Refrigerating box with internal and external dynamic wrapping and sealing functions

Abstract

The invention discloses a refrigerated container with internal and external dynamic wrapping and sealing functions, and relates to the field of refrigerated container sealing parts, the refrigerated container comprises a refrigerated container main body, a container door is arranged outside a container opening of the refrigerated container main body, a suction magnetic strip is arranged at the flat attaching part of the container door and the periphery of the container opening, and an inner convex part is arranged on the inner surface of the container door; a blocking edge is arranged on the inner periphery of a box opening of the refrigerating box body, the section of the blocking edge is in a triangular protruding shape, an outer hinge plate is hinged to the front portion of the edge of an inner protruding part, and an inner pressing plate is hinged to the rear portion of the edge of the inner protruding part. The rear end of the outer page plate abuts against the front end of the inner pressing plate to enable the inner pressing plate to integrally rotate and turn outwards to be attached to the rear portion of the blocking edge, so that the sealing strip is attached to the blocking edge in an active wrapping and clamping mode, the inner and outer wrapping and sealing effects are achieved, the attaching and sealing strength is high, the sealing stability is good, and the sealing effect is not prone to being interfered by material aging.

Description

Technical Field

[0001] This invention relates to the field of refrigerator sealing components, and more particularly to a refrigerator with dynamic internal and external sealing function. Background Technology

[0002] Active refrigerators need to maintain a stable low-temperature environment inside the refrigerator to ensure the quality and safety of stored items. The door sealing strip, as a key sealing component between the refrigerator body and the door, plays a crucial role in the rate of cold air leakage and the energy consumption level of the refrigeration system.

[0003] The existing active refrigerator door sealing strip is set on the edge of the door. When the door is closed, the sealing strip is pressed against the edge of the door to achieve a sealing effect. This pressing sealing method mainly relies on the one-way pressing contact between the sealing surface and the box body and door to form a sealing interface. Not only is the sealing contact area limited, but the sealing strip is also in a passive pressing state, resulting in weak sealing stability. In the long-term use, the sealing performance is significantly affected by the aging of the sealing strip. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide a refrigerator with dynamic internal and external sealing functions, which solves the problems of limited sealing contact area, weak sealing stability, and significant impact of sealing strip aging on the sealing performance of existing active refrigerators.

[0005] To address the problems of the prior art, the technical solution of the present invention is as follows: A refrigerator with dynamic internal and external sealing function includes a refrigerator body, a door on the outside of the refrigerator body opening, a magnetic strip for attraction on the flat part of the door and the periphery of the opening, an inner protrusion on the inner surface of the door, a retaining edge on the inner periphery of the refrigerator body opening, the retaining edge having a triangular protruding cross-section, an outer leaf plate hinged to the front edge of the inner protrusion, an inner pressure plate hinged to the rear edge, the rear end of the outer leaf plate overlapping and pressing against the outer side of the front end of the inner pressure plate, a sealing strip sleeved around the periphery of the inner protrusion, the sealing strip covering the outer side of the outer leaf plate and the inner pressure plate, the angle of inclination between the outer leaf plate and the door being greater than the angle of inclination between the front part of the retaining edge and the door, the door closing causing the outer leaf plate to abut against the front part of the flat retaining edge, the outer leaf plate pressing against the inner pressure plate rotating, causing the inner pressure plate to fold outward and fit against the rear part of the retaining edge.

[0006] Preferably, the angle between the front part of the retaining edge and the door is 18°, the angle between the rear part of the retaining edge and the door is 60°, and the angle between the outer panel and the door when the door is not closed is 45°.

[0007] Preferably, the front edge of the inner protrusion has an outer groove, the rear part of the inner pressure plate has an inner groove, the front end of the sealing strip has an outer strip, and the rear end has an inner strip. The outer strip and the inner strip are respectively inserted into the outer groove and the inner groove, so that the sealing strip covers the outer side of the outer plate and the inner pressure plate.

[0008] Preferably, the surfaces of the outer leaf plate and the inner pressure plate have positioning grooves, and the surface of the sealing strip has positioning strips. The positioning strips engage with the positioning grooves, so that the sealing strip is tightly attached to the outer surfaces of the outer leaf plate and the inner pressure plate. This ensures that the sealing strip is consistent with the shape of the outer leaf plate and the inner pressure plate, which not only improves the installation stability of the sealing strip but also prevents the sealing strip from protruding and rubbing against the retaining edge during the closing of the door.

[0009] Preferably, the sealing strip has several sealing protrusions at the front and rear parts of the contact edge, and the interior of the sealing strip has a buffer cavity corresponding to the sealing protrusions, so that the sealing strip deforms under pressure and stably fits the edge, thus achieving a good sealing effect.

[0010] Preferably, the top of the retaining edge has a recessed folding groove, the inside of the sealing strip has a sandwich cavity, and the inner pressure plate is turned outward so that the outer wall of the sandwich cavity is shaped into a protruding folding part. The folding part fits into the folding groove, thereby increasing the sealing effect.

[0011] Preferably, the inner wall of the interlayer cavity has a deformation cavity, and the outer side of the deformation cavity protrudes to form a support part for the pressing folding part. The pressing folding part is pressed by the support part outside the deformation cavity, so that the pressing folding part in the normal state remains in an outward convex state, ensuring that the folding part can stably protrude and fit the folding groove when the sealing strip is bent.

[0012] Preferably, the rear end of the outer page plate is rounded, and the rear end of the inner pressure plate is curved towards the outer page plate to reduce the sliding friction between the outer page plate and the inner pressure plate, making the dynamic rotation of the outer page plate and the inner pressure plate more stable and smooth.

[0013] Preferably, the front part of the baffle forms an arc portion between itself and the side wall of the refrigerator body, and the front end of the outer leaf plate is an arc end. The sealing strip is supported by the front end of the outer leaf plate and fits into the arc portion, thereby increasing the sealing area and improving the sealing effect.

[0014] Compared with the prior art, the advantages of the present invention are as follows: 1. When the cabinet door is closed, the sealing strip on the outer side of the outer panel abuts against the front of the retaining edge, causing the outer panel to rotate under pressure and flat against the front of the retaining edge. The rear end of the outer panel presses against the front end of the inner pressure plate, causing the inner pressure plate to rotate outward and fit against the rear of the retaining edge. This allows the sealing strip to actively clamp against the retaining edge, forming an inner and outer sealing effect. The sealing strength is high, the sealing stability is good, and the sealing effect is not easily affected by material aging.

[0015] 2. The sealing strip of the present invention is squeezed out by the angle between the outer plate and the inner pressure plate to form a folded part for fitting the folded groove at the top of the retaining edge. The sealing strip is supported by the front end of the outer plate and fits the arc part, increasing the sealing area and improving the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sealing strip distribution structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the sealing strip installation structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the door sealing and closing process of the present invention.

[0019] Reference numerals: 1. Main body of the refrigerator; 11. Arc-shaped part; 2. Door; 21. Inner protrusion; 22. Outer groove; 3. Outer leaf plate; 4. Inner pressure plate; 41. Inner groove; 5. Sealing strip; 51. Outer strip; 52. Inner strip; 53. Interlayer cavity; 54. Folding part; 55. Deformation cavity; 56. Support part; 57. Positioning strip; 58. Buffer cavity; 59. Sealing protrusion; 6. Edge; 61. Folding groove; 7. Positioning groove; 8. Magnetic strip. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] A refrigerator with dynamic internal and external sealing function, such as Figure 1 As shown, the refrigerator includes a main body 1, a door 2 is rotatably installed on the outside of the refrigerator body 1, a magnetic strip 8 is provided on the flat part of the door 2 and the outside of the refrigerator opening, the door 2 closes the refrigerator opening by the attraction of the magnetic strip 8, the inner surface of the door 2 has an inner protrusion 21, the inner circumference of the refrigerator body 1 has a retaining edge 6, and a sealing strip 5 is provided between the inner protrusion 21 and the retaining edge 6.

[0022] like Figure 2 , Figure 3As shown, the inner protrusion 21 has two extending steps into the box opening. An outer groove 22 is opened at the edge of the step near the box door 2, and an outer leaf plate 3 is rotatably installed on the inner end face edge of the step via a pin. An inner pressure plate 4 is rotatably installed at the edge of the step away from the box door 2. The outer leaf plate 3 is tilted so that its rear end overlaps and presses against the outer side of the front end of the inner pressure plate 4. An inner groove 41 is opened at the rear of the inner pressure plate 4. The sealing strip 5 is a square ring that surrounds the inner protrusion 21. The inner front end of the sealing strip 5 has an outer strip 51 and the rear end has an inner strip 52. The outer strip 51 and the inner strip 52 are respectively inserted into the outer groove 22 and the inner groove 41, so that the sealing strip 5 covers the outer side of the outer leaf plate 3 and the inner pressure plate 4. The elastic restraint of the inner strip 52 keeps the inner pressure plate 4 perpendicular to the box door 2. Through the front end of the inner pressure plate 4 abutting and the restraint of the sealing strip 5, the angle between the outer leaf plate 3 and the box door 2 in the normal state is 45°.

[0023] like Figure 2 As shown, the cross-section of the baffle 6 is triangular and protruding. The angle between the front part of the baffle 6 and the door 2 is 18°, and the angle between the rear part of the baffle 6 and the door 2 is 60°. The angle between the outer plate 3 and the door 2 is greater than the angle between the front part of the baffle 6 and the door 2.

[0024] The dynamic sealing principle of the refrigerator is as follows: The magnetic strip 8 is used to close the door 2 and the opening of the box. The sealing strip 5 on the outer side of the outer plate 3 abuts against the front of the baffle 6, causing the outer plate 3 to be pressed and rotated to flat against the front of the baffle 6. The rear end of the outer plate 3 presses against the front end of the inner pressure plate 4, causing the inner pressure plate 4 to rotate outward and fit against the rear of the baffle 6, thus forming an inner and outer sealing effect.

[0025] like Figure 2 , Figure 3 As shown, positioning grooves 7 are provided on the surfaces of the outer leaf plate 3 and the inner pressure plate 4, and the surface of the sealing strip 5 has positioning strips 57. The positioning strips 57 engage with the positioning grooves 7, so that the sealing strip 5 is in close contact with the outer surfaces of the outer leaf plate 3 and the inner pressure plate 4, and the shape of the sealing strip 5 is consistent with that of the outer leaf plate 3 and the inner pressure plate 4. This not only improves the installation stability of the sealing strip 5, but also prevents the sealing strip 5 from protruding and rubbing against the retaining edge 6 during the closing of the box door 2.

[0026] The top of the retaining flange 6 has a recessed folding groove 61, and the inside of the dynamically bent part of the sealing strip 5 has a sandwich cavity 53. When the sealing strip 5 on the outside of the outer leaf plate 3 is attached to the front of the retaining flange 6, the inner pressure plate 4 is turned outward so that the sealing strip 5 on its outside is attached to the rear of the retaining flange 6. The angle of the joint between the outer leaf plate 3 and the inner pressure plate 4 becomes smaller, which squeezes the sealing strip 5 in this part, so that the outer wall of the sandwich cavity 53 becomes a protruding folding part 54. The folding part 54 is attached to the folding groove 61, which increases the sealing effect.

[0027] like Figure 2 , Figure 3As shown, the inner wall of the interlayer cavity 53 has a deformation cavity 55. The outer side of the deformation cavity 55 protrudes to form a support part 56 that presses against the folding part 54. The deformation cavity 55 increases the deformation space of the bending part of the sealing strip 5, reduces the stress in this part, and avoids cracking of the sealing strip 5 in this part due to bending. In addition, the support part 56 outside the deformation cavity 55 presses against the folding part 54, so that the folding part 54 under normal conditions remains in an outward convex state, ensuring that the folding part 54 can stably protrude and fit the folding groove 61 when the sealing strip 5 is bent.

[0028] The rear end of the outer plate 3 is rounded, and the rear end of the inner pressure plate 4 is curved towards the outer plate 3, which reduces the sliding friction between the outer plate 3 and the inner pressure plate 4, making the dynamic rotation of the outer plate 3 and the inner pressure plate 4 more stable and smooth.

[0029] like Figure 2 , Figure 3 As shown, the front part of the baffle 6 transitions to the side wall of the refrigerator body 1 with an arc, and this transition area forms an arc part 11. The front end of the outer leaf plate 3 is an arc end. When the door 2 is closed, the sealing strip 5 is supported by the front end of the outer leaf plate 3 and fits into the arc part 11, increasing the sealing area and improving the sealing effect.

[0030] The sealing strip 5 has several sealing protrusions 59 at the front and rear parts of the contact edge 6. The sealing strip 5 has a buffer cavity 58 at the part corresponding to the sealing protrusions 59 inside, so that the sealing strip 5 deforms under pressure and stably fits the edge 6, which has a good sealing effect.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A refrigerator with dynamic internal and external sealing function, comprising a refrigerator body (1), a door (2) provided on the outside of the refrigerator body (1), a magnetic strip (8) for attraction provided on the flat part of the door (2) and the outside of the refrigerator opening, and an inner protrusion (21) on the inner surface of the door (2), characterized in that, The inner circumference of the refrigerator body (1) has a retaining edge (6), the cross section of the retaining edge (6) is triangular and protruding. The front edge of the inner protrusion (21) is hinged with an outer plate (3), and the rear edge is hinged with an inner pressure plate (4). The rear end of the outer plate (3) overlaps and presses against the outer side of the front end of the inner pressure plate (4). A sealing strip (5) is sleeved around the outer periphery of the inner protrusion (21). The sealing strip (5) covers the outer side of the outer plate (3) and the inner pressure plate (4). The angle of inclination between the outer plate (3) and the door (2) is greater than the angle of inclination between the front part of the retaining edge (6) and the door (2). When the door (2) is closed, the outer plate (3) abuts against the front part of the retaining edge (6). The outer plate (3) presses against the inner pressure plate (4) and rotates, so that the inner pressure plate (4) flips outward and fits against the rear part of the retaining edge (6).

2. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The angle between the front part of the baffle (6) and the door (2) is 18°, the angle between the rear part of the baffle (6) and the door (2) is 60°, and the angle between the outer panel (3) and the door (2) when the door (2) is not closed is 45°.

3. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The inner protrusion (21) has an outer groove (22) at the front edge, the inner pressure plate (4) has an inner groove (41) at the rear, the sealing strip (5) has an outer strip (51) at the front end and an inner strip (52) at the rear end, the outer strip (51) and the inner strip (52) are respectively inserted into the outer groove (22) and the inner groove (41), so that the sealing strip (5) covers the outer side of the outer plate (3) and the inner pressure plate (4).

4. The refrigerator with internal and external dynamic sealing function according to claim 3, characterized in that, The outer leaf plate (3) and the inner pressure plate (4) have positioning grooves (7) on their surfaces, and the sealing strip (5) has positioning strips (57) on its surface. The positioning strips (57) engage with the positioning grooves (7) so that the sealing strips (5) are in close contact with the outer surfaces of the outer leaf plate (3) and the inner pressure plate (4).

5. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The sealing strip (5) has several sealing protrusions (59) at the front and rear parts of the contact edge (6).

6. The refrigerator with internal and external dynamic sealing function according to claim 5, characterized in that, The sealing strip (5) has a buffer cavity (58) at the part corresponding to the sealing protrusion (59) inside.

7. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The top of the flange (6) has a recessed folding groove (61), and the interior of the sealing strip (5) has a sandwich cavity (53). The inner pressure plate (4) is turned outward so that the outer wall of the sandwich cavity (53) is shaped into a protruding folding part (54), and the folding part (54) fits into the folding groove (61).

8. The refrigerator with internal and external dynamic sealing function according to claim 7, characterized in that, The inner wall of the interlayer cavity (53) has a deformation cavity (55), and the outer side of the deformation cavity (55) protrudes to form a support part (56) for the pressure folding part (54).

9. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The rear end of the outer page plate (3) is rounded, and the rear end of the inner pressure plate (4) is curved toward the outer page plate (3).

10. The refrigerator with internal and external dynamic sealing function according to claim 1, characterized in that, The front part of the baffle (6) forms an arc part (11) between the front part of the refrigerated box body (1) and the side wall. The front end of the outer plate (3) is an arc end. The sealing strip (5) is supported by the front end of the outer plate (3) and fits into the arc part (11).

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