Left and right flag-shaped buffer hinge

Abstract

The utility model discloses a left and right flag type buffer hinge which comprises a first hinge piece, a second hinge piece and a shaft core, the first hinge piece is provided with a first sleeve, the second hinge piece is provided with a second sleeve, the shaft core comprises a first shaft and a second shaft which rotate coaxially, the first shaft is coaxially connected with the first sleeve, and the second shaft is coaxially connected with the second sleeve. A first transmission structure is arranged between the first sleeve and the first shaft, the first transmission structure is connected with the first sleeve and the first shaft, a first locking structure is arranged on the side, away from the second sleeve, of the first sleeve, and the first locking structure prevents the first sleeve from being separated from the first shaft; a second transmission structure is arranged between the second sleeve and the second shaft and connected with the second sleeve and the second shaft, a second locking structure is arranged on the side, away from the first sleeve, of the second sleeve, and the second locking structure prevents the second sleeve from being separated from the second shaft. When the hinge is installed, the left and right parts do not need to be distinguished, installation is convenient, and enterprises can manage the hinge conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a flag-type buffer hinge without distinction between left and right. Background Art

[0002] In some hinge structures, the upper leaf piece is connected to the door body and the lower leaf piece is connected to the door frame. The upper leaf piece and the lower leaf piece are distributed up and down, and an axis core is connected between the upper leaf piece and the lower leaf piece. The upper leaf piece and the lower leaf piece are rotatably connected through the axis core. Moreover, the upper leaf piece and the axis core are a flag-shaped structure, and the lower leaf piece and the axis core are an inverted flag-shaped structure. This flag-shaped hinge is widely used in door hinge structures.

[0003] Furthermore, the shaft core includes an upper shaft and a lower shaft that rotate coaxially, the lower leaf is fixedly connected to the lower shaft, and the sleeve of the upper leaf is tightly fitted with the upper shaft in a pressed-in manner, so that the upper leaf rotates with the upper shaft.

[0004] Furthermore, a buffer mechanism is provided between the upper shaft and the lower shaft, and the buffer mechanism can achieve the effects of automatic door closing and buffering.

[0005] When installing flag-type buffer hinges on the door, you need to ensure that the upper page is above the lower page, because the sleeve of the upper page and the upper shaft are tightly connected, and the connection is not strong enough. If the hinge is installed upside down, the upper page will be separated from the axis core under the action of gravity of the door and cannot be installed normally. Therefore, it is necessary to distinguish between left and right flag-type buffer hinges. Different types of flag-type buffer hinges need to be installed for doors that open to the left and right.

[0006] However, it is necessary to design and manufacture different types of left and right flag hinges, which makes it difficult for enterprises to manage hinges. In addition, the left and right hinges also need to be distinguished when installing. The wrong installation direction will cause one leaf to be unable to be supported, thereby causing the door body to fall off. Utility Model Content

[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a flag-type buffer hinge that does not distinguish between left and right, which does not need to distinguish between left and right during installation, is easy to install, and is also convenient for enterprises to manage hinges.

[0008] According to the first aspect of the utility model, a flag-type buffer hinge that does not distinguish between left and right includes a first page, a second page and an axis core, the first page and the second page are coaxially rotatable through the axis core, the first page is provided with a first sleeve, the second page is provided with a second sleeve, the axis core includes a first shaft and a second shaft that rotate coaxially, the first shaft is coaxially connected to the first sleeve, the second shaft is coaxially connected to the second sleeve, a buffer mechanism is provided between the first shaft and the second shaft, and the buffer mechanism is used for door closing buffer: a first transmission structure is provided between the first sleeve and the first shaft, the first transmission structure connects the first sleeve and the first shaft, a first locking structure is provided on the side of the first sleeve away from the second sleeve, and the first locking structure prevents the first sleeve from detaching from the first shaft; a second transmission structure is provided between the second sleeve and the second shaft, the second transmission structure connects the second sleeve and the second shaft, a second locking structure is provided on the side of the second sleeve away from the first sleeve, and the second locking structure prevents the second sleeve from detaching from the second shaft.

[0009] According to the embodiment of the utility model, a flag-type buffer hinge without distinction between left and right has at least the following beneficial effects:

[0010] 1. The utility model arranges the first leaf piece, the second leaf piece and the shaft core so that the first leaf piece and the second leaf piece respectively form a flag shape with the shaft core, and the hinge structure is simple. In addition, a buffer mechanism is arranged between the first shaft and the second shaft. Therefore, during the automatic door closing process, the buffer mechanism can make the door close slowly to realize the buffer function.

[0011] 2. The utility model sets a first transmission structure and a first locking structure, and utilizes the first transmission structure to connect the first set and the first shaft. The first set can output torque to the first shaft through the first transmission structure, ensuring that the buffer mechanism can achieve a buffer function, and the first locking structure is utilized to prevent the first set from being separated from the first shaft, thereby preventing the door body from being separated from the axis core under the action of gravity after the door hinges are installed.

[0012] 3. The utility model sets a second transmission structure and a second locking structure, and utilizes the second transmission structure to connect the second sleeve and the second shaft to prevent the second sleeve and the second shaft from rotating relative to each other, thereby ensuring that the buffer mechanism can achieve the buffer function, and utilizes the second locking structure to prevent the second sleeve from being separated from the second shaft, thereby preventing the door body from being separated from the axis core under the action of gravity after the door hinges are installed.

[0013] 4. Compared with the traditional flag-type buffer hinge, the hinge of the utility model does not need to distinguish between left and right when installing, and is suitable for installation on left-opening and right-opening doors, avoiding the problem of the door body detaching due to the wrong position of the hinge installed on the door. There is no need to design and manufacture two types of left and right flag-type hinges, which reduces the types of hinges, greatly reduces the difficulty of enterprise management of hinges, and improves the convenience of hinge installation.

[0014] According to some embodiments of the present invention, the first shaft has a first connecting shaft portion, the first transmission structure has a first transmission member arranged in the first sleeve, and the first sleeve is transmission-connected to the first connecting shaft portion through the first transmission member.

[0015] According to some embodiments of the present invention, the first transmission member is a ferrule, the outer surface of the ferrule is tightly matched with the inner surface of the first sleeve, and the ferrule is sleeved on the first connecting shaft portion.

[0016] According to some embodiments of the utility model, a rack is provided on the radial outer surface of the ferrule, and the rack extends along the axial direction of the ferrule, and the ferrule is tightly fitted with the inner surface of the first sleeve through the rack.

[0017] According to some embodiments of the utility model, a radial outer surface of the first connecting shaft portion is provided with a slot, the first transmission structure has a screw, the screw thread is arranged between the sleeve and the first sleeve, and the end of the screw extends into the slot.

[0018] According to some embodiments of the utility model, the first shaft has a first connecting shaft portion, and the locking structure has a first locking piece, the first locking piece is used to prevent the first sleeve from detaching from the first shaft in a direction away from the second sleeve, and the first locking piece and the first connecting shaft portion are connected by a threaded connection.

[0019] According to some embodiments of the present invention, the second shaft has a second connecting shaft portion, the second transmission structure has a second transmission member arranged in the second sleeve, and the second sleeve is transmission-connected to the second connecting shaft portion through the second transmission member.

[0020] According to some embodiments of the present invention, the second transmission member is a snap ring, the outer surface of the snap ring is tightly matched with the inner surface of the second sleeve, and the snap ring is sleeved on the second connecting shaft portion.

[0021] According to some embodiments of the utility model, a second flat portion is provided on the radial outer surface of the second connecting shaft portion, a third flat portion is provided on the inner side of the retaining ring, and the second flat portion and the third flat portion are arranged opposite to each other to prevent the retaining ring and the second connecting shaft portion from rotating relative to each other.

[0022] According to some embodiments of the utility model, the second shaft has a second connecting shaft portion, and the locking structure has a second locking piece, which is used to prevent the second sleeve from detaching from the second shaft in a direction away from the first sleeve, and the second locking piece and the second connecting shaft portion are connected by a threaded connection.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 This is a structural schematic diagram of a flag-type buffer hinge that does not distinguish between left and right according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 An exploded view of a flag-type buffer hinge without distinction between left and right is shown;

[0027] Figure 3 for Figure 2 An exploded view of a portion of a flag-type buffer hinge that does not distinguish between left and right is shown;

[0028] Figure 4 for Figure 2 An exploded view of another part of a flag-type buffer hinge that does not distinguish between left and right is shown.

[0029] Reference numerals:

[0030] 110-first page, 120-first set;

[0031] 210-second page, 220-second set;

[0032] 300 - shaft core, 310 - first shaft, 311 - first connecting shaft portion, 312 - slot, 313 - first flat portion, 320 - second shaft, 321 - second connecting shaft portion, 322 - second flat portion;

[0033] 410-first transmission member, 411-rack, 420-screw;

[0034] 500-first locking member;

[0035] 600-second transmission member, 610-third flat portion;

[0036] 700 - second locking member. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] A flag-type buffer hinge without left or right distinction according to an embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0042] Reference Figure 1 The utility model embodiment of a flag-type buffer hinge that does not distinguish between left and right includes a first page 110, a second page 210 and an axis core 300. The first page 110 and the second page 210 are coaxially rotatable through the axis core 300. The first page 110 is provided with a first set 120, and the second page 210 is provided with a second set 220. The axis core 300 includes a first axis 310 and a second axis 320 that rotate coaxially. The first axis 310 is coaxially connected to the first set 120, and the second axis 320 is coaxially connected to the second set 220.

[0043] Therefore, in the appearance of the hinge of this embodiment, the first leaf piece 110 and the second leaf piece 210 respectively form a flag shape with the shaft core 300, and the hinge structure is simple.

[0044] In order to achieve a buffering function during the automatic door closing process, a buffering mechanism is provided between the first shaft 310 and the second shaft 320. The buffering mechanism is used for door closing buffering. The buffering mechanism may adopt a hydraulic damping structure or a non-hydraulic damping structure.

[0045] It should be noted that a first transmission structure is arranged between the first sleeve 120 and the first shaft 310, the first transmission structure connects the first sleeve 120 and the first shaft 310, and a first locking structure is arranged on the side of the first sleeve 120 away from the second sleeve 220, the first locking structure prevents the first sleeve 120 from detaching from the first shaft 310.

[0046] The first set 120 and the first shaft 310 are connected by the first transmission structure. The first set 120 can output torque to the first shaft 310 through the first transmission structure to ensure that the buffer mechanism can achieve the buffer function. In addition, the first locking structure is used to prevent the first set 120 from being separated from the first shaft 310, so as to prevent the door body from being separated from the shaft core 300 under the action of gravity after the door hinges are installed.

[0047] In some embodiments of the present invention, the first shaft 310 has a first connecting shaft portion 311 , and the first transmission structure has a first transmission member 410 disposed in the first sleeve 120 , and the first sleeve 120 is transmission-connected to the first connecting shaft portion 311 via the first transmission member 410 .

[0048] Therefore, a first transmission member 410 is added, and the first connecting shaft portion 311 and the first sleeve 120 are connected by the first transmission member 410. The first sleeve 120 can output torque to the first shaft 310 through the first transmission member 410, so that the first sleeve 120 and the first shaft 310 are not easy to rotate relative to each other, thereby avoiding direct connection between the first sleeve 120 and the first shaft 310 and reducing the difficulty of installing the first sleeve 120 and the first shaft 310.

[0049] In a further embodiment of the present invention, referring to Figure 1 , Figure 2 and Figure 3 The first transmission member 410 is a ferrule, the outer surface of the ferrule is tightly matched with the inner surface of the first sleeve 120, and the ferrule is sleeved on the first connecting shaft portion 311.

[0050] Therefore, the ferrule can be easily installed on the first connecting shaft portion 311 and ensure that the first shaft 310 and the first sleeve 120 rotate synchronously.

[0051] In addition, the first transmission member 410 can also be a connecting key, which is arranged on the first connecting shaft portion 311. The first sleeve 120 is provided with a keyway. The connecting key and the keyway cooperate to realize the synchronous rotation of the first shaft 310 and the first sleeve 120. Of course, the first connecting member can also be other structural forms.

[0052] In some specific embodiments of the present invention, a rack 411 is provided on the radial outer surface of the ferrule. The rack 411 extends along the axial direction of the ferrule. The ferrule is tightly fitted with the inner surface of the first sleeve 120 through the rack 411.

[0053] A plurality of racks 411 are provided, and the racks 411 are distributed along the circumference of the ferrule. Therefore, the ferrule is pressed into the first sleeve 120 so that the ferrule is firmly connected to the first sleeve 120.

[0054] In a further embodiment of the utility model, a radial outer surface of the first connecting shaft portion 311 is provided with a slot 312, and the first transmission structure has a screw 420, which is threadedly arranged between the sleeve and the first sleeve 120, and the end of the screw 420 extends into the slot 312, thereby further preventing the first sleeve 120 from escaping from the first shaft 310.

[0055] In some specific embodiments of the present invention, a first flat portion 313 is provided on the radial outer surface of the first connecting shaft portion 311, and a first flat portion 313 may also be provided on the inner side of the ferrule. The two first flat portions 313 are in relative contact to prevent the ferrule and the first connecting shaft portion 311 from rotating relative to each other.

[0056] In some embodiments of the present invention, the first shaft 310 has a first connecting shaft portion 311, and the locking structure has a first locking member 500, which is used to prevent the first sleeve 120 from detaching from the first shaft 310 in a direction away from the second sleeve 220, and the first locking member 500 and the first connecting shaft portion 311 are connected by a thread.

[0057] It can be understood that the first locking member 500 can be an end cover nut, and the first connecting shaft portion 311 is provided with an external thread. The first connecting shaft portion 311 is threadedly connected to the end cover nut through the external thread, so that the end cover nut prevents the first set 120 from detaching from the shaft core 300, thereby locking the first set 120.

[0058] Of course, the first locking member 500 can also be other structures, such as a retaining spring, which is arranged on the first connecting shaft portion 311 so that the retaining spring prevents the first sleeve 120 from detaching from the shaft core 300, thereby locking the first sleeve 120.

[0059] It should be noted that a second transmission structure is arranged between the second set 220 and the second shaft 320, the second transmission structure connects the second set 220 and the second shaft 320, and a second locking structure is arranged on the side of the second set 220 away from the first set 120, the second locking structure prevents the second set 220 from detaching from the second shaft 320.

[0060] A second transmission structure is used to connect the second sleeve 220 and the second shaft 320 to prevent the second sleeve 220 and the second shaft 320 from rotating relative to each other, thereby ensuring that the buffer mechanism can achieve a buffering function. In addition, a second locking structure is used to prevent the second sleeve 220 from being separated from the second shaft 320, thereby preventing the door body from being separated from the shaft core 300 under the action of gravity after the door hinges are installed.

[0061] In some embodiments of the present invention, the second shaft 320 has a second connecting shaft portion 321 , and the second transmission structure has a second transmission member 600 disposed in the second sleeve 220 , and the second sleeve 220 is transmission-connected to the second connecting shaft portion 321 via the second transmission member 600 .

[0062] Therefore, a second transmission member 600 is added, and the second connecting shaft portion 321 and the second sleeve 220 are connected by the second transmission member 600, so that the second sleeve 220 and the second shaft 320 rotate synchronously, making it difficult for the second sleeve 220 and the second shaft 320 to rotate relative to each other, avoiding direct connection between the second sleeve 220 and the second shaft 320, and reducing the difficulty of installing the second sleeve 220 and the second shaft 320.

[0063] In some specific embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 4 The second transmission member 600 is a snap ring, the outer surface of the snap ring is tightly matched with the inner surface of the second sleeve 220, and the snap ring is sleeved on the second connecting shaft portion 321.

[0064] Therefore, the snap ring can be easily installed on the second connecting shaft portion 321 to prevent the second shaft 320 and the second sleeve 220 from rotating relative to each other.

[0065] In addition, the second transmission member 600 can also be a connecting key, which is arranged on the second connecting shaft portion 321. The second set 220 is provided with a keyway. The connecting key and the keyway cooperate to realize the synchronous rotation of the second shaft 320 and the second set 220. Of course, the second transmission member 600 can also be other structural forms.

[0066] It should be noted that a tooth portion is provided on the outer surface of the snap ring, and the snap ring is pressed into the second sleeve 220 so that the tooth portion is embedded in the second sleeve 220, so that the snap ring is firmly connected to the second sleeve 220.

[0067] In some specific embodiments of the present invention, a second flat portion 322 is provided on the radial outer surface of the second connecting shaft portion 321, and a third flat portion 610 is provided on the inner side of the retaining ring. The second flat portion 322 and the third flat portion 610 are arranged opposite to each other to prevent the retaining ring and the second connecting shaft portion 321 from rotating relative to each other.

[0068] Therefore, the relative rotation of the clamping ring and the second connecting shaft portion 321 is restricted by the relative contact between the second flat portion 322 and the third flat portion 610 .

[0069] In some embodiments of the present invention, the second shaft 320 has a second connecting shaft portion 321, and the locking structure has a second locking member 700, which is used to prevent the second sleeve 220 from detaching from the second shaft 320 in a direction away from the first sleeve 120, and the second locking member 700 and the second connecting shaft portion 321 are connected by a threaded connection.

[0070] It can be understood that the second locking member 700 can be an end cover nut, and the second connecting shaft portion 321 is provided with an external thread. The second connecting shaft portion 321 is threadedly connected to the end cover nut via the external thread, so that the end cover nut prevents the second set 220 from detaching from the shaft core 300, thereby locking the second set 220.

[0071] Of course, the second locking member 700 can also be other structures, such as a retaining spring, which is arranged on the second connecting shaft portion 321 so that the retaining spring prevents the second sleeve 220 from detaching from the shaft core 300, thereby locking the second sleeve 220.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A flag-type buffer hinge without distinction between left and right, characterized in that: The invention comprises a first sheet (110), a second sheet (210) and an axis core (300), wherein the first sheet (110) and the second sheet (210) are coaxially rotatable via the axis core (300), the first sheet (110) is provided with a first sleeve (120), the second sheet (210) is provided with a second sleeve (220), the axis core (300) comprises a first shaft (310) and a second shaft (320) coaxially rotatable, the first shaft (310) is coaxially connected to the first sleeve (120), the second shaft (320) is coaxially connected to the second sleeve (220), a buffer mechanism is provided between the first shaft (310) and the second shaft (320), and the buffer mechanism is used for door closing buffering: A first transmission structure is provided between the first sleeve (120) and the first shaft (310), the first transmission structure connecting the first sleeve (120) and the first shaft (310), and a first locking structure is provided on a side of the first sleeve (120) away from the second sleeve (220), the first locking structure preventing the first sleeve (120) from being separated from the first shaft (310); A second transmission structure is provided between the second sleeve (220) and the second shaft (320), the second transmission structure connecting the second sleeve (220) and the second shaft (320), and a second locking structure is provided on the side of the second sleeve (220) away from the first sleeve (120), the second locking structure preventing the second sleeve (220) from being separated from the second shaft (320).

2. The flag-type buffer hinge without distinction between left and right according to claim 1, characterized in that: The first shaft (310) has a first connecting shaft portion (311), the first transmission structure has a first transmission member (410) arranged in the first sleeve (120), and the first sleeve (120) is transmission-connected to the first connecting shaft portion (311) via the first transmission member (410).

3. The flag-type buffer hinge without left or right distinction according to claim 2, characterized in that: The first transmission member (410) is a ferrule, the outer surface of the ferrule is tightly matched with the inner surface of the first sleeve (120), and the ferrule is sleeved on the first connecting shaft portion (311).

4. The flag-type buffer hinge without distinction between left and right according to claim 3, characterized in that: A rack (411) is provided on the radial outer surface of the ferrule, and the rack (411) extends along the axial direction of the ferrule. The ferrule is tightly fitted with the inner surface of the first sleeve (120) through the rack (411).

5. The flag-type buffer hinge without distinction between left and right according to claim 3, characterized in that: A slot (312) is provided on the radial outer surface of the first connecting shaft portion (311), and the first transmission structure has a screw (420). The screw (420) is threadedly arranged between the sleeve and the first sleeve (120), and the end of the screw (420) extends into the slot (312).

6. The flag-type buffer hinge without distinction between left and right according to claim 1, characterized in that: The first shaft (310) has a first connecting shaft portion (311), and the locking structure has a first locking member (500). The first locking member (500) is used to prevent the first sleeve (120) from detaching from the first shaft (310) in a direction away from the second sleeve (220). The first locking member (500) and the first connecting shaft portion (311) are connected by a thread.

7. The flag-type buffer hinge without left or right distinction according to claim 1, characterized in that: The second shaft (320) has a second connecting shaft portion (321), the second transmission structure has a second transmission member (600) arranged in the second sleeve (220), and the second sleeve (220) is transmission-connected to the second connecting shaft portion (321) via the second transmission member (600).

8. The flag-type buffer hinge without left or right distinction according to claim 7, characterized in that: The second transmission member (600) is a snap ring, the outer surface of the snap ring is tightly matched with the inner surface of the second sleeve (220), and the snap ring is sleeved on the second connecting shaft portion (321).

9. The flag-type buffer hinge without distinction between left and right according to claim 8, characterized in that: A second flat portion (322) is provided on the radial outer surface of the second connecting shaft portion (321), and a third flat portion (610) is provided on the inner side of the retaining ring. The second flat portion (322) and the third flat portion (610) are arranged opposite to each other to prevent the retaining ring and the second connecting shaft portion (321) from rotating relative to each other.

10. The flag-type buffer hinge without left or right distinction according to claim 1, characterized in that: The second shaft (320) has a second connecting shaft portion (321), and the locking structure has a second locking member (700). The second locking member (700) is used to prevent the second sleeve (220) from detaching from the second shaft (320) in a direction away from the first sleeve (120), and the second locking member (700) and the second connecting shaft portion (321) are connected by a thread.

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