Connecting assembly, refrigerator door and refrigerator

Abstract

The utility model discloses a connecting assembly, a refrigerator door and a refrigerator. The connecting assembly comprises a base and a matching part. The base is provided with a connecting hole, and at least one positioning part is arranged on the inner wall of the connecting hole. And at least one positioning matching part is arranged on the outer wall of the matching piece. Wherein the positioning part is provided with a dismounting part and a fixing part, and the dismounting part and the fixing part are connected in a staggered mode in the axial direction of the connecting hole. In the process that the matching piece is installed on the base, the matching piece is inserted into the connecting hole, so that the positioning matching part rotates into the fixing part through the dismounting part, and the matching piece and the base are fixed. And when the positioning matching part rotates out of the fixing part to the dismounting part, the fixed matching of the matching piece and the base is released, and the matching piece and the base can be detached. According to the connecting assembly, the connecting mode between the box door and the water outlet nozzle can be optimized, a user can detach, replace or clean the water outlet nozzle conveniently, and the use experience of the user is improved.

Description

Technical Field

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

[0002] A refrigerator is a common refrigeration device in people's lives. The refrigerator mainly stores food or other items by maintaining a constant low temperature. With the continuous development of technology, refrigerators have more and more additional functions. In the related art, a refrigerator has a water dispenser function. The door of such a refrigerator usually includes a water bottle, a water outlet and a tongue. The water bottle is installed inside the door, the tongue is rotatably arranged outside the door, the door has a door hole, and the water outlet is connected between the water bottle and the tongue through the door hole. The user presses the tongue to control the water outlet to open the water outlet of the water bottle, so that the user can directly drink the cold water produced by the refrigeration function of the refrigerator.

[0003] However, usually the water outlet and the door body of the door are integrally arranged, and it is difficult for the user to disassemble and replace the water outlet from the door or clean the water outlet, which not only has a high maintenance cost, but also affects the hygiene of the user's water intake, and the user experience is poor. Summary of the Utility Model

[0004] The utility model provides a connecting component, a door and a refrigerator, which can optimize the connection mode between the door and the water outlet, facilitate the user to disassemble, replace or clean the water outlet, and improve the user experience.

[0005] The technical solution adopted by the utility model is as follows:

[0006] According to the first aspect disclosed by the utility model, a connecting component is provided, which includes a base and a fitting. The base has a connecting hole, and at least one positioning part is arranged on the inner wall of the connecting hole. At least one positioning and fitting part is arranged on the outer wall of the fitting. Among them, the positioning part is provided with a disassembly part and a fixing part, and the disassembly part and the fixing part are misaligned and connected along the axial direction of the connecting hole. During the process of installing the fitting onto the base, the fitting is inserted into the connecting hole, so that the positioning and fitting part rotates through the disassembly part and into the fixing part to fix the fitting and the base. When the positioning and fitting part rotates out of the fixing part and into the disassembly part, the fixed cooperation between the fitting and the base is released, and the fitting and the base can be disassembled.

[0007] The connecting component provided by the utility model has the following beneficial effects:

[0008] When the connecting component is in use, the positioning mating part and the positioning part are misaligned during installation. By rotating the mating part relative to the base, the position between the positioning mating part and the positioning part can be changed, thereby realizing the disassembly and locking of the mating part and the base. When the connecting component is installed between the door of the refrigerator and the water outlet nozzle, the user only needs to rotate the mating part relative to the base to detach the water outlet nozzle from the door of the refrigerator. The disassembly and assembly are simple and convenient, saving time and effort. Thus, it is convenient for the user to detach the water outlet nozzle from the door of the refrigerator through the connecting component, so as to replace or clean the water outlet nozzle, reduce the maintenance cost of the water outlet nozzle, and ensure the hygiene of the user's water intake, thereby enhancing the user experience.

[0009] In addition, the connecting component provided by the present utility model is not limited to being used between the door of the refrigerator and the water outlet nozzle. The connecting component can also be installed between the body of the water dispenser and the water outlet nozzle of the water dispenser, between the cup body and the cup cover, and between any other parts and devices that the user wants to disassemble. The present utility model does not make any restrictions.

[0010] The technical solution will be further described below:

[0011] In one embodiment, one of the positioning part and the positioning mating part is set as a groove, and the other of the positioning part and the positioning mating part is set as a convex block. The disassembly part and the fixing part are arranged in the groove.

[0012] In one embodiment, the convex block has elasticity, and the convex block generates elastic deformation in at least one of the fixing part and the disassembly part to limit the movement of the convex block between the disassembly part and the fixing part.

[0013] In one embodiment, the groove includes a guiding part, and the guiding part is connected between the disassembly part and the fixing part. The convex block generates elastic deformation when passing through the guiding part, and the convex block restores elastic deformation when it is in the disassembly part or the fixing part.

[0014] In one embodiment, the guiding part is provided with a guiding surface, and the guiding surface extends along the circumferential direction of the connecting hole. The convex block is provided with a guiding mating surface that cooperates with the guiding surface, and the extending direction of the guiding mating surface is the same as that of the guiding surface.

[0015] In one embodiment, the guiding surface includes a first inclined surface and a second inclined surface. The first inclined surface and the second inclined surface are connected along the circumferential direction of the connecting hole and have opposite inclination directions. The guiding mating surface includes a first mating inclined surface and a second mating inclined surface. The first mating inclined surface cooperates with the first inclined surface, and the second mating inclined surface is connected to the first mating inclined surface and cooperates with the second inclined surface.

[0016] In one embodiment, the guiding surface is set as a first arc convex surface, and the first arc convex surface protrudes from the inner wall of the guiding part along the axial direction of the connecting hole. The guiding mating surface is set as a second arc convex surface, and the second arc convex surface protrudes from the outer wall of the convex block along the axial direction of the connecting hole.

[0017] In one embodiment, a limiting portion is further provided on the inner wall of the connection hole, and a limiting and mating portion is further provided on the outer wall of the mating member. When the limiting portion and the limiting and mating portion cooperate with each other, the bump can switch positions between the disassembly portion and the fixing portion.

[0018] In one embodiment, the limiting portion protrudes radially from the inner wall of the connection hole, and the limiting and mating portion protrudes from the outer wall of the mating member. In the axial direction along the connection hole, at least a part of the limiting portion and the limiting and mating portion overlap, so that the limiting portion and the limiting and mating portion press against each other for cooperation.

[0019] In one embodiment, the positioning portion is provided as a groove, and the positioning and mating portion is provided as a bump. The positioning and mating portion is connected to the limiting and mating portion, and the positioning and mating portion protrudes radially from the limiting and mating portion along the connection hole.

[0020] In one embodiment, the disassembly portion has a first open end and a first closed end that are axially spaced along the connection hole. In the axial direction along the connection hole, the first closed end and the limiting portion are provided at the same height.

[0021] In one embodiment, the fixing portion has two groove walls that are axially spaced along the connection hole, and the distance between the two groove walls is greater than the thickness of the bump, so that the bump can move axially within the fixing portion along the connection hole.

[0022] In one embodiment, the fixing portion has a second open end and a second closed end that are axially spaced along the connection hole. The opening directions of the first open end and the second open end are opposite. In the axial direction along the connection hole, the second closed end is provided between the first open end and the first closed end to limit the axial movement distance of the bump through the second closed end and the limiting portion.

[0023] According to the second aspect disclosed in the present invention, a box door is provided, which includes a door body, a liquid outlet component, and the above-mentioned connection assembly. The door body has an inner side of the door, an outer side of the door, and a door hole communicating the inner side of the door and the outer side of the door. The base is installed on the inner side of the door, and the connection hole corresponds to the door hole, so that the mating member is installed in the door hole. The liquid outlet component is arranged in the door hole and connected to the mating member.

[0024] The box door provided by the present invention has the following beneficial effects:

[0025] For the box door provided by the present invention, since the box door is equipped with a connection assembly, through the detachable connection between the mating member and the base, the liquid outlet component can be detached from the box door for the user to clean or replace, ensuring the water-taking hygiene of the user.

[0026] According to the third aspect disclosed by the present utility model, there is provided a refrigerator, including a box body and the above-mentioned door. The box body includes a refrigerating chamber, and the door body is connected to the box body to open and close the refrigerating chamber. Among them, the inner side of the door faces the refrigerating chamber, and the outer side of the door faces away from the refrigerating chamber.

[0027] The refrigerator provided by the present utility model has the following beneficial effects:

[0028] For the refrigerator provided by the present utility model, since the connecting component is installed on the door, through the detachable connection between the fitting and the base, the liquid outlet component can be detached from the door, so as to facilitate the user to clean or replace, ensuring the drinking water hygiene of the user and improving the user experience of the refrigerator. Description of the Drawings

[0029] Figure 1 It is a schematic structural view of the connecting component in the present utility model.

[0030] Figure 2 is Figure 1 The sectional view along B-B in

[0031] Figure 3 is Figure 1 The enlarged view at A in

[0032] Figure 4 It is a schematic structural view of the fitting and the base in the unlocked state in the present utility model.

[0033] Figure 5 It is a schematic structural view of the fitting and the base in the locked state in the present utility model.

[0034] Figure 6 is Figure 5 The rear view of

[0035] Figure 7 It is a schematic structural view of the inside of the connecting hole of the base in the present utility model.

[0036] Figure 8 It is a schematic structural view of the fitting in the present utility model.

[0037] Figure 9 It is a schematic structural view of the assembly of the connecting component and the liquid outlet component in the present utility model.

[0038] Figure 10 It is a schematic structural view of the inside of the door in the present utility model.

[0039] Figure 11 It is a schematic structural view of the refrigerator in the present utility model.

[0040] Reference Signs:

[0041] 1 - Refrigerator; 10 - Liquid storage device; 11 - Liquid storage cavity; 12 - Spool valve; 13 - Liquid outlet hole; 20 - Liquid outlet component; 20a - Liquid outlet channel; 21 - Liquid outlet housing; 22 - Liquid outlet core; 23 - Elastic connecting piece; 30 - Connection assembly; 31 - Fitting; 311 - Positioning fitting part; 3111 - Guiding fitting surface; 312 - Limiting fitting part; 313 - Cavity; 314 - Inlet connection end; 315 - Outlet connection end; 316 - Bearing part; 3161 - Connection part; 3162 - Insertion part; 32 - Base; 321 - Connection hole; 322 - Positioning part; 3221 - Disassembly part; 3221a - First open end; 3221b - First closed end; 3222 - Fixing part; 3222a - Second open end; 3222b - Second closed end; 3223 - Guiding part; 3223a - Guiding surface; 323 - Limiting part; 40 - Door of the refrigerator; 41 - Door body; 41a - Door hole; 42 - Distribution component; 42a - Distribution housing; 42b - Force - receiving part; 50 - Box body; 51 - Refrigerating chamber; 52 - Freezing chamber. Detailed implementation manner

[0042] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the present utility model. It should be understood that the accompanying drawings of the present utility model are only for illustrative purposes, and for those skilled in the art, the omission of some well - known structures and their descriptions in the drawings can be understood. At the same time, in the description of the present utility model, if there are descriptions of terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, it is only based on the orientation or position relationship shown in the accompanying drawings, for the convenience of describing the present utility model and for simplified 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. Correspondingly, in the description of the present utility model, there are descriptions involving "first", "second", etc. similar descriptions, which are only used to distinguish different components, and cannot be understood as indicating or implying their relative importance, any order, or implicitly indicating the quantity of the indicated technical features.

[0043] In the related art, a refrigerator with a water dispenser function usually includes a water kettle and a liquid - taking mechanism for taking water from the water kettle. The liquid - taking mechanism usually includes a pressing tongue and a water outlet nozzle. The water kettle is installed inside the door of the refrigerator, the pressing tongue is rotatably arranged outside the door of the refrigerator, the door of the refrigerator has a door hole, and the water outlet nozzle is connected between the water kettle and the pressing tongue through the door hole. The user controls the water outlet nozzle to open the water outlet of the water kettle by pressing the pressing tongue, so that the user can directly drink the cold water produced by the refrigeration function of the refrigerator. In addition, the user can also take out the water kettle from the door of the refrigerator and directly pour the cold water in the water kettle.

[0044] In related technologies, the water outlet nozzle and the refrigerator door are usually set as an integral structure. It is difficult for users to disassemble and replace the water outlet nozzle from the door or clean the water outlet nozzle, which not only results in high maintenance costs, but also affects the hygiene of users' water intake, and the user experience is poor.

[0045] Therefore, the present utility model provides a connection assembly for optimizing the connection mode between the liquid outlet component and the door, facilitating the user to disassemble, replace or clean the liquid outlet component, so as to reduce the maintenance cost of the liquid outlet component for the user and ensure the hygiene of the user's water intake, thereby improving the user experience.

[0046] In addition, the connection assembly provided by the present utility model is not limited to being used between the refrigerator door and the water outlet nozzle. The connection assembly can also be installed between the water dispenser body and the water outlet nozzle of the water dispenser, between the cup body and the cup cover, and between any other parts and devices that the user wants to disassemble, and the present utility model does not make any restrictions.

[0047] The connection assembly provided by the present utility model will be described below.

[0048] See Figures 1 to 3 , the connection assembly 30 provided by the present utility model includes a base 32 and a fitting 31. The base 32 has a connection hole 321, and at least one positioning portion 322 is provided on the inner wall of the connection hole 321. At least one positioning and mating portion 311 is provided on the outer wall of the fitting 31. Among them, the positioning portion 322 includes a disassembly portion 3221 and a fixing portion 3222, and the disassembly portion 3221 and the fixing portion 3222 are misaligned and connected along the axial direction of the connection hole 321. During the process of installing the fitting 31 onto the base 32, the fitting 31 is inserted into the connection hole 321, so that the positioning and mating portion 311 rotates through the disassembly portion 3221 and into the fixing portion 3222 to fix the fitting 31 and the base 32. When the positioning and mating portion 311 rotates out of the fixing portion 3222 and into the disassembly portion 3221, the fixed cooperation between the fitting 31 and the base 32 is released, and the fitting 31 and the base 32 can be disassembled.

[0049] It should be noted that the connection assembly 30 provided by the present utility model has a locked state in which the fitting 31 and the base 32 are fixed and a disassembled state in which the fitting 31 and the base 32 can be disassembled. During the use of the connection assembly 30, the base 32 can be installed on an external device, and the fitting 31 can be installed on the part to be disassembled. Through the misaligned cooperation between the positioning portion 322 and the positioning and mating portion 311, the detachable connection between the base 32 and the fitting 31 is realized, and further the assembly and disassembly between the part to be disassembled and the external device are completed.

[0050] Optionally, one of the positioning portion 322 and the positioning mating portion 311 is set as a bump, and the other is set as a groove, so as to improve the installation efficiency through the mutual engagement of the bump and the groove. Here, an example is given in which the positioning portion 322 of the base 32 is set as a groove and the positioning mating portion 311 of the fitting 31 is set as a bump.

[0051] Refer to Figures 4 to 6 , the X direction is the installation direction in which the fitting 31 and the base 32 are switched from the initial unlocked state to the locked state, and the Y direction is the disassembly direction in which the fitting 31 and the base 32 are switched from the locked state to the unlocked state. When the user installs the fitting 31 onto the base 32, the bump of the fitting 31 first aligns with the disassembly portion 3221 of the groove on the base 32. The user pushes the fitting 31 into the connection hole 321 under the guidance of the disassembly portion 3221, so that the bump moves forward along the disassembly portion 3221. When the bump moves to the misaligned mating position between the disassembly portion 3221 and the fixing portion 3222, the fitting 31 is inserted into the connection hole 321 in place. At this time, the user rotates the fitting 31 forward, so that the bump rotates from the disassembly portion 3221 of the groove to the fixing portion 3222 of the groove, so as to form a fixed fit with the fixing portion 3222 and the bump, and the fitting 31 is fixed in the connection hole 321 of the base 32. At this time, the connection assembly 30 is in the locked state, and the parts to be disassembled connected by the fitting 31 and the external device connected by the base 32 are fixedly assembled.

[0052] When the user disassembles the fitting 31 from the base 32, the user only needs to rotate the fitting 31 in the reverse direction, so that the bump of the fitting 31 rotates out of the fixing portion 3222 of the groove on the base 32 to the disassembly portion 3221 of the groove, so as to release the fixed fit formed between the bump and the fixing portion 3222. Then move the bump of the fitting 31 in the reverse direction within the disassembly portion 3221 of the groove, and the fitting 31 can be pulled out of the connection hole 321 of the base 32, so as to disassemble the fitting 31 from the base 32. At this time, the connection assembly 30 is in the disassembled state, and the parts to be disassembled connected by the fitting 31 and the external device connected by the base 32 can be disassembled.

[0053] Thus, refer to Figure 9 and Figure 10, when the connecting component 30 is applied to the cabinet door 40, the base 32 is installed on the door body 41 of the cabinet door 40, and the connecting hole 321 of the base 32 corresponds to the door hole 41a of the door body 41. One end of the fitting 31 is connected to the liquid outlet component 20, and the liquid outlet component 20 can be a water outlet nozzle. During the process of the user installing the water outlet nozzle to the cabinet door 40, the user takes the fitting 31, threadedly connects the fitting 31 with the water outlet nozzle to form an integral body, and then inserts the integral body formed by the two into the connecting hole 321 together, so that the water outlet nozzle is arranged in the door hole 41a of the cabinet door 40 and extends out of the door to the outside of the door. Then, the user rotates the fitting 31 in the positive direction, so that the convex block of the fitting 31 rotates to the fixing part 3222 of the groove, and fixes and cooperates the fitting 31 with the base 32, and the connecting component 30 is in a locked state. At this time, the water outlet nozzle is relatively fixed to the cabinet door 40. Then, the user can install the kettle to the base 32 again, and connect the water outlet of the kettle with the water outlet nozzle, so that the water outlet nozzle can cooperate with the pressing tongue on the cabinet door 40 to act on the water outlet of the kettle, so as to facilitate the user to control the opening or closing of the water outlet of the kettle through the pressing tongue and meet the water intake needs of the user.

[0054] Similarly, during the process of the user disassembling the water outlet nozzle from the cabinet door 40, after the user takes the kettle out of the cabinet door 40, the user only needs to rotate the fitting 31 in the reverse direction, and rotate the convex block of the fitting 31 out of the fixing part 3222 of the groove to the disassembly part 3221 of the groove, then the fixation between the fitting 31 and the base 32 can be released. Then, the user pulls out the fitting 31 from the connecting hole 321, and the water outlet nozzle can be taken out together, realizing the disassembly of the water outlet nozzle and the cabinet door 40.

[0055] In this way, the connecting component 30 of the present utility model utilizes the misaligned engagement between the positioning and cooperating part 311 and the positioning part 322, and the position of the convex block between the fixing part 3222 and the disassembly part 3221 can be changed through the rotation action between the fitting 31 and the base 32, thereby realizing the disassembly and locking of the fitting 31 and the base 32. When the connecting component 30 is installed between the cabinet door 40 and the water outlet nozzle, the user only needs to rotate the fitting 31 relative to the base 32 to disassemble the water outlet nozzle from the cabinet door 40. The disassembly and assembly are simple and convenient, time-saving and labor-saving. Thus, through the connecting component 30, it is convenient for the user to replace or clean the water outlet nozzle, reduce the maintenance cost of the water outlet nozzle, and ensure the water intake hygiene of the user, thereby improving the user experience.

[0056] See you later Figure 2, It should also be noted that when the fitting 31 is used to connect the water outlet nozzle, the fitting 31 can be set as a tubular structure such as a sleeve or a pipe joint. At this time, one end of the tubular structure is set as the inlet connection end 314, and the other end of the tubular structure is set as the outlet connection end 315. The outlet connection end 315 of the fitting 31 is used to connect the water outlet nozzle, and the outlet connection end 315 and the water outlet nozzle can be fixed by means such as threaded connection, welding or plugging, which is not limited in the present utility model. The inlet connection end 314 of the fitting 31 is used to connect the water outlet of the kettle, and the water outlet of the kettle and the inlet connection end 314 of the fitting 31 can be detachably connected by means such as plugging or magnetic attraction fitting, which is not limited in the present utility model. The cavity 313 of the tubular structure can be used to guide the liquid flowing out of the kettle, or reserve an operation space for the water outlet nozzle to open or close the liquid outlet hole 13.

[0057] When the fitting 31 is installed on other parts to be disassembled, the fitting 31 can be set to other shapes or structures according to specific usage situations, which is not limited in the present utility model.

[0058] In addition, a plurality of positioning parts 322 can be provided on the inner wall of the connection hole 321, and the plurality of positioning parts 322 are arranged at intervals along the circumferential direction of the connection hole 321. Correspondingly, a plurality of positioning and mating parts 311 are provided on the outer wall of the fitting 31, and each positioning and mating part 311 corresponds to each positioning part 322 one by one. With this setting, by increasing the number of the positioning parts 322 and the positioning and mating parts 311, the connection area between the base 32 and the fitting 31 can be increased, thereby improving the connection stability between the base 32 and the fitting 31 in the locked state.

[0059] Among them, the disassembly part 3221 can be set as a vertical groove extending along the axial direction of the connection hole 321, and the fixing part 3222 can be set as a transverse groove extending along the circumferential direction of the connection hole 321 and communicating with the vertical groove. Or, the disassembly part 3221 can be set as a vertical groove extending along the axial direction of the connection hole 321, and the fixing part 3222 is also set as a vertical groove extending along the axial direction of the connection hole 321, and partial side walls of the two vertical grooves are communicated. Or, the disassembly part 3221 and the fixing part 3222 form a spiral groove extending along the axial direction of the connection hole 321. Of course, other shapes that meet the requirements can also be set for the disassembly part 3221 and the fixing part 3222, which is not limited in the present utility model.

[0060] For the cooperation mode of the bump and the groove, in order to facilitate the movement of the bump along the disassembly part 3221, a clearance fit can be set between the bump and the disassembly part 3221. In order to facilitate the locking of the bump and the fixing part 3222, an interference fit can be set between the bump and the fixing part 3222. Or, in order to facilitate the locking of the bump and the fixing part 3222, the bump and the fixing part 3222 can also be magnetically coupled, and the present utility model does not make any restrictions. Therefore, when the fitting 31 and the base 32 are not affected by external forces, as long as the acting force between the bump and the fixing part 3222 can fix the bump and the fixing part 3222 to each other, and when the user disassembles the fitting 31 and the base 32, the user only needs to provide an external force greater than the acting force between the bump and the fixing part 3222.

[0061] See Figure 3 , in some embodiments, in order to facilitate the disassembly and assembly of the fitting 31 and the base 32, the bump is elastic, and the bump can elastically deform in at least one of the fixing part 3222 and the disassembly part 3221.

[0062] It should be noted that the bump can be an elastic body such as a rubber block or a silica gel block that has the ability to elastically deform, and the present utility model does not make any restrictions. As an example, when the extrusion force received by the bump in the fixing part 3222 is greater than the extrusion force received by the bump in the disassembly part 3221, the bump can be fixed in the fixing part 3222 by using the elastic restoring force to lock the base 32 and the fitting 31. Specifically, in order to facilitate the movement of the bump in the disassembly part 3221, the bump may not be extruded in the disassembly part 3221. That is, there is a gap between the bump and the side wall of the disassembly part 3221, and the bump does not elastically deform when moving in the disassembly part 3221. At this time, the user can insert the fitting 31 into the connection hole 321 with less effort and move the bump from the disassembly part 3221 to the fixing part 3222. When the bump moves from the disassembly part 3221 to the fixing part 3222, the bump is extruded by the fixing part 3222 to elastically deform, so that the bump and the fixing part 3222 form a fixed fit, and the base 32 and the fitting 31 are locked by using the elastic restoring force of the bump.

[0063] Or, when the extrusion force received by the bump in the fixing part 3222 is less than the extrusion force received by the bump in the disassembly part 3221, the bump can also be restricted in the fixing part 3222 to lock the fitting 31 and the base 32. Optionally, when the bump moves in the disassembly part 3221, it is in a compressed state, and when the bump is in the fixing part 3222, it is in an uncompressed state. When the bump moves without external force, the elastic restoring force of the bump prevents the bump from moving from the fixing part 3222 to the disassembly part 3221, so the bump is restricted in the fixing part 3222 to lock the base 32 and the fitting 31.

[0064] Alternatively, when the extrusion force exerted on the bump in the fixing portion 3222 is equal to the extrusion force exerted on the bump in the disassembly portion 3221, after the user moves the bump from the disassembly portion 3221 to the fixing portion 3222, the bump can also be restricted within the fixing portion 3222 without being moved by other external forces, so as to lock the fitting 31 and the base 32.

[0065] Of course, the user can also adjust the extrusion forces exerted on the bump in the disassembly portion 3221 and the fixing portion 3222 by adjusting the size of the bump and the groove width of the groove, so as to restrict the movement of the bump between the fixing portion 3222 and the disassembly portion 3221 of the groove. The present utility model will not elaborate on this.

[0066] Thus, when the bump is elastic, as long as the bump undergoes elastic deformation in at least one of the disassembly portion 3221 and the fixing portion 3222, the elastic restoring force of the bump can be utilized to lock the base 32 and the fitting 31. When the user rotates the fitting 31 such that the external force applied to the bump is greater than the elastic restoring force, the locking of the bump and the fixing portion 3222 can be unlocked, and the base 32 and the fitting 31 can be disassembled. In this way, it is convenient for the user to disassemble and assemble the fitting 31 and the base 32, and thus it is convenient to disassemble and assemble the water outlet nozzle on the cabinet door 40.

[0067] See Figure 7 and Figure 8 , in some embodiments, to facilitate the disassembly and assembly of the fitting 31 and the base 32, the groove includes a guiding portion 3223. The guiding portion 3223 is connected between the disassembly portion 3221 and the fixing portion 3222. The bump undergoes elastic deformation when passing through the guiding portion 3223, and the bump restores elastic deformation when it is in the disassembly portion 3221 or the fixing portion 3222.

[0068] It should be noted that the guiding portion 3223 is used to extrude the bump so that the bump generates elastic deformation, and further, without being moved by external forces, the movement of the bump between the fixing portion 3222 and the disassembly portion 3221 is restricted to maintain the locked state of the fitting 31 and the base 32. Optionally, the groove includes two side walls spaced along the axial direction of the connecting hole 321, and at least a part of one of the two side walls protrudes along the axial direction of the connecting hole 321 to form the guiding portion 3223.

[0069] In some embodiments, to facilitate the rotation of the bump between the fixing portion 3222 and the disassembly portion 3221, the guiding portion 3223 is provided with a guiding surface 3223a. The guiding surface 3223a extends along the circumferential direction of the connecting hole 321. The bump is provided with a guiding mating surface 3111 that mates with the guiding surface 3223a, and the extending direction of the guiding mating surface 3111 is the same as that of the guiding surface 3223a.

[0070] It should be noted that through the cooperation between the guiding surface 3223a and the guiding mating surface 3111, when the convex block passes through the guiding portion 3223, the frictional force and resistance between the convex block and the guiding portion 3223 can be reduced, making it easier for the convex block to rotate between the fixing portion 3222 and the detaching portion 3221.

[0071] Among them, the guiding portion 3223 includes a first guiding wall and a second guiding wall arranged at intervals along the axial direction of the connecting hole 321, and at least one of the first guiding wall and the second guiding wall is provided with a guiding surface 3223a. The convex block includes a first mating surface and a second mating surface arranged at intervals along the axial direction of the connecting hole 321, and at least one of the first mating surface and the second mating surface is provided with a guiding mating surface 3111. The present utility model is not limited thereto.

[0072] As an example, the guiding surface 3223a includes a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are connected circumferentially along the connecting hole 321 and have opposite inclination directions. The guiding mating surface 3111 includes a first mating inclined surface and a second mating inclined surface, the first mating inclined surface cooperates with the first inclined surface, and the second mating inclined surface is connected to the first mating inclined surface and cooperates with the second inclined surface.

[0073] With such a setting, the inclination angle of the inclined surface can be used to guide the convex block to pass through the guiding portion 3223. Among them, the first inclined surface is used to guide the convex block to rotate from the detaching portion 3221 to the fixing portion 3222, and the second inclined surface is used to guide the convex block to rotate from the fixing portion 3222 to the detaching portion 3221.

[0074] As an example, the guiding surface 3223a can also be set as a first arc convex surface, the first arc convex surface protrudes from the inner wall of the guiding portion 3223 along the axial direction of the connecting hole 321, and the guiding mating surface 3111 is set as a second arc convex surface, the second arc convex surface protrudes from the outer wall of the convex block along the axial direction of the connecting hole 321.

[0075] With such a setting, the force on the convex block when passing through the guiding portion 3223 is balanced by the arc convex surface, avoiding local stress concentration during the extrusion process between the convex block and the guiding portion 3223, making it easier for the convex block to pass through the guiding portion 3223 to rotate between the fixing portion 3222 and the detaching portion 3221.

[0076] In some embodiments, to remind the user that the convex block can rotate between the fixing portion 3222 and the detaching portion 3221, a limiting portion 323 is further provided on the inner wall of the connecting hole 321, and a limiting mating portion 312 is further provided on the outer wall of the fitting 31. When the limiting portion 323 and the limiting mating portion 312 cooperate with each other, the convex block can switch positions between the detaching portion 3221 and the fixing portion 3222.

[0077] It should be noted that the axial movement distance of the fitting 31 relative to the jack can be restricted by the cooperation between the limiting part 323 and the limiting cooperation part 312. When the fitting 31 is inserted into the connection hole 321, the convex block is aligned with the disassembly part 3221 and moves along the disassembly part 3221. During the movement of the convex block along the disassembly part 3221, when the limiting part 323 and the limiting cooperation part 312 cooperate with each other, a resistance feeling or a snapping sound can be generated between the limiting part 323 and the limiting cooperation part 312 to prompt the user that the fitting 31 is inserted in place in the connection hole 321. At this time, the user can rotate the fitting 31 so that the convex block rotates from the disassembly part 3221 to the fixing part 3222 to lock the fitting 31 and the base 32.

[0078] In addition, through the cooperation between the limiting part 323 and the limiting cooperation part 312, the contact area between the fitting 31 and the base 32 during locking can also be increased to improve the connection stability between the fitting 31 and the base 32 in the locked state.

[0079] As an example, for the convenience of machining the limiting part 323 and the limiting cooperation part 312, the limiting part 323 protrudes radially from the inner wall of the connection hole 321, and the limiting cooperation part 312 protrudes from the outer wall of the fitting 31. In the axial direction of the connection hole 321, at least a part of the limiting part 323 and the limiting cooperation part 312 overlap so that the limiting part 323 and the limiting cooperation part 312 are pressed against each other. That is to say, the limiting part 323 is equivalent to a rib on the inner wall of the connection hole 321, and the limiting cooperation part 312 is equivalent to a rib on the outer wall of the fitting 31. When the two ribs are pressed against each other, the fitting 31 is inserted in place in the connection hole 321.

[0080] Still referring to Figure 7 and Figure 8 , in some embodiments, when the positioning part 322 is set as a groove and the positioning cooperation part 311 is set as a convex block, the positioning cooperation part 311 can be connected to the limiting cooperation part 312, and the positioning cooperation part 311 protrudes radially from the limiting cooperation part 312 along the connection hole 321.

[0081] With such a setting, it is equivalent to arranging the convex block and the limiting cooperation part 312 along the same circumference of the connection hole 321, which can save the installation space of the positioning cooperation part 311 and the limiting cooperation part 312 on the fitting 31, making the structure of the fitting 31 more compact and smaller to meet the installation requirements in a narrow space.

[0082] In some embodiments, for the convenience of disassembling and assembling the fitting 31 and the base 32, the disassembly part 3221 has a first open end 3221a and a first closed end 3221b that are axially spaced along the connection hole 321. In the axial direction of the connection hole 321, the first closed end 3221b and the limiting part 323 are arranged at the same height.

[0083] It should be noted that the bump can be installed in alignment with the disassembly part 3221 through the first open end 3221a, so as to guide the bump into the fixing part 3222 by using the disassembly part 3221 to complete the locking of the fitting 31 and the base 32. The bump can also slide out of the disassembly part 3221 through the first open end 3221a to complete the disassembly of the fitting 31 and the base 32.

[0084] When the first closed end 3221b and the limiting part 323 are set at the same height, it is equivalent to that the first closed end 3221b and the limiting part 323 are arranged along the same circumference of the connecting hole 321. At this time, the first closed end 3221b can also be used to limit the moving distance of the bump in the disassembly part 3221. After the bump abuts against the first closed end 3221b, the user rotates the fitting 31 to rotate the bump from the disassembly part 3221 to the fixing part 3222 to lock the fitting 31 and the base 32.

[0085] In some embodiments, in order to facilitate pulling out the fitting 31 from the connecting hole 321 of the base 32, an anti-slip part is provided on the outer wall of the fitting 31. Among them, a flange protruding beyond the body is provided on the outer wall of the fitting 31, and the flange forms an anti-slip part, so as to facilitate the user to hold the flange and apply an external force to the fitting 31 to disassemble the fitting 31 and the base 32. At the same time, the outer wall of the flange can be set in shapes such as square, circular, oval or polygonal, which is not limited in the present utility model. In this way, when the user rotates the fitting 31, it is possible to apply a circumferential force to the fitting 31 through the flange, so that the bump of the fitting 31 rotates between the fixing part 3222 and the disassembly part 3221 of the groove, and then the fitting 31 and the base 32 are disassembled. In addition, a plurality of anti-slip ribs can be provided on the outer wall of the flange to increase the friction force on the flange, so as to disassemble the fitting 31 and the base 32. Optionally, the anti-slip ribs can be set in shapes such as spiral, wavy or straight, which is not limited in the present utility model.

[0086] In addition, when the fitting 31 is connected to the water outlet nozzle, since the water outlet nozzle is in interference fit with the anti-leak cold silicone structure in the door hole 41a, the resistance is large when the water outlet nozzle is installed and disassembled. Therefore, the anti-slip part on the fitting 31 can also facilitate the user to apply force to the fitting 31 to pull out the water outlet nozzle from the door hole 41a.

[0087] In some cases, a switching valve is provided in the water outlet of the kettle, and the channel of the switching valve is not concentric with the liquid outlet channel 20a of the water outlet nozzle. In this way, when the user does not draw water, the valve core 12 of the switching valve abuts against the water outlet, the water outlet is closed, and the liquid in the kettle cannot flow out. When the user operates the water outlet nozzle to draw water from the kettle, it is necessary to use the water outlet nozzle to lift the valve core 12 of the switching valve, so that the valve core 12 is separated from the water outlet, the water outlet is opened, and the liquid in the kettle can flow out through the water outlet to realize water drawing.

[0088] Therefore, for a kettle with a switching valve, to meet the water intake needs of users, when the connecting component 30 is arranged between the water outlet and the liquid storage container, the fitting 31 needs to be able to move axially along the connecting hole 321 relative to the base 32, so that the fitting 31 can cooperate with the water outlet to lift the valve core 12 of the switching valve in the kettle and realize water intake by the user.

[0089] In some embodiments, in the locked state of the fitting 31 and the base 32, to meet the requirement that the fitting 31 can move axially along the connecting hole 321 relative to the base 32, the fixing part 3222 has two groove walls arranged at intervals along the axial direction of the connecting hole 321, and the distance between the two groove walls is greater than the thickness of the convex block, so that the convex block can move axially within the fixing part 3222 along the connecting hole 321.

[0090] It should be noted that when the convex block is in the fixing part 3222, since the distance between the two groove walls of the fixing part 3222 arranged at intervals along the axial direction of the connecting hole 321 is greater than the thickness of the convex block, when the water outlet is connected to the fitting 31, it can push the fitting 31 to move axially along the connecting hole 321 relative to the base 32 to lift the valve core 12 of the switching valve. In addition, during the movement of the fitting 31 relative to the base 32, in order to prevent the convex block from moving from the fixing part 3222 to the disassembly part 3221, a guiding part 3223 can be provided between the fixing part 3222 and the disassembly part 3221.

[0091] In other embodiments, to facilitate the axial movement of the fitting 31 relative to the base 32 along the connecting hole 321, the fixing part 3222 has a second open end 3222a and a second closed end 3222b arranged at intervals along the axial direction of the connecting hole 321. The opening direction of the first open end 3221a is opposite to that of the second open end 3222a. Axially along the connecting hole 321, the second closed end 3222b is arranged between the first open end 3221a and the first closed end 3221b to limit the axial movement distance of the positioning and fitting part 311 along the connecting hole 321 through the second closed end 3222b and the limiting part 323.

[0092] It should be noted that when the fixing part 3222 is provided with the second open end 3222a, the axial movement distance of the convex block is limited by the limiting part 323 and the second closed end 3222b. Among them, the second open end 3222a is convenient for machining to form the fixing part 3222, and it is convenient to machine the guiding surface 3223a of the guiding part 3223 by using the second open end 3222a.

[0093] The present utility model also provides a cabinet door 40 applying the above-mentioned connecting component 30. The cabinet door 40 will be described below.

[0094] See Figure 9 and Figure 10, the cabinet door 40 includes a door body 41, a liquid outlet component 20, and the above-mentioned connection assembly 30. The door body 41 has an inner side of the door, an outer side of the door, and a door hole 41a communicating the inner side of the door with the outer side of the door. The base 32 is installed on the inner side of the door, and the connection hole 321 corresponds to the door hole 41a, so that the fitting 31 is installed in the door hole 41a. The liquid outlet component 20 is arranged in the door hole 41a and connected to the fitting 31.

[0095] With such an arrangement, since the cabinet door 40 is equipped with the connection assembly 30, through the detachable connection between the fitting 31 and the base 32, the liquid outlet component 20 can be detached from the cabinet door 40 for the user to clean or replace, ensuring the hygiene of the user's water intake.

[0096] It should be noted that the cabinet door 40 further includes a liquid storage device 10 and a distribution component 42. The liquid storage device 10 is not limited to liquid storage containers such as water kettles or buckets, and the distribution component 42 is not limited to movable mechanisms such as tongue depressors or link assemblies. Among them, the liquid storage device 10 includes a liquid storage cavity 11 and a liquid outlet hole 13 communicating with the liquid storage cavity 11, and a switch valve is provided in the liquid outlet hole 13. The liquid storage device 10 is detachably connected to the base 32. The fitting 31 is provided with a flow channel, and the liquid outlet hole 13 of the liquid storage device 10 is inserted into the fitting 31 to communicate with the flow channel of the fitting 31, so that the liquid in the liquid storage device 10 can flow out to the liquid outlet component 20 through the flow channel of the fitting 31 for the user to draw water. The distribution component 42 includes a distribution housing 42a and a force-receiving part 42b. The distribution housing 42a is installed on the outer side of the door body 41, the force-receiving part 42b is rotatably connected to the distribution housing 42a, and the liquid outlet component 20 extends from the door hole 41a to the outer side of the door to be connected to the force-receiving part 42b.

[0097] The water outlet nozzle includes a liquid outlet housing 21, an elastic connecting piece 23, and a liquid outlet core 22. The liquid outlet housing 21 has a liquid outlet cavity, an inlet end and an outlet end communicating with the liquid outlet cavity. Among them, the inlet end of the liquid outlet housing 21 is connected to the outlet connection end 315 of the fitting 31, and the inlet connection end 314 of the fitting 31 is connected to the liquid outlet hole 13 of the liquid storage device 10. The outlet end of the liquid outlet channel 20a extends from the door hole 41a to the outer side of the door. The liquid outlet core 22 is slidably arranged in the liquid outlet cavity of the liquid outlet housing 21, and a liquid outlet channel 20a is formed between the outer wall of the liquid outlet core 22 and the inner wall of the liquid outlet housing 21. The elastic connecting piece 23 is connected between the liquid outlet core 22 and the liquid outlet housing 21. In addition, the liquid outlet core 22 is connected to the force-receiving part 42b of the distribution component 42 so that the liquid outlet core 22 can press against or separate from the outlet end of the liquid outlet housing 21, thereby opening or closing the liquid outlet channel 20a.

[0098] See back Figure 2, in some embodiments, to facilitate the cooperation between the cooperating member 31 and the liquid outlet member 20 to lift the valve core 12 of the switching valve, the cooperating member 31 is provided with a cavity 313, and an inlet connection end 314 and an outlet connection end 315 communicating with the cavity 313. The inlet connection end 314 is used to communicate with the liquid outlet hole 13 of the liquid storage device 10, and the outlet connection end 315 is used to connect to the water outlet nozzle. The inner wall of the cooperating member 31 is provided with a carrier 316. The carrier 316 includes a connecting portion 3161 and a plugging portion 3162. The connecting portion 3161 is connected to the inner wall of the cooperating member 31, the plugging portion 3162 is connected to the connecting portion 3161, and the plugging portion 3162 protrudes from the connecting portion 3161 toward the inlet connection end 314 to form a slot between the plugging portion 3162 and the inner wall of the cooperating member 31.

[0099] See Figure 10 , when the liquid outlet hole 13 of the liquid storage device 10 is inserted into the slot to be connected to the inlet connection end 314 of the cooperating member 31, the water intake process of the user is as follows. As an example, the force-receiving portion 42b is set as a pressing tongue, the top end of the pressing tongue is rotatably connected to the distribution housing 42a, and the bottom end of the pressing tongue is set as a free end. A torsion spring is provided between the distribution housing 42a and the pressing tongue. When the user presses the free end of the pressing tongue, the torsion spring deforms, and the pressing tongue can rotate around the top end of the pressing tongue to drive the liquid outlet member 20 to move along the axial direction of the door hole 41a, and further push the cooperating member 31 to slide relative to the base 32, so as to use the plugging portion 3162 of the cooperating member 31 to lift the valve core 12 of the switching valve to open the water outlet. At this time, the liquid in the liquid storage device 10 can flow out from the water outlet into the liquid outlet member 20 to meet the water intake requirement of the user. When the user cancels the pressing on the pressing tongue, the torsion spring restores its deformation to reset the pressing tongue from the pressing position to the idle position, and the plugging portion 3162 of the cooperating member 31 can be separated from the valve core 12 of the switching valve, so that the valve core 12 of the switching valve is reset to close the water outlet, and the user stops taking water.

[0100] The present utility model also provides a refrigerator 1 applying the above-mentioned door 40 to facilitate improving the user experience of using the refrigerator 1. The refrigerator 1 will be described below.

[0101] See Figure 11, the refrigerator 1 provided by the present utility model includes a box body 50 and the above-mentioned door 40. The box body 50 includes a refrigerating chamber 51, and a door body 41 is connected to the box body 50 to open and close the refrigerating chamber 51. Among them, the inner side of the door faces the refrigerating chamber 51, and the outer side of the door faces away from the refrigerating chamber 51. The liquid storage device 10 is arranged on the side of the door body 41 facing the refrigerating chamber 51 to cool the liquid in the liquid storage device 10 by using the refrigeration function of the refrigerator 1. The water outlet nozzle is arranged on the side of the door body 41 facing away from the refrigerating chamber 51, so that the user can press the tongue from outside the door 40 to take the ice water in the liquid storage device 10, thereby reducing the opening and closing of the door 40 and reducing the cold leakage of the refrigerator 1. Since the door 40 is provided with a connection assembly 30, through the detachable connection between the fitting 31 and the base 32, the water outlet nozzle can be detached from the door 40, so that the user can clean or replace it, ensuring the drinking water hygiene of the user and improving the user experience of the refrigerator 1.

[0102] In some embodiments, the box body 50 may further have at least one of a freezing chamber 52, a variable temperature chamber, and a fresh-keeping chamber, which is not limited in the present utility model. In addition, other structures of the refrigerator 1 are not described in detail in the present utility model.

Claims

1. A connecting component, characterized in that, Comprising: A base (32) having a connection hole (321), and at least one positioning portion (322) is provided on the inner wall of the connection hole (321); And A fitting (31), and at least one positioning and fitting portion (311) is provided on the outer wall of the fitting (31); Wherein, the positioning portion (322) includes a disassembly portion (3221) and a fixing portion (3222), and the disassembly portion (3221) and the fixing portion (3222) are connected in an axially offset manner along the connection hole (321); During the process of installing the fitting (31) onto the base (32), the fitting (31) is inserted into the connection hole (321), so that the positioning and fitting portion (311) rotates through the disassembly portion (3221) and into the fixing portion (3222) to fix the fitting (31) and the base (32); when the positioning and fitting portion (311) rotates out of the fixing portion (3222) and into the disassembly portion (3221), the fixed cooperation between the fitting (31) and the base (32) is released, and the fitting (31) and the base (32) are separable.

2. The connecting component according to claim 1, wherein One of the positioning portion (322) and the positioning and fitting portion (311) is provided as a groove, and the other of the positioning portion (322) and the positioning and fitting portion (311) is provided as a protrusion, and the disassembly portion (3221) and the fixing portion (3222) are arranged in the groove.

3. The connecting component according to claim 2, characterized in that, The protrusion has elasticity, and the protrusion generates elastic deformation in at least one of the fixing portion (3222) and the disassembly portion (3221) to limit the movement of the protrusion between the disassembly portion (3221) and the fixing portion (3222).

4. The connecting component according to claim 3, wherein The groove includes a guiding portion (3223), the guiding portion (3223) is connected between the disassembly portion (3221) and the fixing portion (3222), the protrusion generates elastic deformation when passing through the guiding portion (3223), and the protrusion restores elastic deformation when it is in the disassembly portion (3221) or the fixing portion (3222).

5. The connecting component according to claim 4, wherein The guiding portion (3223) is provided with a guiding surface (3223a), the guiding surface (3223a) extends along the circumferential direction of the connection hole (321), the protrusion is provided with a guiding and fitting surface (3111) that cooperates with the guiding surface (3223a), and the extending direction of the guiding and fitting surface (3111) is the same as that of the guiding surface (3223a).

6. The connecting component according to claim 5, characterized in that, The guiding surface (3223a) includes a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are connected along the circumferential direction of the connection hole (321) and have opposite inclination directions; the guiding and fitting surface (3111) includes a first fitting inclined surface and a second fitting inclined surface, the first fitting inclined surface cooperates with the first inclined surface, and the second fitting inclined surface is connected to the first fitting inclined surface and cooperates with the second inclined surface; Alternatively, the guiding surface (3223a) is arranged as a first arc convex surface, the first arc convex surface protrudes from the inner wall of the guiding part (3223) along the axial direction of the connecting hole (321), the guiding and mating surface (3111) is arranged as a second arc convex surface, and the second arc convex surface protrudes from the outer wall of the convex block along the axial direction of the connecting hole (321).

7. The connecting component according to claim 2, wherein, A limiting part (323) is further arranged on the inner wall of the connecting hole (321), and a limiting and mating part (312) is further arranged on the outer wall of the mating part (31). When the limiting part (323) and the limiting and mating part (312) cooperate with each other, the convex block can switch positions between the dismounting part (3221) and the fixing part (3222).

8. The connecting component according to claim 7, wherein The limiting part (323) protrudes from the inner wall of the connecting hole (321) along the radial direction of the connecting hole (321), and the limiting and mating part (312) protrudes from the outer wall of the mating part (31). Axially along the connecting hole (321), at least part of the limiting part (323) and the limiting and mating part (312) overlap, so that the limiting part (323) and the limiting and mating part (312) are pressed against each other for cooperation.

9. The connecting component according to claim 8, wherein The positioning part (322) is arranged as the groove, and the positioning and mating part (311) is arranged as the convex block. The positioning and mating part (311) is connected to the limiting and mating part (312), and the positioning and mating part (311) protrudes from the limiting and mating part (312) along the radial direction of the connecting hole (321).

10. The connecting component according to claim 9, characterized in that The dismounting part (3221) has a first opening end (3221a) and a first closed end (3221b) which are arranged at intervals along the axial direction of the connecting hole (321). Axially along the connecting hole (321), the first closed end (3221b) and the limiting part (323) are arranged at the same height.

11. The connecting component according to claim 10, wherein The fixing part (3222) has two groove walls which are arranged at intervals along the axial direction of the connecting hole (321), and the distance between the two groove walls is greater than the thickness of the convex block, so that the convex block can move axially along the connecting hole (321) within the fixing part (3222).

12. The connecting component according to claim 10, wherein The fixing part (3222) has a second opening end (3222a) and a second closed end (3222b) which are arranged at intervals along the axial direction of the connecting hole (321). The opening directions of the first opening end (3221a) and the second opening end (3222a) are opposite. Axially along the connecting hole (321), the second closed end (3222b) is arranged between the first opening end (3221a) and the first closed end (3221b) to limit the axial movement distance of the convex block along the connecting hole (321) through the second closed end (3222b) and the limiting part (323).

13. A box door, characterized in that, It includes a door body (41), a liquid outlet component (20) and the connecting component (30) according to any one of claims 1 to 12. The door body (41) has an inner side of the door, an outer side of the door, and a door hole (41a) communicating the inner side of the door with the outer side of the door. The base (32) is installed on the inner side of the door, and the connection hole (321) corresponds to the door hole (41a) so that the fitting (31) is installed in the door hole (41a); The liquid outlet component (20) is arranged in the door hole (41a) and connected to the fitting (31).

14. A refrigerator, characterized in that, It includes a box body (50) and the box door (40) described in claim 13; The box body (50) includes a refrigerating chamber (51), and the door body (41) is connected to the box body (50) to open and close the refrigerating chamber (51); Wherein, the inner side of the door faces the refrigerating chamber (51), and the outer side of the door faces away from the refrigerating chamber (51).

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