Vertical refrigerator hinge

Abstract

The utility model relates to a vertical refrigerator hinge which solves the problems that an existing vertical refrigerator is large in impact noise and inconvenient to use when a door is closed. Comprising a shell and a hinged shaft, the shell and the hinged shaft are rotationally connected through a damping mechanism, the damping mechanism comprises a guide part, an eccentric cam and a spring assembly, a guide rail is arranged on the guide part and comprises an inwards-concave cambered surface and an outwards-convex cambered surface connected with the inwards-concave cambered surface, and a roller is arranged on the eccentric cam. In the use process, the shell and the box door are installed, the hinged shaft and the box body are installed, the box door rotates to drive the eccentric cam to rotate, the idler wheel on the eccentric cam rotates along the guide rail of the guide piece, and the spring assembly pushes the idler wheel on the eccentric cam to abut against the guide rail on the guide piece. The spring assembly drives the roller to roll along the inner concave cambered surface, the box door is automatically closed, so that the box door can be automatically closed within a certain angle, the closing noise is low, and when the roller is located on the outer convex cambered surface, the box door is suspended, so that the use is convenient.

Description

Technical Field

[0001] The utility model relates to a hinge for a vertical refrigerator. Background Art

[0002] At present, a certain amount of force is usually required to close the door of an upright refrigerator, which causes a lot of impact noise when the door is closed. If less force is used, the door of the refrigerator is easy to not close tightly, thus affecting the preservation of food in the refrigerator. Utility Model Content

[0003] The utility model aims to solve the problems of large impact noise and inconvenience in use of the existing upright refrigerator when the door is closed.

[0004] The technical solution adopted to solve the technical problem proposed by the utility model is as follows: the hinge of the upright refrigerator of the utility model includes a shell for installation with the door and a hinge shaft installed with the box body, the shell and the hinge shaft are rotatably connected by a damping mechanism, the damping mechanism includes a guide member and an eccentric cam, the guide member is fixed on the hinge shaft, the eccentric cam is rotatably arranged on the shell through the eccentric cam rotating shaft, the guide member is provided with a guide track, the guide track includes an inner concave arc surface and an outer convex arc surface connected to the inner concave arc surface, the eccentric cam is provided with a roller, the damping mechanism also includes a spring component that pushes the roller to abut against the guide track when rotating, the spring component is arranged on the shell, when the roller is located on the inner concave arc surface, the spring component drives the roller to roll along the inner concave arc surface, and the box door is automatically closed, and when the roller is located on the outer convex arc surface, the box door is suspended.

[0005] The technical solutions further defining the utility model include:

[0006] The spring assembly includes a spring and a telescopic guide rod, the tail end of the telescopic guide rod is rotatably connected to the shell through the first guide rod rotating shaft, the head end of the telescopic guide rod is rotatably connected to the eccentric cam through the second guide rod rotating shaft, the tail end of the spring is connected to the tail end of the telescopic guide rod, and the head end of the spring abuts against the head end of the telescopic guide rod.

[0007] The telescopic guide rod includes a guide column and a guide sleeve, the head end of the guide sleeve is rotatably connected to the second rotating shaft of the guide rod, the tail end of the guide column is provided with a guide rod mounting frame, the guide rod mounting frame is rotatably connected to the first rotating shaft of the guide rod, the head end of the guide column is inserted into the guide sleeve, the guide column and the guide sleeve are slidably connected, the spring is sleeved on the telescopic guide rod, and the guide sleeve is provided with a stop platform abutting against the spring.

[0008] The eccentric cam is a triangular structure, and the three corners of the triangular structure are all arc angles. The eccentric cam shaft, roller and guide rod shaft are respectively located on the three corners of the triangular structure, and the spring abuts against the outer periphery of the triangular structure.

[0009] The telescopic guide rod is made of plastic material, and the eccentric cam is made of metal material.

[0010] The shell is a U-shaped structure, and both sides of the U-shaped structure are provided with hinge shaft holes that cooperate with the hinge shaft. Two eccentric cams are provided, and the roller is located between the two eccentric cams. The eccentric cam rotating shaft passes through the two eccentric cams, and the two ends of the eccentric cam rotating shaft are respectively fixedly connected to the two sides of the U-shaped structure, and the two ends of the guide rod first rotating shaft and the guide rod second rotating shaft are respectively fixedly connected to the two sides of the U-shaped structure.

[0011] A wear-resistant shock-absorbing sleeve is provided on each hinge shaft hole, and the hinge shaft is rotatably connected to the outer shell through the wear-resistant shock-absorbing sleeve provided on the hinge shaft hole. The guide member is located between the two wear-resistant shock-absorbing sleeves. A first wear-resistant shock-absorbing pad is provided on the eccentric cam rotating shaft between the eccentric cam and the outer shell, and a second wear-resistant shock-absorbing pad is provided on the guide rod second rotating shaft between the guide rod and the outer shell.

[0012] The hinge shaft is provided with a half-moon shaped positioning platform, and the guide piece is provided with a positioning hole matched with the half-moon shaped positioning platform.

[0013] Through the above technical scheme, the beneficial effects of the utility model are as follows: when the upright refrigerator hinge of the utility model is used, the outer shell is installed on the door, and the hinge shaft is installed on the box body. When the door rotates, the eccentric cam is driven to rotate, and the roller on the eccentric cam rotates along the guide track of the guide member. The spring assembly pushes the roller on the eccentric cam to abut against the guide track on the guide member. When the roller is located on the concave arc surface, the spring assembly drives the roller to roll along the concave arc surface, and the door is automatically closed, so that the door can be automatically closed within a certain angle with low closing noise. When the roller is located on the convex arc surface, the door is suspended, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a vertical refrigerator hinge.

[0015] Figure 2 The utility model is a structural schematic diagram of a vertical refrigerator hinge when the door is in a closed state.

[0016] Figure 3 The utility model is a schematic diagram of the exploded structure of a vertical refrigerator hinge.

[0017] Figure 4 The utility model is a structural schematic diagram of a vertical refrigerator hinge in which a roller is located at the junction of an inner concave arc surface and an outer convex arc surface.

[0018] Figure 5 The utility model is a structural schematic diagram of a vertical refrigerator hinge when the door is opened to the maximum angle. DETAILED DESCRIPTION

[0019] The structure of the utility model is further described below in conjunction with the accompanying drawings.

[0020] Reference Figures 1 to 5 A vertical refrigerator hinge includes a shell 1 for installation with a door and a hinge shaft 2 installed with a box body. The shell and the hinge shaft are rotatably connected through a damping mechanism 3. The damping mechanism 3 includes a guide member 31 and an eccentric cam 32. The guide member 31 is fixed on the hinge shaft. The eccentric cam 32 is rotatably arranged on the shell through an eccentric cam rotating shaft 34. A guide track 311 is provided on the guide member 31. The guide track 311 includes an inner concave arc surface 3111 and an outer convex arc surface 3112 connected to the inner concave arc surface. A roller 321 is provided on the eccentric cam. The damping mechanism also includes a spring assembly 33 for pushing the roller to abut against the guide rail when rotating. The spring assembly is arranged on the shell. When the roller is located on the inner concave arc surface, the spring assembly drives the roller to roll along the inner concave arc surface, and the box door is automatically closed. When the roller is located on the outer convex arc surface, the box door is suspended. When in use, the housing is installed with the door, and the hinge shaft is installed with the box body. When the door rotates, the eccentric cam is driven to rotate, and the roller on the eccentric cam rotates along the guide track of the guide member. The spring assembly pushes the roller on the eccentric cam to abut against the guide track on the guide member. When the roller is located on the concave arc surface, the spring assembly drives the roller to roll along the concave arc surface, and the door is automatically closed, so that the door can be automatically closed within a certain angle, and the closing noise is small. When the roller is located on the convex arc surface, the door is suspended, which is convenient to use. In this embodiment, a half-moon shaped positioning platform 21 is provided on the hinge shaft 2, and a positioning hole matching the half-moon shaped positioning platform is provided on the guide member 31. Thereby, the guide member is fixedly connected to the hinge shaft. In this embodiment, when the angle between the door and the box body is 45 degrees, the roller is located at the junction of the concave arc surface and the convex arc surface, that is, when the angle between the door and the box body is less than 45 degrees, the door is automatically closed. When the door opening angle is greater than 45 degrees, the roller is located on the convex arc surface, and the door is in a suspended state. In actual use, the maximum opening angle of the door can be limited as needed. In this embodiment, the maximum angle is 140 degrees.

[0021] In this embodiment, the spring assembly 33 includes a spring 331 and a telescopic guide rod 332, the tail end of the telescopic guide rod is rotatably connected to the housing through the guide rod first rotating shaft 333, the head end of the telescopic guide rod 332 is rotatably connected to the eccentric cam through the guide rod second rotating shaft 334, the tail end of the spring 331 is connected to the tail end of the telescopic guide rod, and the head end of the spring abuts against the head end of the telescopic guide rod. In this embodiment, the telescopic guide rod 332 includes a guide post 3321 and a guide sleeve 3322, the head end of the guide sleeve is rotatably connected to the guide rod second rotating shaft, the tail end of the guide post 3321 is provided with a guide rod mounting frame 33211, the guide rod mounting frame is rotatably connected to the guide rod first rotating shaft, the head end of the guide post is inserted into the guide sleeve, the guide post is slidably connected to the guide sleeve, the spring is sleeved on the telescopic guide rod, and the guide sleeve 3322 is provided with a stopper 33221 abutting against the spring. When the door rotates, the eccentric cam is driven to rotate, the eccentric cam drives the roller and the telescopic guide rod to rotate, and the spring drives the roller to contact the guide track. The telescopic guide rod is extended and retracted under the action of the spring, and the spring is guided by the telescopic guide rod to extend and retract stably without distortion.

[0022] In this embodiment, the eccentric cam 32 is a triangular structure, and the three corners of the triangular structure are all arc angles. The eccentric cam shaft, roller and guide rod shaft are respectively located at the three corners of the triangular structure, and the spring abuts against the outer periphery of the triangular structure. Therefore, during the rotation process, the spring abuts against the outer periphery of the eccentric cam, and the eccentric cam can share part of the pressure of the spring. Prevent the spring from crushing the telescopic guide rod. In this embodiment, the telescopic guide rod is made of plastic material, and the eccentric cam is made of metal material. Therefore, the collision noise during the rotation overshoot can be reduced.

[0023] In this embodiment, the housing 1 is a U-shaped structure, both sides of the U-shaped structure are provided with hinge holes 11 that match the hinge shaft, two eccentric cams are provided, the roller is located between the two eccentric cams, the eccentric cam shaft passes through the two eccentric cams, the two ends of the eccentric cam shaft are respectively fixedly connected to the two sides of the U-shaped structure, and the two ends of the first guide rod shaft and the second guide rod shaft are respectively fixedly connected to the two sides of the U-shaped structure. Thus, the overall structure is firm.

[0024] In this embodiment, a wear-resistant and shock-absorbing sleeve 12 is provided on each hinge shaft hole 11, and the hinge shaft is rotatably connected to the outer shell through the wear-resistant and shock-absorbing sleeve provided on the hinge shaft hole. The guide member is located between the two wear-resistant and shock-absorbing sleeves. A first wear-resistant and shock-absorbing pad 13 is provided on the eccentric cam rotating shaft between the eccentric cam and the outer shell, thereby reducing the vibration noise of the eccentric cam and the outer shell during rotation. A second wear-resistant and shock-absorbing pad 14 is provided on the second rotating shaft of the guide rod between the guide rod and the outer shell, thereby reducing the vibration noise of the guide rod and the outer shell during rotation.

[0025] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the protection scope of the utility model. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still belong to the protection scope of the utility model.

Claims

1. A vertical refrigerator hinge, the hinge comprising a housing for mounting on a door and a hinge shaft mounted on a refrigerator body, the housing and the hinge shaft being rotationally connected via a damping mechanism, characterized in that: The damping mechanism includes a guide member and an eccentric cam, the guide member is fixed on the hinge shaft, the eccentric cam is rotatably arranged on the outer shell through the eccentric cam shaft, the guide member is provided with a guide track, the guide track includes an inner concave arc surface and an outer convex arc surface connected to the inner concave arc surface, the eccentric cam is provided with a roller, and the damping mechanism also includes a spring assembly that pushes the roller to abut against the guide track when rotating, and the spring assembly is arranged on the outer shell, when the roller is located on the inner concave arc surface, the spring assembly drives the roller to roll along the inner concave arc surface, and the box door is automatically closed, and when the roller is located on the outer convex arc surface, the box door is suspended.

2. A vertical refrigerator hinge according to claim 1, characterized in that: The spring assembly includes a spring and a telescopic guide rod, the tail end of the telescopic guide rod is rotatably connected to the shell through the first guide rod rotating shaft, the head end of the telescopic guide rod is rotatably connected to the eccentric cam through the second guide rod rotating shaft, the tail end of the spring is connected to the tail end of the telescopic guide rod, and the head end of the spring abuts against the head end of the telescopic guide rod.

3. A vertical refrigerator hinge as claimed in claim 2, characterized in that: The telescopic guide rod includes a guide column and a guide sleeve, the head end of the guide sleeve is rotatably connected to the second rotating shaft of the guide rod, the tail end of the guide column is provided with a guide rod mounting frame, the guide rod mounting frame is rotatably connected to the first rotating shaft of the guide rod, the head end of the guide column is inserted into the guide sleeve, the guide column and the guide sleeve are slidably connected, the spring is sleeved on the telescopic guide rod, and the guide sleeve is provided with a stop platform abutting against the spring.

4. A vertical refrigerator hinge according to claim 2, characterized in that: The eccentric cam is a triangular structure, and the three corners of the triangular structure are all arc angles. The eccentric cam shaft, roller and guide rod shaft are respectively located on the three corners of the triangular structure, and the spring abuts against the outer periphery of the triangular structure.

5. A vertical refrigerator hinge as claimed in claim 4, characterized in that: The telescopic guide rod is made of plastic material, and the eccentric cam is made of metal material.

6. The vertical refrigerator hinge according to claim 2, characterized in that: The shell is a U-shaped structure, and both sides of the U-shaped structure are provided with hinge shaft holes that cooperate with the hinge shaft. Two eccentric cams are provided, and the roller is located between the two eccentric cams. The eccentric cam rotating shaft passes through the two eccentric cams, and the two ends of the eccentric cam rotating shaft are respectively fixedly connected to the two sides of the U-shaped structure, and the two ends of the guide rod first rotating shaft and the guide rod second rotating shaft are respectively fixedly connected to the two sides of the U-shaped structure.

7. A vertical refrigerator hinge according to claim 6, characterized in that: A wear-resistant shock-absorbing sleeve is provided on each hinge shaft hole, and the hinge shaft is rotatably connected to the outer shell through the wear-resistant shock-absorbing sleeve provided on the hinge shaft hole. The guide member is located between the two wear-resistant shock-absorbing sleeves. A first wear-resistant shock-absorbing pad is provided on the eccentric cam rotating shaft between the eccentric cam and the outer shell, and a second wear-resistant shock-absorbing pad is provided on the guide rod second rotating shaft between the guide rod and the outer shell.

8. The hinge for an upright refrigerator according to claim 1, characterized in that: The hinge shaft is provided with a half-moon shaped positioning platform, and the guide piece is provided with a positioning hole matched with the half-moon shaped positioning platform.

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