Hinge and cabinet

Abstract

The present invention provides a hinge and a cabinet, comprising a cabinet mounting member, a cabinet door mounting member, and a connecting member; the cabinet mounting member is mounted on the inner side wall of the cabinet, the cabinet door mounting member is mounted on the cabinet door, and the cabinet door mounting member rotates in cooperation with the cabinet mounting member through the connecting member to open or close the cabinet door; one end of the connecting member can rotate around the cabinet mounting member through a first rotating shaft, and the other end of the connecting member is rotatably connected to one end of the cabinet door mounting member through a second rotating shaft, the first rotating shaft and the second rotating shaft rotate in cooperation, and the first rotating shaft and the second rotating shaft are not coaxial. The first rotating shaft and the second rotating shaft of the hinge provided by the present invention are not coaxial, and the hinge of the present invention is a multi-axis structure with a simple structure. Even if the axis of the rotating shaft of the hinge above the cabinet and the axis of the rotating shaft of the hinge below the cabinet are not on the same axis due to processing errors, installation can be achieved, and installation is simple, and there will be no installation difficulties due to processing errors not being on the same axis.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication power distribution equipment, and more specifically, relates to a hinge and a cabinet. Background Art

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solid objects and allow them to rotate relative to each other. Hinges can be made of movable components or foldable materials. Hinges are primarily installed on doors and windows, while hinges are more commonly found on cabinets.

[0003] Conventional hinges are single-axis hinges, which have only one axis and are usually fixed on the waterproof edge of the cabinet front side and the cabinet door. However, when the cabinet door is too long or there is an error in the cabinet door processing, the cabinet door is prone to deformation and curvature. If multiple single-axis hinges are assembled to the waterproof edge of the cabinet front side and the cabinet door, then the axis of the single-axis hinge above the cabinet door and the axis of the single-axis hinge below the cabinet door will be difficult to align on the same axis, resulting in difficulty in installing the cabinet hinge. Summary of the Invention

[0004] The purpose of the present invention is to provide a hinge and a cabinet to solve the technical problem in the prior art that the axis of the single-axis hinge above the cabinet door and the axis of the single-axis hinge below the cabinet door are difficult to align with the same axis, resulting in difficulty in installing the cabinet hinge.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: providing a hinge including a cabinet mounting piece, a cabinet door mounting piece and a connecting piece;

[0006] The cabinet mounting member is mounted on the inner side wall of the cabinet, and the cabinet door mounting member is mounted on the cabinet door. The cabinet door mounting member rotates in conjunction with the cabinet mounting member via a connecting member to open or close the cabinet door.

[0007] One end of the connecting member can rotate around the cabinet mounting member through a first rotating shaft, and the other end of the connecting member is rotatably connected to one end of the cabinet door mounting member through a second rotating shaft. The first rotating shaft and the second rotating shaft rotate in coordination, and the first rotating shaft and the second rotating shaft are not coaxial.

[0008] Further, the connecting member includes a first connecting member, and the first connecting member includes a first branch connecting member and a second branch connecting member;

[0009] One end of the first branch connecting member can rotate around the upper end of the cabinet mounting member through the first rotating shaft, and one end of the second branch connecting member can rotate around the lower end of the cabinet mounting member through the third rotating shaft, and the first rotating shaft and the third rotating shaft are coaxial;

[0010] The other end of the first branch connecting member is rotatably connected to the upper end of the cabinet door mounting member via the second rotating shaft, and the other end of the second branch connecting member is rotatably connected to the lower end of the cabinet door mounting member via the fourth rotating shaft. The third rotating shaft rotates in conjunction with the fourth rotating shaft, and the second rotating shaft and the fourth rotating shaft are coaxial.

[0011] The distance from the first rotation axis to the second rotation axis is the same as the distance from the third rotation axis to the fourth rotation axis.

[0012] Furthermore, the connecting member includes a second connecting member, and the second connecting member includes a third branch connecting member and a fourth branch connecting member;

[0013] One end of the third branch connecting member can rotate around the upper end of the cabinet mounting member through the first rotating shaft, and one end of the fourth branch connecting member can rotate around the lower end of the cabinet mounting member through the third rotating shaft, and the first rotating shaft and the third rotating shaft are coaxial;

[0014] The other end of the third branch connecting member is rotatably connected to the upper end of the cabinet door mounting member via the second rotating shaft, and the other end of the fourth branch connecting member is rotatably connected to the lower end of the cabinet door mounting member via a fifth rotating shaft. The third rotating shaft rotates in conjunction with the fifth rotating shaft, and the second rotating shaft and the fifth rotating shaft are not coaxial.

[0015] A distance from the first rotation axis to the second rotation axis is smaller than a distance from the third rotation axis to the fifth rotation axis.

[0016] Furthermore, the cabinet door mounting member includes a cabinet door fixing block, a second rotating shaft mounting block and a fifth rotating shaft mounting block;

[0017] The cabinet door fixing block is fixedly mounted on the cabinet door, the second rotating shaft mounting block is a mounting block extending outward from one end of the upper side wall of the cabinet door fixing block, and the fifth rotating shaft mounting block is a mounting block extending outward from the other end of the lower side wall of the cabinet door fixing block, wherein one end of the upper side wall of the cabinet door fixing block is an end close to the cabinet mounting piece, and the other end of the lower side wall of the cabinet door fixing block is an end away from the cabinet mounting piece;

[0018] The second rotating shaft is arranged on the second rotating shaft mounting block, and the fifth rotating shaft is arranged on the fifth rotating shaft mounting block.

[0019] Furthermore, the cabinet mounting member includes a cabinet mounting block and a first rotating shaft mounting block and a third rotating shaft mounting block;

[0020] The cabinet mounting block is fixedly mounted on the cabinet, the first rotating shaft mounting block is a mounting block extending outward from the upper side wall of the cabinet mounting block, and the third rotating shaft mounting block is a mounting block extending outward from the lower side wall of the cabinet mounting block;

[0021] The first rotating shaft is arranged on the first rotating shaft mounting block, and the third rotating shaft is arranged on the third rotating shaft mounting block.

[0022] Further, the first rotating shaft mounting block includes an extension portion and a mounting portion;

[0023] The extension portion and the cabinet mounting block are integrally formed, and a right angle is formed between the extension portion and the cabinet mounting block. The mounting portion is a component extending forward along one side of the extension portion. An installation gap for the waterproof edge of the cabinet is formed between the mounting portion and the extension portion, and the waterproof edge of the cabinet is arranged in the installation gap.

[0024] Furthermore, the hinge further comprises a protruding block;

[0025] The protruding block is arranged on the fourth branch connecting piece, the protruding block abuts against the waterproof edge of the cabinet, and the protruding block is used to limit the rotation range of the third rotating shaft.

[0026] A cabinet comprises the hinge.

[0027] The beneficial effect of the hinge provided by the present invention is that compared with the prior art, one end of the connecting part of the hinge of the present invention can rotate around the cabinet mounting part through a first rotating shaft, and the other end of the connecting part is rotatably connected to one end of the cabinet door mounting part through a second rotating shaft. The first rotating shaft and the second rotating shaft cooperate to rotate to open or close the cabinet door. The hinge of the present invention includes a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are not coaxial. It can be seen that the axis center of the first rotating shaft is different from the axis center of the second rotating shaft. The hinge of the present invention is a multi-axis structure with a simple structure. Even if the axis center of the rotating shaft of the hinge above the cabinet body and the axis center of the rotating shaft of the hinge below the cabinet body are not on the same axis line due to processing errors, installation can be achieved. The installation is simple and there will be no installation difficulties due to processing errors not being on the same axis line. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1A schematic diagram of the three-dimensional structure of a hinge provided in one embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the three-dimensional structure of a hinge provided in another embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the three-dimensional structure of a hinge and a cabinet provided in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the hinge state of a cabinet door in an open state provided by an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the hinge state of a cabinet door when it is closed according to an embodiment of the present invention.

[0034] Among them, the reference numerals in the figures are:

[0035] 1. Cabinet mounting member; 11. Cabinet mounting block; 12. First shaft mounting block; 121. Extension portion; 122. Mounting portion; 13. Third shaft mounting block;

[0036] 2. Cabinet door mounting piece; 21. Cabinet door fixing block; 22. Second shaft mounting block; 23. Fifth shaft mounting block; 3. Cabinet body; 4. Cabinet door;

[0037] 5. Connecting piece; 51. Connecting piece of the first branch; 52. Connecting piece of the second branch; 53. Connecting piece of the third branch; 54. Connecting piece of the fourth branch;

[0038] 61. First rotating shaft; 62. Second rotating shaft; 63. Third rotating shaft; 64. Fourth rotating shaft; 65. Fifth rotating shaft; 7. Raised block. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0043] Please also refer to Figures 1 to 5 The present invention provides a hinge and a cabinet, and the cabinet includes a hinge. The hinge provided by the present invention is now described. The hinge includes a cabinet mounting member 1, a cabinet door mounting member 2 and a connecting member 5; the cabinet mounting member 1 is installed on the inner wall of the cabinet 3, and the cabinet door mounting member 2 is installed on the cabinet door 4. The cabinet door mounting member 2 rotates in coordination with the cabinet mounting member 1 through the connecting member 5 to open or close the cabinet door 4; one end of the connecting member 5 can rotate around the cabinet mounting member 1 through a first rotating shaft 61, and the other end of the connecting member 5 is rotatably connected to one end of the cabinet door mounting member 2 through a second rotating shaft 62, the first rotating shaft 61 rotates in coordination with the second rotating shaft 62, and the first rotating shaft 61 and the second rotating shaft 62 are not coaxial.

[0044] For example, the cabinet mounting member 1 is mounted on the inner side wall of the cabinet 3, and the cabinet door mounting member 2 is mounted on the cabinet door 4, so that the distance between the waterproof edge of the cabinet 3 and the cabinet door is narrower, making the cabinet and the cabinet door closer and more secure, thereby making more space available on the front of the cabinet, solving the problem of low space utilization caused by conventional hinges being fixed to the waterproof edge of the front side of the cabinet.

[0045] The hinge provided by the present invention is compared with the prior art. One end of the connecting part of the hinge of the present invention can rotate around the cabinet mounting part through a first rotating shaft, and the other end of the connecting part is rotatably connected to one end of the cabinet door mounting part through a second rotating shaft. The first rotating shaft and the second rotating shaft cooperate to rotate to open or close the cabinet door. The hinge of the present invention includes a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are not coaxial. It can be seen that the axis center of the first rotating shaft is different from the axis center of the second rotating shaft. The hinge of the present invention is a multi-axis structure with a simple structure. Even if the axis center of the rotating shaft of the hinge above the cabinet and the axis center of the rotating shaft of the hinge below the cabinet are not on the same axis line due to processing errors, installation can be achieved. The installation is simple and there will be no installation difficulties due to processing errors not being on the same axis line.

[0046] Further, please also refer to Figure 1 As a specific embodiment of the hinge provided by the present invention, the connecting member 5 includes a first connecting member, which includes a first branch connecting member 51 and a second branch connecting member 52; one end of the first branch connecting member 51 can rotate around the upper end of the cabinet mounting member 1 through the first rotating shaft 61, and one end of the second branch connecting member 52 can rotate around the lower end of the cabinet mounting member 1 through the third rotating shaft 63, and the first rotating shaft 61 and the third rotating shaft 63 are coaxial; the other end of the first branch connecting member 51 is rotatably connected to the upper end of the cabinet door mounting member 2 through the second rotating shaft 62, and the other end of the second branch connecting member 52 is rotatably connected to the lower end of the cabinet door mounting member 2 through the fourth rotating shaft 64, the third rotating shaft 63 cooperates with the fourth rotating shaft 64 to rotate, and the second rotating shaft 62 and the fourth rotating shaft 64 are coaxial; the distance from the first rotating shaft 61 to the second rotating shaft 62 is the same as the distance from the third rotating shaft 63 to the fourth rotating shaft 64.

[0047] It can be understood that the length of the first branch connecting member 51 is equal to that of the second branch connecting member 52 .

[0048] As a variation, a protrusion is provided on the first branch connecting member 51 or the second branch connecting member 52 , the protrusion abuts against the waterproof edge of the cabinet 3 , and the protrusion is used to limit the rotation range of the first rotating shaft 61 and the third rotating shaft 63 .

[0049] The working principle of a specific embodiment of the hinge of the present invention is as follows: during the process of opening the door by the hinge, the first branch connecting member 51 rotates in coordination with the first rotating shaft 61 and the second rotating shaft 62, and at the same time, the second branch connecting member 52 rotates in coordination with the third rotating shaft 63 and the fourth rotating shaft 64, driving the cabinet door to open or close; when the raised block on the first branch connecting member 51 or the second branch connecting member 52 contacts the waterproof edge, the first rotating shaft 61 and the third rotating shaft 63 stop moving. In addition, the second rotating shaft 62 and the fourth rotating shaft 64 also rotate at the same time to correct the cabinet door to a certain opening and closing angle.

[0050] Further, please also refer to Figure 2 As another specific embodiment of the hinge provided by the present invention, the connecting member 5 includes a second connecting member, the second connecting member includes a third branch connecting member 53 and a fourth branch connecting member 54; one end of the third branch connecting member 53 can rotate around the upper end of the cabinet mounting member 1 through the first rotating shaft 61, and one end of the fourth branch connecting member 54 can rotate around the lower end of the cabinet mounting member 1 through the third rotating shaft 63, and the first rotating shaft 61 and the third rotating shaft 63 are coaxial; the other end of the third branch connecting member 53 is rotatably connected to the upper end of the cabinet door mounting member 2 through the second rotating shaft 62, and the other end of the fourth branch connecting member 54 is rotatably connected to the lower end of the cabinet door mounting member 2 through the fifth rotating shaft 65, the third rotating shaft 63 cooperates with the fifth rotating shaft 65 to rotate, and the second rotating shaft 62 and the fifth rotating shaft 65 are not coaxial; the distance from the first rotating shaft 61 to the second rotating shaft 62 is less than the distance from the third rotating shaft 63 to the fifth rotating shaft 65.

[0051] It can be understood that the length of the third branch connecting member 53 is smaller than the length of the fourth branch connecting member 54 .

[0052] As a variation, the second rotating shaft 62 and the fifth rotating shaft 65 are arranged at the diagonal position of the cabinet door mounting member 2, so that the structure of the hinge is more solid. At the same time, the length of the fourth branch connecting member 54 is greater than the length of the third branch connecting member 53, which can fix the cabinet door mounting member 2 at the center position of the cabinet door, making the hinge installed at the center of gravity of the cabinet door more stable.

[0053] Further, please also refer to Figure 2 and Figure 3As a specific embodiment of the hinge provided by the present invention, the cabinet door mounting member 2 includes a cabinet door fixing block 21, a second rotating shaft mounting block 22 and a fifth rotating shaft mounting block 23; the cabinet door fixing block 21 is fixedly installed on the cabinet door 4, the second rotating shaft mounting block 22 is a mounting block extending outward from one end of the upper side wall of the cabinet door fixing block 21, and the fifth rotating shaft mounting block 23 is a mounting block extending outward from the other end of the lower side wall of the cabinet door fixing block 21, wherein one end of the upper side wall of the cabinet door fixing block 21 is an end close to the cabinet body mounting member 1, and the other end of the lower side wall of the cabinet door fixing block 21 is an end away from the cabinet body mounting member 1; the second rotating shaft 62 is arranged on the second rotating shaft mounting block 22, and the fifth rotating shaft 65 is arranged on the fifth rotating shaft mounting block 23.

[0054] For example, the second rotating shaft mounting block 22 and the fifth rotating shaft mounting block 23 are arranged at the diagonal position of the cabinet door fixing block 21, so that the structure of the hinge is more solid, and the cabinet door fixing block 21 is fixed at the center position of the cabinet door, so that the hinge is installed at the center of gravity of the cabinet door more stably.

[0055] Further, please also refer to Figure 2 and Figure 3 As a specific embodiment of the hinge provided by the present invention, the cabinet mounting member 1 includes a cabinet mounting block 11, a first rotating shaft mounting block 12 and a third rotating shaft mounting block 13; the cabinet mounting block 11 is fixedly installed on the cabinet 3, the first rotating shaft mounting block 12 is a mounting block extending outward from the upper side wall of the cabinet mounting block 11, and the third rotating shaft mounting block 13 is a mounting block extending outward from the lower side wall of the cabinet mounting block 11; the first rotating shaft 61 is set on the first rotating shaft mounting block 12, and the third rotating shaft 63 is set on the third rotating shaft mounting block 13.

[0056] As a variation, the first rotating shaft mounting block 12 and the third rotating shaft mounting block 13 have the same shape and structure.

[0057] Further, please also refer to Figure 2 、 Figure 3 and Figure 4 As a specific embodiment of the hinge provided by the present invention, the first rotating shaft mounting block 12 includes an extension portion 121 and a mounting portion 122; the extension portion 121 and the cabinet mounting block 11 are integrally formed, and the extension portion 121 and the cabinet mounting block 11 form a right angle, and the mounting portion 122 is a component extending forward along one side of the extension portion 121, and an installation gap for the waterproof edge of the cabinet 3 is formed between the mounting portion 122 and the extension portion 121, and the waterproof edge of the cabinet 3 is arranged in the installation gap.

[0058] As a variation, the extending portion 121 and the mounting portion 122 are L-shaped.

[0059] For example, the waterproof edge of the cabinet body 3 is arranged in the installation gap, which can effectively make the distance between the waterproof edge of the cabinet body 3 and the cabinet door narrower. In this way, in the placement space of the fixed cabinet, the cabinet with a narrower distance between the waterproof edge of the cabinet body 3 and the cabinet door requires less space to open the cabinet door, thereby better utilizing the space on both sides of the cabinet body and improving space utilization.

[0060] Further, please also refer to Figure 4 As a specific embodiment of the hinge provided by the present invention, the hinge also includes a protrusion block 7; the protrusion block 7 is arranged on the fourth branch connecting member 54, the protrusion block 7 abuts against the waterproof edge of the cabinet 3, and the protrusion block 7 is used to limit the rotation range of the third rotating shaft 63.

[0061] For example, the raised block 7 abuts against the waterproof edge of the cabinet body 3 , which can limit the rotation range of the third rotating shaft 63 and prevent the third rotating shaft 63 from rotating too much, thereby causing disordered door opening.

[0062] As a variation, the hinge of the present invention is made of a sheet metal structure, and the rotating shaft is a round steel structure, which is not specifically limited in the present invention.

[0063] The working principle of another embodiment of the hinge of the present invention is as follows: Figure 4 and Figure 5 During the process of opening the door by the hinge, the third branch connecting member 53 rotates in coordination with the first rotating shaft 61 and the second rotating shaft 62. At the same time, the fourth branch connecting member 54 rotates in coordination with the third rotating shaft 63 and the fifth rotating shaft 65 to drive the cabinet door to open or close. When the raised block 7 on the fourth branch connecting member 54 contacts the waterproof edge, the third rotating shaft 63 stops moving. In addition, the second rotating shaft 62 and the fifth rotating shaft 65 can also rotate at the same time to correct the cabinet door to a certain opening and closing angle.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge, characterized in that: Including cabinet mounting parts, cabinet door mounting parts and connecting parts; The cabinet mounting member is mounted on the inner side wall of the cabinet, and the cabinet door mounting member is mounted on the cabinet door. The cabinet door mounting member rotates in cooperation with the cabinet mounting member via a connecting member to open or close the cabinet door. One end of the connecting member can rotate around the cabinet mounting member via a first rotating shaft, and the other end of the connecting member is rotatably connected to one end of the cabinet door mounting member via a second rotating shaft. The first rotating shaft rotates in cooperation with the second rotating shaft, and the first rotating shaft and the second rotating shaft are not coaxial. The connecting member includes a second connecting member, and the second connecting member includes a third branch connecting member and a fourth branch connecting member; One end of the third branch connecting member can rotate around the upper end of the cabinet mounting member through a first rotating shaft, and one end of the fourth branch connecting member can rotate around the lower end of the cabinet mounting member through a third rotating shaft, and the first rotating shaft and the third rotating shaft are coaxial; The other end of the third branch connecting member is rotatably connected to the upper end of the cabinet door mounting member via a second rotating shaft, and the other end of the fourth branch connecting member is rotatably connected to the lower end of the cabinet door mounting member via a fifth rotating shaft. The third rotating shaft rotates in conjunction with the fifth rotating shaft, and the second rotating shaft and the fifth rotating shaft are not coaxial. The distance from the first rotating axis to the second rotating axis is smaller than the distance from the third rotating axis to the fifth rotating axis; The second rotating shaft and the fifth rotating shaft are arranged at diagonal positions of the cabinet door mounting member, and the length of the fourth branch connecting member is greater than the length of the third branch connecting member.

2. The hinge according to claim 1, wherein: The cabinet door mounting member includes a cabinet door fixing block, a second rotating shaft mounting block and a fifth rotating shaft mounting block; The cabinet door fixing block is fixedly mounted on the cabinet door, the second rotating shaft mounting block is a mounting block extending outward from one end of the upper side wall of the cabinet door fixing block, and the fifth rotating shaft mounting block is a mounting block extending outward from the other end of the lower side wall of the cabinet door fixing block, wherein one end of the upper side wall of the cabinet door fixing block is an end close to the cabinet mounting piece, and the other end of the lower side wall of the cabinet door fixing block is an end away from the cabinet mounting piece; The second rotating shaft is arranged on the second rotating shaft mounting block, and the fifth rotating shaft is arranged on the fifth rotating shaft mounting block.

3. The hinge according to claim 2, wherein: The cabinet mounting member includes a cabinet mounting block, a first rotating shaft mounting block, and a third rotating shaft mounting block; The cabinet mounting block is fixedly mounted on the cabinet, the first rotating shaft mounting block is a mounting block extending outward from the upper side wall of the cabinet mounting block, and the third rotating shaft mounting block is a mounting block extending outward from the lower side wall of the cabinet mounting block; The first rotating shaft is arranged on the first rotating shaft mounting block, and the third rotating shaft is arranged on the third rotating shaft mounting block.

4. The hinge according to claim 3, wherein: The first rotating shaft mounting block includes an extension portion and a mounting portion; The extension portion and the cabinet mounting block are integrally formed, and a right angle is formed between the extension portion and the cabinet mounting block. The mounting portion is a component extending forward along one side of the extension portion. An installation gap for the waterproof edge of the cabinet is formed between the mounting portion and the extension portion, and the waterproof edge of the cabinet is arranged in the installation gap.

5. The hinge according to any one of claims 1 to 4, characterized in that: The hinge further includes a raised block; The protruding block is arranged on the fourth branch connecting piece, the protruding block abuts against the waterproof edge of the cabinet, and the protruding block is used to limit the rotation range of the third rotating shaft.

6. A cabinet, characterized in that: The hinge comprises the hinge according to any one of claims 1 to 5.

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