Refrigerator door body and refrigerator
By using a rotating freezer door structure and a damping hinge assembly, the problem of cold air loss caused by multiple steps in the freezer glass door is solved, achieving efficient cooling performance and a flexible user experience.
Patent Information
- Application Number
- CN202423104714.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing glass door structure of freezers results in many steps at the frame opening, leading to significant cold loss and reduced refrigeration performance.
The refrigerator adopts a rotating door structure, with the glass door connected to the hinge bushing assembly via a rotating trim strip. The rotation damping force is adjusted by the damping shaft assembly, enabling the glass door to rotate flexibly and stop, reducing steps and improving sealing.
It reduces cold loss at the refrigerator frame opening, improves refrigeration performance, and features a simple rotating door structure that is easy to operate and low in cost.
Smart Images

Figure CN223512359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of freezer technology, specifically to a freezer door and a freezer. Background Technology
[0002] To enhance display effects and reduce energy consumption, horizontal freezers or display cases often use glass doors. Most existing freezers adopt a sliding glass door structure, where the two glass doors slide on upper and lower steps respectively to achieve sealing and opening / closing effects. For example, a horizontal freezer disclosed in patent publication number CN221055322U specifically discloses that the upper door slides on the upper step and the lower door slides on the lower step. Both the upper and lower steps include two opposing first steps and two opposing second steps. Because the sliding freezer door results in more steps at the freezer frame opening, the foam layer at the freezer frame opening is further reduced, leading to significant cold loss at the freezer frame opening and reduced refrigeration performance. Utility Model Content
[0003] The technical problem this utility model aims to solve is to overcome the existing defects and provide a freezer door and a freezer. The freezer door has a rotating structure, reducing the steps at the freezer frame opening, ensuring sufficient foam layer usage at the frame opening, reducing cold loss at the frame opening, and improving the freezer's cooling performance. The force and speed of the rotation opening of glass doors one and two can be adjusted and controlled, and glass doors one and two can be suspended to any position within the rotation opening angle range without manual support, making it flexible and convenient to use. Assembly is convenient, and the product cost is low, effectively solving the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator door body, including a rotating decorative strip one and a rotating decorative strip two arranged opposite to each other, both of the outer surfaces of the rotating decorative strip one and the rotating decorative strip two having slots, and a glass door one being engaged in the slot of the rotating decorative strip one, and a glass door two being engaged in the slot of the rotating decorative strip two; both ends of the inner surface of the rotating decorative strip one are provided with hinge bushing one, and the inner surface of the rotating decorative strip two is provided with hinge bushing three at the axial inner end of the corresponding hinge bushing one, and the rotating decorative strip one and the rotating decorative strip two are rotatably connected by a damping rotating shaft assembly provided between the hinge bushing one and the hinge bushing three.
[0005] Furthermore, the damping shaft assembly includes an adjusting bolt, a bolt limiting sleeve, a limiting guide sleeve, and a locking nut. The inner hole of the first hinge sleeve is a round hole, and the inner hole of the third hinge sleeve is a hexagonal hole. The adjusting bolt is inserted into the bolt limiting sleeve, the inner hole of which is a countersunk hole structure. The outer end of the bolt limiting sleeve has a shoulder that fits against the end face of the first hinge sleeve. The bolt limiting sleeve is inserted into the first hinge sleeve, and the end of the adjusting bolt extends into the third hinge sleeve. The locking nut is a hexagonal nut structure, nested in the third hinge sleeve and threaded to the end of the adjusting bolt. The limiting guide sleeve is slidably nested on the adjusting bolt and located between the bolt limiting sleeve and the locking nut. The limiting guide sleeve is a hexagonal pyramidal sleeve structure with a small head and a large tail, and the inner hole of the third hinge sleeve has a constricted structure that fits with the limiting guide sleeve.
[0006] Furthermore, each of the inner sides of the rotating trim strip is provided with a hinge sleeve two at the axial inner end of the corresponding hinge sleeve three, with a gap between the two hinge sleeve two. The inner side of the rotating trim strip two is provided with a hinge sleeve four between the corresponding hinge sleeve two. The inner hole of the hinge sleeve two is the same as the inner hole structure of the hinge sleeve one, and the inner hole of the hinge sleeve four is the same as the inner hole structure of the hinge sleeve three. The hinge sleeve two and the hinge sleeve three, and the hinge sleeve two and the hinge sleeve four are all hinged by hinge rings. The two axial ends of the hinge ring are respectively provided with a hinge protrusion one and a hinge protrusion two. The hinge protrusion one is a circular ring structure, and the hinge protrusion two is a hexagonal nut structure.
[0007] Furthermore, both the inner bottom surface of the slots of the rotating trim strip one and the rotating trim strip two are provided with sealing protrusions along their length.
[0008] To achieve the above objectives, the present invention provides the following technical solution: a freezer, including a freezer body and the freezer door as described above, wherein an annular step for supporting the freezer door is provided at the top frame opening of the freezer body, and a hanging basket is hung on the annular step of the freezer body.
[0009] Furthermore, the annular step is provided with a hanging groove for accommodating the side handle of the hanging basket, and a limiting groove is also provided on the annular step. The bottom ends of the rotating trim strip one and the rotating trim strip two are embedded in the limiting groove, and the bottom surfaces of the glass door one and the glass door two are in contact with the annular step.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The freezer door and freezer, with glass door one and glass door two rotatably connected by a rotating decorative strip one and two that can rotate relative to each other, allow glass door one and glass door two to be opened rotatably, changing the structural form and opening method of the sliding glass door of the freezer, reducing the steps at the freezer frame opening, ensuring the amount of foam layer used at the freezer frame opening, reducing cold loss at the freezer frame opening, and improving the refrigeration performance of the freezer; the damping shaft assembly allows adjustment of the rotational damping force of the rotating decorative strip one and rotating decorative strip two, controlling the force and speed of the glass door one and glass door two when they rotate open, and allowing glass door one and glass door two to be suspended to any position within the rotational opening angle range without manual support, making it flexible and convenient to use; glass door one and glass door two are respectively engaged in the slots of the rotating decorative strip one and rotating decorative strip two, making assembly convenient, operation simple, and product cost low. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the refrigerator door structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of rotating decorative strip one and rotating decorative strip two of this utility model;
[0013] Figure 3 This is a schematic diagram of the hinged structure of rotating trim strip one and rotating trim strip two of this utility model;
[0014] Figure 4 This is a schematic diagram of the damping shaft assembly structure of this utility model;
[0015] Figure 5 This is a schematic diagram of the limiting guide sleeve structure of this utility model;
[0016] Figure 6 This is a schematic diagram of the hinge ring structure of this utility model;
[0017] Figure 7 This is a cross-sectional view of the damping shaft assembly of this utility model;
[0018] Figure 8 This is a partial enlarged view of the rotating decorative strip of this utility model;
[0019] Figure 9 This is a schematic diagram of the structure of the freezer of this utility model;
[0020] Figure 10 This is a schematic diagram of the refrigerator cabinet structure of this utility model;
[0021] Figure 11 This is a schematic diagram of the structure of the freezer of this utility model during use.
[0022] In the diagram: 1. Glass door one; 2. Glass door two; 3. Mounting hole; 4. Rotating trim one; 41. Hinge bushing one; 42. Hinge bushing two; 43. Sealing protrusion; 5. Rotating trim two; 51. Hinge bushing three; 52. Hinge bushing four; 6. Damping pivot assembly; 61. Adjusting bolt; 62. Bolt limit sleeve; 63. Limiting guide sleeve; 64. Locking nut; 65. Hinge ring; 651. Hinge protrusion one; 652. Hinge protrusion two; 7. Refrigerator body; 71. Circular step; 72. Hanging groove; 73. Limiting groove; 8. Hanging basket. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0024] Please see Figure 1-8 This utility model provides a technical solution: a refrigerator door body, including a rotating decorative strip 4 and a rotating decorative strip 5 arranged opposite to each other. The outer surfaces of the rotating decorative strip 4 and the rotating decorative strip 5 are provided with slots, and a glass door 1 is engaged in the slot of the rotating decorative strip 4, and a glass door 2 is engaged in the slot of the rotating decorative strip 2. Both ends of the inner surface of the rotating decorative strip 4 are provided with hinge bushings 41, and the inner surface of the rotating decorative strip 2 is provided with hinge bushings 3 51 at the axial inner end of the corresponding hinge bushing 41. The rotating decorative strip 4 and the rotating decorative strip 2 are rotatably connected by a damping pivot assembly 6 provided between the hinge bushings 41 and the hinge bushings 3 51.
[0025] The damping shaft assembly 6 includes an adjusting bolt 61, a bolt limiting sleeve 62, a limiting guide sleeve 63, and a locking nut 64. The inner hole of the first hinge sleeve 41 is a round hole, and the inner hole of the third hinge sleeve 51 is a hexagonal hole. The adjusting bolt 61 is inserted into the bolt limiting sleeve 62. The inner hole of the bolt limiting sleeve 62 is a countersunk hole structure. The outer end of the bolt limiting sleeve 62 is provided with a shoulder that fits against the end face of the first hinge sleeve 41. The bolt limiting sleeve 62 is inserted into the first hinge sleeve 41 and adjusted... The end of bolt 61 extends into hinge bushing 51. The locking nut 64 is a hexagonal nut structure. The locking nut 64 is nested in hinge bushing 51 and threaded to the end of adjusting bolt 61. Limiting guide sleeve 63 is slidably nested on adjusting bolt 61 and located between bolt limiting sleeve 62 and locking nut 64. The limiting guide sleeve 63 is a hexagonal pyramidal sleeve structure with a small head and a large tail. The inner hole of hinge bushing 51 is provided with a constricted structure that limits and cooperates with the limiting guide sleeve 63.
[0026] Both glass door 1 and glass door 2 are provided with mounting holes 3, which can be used to connect door handles.
[0027] Working principle:
[0028] Glass door 1 and glass door 2 are rotatably connected by rotating trim strips 4 and 5, allowing them to be opened. This changes the structure and opening method of the sliding glass door of the freezer, reduces the steps at the freezer frame opening, ensures sufficient foam layer usage at the frame opening, reduces cold loss at the frame opening, and improves the freezer's cooling performance. Furthermore, by turning the adjusting bolt 61, the locking nut 64 moves axially towards the limiting guide sleeve 63, thereby pressing the locking nut 64 against the limiting guide sleeve 63. The outer wall of the limiting guide sleeve 63 then connects with the inner wall of the hinge bushing 51. The constricted structure of the hole fits tightly, causing the locking nut 64 to exert a counter-pull force on the adjusting bolt 61. The shoulder of the bolt limiting sleeve 62 pushes the hinge sleeve 1 41 to axially compress the hinge sleeve 3 51, increasing the friction between the hinge sleeve 1 41 and the hinge sleeve 3 51. This achieves the effect of adjusting the rotation damping of the rotating trim strip 1 4 and the rotating trim strip 2 5, controlling the force and speed of the glass door 1 1 and the glass door 2 2 when they rotate and open. It also allows the glass door 1 1 and the glass door 2 2 to be suspended in any position within the rotation opening angle range (0-180°) without the need for hand support, making it flexible and convenient to use.
[0029] Furthermore, glass door 1 and glass door 2 are respectively snapped into the slots of rotating trim strip 4 and rotating trim strip 5, making assembly convenient, operation simple, and product cost low.
[0030] Furthermore, the inner side of the rotating trim 4 is provided with hinge sleeve 2 42 at the axial inner end of the corresponding hinge sleeve 3 51, with a gap between the two hinge sleeve 2 42. The inner side of the rotating trim 5 is provided with hinge sleeve 4 52 between the corresponding hinge sleeve 2 42. The inner hole of the hinge sleeve 2 42 is the same as the inner hole structure of the hinge sleeve 1 41, and the inner hole of the hinge sleeve 4 52 is the same as the inner hole structure of the hinge sleeve 3 51. The hinge sleeve 2 42 and the hinge sleeve 3 51, and the hinge sleeve 2 42 and the hinge sleeve 4 52 are all hinged by hinge ring 65; the hinge ring 65 The axial ends of 5 are respectively provided with a first hinge protrusion 651 and a second hinge protrusion 652. The first hinge protrusion 651 is a ring structure and is rotatably nested in the inner hole of the second hinge sleeve 42. The second hinge protrusion 652 is a hexagonal nut structure and is nested in the inner hole of the corresponding third hinge sleeve 51 and fourth hinge sleeve 52. The hinge between the second hinge sleeve 42 and the third hinge sleeve 51, and between the second hinge sleeve 42 and the fourth hinge sleeve 52, improves the stability of the rotating trim 4 and the second rotating trim 5 when they rotate relative to each other.
[0031] Furthermore, the inner bottom surface of the slots of the rotating trim strip 1 4 and the rotating trim strip 2 5 are provided with sealing protrusions 43 along their length direction. The sealing protrusions 43 make the glass door 1 and the glass door 2 more securely engaged in the slots, and improve the sealing between the glass door 1 and the rotating trim strip 4 and between the glass door 2 and the rotating trim strip 2 5.
[0032] The refrigerator door disclosed in this embodiment has glass door 1 and glass door 2 rotatably connected by a rotating trim strip 4 and a rotating trim strip 5 that can rotate relative to each other. Glass door 1 and glass door 2 can be rotated open, changing the structural form and opening method of the refrigerator's sliding glass door, reducing the steps at the refrigerator frame opening, ensuring the amount of foam layer used at the refrigerator frame opening, reducing cold loss at the refrigerator frame opening, and improving the refrigerator's refrigeration performance. The damping shaft assembly 6 can adjust the rotational damping force of the rotating trim strip 4 and the rotating trim strip 5, controlling the force and speed of the glass door 1 and glass door 2 when rotating open, and allowing the glass door 1 and glass door 2 to be suspended to any position within the rotational opening angle range without manual support, making it flexible and convenient to use. Glass door 1 and glass door 2 are respectively snapped into the slots of the rotating trim strip 4 and the rotating trim strip 5, making assembly convenient, operation simple, and product cost low. Example 2
[0033] Please see Figure 1-11This utility model provides a technical solution: a freezer, including a freezer body 7 and the freezer door as described above. The top frame of the freezer body 7 is provided with an annular step 71 for supporting the freezer door, and a hanging basket 8 is hung on the annular step 71 of the freezer body 7. The annular step 71 is provided with a hanging groove 72 for accommodating the side handle of the hanging basket 8. The annular step 71 is also provided with a limiting groove 73. The bottom ends of the rotating trim strip 1 4 and the rotating trim strip 2 5 are embedded in the limiting groove 73, and the bottom surfaces of the glass door 1 and the glass door 2 are in contact with the annular step 71.
[0034] The freezer disclosed in this embodiment has glass doors 1 and 2 that can be rotated open. The freezer adopts a rotating door design, with fewer steps at the freezer frame opening to ensure sufficient foam layer usage, reduce cold loss at the frame opening, and improve the freezer's cooling performance. The annular step 71 has a hanging groove 72 for accommodating the side handle of the hanging basket 8, which does not affect the rotation of the freezer door. The annular step 71 also has a limiting groove 73 to limit the rotation of the rotating trim strip 4 and the rotating trim strip 5, preventing the freezer door from wobbling left and right when rotating to open glass door 1 or glass door 2. The structure is simple and easy to use.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A refrigerator door, comprising a first rotating trim strip and a second rotating trim strip arranged opposite to each other, characterized in that: Both the outer surfaces of the rotating trim strip 1 and the rotating trim strip 2 are provided with slots, and a glass door 1 is engaged in the slot of the rotating trim strip 1, and a glass door 2 is engaged in the slot of the rotating trim strip 2; both ends of the inner surface of the rotating trim strip 1 are provided with hinge sleeve 1, and the inner surface of the rotating trim strip 2 is provided with hinge sleeve 3 at the axial inner end of the corresponding hinge sleeve 1, and the rotating trim strip 1 and the rotating trim strip 2 are rotatably connected by a damping shaft assembly provided between the hinge sleeve 1 and the hinge sleeve 3.
2. A freezer door according to claim 1, characterized in that: The damping shaft assembly includes an adjusting bolt, a bolt limiting sleeve, a limiting guide sleeve, and a locking nut. The inner hole of the first hinge sleeve is a round hole, and the inner hole of the third hinge sleeve is a hexagonal hole. The adjusting bolt is inserted into the bolt limiting sleeve, the inner hole of which is a countersunk hole structure. The outer end of the bolt limiting sleeve has a shoulder that fits against the end face of the first hinge sleeve. The bolt limiting sleeve is inserted into the first hinge sleeve, and the end of the adjusting bolt extends into the third hinge sleeve. The locking nut is a hexagonal nut structure, nested in the third hinge sleeve and threaded to the end of the adjusting bolt. The limiting guide sleeve is slidably nested on the adjusting bolt and located between the bolt limiting sleeve and the locking nut. The limiting guide sleeve is a hexagonal pyramidal sleeve structure with a small head and a large tail, and the inner hole of the third hinge sleeve has a constricted structure that fits with the limiting guide sleeve.
3. A freezer door according to claim 2, characterized in that: The inner side of the rotating trim strip is provided with hinge sleeve 2 at the axial inner end of the corresponding hinge sleeve 3, and there is a gap between the two hinge sleeve 2. The inner side of the rotating trim strip 2 is provided with hinge sleeve 4 between the corresponding hinge sleeve 2. The inner hole of the hinge sleeve 2 is the same as the inner hole structure of the hinge sleeve 1, and the inner hole of the hinge sleeve 4 is the same as the inner hole structure of the hinge sleeve 3. The hinge sleeve 2 and the hinge sleeve 3, and the hinge sleeve 2 and the hinge sleeve 4 are all hinged by hinge rings. The two axial ends of the hinge ring are respectively provided with hinge protrusion 1 and hinge protrusion 2. The hinge protrusion 1 is a circular ring structure, and the hinge protrusion 2 is a hexagonal nut structure.
4. A freezer door according to claim 1, characterized in that: Both rotating trim strip one and rotating trim strip two have sealing ribs along their length on the bottom surface inside the slots.
5. A freezer, characterized in that: The refrigerator includes a refrigerator body and a refrigerator door as described in any one of claims 1-4. The refrigerator body has an annular step at the top frame opening for supporting the refrigerator door, and a hanging basket is attached to the annular step of the refrigerator body.
6. A freezer according to claim 5, characterized in that: The annular step is provided with a hanging groove for accommodating the side handle of the hanging basket. A limiting groove is also provided on the annular step. The bottom ends of the rotating decorative strip one and the rotating decorative strip two are embedded in the limiting groove, and the bottom surfaces of the glass door one and the glass door two are in contact with the annular step.
Citation Information
Patent Citations
A horizontal refrigerator
CN221055322U