Back-mounted damping hinge

Abstract

The utility model discloses a back-mounted damping hinge which comprises a hinge cup body and a hinge main body which are movably connected, the hinge cup body and the hinge main body are connected through a swing assembly, and the hinge cup body and the hinge main body can rotate relatively through the swing assembly. A containing cavity is formed in the back face of the hinge body, a spring assembly and a damping assembly are installed in the containing cavity, and one end of the spring assembly penetrates through the front end of the containing cavity, is located on the outer side of the containing cavity and is connected with a swing assembly. When the hinge cup body is driven by external force to swing relative to the hinge body, coaxial transmission between the spring assembly and the damping assembly can be achieved through stretching and retracting, and the damping assembly buffers relative swing between the spring assembly and the damping assembly. The hinge adopts modular design, part of the structure adopts a back mounting arrangement mode, the structure is simple and compact, mounting, dismounting and replacement are convenient, the exposed part is attractive, and the hinge has bidirectional buffering capacity and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a back-mounted damping hinge. Background Art

[0002] At present, wardrobes and cabinets have become an indispensable part of life. The doors of wardrobes and cabinets are mostly connected to the cabinet body by hinges, and the more common one is the damping hinge, that is, a damper is installed between two movable parts of the hinge, and the damper is used to prevent the impact generated when closing the door panel. And in some hinges, a torsion spring is usually installed so that the damper can slowly extend or retract automatically, realizing the slow automatic closing of the door body. However, the added torsion spring will increase the overall size of the hinge, improve the complexity of the structure, make the hinge appear thick and heavy as a whole, and the service life of the used torsion spring is short, affecting the service life of the whole hinge. The invention patent with the publication number CN112020592B discloses a hinge for mounting a door on a furniture piece, etc. The hinge includes: a hinge arm; a box connected to the hinge arm through a hinge system, the hinge system including a plurality of movable connecting rods and seven hinge axes; a spring device acting in the closing direction of the hinge; and a damping device having an actuating member that can linearly move along a longitudinal axis; the damping device is at least partially surrounded between the side walls of the hinge arm, and the actuating member of the damping device extends at the front end of the hinge arm facing the hinge box for contacting a thrust element, the thrust element being a thrust element of one of the connecting rods of the hinge system or being integral with one of the connecting rods of the same connecting rod, or the thrust element being integral with the hinge box at least in the range close to the closing position of the hinge. However, this structure is relatively complex, the number of parts is large, the overall structure is relatively long, and the assembly is relatively cumbersome. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a back-mounted damping hinge. The hinge adopts a modular design, and some structures adopt a back-mounted layout. The structure is simple and compact, which is convenient for installation, disassembly and replacement. The exposed part has good aesthetics, and it has the ability of two-way buffering, and has strong practicability.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A back-mounted damping hinge comprises a hinge cup body and a hinge body which are movably connected, wherein the hinge cup body and the hinge body are connected via a swinging assembly, and the hinge cup body and the hinge body can rotate relative to each other via the swinging assembly; a receiving cavity is provided on the back of the hinge body, and a spring assembly and a damping assembly are installed in the receiving cavity; the spring assembly and the damping assembly are naturally in contact and can realize direct transmission without relying on other connecting parts; one end of the spring assembly passes through the front end of the receiving cavity and is located outside the receiving cavity and is connected to the swinging assembly; when an external force is used to drive the hinge cup body to swing relative to the hinge body, the spring assembly can realize coaxial transmission with the damping assembly through telescoping, and the damping assembly buffers the relative swing between the two.

[0006] Preferably, the swing assembly includes a first connecting rod, a second connecting rod and a adapter, both ends of the first connecting rod and the second connecting rod are respectively hingedly mounted on the hinge cup body and the hinge body, one end of the adapter is hingedly connected to the first connecting rod, and the other end of the adapter is hingedly connected to the protruding end of the damping assembly, driving the spring assembly to extend or retract during the swinging of the first connecting rod.

[0007] Preferably, the spring assembly includes a connecting shaft installed at one end of the hydraulic damper and a spring sleeved on the connecting shaft, and one end of the connecting shaft passes through the front end of the accommodating cavity and is hingedly connected to the adapter; when the hinge cup body and the hinge body swing relative to each other, the spring assembly realizes coaxial transmission with the damping assembly through telescoping, and the piston rod in the hydraulic damper extends or retracts.

[0008] Preferably, the accommodating cavity is a rectangular groove integrally provided on the back of the hinge body, a blocking portion is installed on one side of the rectangular groove, a through hole is provided on the blocking portion, and one end of the spring assembly passes through the through hole.

[0009] Preferably, mounting holes are provided on the hinge cup body and the hinge main body, and fasteners are used to pass through the mounting holes to mount and fix the hinge cup body and the hinge main body.

[0010] In the utility model, the hinge adopts a modular design as a whole, and some structures are arranged in a back-mounted manner, which is convenient for installation and removal and replacement, and the exposed part has good aesthetics and a strong user experience. The spring component and damping component can achieve a two-way buffering effect, making the door opening and closing process smoother and more natural. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the utility model;

[0013] In the figure: 1, hinge cup body; 2, hinge main body; 3, swing assembly; 4, accommodation cavity; 5, spring assembly; 6, blocking portion; 7, mounting hole; 31, first connecting rod; 32, second connecting rod; 33, adapter; 50, hydraulic damper; 51, connecting shaft; 52, spring. Detailed implementation manner

[0014] The following further describes the present utility model in conjunction with the accompanying drawings:

[0015] As Figure 1 and Figure 2 shown, a back-mounted damping hinge includes a hinge cup body 1 and a hinge main body 2 that are movably connected. The hinge cup body 1 and the hinge main body 2 are connected by a swing assembly 3, and the hinge cup body 1 and the hinge main body 2 can rotate relative to each other through the swing assembly 3. In one embodiment, the swing assembly 3 includes a first connecting rod 31, a second connecting rod 32, and an adapter 33. Both ends of the first connecting rod 31 and the second connecting rod 32 are respectively hinged and installed on the hinge cup body 1 and the hinge main body 2. One end of the adapter 33 is hinged to the first connecting rod 31, and the other end of the adapter 33 is hinged to the extended end of the damping assembly. During the swinging process of the first connecting rod 31, the extended end of the damping assembly is driven to extend or retract, and the spring assembly 5 is elastically deformed. Specifically, three hinge holes are provided on the first connecting rod 31, two hinge holes are provided on the second connecting rod 32, and the hinge cup body 1, the hinge main body 2, the first connecting rod 31, and the second connecting rod 32 form a four-bar mechanism. When in use, the hinge main body 2 is fixed. When the first connecting rod 31 is pulled to swing through the adapter 33, the second connecting rod 32 also swings accordingly, thereby driving the hinge cup body 1 to swing. In specific implementation, the hinge cup body 1 is fixedly installed on the cabinet door, the hinge main body 2 is fixedly installed on the cabinet body, and the two swing limit positions of the hinge cup body 1 are perpendicular and parallel to the hinge main body 2 respectively, realizing the 90° opening and closing of the cabinet door. Of course, the swing angle of the second hinge unit 2 can also be greater than 90°, realizing the opening of the cabinet door greater than 90°.

[0016] Preferably, the accommodation cavity is a rectangular groove integrally provided on the back of the hinge main body. A blocking portion is installed on one side of the rectangular groove, and a through hole is provided on the blocking portion. One end of the spring assembly passes through the through hole.

[0017] Preferably, mounting holes are provided on both the hinge cup body and the hinge main body, and fasteners are used to pass through the mounting holes to install and fix the hinge cup body and the hinge main body.

[0018] A receiving cavity 4 is provided on the back surface of the hinge body 2. A spring assembly 5 and a damping assembly are installed in the receiving cavity 4. The spring assembly 5 and the damping assembly are in natural contact and can achieve direct transmission without relying on other connecting parts. One end of the spring assembly 5 passes through the front end of the receiving cavity 4 and is located outside the receiving cavity 4 and is connected to the swing assembly 3. When an external force is used to drive the hinge cup body 1 to swing relative to the hinge body 2, the spring assembly 5 can achieve coaxial transmission with the damping assembly through expansion and contraction, and the damping assembly buffers the relative swing between the two.

[0019] In one embodiment, the damping assembly includes a hydraulic damper 50. The spring assembly 5 includes a connecting shaft 51 installed at one end of the hydraulic damper 50 and a spring 52 sleeved on the connecting shaft 51. One end of the connecting shaft 51 passes through the front end of the receiving cavity 4 and is hinged to the adapter 33. When the hinge cup body 1 and the hinge body 2 swing relative to each other, the spring assembly 5 achieves coaxial transmission with the damping assembly through expansion and contraction, and the piston rod in the hydraulic damper 50 extends or retracts. Specifically, the hydraulic damper 50 includes a cylinder body, a piston movably installed in the cylinder body, a piston rod fixedly installed at the middle position of one end face of the piston, and an end cover hermetically installed at the end of the cylinder body through a seal. One end of the piston rod passes through the end cover and is located outside the cylinder body. An oil return hole is provided on the piston. The oil return hole includes a damping hole opened on the piston and a one-way valve fixedly installed on the piston. When the piston rod extends outwards, the one-way valve is in an open state, and at this time the spring 52 is in a compressed state. On the contrary, when the piston rod retracts inwards, the one-way valve is in a closed state, and at this time the spring 52 is in an elastic recovery state. Under the action of the elastic recovery force of the spring 52, the piston rod in a damping state slowly retracts inwards.

[0020] The receiving cavity 4 is an integrally provided rectangular groove on the back of the hinge body 2. A blocking portion 6 is installed on one side of the rectangular groove. A through hole is provided on the blocking portion 6. One end of the piston rod of the hydraulic damper 50 passes through and is located outside the receiving cavity 4. Specifically, mounting holes 7 are provided on both the hinge cup body 1 and the hinge body 2, and fasteners are used to pass through the mounting holes 7 to install and fix the hinge cup body 1 and the hinge body 2.

[0021] The above embodiments are only several descriptions of the concept and implementation of the present invention, and do not limit it. Under the concept of the present invention, technical solutions without substantial transformation are still within the protection scope.

Claims

1. A back-mounted damping hinge, comprising a hinge cup and a hinge body that are movably connected, characterized in that: The hinge cup body and the hinge main body are connected by a swinging assembly, and the hinge cup body and the hinge main body can rotate relative to each other through the swinging assembly; a receiving cavity is provided on the back side of the hinge main body, and a spring assembly and a damping assembly are installed in the receiving cavity, and the spring assembly and the damping assembly are naturally in contact and can realize direct transmission without relying on other connecting parts, and one end of the spring assembly passes through the front end of the receiving cavity and is located outside the receiving cavity and is connected to the swinging assembly; when an external force is used to drive the hinge cup body to swing relative to the hinge main body, the spring assembly can realize coaxial transmission with the damping assembly through telescope, and the damping assembly buffers the relative swing between the two.

2. The back-mounted damping hinge according to claim 1, characterized in that: The swing assembly includes a first connecting rod, a second connecting rod and a transition piece, both ends of the first connecting rod and the second connecting rod are respectively hingedly mounted on the hinge cup body and the hinge body, one end of the transition piece is hingedly connected to the first connecting rod, and the other end of the transition piece is hingedly connected to the protruding end of the damping assembly, driving the spring assembly to extend or retract during the swinging process of the first connecting rod.

3. The back-mounted damping hinge according to claim 2, characterized in that: The spring assembly includes a connecting shaft installed at one end of the hydraulic damper and a spring sleeved on the connecting shaft, one end of the connecting shaft passes through the front end of the accommodating cavity and is hingedly connected to the adapter; when the hinge cup body and the hinge body swing relative to each other, the spring assembly realizes coaxial transmission with the damping assembly through telescoping, and the piston rod in the hydraulic damper extends or retracts.

4. The back-mounted damping hinge according to claim 1, characterized in that: The accommodating cavity is a rectangular groove integrally arranged on the back of the hinge body, a blocking part is installed on one side of the rectangular groove, a through hole is arranged on the blocking part, and one end of the spring assembly passes through the through hole.

5. The back-mounted damping hinge according to claim 1 or 4, characterized in that: The hinge cup body and the hinge main body are both provided with mounting holes, and fasteners are used to pass through the mounting holes to mount and fix the hinge cup body and the hinge main body.

Images