Top and bottom hinge and top and bottom hinge door for cabinet

Abstract

The utility model discloses a heaven-and-earth hinge and heaven-and-earth hinge door for a cabinet, the heaven-and-earth hinge comprises a cabinet body hinge and a door plate hinge, a connecting rotating shaft penetrates through the door plate hinge, and two ends of the connecting rotating shaft are respectively and rotatably connected with the cabinet body hinge; the cabinet body hinge comprises a cabinet body contact part, a cabinet body bending part and a cabinet body connecting part; a cabinet body magnetic piece is arranged on the cabinet body contact part; a cabinet body rotating shaft hole is formed in the cabinet body contact part; the door plate hinge comprises a door plate contact part and a door plate connecting part; the door plate contact part is provided with a door plate magnetic piece; a door plate damping hole is formed in the door plate contact part; the elastic telescopic end of the cylinder damper penetrates through the door plate damping hole to be in contact with the cabinet body damping groove; the door plate contact part comprises a door plate contact upper section and a door plate contact lower section and is set to comprise a first state and a second state, and in the first state, the cabinet body magnetic piece and the door plate magnetic piece are separated; and in the second state, the cabinet body magnetic piece and the door plate magnetic piece are magnetically attracted. According to the utility model, the operation of the heaven and earth hinged door is more convenient and safer.

Description

Technical Field

[0001] This utility model relates to the field of furniture hardware accessories, and more specifically, to top and bottom hinges for cabinets and top and bottom hinge doors. Background Technology

[0002] A top-and-bottom hinge is a type of hinge used to connect two solid objects, allowing rotation between them. It is commonly used on the doors of wardrobes, cabinets, and other similar structures. A traditional top-and-bottom hinge typically consists of a first component that connects to the cabinet body and a second component that connects to the door. The first and second components are hinged together by a connecting arm. The first component includes a hinge box and a mounting bracket installed within it. The hinge box is used for fixed connection to the cabinet body, while the mounting bracket, embedded in the hinge box, is used for hinge connection with the connecting arm and for mounting elastic mechanisms and dampers. The position of the mounting bracket can be finely adjusted relative to the hinge box, facilitating accurate assembly and connection of the top-and-bottom hinge to the cabinet body and door.

[0003] Chinese Patent Document 1 (Application No.: 2022207673939, Application Date: 2022.04.01) discloses a hydraulically damped concealed hinge structure. See [link to patent document]. Figure 1 As shown, Figure 1 This is a schematic diagram of the overall structure of a hydraulically damped concealed hinge structure provided in Chinese Patent Document 1. In this embodiment, the main support 1' has a groove 2' inside, a connecting piece 3' is movably connected inside the groove 2', a damper 4' is fixedly connected to the surface of the connecting piece 3', and a folding linkage connector 5' is rotatably connected to the output end of the damper 4'. There are two main supports 1', and the two main supports 1' are movably connected by a movable pin 10'. A hook 6' is movably connected to the upper surface of the main support 1', and a magnet 7' is fixedly connected inside the main support 1'. This solution... Figure 1 From the above, when the cabinet door is opened by external force, the two magnets 7' on the hinge separate. When the door panel is opened to the corresponding position angle, after the external force exerted by the human body on the cabinet door disappears, the distance between the two magnets 7' is relatively close, and the two magnets 7' on the hinge are easily attracted to each other, causing the opened door to close automatically. In order to prevent the above phenomenon, this application adds a hook 6' and a slot 12' to engage and limit the opening state of the cabinet door. In addition, this solution involves two dampers 4', and the two dampers 4' are connected to the main support 1' through two connecting pieces, which also increases the overall cost. Therefore, this is a technical problem that urgently needs to be solved in this field.

[0004] Chinese Patent Document 2 (Application No.: 2024201356949, Application Date: 2024.01.19) discloses a hinge with magnetic adsorption positioning, including a fixed seat connected to a side panel and a rotating seat connected to a door panel. One end of the fixed seat is hinged to the rotating seat to realize the door panel rotating open and close on the side panel. The fixed seat is provided with a first magnet, and the rotating seat is provided with a second magnet and a magnetic actuating element corresponding to the first magnet. When the rotating seat rotates and closes on the fixed seat, the first magnet and the second magnet are magnetically attracted. When the rotating seat rotates and opens on the fixed seat, the first magnet and the second magnet separate. When the rotating seat rotates to the corresponding position angle, the first magnet and the magnetic actuating element are magnetically attracted to realize the door panel maintaining the corresponding rotational open position angle. This solution requires an additional magnetic actuating element for magnetic attraction, and the structure is relatively complex. Utility Model Content

[0005] In view of this, the present invention provides a top and bottom hinge for cabinets to solve the problem in the prior art where the distance between the two magnets is too close, and the two magnets on the hinge are easily attracted to each other, causing the door to close automatically after being opened.

[0006] In the first aspect, this utility model provides a top and bottom hinge for a cabinet, including a cabinet hinge and a door hinge arranged opposite to each other. The cabinet hinge and the door hinge are respectively installed on the cabinet and the door panel. A connecting shaft passes through the door hinge, and its head and tail are respectively rotatably connected to the cabinet hinge.

[0007] The cabinet hinge includes a cabinet contact part, a cabinet bending part, and a cabinet connecting part connected in sequence. The cabinet contact part has a C-shaped structure, with the opening of the C-shaped structure facing the door hinge side. The cabinet bending part has an L-shaped structure, with the opening of the cabinet bending part facing the cabinet side. The cabinet connecting part has a rectangular structure, extending away from the cabinet bending part. A cabinet stamping component pivot is provided on the side of the cabinet connecting part away from the cabinet bending part, and the cabinet stamping component pivot is rotatably connected to the stamping component.

[0008] At least two cabinet magnetic components are provided on the side of the cabinet contact portion near the cabinet bending portion. The at least two cabinet magnetic components are arranged side by side along the height direction of the cabinet contact portion. The cabinet magnetic components are cylindrical. A cabinet damping groove is provided on the side of the cabinet contact portion near the door hinge. The cabinet damping groove is recessed away from the cabinet connection portion. The cabinet damping groove is a circular groove.

[0009] A cabinet pivot hole is provided on the side of the cabinet contact portion away from the cabinet bending portion, and the cabinet pivot hole penetrates the cabinet contact portion along the height direction of the cabinet contact portion;

[0010] The door panel hinge includes a door panel contact portion and a door panel connecting portion connected to the door panel contact portion. The door panel contact portion has an U-shaped structure, and the opening of the U-shaped structure of the door panel contact portion faces the opening of the U-shaped structure of the cabinet contact portion. The door panel connecting portion is disposed on the side away from the opening of the U-shaped structure of the door panel contact portion. The door panel connecting portion has an elongated structure and extends along the height direction of the door panel contact portion.

[0011] A door panel magnetic component matching the cabinet magnetic component is provided on the side of the door panel contact portion near the door panel connection portion. Along the direction from the door panel hinge to the cabinet hinge, the orthographic projection of the door panel magnetic component overlaps with the orthographic projection of the door panel connection portion. A door panel damping hole corresponding to the cabinet damping groove is provided on the door panel contact portion. The door panel damping hole is circular, and its diameter is larger than the diameter of the cabinet damping groove. The elastic extension end of the cylinder damper passes through the door panel damping hole and contacts the cabinet damping groove. The cylinder damper reciprocates along the direction from the door panel damping hole to the cabinet damping groove.

[0012] Along the height direction of the door panel contact portion, the door panel contact portion includes an upper door panel contact section and a lower door panel contact section disposed opposite to each other. A door panel contact connecting section connects the upper door panel contact section and the lower door panel contact section. The upper door panel contact section, the door panel contact connecting section, and the lower door panel contact section together form the U-shaped structure of the door panel contact portion. Door panel pivot holes corresponding to the cabinet pivot holes are opened on the upper door panel contact section and the lower door panel contact section, respectively, in the direction from the upper door panel contact section to the lower door panel contact section. The connecting pivot passes through the door panel pivot hole, the cabinet pivot hole, and the door panel pivot hole of the upper door panel contact section in sequence.

[0013] The hinge is configured to include a first state and a second state. In the first state, the cabinet magnetic component and the door panel magnetic component are separated, and the cabinet magnetic component and the door panel magnetic component are located on opposite sides of the connecting shaft along the direction from the cabinet hinge to the door panel hinge. In the second state, the cabinet magnetic component and the door panel magnetic component are magnetically attracted to each other.

[0014] Secondly, this utility model provides a hinged door with top and bottom joints, including a cabinet body and a door panel. The cabinet body includes an upper horizontal plate and a lower horizontal plate arranged in parallel with each other. The upper horizontal plate and the lower horizontal plate are both hollow rectangular structures. The door panel includes a horizontal plate and a vertical plate. Both the horizontal plate and the vertical plate are hollow rectangular structures. The length extension direction of the horizontal plate is perpendicular to the length extension direction of the vertical plate, and the length extension direction of the horizontal plate is parallel to the length extension direction of the upper horizontal plate.

[0015] The door panel horizontal plate includes an upper door panel horizontal plate and a lower door panel horizontal plate arranged in parallel with each other, and the door panel vertical plate includes a left door panel vertical plate and a right door panel vertical plate arranged in parallel with each other;

[0016] The upper door panel horizontal plate is near the left door panel vertical plate, and the left door panel vertical plate is near the upper door panel horizontal plate; the lower door panel horizontal plate is near the left door panel vertical plate, and the left door panel vertical plate is near the lower door panel horizontal plate; the upper door panel horizontal plate is near the right door panel vertical plate, and the right door panel vertical plate is near the upper door panel horizontal plate; the lower door panel horizontal plate is near the right door panel vertical plate, and the right door panel vertical plate is near the lower door panel horizontal plate; the upper horizontal plate of the cabinet is near the left door panel vertical plate. The vertical panel of the cabinet door is connected to the side of the left vertical panel near the upper horizontal panel, the side of the lower horizontal panel of the cabinet near the left vertical panel is connected to the side of the left vertical panel near the lower horizontal panel, the side of the upper horizontal panel of the cabinet near the right vertical panel is connected to the side of the right vertical panel near the upper horizontal panel, and the side of the lower horizontal panel of the cabinet near the right vertical panel is connected to the side of the right vertical panel near the lower horizontal panel, respectively, by top and bottom hinges. The top and bottom hinges are the same as those used on the cabinet.

[0017] Compared with the prior art, the top and bottom hinges for cabinets provided by this utility model achieve at least the following beneficial effects:

[0018] First, the operation of the hinged door is made more convenient and safer through the cooperation of the cylinder damper, the cabinet magnetic component, and the door panel magnetic component. Users only need to push or pull gently for the door panel to open or close smoothly without having to use excessive force or worrying about the door suddenly closing and causing injury. At the same time, the magnetic attraction also ensures that the door will not be accidentally opened by external forces such as wind when it is closed, thus ensuring user safety. In this embodiment, only one cylinder damper is used, reducing manufacturing costs. When the door panel hinge is in the first state, the cabinet magnetic component and the door panel magnetic component are located on opposite sides of the connecting shaft along the direction from the cabinet hinge to the door panel hinge. This increases the distance between the cabinet magnetic component and the door panel magnetic component, preventing them from easily attracting each other and thus preventing the door panel from closing automatically after opening.

[0019] Secondly, when the door panel approaches the cabinet body, the attraction between the magnetic components of the cabinet body and the magnetic components of the door panel helps the door to be accurately positioned and tightly fitted to the cabinet body, thereby enhancing the door panel's sealing and sound insulation effects. Furthermore, the magnetic components of both the cabinet body and the door panel also provide a certain holding force when the door is closed, preventing the door from being easily opened by wind or other external forces.

[0020] Third, through the cooperation between the cabinet contact part, the cabinet bending part and the cabinet connecting part, it can not only connect the cabinet contact part and the cabinet connecting part to achieve a smooth transition between the two, but also help to enhance the overall strength and durability of the cabinet hinge. It can also be used in conjunction with the door panel hinge, and can firmly support the cabinet connecting part to prevent it from deforming or tilting.

[0021] Fourth, cabinet hinges and door hinges are easy to install and remove on top and bottom hinge doors, thereby improving the assembly efficiency between the cabinet and the door panel.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all the technical effects described above at the same time.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0025] Figure 1 This is a schematic diagram of the overall structure of a hydraulically damped concealed hinge structure provided in Chinese Patent Document 1.

[0026] Figure 2 This is a schematic diagram of a top and bottom hinge for a cabinet provided by this utility model;

[0027] Figure 3 This utility model provides an assembly diagram of the outer shell, stamped parts, hinge cover, door panel hinge and cabinet body hinge in a top and bottom hinge for a cabinet.

[0028] Figure 4 This utility model provides an assembly diagram of stamped parts, door hinges, and cabinet hinges in a top and bottom hinge for a cabinet.

[0029] Figure 5 This is an exploded view of the cabinet body hinge and door panel hinge in a top and bottom hinge for a cabinet provided by this utility model;

[0030] Figure 6This utility model provides an assembly diagram of cabinet body hinges and door panel hinges in a top and bottom hinge system for a cabinet.

[0031] Figure 7 This utility model provides a structural schematic diagram of a cabinet hinge with a connecting pivot in a top and bottom hinge for a cabinet;

[0032] Figure 8 This utility model provides a structural schematic diagram of a cabinet hinge in a top and bottom hinge system for a cabinet.

[0033] Figure 9 This utility model provides a structural schematic diagram of a door panel hinge with a cylinder damper in a top and bottom hinge for a cabinet;

[0034] Figure 10 This utility model provides a structural schematic diagram of a door hinge for removing magnetic components from the door panel in a cabinet's top and bottom hinges.

[0035] Figure 11 This is an exploded view of a cabinet hinge, including a door panel hinge, a cabinet body hinge, a connecting pivot, and a cabinet hinge box, provided by this utility model.

[0036] Figure 12 This is a schematic diagram of the structure of a hinged door with top and bottom hinges provided by this utility model in one direction;

[0037] Figure 13 This is a structural schematic diagram of a top-and-bottom hinged door provided by this utility model from another direction;

[0038] Figure 14 yes Figure 13 Enlarged view of point A in the middle;

[0039] Figure 15 yes Figure 13 Explosion diagram at point A in the middle. Detailed Implementation

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0043] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] See Figures 2-10 As shown, Figure 2 This is a schematic diagram of a top and bottom hinge for a cabinet provided by this utility model; Figure 3 This utility model provides an assembly diagram of the outer shell, stamped parts, hinge cover, door panel hinge and cabinet body hinge in a top and bottom hinge for a cabinet. Figure 4 This utility model provides an assembly diagram of stamped parts, door hinges, and cabinet hinges in a top and bottom hinge for a cabinet. Figure 5 This is an exploded view of the cabinet body hinge and door panel hinge in a top and bottom hinge for a cabinet provided by this utility model; Figure 6 This utility model provides an assembly diagram of cabinet body hinges and door panel hinges in a top and bottom hinge system for a cabinet. Figure 7 This utility model provides a structural schematic diagram of a cabinet hinge with a connecting pivot in a top and bottom hinge for a cabinet;

[0046] Figure 8 This utility model provides a structural schematic diagram of a cabinet hinge in a top and bottom hinge system for a cabinet. Figure 9 This utility model provides a structural schematic diagram of a door panel hinge with a cylinder damper in a top and bottom hinge for a cabinet; Figure 10 This utility model provides a structural schematic diagram of a door hinge for removing magnetic components from the door panel in a cabinet's top and bottom hinges. Figure 11 This utility model provides an exploded view of a top and bottom hinge for a cabinet, comprising a door panel hinge, a cabinet body hinge, a connecting pivot, and a cabinet hinge box. This embodiment provides a top and bottom hinge 00 for a cabinet, including a cabinet body hinge 1 and a door panel hinge 2 arranged opposite each other. The cabinet body hinge 1 and the door panel hinge 2 are respectively installed on the cabinet body 5 (e.g.,...). Figure 13 (as shown) and door panel 6 (as shown) Figure 13 As shown), the connecting shaft 3 passes through the door panel hinge 2, and its two ends are rotatably connected to the cabinet hinge 1 respectively;

[0047] The cabinet hinge 1 includes a cabinet contact part 11, a cabinet bending part 12, and a cabinet connecting part 13 connected in sequence. The cabinet contact part 11 has a C-shaped structure, and the opening of the C-shaped structure of the cabinet contact part 11 faces the door hinge 2. The cabinet bending part 12 has an L-shaped structure, and the opening of the cabinet bending part 12 faces the cabinet 5. The cabinet connecting part 13 has a rectangular structure, and the length of the cabinet connecting part 13 extends away from the cabinet bending part 12.

[0048] At least two cabinet magnetic components 110 are provided on the side of the cabinet contact portion 11 near the cabinet bending portion 12. The at least two cabinet magnetic components 110 are arranged side by side along the height direction of the cabinet contact portion 11. The cabinet magnetic components 110 are cylindrical. A cabinet damping groove 111 is provided on the side of the cabinet contact portion 11 near the door hinge 2. The cabinet damping groove 111 is recessed away from the cabinet connection portion 13. The cabinet damping groove 111 is a circular groove.

[0049] A cabinet pivot hole 112 is provided on the side of the cabinet contact part 11 away from the cabinet bending part 12. The cabinet pivot hole 112 passes through the cabinet contact part 11 along the height direction of the cabinet contact part 11. A cabinet stamping part pivot 130 is provided on the side of the cabinet connecting part 13 away from the cabinet bending part 12. The cabinet stamping part pivot 130 is rotatably connected to the stamping part 42.

[0050] The door panel hinge 2 includes a door panel contact portion 21 and a door panel connecting portion 22 connected to the door panel contact portion 21. The door panel contact portion 21 has an U-shaped structure, and the opening of the U-shaped structure of the door panel contact portion 21 faces the opening of the U-shaped structure. The door panel connecting portion 22 is provided on the side away from the opening of the U-shaped structure of the door panel contact portion 21. The door panel connecting portion 22 has a long strip structure and extends along the height direction of the door panel contact portion 21.

[0051] A door panel magnetic component 210 matching the cabinet magnetic component 110 is provided on the side of the door panel contact portion 21 near the door panel connecting portion 22. The orthographic projection of the door panel magnetic component 210 overlaps with the orthographic projection of the door panel connecting portion 22 in the direction from the door panel hinge 2 to the cabinet hinge 1. The door panel contact portion 21 has a door panel damping hole 211 corresponding to the cabinet damping groove 111. The door panel damping hole 211 is a circular hole with a diameter larger than that of the cabinet damping groove 111. The elastic extension end of the cylinder damper 7 passes through the door panel damping hole 211 and contacts the cabinet damping groove 111. The cylinder damper 7 reciprocates in the direction from the door panel damping hole 211 to the cabinet damping groove 111.

[0052] Along the height direction of the door panel contact portion 21, the door panel contact portion 21 includes an upper door panel contact section 212 and a lower door panel contact section 213 disposed opposite to each other. A door panel contact connecting section 214 connects the upper door panel contact section 212 and the lower door panel contact section 213. The upper door panel contact section 212, the door panel contact connecting section 214, and the lower door panel contact section 213 together form an U-shaped structure of the door panel contact portion 21. 213 has a door panel pivot hole 2120 corresponding to the cabinet pivot hole 112. The door panel pivot hole 2120 passes through the upper door panel contact section 212 and the lower door panel contact section 213 respectively in the direction from the upper door panel contact section 212 to the lower door panel contact section 213. The connecting pivot 3 passes through the door panel pivot hole 2120 of the upper door panel contact section 212, the cabinet pivot hole 112 and the door panel pivot hole 2120 of the lower door panel contact section 213 in sequence.

[0053] The hinge is configured to include a first state and a second state. In the first state, the cabinet magnetic component 110 and the door panel magnetic component 210 are separated, and the cabinet magnetic component 110 and the door panel magnetic component 210 are located on opposite sides of the connecting shaft 3 along the direction from the cabinet hinge 1 to the door panel hinge 2. When the door panel hinge 2 is in the closed position, the cabinet magnetic component 110 and the door panel magnetic component 210 are magnetically attracted to each other.

[0054] Continue to refer to Figures 2-4 As shown, the aforementioned top and bottom hinge 00 used on the cabinet can be a special magnetic resistance top and bottom hinge 00 applied to top and bottom hinge doors. The aforementioned top and bottom hinge doors can be applied to aluminum frame doors or wooden frame doors.

[0055] The top and bottom hinge 00 includes a cabinet hinge 1 and a door hinge 2 arranged opposite to each other. The cabinet hinge 1 and the door hinge 2 are respectively installed on the cabinet 5 and the door 6 to ensure the smooth opening and closing and stability of the top and bottom hinge door. The cabinet hinge 1 and the door hinge 2 are rotatably connected by a connecting shaft 3. The rotation between the cabinet hinge 1 and the door hinge 2 is realized by the connecting shaft 3, so that the door 6 can be opened and closed relative to the cabinet 5, thereby facilitating the opening or closing of the door 6, while ensuring the overall structure and stability of the cabinet 5.

[0056] Combination Figure 5 and Figure 6 As shown, the cabinet hinge 1 includes a cabinet contact part 11, a cabinet bending part 12, and a cabinet connecting part 13 connected in sequence. The cabinet contact part 11 is used to install the cabinet magnetic component 110, the cabinet bending part 12, and the cabinet connecting part 13. The cabinet bending part 12 is used to connect the cabinet contact part 11 and the cabinet connecting part 13 to achieve a smooth transition between the two, and also helps to enhance the overall strength and durability of the cabinet hinge 1. The cabinet connecting part 13 is used to connect the cabinet 5 and firmly install the cabinet hinge 1 on the cabinet 5.

[0057] The cabinet contact part 11 has a U-shaped structure, with the opening of the U-shaped structure facing the door hinge 2 to facilitate cooperation with it. The cabinet bending part 12 has an L-shaped structure, with the opening of the L-shaped structure facing the cabinet 5. The cabinet contact part 11 and the cabinet bending part 12 near the bending part 12 form a Z-shaped structure. The L-shaped cabinet bending part 12 can firmly support the cabinet connecting part 13, preventing it from deforming or tilting. The Z-shaped structure increases the contact area and friction, making the cabinet hinge 1 and the door hinge 2 more firmly connected, improving the stability of the cabinet hinge 1. At the same time, it can distribute the weight of the cabinet 5 more evenly on the support points, thereby enhancing the load-bearing capacity of the cabinet 5. The cabinet connecting part 13 has a rectangular structure. The length of the cabinet connecting part 13 extends away from the cabinet bending part 12. The cabinet connecting part 13 is directly inserted into the stamped part 42 in the hinge box for connecting the cabinet 5.

[0058] At least two cabinet magnetic components 110 are provided on the side of the cabinet contact portion 11 near the cabinet bending portion 12. The number of cabinet magnetic components 110 can be two, three, or four. This embodiment does not make a specific limitation. This embodiment only uses two cabinet magnetic components 110 as an example. The cabinet magnetic components 110 can be magnets, such as ferrite magnets, samarium cobalt magnets, alnico magnets, or neodymium magnets. Neodymium magnets, also known as neodymium iron boron magnets, are tetragonal crystals formed by neodymium, iron, and boron (Nd2Fe14B). Neodymium magnets are mainly composed of rare elements and have very high coercivity. Under natural environment and normal conditions, their magnetic force cannot be affected, ensuring the stability of the magnetic force and improving the service life of the cabinet magnetic components 110, avoiding damage to the cabinet hinge 1 from repeated magnet replacements.

[0059] The aforementioned cabinet contact part 11, cabinet bending part 12, and cabinet connecting part 13 form a single integrated structure. These parts are integrally cast without seams or connection points, resulting in superior overall stability. This structure effectively resists external forces, such as frequent opening and closing of hinged doors and the hanging of heavy objects, thus extending the lifespan of the cabinet hinges and the entire cabinet. Furthermore, the integrated structure reduces the risk of malfunctions due to loosening or wear at joints, and simplifies subsequent installation as there is no need to consider the alignment and adjustment between the cabinet contact part 11, cabinet bending part 12, and cabinet connecting part 13.

[0060] Two cabinet magnetic components 110 are arranged side by side along the height direction of the cabinet contact portion 11, with a gap between the two cabinet magnetic components 110. The cabinet magnetic components 110 are cylindrical. A cabinet damping groove 111 is provided on the side of the cabinet contact portion 11 near the door hinge 2. The cabinet damping groove 111 is recessed on the side away from the cabinet connection portion 13. The cabinet damping groove 111 is a circular groove.

[0061] A cabinet pivot hole 112 is provided on the side of the cabinet contact part 11 away from the cabinet bending part 12. The cabinet pivot hole 112 is a circular hole that passes through the cabinet contact part 11 along the height direction of the cabinet contact part 11. The height of the cabinet pivot hole 112 along the cabinet contact part 11 is the same as the height of the cabinet contact part 11. A cabinet stamping part pivot 130 is provided on the side of the cabinet connecting part 13 away from the cabinet bending part 12. The cabinet stamping part pivot 130 is rotatably connected to the stamping part 42, which can realize the connection and adjustment between the top and bottom hinges 00 and the cabinet 5. Through the cabinet stamping part pivot 130, the gap between the top and bottom hinges 00 and the cabinet 5 can be easily adjusted, so that the door panel 6 can fit more tightly against the cabinet 5 when closed, improving sealing and aesthetics.

[0062] Combination Figure 5 , Figures 9-10 As shown, the door hinge 2 includes a door contact portion 21 and a door connecting portion 22 connected to the door contact portion 21. The door contact portion 21 is used to connect to the cabinet contact portion 11, and the door connecting portion 22 is used to contact the door vertical plate 62 and the cabinet bending portion 12. The door contact portion 21 has a U-shaped structure, and the opening of the U-shaped structure of the door contact portion 21 faces the opening of the U-shaped structure of the cabinet contact portion 11. That is, the opening of the U-shaped structure of the door contact portion 21 corresponds to the opening of the U-shaped structure of the cabinet contact portion 11. The door contact portion 21 and the door connecting portion 22 can be an integral structure. Designing the door contact portion 21 and the door connecting portion 22 as an integral structure can not only improve the stability and durability of the door hinge 2 and the entire top and bottom hinge door, but also facilitate installation and maintenance, while avoiding secondary assembly to save time and costs.

[0063] The door panel connecting part 22 is provided on the side away from the opening of the U-shaped structure in the door panel contact part 21. The side of the door panel connecting part 22 away from the door panel 6 contacts the vertical plate 62 of the door panel, and the side of the door panel connecting part 22 close to the door panel 6 contacts the cabinet bending part 12. The door panel connecting part 22 is a long strip structure and extends along the height direction of the door panel contact part 21.

[0064] The door panel contact part 21 is provided with a door panel magnetic component 210 that matches the cabinet magnetic component 110 on the side near the door panel connection part 22. The number and shape of the door panel magnetic component 210 match the cabinet magnetic component 110. The door panel magnetic component 210 can also be a magnet, such as a ferrite magnet, samarium cobalt magnet, alnico magnet or neodymium magnet.

[0065] Along the direction from the door hinge 2 to the cabinet hinge 1, the orthographic projection of the door panel magnetic component 210 overlaps with the orthographic projection of the door panel connecting part 22. The door panel connecting part 22 can prevent the door panel magnetic component 210 from falling off to the side away from the cabinet hinge 1, thereby improving the stability of the door panel magnetic component 210. The cabinet magnetic component 110 located on the cabinet hinge 1 and the door panel magnetic component 210 located on the door panel hinge 2 are attracted to each other. The cabinet magnetic component 110 is installed at the corresponding position of the cabinet contact part 11 in the cabinet hinge 1, while the door panel magnetic component 210 is installed at the corresponding position of the door panel contact part 21 in the door panel hinge 2. When the door panel 6 is closed, the cabinet magnetic component 110 and the door panel magnetic component 210 attract each other, ensuring that the door panel 6 can fit tightly against the cabinet 5, improving the overall sealing and aesthetics. That is, the cabinet magnetic component 110 and the door panel magnetic component 210 enhance the connection stability and closing effect between the door panel 6 and the cabinet 5. At the same time, the above-mentioned magnetic connection can also reduce the shaking and abnormal noise of the door panel 6 during use, improving the user experience.

[0066] The elastic telescopic end of the aforementioned cylinder damper 7 can extend into the door panel damping hole 211. When the door panel 6 needs to be closed, the elastic telescopic end of the cylinder damper 7 moves along the door panel damping hole 211 towards the cabinet damping groove 111, and generates a buffering effect through contact with the cabinet damping groove 111. This reciprocating telescopic motion effectively slows down the closing speed of the door panel 6, preventing the door panel 6 from colliding violently with the cabinet 5. This can be understood as the cylinder damper 7 reducing kinetic energy by providing resistance to movement, thereby stabilizing the system or reducing unnecessary vibrations. In the application of aluminum frame doors, this ensures smooth and silent opening and closing, improving user comfort and door durability.

[0067] The upper contact section 212, the connecting section 214, and the lower contact section 213 of the door panel are designed as an U-shaped structure for the door panel contact portion 21. The side of the upper contact section 212 and the lower contact section 213 away from the connecting section 214 is flush with the side of the cabinet contact portion 11 away from the door hinge 2. Furthermore, the upper contact section 212, the connecting section 214, the lower contact section 213, and the door panel connecting portion 22 are designed as an integrated structure. This integrated structure design ensures that all parts of the door hinge are tightly connected, forming a whole, thereby greatly enhancing the structural stability of the door hinge 2. This stability is crucial for bearing the weight of the door panel and for daily opening and closing operations, ensuring the long-term stable operation of the door hinge 2, reducing the possibility of malfunctions and damage, and reducing the installation steps and difficulty of the door hinge 2, greatly simplifying the installation process, improving installation efficiency, and making the door hinge 2 more neat and aesthetically pleasing.

[0068] The upper section 212 and the lower section 213 of the door panel are provided with door panel pivot holes 2120 corresponding to the cabinet pivot hole 112. The door panel pivot holes 2120 pass through the upper section 212 and the lower section 213 of the door panel in the direction from the upper section 212 to the lower section 213 of the door panel. The connecting shaft 3 passes through the door panel pivot hole 2120 of the upper section 212 of the door panel, the cabinet pivot hole 112 and the door panel pivot hole 2120 of the lower section 213 of the door panel in sequence. Optionally, a pivot sleeve 31 is sleeved on the outer surface of the connecting shaft 3.

[0069] The aforementioned connecting shaft 3 is a cylinder and is the core component of the top and bottom hinge 00. It has sufficient strength and rigidity to withstand the force and torque when the door panel 6 is opened and closed. It is responsible for transmitting the force when the door panel 6 is opened or closed and ensuring that the door panel 6 can rotate smoothly around the shaft. Specifically, one end of the connecting shaft 3 passes through the door panel pivot hole 2120 of the upper section 212 of the door panel and connects to the door panel pivot hole 2120 of the lower section 213 of the door panel through the cabinet pivot hole 112, thus rotatably connecting the cabinet hinge 1 and the door panel hinge 2. The design of the connecting shaft 3 and the pivot sleeve 31 ensures that the door panel 6 remains stable during opening and closing, reducing shaking. Through the cooperation of the connecting shaft 3 and the pivot sleeve 31, the direct friction between the door panel hinge 2, the cabinet hinge 1 and the door panel 6, and the cabinet 5 can be reduced, thereby extending the service life.

[0070] When door panel 6 needs to be opened or closed, the force applied manually to door panel 6 is transmitted to connecting shaft 3. Connecting shaft 3, acting as a connector, transmits this force to cabinet hinge 1, thereby causing door panel 6 to rotate relative to cabinet 5. During this process, the fit between connecting shaft 3 and the door panel hinge hole 2120 in the upper section 212 of the door panel, the cabinet hinge hole 112, and the door panel hinge hole 2120 in the lower section 213 of the door panel needs to be very tight to ensure that door panel 6 can open and close smoothly and steadily.

[0071] The principle behind the rotational connection between the cabinet hinge 1 and the door hinge 2 via the connecting shaft 3 is that the connecting shaft 3 acts as a connector, tightly linking the door hinge 2 and the cabinet hinge 1 together. This, in turn, connects the door panel 6 and the cabinet 5, ensuring that the door panel 6 can open and close smoothly and steadily. This connection method not only improves the practicality and durability of the top and bottom hinges 00, but also brings more convenience and comfort to people's lives.

[0072] The first state described above can be when the door hinge 2 is in the open position. For example, when the door panel 6 is in the open position, due to the action of the door hinge 2 and the cabinet hinge 1, the relative position between the door panel 6 and the cabinet 5 changes, causing the distance between the cabinet magnetic component 110 and the door magnetic component 210 to increase, thus separating them. The second state described above can be when the door hinge 2 is in the closed position. When the door panel 6 is in the closed position, the distance between the cabinet magnetic component 110 and the door magnetic component 210 decreases, the magnetic effect is enhanced, causing the cabinet magnetic component 110 and the door magnetic component 210 to attract each other, thereby maintaining the stable closed state of the door panel 6.

[0073] Optionally, the cabinet hinge 1 and door hinge 2 can be made of metal, including aluminum or stainless steel. Cabinet hinge 1 and door hinge 2 made of aluminum and stainless steel have high strength and load-bearing capacity, can withstand large loads without being easily damaged, and move freely and bear force well, without being prone to jamming or damage, thus ensuring the safety of use. At the same time, they have good corrosion resistance and oxidation resistance, and can resist the corrosion and oxidation of various chemicals, so that cabinet hinge 1 and door hinge 2 can maintain long-term stable performance in humid or corrosive environments.

[0074] Compared with the prior art, the top and bottom hinge 00 for cabinets provided in this embodiment achieves at least the following beneficial effects:

[0075] First, the cooperation between the cylinder damper 7, the cabinet magnetic component 110, and the door panel magnetic component 210 makes the operation of the hinged door more convenient and safer. Users only need to push or pull gently for the door panel to open or close smoothly without having to use excessive force or worrying about the door suddenly closing and causing injury. At the same time, the magnetic attraction also ensures that the door will not be accidentally opened by external forces such as wind when it is closed, thus ensuring the safety of users. In this embodiment, the number of cylinder dampers 7 is only one, reducing manufacturing costs. When the door panel hinge 2 is in the first state, the cabinet magnetic component 110 and the door panel magnetic component 210 are located on opposite sides of the connecting shaft 3 along the direction from the cabinet hinge 1 to the door panel hinge 2. This increases the distance between the cabinet magnetic component 110 and the door panel magnetic component 210 to avoid easy attraction between them, thereby preventing the door panel 6 from closing automatically after opening.

[0076] Secondly, when the door panel 6 approaches the cabinet body 5, the attraction between the cabinet body magnetic component 110 and the door panel magnetic component 210 helps the door to be accurately positioned and tightly fitted onto the cabinet body 5, thereby enhancing the sealing and sound insulation of the door panel 6. Furthermore, the cabinet body magnetic component 110 and the door panel magnetic component 210 also provide a certain holding force when the door panel 6 is closed, preventing the door from being easily opened by wind or other external forces.

[0077] Third, through the cooperation between the cabinet contact part 11, the cabinet bending part 12 and the cabinet connecting part 13, not only can the cabinet contact part 11 and the cabinet connecting part 13 be connected to achieve a smooth transition between the two, but it also helps to enhance the overall strength and durability of the cabinet hinge 1. Moreover, it can be used in conjunction with the door panel hinge 2, and can firmly support the cabinet connecting part 13 to prevent it from deforming or tilting.

[0078] Fourth, cabinet hinge 1 and door hinge 2 are easy to install and remove from the top and bottom hinge doors, thereby improving the assembly efficiency between the cabinet body 5 and the door panel 6.

[0079] In one alternative embodiment, combined with Figure 5 , Figure 6 and Figure 7 As shown, the cabinet contact portion 11 includes a cabinet contact front section 113, a cabinet contact connecting section 114, and a cabinet contact rear section 115. The cabinet contact front section 113, the cabinet contact connecting section 114, and the cabinet contact rear section 115 together form an U-shaped structure of the cabinet contact portion 11. The cabinet pivot hole 112 is located in the cabinet contact front section 113. Along the direction from the door hinge 2 to the cabinet hinge 1, the thickness of the cabinet contact connecting section 114 near the cabinet contact rear section 115 is greater than the thickness of the cabinet contact connecting section 114 near the cabinet contact front section 113.

[0080] The aforementioned cabinet pivot hole 112 can be formed in the cabinet contact front section 113. The cabinet pivot hole 112 extends through the cabinet contact front section 113 along its height. The pivot is inserted into the cabinet pivot hole 112 in the cabinet contact front section 113. The thickness of the cabinet contact connecting section 114 is different along the direction from the door hinge 2 to the cabinet hinge 1. This facilitates the formation of a cabinet magnetic groove 116 on the side of the cabinet contact connecting section 114 near the cabinet contact rear section 115. Subsequently, the cabinet magnetic component 11... The magnetic component 110 is installed in the magnetic groove 116 of the cabinet. When the door panel 6 is opened, the magnetic component 110 of the cabinet and the magnetic component 210 of the door panel are respectively designed on opposite sides of the front contact section 113 of the cabinet, pointing from the front contact section 113 of the cabinet to the rear contact section 115 of the cabinet. This avoids the magnetic component 110 of the cabinet and the magnetic component 210 of the door panel when the door panel 6 is opened, thereby preventing the magnetic component 110 of the cabinet and the magnetic component 210 of the door panel from being too close together. This also prevents the magnetic component 110 of the cabinet and the magnetic component 210 of the door panel from being easily attracted to each other, ensuring that the door is not easy to close automatically after the door panel 6 is opened.

[0081] The cabinet contact front section 113, cabinet contact connecting section 114, and cabinet contact rear section 115 are integrated into one structure, which not only improves the stability and firmness of the cabinet contact part, but also saves installation steps and improves assembly efficiency.

[0082] In one alternative embodiment, combined with Figure 5 and Figure 8As shown, along the direction from the door hinge 2 to the cabinet hinge 1, the cabinet contact connection section 114 near the cabinet contact rear section 115 has a cabinet magnetic groove 116 that matches the cabinet magnetic component 110. The cabinet magnetic groove 116 is recessed away from the door hinge 2, and the cabinet magnetic component 110 is located in the cabinet magnetic groove 116.

[0083] Along the direction from cabinet hinge 1 to door hinge 2, the door panel contact connection section 214 near the door panel connection part 22 has a door panel magnetic through hole 215 that matches the door panel magnetic component 210. The door panel magnetic through hole 215 passes through the door panel contact connection section 214, and the door panel magnetic component 210 is located inside the door panel magnetic through hole 215. The orthographic projection of the door panel magnetic through hole 215 along the direction from cabinet hinge 1 to door hinge 2 overlaps with the orthographic projection of the door panel connection part 22.

[0084] The cabinet magnetic component 110 is installed in the aforementioned cabinet magnetic groove 116. The shape of the cabinet magnetic groove 116 matches the shape of the cabinet magnetic component 110. For example, if the cabinet magnetic groove 116 and the cabinet magnetic component 110 are both circular, the cabinet magnetic component 110 can be installed in the cabinet magnetic groove 116. The structure is simple and easy to implement.

[0085] The aforementioned magnetic through-hole 215 in the door panel is used to install the magnetic component 210. The shapes of the magnetic through-hole 215 and the magnetic component 210 are matched. The magnetic through-hole 215 and the magnetic component 210 are both circular. Installing the magnetic component 210 in the magnetic through-hole 215 results in a simple structure and easy operation. To prevent the magnetic component 210 from falling off the door panel contact connection section 214, the orthographic projection of the magnetic through-hole 215 in the direction from the cabinet hinge 1 to the door hinge 2 is aligned with the orthographic projection of the door panel connection section 22. The door panel connection section 22 prevents the magnetic component 210 from falling off to the side away from the cabinet contact connection section.

[0086] In one alternative embodiment, combined with Figure 5 and Figure 8As shown, the two cabinet magnetic grooves 116 and the cabinet damping grooves 111, as well as the two door panel magnetic through holes 215 and the door panel damping holes 211, form a triangular structure. With the above scheme, when the door panel hinge 2 and the cabinet hinge 1 are in the closed state, a cylinder damper 7 forms a triangular relationship with the two sets of cabinet magnetic components 110 and door panel magnetic components 210. Through the triangular support formed by the two sets of cabinet magnetic components 110 and door panel magnetic components 210 and a cylinder damper 7, the pressure of the door panel hinge 2 on the top and bottom hinges 00 can be more effectively dispersed, thereby enhancing the load-bearing capacity of the top and bottom hinges 00. At the same time, the cylinder damper 7 plays a key buffering role in the triangular relationship, which can ensure that the door panel 6 is smoother during opening and closing, avoid violent collisions, and reduce noise. In addition, the two sets of cabinet magnetic components 110 and door panel magnetic components 210 also help the door panel 6 to fit more tightly against the cabinet 5 when closed, improving the overall aesthetics and sealing performance. Due to the stability of the triangular relationship, coupled with the cooperation of the cylinder damper 7 and the two sets of cabinet magnetic components 110 and door panel magnetic components 210, the top and bottom hinges 00 can maintain high durability during frequent use.

[0087] In one alternative embodiment, combined with Figures 2-4 As shown, along the direction from cabinet hinge 1 to door hinge 2, the orthographic projection of the front section 113 of the cabinet contact and the orthographic projection of the connecting section 114 of the cabinet contact are located within the orthographic projection of the connecting section 214 of the door contact; along the direction from the upper section 212 of the door contact to the lower section 213 of the door contact, the orthographic projection of the front section 113 of the cabinet contact and the orthographic projection of the connecting section 114 of the cabinet contact are located within the orthographic projection of the upper section 212 of the door contact. With the above scheme, after installation, the front section 113 of the cabinet contact and the connecting section 114 of the cabinet contact are located at the door contact portion 21 from the direction from cabinet hinge 1 to door hinge 2 and from the direction from the upper section 212 of the door contact to the lower section 213 of the door contact, that is, they are located at the door contact portion 21 from both the vertical and horizontal directions, which improves the compactness of the overall structure and eliminates the need to occupy additional space of the door panel 6.

[0088] In one alternative embodiment, combined with Figure 5 , Figure 6 , Figure 9 and Figure 10As shown, the door panel connecting part 22 includes a door panel connecting vertical section 221 and a door panel connecting contact section 222 connected to the door panel connecting vertical section 221. The door panel connecting contact section 222 is located above the door panel connecting vertical section 221. The door panel connecting vertical section 221 has a rectangular structure, and the door panel connecting contact section 222 has a right-angled triangle. The hypotenuse of the right-angled triangle is away from the door panel contact connecting section 214. In the above scheme, the door panel connecting vertical section 221, away from the cabinet 5, contacts the door panel vertical plate 62, and the door panel connecting contact section 222, closer to the cabinet 5, contacts the door panel horizontal plate 61. The side of the door panel connecting contact section 222 closer to the cabinet 5 and the door panel horizontal plate 61 have a 45-degree hypotenuse. Using the above scheme, the door panel horizontal plate 61 can be effectively connected (e.g., Figure 13 (as shown) and door panel vertical plate 62 (as shown) Figure 13 (As shown).

[0089] In one alternative embodiment, combined with Figure 2 , Figure 3 , Figure 4 and Figure 11 As shown, the hinge also includes a cabinet hinge box 4, which includes a shell 41, a stamped part 42, a cabinet hinge connector 43, and a hinge cover 44.

[0090] The outer shell 41 is a hollow rectangular structure with an opening at one end. The opening of the outer shell 41 faces the cabinet connecting part 13. A stamped part 42 is fitted inside the outer shell 41. The stamped part 42 is a C-shaped structure. The opening of the C-shaped structure in the stamped part 42 faces the door panel 6. The cabinet connecting part 13 is inserted into the stamped part 42. The side of the outer shell 41 near the door panel 6 is covered by the hinge cover 44. The side of the hinge cover 44 away from the hinge cover 44 is connected to the cabinet hinge connector 43. The cabinet stamped part pivot 130 passes through the stamped part 42.

[0091] The outer shell 41 is used to fit the stamped part 42, protect the structure of the stamped part 42 and the cabinet connecting part 13, the stamped part 42 is used to fix the cabinet connecting part 13, the cabinet hinge connector 43 is used to connect the cabinet hinge box 4 to the upper horizontal plate 51 and the lower horizontal plate 52 of the cabinet, and the hinge cover 44 is used to cover the outer shell 41.

[0092] Using the above solution, the hinge box can be concealed within the upper horizontal plate 51 and lower horizontal plate 52 of the cabinet, along the direction from the cabinet 5 to the door panel 6. This eliminates the need to increase the thickness of the upper and lower horizontal plates 51 and 52, reducing the overall space occupied. The hinge box can be placed on the upper and lower horizontal plates 51 and 52 along the direction from the cabinet hinge 1 to the door hinge 2. The outer shell 41 and hinge cover 44 protect the stamped part 42 and the cabinet connection part 13, preventing dust and debris from entering and extending their service life. Inserting the cabinet connection part 13 into the stamped part 42 ensures a secure connection between the door panel 6 and the cabinet 5, improving the overall structural stability. The stamped part 42 can withstand the weight of the door panel 6, ensuring stable opening and closing of the door panel 6. This can be understood as improving the structural stability, ease of use, aesthetics, and load-bearing capacity between the door panel 6 and the cabinet 5, thereby providing users with a higher quality and more durable user experience. Furthermore, the opening of the outer casing 41 faces the cabinet connection part 13, facilitating the installation and removal of the cabinet hinge 1.

[0093] Example 2

[0094] Continue to refer to Figures 12-15 As shown, Figure 12 This is a schematic diagram of the structure of a hinged door with top and bottom hinges provided by this utility model in one direction; Figure 13 This is a structural schematic diagram of a top-and-bottom hinged door provided by this utility model from another direction; Figure 14 yes Figure 13 Enlarged view of point A in the middle; Figure 15 yes Figure 13 Exploded view at point A; This embodiment provides a hinged door, including a cabinet body 5 and a door panel 6. The cabinet body 5 includes an upper horizontal plate 51 and a lower horizontal plate 52 arranged in parallel, both of which are hollow rectangular structures. The door panel 6 includes a horizontal door panel 61 and a vertical door panel 62, both of which are hollow rectangular structures. The length extension direction of the horizontal door panel 61 is perpendicular to the length extension direction of the vertical door panel 62, and parallel to the length extension direction of the upper horizontal plate 51. The horizontal door panel 61 includes an upper horizontal door panel 610 and a lower horizontal door panel 611 arranged in parallel, and the vertical door panel 62 includes a left vertical door panel 621 and a right vertical door panel 622 arranged in parallel.

[0095] The upper door panel horizontal plate 610 is located near the left door panel vertical plate 621, and the left door panel vertical plate 621 is located near the upper door panel horizontal plate 610; the lower door panel horizontal plate 611 is located near the left door panel vertical plate 621, and the left door panel vertical plate 621 is located near the lower door panel horizontal plate 611; the upper door panel horizontal plate 610 is located near the right door panel vertical plate 622, and the right door panel vertical plate 622 is located near the upper door panel horizontal plate 610; the lower door panel horizontal plate 611 is located near the right door panel vertical plate 622, and the right door panel vertical plate 622 is located near the lower door panel horizontal plate 611; the upper cabinet horizontal plate 51 is located near the left door panel vertical plate. The cabinet is connected to the left door panel vertical plate 621 near the upper door panel horizontal plate 610 on one side, the cabinet lower horizontal plate 52 near the left door panel vertical plate 621 and the left door panel vertical plate 621 near the lower door panel horizontal plate 611 on the other side, the cabinet upper horizontal plate 51 near the right door panel vertical plate 622 and the right door panel vertical plate 622 near the upper door panel horizontal plate 610 on the other side, and the cabinet lower horizontal plate 52 near the right door panel vertical plate 622 and the right door panel vertical plate 622 near the lower door panel horizontal plate 611 on the other side, respectively, by top and bottom hinges 00. The top and bottom hinges 00 are the top and bottom hinges 00 used on the cabinet mentioned above.

[0096] The aforementioned hinged door can be a cabinet, which includes a cabinet body 5. The cabinet body 5 can be any type of cabinet, such as a kitchen cabinet, shoe cabinet, wardrobe, wine cabinet, or display cabinet, without any limitation. The cabinet body 5 includes an upper horizontal panel 51 and a lower horizontal panel 52, which are arranged opposite to each other and are relatively parallel. The upper horizontal panel 51 is located above the lower horizontal panel 52, and both the upper horizontal panel 51 and the lower horizontal panel 52 are hollow rectangular rods. The door panel 6 includes a door panel horizontal panel 61 and a door panel vertical panel 62, which are both hollow rectangular rods.

[0097] The horizontal door panel 61 and the vertical door panel 62 are perpendicular to each other, and the horizontal door panel 61 is parallel to the upper horizontal panel 51 of the cabinet. The upper door panel 610 and the lower door panel 611 are arranged opposite each other and are parallel to each other. The upper door panel 610 includes a left upper door panel 6101 and a right upper door panel 6102 arranged opposite each other. Along the length of the upper horizontal panel 51 of the cabinet, the left upper door panel 6101 and the right upper door panel 6102 are located on the same plane. The lower door panel 611 includes a left lower door panel 611 arranged opposite each other. 1. The lower left door panel 6111 and the lower right door panel 6112 are located on the same plane along the length of the lower horizontal panel 52 of the cabinet. The upper left door panel 6101 and the lower left door panel 6111 are relatively parallel to each other, and the upper right door panel 6102 and the lower right door panel 6112 are relatively parallel to each other. The upper left door panel 6101 and the lower left door panel 6111 are connected by a left door panel 63, and the upper right door panel 6102 and the lower right door panel 6112 are connected by a right door panel 64.

[0098] Between the side of the upper left door panel horizontal panel 6101 closest to the left door panel vertical panel 621 and the side of the left door panel vertical panel 621 closest to the upper left door panel horizontal panel 6101; between the side of the lower left door panel horizontal panel 6111 closest to the left door panel vertical panel 621 and the side of the left door panel vertical panel 621 closest to the lower left door panel horizontal panel 6111; between the side of the upper right door panel horizontal panel 6102 closest to the right door panel vertical panel 622 and the side of the right door panel vertical panel 622 closest to the upper right door panel horizontal panel 6102; and between the side of the lower right door panel horizontal panel 6112 closest to the left door panel vertical panel 622. The side of the right door panel vertical plate 622 and the side of the right door panel vertical plate 622 near the right lower door panel horizontal plate 6112 are respectively connected by top and bottom hinges 00; the side of the upper horizontal plate 51 of the cabinet near the upper left door panel horizontal plate 6101, the side of the upper horizontal plate 51 of the cabinet near the upper right door panel horizontal plate 6102, the side of the lower horizontal plate 52 of the cabinet near the upper left door panel horizontal plate 6101, and the side of the lower horizontal plate 52 of the cabinet near the upper right door panel horizontal plate 6102 are respectively connected to the cabinet connecting part 13 in the top and bottom hinges 00.

[0099] Compared with the prior art, the top and bottom hinged door provided in this embodiment achieves at least the following beneficial effects:

[0100] First, the hinged door provided in this embodiment can not only effectively fix the door panel 6 and prevent it from shaking or deforming, but also further enhance the connection strength between the door panel 6 and the cabinet 5 through the magnetic force of the cabinet magnetic component 110 and the door panel magnetic component 210. At the same time, it can control the speed and force of opening and closing the door panel 6, making the door more stable and smooth during opening and closing. Especially in occasions where frequent opening and closing is required, the cylinder damper 7 can greatly reduce noise and vibration and improve the comfort of use.

[0101] Secondly, through the mutual coordination between the cabinet magnetic component 110, the door panel magnetic component 210, and the cylinder damper 7, the door can not only maintain its stability in emergency situations (such as fire or earthquake) and prevent injury caused by the shaking or sudden closing of the door panel 6, but also prevent the door from closing abruptly due to external impact, thereby protecting the safety of people and items. At the same time, the opening and closing of the door panel 6 is smoother and more stable, thus improving the overall user experience.

[0102] In one alternative embodiment, combined with Figure 13 , Figure 14 and Figure 15As shown, the cabinet hinge box 4 in the top and bottom hinge 00 connecting the upper horizontal plate 51 of the cabinet body near the left door panel vertical plate 621 and the left door panel vertical plate 621 near the upper door panel horizontal plate 610 is installed on the side of the upper horizontal plate 51 of the cabinet body near the upper door panel horizontal plate 610; the cabinet hinge box 4 in the top and bottom hinge 00 connecting the lower horizontal plate 52 of the cabinet body near the left door panel vertical plate 621 and the left door panel vertical plate 621 near the lower door panel horizontal plate 611 is installed on the side of the lower horizontal plate 52 of the cabinet body near the lower door panel horizontal plate 611. The cabinet hinge box 4 is installed on the side of the upper horizontal plate 51 of the cabinet near the side of the right door panel vertical plate 622 and the side of the right door panel vertical plate 622 near the side of the upper door panel horizontal plate 610. The cabinet hinge box 4 is installed on the side of the upper horizontal plate 51 of the cabinet near the side of the upper door panel horizontal plate 610. The cabinet hinge box 4 is installed on the side of the lower horizontal plate 52 of the cabinet near the side of the right door panel vertical plate 622 and the side of the right door panel vertical plate 622 near the side of the lower door panel horizontal plate 611.

[0103] In the above solution, cabinet horizontal plate grooves 510 matching the cabinet hinge box 4 are respectively provided on the left and right ends of the upper horizontal plate 51 of the cabinet body near the door horizontal plate 61 and the left and right ends of the lower horizontal plate 52 of the cabinet body near the door horizontal plate 61. The cabinet horizontal plate grooves 510 are recessed towards the center line of the upper horizontal plate 51 and the lower horizontal plate 52 of the cabinet body. The shape of the cabinet horizontal plate grooves 510 is a U-shaped groove. The opening of the U-shaped groove faces the door vertical plate 62. The cabinet hinge box 4 is located in the cabinet horizontal plate grooves 510. By adopting the above solution, the cabinet hinge box 4 is hidden in the cabinet horizontal plate grooves 510. The cabinet connection part 13 cannot be seen from the outside of the door plate 6 and the outside of the cabinet body 5, thus achieving a neat and beautiful appearance. The above solution not only meets the requirements of concealed installation, but also ensures the load-bearing capacity and stability of the hinge, and can also improve the aesthetics of the top and bottom hinge door.

[0104] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A top and bottom hinge for a cabinet, characterized in that, It includes cabinet hinges and door hinges arranged opposite to each other. The cabinet hinges and door hinges are respectively installed on the cabinet and the door, respectively. A connecting pivot passes through the door hinge, and its head and tail are respectively rotatably connected to the cabinet hinge. The cabinet hinge includes a cabinet contact part, a cabinet bending part, and a cabinet connecting part connected in sequence. The cabinet contact part has a C-shaped structure, with the opening of the C-shaped structure facing the door hinge side. The cabinet bending part has an L-shaped structure, with the opening of the cabinet bending part facing the cabinet side. The cabinet connecting part has a rectangular structure, extending away from the cabinet bending part. A cabinet stamping component pivot is provided on the side of the cabinet connecting part away from the cabinet bending part, and the cabinet stamping component pivot is rotatably connected to the stamping component. At least two cabinet magnetic components are provided on the side of the cabinet contact portion near the cabinet bending portion. The at least two cabinet magnetic components are arranged side by side along the height direction of the cabinet contact portion. The cabinet magnetic components are cylindrical. A cabinet damping groove is provided on the side of the cabinet contact portion near the door hinge. The cabinet damping groove is recessed away from the cabinet connection portion. The cabinet damping groove is a circular groove. A cabinet pivot hole is provided on the side of the cabinet contact portion away from the cabinet bending portion, and the cabinet pivot hole penetrates the cabinet contact portion along the height direction of the cabinet contact portion; The door panel hinge includes a door panel contact portion and a door panel connecting portion connected to the door panel contact portion. The door panel contact portion has an U-shaped structure, and the opening of the U-shaped structure of the door panel contact portion faces the opening of the U-shaped structure of the cabinet contact portion. The door panel connecting portion is disposed on the side away from the opening of the U-shaped structure of the door panel contact portion. The door panel connecting portion has an elongated structure and extends along the height direction of the door panel contact portion. A door panel magnetic component matching the cabinet magnetic component is provided on the side of the door panel contact portion near the door panel connection portion. Along the direction from the door panel hinge to the cabinet hinge, the orthographic projection of the door panel magnetic component overlaps with the orthographic projection of the door panel connection portion. A door panel damping hole corresponding to the cabinet damping groove is provided on the door panel contact portion. The door panel damping hole is circular, and its diameter is larger than the diameter of the cabinet damping groove. The elastic extension end of the cylinder damper passes through the door panel damping hole and contacts the cabinet damping groove. The cylinder damper reciprocates along the direction from the door panel damping hole to the cabinet damping groove. Along the height direction of the door panel contact portion, the door panel contact portion includes an upper door panel contact section and a lower door panel contact section disposed opposite to each other. A door panel contact connecting section connects the upper door panel contact section and the lower door panel contact section. The upper door panel contact section, the door panel contact connecting section, and the lower door panel contact section together form the U-shaped structure of the door panel contact portion. Door panel pivot holes corresponding to the cabinet pivot holes are opened on the upper door panel contact section and the lower door panel contact section, respectively, in the direction from the upper door panel contact section to the lower door panel contact section. The connecting pivot passes through the door panel pivot hole, the cabinet pivot hole, and the door panel pivot hole of the upper door panel contact section in sequence. The hinge is configured to include a first state and a second state. In the first state, the cabinet magnetic component and the door panel magnetic component are separated, and the cabinet magnetic component and the door panel magnetic component are located on opposite sides of the connecting shaft along the direction from the cabinet hinge to the door panel hinge. In the second state, the cabinet magnetic component and the door panel magnetic component are magnetically attracted to each other.

2. The top and bottom hinge for a cabinet according to claim 1, characterized in that, The cabinet contact portion includes a front contact section, a connecting section, and a rear contact section. The front contact section, the connecting section, and the rear contact section form an U-shaped structure of the cabinet contact portion. The cabinet pivot hole is located in the front contact section. Along the direction from the door hinge to the cabinet hinge, the thickness of the connecting section near the rear contact section is greater than the thickness of the connecting section near the front contact section.

3. The top and bottom hinge for a cabinet according to claim 2, characterized in that, Along the direction from the door hinge to the cabinet hinge, a cabinet magnetic groove matching the cabinet magnetic component is provided on the side of the cabinet contact connection section near the rear section of the cabinet contact. The cabinet magnetic groove is recessed away from the door hinge, and the cabinet magnetic component is located in the cabinet magnetic groove. Along the direction from the cabinet hinge to the door hinge, a magnetic through-hole matching the magnetic component of the door panel is provided on the side of the door panel contact connection section near the door panel connection part. The magnetic through-hole penetrates the door panel contact connection section, and the magnetic component of the door panel is located inside the magnetic through-hole. The orthographic projection of the magnetic through-hole overlaps with the orthographic projection of the door panel connection part along the direction from the cabinet hinge to the door hinge.

4. The top and bottom hinge for a cabinet according to claim 3, characterized in that, The two magnetic grooves in the cabinet and the damping groove in the cabinet, as well as the two magnetic through holes in the door panel and the damping holes in the door panel, form a triangular structure.

5. The top and bottom hinge for a cabinet according to claim 2, characterized in that, Along the direction from the cabinet hinge to the door hinge, the orthographic projection of the front section of the cabinet contact and the orthographic projection of the cabinet contact connecting section are located within the orthographic projection of the door contact connecting section; Along the direction from the upper contact section of the door panel to the lower contact section of the door panel, the orthographic projection of the front contact section of the cabinet body and the orthographic projection of the connecting section of the cabinet body are located within the orthographic projection of the upper contact section of the door panel.

6. The top and bottom hinge for a cabinet according to claim 2, characterized in that, The door panel connecting part includes a door panel connecting vertical section and a door panel connecting contact section connected to the door panel connecting vertical section. The door panel connecting contact section is located above the door panel connecting vertical section. The door panel connecting vertical section has a rectangular structure, and the door panel connecting contact section has a right-angled triangle. The hypotenuse of the right-angled triangle is away from the side of the door panel connecting contact section.

7. The top and bottom hinge for a cabinet according to claim 1, characterized in that, It also includes a cabinet hinge box, which includes a shell, a stamped part, a cabinet hinge connector and a hinge cover; The outer shell is a hollow rectangular structure with an opening at one end, the opening of the outer shell facing the cabinet connecting part. A stamped part is fitted inside the outer shell. The stamped part is a C-shaped structure, the opening of the C-shaped structure of the stamped part facing the door panel. The cabinet connecting part is inserted into the stamped part. The side of the outer shell near the door panel is closed with the hinge cover. The side of the hinge cover away from the hinge cover is connected to the cabinet hinge connector.

8. The top and bottom hinge for a cabinet according to claim 1, characterized in that, The cabinet hinges and door hinges are made of metal.

9. A hinged door with top and bottom hinges, characterized in that, The system includes a cabinet body and door panels. The cabinet body includes an upper horizontal panel and a lower horizontal panel arranged in parallel with each other. The upper horizontal panel and the lower horizontal panel are both hollow rectangular structures. The door panels include a horizontal panel and a vertical panel. Both the horizontal panel and the vertical panel are hollow rectangular structures. The length extension direction of the horizontal panel is perpendicular to the length extension direction of the vertical panel, and the length extension direction of the horizontal panel is parallel to the length extension direction of the upper horizontal panel. The door panel horizontal plate includes an upper door panel horizontal plate and a lower door panel horizontal plate arranged in parallel with each other, and the door panel vertical plate includes a left door panel vertical plate and a right door panel vertical plate arranged in parallel with each other; The upper door panel horizontal plate near the left door panel vertical plate and the left door panel vertical plate near the upper door panel horizontal plate; the lower door panel horizontal plate near the left door panel vertical plate and the left door panel vertical plate near the lower door panel horizontal plate; the upper door panel horizontal plate near the right door panel vertical plate and the right door panel vertical plate near the upper door panel horizontal plate and the lower door panel horizontal plate near the right door panel vertical plate; the right door panel vertical plate near the lower door panel horizontal plate; the upper cabinet horizontal plate near the left door panel vertical plate. The left door panel vertical plate near the upper door panel horizontal plate, the lower cabinet horizontal plate near the left door panel vertical plate and the left door panel vertical plate near the lower door panel horizontal plate, the upper cabinet horizontal plate near the right door panel vertical plate and the right door panel vertical plate near the upper door panel horizontal plate, and the lower cabinet horizontal plate near the right door panel vertical plate and the right door panel vertical plate near the lower door panel horizontal plate are respectively connected by top and bottom hinges, wherein the top and bottom hinges are the top and bottom hinges for cabinets as described in any one of claims 1-8.

10. The hinged door according to claim 9, characterized in that, The cabinet hinge box in the top and bottom hinge connecting the upper horizontal plate of the cabinet near the left door panel vertical plate and the left door panel vertical plate near the upper horizontal plate is installed on the upper horizontal plate of the cabinet near the upper door panel horizontal plate. The cabinet hinge box in the top and bottom hinge connecting the lower horizontal plate of the cabinet near the left door panel vertical plate and the left door panel vertical plate near the lower horizontal plate is installed on the lower horizontal plate of the cabinet near the lower door panel horizontal plate. The cabinet hinge box in the top and bottom hinge connecting the upper horizontal plate of the cabinet near the vertical plate of the right door panel and the vertical plate of the right door panel near the upper horizontal plate is installed on the upper horizontal plate of the cabinet near the horizontal plate of the upper door panel. The cabinet hinge box, which connects the lower horizontal panel of the cabinet to the right door panel vertical panel and the right door panel vertical panel to the lower horizontal panel, is installed on the lower horizontal panel of the cabinet.

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