Refrigerator door sealing structure of refrigerator-freezer and refrigerator-freezer thereof

Abstract

The utility model relates to the technical field of household appliances, and particularly discloses a refrigerator-freezer door sealing structure and a refrigerator-freezer thereof. The sealing performance of the refrigerator-freezer is improved, and more convenient use experience is brought to a user. Comprising a mounting part, a sealing part and a buffering part arranged between the mounting part and the sealing part; and the mounting part is provided with a shrinkage cavity. The sealing part comprises an adsorption heat insulation cavity and a sealing cavity; an adsorption part is arranged in the adsorption heat insulation cavity; one end of the mounting part is a mounting end, and the other end of the mounting part is connected with the connecting film; one ends of the first buffer wall and the second buffer wall are connected with the inner surface of the connecting film, and the other ends are connected with the outer surface of the bottom of the sealing cavity; and the buffer part forms a buffer cavity between the first buffer wall and the second buffer wall. According to the sealing structure, the sealing performance and installation are optimized, and convenient and comfortable experience is brought to a user.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a door sealing structure of a refrigerator-freezer and the refrigerator-freezer. Background Art

[0002] Refrigerator-freezer is an indispensable part of modern family life, which provides great convenience for our food preservation. This refrigerator-freezer has won the favor of consumers with its excellent performance and humanized design. It can flexibly adjust the temperature according to different seasons and food storage needs to ensure that the food remains at the best freshness. At the same time, the space layout inside the refrigerator is also very reasonable. The multi-layer storage rack and drawer design allows you to classify and store food according to its type and size, which is both convenient and hygienic.

[0003] The door sealing structure of refrigerators and freezers is an important guarantee for the fresh-keeping performance of refrigerators. It is also a key link to prevent external heat intrusion and maintain internal temperature stability. In the design, we fully considered the durability, tightness and easy maintenance of the door sealing structure. The door sealing structure is mainly composed of sealing strips and sealing grooves. The sealing strip is made of high-quality rubber material and has good elasticity and wear resistance after special processing. When the door is closed, the sealing strip can fit tightly in the sealing groove, effectively isolating the exchange of internal and external air and preventing cold air from leaking out.

[0004] The patent "A door seal for a freezer and refrigerator" (publication number CN2418233Y, hereinafter referred to as prior art 1) discloses a door seal that prevents a freezer and refrigerator from leaking cold. The door seal in prior art 1 is provided with an elastic airbag and a compression airbag. The elastic airbag is used to be compressed when the door seal contacts the box body, and can be squeezed with the box body to make it close to the box body and prevent cold leakage. The compression airbag is used to store air for popping out the elastic airbag. When the box door and the door body are squeezed, the air is squeezed, and the elastic airbag is popped out. The airbag used in prior art 1 prevents the internal air from flowing out, but because the elastic airbag is arranged on the outside of the box body, the cold air inside the box body will still diffuse outward and contact the elastic airbag, thereby generating heat exchange with the external air. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a refrigerator-freezer door sealing structure and a refrigerator-freezer thereof, so as to solve the problem in the prior art that the cold air inside the refrigerator-freezer cannot be isolated from leaking out and exchanging heat with the outside.

[0006] In the first aspect, the embodiment of the utility model provides a door sealing structure of a refrigerator-freezer, comprising a mounting portion and a sealing portion and a buffer portion arranged between the mounting portion and the sealing portion; the mounting portion is provided with a shrinkage cavity; the two sides of the mounting portion shrink into the shrinkage cavity by the extrusion of external force; the sealing portion comprises an adsorption insulation cavity and a sealing cavity; an adsorption member is arranged in the adsorption insulation cavity; the outer surface of the sealing portion comprises a contact sealing surface and an internal sealing surface; the contact sealing surface and the internal sealing surface are arranged in a stepped shape; the sealing portion is sealed with the door through the contact sealing surface; the internal sealing surface is arranged inside the refrigerator-freezer; one end of the mounting portion is the mounting end, and the other end of the mounting portion is connected to a connecting film; the buffer portion connects the mounting portion and the sealing portion through a first buffer wall and a second buffer wall arranged on both sides; one end of the first buffer wall and the second buffer wall are connected to the inner surface of the connecting film, and the other end is connected to the outer surface of the bottom of the sealing cavity; the buffer portion forms a buffer cavity between the first buffer wall and the second buffer wall.

[0007] Preferably, an auxiliary thermal insulation film is further provided on one side of the connecting film; one end of the auxiliary thermal insulation film is connected to the connecting film; and the auxiliary thermal insulation film is extended in the direction of the contact sealing surface.

[0008] Preferably, a connecting film is further provided on the outer surface of the side portion of the adsorption heat-insulating cavity, and the connecting film is extended in the direction of the auxiliary heat-insulating film and connected to the auxiliary heat-insulating film.

[0009] Preferably, after the connecting film is connected to the auxiliary thermal insulation film, a first thermal insulation cavity is formed between the connecting film and the first buffer wall; and the end surface of the auxiliary thermal insulation film is arranged flush with the contact sealing surface.

[0010] Preferably, after the contact sealing surface is contact-sealed with the refrigerator-freezer, a second insulation cavity is formed between the contact sealing surface and the auxiliary insulation film; the first insulation cavity and the second insulation cavity are arranged adjacent to each other.

[0011] Preferably, a third buffer wall is further provided on the connecting film, and a sealed cavity is formed between the third buffer wall and the internal sealing surface.

[0012] Preferably, the mounting end of the mounting portion comprises a first bonding film and a second bonding film; the first bonding film and the second bonding film are arranged at an acute angle; and the first bonding film and the second bonding film are both connected to the connecting film.

[0013] Preferably, a first auxiliary mounting film and a second auxiliary mounting film are respectively provided on both sides of the angle formed by the first bonding film and the second bonding film; the outer surfaces inside the first auxiliary mounting film and the second auxiliary mounting film are respectively the first clamping surface and the second clamping surface.

[0014] In a second aspect, a refrigerator-freezer is provided, comprising a body and a door; the interior of the body is a storage cavity; the door is hinged to the body; the door is in an open or closed state with the storage cavity of the body through the hinge with the body; the door sealing structure is connected to the door of the refrigerator-freezer; the door is provided with an installation groove, and the installation groove is adaptively arranged with the installation portion.

[0015] Preferably, the door sealing structure of the refrigerator-freezer is installed through the mounting portion and the mounting groove of the door; when the door and the box body are in a closed state, the contact sealing surface is in contact and seal with the box body.

[0016] The utility model provides a refrigerator-freezer door sealing structure and a refrigerator-freezer thereof, which has the following beneficial effects:

[0017] The design of the door sealing structure of this refrigerator-freezer not only provides an excellent sealing effect, but also fully considers the convenience and durability of use. The shrinkage cavity design of the mounting part makes the sealing structure easier to install with the door. During installation, the two sides can shrink into the shrinkage cavity by the extrusion of external force, effectively reducing the gap between the mounting part and the door, and improving the sealing performance. At the same time, this design also makes the mounting part have a certain buffering effect when subjected to external force, avoiding damage due to excessive external force. The adsorption insulation cavity and sealing cavity design of the sealing part enable the sealing part to adsorb the door to achieve a good sealing effect, and reduce the heat exchange inside the refrigerator-freezer through the insulation effect, thereby improving the refrigeration and freezing effect. The setting of the adsorption part further enhances the adsorption capacity of the sealing part, so that the door can maintain a good sealing state even when subjected to vibration or external force. The first buffer wall and the second buffer wall design of the buffer part form a buffer cavity, which provides sufficient buffer space for the connection between the mounting part and the sealing part, reduces the influence of stress caused by external force or temperature change on the sealing structure, and prolongs the service life of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0019] Figure 1 The present invention is a three-dimensional schematic diagram of a door sealing structure of a refrigerator-freezer;

[0020] Figure 2 The present invention is a side view schematic diagram of a door sealing structure of a refrigerator-freezer;

[0021] Figure 3 The present invention is a schematic diagram of the structure of the door sealing structure of a refrigerator-freezer cooperating with the refrigerator-freezer;

[0022] Figure 4 The present invention is a three-dimensional schematic diagram of the sealing structure of a refrigerator door and the matching structure of one side of the door;

[0023] Figure 5 yes Figure 4 Front view of the diagram;

[0024] Parts and numbers in the picture:

[0025] 1-refrigerator-freezer, 11-box body, 111-storage cavity, 12-box door; 2-sealing component, 21-contraction cavity, 22-adsorption insulation cavity, 23-sealing cavity, 24-contact sealing surface, 25-internal sealing surface; 31-installation end, 311-first bonding film, 312-second bonding film, 313-first auxiliary installation film, 314-second auxiliary installation film, 315-first clamping surface, 316-second clamping surface; 41-connecting film, 42-auxiliary insulation film, 44-first insulation cavity, 45-second insulation cavity; 51-buffer cavity, 511-first buffer wall, 512-second buffer wall, 513-third buffer wall. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1 and Figure 2 The embodiment of the utility model provides a door sealing structure of a refrigerator-freezer, comprising a mounting portion, a sealing portion, and a buffer portion disposed between the mounting portion and the sealing portion; the mounting portion is provided with a contraction cavity 21; the two sides of the mounting portion contract into the contraction cavity 21 by external force; when the mounting portion is pressed by external force, the contraction cavities 21 on both sides thereof contract inwardly, thereby reducing the volume of the entire mounting portion, making it easier to adapt to the mounting grooves of the door 12 of various refrigerator-freezers 1. This design not only improves the flexibility of installation, but also enables the sealing structure of the door 12 to better fit the door 12, thereby enhancing the sealing performance.

[0029] The sealing part is provided with an adsorption and insulation cavity 22, and the adsorption and insulation cavity 22 can absorb external heat and play a role in heat insulation. This design is particularly important in the application of the refrigerator-freezer 1, and can effectively reduce the impact of external heat on the internal temperature of the box body 11, thereby maintaining the freshness of the food and extending the shelf life. The buffer part is provided with a buffer cavity 51, and the buffer cavity 51 is surrounded by a first buffer wall 511, a second buffer wall 512 and a third buffer wall 513, forming an elastic space. When the door 12 is closed, the buffer part can absorb the impact force, reduce the impact on the sealing structure when closing the door, protect the sealing part from damage, and also improve the stability and comfort of opening and closing the door. Furthermore, an adsorption part, such as a magnetic adsorption part, is provided in the adsorption and insulation cavity 22 for adsorption and combination with the box body 11.

[0030] The design of the adsorption insulation cavity 22 and the sealing cavity 23 of the sealing part enables the sealing part to adsorb the door 12 to achieve a good sealing effect, and can also reduce the heat exchange inside the refrigerator-freezer 1 through the heat insulation effect to improve the refrigeration and freezing effect. The setting of the adsorption part further enhances the adsorption capacity of the sealing part, so that the door 12 can maintain a good sealing state even when it is subjected to vibration or external force.

[0031] In the embodiment, the mounting portion further includes a first bonding film 311 and a second bonding film 312, which are respectively arranged on both sides of the mounting portion and are used to be bonded with the mounting groove of the door 12. At the same time, a first auxiliary mounting film 313 and a second auxiliary mounting film 314 are further arranged between the first bonding film 311 and the second bonding film 312, which further enhance the connection stability and sealing between the mounting portion and the mounting groove.

[0032] See also Figure 1 and Figure 2The sealing part includes an adsorption insulation cavity 22 and a sealing cavity 23; an adsorption member is arranged in the adsorption insulation cavity 22; the outer surface of the sealing part includes a contact sealing surface 24 and an internal sealing surface 25; the contact sealing surface 24 and the internal sealing surface 25 are arranged in a stepped manner; the sealing part is sealed with the door 12 through the contact sealing surface 24; and the internal sealing surface 25 is arranged inside the refrigerator-freezer 1. The stepped design of the contact sealing surface 24 and the internal sealing surface 25 enables the sealing part to form a multi-stage seal when in contact with the door 12, further enhancing the sealing effect. At the same time, the setting of the internal sealing surface 25 also prevents the cold air or hot air inside the refrigerator-freezer 1 from leaking through the gap between the sealing part and the door 12, thereby ensuring the working efficiency of the refrigerator-freezer 1. The sealing part also has excellent elasticity and aging resistance, making the sealing effect more durable and stable. In order to further improve the sealing performance, the adsorption member in the adsorption insulation cavity 22 is made of a high-efficiency adsorption material, which can effectively absorb and isolate external heat and reduce the loss of cold.

[0033] See also Figure 3 and Figure 4 During the operation of the refrigerator-freezer 1, when the door 12 is closed, the contact sealing surface 24 fits tightly against the sealing surface of the door 12, forming a solid sealing barrier, effectively preventing cold air from leaking out and hot air from entering. At the same time, the internal sealing surface 25 fits tightly against the inner wall of the refrigerator-freezer 1, playing a secondary sealing role, further enhancing the sealing effect. Furthermore, the design of the sealing part also fully considers the ease of use and maintenance. The sealing part adopts a modular design, which is convenient for disassembly and replacement, reducing maintenance costs. At the same time, the outer surface of the sealing part is made of wear-resistant and corrosion-resistant materials, which can effectively resist various adverse factors in the use environment and extend the service life.

[0034] One end of the mounting portion is the mounting end 31, and the other end of the mounting portion is connected to the connecting film 41; the buffer portion connects the mounting portion and the sealing portion through a first buffer wall 511 and a second buffer wall 512 arranged on both sides; one end of the first buffer wall 511 and the second buffer wall 512 are connected to the inner surface of the connecting film 41, and the other end is connected to the outer surface of the bottom of the sealing cavity 23; the buffer portion forms a buffer cavity 51 between the first buffer wall 511 and the second buffer wall 512.

[0035] The buffer cavity 51 can be filled with soft buffer material to reduce the vibration and impact between the mounting part and the sealing part, and improve the stability and durability of the overall structure. In addition, the setting of the buffer part can also effectively prevent excessive friction between the mounting part and the sealing part, thereby extending the service life of the product. Furthermore, the structure of the sealing part adopts sealing technology to ensure that it has good sealing performance. On the outer surface of the sealing part, there are several sealing grooves, which can effectively prevent the intrusion of external moisture and impurities, thereby ensuring the use effect of the product. The design of the mounting part also fully considers the installation needs of the user. The mounting end 31 adopts an easy-to-operate connection method, which is convenient for the user to complete the installation work quickly and accurately. At the same time, the structure of the mounting part also has a certain degree of adjustability, which can adapt to different installation environments and needs. The design of this structure not only ensures the stability and durability of the product, but also improves the user's installation experience and use effect, bringing users a more convenient and efficient use experience.

[0036] See also Figure 1 , an auxiliary thermal insulation film 42 is also provided on one side of the connecting film 41; one end of the auxiliary thermal insulation film 42 is connected to the connecting film 41; the auxiliary thermal insulation film 42 is extended in the direction of the contact sealing surface 24. A connecting film 41 is also provided on the outer surface of the side of the adsorption insulation cavity 22, and the connecting film 41 is extended in the direction of the auxiliary thermal insulation film 42 and connected to the auxiliary thermal insulation film 42. After the connecting film 41 is connected to the auxiliary thermal insulation film 42, a first thermal insulation cavity 44 is formed between the connecting film 41 and the first buffer wall 511; the end face of the auxiliary thermal insulation film 42 is flush with the contact sealing surface 24. The design of the first thermal insulation cavity 44 between the connecting film 41 and the first buffer wall 511 not only effectively reduces heat transfer, but also improves the overall thermal insulation performance. While maintaining the thermal insulation effect, this design also ensures the compactness and stability of the entire structure.

[0037] For further information, see Figure 1 or Figure 2In order to enhance the structural stability of the sealing component 2, the connection part of the auxiliary thermal insulation film 42 and the connecting film 41 adopts a special connection method, that is, a hot pressing process is used for fixing, so that the connection between the two is more firm and reliable, and not easy to fall off or loosen. The end face of the auxiliary thermal insulation film 42 is arranged flush with the contact sealing surface 24. This design not only ensures the flatness of the contact surface, but also helps to improve the sealing performance and prevent heat from being transferred through the contact surface. Through the setting of the auxiliary thermal insulation film 42, external dirt can also be resisted. Since the first buffer wall 511, the second buffer wall 512 and the third buffer wall 513 are all irregularly shaped, there are many grooves, which may store more dirt. These grooves are isolated by the auxiliary thermal insulation film 42 to avoid the problem of dirt accumulation and inability to clean. By optimizing the design of the connecting film 41, the auxiliary insulation film 42 and the first insulation cavity 44, not only the insulation performance of the entire insulation device is improved, but also its structural stability and aesthetics are enhanced, and the cleanliness of the structure is guaranteed.

[0038] After the contact sealing surface 24 is in contact and sealed with the refrigerator-freezer 1, a second insulation cavity 45 is formed between the contact sealing surface 24 and the auxiliary insulation film 42; the first insulation cavity 44 and the second insulation cavity 45 are arranged adjacent to each other. A third buffer wall 513 is also provided on the connecting film 41, and a sealing cavity 23 is formed between the third buffer wall 513 and the internal sealing surface 25.

[0039] See also Figure 3 During the operation of the refrigerator-freezer 1, due to the change of ambient temperature and the need for freezing effect, the contact seal between the contact sealing surface 24 of the sealing component 2 and the refrigerator-freezer 1 is particularly important. This seal not only ensures the overall sealing of the box body 11, but also effectively prevents the invasion of external heat and ensures the stability of the internal temperature. The presence of the auxiliary thermal insulation film 42 further enhances this sealing effect, so that the heat transfer is greatly reduced.

[0040] See also Figure 2The adjacent arrangement of the first insulation cavity 44 and the second insulation cavity 45 further enhances the overall insulation effect. The two insulation cavities are closely connected by the connecting film 41, forming an effective insulation barrier. They work together to make it difficult for heat to enter from the outside when the refrigerator-freezer 1 is in operation, and the cold air inside is not easy to leak out, ensuring the lasting stability of the refrigeration and freezing effect. The third buffer wall 513 set on the connecting film 41 further enhances the sealing effect. The sealed cavity 23 formed between the third buffer wall 513 and the internal sealing surface 25 plays a dual role of buffering and insulation. When the internal temperature of the refrigerator-freezer 1 changes, the third buffer wall 513 can absorb and buffer these changes to prevent excessive pressure on the overall structure. At the same time, the existence of the sealed cavity 23 further prevents the transfer of heat, so that the refrigerator-freezer 1 can maintain excellent insulation performance under various environmental conditions.

[0041] The mounting end 31 of the mounting portion includes a first bonding film 311 and a second bonding film 312 ; the first bonding film 311 and the second bonding film 312 are arranged at an acute angle; the first bonding film 311 and the second bonding film 312 are both connected to the connecting film 41 .

[0042] See also Figure 1 A first auxiliary mounting film 313 and a second auxiliary mounting film 314 are respectively provided on both sides of the angle formed by the first bonding film 311 and the second bonding film 312; the outer surfaces of the inner sides of the first auxiliary mounting film 313 and the second auxiliary mounting film 314 are respectively the first clamping surface 315 and the second clamping surface 316.

[0043] The mounting end 31 is set by the acute angle of the first bonding film 311 and the second bonding film 312, so that the mounting end 31 can be more easily inserted into the mounting groove of the door 12, thereby achieving quick installation. During the installation process, the first bonding film 311 and the second bonding film 312 can form a smaller space under the effect of the acute angle, so that the mounting end 31 can smoothly enter the mounting groove of the door 12, while avoiding shaking and loose installation caused by too large a space. After the installation is completed, the first bonding film 311 and the second bonding film 312 can fit tightly in the mounting groove, providing a stable installation support.

[0044] See also Figure 1In order to further improve the installation stability and reliability of the sealing component 2, the design of the first auxiliary installation film 313 and the second auxiliary installation film 314 also plays a key role. The two auxiliary installation films are respectively located on both sides of the angle position of the first bonding film 311 and the second bonding film 312. Through the inner outer surface, the first clamping surface 315 and the second clamping surface 316, they can be clamped with the corresponding structure inside the door 12 to further lock the position of the installation end 31. This clamping design not only enhances the firmness of the installation, but also improves the convenience of operation during the installation process, making the installation process smoother and more efficient. The design of the installation part utilizes the acute angle and the clamping function of the auxiliary installation film to achieve a quick and stable installation of the installation end 31. This design not only improves the installation efficiency, but also ensures the installation quality.

[0045] Example 2

[0046] Second, see Figure 3 , a refrigerator-freezer is provided, comprising a box body 11 and a door 12; the box body 11 has a storage cavity 111 inside; the door 12 is hinged to the box body 11; the door 12 is in an open or closed state with the storage cavity 111 of the box body 11 through the hinge with the box body 11; the door sealing structure is sealedly connected to the door 12 of the refrigerator-freezer 1; the door sealing structure is plugged into the door 12. The door 12 is provided with a mounting groove, and the mounting groove is adaptively arranged with the mounting portion.

[0047] See also Figure 4 or Figure 5 The door sealing structure of the refrigerator-freezer is installed through the mounting portion and the mounting groove of the door 12; when the door 12 and the box body 11 are in a closed state, the contact sealing surface 24 is in contact and sealing with the box body 11.

[0048] In the design of the door 12, the buffer part of the sealing structure can slow down the closing speed of the door 12, avoiding a violent collision between the door 12 and the box body 11, thereby reducing noise and protecting the structure of the refrigerator-freezer 1. In order to meet the storage needs of different users, multiple layers of adjustable storage racks are also provided inside the refrigerator-freezer 1. These storage racks can be adjusted according to the size and quantity of the items, so that the utilization rate of the storage cavity 111 is maximized.

[0049] See also Figure 3The design of the sealing component 2 of the door 12 of the refrigerator-freezer 1 not only ensures good sealing between the door 12 and the box body 11, but also can effectively slow down the speed of closing the door 12, avoiding noise and damage caused by violent collisions. This not only improves the user experience, but also extends the service life of the refrigerator-freezer 1. The practicality and flexibility of the refrigerator-freezer 1 are greatly increased by setting up multi-layer adjustable storage shelves. Users can freely adjust the position and height of the storage shelves according to different storage needs to adapt to items of different sizes and quantities. Such a design greatly improves the space utilization of the refrigerator-freezer 1, and also facilitates the user's access operations.

[0050] The overall design of the refrigerator-freezer 1 also fully considers the actual usage scenarios of users. Whether it is the buffer part of the sealed structure or the adjustable storage rack, it reflects a deep understanding of user needs. This design makes the refrigerator-freezer 1 not only have good refrigeration and freezing effects, but also have excellent convenience of use.

[0051] Example 3

[0052] See also Figure 1 and Figure 3 , a refrigerator door sealing structure and a refrigerator box thereof are provided, and the sealing performance of the refrigerator box 1 is significantly improved by designing a refrigerator door sealing structure. The close contact between the contact sealing surface 24 and the refrigerator box 1, and the heat insulation effect of the auxiliary heat insulation film 42, together construct an efficient heat insulation barrier, effectively prevent the invasion of external heat, and ensure the stability of the internal temperature. This not only improves the refrigeration and freezing effect, but also prolongs the food preservation time.

[0053] See also Figure 1, the heat insulation performance of the refrigerator-freezer 1 is further enhanced by the adjacent arrangement of the first heat-insulating cavity 44 and the second heat-insulating cavity 45, and the design of the third buffer wall 513 on the connecting film 41. The two heat-insulating cavities work together to form a more stable heat-insulating layer, and the third buffer wall 513 can absorb and buffer these changes when the temperature changes, preventing excessive pressure on the overall structure. Such a design enables the refrigerator-freezer 1 to maintain excellent heat-insulating performance under various environmental conditions. The innovative design of the mounting part makes the installation of the door 12 of the refrigerator-freezer 1 more convenient and efficient. Through the setting of the acute angle and the clamping function of the auxiliary mounting film, the mounting end 31 can be more easily inserted into the mounting groove of the door 12 and can be stably installed. This not only improves the installation efficiency, but also ensures the installation quality and avoids the problem of reduced sealing performance caused by improper installation. The overall design of the refrigerator-freezer 1 focuses on the user experience and actual needs. The setting of the buffer part slows down the closing speed of the door 12, reduces noise, and protects the structure of the refrigerator-freezer 1. At the same time, the multi-layer adjustable storage shelf design maximizes the utilization of the storage cavity 111 and meets the different storage needs of users. Such a design not only improves the practicality of the refrigerator-freezer 1, but also improves the user satisfaction.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A door sealing structure for a refrigerator-freezer, characterized in that: It comprises a mounting portion, a sealing portion and a buffer portion provided between the mounting portion and the sealing portion; the mounting portion is provided with a shrinkage cavity (21); two sides of the mounting portion shrink into the shrinkage cavity (21) by being squeezed by an external force; The sealing portion comprises an adsorption heat insulation cavity (22) and a sealing cavity (23); an adsorption member is arranged in the adsorption heat insulation cavity (22); an outer surface of the sealing portion comprises a contact sealing surface (24) and an internal sealing surface (25); the contact sealing surface (24) and the internal sealing surface (25) are arranged in a stepped manner; the sealing portion is sealed with the refrigerator-freezer (1) via the contact sealing surface (24); the internal sealing surface (25) is arranged inside the refrigerator-freezer (1); One end of the mounting portion is the mounting end (31), and the other end of the mounting portion is connected to the connecting film (41); the buffer portion connects the mounting portion and the sealing portion via a first buffer wall (511) and a second buffer wall (512) provided on both sides; one end of the first buffer wall (511) and the second buffer wall (512) are connected to the inner surface of the connecting film (41), and the other end is connected to the outer surface of the bottom of the sealing cavity (23); the buffer portion forms a buffer cavity (51) between the first buffer wall (511) and the second buffer wall (512).

2. A refrigerator-freezer door sealing structure according to claim 1, characterized in that: An auxiliary heat-insulating film (42) is also provided on one side of the connecting film (41); one end of the auxiliary heat-insulating film (42) is connected to the connecting film (41); and the auxiliary heat-insulating film (42) is extended in the direction of the contact sealing surface (24).

3. The refrigerator-freezer door sealing structure according to claim 2, characterized in that: A connecting film (41) is also provided on the outer surface of the side of the adsorption heat-insulating cavity (22), and the connecting film (41) is extended in the direction of the auxiliary heat-insulating film (42) and connected to the auxiliary heat-insulating film (42).

4. The refrigerator-freezer door sealing structure according to claim 2, characterized in that: After the connecting film (41) is connected to the auxiliary heat-insulating film (42), a first heat-insulating cavity (44) is formed between the connecting film (41) and the first buffer wall (511); the end surface of the auxiliary heat-insulating film (42) is arranged flush with the contact sealing surface (24).

5. The door sealing structure of a refrigerator-freezer according to claim 4, characterized in that: After the contact sealing surface (24) is in contact and sealed with the refrigerator / freezer (1), a second heat insulating cavity (45) is formed between the contact sealing surface (24) and the auxiliary heat insulating film (42); the first heat insulating cavity (44) and the second heat insulating cavity (45) are arranged adjacent to each other.

6. The refrigerator-freezer door sealing structure according to claim 5, characterized in that: A third buffer wall (513) is also provided on the connecting film (41), and a sealed cavity (23) is formed between the third buffer wall (513) and the internal sealing surface (25).

7. The refrigerator-freezer door sealing structure according to claim 6, characterized in that: The mounting end (31) of the mounting portion comprises a first bonding film (311) and a second bonding film (312); the angle between the first bonding film (311) and the second bonding film (312) is set to be an acute angle; the first bonding film (311) and the second bonding film (312) are both connected to the connecting film (41).

8. The refrigerator-freezer door sealing structure according to claim 7, characterized in that: A first auxiliary mounting film (313) and a second auxiliary mounting film (314) are respectively provided on both sides of the angle formed by the first bonding film (311) and the second bonding film (312); the outer surfaces of the inner sides of the first auxiliary mounting film (313) and the second auxiliary mounting film (314) are respectively a first clamping surface (315) and a second clamping surface (316).

9. A refrigerator-freezer, comprising a box body (11) and a door (12); the box body (11) has a storage cavity (111) inside; the door (12) is hinged to the box body (11); the door (12) is in an open or closed state with the storage cavity (111) of the box body (11) through the hinged connection with the box body (11); the characteristic is that: The invention comprises a refrigerator-freezer door sealing structure as claimed in any one of claims 1 to 8, wherein the door sealing structure is connected to a door (12) of the refrigerator-freezer (1); a mounting groove is provided on the door (12), and the mounting groove is adaptively arranged with the mounting portion.

10. A refrigerator-freezer according to claim 9, characterized in that: The door sealing structure of the refrigerator-freezer (1) is installed via the mounting portion and the mounting groove of the door (12); when the door (12) and the box body (11) are in a closed state, the contact sealing surface (24) and the box body (11) are in contact sealing.

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