Refrigerator with vacuum fresh-keeping function

Abstract

The refrigerator with the vacuum preservation function comprises a refrigerator body, a refrigerator cover, a refrigeration cavity, a vent hole, a lock body, a lock piece, a vacuum pump, a vacuumizing hole, a sealing plug and a movable switch, and when the movable switch moves, the lock body and the lock piece are driven to be unlocked, and the sealing plug can be driven to be separated from a sealing section in the vent hole. When a vacuum fresh-keeping function needs to be used, the sealing plug is installed in the sealing section to seal the vent hole, the vacuum pump is started to vacuumize the refrigeration cavity, when the box door is opened, the movable switch is controlled to move to drive the lock body and the lock piece to be unlocked, meanwhile, the movable switch pushes the sealing plug out of the sealing section, and the vacuum fresh-keeping function is achieved. Therefore, the ventilation hole can communicate the outside of the box body with the refrigeration cavity, air enters the refrigeration cavity to relieve negative pressure, and the box door can be smoothly opened at the moment. According to the scheme, opening of the sealing plug and opening of the box door are integrated on one operation process, and the operation process of a user is simplified.

Description

Technical Field

[0001] This utility model relates to the field of refrigerators, and in particular to a refrigerator equipped with a vacuum preservation function. Background Technology

[0002] When storing food in a refrigerator, the preservation time is affected not only by temperature but also by the vacuum level inside the refrigerator. To address this, some companies have designed refrigerators with vacuum preservation functions, such as the vehicle refrigerator and vehicle disclosed in patent application number 202320492306.8. This refrigerator includes a door and a body, with a vacuum chamber and a lid inside. The lid has a sealing plug. To open the vacuum chamber, the sealing plug must first be opened to allow air to enter and release the negative pressure before the vacuum chamber can be opened smoothly. However, a problem exists: to open the vacuum chamber, the door must be opened first, the sealing plug manually removed, and then the lid opened, which is a cumbersome process. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a refrigerator that can simultaneously open the sealing plug when the door is opened.

[0004] The technical solution adopted by this utility model to solve the problem is: a refrigerator equipped with a vacuum preservation function, comprising:

[0005] The enclosure includes a cooling chamber, a cover for opening and closing the cooling chamber, a sealing element between the enclosure and the cover, a cooling system for cooling the cooling chamber, a vent hole communicating with the outside of the enclosure, a sealing section on the vent hole, a lock body on the enclosure, and a lock element that cooperates with the lock body on the cover.

[0006] A vacuum pump is installed inside the housing, and the cooling chamber is provided with a vacuum pump hole that communicates with the vacuum pump.

[0007] A sealing plug, which is movably installed in the sealing section to seal the vent hole;

[0008] A movable switch is mounted on the housing and can move on the housing. When the movable switch moves, it drives the lock body to unlock the lock. The movable switch is connected to a sealing plug. When the movable switch moves, it can push the sealing plug out of the sealing section to open the vent.

[0009] As a further improvement to the above technical solution, the movable switch is provided with a pin located in the vent hole, and when the movable switch is moved to the end, it can push the sealing plug out from the sealing section.

[0010] As a further improvement to the above technical solution, the lock is a vertical locking rod with a locking hook at the bottom and a guide slope on the bottom surface of the locking hook. The lock body is a lock hole located on the upper surface of the movable switch. When the movable switch is at its outermost position, the locking hook can engage with the lock hole. A reset elastic element for driving the movable switch to reset is provided between the movable switch and the housing. The movable switch has a starting point, a midpoint, and an ending point on its movement path. When the movable switch moves to the midpoint, the locking hook unlocks from the lock hole. When the movable switch moves to the ending point, the locking hook remains unlocked from the lock hole, and the movable switch simultaneously drives the sealing plug to disengage from the sealing section.

[0011] As a further improvement to the above technical solution, the locking hook is located on the rear side of the bottom of the locking rod, and the reset elastic element drives the movable switch to reset outward.

[0012] As a further improvement to the above technical solution, a connecting rope connected to the sealing plug is provided inside the refrigeration cavity.

[0013] As a further improvement to the above technical solution, the sealing section is located at the end of the vent hole, and the sealing plug includes a plug head and a cap head, wherein the plug head is used to seal and be inserted into the sealing section, and when the plug head is inserted into the sealing section, the cap head abuts against the outer end face of the vent hole.

[0014] The beneficial effects of this invention are as follows: When the vacuum preservation function is required, the sealing plug is installed in the sealing section to seal the vent. The vacuum pump is then turned on to evacuate the cooling chamber. When the door is opened, the movable switch is moved to unlock the lock body and locking mechanism. Simultaneously, the movable switch pushes the sealing plug out of the sealing section, allowing the vent to connect the outside of the cabinet with the cooling chamber, enabling air to enter the cooling chamber and relieve the negative pressure. At this point, the door can be opened smoothly. This solution integrates the opening of the sealing plug and the opening of the door into a single operation, simplifying the user's operation. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the box door cover when it is closed onto the box body;

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point B;

[0019] Figure 4This is a schematic diagram of the structure of the box door when it is opened;

[0020] Figure 5 This is a schematic diagram of the movable switch. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Reference Figures 1 to 5 A refrigerator equipped with a vacuum preservation function includes:

[0026] A housing 10 is provided, which contains a cooling chamber 11. The housing 10 is provided with a cover 20 for opening and closing the cooling chamber 11. A sealing element is provided between the housing 10 and the cover 20. A cooling system for cooling the cooling chamber 11 is provided inside the housing 10. A vent 13 is provided inside the cooling chamber 11 and communicates with the outside of the housing 10. The vent 13 includes a sealing section 131. A lock body is provided on the housing 10, and a lock element that cooperates with the lock body is provided on the cover 20.

[0027] A vacuum pump is installed inside the housing 10, and a vacuum hole 12 connected to the vacuum pump is provided on the cooling chamber 11.

[0028] A sealing plug 40 is movably installed in the sealing section 131 to seal the vent hole 13.

[0029] A movable switch 30 is disposed on the housing 10 and can move on the housing 10. When the movable switch 30 moves, it drives the lock body to unlock the lock. The movable switch 30 is connected to the sealing plug 40. When the movable switch 30 moves, it can push the sealing plug 40 out of the sealing section 131 to open the vent hole 13.

[0030] When the vacuum preservation function is required, the sealing plug 40 is installed into the sealing section 131 to seal the vent 13. The vacuum pump is then turned on to evacuate the cooling chamber 11. When the door is opened, the movable switch 30 is moved, which unlocks the lock body and locking mechanism. Simultaneously, the movable switch 30 pushes the sealing plug 40 out of the sealing section 131, allowing the vent 13 to connect the outside of the cabinet 10 with the cooling chamber 11, allowing air to enter the cooling chamber 11 and relieve the negative pressure. At this point, the door can be opened smoothly. This solution integrates the opening of the sealing plug 40 and the opening of the door into a single operation, simplifying the user's operation.

[0031] In the above scheme, preferably, the movable switch 30 is provided with a pin 32 located in the vent 13. When the movable switch 30 is moved to its end, it can push the sealing plug 40 out of the sealing section 131. At this time, the pin 32 and the sealing plug 40 are two independent components. The pin 32 pushes the sealing plug 40 into the cooling chamber 11 by abutting against the end of the sealing plug 40. To prevent the sealing plug 40 from being lost, preferably, a connecting rope connected to the sealing plug 40 is provided in the cooling chamber 11.

[0032] Further optimization: In the above scheme, the preferred locking element is a vertical locking rod 21. The bottom of the locking rod 21 is provided with a locking hook 22, and the bottom surface of the locking hook 22 is provided with a guide slope. The lock body is a lock hole 31 provided on the upper end surface of the movable switch 30. When the movable switch 30 is at the outermost end, the locking hook can engage in the lock hole 31. A reset elastic element for driving the movable switch 30 to reset is provided between the movable switch 30 and the housing 10. The movable switch 30 includes a starting point, a midpoint, and an ending point on its movement path. When the movable switch 30 moves to the midpoint, the locking hook 22 unlocks from the lock hole 31. When the movable switch 30 moves to the ending point, the locking hook 22 remains unlocked from the lock hole 31. At the same time, the movable switch 30 drives the sealing plug 40 to disengage from the sealing section 131. Preferably, the locking hook 22 is located on the rear side of the bottom of the locking rod 21. The reset elastic element drives the movable switch 30 to reset outward. In this way, the process of driving the movable switch 30 to control the lock body to unlock the lock is simply pressing the movable switch 30 inward, which is relatively convenient. In other ways, the locking hook 22 can also be located on the front side of the bottom of the locking rod 21. In this case, the movable switch 30 needs to be pulled outward to unlock the door.

[0033] The reset elastic element can be a reset spring or an elastic rubber column, etc.

[0034] In other solutions, the sealing plug 40 can also be designed as an integral part of the movable switch 30. In this way, the movable switch 30 always drives the sealing plug 40 to move during the movement. In this state, the sealing plug 40 is located in the sealing section 131 and plays the role of sealing the vent hole 13 only when the movable switch 30 moves to the initial state.

[0035] In this solution, the lock body can be an electromagnetic lock, and the lock element is a magnetic metal set on the box cover 20. The electromagnetic lock is equipped with a power-off switch located on the moving path of the movable switch 30. When the movable switch 30 moves, it triggers the power-off switch, thereby causing the electromagnetic lock to lose its magnetism and stop magnetically attracting the metal, so that the box door can be opened smoothly.

[0036] In this scheme, the sealing section 131 is preferably located at the end of the vent hole 13. The sealing plug 40 includes a plug head 41 and a cap head 42. The plug head 41 is used to seal and insert into the sealing section 131. When the plug head 41 is inserted into the sealing section 131, the cap head 42 abuts against the outer end face of the vent hole 13.

[0037] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A refrigerator equipped with a vacuum preservation function, characterized in that, include: A housing (10) is provided, wherein a cooling chamber (11) is provided inside the housing (10), and a cover (20) for opening and closing the cooling chamber (11) is provided on the housing (10). A sealing element is provided between the housing (10) and the cover (20). A cooling system for cooling the cooling chamber (11) is provided inside the housing (10). A vent (13) communicating with the outside of the housing (10) is provided inside the cooling chamber (11). The vent (13) includes a sealing section (131). A lock body is provided on the housing (10), and a lock element that cooperates with the lock body is provided on the cover (20). A vacuum pump is installed inside the housing (10), and a vacuum hole (12) connected to the vacuum pump is provided on the cooling chamber (11). A sealing plug (40) is movably installed in the sealing section (131) to seal the vent (13); A movable switch (30) is mounted on the housing (10) and can move on the housing (10). When the movable switch (30) moves, it drives the lock body to unlock the lock. The movable switch (30) is connected to a sealing plug (40). When the movable switch (30) moves, it can push the sealing plug (40) out of the sealing section (131) to open the vent (13).

2. A refrigerator with vacuum preservation function as described in claim 1, characterized in that: The movable switch (30) is provided with a pin (32) located in the vent (13), and when the movable switch (30) is moved to the end, it can push the sealing plug (40) out of the sealing section (131).

3. A refrigerator with vacuum preservation function as described in claim 1, characterized in that: The lock is a vertical locking rod (21). The bottom of the locking rod (21) is provided with a locking hook (22). The bottom surface of the locking hook (22) is provided with a guide slope. The lock body is a lock hole (31) provided on the upper surface of the movable switch (30). When the movable switch (30) is at the outermost end, the locking hook can be engaged in the lock hole (31). A reset elastic element for driving the movable switch (30) to reset is provided between the movable switch (30) and the housing (10). The movable switch (30) includes a starting point, a midpoint and an ending point on the moving path. When the movable switch (30) moves to the midpoint, the locking hook (22) is unlocked from the lock hole (31). When the movable switch (30) moves to the ending point, the locking hook (22) remains unlocked from the lock hole (31). At the same time, the movable switch (30) drives the sealing plug (40) to disengage from the sealing section (131).

4. A refrigerator with vacuum preservation function as described in claim 3, characterized in that: The locking hook (22) is located on the rear side of the bottom of the locking rod (21), and the reset elastic element drives the movable switch (30) to reset outward.

5. A refrigerator with vacuum preservation function as described in claim 1, characterized in that: The cooling chamber (11) is provided with a connecting rope that is connected to the sealing plug (40).

6. A refrigerator equipped with a vacuum preservation function as described in claim 1, 2, 4, or 5, characterized in that: The sealing section (131) is located at the end of the vent (13). The sealing plug (40) includes a plug head (41) and a cap head (42). The plug head (41) is used to seal and insert into the sealing section (131). When the plug head (41) is inserted into the sealing section (131), the cap head (42) abuts against the outer end face of the vent (13).

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