Pressure maintaining and alignment device

A pressure maintaining and alignment device, being characterized in that, it comprises:

• a box body (1) that is open at its front side to form an outer opening (121) having a certain depth;
• a cover assembly (2) which is rotatably connected with the box body (1) for opening and closing the outer opening (121);
• a pushing assembly (5) which is disposed on a rear side of the box body (1) for selectively clamping a product to be pressure-maintained placed in the box body (1);
• and
• a pressing assembly (4), which is located at the rear side of the pushing assembly (5);
• wherein the pressing assembly (4) comprises a pushing rod (41) and a pressing plate (42) drivingly connected to the pushing rod (41), at least one pressing arm extending to above the box body (1) is provided at the top of the pressing plate (42), an alignment adjusting assembly (3) is provided between the pressing arm and the box body (1), and the pressing plate (42) selectively pushes the alignment adjusting assembly (3) by the pressing arm under the driving of the pushing rod (41), so that the product to be pressure-maintained in the box body (1) is selectively pressed, pressure-maintained and aligned.