Hinge capable of adjusting door opening amplitude

Abstract

The utility model provides a hinge capable of adjusting door opening amplitude, which comprises a mounting plate and a rotating device, the rotating device is rotatably connected to the mounting plate through a main shaft, the mounting plate is provided with a limit adjusting sheet, and the limit adjusting sheet is rotatably connected to the mounting plate, so that the limit adjusting sheet forms a first rotating baffle sheet or a second rotating baffle sheet; the rotating device is connected with the first rotating blocking piece while rotating around the main shaft, so that a first gear rotating angle is formed between the rotating device and the mounting frame, or the rotating device is connected with the second rotating blocking piece while rotating around the main shaft, so that a second gear rotating angle is formed between the rotating device and the mounting frame. The structure is simple, the rotating stability is high, the door opening amplitude can be adjusted, the applicability is high, and the using effect of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a hinge for adjusting the opening amplitude of a door. Background Art

[0002] Existing hinges are widely used in furniture and electrical appliances, especially refrigerators. A hinge is hinged between the box body and the door body. In order to enable the door body to automatically close when it is opened at a small angle, a power mechanism is installed on the hinge. The structure of the power mechanism can generally be selected in the following ways: 1. The magnetic strip method. A magnetic strip is installed on the door seal of the door body. When the user closes the door body at a certain angle, the door body is automatically closed through the suction force of the magnetic strip. However, the magnetic strip will reduce the sealing and heat preservation performance of the door seal, and the use effect is low. 2. The plastic hook type. When the door body is manually closed from the maximum opening angle to a certain angle, the hook of the plastic part contacts the convex edge of the hinge mounting plate. When the door is closed with more force, the plastic hook undergoes elastic deformation until it crosses the convex critical point. Under the action of the elastic restoring force of the plastic hook, the door body is driven to automatically close. However, the elasticity of the plastic hook is small, and the door body needs to be closed to a very small angle to achieve automatic closing. The operation is cumbersome, it is easy to wear, and it is easy to be damaged by impact. The use stability is poor and the service life is short. 3. The vertical spring drive type. When the door body is closed to a certain angle, the ejector pin crosses the critical point of the cam. Under the action of the elastic restoring force of the vertical spring, the ejector pin acts on the cam with a reaction force, causing the cam to rotate and drive the door body to automatically close.

[0003] However, no matter which structure of the power hinge mechanism has the following deficiencies in practical applications:

[0004] 1) The structure is complex, the cost is high, and during the rotation of the cam by the vertical force provided by the vertical spring, the vertical component force is offset, resulting in energy loss and low efficiency.

[0005] 2) It cannot adjust the opening amplitude, cannot meet different requirements, and has great limitations in use. Summary of the Utility Model

[0006] The invention purpose of the utility model is to overcome the deficiencies of the prior art, and provide a hinge for adjusting the opening amplitude of a door, which has a simple structure, high rotational stability, can adjust the opening amplitude, has high applicability, and improves the use effect of the product.

[0007] The invention object of the present utility model is achieved as follows: A hinge for adjusting the opening amplitude includes a mounting plate installed on a cabinet body and a rotating device installed on a door body. The rotating device is rotatably connected to the mounting plate through a main shaft. Among them, the mounting plate is provided with a limit adjusting piece for adjusting the rotation angle of the rotating device. The limit adjusting piece is rotatably connected to the mounting plate so that the limit adjusting piece forms a first rotating stop or a second rotating stop. While the rotating device rotates around the main shaft, it is connected to the first rotating stop, so that the rotating device and the mounting frame form a first-stage rotation angle, or while the rotating device rotates around the main shaft, it is connected to the second rotating stop, so that the rotating device and the mounting frame form a second-stage rotation angle.

[0008] Optimized according to the above, the limit adjusting piece includes a limit adjusting stop with a shaft hole. The mounting plate is provided with a first positioning hole and a second positioning hole. The positioning end of the limit adjusting stop is rotatably connected to the main shaft through the shaft hole. The adjusting end of the limit adjusting stop is provided with an adjusting column that can form a first rotating stop or a second rotating stop. The adjusting column is inserted into the first positioning hole or the second positioning hole.

[0009] Optimized according to the above, the adjusting end of the limit adjusting stop is provided with a limit convex edge that can form a first rotating stop. A connecting rod for the directional rotation of the rotating device is connected between the swinging end of the rotating device and the mounting plate. The outer edge of the connecting rod contacts the limit convex edge during swinging, so that the rotating device and the mounting frame form a first-stage rotation angle when the rotating device rotates around the main shaft.

[0010] Optimized according to the above, the adjusting end of the limit adjusting stop is provided with a limit convex edge that can form a second rotating stop. A connecting rod for the directional rotation of the rotating device is connected between the swinging end of the rotating device and the mounting plate. The outer edge of the connecting rod is provided with a limit groove. The limit groove contacts the limit convex edge during the swinging of the connecting rod, so that the rotating device and the mounting frame form a second-stage rotation angle when the rotating device rotates around the main shaft.

[0011] Alternatively, the limit adjusting piece includes a limit swinging portion that can form a first rotating stop and a positioning connecting portion that can form a second rotating stop. The positioning connecting portion is provided with a shaft hole. The mounting plate is provided with a convex column rotatably connected to the shaft hole. The limit swinging portion rotates around the convex column as the limit adjusting stop rotates.

[0012] Optimized according to the above, a connecting rod for the directional rotation of the rotating device is connected between the swinging end of the rotating device and the mounting plate. The limit swinging portion is connected to the main shaft as the limit adjusting stop rotates. At the same time, the outer edge of the connecting rod contacts the limit swinging portion during swinging, so that the rotating device and the mounting frame form a first-stage rotation angle when the rotating device rotates around the main shaft.

[0013] Optimized according to the above, a connecting rod for the directional rotation of the rotating device is connected between the swinging end of the rotating device and the mounting plate. A limiting groove is provided on the outer edge of the connecting rod. The limiting swinging part rotates with the limiting adjusting flap and separates from the main shaft. At the same time, the limiting groove touches the limiting positioning connecting part when the connecting rod swings, so that a second-stage rotation angle is formed between the rotating device and the mounting frame when the rotating device rotates around the main shaft.

[0014] Optimized according to the above, the first-stage rotation angle is set to 85°-95°, and the second-stage rotation angle is set to 130°-140°.

[0015] The advantages of the present utility model are as follows:

[0016] 1) By adjusting the rotation position of the limiting adjusting piece, the limiting adjusting piece forms a first rotating flap or a second rotating flap, so that the rotating device touches the first rotating flap or the second rotating flap during the opening of the door body, and the opening amplitude of the door body is switched from the first rotation angle to the second rotation angle.

[0017] 2) By using the structural cooperation between the limiting adjusting piece and the connecting rod of the rotating device, the limiting adjusting piece contacts the connecting rod, which simplifies the structure and can make the rotation of the door body more stable and smooth during opening and closing. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the first-stage rotation angle of the first embodiment of the present utility model (removing the partial rotating device).

[0020] Figure 3 It is a schematic structural diagram of the second-stage rotation angle of the first embodiment of the present utility model (removing the partial rotating device).

[0021] Figure 4 It is an exploded view of the first embodiment of the present utility model.

[0022] Figure 5 It is a schematic structural diagram of the second embodiment of the present utility model.

[0023] Figure 6 It is a schematic structural diagram of the first-stage rotation angle of the second embodiment of the present utility model (removing the partial rotating device).

[0024] Figure 7 It is a schematic structural diagram of the second-stage rotation angle of the second embodiment of the present utility model (removing the partial rotating device).

[0025] Figure 8 It is an exploded view of the second embodiment of the present utility model. Detailed Embodiment

[0026] The present utility model will be further described below in conjunction with the accompanying drawings.

[0027] According to Figures 1 to 4 As shown in the drawings, the hinge for adjusting the opening amplitude of the present utility model includes a mounting plate 1 mounted on the cabinet body and a rotating device 2 mounted on the door body. The rotating device 2 is rotatably connected to the mounting plate 1 through a main shaft 3. Among them, the mounting plate 1 is provided with a limit adjusting piece 4 for adjusting the rotation angle of the rotating device 2. The limit adjusting piece 4 is rotatably connected to the mounting plate 1 so that the limit adjusting piece 4 forms a first rotating stop or a second rotating stop. While the rotating device 2 rotates around the main shaft 3, it is connected to the first rotating stop, so that the rotating device 2 and the mounting frame form a first-stage rotation angle, or while the rotating device 2 rotates around the main shaft 3, it is connected to the second rotating stop, so that the rotating device 2 and the mounting frame form a second-stage rotation angle.

[0028] Referring to Figures 1 to 4 As shown, in further detail, the limit adjusting piece 4 includes a limit adjusting stop with a shaft hole 41. The mounting plate 1 is provided with a first positioning hole 11 and a second positioning hole 12. The positioning end of the limit adjusting stop is rotatably connected to the main shaft 3 through the shaft hole 41. The adjusting end of the limit adjusting stop is provided with an adjusting column that can form a first rotating stop or a second rotating stop. The adjusting column is inserted into the first positioning hole 11 or the second positioning hole 12.

[0029] Moreover, the adjusting end of the limit adjusting stop is provided with a limit convex edge 42 that can form a first rotating stop. A connecting rod 21 for the directional rotation of the rotating device 2 is connected between the swinging end of the rotating device 2 and the mounting plate 1. The outer edge of the connecting rod 21 contacts the limit convex edge 42 during swinging, so that when the rotating device 2 rotates around the main shaft 3, it forms a first-stage rotation angle with the mounting frame.

[0030] In addition, the adjusting end of the limit adjusting stop is provided with a limit convex edge 42 that can form a second rotating stop. A connecting rod 21 for the directional rotation of the rotating device 2 is connected between the swinging end of the rotating device 2 and the mounting plate 1. The outer edge of the connecting rod 21 is provided with a limit groove 211. The limit groove 211 contacts the limit convex edge 42 during the swinging of the connecting rod 21, so that when the rotating device 2 rotates around the main shaft 3, it forms a second-stage rotation angle with the mounting frame.

[0031] Among them, the first-stage rotation angle is set to 85° - 95°, and the second-stage rotation angle is set to 130° - 140°. In the display of this structure, the first-stage rotation angle is selected as 90°, and the second-stage rotation angle is selected as 130°.

[0032] When opening the door body, first insert the adjusting post of the limit adjusting flap into the first positioning hole 11 to set the limit adjusting flap as the first rotation stop. When the door body drives the rotating device 2 to open, the connecting rod 21 of the rotating device 2 touches against the limit flange 42, so that the rotating device 2 opens relative to the mounting bracket to the first gear rotation angle; at this time, the door body can be opened to 90°. If the adjusting post of the limit adjusting flap is rotated around the main shaft 3 and the adjusting post is inserted into the second positioning hole 12 to set the limit adjusting flap as the second rotation stop. When the door body drives the rotation to open, the connecting rod 21 of the rotating device 2 touches against the limit flange 42, so that the rotating device 2 opens relative to the mounting bracket to the second gear rotation angle; at this time, the door body can be opened to the maximum opening angle of 130°

[0033] In this way, by adjusting the rotation position of the limit adjusting piece 4, the limit adjusting piece 4 is formed into the first rotation stop piece or the second rotation stop piece, so that the rotating device 2 touches against the first rotation stop piece or the second rotation stop piece during the opening of the door body, and the opening amplitude of the door body is switched from the first rotation angle to the second rotation angle. The operation is convenient, the rotation is stable and smooth, the applicability is high, and the use effect of the product is improved.

[0034] Refer to Figures 5 to 8 As shown, in the second embodiment, the difference from the above is that: the limit adjusting piece 44 includes a limit swing part 43 that can be formed for the first rotation stop and a positioning connection part 44 that can be formed for the second rotation stop. The positioning connection part 44 is provided with a shaft hole 41, and the mounting plate 1 is provided with a convex column 13 that is rotatably connected to the shaft hole 41. The limit swing part 43 rotates around the convex column 13 as the limit adjusting flap rotates.

[0035] Wherein, a connecting rod 21 for the directional rotation of the rotating device 2 is connected between the swing end of the rotating device 2 and the mounting plate 1. The limit swing part 43 is connected to the main shaft 3 as the limit adjusting flap rotates. At the same time, the outer edge of the connecting rod 21 touches against the limit swing part 43 when the connecting rod 21 swings, so that the rotating device 2 forms a first gear rotation angle with the mounting bracket when rotating around the main shaft 3.

[0036] During this period, a limit groove 211 is provided on the outer edge of the connecting rod 21. The limit swing part 43 is separated from the main shaft 3 as the limit adjusting flap rotates. At the same time, the limit groove 211 touches against the limit positioning connection part 44 when the connecting rod 21 swings, so that the rotating device 2 forms a second gear rotation angle with the mounting bracket when rotating around the main shaft 3.

[0037] Similarly, when opening the door body, first rotate the limit adjustment flap around the convex post 13 to position and connect the limit adjustment flap to the main shaft 3, and set the limit adjustment flap as the first rotation stop. When the door body drives the rotating device 2 to open, the outer edge of the connecting rod 21 touches against the limit convex edge 42 during swinging, so that the rotating device 2 is opened relative to the mounting bracket to the first gear rotation angle; at this time, the door body can be opened to 90°. If the limit adjustment flap is rotated around the convex post 13 so that the limit swinging part 43 moves away from the main shaft 3, the limit adjustment flap is set as the second rotation stop. When the door body drives the rotation to open, the limit groove 211 of the connecting rod 21 of the rotating device 2 touches against the limit positioning connection part 44, so that the rotating device 2 is opened relative to the mounting bracket to the second gear rotation angle; at this time, the door body can be opened to the maximum opening angle of 130°

[0038] In this way, by using the structural cooperation between the limit groove 211 and the limit positioning connection part 44, the limit adjustment piece 4 is formed into a first rotation stop piece or a second rotation stop piece, so that the rotating device 2 touches against the first rotation stop piece or the second rotation stop piece during the opening of the door body, and the opening amplitude of the door body is switched from the first rotation angle to the second rotation angle. The operation is convenient, the rotation is stable and smooth, the applicability is high, and the use effect of the product is improved.

[0039] The above specific embodiments are only the specific embodiments with better effects of the present invention. Any structure that is the same as or equivalent to the hinge for adjusting the opening amplitude of the present invention is within the protection scope of the present invention.

Claims

1. A hinge for adjusting the opening amplitude of a door, comprising a mounting plate (1) mounted on a cabinet body and a rotating device (2) mounted on a door body, wherein the rotating device (2) is rotatably connected to the mounting plate (1) through a main shaft (3), and is characterized in that: The mounting plate (1) is provided with a limit adjusting piece (4) for adjusting the rotation angle of the rotating device (2). The limit adjusting piece (4) is rotatably connected to the mounting plate (1) so that the limit adjusting piece (4) forms a first rotating stop piece or a second rotating stop piece. While the rotating device (2) rotates around the main shaft (3), it is connected to the first rotating stop piece so that the rotating device (2) and the mounting bracket form a first-stage rotation angle, or while the rotating device (2) rotates around the main shaft (3), it is connected to the second rotating stop piece so that the rotating device (2) and the mounting bracket form a second-stage rotation angle.

2. The hinge for adjusting the opening amplitude according to claim 1, characterized in that: The limit adjusting piece (4) includes a limit adjusting stop piece having a shaft hole (41). The mounting plate (1) is provided with a first positioning hole (11) and a second positioning hole (12). The positioning end of the limit adjusting stop piece is rotatably connected to the main shaft (3) through the shaft hole (41). The adjusting end of the limit adjusting stop piece is provided with an adjusting column that can form a first rotating stop or a second rotating stop. The adjusting column is inserted into the first positioning hole (11) or the second positioning hole (12).

3. The hinge for adjusting the opening amplitude according to claim 2, wherein: The adjusting end of the limit adjusting stop piece is provided with a limit convex edge (42) that can form a first rotating stop. A connecting rod (21) for the directional rotation of the rotating device (2) is connected between the swinging end of the rotating device (2) and the mounting plate (1). The outer edge of the connecting rod (21) contacts the limit convex edge (42) during swinging so that the rotating device (2) forms a first-stage rotation angle with the mounting bracket when rotating around the main shaft (3).

4. The hinge for adjusting the opening amplitude according to claim 2, characterized in that: The adjusting end of the limit adjusting stop piece is provided with a limit convex edge (42) that can form a second rotating stop. A connecting rod (21) for the directional rotation of the rotating device (2) is connected between the swinging end of the rotating device (2) and the mounting plate (1). The outer edge of the connecting rod (21) is provided with a limit groove (211). The limit groove (211) contacts the limit convex edge (42) when the connecting rod (21) swings so that the rotating device (2) forms a second-stage rotation angle with the mounting bracket when rotating around the main shaft (3).

5. The hinge for adjusting the opening amplitude according to claim 1, characterized in that: The limit adjusting piece (4) includes a limit swinging part (43) that can form a first rotating stop and a positioning connecting part (44) that can form a second rotating stop. The positioning connecting part (44) is provided with a shaft hole (41). The mounting plate (1) is provided with a convex column (13) that is rotatably connected to the shaft hole (41). The limit swinging part (43) rotates around the convex column (13) as the limit adjusting stop piece rotates.

6. The hinge for adjusting the opening amplitude according to claim 5, wherein: A connecting rod (21) for the directional rotation of the rotating device (2) is connected between the swinging end of the rotating device (2) and the mounting plate (1). The limit swinging part (43) is connected to the main shaft (3) as the limit adjusting stop piece rotates. At the same time, the outer edge of the connecting rod (21) contacts the limit swinging part (43) during swinging so that the rotating device (2) forms a first-stage rotation angle with the mounting bracket when rotating around the main shaft (3).

7. The hinge for adjusting the opening amplitude according to claim 5, wherein: A connecting rod (21) for orienting the rotation of the rotating device (2) is connected between the swinging end of the rotating device (2) and the mounting plate (1). A limiting groove (211) is provided on the outer edge of the connecting rod (21). The limiting swinging part (43) separates from the main shaft (3) as the limiting adjusting flap rotates. At the same time, the limiting groove (211) contacts the limiting positioning connection part (44) as the connecting rod (21) swings, so that a second gear rotation angle is formed between the rotating device (2) and the mounting frame when the rotating device (2) rotates around the main shaft (3).

8. The hinge for adjusting the opening amplitude according to claim 1, wherein: The first gear rotation angle is set to 85°-95°, and the second gear rotation angle is set to 130°-140°.

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