| CPC B65B 31/048 (2013.01) [B29C 65/22 (2013.01); B29C 65/228 (2013.01); B65B 51/146 (2013.01); B65B 61/06 (2013.01)] | 4 Claims |
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1. A household vacuum sealer comprising: a holder (1) and a cap (2), a rear side of the cap (2) being rotatably connected on a top of the holder (1), the holder (1) including a circuit board (3) and an air pump (4) which are accommodated in a cavity of the holder (1), the circuit board (3) including a control circuit configured to control the household vacuum sealer, and the circuit board (3) being electrically connected with the air pump (4), the cap (2) including two hooks (21) extending from two sides of a bottom of the cap (2), and the holder (1) including two locking positions (11) defined on two sides of the top of the holder (1) and corresponding to the two hooks (21), thus locking the cap (2) on the top of the holder (1);
wherein the holder (1) includes a vacuuming portion (10) formed on a front portion of the top thereof, wherein the vacuuming portion (10) is tilted, a front end of the vacuuming portion (10) is lower than a rear end of the vacuuming portion (10), and the holder (1) includes a bag feeding portion mounted on a rear portion of the top thereof, wherein the bag feeding portion has a supply cavity (12) defined therein to accommodate a vacuum packaging bag (5), and a cutter platform (13) formed on a front end of the supply cavity (12) and extending to the vacuuming portion (10), wherein two sides of the vacuuming portion (10) extend to the two locking positions (11);
wherein the cap (2) includes a pumping portion (20) formed on a bottom thereof, a first seal ring (24) fixed on the bottom of the cap (2) and surrounding the pumping portion (20), and a flexible strap (23) and a pumping orifice (22) which are arranged on an interior of the pumping portion (20), wherein an exterior of the pumping orifice (22) is connected with an air pump (4) via an air tube;
wherein the holder (1) further includes a second seal ring (14) mounted on the top thereof and surrounding the vacuuming portion (10), the vacuuming portion (10) has a storage tank (15) configured to allow passage of the vacuum packaging bag (5), a heating element (16), and a discharge tank (17) configured to receive an opening of the vacuum packaging bag (5), wherein the storage tank (15), the heating element (16), and the discharge tank (17) are obliquely accommodated in the vacuuming portion (10),
wherein a top of the heating element (16) extends out of the top of the vacuuming portion (10), after the cap (2) is locked on the holder (1), a bottom of the flexible strap (23) abuts against the top of the heating element (16); and
wherein after the cap (2) is locked on the holder (1), the first seal ring (24) contacts with the second seal ring (14), and a closed space is defined between the vacuuming portion (10) and the pumping portion (20) so that a vacuuming pressure is equal to a pressure of the is equal to the pumping room;
wherein a height point of the top of the heating element (16) is 0.5 to 1 cm above the height point at a bottom of the heating element (16); the storage tank (15) includes a tilted guide face (298) defined on a rear portion thereof, wherein a front end of the tilted guide face (298) is lower than a rear end of the tilted guide face (298), and a top of the rear end of the tilted guide face (298) flushes with a top of the heating element (16);
wherein the pumping portion (20) includes an accommodation room (25) and a pressing portion (26) which are arranged on an interior of the pumping portion (20), the accommodation room (25), the flexible strap (23) and the pressing portion (26) are arranged in the interior of the pumping portion (20) in turn, and a bottom of the flexible strap (23) extends out of the bottom of the cap (2);
wherein after the cap (2) is locked on the holder (1), the accommodation room (25) and the storage tank (15) are defined a first storing room which is tilted and elongated, and the discharge tank (17) and the pressing portion (26) are defined a second storing room, wherein a height of an interior of a lower portion of the second storing room is greater than a height of an interior of an upper portion of the second storing room;
wherein a width of the top of the storage tank (15) obliquely along the vacuuming portion (10) is 6 to 10 cm;
wherein at least one first conduit (295) is defined among two sides of the flexible strap (23) and the first seal ring (24), and at least one second conduit (295) is defined among two sides of the heating element (16) and the second seal ring (14), after the cap (2) is locked on the holder (1), the two sides of the second storing room communicate with the two sides of the first storing room;
wherein a height difference M is defined between a top of the discharge tank (17) and the bottom of the holder (1), and the height difference M is more than 5 cm, a lowest point of the top of the discharge tank (17) is higher than a highest point of the top of the storage tank (15), and a height difference N is defined between the lowest point of the top of the discharge tank (17) and the highest point of the top of the storage tank (15), wherein the height difference N is more than 1 cm; a height to which an outer end of the opening is raised to 30 to 40% more than the total height of the household vacuum sealer; a width of the storage tank (15) is 2 to 3 times wider than a width of the discharge tank (17), a size of the first storing room is at least two times more than a size of the second storing room;
wherein the flexible strap (23) has a cavity, a cross section of which is formed in a 8 shape, and a square silicone strip engaged in the flexible strap (23), wherein the flexible strap (23) has a receiving portion defined on a top thereof, two flexible fringes formed on two inner walls of the flexible strap (23), and the pressing portion (26) formed on a bottom of the flexible strap; two tops of the two flexible fringes of the flexible strap (23) are connected with the receiving portion of the flexible strap (23), two bottoms of the two flexible fringe are connected with the pressing portion (26), and two middles of the two flexible fringes bend inward to the cavity of the flexible strap (23), wherein a thickness of a fixing portion is equal to a thickness of the two flexible fringes, a thickness of the pressing portion (26) is 2 to 3 times more than the thickness of the two flexible fringes, the pressing portion (26) has two wings extending from two sides of front and rear ends of the bottom thereof, wherein the bottom of the pressing portion (26) and two bottoms of the two wings are connected to form a plane to increase an area of the pressing portion to press the vacuum packaging bag; the cap (2) further includes a glue groove defined on the bottom thereof, and an installation portion is fixed on a bottom of the horizontal groove, wherein the two flexible fringes are received in the horizontal groove, the pressing portion (26) extends out of the bottom of the cap (2);
wherein the cap (2) includes the handle (27) rotatably connected on a top thereof and extending out of a front end of the cap (2), wherein a rear end of the handle (27) is fixed on a middle portion of a rotary shaft (28), and two sides of the rotary shaft (28) extend to the two hooks (21), wherein two rear ends of the two hooks (21) are mounted on the rotary shaft (28);
wherein the cap (2) further includes two sleeves (29) one-piece formed on two sides of a bottom thereof, and the two sleeves (29) have two fixing portions (291) one-piece formed on two inner walls thereof, wherein a height of a front end of a respective one fixing portion (291) of the two fixing portions (291) is smaller than a height of a rear end of the respective one fixing portion (291), and two arcuate corners are formed on the front end and the rear end of the respective one fixing portion (291);
wherein the two locking positions (11) are one-piece formed on the holder (1), and the two locking positions (11) have two main receiving chambers defined on two outer walls thereof to accommodate the two sleeves (29), and two auxiliary receiving chambers defined on two inner walls thereof to correspond to the two fixing portions (291) so that after the two sleeves (29) arm forced into the two locking positions (11), the two fixing portions (291) abut against the two auxiliary receiving chambers;
wherein the two sleeves (29) have two windows (292) formed on two front ends thereof, wherein a respective one sleeve (29) of the two sleeves (29) has a respective one hook (21) of the two hooks (21), wherein the handle (27) is configured to drive the rotary shaft (28) to rotate easily, and the rotary shaft (28) actuates the respective one hook (21) to rotate simultaneously, wherein the two hooks (21) have two C-shaped extensions extending outward therefrom, and two anti-slip blocks (211) separately formed on two outer walls of the two C-shaped extensions;
wherein the two main receiving chambers of the two locking positions (11) have two locking orifices (6) defined on two front ends thereof so that after the two hooks (21) rotate, the two C-shaped extensions rotatably insert into the two locking orifices (6), the two anti-slip blocks (211) of the two C-shaped extensions abut against two bottoms of the two main receiving chambers of the two locking positions (11); and
wherein the two locking positions (11) have two discharge orifices (7) defined on two bottoms thereof;
wherein the discharge tank (17) includes two stop plates (8) one-piece formed on a rear wall thereof and spaced apart, and three abutting plates (9) are located on the pressing portion (26) that is on the cap (2), when the cap (2) is locked on the top of the holder (1), the two stop plates (8) are inserted among the three abutting plates (9), a lowest point of the three abutting plates (9) is higher than a front end of the storage tank (15).
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