Refrigerator

Abstract

The utility model relates to a refrigerator. A door body of the refrigerator comprises a door shell and a handle assembly. The handle assembly comprises a handle and a reinforcing piece, the handle comprises a handle buckling part and a circumferential limiting part, the handle buckling part is embedded in a door shell handle installation opening, a first clamping part and a first annular sealing face are formed on the inner wall of the handle buckling part, the reinforcing piece is located in a door body, and a second clamping part and a second annular sealing face are formed on the reinforcing piece. The second clamping part is connected with the first clamping part in a clamped mode, the second annular sealing face is arranged on the outer side of the first annular sealing face in a surrounding mode, and a labyrinth type sealing structure is formed between the second annular sealing face and the first annular sealing face and used for sealing a gap between the second annular sealing face and the first annular sealing face. According to the refrigerator, the door body handle assembly is fixed reliably and can be prevented from loosening in the operation process, additional adhesive tape is not needed for fixing, the reinforcing piece is fixed through the handle and does not need to be bonded, fixing is reliable, and the effect of reinforcing the door shell can be effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art

[0002] Most of the doors of refrigerators currently on the market are flip-open and flip-closed. When using the refrigerator, the user drives the door to rotate relative to the refrigerator body, thereby opening the refrigerator to take out and put in items.

[0003] In order to facilitate the opening and closing of the refrigerator door, a handle with an inwardly concave buckle is provided on the refrigerator door, and a handle installation opening is correspondingly provided on the door shell of the refrigerator door. When producing the refrigerator door, after the handle is installed in the handle installation opening of the door shell, in order to prevent the foam material of the door body from leaking, sponge is used to seal the joint between the handle and the handle installation opening of the door shell; at the same time, during the transportation of the door shell, tape is used to fix the handle to the door shell from the outside to prevent the handle from falling off. The existing handle installation structure of the refrigerator door requires a large amount of sponge and tape, and the sponge and tape need to be applied manually, which is inefficient and cannot guarantee consistency. It requires high proficiency of employees, and when the sponge and tape are not sealed firmly, it may cause leakage and misalignment of the handle, resulting in rework and scrapping, affecting normal use by users.

[0004] At the same time, for large-sized doors, the handle installation needs to be placed at the door shell opening, where the door shell strength is relatively weak. When used in a low-temperature environment, the door shell may deform, and a reinforcing iron needs to be placed at the handle to strengthen the door body. This reinforcing iron needs to be attached to the door shell using double-sided tape, which has high labor costs and poor adhesion. When the door shell is transported, the reinforcing iron is easily displaced and loses its function of reinforcing the door shell.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the problems pointed out in the background technology, the utility model provides a refrigerator, wherein the door handle and the handle installation opening on the door shell are reliably sealed, the handle is firmly fixed, and the reinforcing member can effectively ensure the reinforcing effect of the door shell at the handle installation location.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0008] In some embodiments of the present application, a refrigerator is provided, comprising a door body and a box body, wherein the door body comprises:

[0009] A door shell, wherein the door shell is provided with a handle installation opening communicated with the interior of the door body;

[0010] A handle assembly comprises a handle and a reinforcement member, wherein the handle comprises a buckle portion and a circumferential limiting portion connected to the periphery of the buckle portion, the buckle portion being embedded in the handle mounting opening, a first clamping portion and a first annular sealing surface arranged around the periphery of the buckle portion being formed on the inner wall of the buckle portion, the first annular sealing surface being fitted and fitted with the handle mounting opening and extending into the door body, and the circumferential limiting portion abuts against the outer wall of the door shell around the handle mounting opening; the reinforcement member is located inside the door body, and a second clamping portion and a second annular sealing surface are formed thereon, the second clamping portion is clamped with the first clamping portion, and the reinforcement member abuts against the inner wall of the door shell around the handle mounting opening; the second annular sealing surface is arranged around the outside of the first annular sealing surface, and a labyrinth sealing structure is formed between the second annular sealing surface and the first annular sealing surface for sealing the gap between the second annular sealing surface and the first annular sealing surface.

[0011] The refrigerator in the embodiment of the present application has a door handle assembly including a handle and a reinforcement member, which are clamped together by a first clamping portion on the handle buckle portion and a second clamping portion on the reinforcement member to fix the handle assembly and prevent it from loosening, without the need for additional tape fixation; at the same time, the reinforcement member and the circumferential limiting portion of the handle respectively abut against the door shell from the inner and outer sides of the door shell outside the handle installation opening, and a first annular sealing surface is arranged on the outer periphery of the buckle portion, the first annular sealing surface is adapted to fit the handle installation opening and extends into the door body, that is, it is located at the joint between the buckle portion and the handle installation opening, and a second annular sealing surface is correspondingly arranged on the reinforcement member, the second annular sealing surface is wound around the outer side of the first annular sealing surface, and a labyrinth sealing structure is formed between the second annular sealing surface and the first annular sealing surface to seal the gap between the second annular sealing surface and the first annular sealing surface, thereby ensuring the sealing of the circumferential gap between the buckle portion and the handle installation opening, effectively reducing the situation of foaming leakage; at the same time, the handle also fixes the reinforcement member to fix its position in the door body, which can effectively play a role in strengthening the door shell.

[0012] In some embodiments of the present application, the reinforcement member includes a foaming accommodating cavity for accommodating a foaming material, the foaming accommodating cavity is open at least to the side where the handle is located, and a foam injection hole is formed on the cavity wall of the foaming accommodating cavity;

[0013] An annular frame is formed at the opening of the foaming accommodating cavity, the buckle portion is embedded in the foaming accommodating cavity through the annular frame, and the second annular sealing surface is the inner annular surface of the annular frame.

[0014] Through the above structure, after the handle assembly is installed in place, when the door body is foamed, the foaming material can enter the foaming accommodating cavity through the foaming hole, and finally the reinforcement is buried in the foaming layer of the door body, so as to ensure the thermal insulation effect of the door body; and the foaming material can further push the reinforcement to support against the inner wall of the door shell outside the handle installation port, so as to further enhance the reinforcement effect on the door shell; by forming an annular frame at the opening of the foaming accommodating cavity, on the one hand, it is convenient to form a second annular sealing surface, and on the other hand, it can also enhance the structural strength of the reinforcement.

[0015] In some embodiments of the present application, the labyrinth sealing structure is formed on the second annular sealing surface, and includes multiple circles of annular protrusions protruding from the second annular sealing surface. The multiple circles of annular protrusions are arranged at axial intervals along the second annular sealing surface and are all arranged around the periphery of the first annular sealing surface; the first annular sealing surface is a plane.

[0016] Multiple circles of small chambers can be formed between the second annular sealing surface and the first annular sealing surface, and adjacent chambers are separated by annular protrusions. When the foamed material entering the reinforcement subsequently enters the small chamber, a vortex will be formed. Driven by the vortex, part of the foamed material will move in the opposite direction, reducing the amount and flow rate of the foamed material flowing forward. The kinetic energy of the foamed material moving in the opposite direction and the foamed material continuing to flow in from the back will offset each other, and this offset will help to increase the formation of vortex here. Through the action of the labyrinth sealing structure, the flow rate and flow rate of the foamed material flowing to the gap between the buckle part and the handle installation port can be reduced, thereby playing a sealing role.

[0017] In some embodiments of the present application, a plurality of protrusions are arranged on the outer circumferential surface of the first annular sealing surface, and the protrusions are arranged corresponding to the annular protrusions of the outermost circle and abut against the annular protrusions of the outermost circle, thereby increasing the friction between the annular protrusions of the outermost circle and the first annular sealing surface, which is beneficial to ensuring the stability and reliability of the connection between the handle and the reinforcement.

[0018] In some embodiments of the present application, the annular frame is flush with the opening of the foam accommodating cavity, and the foam accommodating cavity rests with its opening side against the inner wall of the door shell outside the handle mounting opening. The annular frame also rests against the inner wall of the door shell outside the handle mounting opening, further enhancing the reinforcement effect on the door shell.

[0019] In some embodiments of the present application, the extension direction of the foaming accommodating cavity is parallel to the extension direction of the handle, and both ends of the foaming accommodating cavity are also open, that is, the two ends of the foaming accommodating cavity are not closed, which further facilitates the foaming material to enter the internal space of the reinforcement and improves the foaming effect and the thermal insulation effect of the door body.

[0020] In some embodiments of the present application, the first clamping portion includes a V-shaped clamping portion, which is protruding toward the side where the reinforcement is located and the V-shaped opening faces the reinforcement, and the second clamping portion is a clamping hole, and the clamping hole has an inclined surface adapted to the V-shaped clamping portion;

[0021] Both ends of the V-shaped buckle portion are provided with limiting hook portions, the V-shaped buckle portion is interference fit in the clamping hole, and the limiting hook portions are hooked on the reinforcing member.

[0022] By adopting the first clamping part and the second clamping part of this structural form, after the handle is installed in the handle installation opening, as the subsequent reinforcement is installed, the V-shaped clamping part is gradually inserted into the clamping hole, until the limiting hook part passes through the clamping hole and is finally hooked on the reinforcement. The interference extrusion pressure between the V-shaped clamping part and the clamping hole forms a fixation for the handle and the reinforcement, which ensures that the handle will not loosen during transportation and at the same time ensures the reinforcement effect of the reinforcement on the door shell.

[0023] In some embodiments of the present application, a plurality of the first clamping portions are provided along the extension direction of the buckle portion, and a plurality of the second clamping portions are provided correspondingly to improve the clamping reliability.

[0024] In some embodiments of the present application, the first clamping portion further includes a connecting portion, the V-shaped clamping portion is formed on the connecting portion, the connecting portion is connected to the inner wall of the buckle portion, and a foam material flow opening is reserved at the connecting portion between the connecting portion and the buckle portion. In this way, the distance between the reinforcement and the buckle portion of the handle can be shortened, which is beneficial to reducing the volume of the entire handle assembly, so as to reduce the occupation of the foaming space inside the door body. The connecting portion between the connecting portion and the buckle portion has a foam material flow opening, which can avoid the formation of a dead angle between the connecting portion and the buckle portion, thereby preventing the formation of a hollowing phenomenon in the foaming layer.

[0025] In some embodiments of the present application, the reinforcement is an integral injection-molded structure.

[0026] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment;

[0029] Figure 2 is a schematic structural diagram of a refrigerator door according to an embodiment;

[0030] Figure 3 This is a schematic structural diagram of a refrigerator door body according to an embodiment after omitting the handle assembly;

[0031] Figure 4 is a front view of a refrigerator door according to an embodiment;

[0032] Figure 5 for Figure 4 AA section view;

[0033] Figure 6 for Figure 5 A magnified view of part B;

[0034] Figure 7 It is a schematic structural diagram of the matching position between the handle assembly of the refrigerator door and the door shell according to the embodiment;

[0035] Figure 8 for Figure 7 Schematic diagram of the structure after omitting the reinforcement;

[0036] Fig. 9 This is a schematic diagram of the assembly structure of the refrigerator door handle assembly according to the embodiment;

[0037] Fig.10 for Fig. 9 Exploded diagram of

[0038] Fig.11 is a cross-sectional view of the matching structure of the handle and the reinforcement member according to the embodiment;

[0039] Fig.12 is a schematic diagram of a handle structure of a refrigerator door according to an embodiment;

[0040] Fig.13 for Fig.12 Enlarged view of part C;

[0041] Fig.14 is a schematic diagram of the structure of a reinforcement member of a refrigerator door according to an embodiment;

[0042] Fig.15 for Fig.14 DD cross-section diagram.

[0043] Reference numerals:

[0044] 1. Door body; 100. Handle assembly; 110. Handle; 111. Handle buckle; 112. Circumferential limiting portion; 113. First clamping portion; 1131. V-shaped clamping portion; 1132. Connecting portion; 1133. Limiting hook portion; 1134. Foaming material flow port; 114. First annular sealing surface; 115. Top positioning portion; 116. Protrusion; 120. Reinforcement member; 121. Second clamping portion; 122. Second annular sealing surface; 123. Foaming accommodating cavity; 124. Foam injection hole; 125. Annular frame; 126. Labyrinth sealing structure; 127. Wedge-shaped protrusion; 200. Door shell; 210. Handle installation port; 300. Door liner;

[0045] 2. Cabinet body. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0052] In some embodiments of the present application, reference Figure 1 , a refrigerator is provided, which includes a cabinet body 2 and a door body 1.

[0053] A freezing chamber is formed inside the cabinet 2, and the top or front side of the cabinet 2 is open to form a loading and unloading port communicating with the freezing chamber.

[0054] One side of the door body 1 is the installation side, and the door body 1 is rotatably connected to the box body through the installation side. The other side of the door body 1 opposite to the installation side is the opening and closing side, and the door body 1 can open or close the access opening through the opening and closing side.

[0055] The door body 1 includes a door shell 200 and a door liner 300 disposed inside the door shell 200. Figure 2 Schematic diagram of the structure of the refrigerator door according to the embodiment. Figure 2 The door body 1 includes a door shell 200 constituting the outer surface of the door body 1, a door liner 300 arranged on the inner side of the door shell 200, and a handle assembly 100 arranged on the door shell 200. The door shell 200 and the door liner 300 surround the inner space of the door body, and the inner space of the door body is foamed to form a foam layer by foaming the foam material.

[0056] During the production process of the door body 1, after the door body 1 is assembled, a foaming material is injected into the internal space of the door body. The foaming material will expand rapidly and fill the internal space of the door body. After the foaming material is solidified, a foaming layer is formed. The foaming layer has the effect of heat preservation and heat insulation, which can reduce the heat exchange between the cold air in the cabinet body 2 and the outside through the door body 1, thereby improving the refrigeration effect of the refrigerator.

[0057] Figure 3 FIG. 1 is a schematic diagram of the structure of the refrigerator door after the handle assembly 100 is omitted according to the embodiment, referring to FIG. Figure 3 , while combining Figure 2 The door shell 200 is provided with a handle installation opening 210 which is communicated with the inner space of the door body, and the handle assembly 100 is installed in the handle installation opening 210 .

[0058] In some embodiments of the present application, the refrigerator is a rectangular horizontal refrigerator, the door body 1 is located at the top of the box, the rear side of the door body 1 is its installation side, the front side is its opening and closing side, the handle installation opening 210 is provided on the front side plate among the circumferential side plates of the door shell 200, and the handle assembly 100 is installed on the front side plate among the circumferential side plates of the door shell 200, so as to facilitate the user to open or close the door body 1 from the opening and closing side of the door body 1. Of course, the refrigerator is also a vertical refrigerator, the door body 1 is located at the front of the box, the left side of the door body 1 is its installation side, and the right side is its opening and closing side, the handle installation opening 210 is provided on the right side plate among the circumferential side plates of the door shell 200, and the handle assembly 100 is installed on the right side plate among the circumferential side plates of the door shell 200.

[0059] Reference Figures 4 to 15 In some embodiments of the present application, the handle assembly 100 includes a handle 110 and a reinforcement member 120 , and the handle 110 includes a buckle portion 111 and a circumferential limiting portion 112 connected to the periphery of the buckle portion 111 .

[0060] The buckle portion 111 is recessed into the internal space of the door body and embedded in the handle installation opening 210. A first clamping portion 113 and a first annular sealing surface 114 wrapped around the outer periphery of the buckle portion 111 are formed on the inner wall of the buckle portion 111 (the surface of the buckle portion 111 facing the internal space of the door body is its inner wall, and the surface facing the outside is its outer wall). The first annular sealing surface 114 fits closely with the handle installation opening 210 and extends into the interior of the door body 1.

[0061] The circumferential limiting portion 112 of the handle 110 abuts against the outer wall of the door shell 200 outside the handle installation opening 210. Taking the case where the handle assembly 100 is installed on the front side plate among the circumferential side plates of the door shell 200 as an example, the circumferential limiting portion 112 is located on the outer side of the front side plate of the door shell 200 and abuts against the front side plate of the door shell 200.

[0062] The reinforcement 120 is located inside the refrigerator door body 1, and is formed with a second clamping portion 121 and a second annular sealing surface 122. The second clamping portion 121 is clamped with the first clamping portion 113, and the reinforcement 120 abuts against the inner wall of the door shell 200 outside the handle mounting opening 210. Taking the handle assembly 100 installed on the front side plate among the circumferential side plates of the door shell 200 as an example, the reinforcement 120 is located on the inner side of the front side plate of the door shell 200 and abuts against the front side plate of the door shell 200.

[0063] The second annular sealing surface 122 is disposed around the outside of the first annular sealing surface 114 , and a labyrinth sealing structure 126 is formed between the second annular sealing surface 122 and the first annular sealing surface 114 for sealing the gap between the second annular sealing surface 122 and the first annular sealing surface 114 .

[0064] When assembling the handle assembly 100, take a processed door shell 200, install the handle 110 from the outside of the door shell 200 into the handle installation port 210 until its circumferential limit portion 112 abuts against the outer wall of the front side plate of the door shell 200, and then take a reinforcement 120, align the second clamping portion 121 with the first clamping portion 113 from the inside of the door shell 200, and then install it until the second clamping portion 121 is clamped with the first clamping portion 113, and the reinforcement 120 abuts against the inner wall of the front side plate of the door shell 200. At this time, the second annular sealing surface 122 is just located on the periphery of the first annular sealing surface 114, and the labyrinth sealing structure 126 realizes the sealing between the second annular sealing surface 122 and the first annular sealing surface 114.

[0065] The reinforcement 120 and the circumferential limiting portion 112 of the handle 110 respectively abut against the front side plate of the door shell 200 from the inner and outer sides of the front side plate of the door shell 200, and the two interact with each other. The reinforcement 120 ensures the fixation of the handle 110, so that the handle 110 will not get loose during transportation, and there is no need to use additional tape to fix it; at the same time, the handle 110 also fixes the reinforcement 120, so that the position of the reinforcement 120 in the door body 1 is fixed and the abutment force against the front side plate of the door shell 200, so that it can effectively play the role of strengthening the door shell 200.

[0066] A first annular sealing surface 114 is arranged on the periphery of the buckle portion 111. The first annular sealing surface 114 is adapted to fit with the handle mounting opening 210 and extends into the interior of the door body 1, i.e., it is located at the joint between the buckle portion 111 and the handle mounting opening 210. A second annular sealing surface 122 is correspondingly arranged on the reinforcement 120. The second annular sealing surface 122 is arranged around the outside of the first annular sealing surface 114. A labyrinth sealing structure 126 is formed between the second annular sealing surface 122 and the first annular sealing surface 114 to seal the gap between the second annular sealing surface 122 and the first annular sealing surface 114, thereby ensuring the sealing of the circumferential gap between the buckle portion 111 and the handle mounting opening 210, and effectively reducing the situation of foaming leakage.

[0067] In some embodiments of the present application, Figure 6 , Figures 9 to 12 As shown, the circumferential limiting portion 112 is connected to a top positioning portion 115, and the top positioning portion 115 is bent and connected to the top of the circumferential limiting portion 112. When the handle 110 is installed on the door shell 200, the circumferential limiting portion 112 abuts against the outer wall of the door shell 200 outside the handle installation opening 210, specifically located on the outer wall of the front side plate of the door shell 200, and the top positioning portion 115 abuts against the top surface of the door shell 200, so that the top positioning portion 115 overlaps the top of the door body 1, ensuring that the handle 110 is stably fixed to the handle installation opening 210 of the door body 1.

[0068] In some embodiments of the present application, Figures 6 to 11 As shown, the reinforcement 120 includes a foaming accommodating cavity 123, which is used to allow foaming material to enter and then accommodate the foaming material when the door body 1 is foaming. The foaming accommodating cavity 123 is open at least to the side where the handle 110 is located, and a foaming hole 124 is formed on the cavity wall of the foaming accommodating cavity 123.

[0069] An annular frame 125 is formed at the opening of the foaming accommodating cavity 123 . The buckle portion 111 extends into the foaming accommodating cavity 123 through the handle installation opening 210 and the annular frame 125 . The second annular sealing surface 122 is the inner annular surface of the annular frame 125 .

[0070] Through the above structure, after the handle assembly 100 is installed in place, when the door body 1 is foamed, the foaming material can enter the foaming accommodating cavity 123 through the foaming hole 124, and finally the reinforcement 120 is buried in the foaming layer of the door body 1, so as to ensure the thermal insulation effect of the door body 1; and the foaming material can further push the reinforcement 120 to support against the inner wall of the door shell 200 outside the handle installation port 210, so as to further enhance the reinforcement effect on the door shell 200; by forming an annular frame 125 at the opening of the foaming accommodating cavity 123, on the one hand, it is convenient to form the second annular sealing surface 122, and on the other hand, it can also enhance the structural strength of the reinforcement 120.

[0071] like Fig. 9 , Fig.10 and Fig.14 As shown, there are a plurality of bubble injection holes 124 which are spaced apart along the length direction of the reinforcement member 120 . The plurality of bubble injection holes 124 may be disposed on the bottom plate of the reinforcement member 120 (ie, the side plate opposite to the handle 110 ).

[0072] like Figure 6 , Fig.10 and Fig.11As shown, in some embodiments of the present application, the labyrinth sealing structure 126 is provided. Specifically, the labyrinth sealing structure 126 is formed on the second annular sealing surface 122, and includes a plurality of annular protrusions protruding from the second annular sealing surface 122. The plurality of annular protrusions are arranged at axial intervals along the second annular sealing surface 122 and are all arranged around the periphery of the first annular sealing surface 114; the first annular sealing surface 114 is configured as a plane.

[0073] Multiple circles of small chambers can be formed between the second annular sealing surface 122 and the first annular sealing surface 114, and adjacent chambers are separated by annular protrusions. When the foamed material entering the reinforcement 120 subsequently enters the small chamber, a vortex will be formed. Driven by the vortex, part of the foamed material will move in the opposite direction, reducing the amount and flow rate of the foamed material flowing forward. The kinetic energy of the foamed material moving in the opposite direction and the foamed material continuing to flow in from the back will offset each other, and this offset will help to increase the formation of the vortex here. Through the action of the labyrinth sealing structure 126, the flow rate and flow rate of the foamed material flowing to the gap between the buckle part 111 and the handle installation port 210 can be reduced, thereby achieving a sealing effect.

[0074] Of course, the labyrinth sealing structure 126 may also be formed only on the first annular sealing surface 114, specifically located on the outer peripheral surface of the first annular sealing surface 114, in which case the second annular sealing surface 122 may correspond to a plane; or, the labyrinth sealing structure 126 may be arranged on the outer peripheral surface of the first annular sealing surface 114 and on the second annular sealing surface 122 of the reinforcement 120, in which case the labyrinth sealing structure 126 on the outer peripheral surface of the first annular sealing surface 114 may be a plurality of circles of annular protrusions, and correspondingly, the labyrinth sealing structure 126 on the outer peripheral surface of the first annular sealing surface 114 is a plurality of circles of annular grooves, and each annular protrusion is embedded in the corresponding annular groove.

[0075] In some embodiments of the present application, Fig.12 and Fig.13 As shown, a plurality of protrusions 116 are arranged on the outer circumferential surface of the first annular sealing surface 114, and the protrusions 116 are arranged corresponding to the annular protrusions of the outermost circle and abut against the annular protrusions of the outermost circle, thereby increasing the friction between the annular protrusions of the outermost circle and the first annular sealing surface 114, which is beneficial to ensuring the stability and reliability of the connection between the handle 110 and the reinforcement 120.

[0076] In some embodiments of the present application, the top surface of the protrusion 116 has a guiding slope to facilitate the buckle portion 111 to be embedded in the foaming accommodating cavity 123 through the annular frame 125.

[0077] like Figure 6 , Fig.10 and Fig.11As shown, in some embodiments of the present application, the annular frame 125 is flush with the opening of the foam accommodating cavity 123, and the foam accommodating cavity 123 rests with its open side against the inner wall of the door shell 200 outside the handle installation opening 210, specifically against the inner wall of the front side plate of the door shell 200, and the annular frame 125 also rests against the inner wall of the door shell 200 outside the handle installation opening 210, specifically against the inner wall of the front side plate of the door shell 200, thereby further enhancing the reinforcing effect on the door shell 200.

[0078] like Figure 7 , Fig. 9 , Fig.10 and Fig.14 As shown, in some embodiments of the present application, the extension direction of the foaming accommodating cavity 123 is parallel to the extension direction of the handle 110, and both ends of the foaming accommodating cavity 123 are also open, that is, the two ends of the foaming accommodating cavity 123 are not closed, which further facilitates the foaming material to enter the internal space of the reinforcement 120, thereby improving the foaming effect and the thermal insulation effect of the door body 1.

[0079] The cross section of the reinforcement member 120 is generally in a U shape with the opening facing the side where the handle 110 is located, and the injection holes 124 are arranged on the bottom plate thereof.

[0080] like Figure 6 , Figure 8 , Fig.10 , Fig.11 , Fig.12 , Fig.14 and Fig.15 As shown, in some embodiments of the present application, the first clip portion 113 includes a V-shaped clip portion 1131, which protrudes toward the side where the reinforcement 120 is located and the V-shaped opening faces the reinforcement 120, and the second clip portion 121 is a clip hole, and the inner wall of the clip hole has a slope adapted to the V-shaped clip portion 1131.

[0081] The V-shaped buckle portion 1131 has limiting hooks 1133 at both ends. The V-shaped buckle portion 1131 is inserted into the clamping hole by interference fit, and the limiting hooks 1133 are hooked on the reinforcing member 120, specifically on the side of the reinforcing member 120 that is away from the handle 110. Fig.10 The left side of the reinforcement member 120 is shown.

[0082] In some embodiments of the present application, a wedge-shaped protrusion 127 corresponding to each V-shaped buckle portion 1131 is formed on the side of the reinforcement member 120 that is away from the handle 110. The wedge-shaped protrusion 127 has an inclined surface adapted to the V-shaped buckle portion 1131 and a limiting vertical plane matched with the limiting hook portion 1133. After the limiting hook portion 1133 passes over the second clamping portion 121, it is finally hooked on the wedge-shaped protrusion 127. By providing the wedge-shaped protrusion 127, on the one hand, the contact area between the second clamping portion 121 and the V-shaped buckle portion 1131 is increased, and the clamping reliability is improved. On the other hand, a reliable stopping and limiting effect is provided for the limiting hook portion 1133.

[0083] With the first clamping portion 113 and the second clamping portion 121 of this structural form, after the handle 110 is installed in the handle installation opening 210, as the reinforcement 120 is subsequently installed, the V-shaped clamping portion 1131 is gradually inserted into the clamping hole until the limiting hook portion 1133 passes through the clamping hole and is finally hooked on the reinforcement 120. The interference fit extrusion pressure between the V-shaped clamping portion 1131 and the clamping hole forms a mutual fixation between the handle 110 and the reinforcement 120. At the same time, under the limiting action of the limiting hook portion 1133, it is ensured that the handle 110 will not loosen during transportation, and at the same time, the reinforcing effect of the reinforcement 120 on the door shell 200 is ensured.

[0084] In some embodiments of the present application, a plurality of first clamping portions 113 are symmetrically arranged along the extension direction of the buckle portion 111 , and a plurality of second clamping portions 121 are correspondingly arranged to improve the clamping reliability.

[0085] Of course, the shapes of the first clamping portion 113 and the second clamping portion 121 may also be other compatible shapes, and the number thereof may also be other numbers, and no specific limitation is made here.

[0086] like Fig.11 and Fig.12 As shown, in some embodiments of the present application, the first snap-fit ​​portion 113 also includes a connecting portion 1132, a V-shaped snap-fit ​​portion 1131 is formed on the connecting portion 1132, and the connecting portion 1132 is connected to the inner wall of the buckle portion 111 to shorten the distance between the reinforcement 120 and the buckle portion 111 of the handle 110, thereby reducing the volume of the entire handle assembly 100, thereby reducing the occupation of the foaming space inside the door body 1.

[0087] In some embodiments of the present application, a foam material flow port 1134 is reserved at the connection portion between the connection portion 1132 and the buckle portion 111, so as to avoid the formation of a dead angle between the connection portion 1132 and the buckle portion 111, thereby preventing the formation of hollowing in the foam layer.

[0088] In some embodiments of the present application, since the reinforcement member 120 has a reliable reinforcing effect on the door shell 200, there is no need to use reinforcing iron as in the prior art. The reinforcement member 120 can be made of plastic, such as ABS, that is, the reinforcement member 120 is an integrated injection molding structure, which further reduces costs.

[0089] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0090] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigerator, characterized in that: It includes a door body and a box body, and the door body includes: A door shell, wherein the door shell is provided with a handle installation opening communicated with the interior of the door body; A handle assembly comprises a handle and a reinforcement member, wherein the handle comprises a buckle portion and a circumferential limiting portion connected to the periphery of the buckle portion, the buckle portion being embedded in the handle mounting opening, a first clamping portion and a first annular sealing surface arranged around the periphery of the buckle portion being formed on the inner wall of the buckle portion, the first annular sealing surface being fitted and fitted with the handle mounting opening and extending into the door body, and the circumferential limiting portion abuts against the outer wall of the door shell around the handle mounting opening; the reinforcement member is located inside the door body, and a second clamping portion and a second annular sealing surface are formed thereon, the second clamping portion is clamped with the first clamping portion, and the reinforcement member abuts against the inner wall of the door shell around the handle mounting opening; the second annular sealing surface is arranged around the outside of the first annular sealing surface, and a labyrinth sealing structure is formed between the second annular sealing surface and the first annular sealing surface for sealing the gap between the second annular sealing surface and the first annular sealing surface.

2. The refrigerator according to claim 1, characterized in that: The reinforcement member includes a foaming accommodating cavity for accommodating a foaming material, the foaming accommodating cavity is open at least to the side where the handle is located, and a foam injection hole is formed on the cavity wall of the foaming accommodating cavity; An annular frame is formed at the opening of the foaming accommodating cavity, the buckle portion is embedded in the foaming accommodating cavity through the annular frame, and the second annular sealing surface is the inner annular surface of the annular frame.

3. The refrigerator according to claim 2, characterized in that: The labyrinth sealing structure is formed on the second annular sealing surface, and includes multiple circles of annular protrusions protruding from the second annular sealing surface. The multiple circles of annular protrusions are arranged at intervals along the axial direction of the second annular sealing surface and are all arranged around the periphery of the first annular sealing surface; the first annular sealing surface is a plane.

4. The refrigerator according to claim 3, characterized in that: A plurality of convex points are arranged on the outer circumferential surface of the first annular sealing surface, and the convex points are arranged corresponding to the annular protrusions of the outermost circle and abut against the annular protrusions of the outermost circle.

5. The refrigerator according to claim 2, characterized in that: The annular frame is flush with the opening of the foaming accommodating cavity, the foaming accommodating cavity abuts with its opening side on the inner wall of the door shell around the handle installation opening, and the annular frame also abuts on the inner wall of the door shell around the handle installation opening.

6. The refrigerator according to claim 2, characterized in that: The extending direction of the foaming accommodating cavity is parallel to the extending direction of the handle, and both ends of the foaming accommodating cavity are also open.

7. The refrigerator according to claim 1, characterized in that: The first clamping portion includes a V-shaped clamping portion, which is protruding toward the side where the reinforcement is located and the V-shaped opening faces the reinforcement, and the second clamping portion is a clamping hole, and the clamping hole has an inclined surface adapted to the V-shaped clamping portion; Both ends of the V-shaped buckle portion are provided with limiting hook portions, the V-shaped buckle portion is interference fit in the clamping hole, and the limiting hook portions are hooked on the reinforcing member.

8. The refrigerator according to claim 7, characterized in that: A plurality of the first clamping portions are arranged along the extending direction of the buckle portion, and a plurality of the second clamping portions are arranged correspondingly.

9. The refrigerator according to claim 7, characterized in that: The first clamping portion also includes a connecting portion, the V-shaped clamping portion is formed on the connecting portion, the connecting portion is connected to the inner wall of the buckle hand portion, and a foaming material flow opening is reserved at the connecting portion between the connecting portion and the buckle hand portion.

10. The refrigerator according to claim 1, characterized in that: The reinforcement member is an integral injection-molded structure.

Images