Hinge mechanism and embedded refrigeration device

Abstract

The application discloses a hinge mechanism and an embedded refrigeration device. The hinge mechanism has opposite pivot sides and an opening side. The hinge mechanism comprises a first hinge part mounted on a box body and a second hinge part mounted on a door body. One of the first hinge part and the second hinge part is provided with a hinge groove, and the other is provided with a hinge shaft matched with the hinge groove. A guide structure is further arranged between the first hinge part and the second hinge part to guide the relative movement between the hinge groove and the hinge shaft. When the second hinge part rotates and opens in a direction away from the first hinge part, the second hinge part first moves to the opening side, then moves to the pivot side, and finally moves to the opening side. The movement track of the door body can be controlled, so that the door body can adapt to various application scenarios, especially seamless embedding.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a hinge mechanism and an embedded refrigeration device having the hinge mechanism. Background Art

[0002] With the progress of society and the improvement of people's living standards, ordinary users are paying more and more attention to the placement and placement of various home appliances in the house. In view of the current home decoration style, some families pursue style integration, so they need to put home appliances (such as refrigerators, microwave ovens, dishwashers, etc.) into cabinets to form the so-called embedded home appliances.

[0003] For built-in home appliances, when the door rotates around the hinge axis to open, the side of the door where it is hinged to the cabinet often protrudes from the side wall of the cabinet. Generally, a preset gap is left between the built-in home appliance and the cabinet wall to prevent the door from colliding with the cabinet wall during the opening process.

[0004] However, on the one hand, the gap between the built-in appliances and the cabinet walls is small, which makes it easy for dust to accumulate and difficult to clean; on the other hand, the built-in appliances cannot be seamlessly integrated with the cabinets, affecting the appearance.

[0005] In view of this, it is necessary to improve the existing hinge mechanism and the embedded refrigeration device having the hinge mechanism to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a hinge mechanism and an embedded refrigeration device having the hinge mechanism.

[0007] In order to achieve one of the above-mentioned objects of the invention, the present invention provides a hinge mechanism having a relative pivoting side and an opening side, the hinge mechanism comprising a first hinge member installed on a box body and a second hinge member installed on a door body, one of the first hinge member and the second hinge member is provided with a hinge groove, and the other is provided with a hinge shaft matching the hinge groove; a guiding structure is also provided between the first hinge member and the second hinge member for guiding the relative movement between the hinge groove and the hinge shaft, when the second hinge member rotates to open in a direction away from the first hinge member, the second hinge member first moves toward the opening side, then moves toward the pivoting side, and then moves toward the opening side.

[0008] As a further improvement of the present invention, the hinge groove is provided on the first hinge component, and the hinge groove extends along an arrangement direction of the pivoting side and the opening side.

[0009] As a further improvement of the present application, the guide structure comprises a guide shaft arranged on one of the first hinge member and the second hinge member, and a guide groove arranged on the other and cooperating with the guide shaft, the guide groove comprising a first groove segment, a second groove segment and a third groove segment connected in sequence in the direction from the opening side to the pivotal side, when the guide shaft is in the first groove segment and moves to the second groove segment, the second hinge member moves to the opening side, when the guide shaft is in the second groove segment and moves to the third groove segment, the second hinge member moves to the pivotal side, and when the guide shaft is in the third groove segment and moves away from the second groove segment, the second hinge member moves to the opening side.

[0010] As a further improvement of the present application, the guide groove and the hinge shaft are arranged on the first hinge member or on the second hinge member, the first groove segment gradually approaches the hinge shaft from one end away from the second groove segment, the second groove segment gradually moves away from the hinge shaft from one end close to the first groove segment, and the third groove segment gradually approaches the hinge shaft from one end close to the second groove segment.

[0011] As a further improvement of the present application, the guide groove comprises a groove wall and an arc-shaped groove bottom connected to the groove wall in a smooth transition, and the end of the guide shaft cooperating with the arc-shaped groove bottom has an arc-shaped end face, the shape of the arc-shaped end face matches the shape of the arc-shaped groove bottom.

[0012] As a further improvement of the present application, the hinge groove comprises a transition groove segment, and when the guide shaft is located at the junction of the second groove segment and the third groove segment, the hinge shaft is located in the transition groove segment.

[0013] As a further improvement of the present application, the guide shaft and the hinge groove are arranged on the first hinge member, the first hinge member comprises a hinge plate for fixing to the cabinet and an auxiliary plate located on the side of the hinge plate facing the second hinge member, the guide shaft protrudes from the hinge plate towards the second hinge member, the auxiliary plate is connected to the guide shaft, and the hinge groove is arranged on the auxiliary plate.

[0014] As a further improvement of the present application, the second hinge member comprises a fixing seat fixed to the door body, the side of the fixing seat facing the hinge plate has a receiving groove and a shielding cover for shielding the receiving groove, the shielding cover has a through groove for the movement of the guide shaft, and the auxiliary plate is limited in the receiving space formed by the receiving groove and the shielding cover.

[0015] As a further improvement of the present application, the hinge mechanism further comprises a limiting plate arranged between the auxiliary plate and the hinge plate, and the opposite sides of the limiting plate are respectively abutted on the hinge plate and the auxiliary plate.

[0016] As a further improvement of the present application, the auxiliary plate is sleeved on the guide shaft, and one of the auxiliary plate and the hinge plate is provided with a positioning shaft protruding towards the other one, and the other one is provided with a positioning hole matched with the positioning shaft.

[0017] As a further improvement of the present application, when the second hinge part rotates to open in a direction away from the first hinge part, the second hinge part rotates a preset angle in place before moving to the opening side, moving to the pivoting side and then moving to the opening side.

[0018] As a further improvement of the present application, one end of the hinge slot close to the pivoting side has a notch; or the hinge slot is a closed long slot.

[0019] As a further improvement of the present application, a limiting structure is arranged between the first hinge part and the second hinge part, and the limiting structure is used to limit the maximum opening angle of the second hinge part.

[0020] In order to achieve the above-mentioned purposes, the present application further provides an embedded refrigeration device, which comprises a box body, a door body and the above-mentioned hinge mechanism for rotationally connecting the door body to the box body.

[0021] Compared with the prior art, the hinge mechanism in the present application can drive the door body to move to the opening side first during the rotation opening process, that is, gradually away from the cabinet wall located at the pivoting side, so as to increase the distance between the end of the door body located at the pivoting side and the cabinet wall located at the pivoting side, and avoid the cabinet wall. On the one hand, even if the embedded refrigeration device is seamlessly embedded with the cabinet, interference between the door body and the cabinet wall can be avoided during the door opening process; on the other hand, more space can be provided for the door body to move to the pivoting side during the subsequent further opening process, so as to avoid interference between the door body and the cabinet wall during the opening process. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the embedded refrigeration device in the present application;

[0023] Figure 2 is Figure 1 is an enlarged view of A in

[0024] Figure 3 is an exploded view of the hinge mechanism in a specific embodiment of the present application;

[0025] Figure 4 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state; Figure 3 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state;

[0026] Figure 5 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state; Figure 3 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state;

[0027] Figure 6 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state; Figure 3 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state;

[0028] Figure 7 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state; Figure 3 is a structural schematic view of the hinge mechanism in which the second hinge member is in a closed state;

[0029] Figure 8 is an exploded view of the hinge mechanism in another embodiment of the present application;

[0030] Figure 9 is an exploded view of the hinge mechanism in another embodiment of the present application. DETAILED DESCRIPTION

[0031] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. Figures 1-9 The present application is not limited to these embodiments, and any changes in structure, method, or function made by those of ordinary skill in the art based on these embodiments are included within the scope of the present application.

[0032] The words expressing position and direction described in the present application are taken as "front" on the side where the door body is located when the refrigeration device is normally used. The terms first, second, third, fourth, etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In addition, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, the connection can be direct connection or indirect connection through an intermediate medium, and can be fixed connection or movable connection or detachable connection or integral connection. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Referring to Figure 1 The present application provides a hinge mechanism 10 and an embedded refrigeration device 100 having the hinge mechanism 10, as shown in the drawings. The embedded refrigeration device 100 comprises a cabinet 20, a door body 30, and the hinge mechanism 10 for rotatingly connecting the door body 30 to the cabinet 20.

[0034] Of course, it can be understood that the hinge mechanism 10 in the present application is not limited to be applied to the built-in household appliance, and is not limited to be applied to the refrigeration device.

[0035] Please refer to Figure 3 Fig. 1 shows the hinge mechanism 10 in a specific embodiment of the present application. The hinge mechanism 10 comprises a first hinge piece 1 mounted on the cabinet 20, a second hinge piece 2 mounted on the door body 30, and the door body 30 is connected to the cabinet 20 by the cooperation of the first hinge piece 1 and the second hinge piece 2, and the movement track of the door body 30 can be controlled during the opening process.

[0036] It can be understood that during the opening and closing of the door body 30, the second hinge piece 2 rotates synchronously, and the movement track of the door body 30 is the same as that of the second hinge piece 2.

[0037] Specifically, the hinge mechanism 10 is defined to have opposite pivot sides and opening sides. The pivot side refers to the side corresponding to the rotating end of the door body 30 when the door body 30 is opened or closed, and the opening side refers to the side corresponding to the free end of the door body 30 when the door body 30 is opened or closed.

[0038] Further, one of the first hinge piece 1 and the second hinge piece 2 is provided with a hinge groove 11, and the other is provided with a hinge shaft 21 matched with the hinge groove 11, and a guide structure 3 is further provided between the first hinge piece 1 and the second hinge piece 2 to guide the relative movement between the hinge groove 11 and the hinge shaft 21. During the opening process, that is, during the rotation and opening process of the second hinge piece 2 away from the first hinge piece 1, the movement track of the second hinge piece 2 is that the second hinge piece 2 moves to the opening side first, then to the pivot side, and then to the opening side again during the rotation and opening process, and the movement track of the door body 30 is that the door body 30 moves to the opening side first, then to the pivot side, and then to the opening side again during the rotation and opening process.

[0039] During the rotation and opening process of the door body 30, the door body 30 moves to the opening side first, that is, gradually away from the cabinet wall located at the pivot side, which can increase the distance between the end of the door body 30 located at the pivot side and the cabinet wall located at the pivot side, and avoid the cabinet wall. On the one hand, even if the built-in refrigeration device 100 is seamlessly embedded between the cabinet, during the opening process, interference between the door body 30 and the cabinet wall can be avoided; on the other hand, more space can be provided for the door body 30 to move to the pivot side during the subsequent further opening process, so as to avoid interference between the door body 30 and the cabinet wall during the opening process.

[0040] After the door body 30 moves to the opening side, the door body 30 moves to the pivot side to further open the door body 30.

[0041] In the prior embedded refrigeration device 100, for the embedded refrigeration device 100 arranged such that the front wall 301 of the door body 30 is flush with the front end of the cabinet wall when the door body 30 is in the closed state, after the door body 30 is opened to the position where the front wall 301 is flush with the cabinet wall (the door body 30 is opened by about 90°), interference occurs between the front wall 301 and the cabinet wall, and the door body 30 cannot be further opened, that is, the maximum opening angle of the door body 30 is 90°, which affects the user to access the items in the refrigeration device. In the present application, after the door body 30 moves to the pivot side, the door body 30 moves to the opening side, which can avoid interference between the door body 30 and the cabinet wall when the door body 30 is further opened, so that the opening angle of the door body 30 (greater than 120°) can be increased, and the user can access the items more conveniently.

[0042] In the present embodiment, the hinge slot 11 is arranged on the first hinge member 1, and the hinge slot 11 extends along the arrangement direction of the pivot side and the opening side. At this time, the hinge shaft 21 is arranged on the second hinge member 2. During the opening of the door body 30, the hinge shaft 21 first moves along the hinge slot 11 to the end of the hinge slot 11 close to the opening side, then moves along the hinge slot 11 to the end of the hinge slot 11 close to the pivot side, and then moves along the hinge slot 11 to the end of the hinge slot 11 close to the opening side.

[0043] It can be understood that the hinge shaft 21 is arranged on the second hinge member 2, and the second hinge member 2 is fixed on the door body 30, so that the movement trajectories of the door body 30, the second hinge member 2, and the hinge shaft 21 are the same.

[0044] Of course, this is not limiting, and in other embodiments, the hinge slot 11 can also be arranged on the second hinge member 2, and the corresponding hinge shaft 21 is arranged on the first hinge member 1. At this time, the extension direction of the hinge slot 11 is arranged such that the door body 30 can move according to the above movement trajectory during the opening of the door body 30.

[0045] Further, in the present embodiment, the end of the hinge slot 11 close to the pivot side has a notch to reduce the interference of the hinge shaft 21 to the guide structure 3.

[0046] Of course, this is not limiting, and in other embodiments, the hinge slot 11 can also be arranged on the second hinge member 2, and the corresponding hinge shaft 21 is arranged on the first hinge member 1. At this time, the extension direction of the hinge slot 11 is arranged such that the door body 30 can move according to the above movement trajectory during the opening of the door body 30. Figure 8In another specific embodiment shown, the hinge slot 11 ′ in the hinge mechanism 10 ′ is a closed long slot, which can prevent the hinge shaft 21 from escaping from the hinge slot 11 ′ during opening and closing the door body 30 , thereby enhancing the stability of the hinge mechanism 10 .

[0047] Furthermore, the guide structure 3 includes a guide shaft 31 provided on one of the first hinge component 1 and the second hinge component 2 , and a guide groove 32 provided on the other hinge component and matched with the guide shaft 31 .

[0048] Combine Figure 5 As shown, along the direction from the opening side to the pivoting side, the guide groove 32 includes a first groove section 321, a second groove section 322, and a third groove section 323 that are connected in sequence.

[0049] Please refer to Figure 4 As shown, when the second hinge member 2 is in a closed state, the guide shaft 31 is located at an end of the first slot section 321 away from the second slot section 322 .

[0050] Please refer to Figure 5 As shown, when the second hinge member 2 rotates to open, when the guide shaft 31 is in the first slot section 321 and moves toward the second slot section 322, the hinge shaft 21 is guided to move along the hinge slot 11 toward one end of the opening side, so as to drive the second hinge member 2 / door body 30 to move toward the opening side first.

[0051] Please refer to Figure 6 As shown, when the second hinge component 2 rotates open until the guide shaft 31 is located at the intersection of the first slot section 321 and the second slot section 322, and continues to rotate open, the guide shaft 31 is in the second slot section 322 and moves toward the third slot section 323, guiding the hinge shaft 21 to move along the hinge slot 11 toward the end of the hinge slot 11 close to the pivot side, thereby driving the second hinge component 2 / door body 30 to move toward the pivot side.

[0052] Please refer to Figure 7 As shown, when the second hinge component 2 rotates open until the guide shaft 31 is located at the intersection of the second slot section 322 and the third slot section 323, and continues to rotate open, the guide shaft 31 is in the third slot section 323 and moves away from the second slot section 322, guiding the hinge shaft 21 along the hinge slot 11 to move toward the end of the hinge slot 11 close to the opening side, thereby driving the second hinge component 2 / door body 30 to move toward the opening side.

[0053] Specifically, in the embodiment that the hinge shaft 21 and the guide slot 32 are both arranged on the second hinge piece 2, the first slot section 321 gradually approaches the hinge shaft 21 from one end away from the second slot section 322, the second slot section 322 gradually moves away from the hinge shaft 21 from one end close to the first slot section 321, and the third slot section 323 gradually approaches the hinge shaft 21 from one end close to the second slot section 322. During the movement of the guide shaft 31 in the first slot section 321 towards the second slot section 322, the distance between the guide shaft 31 and the hinge shaft 21 gradually decreases, while the position of the guide shaft 31 remains unchanged, thereby guiding the hinge shaft 21 to gradually move along the hinge slot 11 to the opening side, and moving the door body 30 to the opening side. During the movement of the guide shaft 31 in the second slot section 322 towards the third slot section 323, the distance between the guide shaft 31 and the hinge shaft 21 gradually increases, while the position of the guide shaft 31 remains unchanged, thereby guiding the hinge shaft 21 to gradually move along the hinge slot 11 to the pivoting side, and moving the door body 30 to the pivoting side while being opened. During the movement of the guide shaft 31 in the third slot section 323 away from the second slot section 322, the distance between the guide shaft 31 and the hinge shaft 21 gradually decreases, while the position of the guide shaft 31 remains unchanged, thereby guiding the hinge shaft 21 to gradually move along the hinge slot 11 to the opening side, so as to avoid interference between the door body 30 and the cabinet wall during further opening, increase the maximum opening angle, and facilitate the user to access the items.

[0054] Of course, it is not limited thereto, and it can be understood that, in other embodiments, the specific structure of the guide slot 32 can be arranged as long as it can guide the hinge shaft 21 to move along the preset movement track.

[0055] Further, when the second hinge piece 2 is rotated and opened away from the first hinge piece 1, the second hinge piece 2 first rotates by a preset angle in place, and drives the door body 30 to first rotate by a preset angle in place. That is, the movement track of the second hinge piece 2 is that, during the rotation and opening, the second hinge piece 2 first rotates by a preset angle in place, then moves to the opening side, then moves to the pivoting side, and then moves to the opening side. The movement track of the door body 30 is that, during the rotation and opening, the door body 30 first rotates by a preset angle, then moves to the opening side, then moves to the pivoting side, and then moves to the opening side. Therefore, the hinge mechanism 10 in the present application can also be applied to a side-by-side door refrigerator with a turnover beam, and the versatility of the hinge mechanism 10 is enhanced.

[0056] Specifically, the guide groove 32 further comprises a fourth groove section at one end of the first groove section 321 away from the second groove section 322, the fourth groove section is in communication with the first groove section 321, and the fourth groove section is an arc-shaped groove with the hinge shaft 21 as the center, so that the door body 30 can rotate in place when the guide shaft 31 moves in the fourth groove section.

[0057] Further, in the embodiment shown, Figure 3 In the embodiment shown, the guide groove 32 comprises a groove wall and an arc-shaped groove bottom connected to the groove wall in a smooth transition, and the end of the guide shaft 31 matched with the arc-shaped groove bottom has an arc-shaped end face 311, the shape of the arc-shaped end face 311 matches the shape of the arc-shaped groove bottom. It can enhance the smoothness during the opening and closing of the door body 30, and make the cooperation between the guide shaft 31 and the guide groove 32 more smooth. Of course, it is not limited thereto, the guide shaft can also be directly provided in a columnar shape, at this time, the groove wall and the groove bottom of the guide groove are provided in a plate shape matched with the guide shaft.

[0058] Further, the part of the hinge shaft 21 matched with the hinge groove 11 is in a columnar shape, that is, the shaft diameter of the part of the hinge shaft 21 matched with the hinge groove 11 is the same as the groove width of the hinge groove 11, to enhance the stability of the movement of the hinge mechanism 10. Of course, it is not limited thereto.

[0059] Of course, it is not limited thereto, that is, the guide shaft 31 can also be provided in an overall columnar shape, at this time, the shape of the hinge groove 11 can be set to a shape matched with the columnar guide shaft 31.

[0060] Further, the hinge groove 11 comprises a transition groove section 111, when the guide shaft 31 is located at the junction of the second groove section 322 and the third groove section 323, the hinge shaft 21 is located in the transition groove section 111. The guide shaft 31 can be freely switched between the second groove section 322 and the third groove section 323.

[0061] Specifically, the transition groove section 111 is located at one end of the hinge groove 11 close to the pivot side, and the transition groove section 111 is an arc-shaped groove section extending towards the guide groove 32.

[0062] Please refer to Figure 3 , Figure 8 , Figure 9As shown, the guide groove 32 and the hinge shaft 21 are arranged on the second hinge member 2, and the guide shaft 31 and the hinge groove 11 are arranged on the first hinge member 1. Of course, this is not restrictive, and it can be understood that in other embodiments, the guide groove 32 and the hinge shaft 21 can also be arranged on the first hinge member 1, and the guide shaft 31 and the hinge groove 11 are arranged on the second hinge member 2; or the guide groove 32 and the hinge groove 11 are arranged on one of the first hinge member 1 and the second hinge member 2, and the guide shaft 31 and the hinge shaft 21 are arranged on the other one of the first hinge member 1 and the second hinge member 2.

[0063] In the following, the specific structure of the first hinge member 1 and the second hinge member 2 will be described with reference to the hinge mechanism 10, 10', 10" in the embodiments shown in the drawings. Figure 3 、 Figure 8 、 Figure 9 Of course, this is not restrictive.

[0064] Specifically, the first hinge member 1 includes a hinge plate 12 fixed to the cabinet 20, an auxiliary plate 13 fixed to one side of the hinge plate 12 facing the second hinge member 2, the guide shaft 31 protruding from the hinge plate 12 towards the second hinge member 2, and the hinge groove 11 arranged on the auxiliary plate 13. That is, the auxiliary plate 13 is additionally arranged to form the hinge groove 11, which can maintain the original strength of the hinge plate 12.

[0065] Please refer to Figure 3 As shown, the auxiliary plate 13 is sleeved on the guide shaft 31, and the auxiliary plate 13 and the guide shaft 31 are fixed together by fasteners to indirectly fix the auxiliary plate 13 on the hinge plate 12.

[0066] Please refer to Figure 9 As shown, in another specific embodiment of the present application, the hinge mechanism 10", the auxiliary plate 13 is sleeved on the guide shaft 31, and the auxiliary plate 13 and the hinge plate 12 are provided with a positioning shaft 131 protruding towards the other one and a positioning hole 121 matched with the positioning shaft 131 on the other one, which facilitates the positioning installation of the auxiliary plate 13 and does not affect the strength of the guide shaft 31.

[0067] At this time, the shielding cover 23 is provided with a gap slot 233 for the movement of the positioning shaft 131 to avoid interference between the positioning shaft 131 and the shielding cover 23.

[0068] Further, the second hinge member 2 comprises a fixing base 22 fixed to the door body 30, the fixing base 22 has a receiving groove 221 on one side of the hinge plate 12, a cover 23 is used to shield the receiving groove 221, the cover 23 has a through groove 231 for the guide shaft 31 to move, and the auxiliary plate 13 is limited in the receiving space formed by the receiving groove 221 and the cover 23.

[0069] It can be understood that the shape of the through groove 231 is similar to that of the guide groove 32 and is not smaller than the guide groove 32.

[0070] Specifically, one side of the auxiliary plate 13 abuts against the cover 23, and the other side abuts against the groove bottom of the receiving groove 221, so as to limit the auxiliary plate 13 and enhance the stability of the hinge mechanism 10.

[0071] It can be understood that the guide groove 32 is recessed from the groove bottom of the receiving groove 221 to the side away from the first hinge member 1, so that the guide groove 32 is in communication with the receiving groove 221, and after the auxiliary plate 13 is located in the receiving groove 221, the guide shaft 31 protrudes into the guide groove 32.

[0072] Meanwhile, the hinge shaft 21 protrudes from the groove bottom of the receiving groove 221 towards the first hinge member 1, and after the auxiliary plate 13 is located in the receiving groove 221, the hinge groove 11 cooperates with the hinge shaft 21.

[0073] Further, the end of the hinge shaft 21 away from the fixing base 22 is located in the limiting hole 232 on the cover 23. The relative position between the hinge shaft 21 and the cover 23 can be limited, and the cover 23 can be positioned.

[0074] Further, the hinge mechanism 10 further comprises a limiting plate 4 arranged between the cover 23 and the hinge plate 12, and the opposite sides of the limiting plate 4 abut against the hinge plate 12 and the cover 23 respectively. In order to prevent the end of the door body 30 away from the cabinet 20 from tilting and drooping under the dead weight of the door body 30 during the opening of the door body 30.

[0075] Specifically, the limiting plate 4 is sleeved on the guide shaft 31. Of course, it is not limited to this.

[0076] Further, as shown in Figure 8 , Figure 9 , the limiting structure 5 is arranged between the first hinge member 1 and the second hinge member 2, and the limiting structure 5 is used to limit the maximum opening angle of the second hinge member 2, so as to limit the maximum opening angle of the door body 30.

[0077] Specifically, the limiting structure 5 comprises a first limiting block 51 provided on the shielding cover 23 and protruding towards the first hinge piece 1, and a second limiting block 52 provided on the hinge plate 12, so that after the door body 30 is opened to abut against the first limiting block 51 and the second limiting block 52, the door body 30 is limited to continue moving towards the opening side and to continue rotating, i.e., the door body 30 is limited to continue opening, at this time, the door body 30 is opened to the maximum angle, and further opening of the door body 30 to interfere with the cabinet wall can be prevented, so as to avoid knocking damage.

[0078] The assembling steps of the hinge mechanism 10 in the present application are as follows:

[0079] The limiting plate 4, the shielding cover 23 and the auxiliary plate 13 are sequentially sleeved on the guide shaft 31, wherein the auxiliary plate 13 is fixedly connected with the guide shaft 31, then the guide shaft 31 is matched with the guide groove 32, the hinge shaft 21 is matched with the hinge groove 11, and finally the shielding cover 23 is fixed on the fixed seat 22 by means of screws or other fasteners.

[0080] Further, please refer to Figure 2 As shown in the figure, the fixed seat 22 and the door body 30 have a predetermined positioning structure 40 therebetween, so as to position the fixed seat 22, which is beneficial to the cooperation between the first hinge seat and the second hinge seat.

[0081] In a specific embodiment, the predetermined positioning structure 40 comprises a positioning block 401 provided on one of the fixed seat 22 and the door body 30, and a positioning groove 402 provided on the other one, and the cooperation between the positioning block 401 and the positioning groove 402 realizes the predetermined positioning between the fixed seat 22 and the door body 30.

[0082] Further, the size of the positioning groove 402 is greater than the size of the positioning block 401, and after the positioning block 401 is positioned in the positioning groove 402, the positioning block 401 and the positioning groove 402 have an adjusting gap therebetween, so as to finely adjust the cooperation between the first hinge piece 1 and the second hinge piece 2.

[0083] To sum up, the hinge mechanism 10, 10', 10" in the present application can drive the door body 30 to move to the opening side first, i.e. gradually away from the cabinet wall on the pivot side, can increase the distance between the one end of the door body 30 on the pivot side and the cabinet wall on the pivot side, and avoid the cabinet wall. On the one hand, even if the refrigeration device is seamlessly embedded with the cabinet, the interference between the door body 30 and the cabinet wall can be avoided during the door opening process. On the other hand, a larger space can be provided for the door body 30 to move to the pivot side during the subsequent further opening process of the door body 30, so as to avoid the interference between the door body 30 and the cabinet wall during the opening process.

[0084] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, for example, the technologies in different embodiments can be used together to achieve the corresponding effects, and the solutions are within the protection scope of the present application. It should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A hinge mechanism having opposite pivoting and opening sides, the hinge mechanism comprising a first hinge member mounted on a box body and a second hinge member mounted on a door body, one of the first hinge member and the second hinge member being provided with a hinge groove, and the other being provided with a hinge shaft that cooperates with the hinge groove; characterized in that: A guide structure is further provided between the first hinge member and the second hinge member for guiding relative movement between the hinge groove and the hinge shaft, so that when the second hinge member rotates and opens in a direction away from the first hinge member, the second hinge member first moves toward the opening side, then toward the pivoting side, and finally toward the opening side; The guide structure includes a guide shaft provided on one of the first hinge member and the second hinge member, and a guide groove provided on the other and cooperating with the guide shaft; the guide shaft and the hinge groove are provided on the first hinge member; the first hinge member includes a hinge plate for fixing to the box body, and an auxiliary plate located on the side of the hinge plate facing the second hinge member, the guide shaft protrudes from the hinge plate toward the second hinge member, the auxiliary plate is connected to the guide shaft, and the hinge groove is provided on the auxiliary plate.

2. The hinge mechanism according to claim 1, wherein: The hinge groove is disposed on the first hinge component, and the hinge groove extends along an arrangement direction of the pivoting side and the opening side.

3. The hinge mechanism according to claim 1, wherein: Along the direction from the opening side to the pivot side, the guide groove includes a first groove section, a second groove section, and a third groove section that are connected in sequence. When the guide shaft is in the first groove section and moves toward the second groove section, the second hinge member moves toward the opening side. When the guide shaft is in the second groove section and moves toward the third groove section, the second hinge member moves toward the pivot side. When the guide shaft is in the third groove section and moves away from the second groove section, the second hinge member moves toward the opening side.

4. The hinge mechanism according to claim 3, wherein: The guide groove and the hinge shaft are both arranged on the first hinge component or on the second hinge component; the first groove section gradually approaches the hinge shaft from the end away from the second groove section, the second groove section gradually moves away from the hinge shaft from the end close to the first groove section, and the third groove section gradually approaches the hinge shaft from the end close to the second groove section.

5. The hinge mechanism according to claim 3, wherein: The guide groove includes a groove wall and an arcuate groove bottom connected to the groove wall in a smooth transition. One end of the guide shaft that matches the arcuate groove bottom has an arcuate end face, and the shape of the arcuate end face matches the shape of the arcuate groove bottom.

6. The hinge mechanism according to claim 3, wherein: The hinge groove includes a transition groove section. When the guide shaft is located at the junction of the second groove section and the third groove section, the hinge shaft is located in the transition groove section.

7. The hinge mechanism according to claim 1, wherein: The second hinge member includes a fixing seat fixed on the door body, the fixing seat has a receiving groove and a shielding cover for shielding the receiving groove on the side facing the hinge plate, the shielding cover has a through groove for the guide shaft to move, and the auxiliary plate is limited to the receiving space formed by the receiving groove and the shielding cover.

8. The hinge mechanism according to claim 7, wherein: The hinge mechanism further includes a limiting plate arranged between the auxiliary plate and the hinge plate, and opposite sides of the limiting plate are respectively abutted against the hinge plate and the auxiliary plate.

9. The hinge mechanism according to claim 1, wherein: The auxiliary plate is sleeved on the guide shaft. One of the auxiliary plate and the hinge plate is provided with a positioning shaft protruding toward the other, and the other is provided with a positioning hole matched with the positioning shaft.

10. The hinge mechanism according to claim 1, wherein: When the second hinge rotates to open in a direction away from the first hinge, the second hinge first rotates in place by a preset angle before moving toward the opening side, then toward the pivoting side, and finally toward the opening side.

11. The hinge mechanism according to claim 1, wherein: One end of the hinge slot close to the pivoting side has a notch; or the hinge slot is a closed long slot.

12. The hinge mechanism according to claim 1, wherein: A limiting structure is provided between the first hinge component and the second hinge component, and the limiting structure is used to limit the maximum opening angle of the second hinge component.

13. An embedded refrigeration device comprising a housing, a door, and a hinge mechanism for rotatably connecting the door to the housing, characterized in that: The hinge mechanism is the hinge mechanism described in any one of claims 1-12.

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