide cylinder and the conic fence encompasses the heatsink device, so as to prevent the user from contacting the air guide cylinder at a high temperature and the heatsink device during rotation, thereby enhancing the safety of usage and operation of the upright heating burner. 
     In accordance with the present invention, there is provided an upright heating burner having a heatsink device, comprising an upright stand, an upright tube, a burner, an air guide cylinder, and a heatsink device, wherein: 
     the upright tube is mounted on a top of the upright stand; 
     the burner is mounted on a top of the upright tube; 
     the air guide cylinder is mounted on a top of the burner; 
     the heatsink device is mounted on a top of the air guide cylinder and includes an annular support seat, a shaft, and a fan unit, wherein: 
     the support seat is mounted on the top of the air guide cylinder and has an upper portion formed with a support plate having a plurality of radially extended ribs; 
     the shaft is mounted on the upper portion of the support seat of the heatsink device; and 
     the fan unit is rotatably mounted on the shaft and includes an upper frame rotatably mounted on an upper end of the shaft, a lower frame rotatably mounted on a lower end of the shaft, and a plurality of helical blades each mounted between the upper frame and the lower frame. 
    
    
     Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of a conventional upright heating burner in accordance with the prior art; 
     FIG. 2 is a locally enlarged schematic operational view of the conventional upright heating burner having a heatsink device as shown in FIG. 1 in use; 
     FIG. 3 is a partially exploded perspective view of an upright heating burner having a heatsink device in accordance with a preferred embodiment of the present invention; 
     FIG. 4 is a perspective assembly view of the upright heating burner having a heatsink device in accordance with the preferred embodiment of the present invention; 
     FIG. 5 is an exploded perspective view of a heatsink device of the upright heating burner having a heatsink device in accordance with the preferred embodiment of the present invention; 
     FIG. 6 is a side plan cross-sectional assembly view of the heatsink device of the upright heating burner having a heatsink device as shown in FIG. 5; and 
     FIG. 7 is a locally enlarged plan schematic operational view of the upright heating burner having a heatsink device as shown in FIG. 4 in use. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to the drawings and initially to FIGS. 3 and 4, an upright heating burner having a heatsink device in accordance with a preferred embodiment of the present invention comprises an upright stand  50 , an upright tube  51 , a burner  52 , a protective fence  53 , an air guide cylinder  54 , a conic fence  55 , a conic cover  56 , and a heatsink device  60 . 
     The upright stand  50  is provided with a gas container  500 . 
     The upright tube  51  is mounted on a top of the upright stand  50  for conveying the gas. The upright tube  51  has a heat insulation effect. The upright tube  51  has a top having a periphery formed with a plurality of insertion holes  510 . 
     The burner  52  is mounted on the top of the upright tube  51 . 
     The protective fence  53  is mounted on the top of the upright tube  51  and has a bottom formed with a plurality of insertion posts  530  each inserted into a respective one of the insertion holes  510  of the upright tube  51 . 
     The air guide cylinder  54  is mounted on a top of the burner  52  and is located in the protective fence  53 . The air guide cylinder  54  has a lower portion formed with a plurality of ventilating holes  541  and an upper portion formed with a plurality of through holes  540 . 
     The conic fence  55  is mounted on a top of the protective fence  53 . The conic fence  55  has a bottom formed with a plurality of retaining posts  552  each rested on an inner wall of the top of the protective fence  53 , so that the conic fence  55  is secured on the top of the protective fence  53 . The conic fence  55  has a top formed with a plurality of insertion posts  550 . 
     The conic cover  56  is mounted on a top of the conic fence  55 . The conic cover  56  has a periphery of snapping members  560  each snapped on a respective one of the insertion posts  550  of the conic fence  55 , so that the conic cover  56  is secured on the top of the conic fence  55 . 
     The heatsink device  60  is mounted on a top of the air guide cylinder  54 , and is located in the conic fence  55 . 
     As shown in FIGS. 5 and 6 with reference to FIGS. 3 and 4, the heatsink device  60  includes an annular support seat  61 , a hollow protective sleeve  64 , a shaft  65 , a fan unit  68 , and a bushing  69 . 
     The support seat  61  of the heatsink device  60  is mounted on the top of the air guide cylinder  54 . The support seat  61  of the heatsink device  60  has a lower portion formed with an enlarged mounting sleeve  62  mounted on the top of the air guide cylinder  54  and formed with a plurality of through holes  620  combined with the through holes  540  of the air guide cylinder  54  by a plurality of screws  622  and a plurality of nuts  624 , so that the mounting sleeve  62  of the support seat  61  of the heatsink device  60  is fixed on the top of the air guide cylinder  54 . The support seat  61  of the heatsink device  60  has an upper portion formed with a support plate  63  having a plurality of radially extended ribs  630 . 
     The support plate  63  of the support seat  61  of the heatsink device  60  is formed with two through holes  631 . 
     The protective sleeve  64  of the heatsink device  60  is mounted on a bottom of the support plate  63  of the support seat  61  of the heatsink device  60 . The protective sleeve  64  of the heatsink device  60  is formed with two through holes  640  combined with the through holes  631  of the support plate  63  of the support seat  61  of the heatsink device  60  by two screws  632  and two nuts  641 , so that the protective sleeve  64  of the heatsink device  60  is fixed on the bottom of the support plate  63  of the support seat  61  of the heatsink device  60 . 
     The shaft  65  of the heatsink device  60  is mounted on the upper portion of the support seat  61  of the heatsink device  60 . The shaft  65  of the heatsink device  60  is fixed on the support plate  63  of the support seat  61  of the heatsink device  60  by a plurality of washers  650  and a screw  651 . 
     The fan unit  68  of the heatsink device  60  is rotatably mounted on the shaft  65  of the heatsink device  60 . The fan unit  68  of the heatsink device  60  includes an upper frame  66  rotatably mounted on an upper end of the shaft  65  of the heatsink device  60 , a lower frame  67  rotatably mounted on a lower end of the shaft  65  of the heatsink device  60 , and a plurality of helical blades  680  each mounted between the upper frame  66  and the lower frame  67 . Thus, when the heated air reaches the fan unit  68  of the heatsink device  60 , the fan unit  68  of the heatsink device  60  is rotated on the shaft  65  automatically. 
     The bushing  69  of the heatsink device  60  is mounted on the upper frame  66  of the fan unit  68  of the heatsink device  60  and is rotatably mounted on the upper end of the shaft  65  of the heatsink device  60  to enhance rotation of the fan unit  68  of the heatsink device  60 . 
     In operation, referring to FIGS. 6 and 7 with reference to FIGS. 3-5, after the burner  52  on the top of the upright tube  51  is started, the heated air is produced. The heated air is partially conveyed outward from the ventilating holes  541  of the air guide cylinder  54 . Most of the heated air is guided to move upward to the heatsink device  60 . In such a manner, the heated air flows upward, and the helical blades  680  of the fan unit  68  of the heatsink device  60  is reduced upward, so that the fan unit  68  of the heatsink device  60  is driven by the heated air to rotate on the shaft  65  automatically, so as to diffuse the heated air outward wholly and completely, thereby efficiently achieving the heatsink effect. 
     In addition, the protective fence  53  encompasses the air guide cylinder  54  and the conic fence  55  encompasses the heatsink device  60 , so as to prevent the user from contacting the air guide cylinder  54  at a high temperature and the heatsink device  60  during rotation, thereby enhancing the safety of usage and operation of the upright heating burner. 
     While the preferred embodiment(s) of the present invention has been shown and described, it will be apparent to those skilled in the art that various modifications may be made in the embodiment(s) without departing from the spirit of the present invention. Such modifications are all within the scope of the present invention.