Vacuuming and inflating bag sealer

Abstract

A bag sealer that can vacuum or inflate the plastic bags to be sealed. It is especially for domestic use. This bag sealer comprises the body, top cover the nozzle located a little behind on the body, pipe circuit for airflow, the mechanism to vacuum and inflate, the switch to alternate the said dual functions. The mechanism can be of propeller type or piston pump type. When a propeller is used, there is one pipe for airflow. The directions of the airflow is caused by whether the propeller is turned clockwise or anticlockwise by the motor driven by the switch set to either the negative or positive polarity of the power supply. When a piston pump is used, the pipe circuit has one pipe for air intake therefore to vacuum the bags, and one for air outflow hence to inflate the bags. The main benefit is that the bag sealer has dual functions; consumers need only to turn a switch to alternate the functions.

1 . A vacuuming and inflating bag sealer comprising: a main body  1  and a top cover  2 , a bottom periphery of the top cover  2  and a top periphery of the body  1  fitting one and other, in a back part of top cover  2  and that of the body  1  being linked with a pair of hinges using axles to enable it  2  to rotate, the top cover  2  therefore can be lifted open and closed onto the main body  1 , a nozzle  3  located a little behind on the body  1 ; air pipe circuits  4 ; mechanism  5  for vacuuming and inflating; a switch  6  to alternate the functions of vacuuming and inflating; the air passage device  7  which is part of the nozzle  3  linked onto the body  1  for entering an opening of a plastic bag; the mechanism for vacuuming or inflating  5  using either propeller or a piston pump.
 when the mechanism  5  is of propeller type, an air pipe circuit  4  for vacuuming and inflating is to be installed, two ends of this air pipe circuit  4  have one end connected to the nozzle  3  and the other put through the related parts of the propeller  52  in the mechanism  5 , the switch  6  to change vacuuming to inflating is actually the same switch  6  that makes the motor  51  driving the propeller  52  to go clockwise or anti-clockwise, it is therefore also the same switch  6  that switches the polarities of the power supply from positive to negative alternately.   when the mechanism  5  is of piston pump type, the pipe circuit  4  includes a pipe for air intake  41 , therefore vacuums, and one  42  for outflow, therefore inflates, the nozzle  3  has one end connected with the valve  6  that can alternately be switched to open the pipes for vacuuming and inflating  42  and  41 , the other ends of these pipes  42  and  41  for inflating and vacuuming are individually connected through to the related parts of the piston pump  55 .   
   
   
       2 . The vacuuming and inflating bag sealer as claimed in  claim 1 , wherein the mechanism  5  is of propeller type and comprises the propeller  52 , a hood  53 , the motor  51 , the propeller  52  is assembled onto the motor  51  for it to rotate and the hood is assembled onto the propeller. 
   
   
       3 . The vacuuming and inflating bag sealer as claimed in  claim 1 , wherein the mechanism  5  is of piston pump type and comprises a piston pump  55 , and a motor  54 , the motor  54  is assembled onto the piston pump  55 . 
   
   
       4 . The vacuuming and inflating bag sealer as claimed in  claim 1 , wherein the pipe circuit for air intake and outflow  4  is provided with an air pressure controller. 
   
   
       5 . The vacuuming and inflating bag sealer as claimed in  claim 1 , wherein the valve switch or the polarity switch  6  to alternate direction of airflow is provided with air apertures.