A door hinge structure

Abstract

The application discloses a door hinge structure, which comprises a hinge seat assembly, the hinge seat assembly comprises a plate spring, a cam part and a hinge part, the plate spring is connected with the cam part, the hinge part is provided with a rivet, the cam part is connected with the rivet, and the hinge part is bent upwards to form a first connecting part; the hinge body assembly comprises a connecting part, a first plate and a second plate, the first plate is installed on the second plate through the connecting part, one side of the first plate is bent downwards to form a second connecting part, the second connecting part is connected with the first connecting part, the connecting part comprises a pressing outer part, a pressing inner part and a first elastic element, the pressing inner part is clamped in the first plate, the pressing outer part is installed in the second plate, and the pressing inner part is installed in the pressing outer part. The plate spring is adopted to replace the existing spring and the cam part, so that the contact area of the plate spring and the cam part is increased, and the abrasion between the plate spring and the cam part is reduced when the plate spring moves on the cam part.

Description

Technical Field

[0001] This invention relates to the field of door hinge structures in cabinet fittings, and more particularly to a door hinge structure. Background Technology

[0002] Door hinges are commonly used to connect cabinets to their doors, allowing the doors to rotate naturally to open or close. Therefore, door hinges experience repeated wear and tear during use, affecting their lifespan. When a door hinge is damaged, it needs to be disassembled and replaced to avoid affecting the cabinet's functionality. Existing door hinge structures typically consist of a hinge base, a hinge body, and a connecting arm. The hinge body includes multiple adjusting plates and adjusting screws, with each plate fixed together by these screws. This makes disassembly when the door hinge is damaged very inconvenient, thus increasing maintenance costs. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a door hinge structure with low maintenance costs.

[0004] According to a first aspect of the present invention, a door hinge structure includes a hinge base assembly, the hinge base assembly including a plate spring, a cam member, and a hinge member, the plate spring being slidably connected to the upper surface of the cam member, the hinge member being provided with a rivet, the cam member being connected to the rivet, and the hinge member being bent upward to form a first connecting portion; and a hinge body assembly, the hinge body assembly including a connector, a first plate, and a second plate, the first plate being mounted on the second plate via the connector, one side of the first plate being bent downward to form a second connecting portion, the second connecting portion being connected to the first connecting portion, the connector including a pressing outer member, a pressing inner member, and a first elastic element, the pressing inner member being engaged within the first plate, the pressing outer member being mounted within the second plate, the pressing inner member being mounted within the pressing outer member, the first elastic element being capable of driving the pressing inner member to extend and retract, and pressing the pressing inner member being capable of releasing the first plate and the second plate.

[0005] The door hinge structure according to embodiments of the present invention has at least the following technical effects:

[0006] By replacing the existing spring-loaded cam with a plate spring, the contact area between the plate spring and the cam is increased, thereby reducing wear caused by the plate spring moving on the cam and extending the service life of the hinge seat. This, in turn, reduces the maintenance cost of the door hinge structure. Furthermore, by connecting the first and second plates with a connector, operators can easily remove the hinge body from the hinge seat by pressing the outer component, further simplifying the maintenance of the door hinge structure.

[0007] According to some embodiments of the present invention, the outer side wall of the cam member extends outward to form a first locking protrusion, and the hinge member is provided with a first locking groove that cooperates with the first locking protrusion, and the first locking protrusion engages with the first locking groove.

[0008] According to some embodiments of the present invention, the cam member is provided with a second slot, and the hinge member extends outward to form a second protrusion, which engages with the second slot.

[0009] According to some embodiments of the present invention, the hinge assembly further includes a base and a bottom plate, the bottom plate being mounted on the base, the rivet being mounted inside the base, the bottom plate extending upward to form a third connecting portion, the third connecting portion being connected to the plate spring.

[0010] According to some embodiments of the present invention, the pressing inner component is provided with a first button portion, a first elastic element is installed in the first button portion, and second button portions are respectively provided on both sides of the first button portion. The second button portions are provided with second elastic elements, and the second elastic elements can drive the pressing inner component to extend and retract.

[0011] According to some embodiments of the present invention, the first plate is provided with a plurality of first through holes, the first button part can be locked in the first through hole, and the second button part can be locked in the first through hole.

[0012] According to some embodiments of the present invention, the inner pressing component is provided with a third protrusion, and the outer pressing component is provided with a third slot that mates with the third protrusion, and the third protrusion is connected to the third slot.

[0013] According to some embodiments of the present invention, the pressing outer part is provided with a fourth connecting part, which is connected to the second plate.

[0014] According to some embodiments of the present invention, the connector further includes a cover plate, which is bolted to the second plate. The cover plate is provided with a plurality of second through holes, the first button part being able to pass through the second through holes and be engaged in the first through hole, and the second button part being able to pass through the second through holes and be engaged in the first through hole.

[0015] According to some embodiments of the present invention, the second plate is provided with a fourth protrusion on both sides, and the first plate is provided with a guide groove on both sides that matches the fourth protrusion, and the fourth protrusion is slidably connected to the guide groove.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Additional aspects and advantages of the invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a door hinge structure according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the connection between the hinge component, the cam component, and the plate spring in a door hinge structure is shown.

[0020] Figure 3 This is an exploded view of the connectors in some embodiments;

[0021] Figure 4 This is an exploded view of the connectors in some embodiments;

[0022] Figure 5 for Figure 1 An enlarged view of a cam component in a door hinge structure is shown.

[0023] Figure label:

[0024] Plate spring 100, cam component 110, first locking protrusion 111, second locking groove 112, hinge component 120, first connecting part 121, first locking groove 122, second locking protrusion 123, rivet 130;

[0025] First plate 200, second connecting part 201, first through hole 202, guide groove 203, second plate 210, fourth protrusion 211, pressing outer part 220, third protrusion 221, fourth connecting part 222, pressing inner part 230, first button part 231, third slot 232, second button part 240;

[0026] Base 300, base plate 310, third connecting part 311;

[0027] Cover plate 400, second through hole 410. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] Reference Figures 1 to 5 As shown, a door hinge structure according to an embodiment of the present invention includes a hinge base assembly and a hinge body assembly. Figure 1 and Figure 2As shown, the hinge assembly includes a plate spring 100, a cam member 110, and a hinge member 120. The plate spring 100 is slidably connected to the cam member 110, allowing the plate spring 100 to slide along the upper surface of the cam member 110 as the hinge body rotates. By using the plate spring 100 instead of the existing spring, the contact area between the plate spring 100 and the cam member 110 is increased, thereby reducing the wear on the cam member 110 during the rotation of the hinge assembly, extending the service life of the hinge assembly, and thus reducing the maintenance cost of the door hinge structure. Figure 2 As shown, the hinge 120 is bent upward to form a first connecting portion 121, which is used to connect the hinge body assembly. The hinge 120 is provided with a rivet 130, and a cam 110 is mounted on the rivet 130 so that the cam 110 can rotate synchronously with the rivet 130.

[0030] like Figure 1 As shown, the hinge assembly includes a connector, a first plate 200, and a second plate 210. The first plate 200 is mounted on the second plate 210 via the connector. The connector includes a pressing outer part 220, a pressing inner part 230, and a first elastic element. The pressing inner part 230 is engaged within the first plate 200, the pressing outer part 220 is mounted within the second plate 210, the pressing inner part 230 is mounted within the pressing outer part 220, and the first elastic element is mounted within the pressing inner part 230. The first elastic element can drive the pressing inner part 230 to extend or retract. It should be noted that the first elastic element is not marked on the accompanying drawings. Pressing the pressing inner part 230 releases it from the first plate 200, thereby separating the first plate 200 and the second plate 210. By setting the outer pressing component 220, the inner pressing component 230, and the first elastic element to cooperate with each other, the connection method of the first plate 200 and the second plate 210 is simplified, thereby facilitating the disassembly of the first plate 200 and the second plate 210 and reducing maintenance costs. Figure 1 As shown, the first plate 200 is bent downward on one side to form the second connecting part 201. The second connecting part 201 is connected to the first connecting part 121. By setting the second connecting part 201 to connect the first connecting part 121, the hinge seat assembly and the hinge body assembly can be separated by disassembling the first plate 200 and the second plate 210, thereby reducing the maintenance difficulty of the door hinge structure.

[0031] In some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 5As shown, to improve the connection stability between the cam member 110 and the hinge member 120, the outer wall of the cam member 110 extends outward to form a first locking protrusion 111, and the hinge member 120 is provided with a first locking groove 122 that mates with the first locking protrusion 111. The first locking protrusion 111 engages with the first locking groove 122. Specifically, the first locking protrusion 111 can be located at the upper or lower part of the cam member 110, and the first locking groove 122 is provided at the corresponding mating position of the hinge member 120 with the first locking protrusion 111.

[0032] In a further embodiment of the present invention, such as Figure 1 and Figure 2 As shown, to further improve the connection stability between the cam member 110 and the hinge member 120, the cam member 110 is provided with a second slot 112, and the outer side wall of the hinge member 120 extends outward to form a second protrusion 123, which engages with the second slot 112. Specifically, the second protrusion 123 can be provided at the upper or lower part of the hinge member 120, and the second slot 112 is provided at the corresponding installation position of the second protrusion 123 on the cam member 110.

[0033] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, there are two cam components 110 and two plate springs 100. Each cam component 110 is installed at both ends of the rivet 130, thereby balancing the pressure on both ends of the rivet 130 when it is flipped and improving the stability of the rivet 130 when it is flipped, thereby improving the service life of the rivet 130.

[0034] In a further embodiment of the present invention, such as Figure 1 As shown, the hinge assembly also includes a base 300 and a base plate 310. The base plate 310 is mounted on the base 300, and the rivet 130 is installed inside the base 300. The base plate 310 extends upward to form a third connecting portion 311, which is connected to the plate spring 100. By providing the third connecting portion 311 and the base plate 310, the plate spring 100 can be tilted and connected to the cam member 110, thereby facilitating the movement of the plate spring 100 along the upper side wall of the cam member 110 during the hinge rotation process. Specifically, the base plate 310, the plate spring 100, and the third connecting portion 311 are integrally formed.

[0035] In some embodiments of the present invention, such as Figure 3 and Figure 4As shown, to facilitate operation, the pressing inner component 230 is provided with a first button portion 231. A first elastic element is installed inside the first button portion 231. Second button portions 240 are respectively provided on both sides of the first button portion 231. Each second button portion 240 has a second elastic element, which can drive the pressing inner component 230 to extend or retract. The first button portion 231 and the second button portion 240 can be integrally molded, thereby reducing production costs. It should be noted that the second elastic element is not marked in the accompanying drawings.

[0036] In a further embodiment of the present invention, such as Figure 1 , Figure 3 and Figure 4 As shown, to facilitate operation by pressing the first button 231 and the second button 240, the first plate 200 is provided with a plurality of first through holes 202. The number of first button 231 and the number of second button 240 can be adjusted according to the number of first button 231 and the number of second button 240. The first button 231 can be inserted into the first through hole 202, and the second button 240 can be inserted into the first through hole 202. By setting the first button 231, the second button 240 and the first through holes 202 to cooperate, the installation method of the first plate 200 and the second plate 210 is simplified, thereby reducing the difficulty of maintenance.

[0037] In some embodiments of the present invention, such as Figure 3 As shown, to improve the connection stability between the inner pressing component 230 and the outer pressing component 220, the inner pressing component 230 is provided with a third protrusion 221 at both ends, and the outer pressing component 220 is provided with a third slot 232 at both ends. The third protrusion 221 is connected to the third slot 232, thereby preventing the inner pressing component 230 from slipping out of the outer pressing component 220. Specifically, the third protrusion 221 can be provided on the two outer side walls or a single outer side wall of the inner pressing component 230, and the third slot 232 is correspondingly provided on the two outer side walls or a single outer side wall of the outer pressing component 220.

[0038] In a further embodiment of the present invention, such as Figure 4 As shown, to improve the stability of the connector installed on the second plate 210, the connector also includes a cover plate 400. The cover plate 400 is installed on the second plate 210 by bolts. The cover plate 400 is provided with a plurality of second through holes 410. The first button part 231 can pass through the second through hole 410 and be locked in the first through hole 202. The second button part 240 can pass through the second through hole 410 and be locked in the first through hole 202.

[0039] In some embodiments of the present invention, such as Figure 1As shown, to prevent the second plate 210 from falling off the first plate 200, the second plate 210 is provided with a fourth protrusion 211 on both sides, and the first plate 200 is provided with a guide groove 203 on both sides that matches the fourth protrusion 211. The fourth protrusion 211 is slidably connected to the guide groove 203, thereby improving the stability of the installation connection between the second plate 210 and the first plate 200.

[0040] In a further embodiment of the present invention, such as Figure 3 As shown, the outer pressing component 220 is provided with a fourth connecting portion 222, which is connected to the second plate 210. The fourth connecting portion 222 can be provided at the left and right ends and / or the front and rear ends of the outer pressing component 220, and is used to restrict the upward movement of the outer pressing component 220 and the inner pressing component 230.

[0041] In the description of this specification, references to terms such as "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A door hinge structure, characterized in that, include: A hinge assembly includes a plate spring (100), a cam (110), and a hinge (120). The plate spring (100) is slidably connected to the upper surface of the cam (110). The hinge (120) is provided with a rivet (130). The cam (110) is connected to the rivet (130). The hinge (120) is bent upward to form a first connecting part (121). The hinge assembly also includes a base (300) and a base plate (310). The base plate (310) is mounted on the base (300). The rivet (130) is installed inside the base (300). The base plate (310) extends upward to form a third connecting part (311). The third connecting part (311) is connected to the plate spring (100), so that the plate spring (100) is inclinedly connected to the cam (110). The hinge assembly includes a connector, a first plate (200) and a second plate (210). The first plate (200) is mounted on the second plate (210) via the connector. One side of the first plate (200) is bent downward to form a second connecting part (201). The second connecting part (201) is connected to the first connecting part (121). The connector includes a pressing outer part (220), a pressing inner part (230) and a first elastic element. The pressing inner part (230) is locked inside the first plate (200). The pressing outer part (220) is mounted inside the second plate (210). The pressing inner part (230) is mounted inside the pressing outer part (220). The first elastic element can drive the pressing inner part (230) to extend and retract. Pressing the pressing inner part (230) can release the first plate (200) and the second plate (210).

2. The door hinge structure according to claim 1, characterized in that: The outer side wall of the cam member (110) extends outward to form a first locking protrusion (111), and the hinge member (120) is provided with a first locking groove (122) that cooperates with the first locking protrusion (111). The first locking protrusion (111) is engaged in the first locking groove (122).

3. A door hinge structure according to claim 2, characterized in that: The cam member (110) is provided with a second slot (112), and the hinge member (120) extends outward to form a second protrusion (123), which engages with the second slot (112).

4. The door hinge structure according to claim 1, characterized in that: The pressing inner part (230) is provided with a first button part (231), the first elastic element is installed in the first button part (231), and a second button part (240) is provided on both sides of the first button part (231). The second button part (240) is provided with a second elastic element, and the second elastic element can drive the pressing inner part (230) to extend and retract.

5. A door hinge structure according to claim 4, characterized in that: The first plate (200) is provided with a plurality of first through holes (202), the first button part (231) can be locked in the first through hole (202), and the second button part (240) can be locked in the first through hole (202).

6. A door hinge structure according to claim 5, characterized in that: The inner pressing part (230) is provided with a third protrusion (221), and the outer pressing part (220) is provided with a third slot (232) that cooperates with the third protrusion (221). The third protrusion (221) is connected to the third slot (232).

7. A door hinge structure according to claim 1, characterized in that: The pressing outer part (220) is provided with a fourth connecting part (222), which is connected to the second plate (210).

8. A door hinge structure according to claim 6, characterized in that: The connector also includes a cover plate (400), which is bolted to the second plate (210). The cover plate (400) has a plurality of second through holes (410). The first button part (231) can pass through the second through hole (410) and be locked in the first through hole (202). The second button part (240) can pass through the second through hole (410) and be locked in the first through hole (202).

9. A door hinge structure according to claim 1, characterized in that: The second plate (210) is provided with a fourth protrusion (211) on both sides, and the first plate (200) is provided with a guide groove (203) on both sides that matches the fourth protrusion (211). The fourth protrusion (211) is slidably connected to the guide groove (203).

Images