Double-liner electric cooker

1. A novel double-liner electric cooker, comprising a cooker body, liners and cooker covers, characterized in that two liners and two cooker covers are provided, the cooker body is provided with two first inner cavities that fit to the liners in shape and dimensions, the two first inner cavities are mutually separated via a thermal insulation plate, and the two first inner cavities are both provided with cavity openings for the liners to be placed therein; rear ends of the two cooker covers are respectively hinged to the cooker body via two hinge shafts, and extended lines along axial directions of the two hinge shafts intersect; when the two cooker covers rotate to a position where they cover the cavity openings via the hinge shafts, adjacent edges of the two cooker covers are equally spaced from each other by a gap, while when the two cooker covers rotate to a position away from the cavity openings via the hinge shafts, the two cooker covers form a V shape; a bottom of each cooker cover is provided with a second inner cavity for accommodating a top end of the liner, wall surrounding the second inner cavity is provided with a snapping groove, a sealing member is fixed in each second inner cavity in a detachable manner, and a circumferential edge of the sealing member is provided with a protrusion which transversely protrudes and is snap-fastened with the snapping groove; and the protrusion of the sealing member corresponding to each cooker cover is symmetrical relative to a center of the cooker body; two bosses are provided at an rear end of the cooker body, respectively, the two hinge shafts are rotatably mounted in the bosses with both ends thereof penetrating through and connected to the rear ends of the cooker covers; the cooker cover comprises an upper cover provided with the second inner cavity at the bottom thereof, and a lower cover formed in a rinq shape and fixed to the bottom of the upper cover, the periphery of the lower cover abuts against the inner wall of the second inner cavity; the hinge shafts are pivotally fixed to the rear end of the upper cover, the upper cover comprises an inside corner proximal to the hinge shafts and an outside corner distal to the hinge shafts, wherein the outside corner is provided with a permeable member, a magnetic member magnetically engaging with the permeable member is fixed to the lower cover corresponding to the outside corner, a foot-pad abutting against the inside corner protrudes from the lower cover corresponding to the inside corner; the lower cover is fixed with a lining cover at the center thereof, the lining cover covering an opening of the lower cover, the cooker body is provided with a moveable button opposing the hinge shafts at the top end thereof, the button comprises two pressing portions and two buckling portions extending from the bottoms of the two pressing portions respectively, a buckle plate cooperating with each buckling portion protrudes from a front end of corresponding cooker cover: the two hinge shafts are equipped with two torsion springs, respectively, with one end of each torsion spring fixedly connected to the cooker body and the other end fixedly connected to corresponding cooker cover.

2. The novel double-liner electric cooker according to claim 1 , characterized in that two pressing portions are adjacent to each other and independent from each other, each of the two pressing portions is in a form of a bar extending along a length direction of the cooker body.

3. The novel double-liner electric cooker according to claim 2 , characterized in that each cooker cover includes a U-shaped edge and a straight edge, the straight edges of the two cooker covers are adjacent to each other when the two cooker covers rotate to the position where they cover the cavity openings via the hinge shafts.

4. The novel double-liner electric cooker according to claim 1 , characterized in that the sealing member comprises a fixing ring, a sealing cover and a sealing ring for sealing liner opening that are stacked from top to bottom, both the fixing ring and the sealing ring encircle around periphery of the sealing cover, the protrusions protrude from the outer side face of the fixing ring, the sealing cover is shaped and sized to fit to the opening of the liner, the sealing ring is a conical ring; the circumferential edge of the sealing cover is snap-fastened with the lower cover.

5. The novel double-liner electric cooker according to claim 4 , characterized in that the bottom of the upper cover is provided with a positioning post that protrudes downwards thereform, the lower end of the positioning post is provided with a connecting head, and the center of the sealing cover is provided with a connecting sleeve into which the connecting head is inserted.