Refrigerator

Abstract

The utility model provides a kind of refrigerator, the door body structure of refrigerator includes door shell, lock piece and sealing box.Door shell is equipped with installation through-hole, the lock body of lock piece is worn in installation through-hole, and one end of lock body is equipped with connecting portion in the inside of door shell, sealing box is sealed and is attached to the inside of door shell, and with the position of installation through-hole corresponds, sealing box is equipped with containing cavity, when sealing box is set in the inside of door shell, the part of lock piece in the inside of door shell is located in containing cavity, so that sealing box plays sealing effect to lock piece, avoid when injecting heat-insulating foaming material, heat-insulating foaming material enters lock piece to influence the work of lock piece.Sealing box is further equipped with clamping portion in one end, clamping portion is cooperatively arranged with connecting portion, sealing box can be moved along the inside of door shell relative to lock body, so that clamping portion and connecting portion are buckled, realize the fixed installation between door shell, lock body and sealing box, it is convenient to install, can improve installation efficiency, and make overall structure more simple.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a freezer. Background Technology

[0002] Existing freezers with concealed locks typically include a cabinet body and a door structure. The door structure is located on the cabinet body and consists of a door shell, a door liner, a lock, and a lock box. The door liner is located inside the door shell, and a space is formed between the door liner and the door shell, filled with insulating foam material. The lock is located on the door shell and within the space, while the lock box is located within the space and is sealed to the door shell. The lock box and the door shell form a space to accommodate the lock, preventing the insulating foam material from entering the lock and affecting its operation when injected into the space between the door liner and the door shell.

[0003] The lock consists of a lock cylinder, lock hook, fixing plate, spring plate, etc. In this design, the lock components need to be fixed with a fixing plate and fixed to the door shell with spring plates. The lock box needs to be installed on the door shell with double-sided sponge. Therefore, the structure is complex and the installation efficiency is low. Utility Model Content

[0004] The purpose of this invention is to solve the problems of complex structure and low installation efficiency of existing freezer products with concealed locks.

[0005] To solve the above-mentioned technical problems, this utility model provides a refrigerator, including a cabinet body and a door structure. The door structure is used to cover the cabinet body and includes a door shell, a lock, and a sealing box. The door shell has a mounting through hole. The lock includes a lock body that passes through the mounting through hole. The lock body has a connecting part on its circumferential outer surface and is located inside the door shell. The sealing box is sealed and fitted to the inside of the door shell and corresponds to the position of the mounting through hole. The sealing box has a receiving cavity for accommodating the portion of the lock located inside the door shell. One end of the sealing box has a snap-fit ​​part that cooperates with the connecting part. The sealing box can move relative to the lock body along the inside of the door shell, so that the snap-fit ​​part engages with the connecting part.

[0006] In some embodiments of this application, the inner side of the door shell is provided with a guide groove, and the mounting through hole communicates with the guide groove; the sealing box is accommodated in the guide groove and can slide along the guide groove.

[0007] In some embodiments of this application, the door shell includes a door body, a first folded edge, and a second folded edge. One side of the first folded edge is connected to the door body, and the second folded edge is connected to the side of the first folded edge away from the door body. The second folded edge is disposed opposite to the door body. The door body, the first folded edge, and the second folded edge together form the guide groove, and the mounting through hole is disposed on the first folded edge.

[0008] In some embodiments of this application, the sealing box is provided with a first opening and a second opening, both of which communicate with the receiving cavity; the first opening is located on the side of the sealing box that fits against the door shell, and the second opening is located on the bottom surface of the sealing box; the freezer also includes a sealing gasket, which is located between the sealing box and the door shell, and at the edges of the first opening and the second opening, and is used to seal the first opening and the second opening.

[0009] In some embodiments of this application, the sealing box is provided with limiting ribs at the edges of the first opening and the second opening, and the sealing gasket is sleeved on the outside of the limiting ribs; the height of the limiting ribs is less than the thickness of the sealing gasket.

[0010] In some embodiments of this application, the top surface of the sealing box is provided with an outwardly convex arc surface; the sealing gasket includes an upper sealing part located above the first opening, the upper sealing part being disposed at the arc surface and fitting against the door shell under the abutment of the arc surface.

[0011] In some embodiments of this application, the limiting rib includes an upper limiting rib located at the upper edge of the first opening; the top surface of the sealing box is provided with a top limiting rib, the top limiting rib and the upper limiting rib are spaced apart, and the arc surface is located between the top limiting rib and the upper limiting rib; the upper side surface of the upper sealing part abuts against the top limiting rib, and the lower side surface of the upper sealing part abuts against the upper limiting rib.

[0012] In some embodiments of this application, the sealing box is provided with a limiting block, the limiting block protruding from the side of the locking portion facing the lock body, the limiting block being used to restrict the sealing box from moving relative to the lock body in the direction in which the locking portion separates from the connecting portion.

[0013] In some embodiments of this application, the sealing box includes a first end and a second end, and the snap-fit ​​portion is disposed on the first end of the sealing box; the limiting block is disposed on the side of the snap-fit ​​portion near the second end of the sealing box; the limiting block has a guide surface on the side near the second end of the sealing box, and the guide surface is inclined from the side near the second end of the sealing box towards the side near the first end of the sealing box, so that the lock body can enter between the two snap-fit ​​portions under the guidance of the guide surface.

[0014] In some embodiments of this application, there is a distance between the latching part and the door shell, allowing the latching part to elastically deform toward the side closer to the door shell.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: The refrigerator door structure of this application includes a door shell, a lock, and a sealing box. The door shell has a mounting through hole, through which the lock body passes. The lock body has a connecting portion at one end on the inner side of the door shell. The sealing box is fitted snugly to the inner side of the door shell, corresponding to the position of the mounting through hole. The sealing box has a receiving cavity. When the sealing box is positioned inside the door shell, the portion of the lock body located inside the door shell is within the receiving cavity, allowing the sealing box to seal the lock and preventing the insulation foam from entering the lock and affecting its operation. One end of the sealing box also has a snap-fit ​​portion, which cooperates with the connecting portion. The sealing box can move relative to the lock body along the inner side of the door shell, causing the snap-fit ​​portion to engage with the connecting portion, achieving a fixed installation between the door shell, lock body, and sealing box. This method is convenient and efficient, and eliminates the need for fixing plates and spring plates, simplifying the overall structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a freezer in one embodiment.

[0017] Figure 2 This is a three-dimensional structural diagram of a freezer in one embodiment.

[0018] Figure 3 This is a schematic diagram of the main structure of a freezer in one embodiment.

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point AA.

[0020] Figure 5 yes Figure 4 A magnified view of the structure at point B.

[0021] Figure 6 This is a schematic diagram of the connection structure between the door shell, lock, and sealing box from one perspective.

[0022] Figure 7 This is a schematic diagram of the exploded structure between the door shell, lock, and sealing box from one perspective.

[0023] Figure 8 This is a schematic diagram of the exploded structure between the door shell, lock, and sealing box from another perspective.

[0024] Figure 9 This is a schematic diagram of the structure of the lock in one embodiment.

[0025] Figure 10 This is a schematic diagram of the structure of the sealing box in one embodiment.

[0026] Figure 11 yes Figure 10 A magnified structural diagram at point C.

[0027] Figure 12 This is a front view schematic diagram of the connection structure between the door shell, lock, and sealing box.

[0028] Figure 13 yes Figure 12 A cross-sectional structural diagram.

[0029] Figure 14 This is a schematic diagram of the connection structure between the door shell, lock, and sealing box from another perspective.

[0030] Figure 15 This is a schematic diagram of the structure after the lock and the sealing box are connected together in one embodiment.

[0031] Figure 16 This is a schematic diagram of the main structure after the lock and the sealing box are connected together in one embodiment.

[0032] Figure 17 yes Figure 16 A magnified structural diagram at point D.

[0033] The annotations in the attached figures are explained as follows: 100-Door structure; 1-Door shell; 11-Door body; 12-First folded edge; 121-Mounting through hole; 122-Lock positioning part; 13-Second folded edge; 131-Lock hook clearance hole; 14-Guide groove; 2-Door inner liner; 3-Lock; 31-Lock body; 311-Limiting protrusion; 312-Connecting part; 313-Limiting part; 32-Lock hook; 4-Sealing box; 41-Accommodating cavity; 42-First opening; 43-Snap-fit ​​part; 44-Limiting block; 441-Guide surface; 442-Reinforcing rib; 45-Abutting part; 46-Second opening; 47-Limiting rib; 471-Upper limiting rib; 48-Top limiting rib; 49-Arc surface; 5-Sealing gasket; 51-Upper sealing part; 6-Door seal; 200-Cabinet body. Detailed Implementation

[0034] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0035] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] See Figure 1 A freezer includes a door structure 100 and a cabinet body 200. The cabinet body 200 has an opening on one side, and the door structure 100 is positioned at the opening. The door structure 100 includes a locking element 3, allowing it to be locked onto the cabinet body 200. Specifically, the cabinet body 200 is a hollow cuboid shape with an opening on its top surface. A locking portion for engaging with the locking element 3 is provided along the edge of the opening. The door structure 100 is adapted to fit the opening of the cabinet body 200. After the door structure 100 is installed at the opening of the cabinet body 200, it seals the opening, creating a sealed cavity inside the freezer.

[0038] See Figures 2 to 5The door structure 100 includes a door outer shell 1, a door inner liner 2, a lock 3, a sealing box 4, and a sealing gasket 5. The door inner liner 2 is located inside the door outer shell 1, forming a sandwich between the inner liner 2 and the door outer shell 1, and thermal insulation foam material is injected into this sandwich. The thermal insulation foam material provides heat insulation, thus giving the door structure 100 a thermal insulation function. The sealing box 4 is located inside the door outer shell 1, specifically within the sandwich between the door outer shell 1 and the door inner liner 2. The sealing box 4 and the door outer shell 1 form a space for installing the lock 3. The lock 3 is installed in this space. The sealing gasket 5 is located between the sealing box 4 and the door outer shell 1 to achieve a sealed connection between the sealing box 4 and the door outer shell 1, preventing the foam material from entering the space enclosed by the sealing box 4 and the door outer shell 1.

[0039] See Figures 5 to 8 In one embodiment, the door shell 1 includes a door body 11, a first flange 12, and a second flange 13. The door body 11 has an approximately rectangular structure and is adapted to fit the opening of the cabinet 200. The first flange 12 and the second flange 13 are disposed at the edges of the door body 11. One side of the first flange 12 is connected to the door body 11, and the second flange 13 is connected to the side of the first flange 12 away from the door body 11, and the second flange 13 is disposed opposite to the door body 11. The door body 11, the first flange 12, and the second flange 13 together form a guide groove 14. The door inner liner 2 is connected to the second flange 13.

[0040] In one embodiment, a first fold 12 and a second fold 13 are formed by two bends at the edge of the door body 11. The door body 11, the first fold 12, and the second fold 13 form a cross-section that is approximately "U" shaped. The structure formed by the door body 11, the first fold 12, and the second fold 13 forms a guide groove 14. The first fold 12 and the second fold 13 provide installation space for the lock 3 and the sealing box 4, and also increase the load-bearing strength of the door body 11.

[0041] exist Figure 7 In the illustrated embodiment, the edges at both ends of the door body 11 along its length are bent to form a first flange 12 and a second flange 13, and the two ends of the door inner liner 2 along its length are connected to the second flange 13. End caps are provided at both ends of the door body 11 along its width, connecting the door outer shell 1 and the door inner liner 2, so that the end caps, door outer shell 1, and door inner liner 2 together form a hollow cuboid structure, and a sandwich layer is formed in the hollow space. It should be noted that, alternatively, the edges of the door body 11 can be bent to form the first flange 12 and the second flange 13, and all four sides of the door inner liner 2 can be connected to the second flange 13, so that the door outer shell 1 and door inner liner 2 together form a hollow cuboid structure, and a sandwich layer is formed in the hollow space. Thermal insulation foam material is injected into this sandwich layer.

[0042] The first folded edge 12 is provided with a mounting through hole 121, which connects to the guide groove 14 and is used to install the lock 3.

[0043] The door outer shell 1 has a lock positioning part 122 at the mounting through hole 121. The lock positioning part 122 is used to cooperate with the lock 3 to limit the lock 3 and prevent the lock 3 from rotating relative to the mounting through hole 121. Figure 7 In the structure shown, the lock positioning part 122 is a plane provided on the side wall of the mounting through hole 121, making the mounting through hole 121 a non-circular structure. It should be noted that the lock positioning part 122 can also be other structures that serve the same function.

[0044] A hook clearance hole 131 is provided on the second folded edge 13, and the hook clearance hole 131 is located close to the mounting through hole 121. The hook clearance hole 131 is used for the hook 32 of the lock 3 to pass through and extend out of the outer side of the door shell 1.

[0045] See Figures 7 to 9 The lock 3 includes a lock body 31, a lock cylinder, and a lock hook 32. One end of the lock body 31 has a limiting protrusion 311 on its axial outer surface, and the other end has a connecting portion 312. The lock body 31 passes through a mounting hole 121 on the door shell 1, and the limiting protrusion 311 is located on the outer side of the door shell 1, specifically on the outer side of the first flange 12, and abuts against the outer side of the door shell 1 to limit the length of the lock body 31 inserted into the door shell 1. After the lock body 31 is inserted into the mounting hole 121 of the door shell 1, the connecting portion 312 is located on the inner side of the door shell 1.

[0046] In one embodiment, the connecting portion 312 is a slot structure. The connecting portion 312 is disposed on the upper and lower sides of the outer circumferential surface of the lock body 31. When the lock body 31 passes through the mounting through hole 121 of the door shell 1, the connecting portion 312 faces the two sides of the guide groove 14 in the width direction, that is, the connecting portion 312 is located on the two sides of the lock body 31 facing the door body 11 and the second folded edge 13 respectively. The slot structure has openings on both sides of the lock body 31 along the length direction of the guide groove 14, so that the engaging portion 43 on the sealing box 4 can enter the interior of the slot structure from the openings to realize the engaging of the connecting portion 312 and the engaging portion 43. It should be noted that the connecting portion 312 can also be an annular groove structure disposed on the entire outer circumferential surface of the lock body 31.

[0047] A limiting part 313 is provided on one side of the lock body 31 in a circumferential direction. The limiting part 313 is configured to cooperate with the lock positioning part 122 to restrict the rotation of the lock body 31 relative to the door shell 1. The limiting part 313 is disposed between the limiting protrusion 311 and the connecting part 312. Figure 9In the illustrated embodiment, the limiting part 313 has a planar structure, so that the cross-section of the lock body 31 at the limiting part 313 is non-circular. When the lock body 31 passes through the mounting through hole 121 on the door shell 1, the circumferential surface of the lock body 31 fits against the side wall of the mounting through hole 121, and the limiting part 313 fits against the lock positioning part 122, thereby fixing the position of the lock body 31 in the circumferential direction, that is, preventing the lock body 31 from rotating relative to the door shell 1.

[0048] The lock body 31 has a through hole along its axial direction, which extends through both ends of the lock body 31 and is used to install the lock cylinder. The lock cylinder is disposed in the through hole on the lock body 31 and can rotate relative to the axis of the lock body 31.

[0049] The lock hook 32 is connected to the lock cylinder and located inside the door shell 1. Specifically, the lock hook 32 is hook-shaped, with one end fixed to the lock cylinder and the other end extending radially along the lock body 31. When the lock cylinder rotates relative to the lock body 31, the lock hook 32 rotates with the lock cylinder. The end of the lock hook 32 away from the lock body 31 swings relative to the lock body 31, causing the lock hook 32 to swing between the locked and unlocked positions. When the lock hook 32 is in the locked position, it extends from the lock hook clearance hole 131 and engages with the locking part on the cabinet 200, thereby locking the door structure 100 onto the cabinet 200. When the lock hook 32 is in the unlocked position, it disengages from the locking part on the cabinet 200, allowing the door structure 100 to be opened relative to the cabinet 200.

[0050] See Figure 7 , Figure 8 as well as Figure 10 The sealing box 4 has a box-like structure, meaning that the interior of the sealing box 4 has a receiving cavity 41, and one side of the sealing box 4 has a first opening 42 communicating with the receiving cavity 41. After the sealing box 4 is installed inside the door shell 1, the side of the sealing box 4 with the first opening 42 faces the second folded edge 13. The lock 3 passes through the first opening 42 and is received in the receiving cavity 41, and the receiving cavity 41 provides room for the lock hook 32 to swing between the locked and unlocked positions.

[0051] The sealing box 4 is located inside the door shell 1, that is, within the interlayer. Specifically, the sealing box 4 is positioned within the guide groove 14 and corresponds to the position of the lock 3. The length direction of the sealing box 4 is consistent with the length direction of the guide groove 14. The sealing box 4 and the guide groove 14 are configured to limit the sealing box 4 in the vertical direction.

[0052] exist Figures 12 to 14In the embodiment shown, the top surface of the sealing box 4 is sealed to the door body 11, the side of the sealing box 4 with the first opening 42 is sealed to the first folded edge 12, and the bottom surface of the sealing box 4 is sealed to the second folded edge 13, so that when the thermal insulation foam material is injected into the interlayer, the thermal insulation foam material will not leak from the sealing box 4.

[0053] The sealing box 4 includes a first end and a second end, which are the two ends along the length of the sealing box 4, respectively. A snap-fit ​​portion 43 is provided on the first end of the sealing box 4, specifically disposed on the upper and lower side walls of the receiving cavity 41. The snap-fit ​​portion 43 cooperates with the connecting portion 312. When the sealing box 4 is installed inside the door body 11, the snap-fit ​​portion 43 engages with the connecting portion 312, thereby fixing the sealing box 4 to the lock body 31 and clamping it onto the door outer shell 1, ensuring a sealed fit between the sealing box 4 and the door outer shell 1. Figure 10 In the embodiment shown, the latching part 43 is a snap-fit ​​structure. The latching part 43 protrudes from the upper and lower side walls inside the receiving cavity 41. The distance between the two latching parts 43 is less than the outer diameter of the lock body 31, so that the latching part 43 can be latched into the connecting part 312.

[0054] See Figure 15 and Figure 16 The end of the locking hook 32 away from the lock body 31 can move at the second end of the receiving cavity 41 corresponding to the sealing box 4, thereby making full use of the structure of the receiving cavity 41 at the second end of the sealing box 4 and reducing the volume of the sealing box 4. The size of the receiving cavity 41 at the second end of the sealing box 4 is larger than the size of the lock body 31, so that the lock body 31 can be inserted into the receiving cavity 41.

[0055] See Figure 10 and Figure 11 as well as Figure 16 and Figure 17 The latching part 43 has a limiting block 44 at one end near the second end of the sealing box 4. The limiting block 44 protrudes from the side of the latching part 43 facing the lock body 31, that is, the limiting block 44 is located on the side where the two latching parts 43 are close to each other. The limiting block 44 is used to restrict the movement of the lock body 31 relative to the sealing box 4 towards the second end of the sealing box 4, and to prevent the latching part 43 from separating from the connecting part 312. In one embodiment, when the lock body 31 is connected to the sealing box 4, the two latching parts 43 abut against the upper and lower sides of the lock body 31 (that is, the two sides of the sealing box 4 in the width direction), and the side wall of the receiving cavity 41 away from the second end of the sealing box 4 and the limiting block 44 abut against the two sides of the lock body 31 along the length direction of the sealing box 4, thereby fixing the relative position between the sealing box 4 and the lock body 31 and improving the positional accuracy of the sealing box 4 relative to the lock body 31.

[0056] exist Figure 16In the embodiment shown, the receiving cavity 41 is provided with an abutment portion 45 on the side wall away from the second end of the sealing box 4, and the abutment portion 45 abuts against the side of the lock body 31 away from the limiting block 44.

[0057] See Figure 17 The limiting block 44 has a guide surface 441 on the side near the second end of the sealing box 4. The guide surface 441 is inclined from the side near the second end of the sealing box 4 towards the side near the first end of the sealing box 4, so that the lock body 31 can enter between the two latching parts 43 under the guidance of the guide surface 441, which facilitates the engagement between the latching part 43 and the connecting part 312. The guide surface 441 can be the chamfered surface of the limiting block 44 on the side near the second end of the sealing box 4.

[0058] See Figure 13 In one embodiment, a distance d is provided between the latching part 43 and the first folded edge of the door shell 1, allowing the latching part 43 to elastically deform towards the side closer to the door shell 1, thereby enabling it to match door shells 1 of different thicknesses. Specifically, when the thickness of the door shell 1 increases and the lock body 31 passes through the mounting through hole 121 on the door shell 1, the distance between the connecting part 312 on the lock body 31 and the inner wall of the door shell 1 decreases, which is equivalent to the connecting part 312 shifting a certain distance towards the side closer to the door shell 1. This application provides a distance d between the latching part 43 and the door shell 1, allowing the latching part 43 to elastically deform towards the side closer to the door shell 1, so that the latching part 43 can still engage with the connecting part 312 even when the thickness of the door shell 1 increases. Moreover, by deforming the latching part 43 towards the first folded edge of the door shell 1, the sealing box 4 can be smoothly moved to the position where the latching part 43 and the connecting part 312 are engaged, reducing the difficulty of installation.

[0059] In one embodiment, the sealing box 4 is a plastic structure, integrally molded. That is, the latching part 43 is also a plastic structure, thus possessing a certain degree of elastic deformation capability, allowing it to adapt to door shells 1 of different thicknesses. It should be noted that the latching part 43 can also be other structures that serve the same function.

[0060] See Figure 10 and Figure 11 In one embodiment, a reinforcing rib 442 is provided on the side of the latching portion 43 near the door housing 1. The reinforcing rib 442 protrudes from the surface of the latching portion 43 facing the door housing 1 to increase the strength of the latching portion 43 under stress. One or more reinforcing ribs 442 may be provided. When multiple reinforcing ribs 442 are provided, they may be arranged in parallel or intersecting.

[0061] The bottom surface of the sealing box 4 has a second opening 46 that communicates with the receiving cavity 41. The position of the second opening 46 corresponds to the position of the lock hook clearance hole 131. When the lock hook 32 is in the locked position, the lock hook 32 extends from the second opening 46 and the lock hook clearance hole 131 to the outside of the sealing box 4, so that it can be engaged with the locking part on the cabinet 200. When the lock hook 32 is in the unlocked position, the lock hook 32 is accommodated inside the receiving cavity 41, preventing the lock hook 32 from affecting the opening or closing of the door structure 100 relative to the cabinet 200.

[0062] In one embodiment, the second opening 46 is connected to the first opening 42, that is, the sealing box 4 does not have a solid structure between the second opening 46 and the first opening 42, so that when the sealing box 4 is placed inside the door shell 1 and corresponds to the position of the lock 3, the sealing box 4 will not mechanically interfere with the lock hook 32, so as to ensure that the lock hook 32 can smoothly enter the receiving cavity 41, and also make the installation of the sealing box 4 more convenient.

[0063] The sealing box 4 can slide along the length of the guide groove 14, meaning it can move relative to the lock body 31 along its length. This allows the lock body 31 to enter the sealing box 4 from its second end to its first end, achieving the engagement between the locking part 43 and the connecting part 312. By moving the sealing box 4 along the length of the guide groove 14, it moves relative to the lock body 31, allowing the lock body 31 to enter between the two locking parts 43 from its second end. This reduces the deformation of the locking part 43 required for engagement, thus lowering the difficulty of engaging the locking part 43 and the connecting part 312. Furthermore, the engagement depth between the locking part 43 and the connecting part 312 can be designed to be larger, increasing the firmness of the engagement without increasing the difficulty of engaging the locking part 43 and the connecting part 312. In this embodiment, since the guide groove 14 guides the movement of the sealing box 4, when the operating snap-fit ​​part 43 and the connecting part 312 are engaged, pushing the sealing box 4 to slide relative to the guide groove 14 can achieve the engagement between the snap-fit ​​part 43 and the connecting part 312, which can also reduce the installation difficulty.

[0064] The sealing box 4 has limiting ribs 47 at the edges of the first opening 42 and the second opening 46, with the limiting ribs 47 protruding from the surface of the sealing box 4. The limiting ribs 47 restrict the position of the sealing gasket 5 installed between the sealing box 4 and the door shell 1, preventing the sealing gasket 5 from separating from the sealing box 4 when the sealing box 4 moves relative to the door shell 1. The limiting ribs 47 also improve the load-bearing strength of the sealing box 4. In one embodiment, the outer surface of the limiting rib 47 contacts the sealing gasket 5, so that when the sealing box 4 moves relative to the door shell 1, the limiting rib 47 abuts against the side wall of the sealing gasket 5, thereby preventing relative movement between the sealing gasket 5 and the sealing box 4 that could cause the sealing gasket 5 to separate from the sealing box 4 and affect the sealing effect.

[0065] In one embodiment, the sealing gasket 5 is also fixedly connected to the sealing box 4, thereby reducing the possibility of the sealing gasket 5 separating from the sealing box 4 when the sealing box 4 moves relative to the door shell 1. For example, the sealing gasket 5 is glued to the sealing box 4 to achieve fixation between the sealing gasket 5 and the sealing box 4. The sealing gasket 5 can be a sponge, rubber gasket, or silicone gasket, etc.

[0066] The height of the limiting rib 47 is less than the thickness of the sealing gasket 5, allowing the sealing gasket 5 to be compressed between the sealing box 4 and the door shell 1, thus improving the sealing effect. Furthermore, the height of the limiting rib 47 ensures the amount of compression deformation at various points on the sealing gasket 5. For example, if the thickness of the sealing gasket 5 is 5mm and the height of the limiting rib 47 is 2mm, after the sealing box 4 is installed on the door shell 1, the limiting rib 47 of the sealing box 4 fits against the door shell 1, thereby limiting the compression deformation of the sealing gasket 5 to 3mm. It should be noted that after the sealing box 4 is installed on the door shell 1, the limiting rib 47 of the sealing box 4 may not need to fit against the door shell 1; instead, the sealing box 4 and the door shell 1 will be sealed together by the sealing gasket 5.

[0067] exist Figure 7 and Figure 15 In the illustrated embodiment, the sealing gasket 5 is annular and fits around the outer side of the limiting rib 47, thereby positioning the sealing gasket 5 between the sealing box 4 and the door shell 1, and located at the edges of the first opening 42 and the second opening 46 to achieve a sealed connection between the sealing box 4 and the door shell 1. The sealing gasket 5 abuts against the outer wall of the limiting rib 47, thereby preventing the sealing gasket 5 from moving relative to the sealing box 4.

[0068] See Figure 13 In one embodiment, the limiting rib 47 includes an upper limiting rib 471, which is located at the upper edge of the first opening 42. Specifically, the upper limiting rib 471 is defined as the limiting rib located at the upper edge of the first opening 42. A top limiting rib 48 is provided on the top surface of the sealing box 4, and the top limiting rib 48 is spaced apart from the upper limiting rib 471. When the sealing box 4 presses the sealing gasket 5 onto the door shell 1, the sealing gasket 5 undergoes elastic deformation. Under the constraint of the upper limiting rib 471, the top limiting rib 48, and the surface of the sealing box 4 between the upper limiting rib 471 and the top limiting rib 48, the sealing gasket 5 deforms towards the corner between the door body 11 and the first folded edge 12, thereby causing the sealing gasket 5 to fit against the corner between the door body 11 and the first folded edge 12. That is, at the corner between the door body 11 and the first folded edge 12, the door shell 1, the sealing gasket 5 and the sealing box 4 support each other, so as to avoid the formation of a cavity at the corner between the door body 11 and the first folded edge 12, which would reduce the stress strength of the door shell 1 at that point, and also improve the sealing effect between the sealing box 4 and the door shell 1.

[0069] Furthermore, the sealing box 4 has an outwardly protruding arc surface 49 between the top limiting rib 48 and the upper limiting rib 471. The arc surface 49, the upper limiting rib 471, and the top limiting rib 48 form an accommodating space. The sealing gasket 5 includes an upper sealing portion 51 located above the first opening 42. The upper sealing portion 51 is located between the top limiting rib 48 and the upper limiting rib 471, that is, the portion of the sealing gasket 5 located within this accommodating space is defined as the upper sealing portion 51. When the sealing box 4 is assembled onto the door shell 1, the upper sealing portion 51 deforms towards the corner between the door body 11 and the first folded edge 12 under the pressure of the arc surface 49 of the sealing box 4. This improves the fit between the sealing gasket 5 and the door body 11 and the first folded edge 12, prevents the formation of a cavity at the corner between the door body 11 and the first folded edge 12, which would reduce the stress on the door shell 1 at that location, and also improves the sealing effect between the sealing box 4 and the door shell 1.

[0070] At the corner between the door body 11 and the first folded edge 12, when there is a gap between the sealing gasket 5 and the door body 11 and the first folded edge 12, the top surface of the sealing box 4 and the side with the first opening 42 are in contact with the door shell 1, making it difficult for the thermal insulation foam material to enter the gap from the top surface of the sealing box 4 when it is injected. Moreover, when the thermal insulation foam material enters the gap from both sides along the length of the sealing box 4, the small volume of the gap makes it difficult for the thermal insulation foam material to completely fill the gap, resulting in a lower stress strength of the door shell 1 at the corner between the door body 11 and the first folded edge 12. This application provides a top limiting rib 48 on the top surface of the sealing box 4, with the top limiting rib 48 and the upper limiting rib 471 spaced apart. The sealing box 4 has an outwardly protruding arc surface 49 between the top limiting rib 48 and the upper limiting rib 471. The arc surface 49, the upper limiting rib 471 and the top limiting rib 48 form an accommodating space to limit the elastic deformation direction of the sealing gasket 5 located in the accommodating space, thereby improving the fit between the sealing gasket 5 and the door body 11 and the first folded edge 12, and preventing the formation of a cavity at the corner between the door body 11 and the first folded edge 12, which would reduce the stress strength of the door shell 1 at that location.

[0071] See Figure 2 In one embodiment, the door structure 100 further includes a door seal 6, which is disposed on the inner door liner 2 and located on the side opposite to the door body 11. When the door structure 100 is installed on the cabinet 200, the door seal 6 fits snugly against the cabinet 200, improving the sealing effect between the door structure 100 and the cabinet 200.

[0072] See Entity 7 and Figure 8The assembly method of the door structure 100 specifically includes: first, inserting the lock body 31, equipped with the lock cylinder, through the mounting through hole 121 of the door shell 1 from the outside, so that the limiting protrusion 311 on the lock body 31 fits against the door shell 1. Then, fix the lock hook 32 to the lock cylinder, and the lock hook 32 is located on the inside of the door shell 1. Next, install the sealing gasket 5 on the sealing box 4, and install the sealing box 4 with the sealing gasket 5 connected to it at the guide groove 14 on the door shell 1, so that the lock body 31 is located in the receiving cavity 41 of the sealing box 4, and is located near the second end of the sealing box 4. At this time, the space between the two latching parts 43 is on the same horizontal line as the lock body 31. Then, move the sealing box 4 along the length direction of the guide groove 14 so that the lock body 31 enters the space between the two latching parts 43, that is, the lock body 31 enters the first end of the sealing box 4 from the second end of the sealing box 4, and realizes the latching between the connecting part 312 and the latching part 43. At this point, the lock body 31 abuts against the abutment part 45 and the limiting block 44 on both sides along the length of the sealing box 4, respectively, so that the sealing box 4 is fixed on the lock body 31, realizing the fixed installation between the door shell 1, the lock body 31 and the sealing box 4, which is convenient to install and has a simple structure. Finally, the door inner liner 2 is installed on the door shell 1, the thermal insulation foam material is filled and the door seal 6 is installed.

[0073] Before installing the sealing box 4, the lock hook 32 can be rotated to extend out of the lock hook clearance hole 131, thereby reducing the size of the lock hook 32 along the length of the guide groove 14. Then, the sealing box 4 is placed on the door shell 1 at the position corresponding to the guide groove 14 and the lock 3. During the process of placing the sealing box 4 on the door shell 1, the lock hook 32 enters from the first opening 42 and reaches the second opening 46. After the lock body 31 enters from the second end of the sealing box 4 from the first end of the sealing box 4 and completes the engagement of the locking part 43 with the connecting part 312, the lock cylinder is rotated so that the end of the lock hook 32 away from the lock body 31 is located in the receiving cavity 41. In this way, the volume requirement of the receiving cavity 41 can be reduced, thereby reducing the length of the sealing box 4.

[0074] The door structure 100 of this application includes a door shell 1, a lock 3, and a sealing box 4. The door shell 1 has a mounting through hole 121, and the lock body 31 of the lock 3 passes through the mounting through hole 121. One end of the lock body 31 on the inner side of the door shell 1 has a connecting part 312. The sealing box 4 is sealed and fitted to the inner side of the door shell 1 and corresponds to the position of the lock 3. The sealing box 4 has a receiving cavity 41 for accommodating the lock 3, and the portion of the lock body 31 located on the inner side of the door shell 1 is located inside the receiving cavity 41. The sealing box 4 also has a snap-fit ​​part 43, which snaps into the connecting part 312 to achieve fixed installation between the door shell 1, the lock body 31, and the sealing box 4. The installation is convenient and does not require the setting of a fixing plate and spring sheet, making the overall structure simpler. The sealing box 4 includes a first end and a second end along its length. The snap-fit ​​part 43 is disposed at the first end of the sealing box 4. The sealing box 4 can move relative to the lock body 31 along the door shell 1, so that the lock body 31 enters from the second end into the first end, so that the snap-fit ​​part 43 and the connecting part 312 can be engaged, and the sealing box 4 can be sealed and adhered to the door shell 1, thereby making the installation more convenient and improving the installation efficiency.

[0075] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A freezer, characterized in that, include: Cabinet; A door structure for covering the cabinet, the door structure comprising: A door casing, wherein the door casing is provided with mounting through holes; A lock assembly includes a lock body that passes through the mounting through hole, and a connecting portion is provided on the outer circumferential surface of the lock body and is located inside the door housing. A sealing box is fitted to the inner side of the door shell and corresponds to the position of the mounting through hole; the sealing box has a receiving cavity for accommodating the portion of the lock located inside the door shell; a snap-fit ​​part is provided on one end of the sealing box, which cooperates with the connecting part; the sealing box can move relative to the lock body along the inner side of the door shell, so that the snap-fit ​​part and the connecting part are engaged.

2. The freezer according to claim 1, characterized in that, The inner side of the door shell is provided with a guide groove, and the mounting through hole communicates with the guide groove; The sealing box is housed within the guide groove and can slide along the guide groove.

3. The freezer according to claim 2, characterized in that, The door shell includes a door body, a first folded edge, and a second folded edge. One side of the first folded edge is connected to the door body, and the second folded edge is connected to the side of the first folded edge away from the door body. The second folded edge is disposed opposite to the door body. The door body, the first folded edge, and the second folded edge together form the guide groove, and the mounting through hole is disposed on the first folded edge.

4. The freezer according to claim 1, characterized in that, The sealing box is provided with a first opening and a second opening, both of which communicate with the receiving cavity; the first opening is located on the side of the sealing box that fits against the door shell, and the second opening is located on the bottom surface of the sealing box; The freezer also includes a sealing gasket, which is disposed between the sealing box and the door shell and located at the edges of the first opening and the second opening. The sealing gasket is used to seal the first opening and the second opening.

5. The freezer according to claim 4, characterized in that, The sealing box has limiting ribs at the edges of the first opening and the second opening, and the sealing gasket is sleeved on the outside of the limiting ribs. The height of the limiting rib is less than the thickness of the sealing gasket.

6. The freezer according to claim 5, characterized in that, The top surface of the sealed box is provided with an outwardly convex arc surface; The sealing gasket includes an upper sealing portion located above the first opening. The upper sealing portion is disposed at the arc surface and fits against the door shell under the pressure of the arc surface.

7. The freezer according to claim 6, characterized in that, The limiting rib includes an upper limiting rib, which is located at the upper edge of the first opening; The top surface of the sealing box is provided with a top limiting rib, the top limiting rib and the upper limiting rib are spaced apart, and the arc surface is located between the top limiting rib and the upper limiting rib; The upper side of the upper sealing part abuts against the top limiting rib, and the lower side of the upper sealing part abuts against the upper limiting rib.

8. The freezer according to claim 1, characterized in that, The sealing box is provided with a limiting block, which protrudes from the locking part and faces the lock body on one side. The limiting block is used to restrict the sealing box from moving relative to the lock body in the direction where the locking part and the connecting part are separated.

9. The freezer according to claim 8, characterized in that, The sealing box includes a first end and a second end, and the snap-fit ​​part is disposed on the first end of the sealing box; The limiting block is disposed on the side of the locking part near the second end of the sealing box; the limiting block has a guide surface on the side near the second end of the sealing box, and the guide surface is inclined from the side near the second end of the sealing box to the side near the first end of the sealing box, so that the lock body can enter between the two locking parts under the guidance of the guide surface.

10. The freezer according to claim 1, characterized in that, There is a distance between the latching part and the door shell, so that the latching part can elastically deform towards the side closer to the door shell.

Images