Multi-movable-joint hinge with stopping function and refrigerator

Abstract

The utility model discloses a multi-movable-joint hinge with a stopping function, which comprises a cabinet body fixing seat, a door body fixing seat, a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, the two ends of the second connecting piece are rotationally connected with the first connecting piece and the door body fixing base respectively, the two ends of the third connecting piece are rotationally connected with the first connecting piece and the door body fixing base respectively, and the two ends of the fourth connecting piece are rotationally connected with the cabinet body fixing base and the third connecting piece respectively. The multi-movable-joint hinge with the stopping function further comprises a stopping piece, the stopping piece is arranged on the first connecting piece, and the stopping piece can abut against the third connecting piece so that the opening angle of the multi-movable-joint hinge can be limited. The opening angle of the multi-movable-joint hinge can be limited.

Description

Technical Field

[0001] The utility model relates to a hinge, in particular to a multi-joint hinge with a stop function and a refrigerator. Background Art

[0002] The door and cabinet of a freezer are usually connected by a multi-joint hinge. The multi-joint hinge usually includes a cabinet fixing seat, a door fixing seat and a transmission assembly connecting the cabinet fixing seat and the door fixing seat. The transmission assembly usually includes a plurality of joint levers connected to each other in a scissor-like manner. When the multi-joint hinge of the prior art is in a fully open state, the angle between the door fixing seat and the cabinet fixing seat is usually an obtuse angle. For example, a damping hinge disclosed in Chinese utility model patent application with publication number CN117365212A has an obtuse angle of 115° when the damping hinge is in a fully open state. However, in actual use, there may be a situation where the cabinet is placed in a relatively small space. If the opening of the door fixing seat is too large, it is easy to collide with external objects, causing damage to the door. Therefore, it is necessary to provide a multi-joint hinge with a stop function. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a multi-joint hinge with a stop function, which can limit the opening angle of the multi-joint hinge.

[0004] One of the purposes of this utility model is achieved by adopting the following technical solution 1:

[0005] A multi-joint hinge with a stop function includes a cabinet fixing seat, a door fixing seat, a first connecting member, a second connecting member, a third connecting member and a fourth connecting member. The two ends of the first connecting member are respectively rotatably connected to the cabinet fixing seat and the second connecting member, the two ends of the second connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, the two ends of the third connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, and the two ends of the fourth connecting member are respectively rotatably connected to the cabinet fixing seat and the third connecting member. The multi-joint hinge with a stop function also includes a stop member, which is installed on the first connecting member. The stop member can be offset against the third connecting member to limit the opening angle of the multi-joint hinge.

[0006] Furthermore, the first connecting member is provided with a socket, the socket is located between the second connecting member and the third connecting member, and the stop member is a pin, and the stop member is plugged into the socket.

[0007] Furthermore, the stop member is interference fit with the socket.

[0008] Furthermore, the first connecting member includes a bottom and two side portions formed by vertical extensions from both sides of the bottom, the side portions are provided with the sockets, and the stop member passes through the sockets of the two side portions; one end of the two side portions is rotatably connected to the cabinet body fixing seat; one end of the second connecting member away from the door body fixing seat and one end of the third connecting member away from the door body fixing seat are both rotatably connected to the two side portions.

[0009] Furthermore, when the stop member abuts against the third connecting member, the opening angle of the multi-joint hinge is 90°.

[0010] The present invention also provides another multi-joint hinge with a stop function, including a cabinet fixing seat, a door fixing seat, a first connecting member, a second connecting member, a third connecting member and a fourth connecting member. The two ends of the first connecting member are respectively rotatably connected to the cabinet fixing seat and the second connecting member, the two ends of the second connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, the two ends of the third connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, and the two ends of the fourth connecting member are respectively rotatably connected to the cabinet fixing seat and the third connecting member. The multi-joint hinge with a stop function also includes a stop member, which is installed on the door fixing seat. The stop member can be offset against the second connecting member to limit the opening angle of the multi-joint hinge.

[0011] Furthermore, the door body fixing seat is provided with a socket, the socket is located between the second connecting member and the third connecting member, the stop member is a pin, and the stop member is plugged into the socket.

[0012] Furthermore, the stop member is interference fit with the socket.

[0013] Furthermore, the door body fixing seat includes a base plate and a pair of side plates extending vertically from both sides of the base plate, the side plates are provided with the sockets, and the stop members are passed through the sockets of the two side plates; the end of the second connecting member away from the cabinet body fixing seat and the end of the third connecting member away from the cabinet body fixing seat are both rotatably connected to the two side plates.

[0014] Furthermore, when the stop member abuts against the second connecting member, the opening angle of the multi-joint hinge is 90°.

[0015] One of the purposes of this utility model is achieved by adopting the following technical solution 2:

[0016] A refrigerator comprises the above-mentioned multi-joint hinge with a stop function.

[0017] Compared with the existing technology, the multi-joint hinge with a stop function of the present invention has the following advantages:

[0018] During the opening process, the multi-joint hinge with a stop function can limit the opening angle of the multi-joint hinge through the cooperation of the stop member and the second connecting member or the third connecting member, thereby preventing the door body fixing seat from opening too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a multi-joint hinge with a stop function according to the first embodiment of the present invention;

[0020] Figure 2 for Figure 1 a rear view of the illustrated multi-joint hinge;

[0021] Figure 3 This is a structural diagram of a cabinet fixing seat in a multi-joint hinge according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic structural diagram of a door body fixing seat in a multi-joint hinge according to a first embodiment of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the first connecting member in the multi-joint hinge of the first embodiment of the present utility model;

[0024] Figure 6 This is a schematic structural diagram of the second connecting member in the multi-joint hinge according to an embodiment of the present utility model;

[0025] Figure 7 This is a schematic structural diagram of the third connecting member in the multi-joint hinge according to an embodiment of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of the fourth connecting member in the multi-joint hinge according to an embodiment of the present utility model;

[0027] Figure 9 This is a structural diagram of a multi-joint hinge stop member according to an embodiment of the present utility model;

[0028] Figure 10 for Figure 1 Bottom view of

[0029] Figure 11 for Figure 10 Sectional view along line AA;

[0030] Figure 12 This is a structural diagram of a multi-joint hinge with a stop function according to a second embodiment of the present invention;

[0031] Figure 13 for Figure 1 A front view of the illustrated multi-joint hinge;

[0032] Figure 14 This is a schematic structural diagram of a door body fixing seat in a multi-joint hinge according to a second embodiment of the present invention;

[0033] Figure 15 This is a schematic structural diagram of the first connecting member in the multi-joint hinge of the second embodiment of the present utility model;

[0034] Figure 16 for Figure 12 A top view of

[0035] Figure 17 for Figure 16 Cross-sectional view along line BB;

[0036] In the figure: 100, 200, multi-joint hinge; 10, cabinet fixing base; 11, bottom side; 13, extension side; 131, first through hole; 132, second through hole; 15, side stop; 16, receiving groove; 17, first through shaft; 18, second through shaft; 20, door fixing base; 21, bottom plate; 23, side plate; 231, first holding hole; 232, second holding hole; 234, 326, socket; 25, first holding shaft; 26, second holding shaft; 30, first connecting member; 31, bottom; 32, side; 321, first fixing hole; 322, second fixing hole; 323. Third fixing hole; 34. First fixed axis; 35. Second fixed axis; 40. Second connecting member; 41. Side panel; 411. First connecting hole; 412. Second connecting hole; 42. Connecting plate; 50. Third connecting member; 51. Connecting portion; 53. Side wall; 531. First holding hole; 532. Second holding hole; 533. Third holding hole; 56. Holding axis; 60. Fourth connecting member; 61. Main body; 62. First end; 621. First hole; 63. Second end; 631. Second hole; 70. Stop member; 80. Elastic component; 90. Speed ​​reduction component. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] See Figure 1 The first embodiment of the present invention provides a multi-joint hinge 100 with a stop function, comprising a cabinet fixing seat 10, a door fixing seat 20, a first connecting member 30, a second connecting member 40, a third connecting member 50, a fourth connecting member 60, and a stop member 70. The two ends of the first connecting member 30 are rotatably connected to the cabinet fixing seat 10 and the second connecting member 40 respectively; the two ends of the second connecting member 40 are rotatably connected to the first connecting member 30 and the door fixing seat 20 respectively; the two ends of the third connecting member 50 are rotatably connected to the first connecting member 30 and the door fixing seat 20 respectively; and the two ends of the fourth connecting member 60 are rotatably connected to the cabinet fixing seat 10 and the third connecting member 50 respectively. The stop member 70 is mounted on the first connecting member 30 and can abut against the third connecting member 50 to limit the opening angle of the multi-joint hinge 100.

[0041] The cabinet fixing seat 10 is used to fix to the cabinet (not shown). In this embodiment, the multi-joint hinge 100 is applied to the refrigerator, and the cabinet fixing seat 10 is fixed to the refrigerator cabinet. Figure 2 and Figure 3The cross-section of the cabinet fixing base 10 is roughly U-shaped, which can increase the structural strength while accommodating other components, reducing the volume of the multi-joint hinge 100 and protecting other components. The cabinet fixing base 10 includes a bottom side 11, a pair of extension sides 13 extending vertically from both sides of the bottom side 11, and a side stop 15 connecting the bottom side 11 and the pair of extension sides 13. A receiving groove 16 for accommodating other components is formed between the bottom side 11, the extension sides 13 and the side stop 15. A first through hole 131 and a second through hole 132 are spaced apart on the extension side 13. The first through hole 131 is fixed by a first through shaft 17, and the second through hole 132 is fixed by a second through shaft 18.

[0042] The door body fixing seat 20 is used to fix with the door body (not shown). In this embodiment, the multi-joint hinge 100 is applied to the refrigerator, and the door body fixing seat 20 is fixed to the refrigerator door. Figure 4 The cross-section of the door body fixing seat 20 is roughly U-shaped, which can increase the structural strength while accommodating other components, reducing the volume of the multi-joint hinge 100 and protecting other components. The door body fixing seat 20 includes a bottom plate 21 and a pair of side plates 23 extending vertically from both sides of the bottom plate 21. The side plates 23 are provided with first retaining holes 231 and second retaining holes 232 at intervals. The pair of first retaining holes 231 on the pair of side plates 23 are fixed by passing through the first retaining shaft 25, and the pair of second retaining holes 232 on the pair of side plates 23 are fixed by passing through the second retaining shaft 26.

[0043] Please refer to Figure 5 The first connector 30 has a roughly U-shaped cross-section. While increasing structural strength, the interior of the first connector 30 can accommodate other components, reducing the size of the hinge and protecting other components. The first connector 30 includes a bottom 31 and two side portions 32 extending perpendicularly from either side of the bottom 31. Each side portion 32 is provided with a first fixing hole 321, a second fixing hole 322, a third fixing hole 323 located between the first and second fixing holes 321, and a socket 326 located between the third and second fixing holes 323, 322. One end of the first connector 30 having the first fixing hole 321 is received by the receiving slot 16 of the cabinet fixing base 10. The first fixing hole 321 is penetrated and fixed by the first through-shaft 17, thereby enabling one end of the first connector 30 to be rotatably connected to the cabinet fixing base 10. The second fixing hole 322 is penetrated and fixed by the first fixing shaft 34, and the third fixing hole 323 is penetrated and fixed by the second fixing shaft 35.

[0044] Please refer to Figure 6The second connecting member 40 includes a pair of spaced-apart side panels 41 and a connecting plate 42 connecting the side panels 41. The side panels 41 are provided with first connecting holes 411 and second connecting holes 412 at intervals. The first fixing shaft 34 penetrates and secures the pair of first connecting holes 411 on the side panels 41, allowing one end of the second connecting member 40 to be rotatably connected to the first connecting member 30. The first retaining shaft 25 penetrates and secures the pair of second connecting holes 412 on the side panels 41, allowing the other end of the second connecting member 40 to be rotatably connected to the door body fixing base 20.

[0045] Please refer to Figure 7 The third connecting member 50 includes a pair of opposing side walls 53 and a connecting portion 51 connecting the side walls 53. The connecting portion 51 may be a rod and / or plate that securely connects the side walls 53. The side walls 53 are spaced apart and are provided with a first retaining hole 531, a second retaining hole 532, and a third retaining hole 533 located between the first retaining hole 531 and the second retaining hole 532. The first retaining holes 531 on the side walls 53 are penetrated and secured by the second retaining shaft 26, allowing one end of the third connecting member 50 to be received in the door body fixing seat 20 and rotatably connected thereto. The second retaining shaft 35 penetrates and secures the second retaining hole 532 on the side walls 53, allowing the other end of the third connecting member 50 to be received in the first connecting member 30 and rotatably connected thereto. The third retaining holes 533 on the side walls 53 are securely penetrated by the retaining shaft 56.

[0046] Please refer to Figure 8 The fourth connecting member 60 is generally plate-shaped and includes a main body 61 and a first end 62 and a second end 63, respectively located at opposite ends of the main body 61. The first end 62 has a first hole 621, which is penetrated and fixed by the second through-shaft 18, so that the first end 62 of the fourth connecting member 60 is received in the cabinet fixing base 10 and is rotatably connected to the cabinet fixing base 10. The second end 63 has a second hole 631, which is penetrated and fixed by the clamping shaft 56, so that the second end 63 of the fourth connecting member 60 is received in the third connecting member 50 and is rotatably connected to the third connecting member 50.

[0047] Please refer to Figures 9 to 11 In this embodiment, the stopper 70 is a pin, and the stopper 70 is inserted into the socket 326. In this embodiment, the stopper 70 passes through the sockets 326 of the two side portions 32, and the stopper 70 and the socket 326 have an interference fit to prevent the stopper 70 from being separated from the socket 326.

[0048] When the multi-joint hinge 100 is used, the cabinet fixing base 10 is fixedly connected to the cabinet, and the door fixing base 20 is fixedly connected to the door. When the multi-joint hinge 100 is in a closed state, the door fixing base 20 is arranged parallel to the cabinet fixing base 10, that is, the angle between the door fixing base 20 and the cabinet fixing base 10 is 0°, and the first connecting member 30, the second connecting member 40, the third connecting member 50, and the fourth connecting member 60 are accommodated therebetween.

[0049] When the multi-joint hinge 100 is in a closed state, the stop member 70 and the third connecting member 50 are separated, allowing the multi-joint hinge 100 to open under the action of an external force. During the opening process of the multi-joint hinge 100, the third connecting member 50 rotates toward the stop member 70 until the pair of side walls 53 and the connecting portion 51 of the third connecting member 50 abut against the stop member 70, thereby limiting the maximum opening of the door body fixing base 20 and preventing the door body fixing base 20 from opening too wide. In this embodiment, when the stop member 70 and the third connecting member 50 abut against each other, the angle between the door body fixing base 20 and the cabinet fixing base 10 is 90°, that is, the maximum opening angle of the multi-joint hinge 100 is 90°, making it easier for users to take things in and out.

[0050] It can be understood that the multi-joint hinge 100 may also include other structures, for example, an elastic component 80 installed in the first connecting member 30 for applying a closing force to the door body so that the door body closes automatically, and a damper 90 installed in the receiving groove 16 of the cabinet fixing seat 10 for slowing down the speed of automatic closing of the multi-joint hinge 100, etc. For the sake of space, they will not be repeated here.

[0051] It is understandable that in other embodiments, the stop member 70 may also only abut against the side wall 53 or the connecting portion 51 of the third connecting member 50 to limit the maximum opening of the door body fixing seat 20.

[0052] During the opening process, the multi-joint hinge 100 with a stop function limits the opening angle of the multi-joint hinge 100 by cooperating with the stop member 70 of the first connecting member 30 and the third connecting member 50, thereby preventing the door fixing base 20 from opening too wide. In addition, compared to the method of installing the stop member 70 within the cabinet fixing base 10, installing the stop member 70 on the first connecting member 30 provides more space for the installation of mechanisms such as the deceleration damper 90 within the cabinet fixing base 70.

[0053] Please also see Figure 12 and Figure 13The second embodiment of the present invention provides a multi-joint hinge 200 with a stop function, the structure of which is substantially the same as that of the multi-joint hinge 100 with a stop function of the first embodiment, and both include a cabinet fixing base 10, a door fixing base 20, a first connecting member 30, a second connecting member 40, a third connecting member 50, a fourth connecting member 60, and a stop member 70. The two ends of the first connecting member 30 are rotatably connected to the cabinet fixing base 10 and the second connecting member 40, respectively; the two ends of the second connecting member 40 are rotatably connected to the first connecting member 30 and the door fixing base 20, respectively; the two ends of the third connecting member 50 are rotatably connected to the first connecting member 30 and the door fixing base 20, respectively; and the two ends of the fourth connecting member 60 are rotatably connected to the cabinet fixing base 10 and the third connecting member 50, respectively. The difference lies in the installation position of the stop member 70. In this embodiment, the stop member 70 is installed on the door body fixing seat 20. The stop member 70 can be abutted against the second connecting member 40 to limit the opening angle of the multi-joint hinge 200.

[0054] The cabinet fixing base 10 is used to fix to the cabinet (not shown). In this embodiment, the multi-joint hinge 200 is applied to the refrigerator, and the cabinet fixing base 10 is fixed to the refrigerator cabinet. The structure of the cabinet fixing base 10 of this embodiment is the same as that of the cabinet fixing base 10 of the first embodiment. Please refer to the cabinet fixing base 10 of the first embodiment. Figure 14 The cross-section of the cabinet fixing base 10 is roughly U-shaped, which can increase the structural strength while accommodating other components, reducing the volume of the multi-joint hinge 200 and protecting other components. The cabinet fixing base 10 includes a bottom side 11, a pair of extension sides 13 extending vertically from both sides of the bottom side 11, and a side stop 15 connecting the bottom side 11 and the pair of extension sides 13. A receiving groove 16 for accommodating other components is formed between the bottom side 11, the extension sides 13 and the side stop 15. A first through hole 131 and a second through hole 132 are spaced apart on the extension side 13. The first through hole 131 is fixed by a first through shaft 17, and the second through hole 132 is fixed by a second through shaft 18.

[0055] The door body fixing seat 20 is used to fix with the door body. In this embodiment, the multi-joint hinge 200 is applied to the refrigerator, and the door body fixing seat 20 is fixed to the refrigerator door. Figure 3The cross-section of the door body fixing seat 20 is roughly U-shaped, which can increase the structural strength while accommodating other components, reducing the volume of the multi-joint hinge 200 and protecting other components. The door body fixing seat 20 includes a bottom plate 21 and a pair of side plates 23 extending vertically from both sides of the bottom plate 21. The side plates 23 are provided with a first retaining hole 231, a second retaining hole 232 and a socket 234 located between the second retaining hole 232 and the first retaining hole 231 at intervals. The pair of first retaining holes 231 on the pair of side plates 23 are fixed by passing through the first retaining shaft 25, and the pair of second retaining holes 232 on the pair of side plates 23 are fixed by passing through the second retaining shaft 26.

[0056] Please refer to Figure 15 The cross-section of the first connecting member 30 is roughly U-shaped. While increasing the structural strength, the interior of the first connecting member 30 can accommodate other components, reduce the volume of the hinge and protect other components. The first connecting member 30 includes a bottom 31 and two side portions 32 formed by vertically extending from both sides of the bottom 31. Each side portion 32 is provided with a first fixing hole 321, a second fixing hole 322 and a third fixing hole 323 located between the first fixing hole 321 and the second fixing hole 322. The first connecting member 30 is provided with a first fixing hole 321, one end of which is received by the receiving groove 16 of the cabinet fixing seat 10, and the first fixing hole 321 is fixed by the first through shaft 17, so that one end of the first connecting member 30 is rotatably connected to the cabinet fixing seat 10; the second fixing hole 322 is fixed by the first fixing shaft 34; and the third fixing hole 323 is fixed by the second fixing shaft 35.

[0057] The second connecting member 40 of this embodiment has the same structure as the second connecting member 40 of the first embodiment. Figure 6 In this embodiment, the second connecting member 40 includes a pair of spaced-apart side panels 41 and a connecting plate 42 connecting the pair of side panels 41. The side panels 41 are provided with first connecting holes 411 and second connecting holes 412 spaced apart. The first fixing shaft 34 penetrates and secures the pair of first connecting holes 411 on the pair of side panels 41, allowing one end of the second connecting member 40 to be rotatably connected to the first connecting member 30. The first retaining shaft 25 penetrates and secures the pair of second connecting holes 412 on the pair of side panels 41, allowing the other end of the second connecting member 40 to be rotatably connected to the door body fixing seat 20.

[0058] The third connecting member 50 of this embodiment has the same structure as the third connecting member 50 of the first embodiment. Figure 7The third connecting member 50 of this embodiment includes a pair of opposing side walls 53 and a connecting portion 51 connecting the side walls 53. The connecting portion 51 may be a rod and / or plate that securely connects the side walls 53. The side walls 53 are spaced apart and are provided with a first retaining hole 531, a second retaining hole 532, and a third retaining hole 533 located between the first retaining hole 531 and the second retaining hole 532. The first retaining holes 531 on the side walls 53 are penetrated and secured by the second retaining shaft 26, allowing one end of the third connecting member 50 to be received in the door body fixing seat 20 and rotatably connected thereto. The second retaining shaft 35 penetrates and secures the second retaining hole 532 on the side walls 53, allowing the other end of the third connecting member 50 to be received in the first connecting member 30 and rotatably connected thereto. The third retaining holes 533 on the side walls 53 are penetrated and secured by the retaining shaft 56.

[0059] The fourth connecting member 60 of this embodiment has the same structure as the fourth connecting member 60 of the first embodiment. Figure 8 The fourth connecting member 60 is generally plate-shaped and includes a main body 61 and a first end 62 and a second end 63, respectively located at opposite ends of the main body 61. The first end 62 has a first hole 621, which is penetrated and fixed by the second through-shaft 18, so that the first end 62 of the fourth connecting member 60 is received in the cabinet fixing base 10 and is rotatably connected to the cabinet fixing base 10. The second end 63 has a second hole 631, which is penetrated and fixed by the clamping shaft 56, so that the second end 63 of the fourth connecting member 60 is received in the third connecting member 50 and is rotatably connected to the third connecting member 50.

[0060] In this embodiment, the stopper 70 is a pin and is inserted into the socket 234. In this embodiment, the stopper 70 passes through the sockets 234 of the two side plates 23 and has an interference fit with the sockets 234 to prevent the stopper 70 from being separated from the sockets 234.

[0061] Please also see Figure 16 and Figure 17 When the multi-joint hinge 200 is used, the cabinet fixing base 10 is fixedly connected to the cabinet, and the door fixing base 20 is fixedly connected to the door. When the multi-joint hinge 200 is in a closed state, the door fixing base 20 is arranged parallel to the cabinet fixing base 10, and the first connecting member 30, the second connecting member 40, the third connecting member 50, and the fourth connecting member 60 are accommodated therebetween.

[0062] When the multi-joint hinge 200 is in a closed state, the stop member 70 and the second connecting member 40 are separated, allowing the multi-joint hinge 100 to open under the action of an external force. During the opening process of the multi-joint hinge 100, the second connecting member 40 rotates toward the stop member 70 until the pair of side panels 41 of the second connecting member 40 abut against the stop member 70, thereby limiting the maximum opening of the door body fixing base 20 and preventing the door body fixing base 20 from opening too wide. In this embodiment, when the stop member 70 abuts against the second connecting member 40, the angle between the door body fixing base 20 and the cabinet fixing base 10 is 90°, that is, the maximum opening angle of the multi-joint hinge 200 is 90 degrees, making it easier for users to take things in and out.

[0063] It can be understood that the multi-joint hinge 200 may also include other structures, for example, an elastic component 80 installed in the first connecting member 30 for applying a closing force to the door body so that the door body closes automatically, and a damper 90 installed in the receiving groove 16 of the cabinet fixing seat 10 for slowing down the speed of automatic closing of the multi-joint hinge 200, etc. For the sake of space, they will not be repeated here.

[0064] During the opening process, the multi-joint hinge 200 with a stop function limits the opening angle of the multi-joint hinge 200 by cooperating with the stop member 70 provided on the door body fixing base 20 and the second connecting member 40, thereby preventing the door body fixing base 20 from opening too wide. In addition, compared to the method of providing the stop member 70 on the cabinet fixing base 10, providing the stop member 70 on the door body fixing base 20 provides more space for the installation of mechanisms such as the deceleration damper 90 within the cabinet fixing base 10.

[0065] The present invention further includes a refrigerator, which includes the multi-joint hinges 100 and 200 described above.

[0066] The above embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the spirit of the present invention. These modifications and improvements are equivalent to those made to the above embodiments based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. A multi-joint hinge with a stop function, comprising a cabinet fixing seat, a door fixing seat, a first connecting member, a second connecting member, a third connecting member, and a fourth connecting member, wherein the two ends of the first connecting member are respectively rotatably connected to the cabinet fixing seat and the second connecting member, the two ends of the second connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, the two ends of the third connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, and the two ends of the fourth connecting member are respectively rotatably connected to the cabinet fixing seat and the third connecting member, characterized in that: The multi-joint hinge with a stop function further includes a stop member, which is mounted on the first connecting member. The stop member can abut against the third connecting member to limit the opening angle of the multi-joint hinge.

2. The multi-joint hinge with a stop function according to claim 1, characterized in that: The first connecting member is provided with a socket, and the socket is located between the second connecting member and the third connecting member. The stop member is a pin, and the stop member is plugged into the socket.

3. The multi-joint hinge with a stop function according to claim 2, characterized in that: The stopper is interference-fitted with the socket.

4. The multi-joint hinge with a stop function according to claim 2, characterized in that: The first connecting member includes a bottom and two side portions formed by vertical extensions from both sides of the bottom, the side portions are provided with the sockets, and the stop members pass through the sockets of the two side portions; one end of the two side portions is rotatably connected to the cabinet body fixing seat; one end of the second connecting member away from the door body fixing seat and one end of the third connecting member away from the door body fixing seat are both rotatably connected to the two side portions.

5. The multi-joint hinge with a stop function according to claim 1, characterized in that: When the stop member abuts against the third connecting member, the opening angle of the multi-joint hinge is 90°.

6. A multi-joint hinge with a stop function, comprising a cabinet fixing seat, a door fixing seat, a first connecting member, a second connecting member, a third connecting member, and a fourth connecting member, wherein two ends of the first connecting member are respectively rotatably connected to the cabinet fixing seat and the second connecting member, two ends of the second connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, two ends of the third connecting member are respectively rotatably connected to the first connecting member and the door fixing seat, and two ends of the fourth connecting member are respectively rotatably connected to the cabinet fixing seat and the third connecting member, characterized in that: The multi-joint hinge with a stop function further includes a stop member, which is mounted on the door body fixing seat. The stop member can abut against the second connecting member to limit the opening angle of the multi-joint hinge.

7. The multi-joint hinge with a stop function according to claim 6, characterized in that: The door body fixing seat is provided with a socket, and the socket is located between the second connecting member and the third connecting member. The stop member is a pin, and the stop member is plugged into the socket.

8. The multi-joint hinge with a stop function according to claim 7, characterized in that: The stopper is interference-fitted with the socket.

9. The multi-joint hinge with a stop function according to claim 7, characterized in that: The door body fixing seat includes a bottom plate and a pair of side plates extending vertically from both sides of the bottom plate, the side plates are provided with the sockets, and the stop members are passed through the sockets of the two side plates; one end of the second connecting member away from the cabinet body fixing seat and one end of the third connecting member away from the cabinet body fixing seat are both rotatably connected to the two side plates.

10. The multi-joint hinge with a stop function according to claim 6, characterized in that: When the stop member abuts against the second connecting member, the opening angle of the multi-joint hinge is 90°.

11. A refrigerator, characterized in that: It comprises a multi-joint hinge with a stop function as described in any one of claims 1 to 10.

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