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CN113187336B - Buffer structure for hinge and buffer hinge - Google Patents

Buffer structure for hinge and buffer hinge Download PDF

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Publication number
CN113187336B
CN113187336B CN202110453851.1A CN202110453851A CN113187336B CN 113187336 B CN113187336 B CN 113187336B CN 202110453851 A CN202110453851 A CN 202110453851A CN 113187336 B CN113187336 B CN 113187336B
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CN
China
Prior art keywords
fixed end
buffer
hinge
transmission rod
relative position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110453851.1A
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Chinese (zh)
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CN113187336A (en
Inventor
梁业林
劳庆军
朱海辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Tiansi Hardware Co ltd
Original Assignee
Foshan Tiansi Hardware Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202110453851.1A priority Critical patent/CN113187336B/en
Publication of CN113187336A publication Critical patent/CN113187336A/en
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Publication of CN113187336B publication Critical patent/CN113187336B/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/06—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes in which a torsion spring rotates a member around an axis perpendicular to the axis of the piston
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The invention provides a buffer structure for a hinge and a buffer hinge, which comprise a first fixed end, a hinge arm and a linkage piece, wherein the hinge arm comprises a first transmission rod and a second transmission rod, the first fixed end is respectively and rotatably connected with one end of the first transmission rod and one end of the second transmission rod, the linkage piece is respectively and rotatably connected with the other end of the first transmission rod and the other end of the second transmission rod, the buffer structure for the hinge also comprises a buffer piece, the first fixed end is provided with a first relative position and a second relative position relative to the hinge arm, the buffer piece is positioned on the first transmission rod, when the first fixed end rotates from the first relative position to the second relative position, the buffer piece is abutted against the second transmission rod or the first fixed end, or the buffer piece is positioned on the first fixed end, and when the first fixed end rotates from the first relative position to the second relative position, the buffer piece is abutted against the first transmission rod or the second transmission rod. The invention is additionally provided with the buffer structure, so that the hinge structure has the buffer function.

Description

Buffer structure for hinge and buffer hinge
Technical Field
The invention relates to the field of door hinges, in particular to a buffer structure for a hinge and a buffer hinge using the same.
Background
At present, the buffer hinge used by door bodies such as furniture adopts a damper to be matched with a spring, a damping structure is formed, the slow closing effect of the door is realized, the collision between a cabinet door of a furniture product and the cabinet body is avoided, even if a user closes the door hard, the buffer hinge can also ensure that the cabinet door is closed gently, the home environment is ensured to be quiet and comfortable, and the damage of the door body is avoided.
The prior buffer hinge mainly adopts a two-section stroke structure consisting of a reset stroke section and a free stroke section, when the buffer hinge is in the reset stroke section, the buffer hinge can provide closing force under the action of no external force to automatically close the door body, and when the buffer hinge is in the free stroke section, the buffer hinge cannot be automatically closed, and at the moment, all positions of the door body in the free stroke section have no external force, so that a user can conveniently open the door to take out objects.
However, in the actual use process, a user often uses a large force to open the door, so that the door directly enters a free travel section from a closed state through a reset travel section, and the free travel section has no damping effect, so that the door can be continuously opened due to inertia, and when the maximum opening amplitude is reached, the door swings due to the structural limitation of the door body, larger pressure is generated on the connection among the cabinet body, the door body and the hinge, and the door body, the hinge and the hinge are broken after long-time use.
Disclosure of Invention
The invention provides a buffer structure for a hinge, in particular to a hinge with a buffer function in an open state, which at least solves the problem that a free stroke section door body in the prior art lacks buffer when being opened.
The invention provides a buffer structure for a hinge, which comprises a first fixed end, a hinge arm and a linkage piece, wherein the hinge arm comprises a first transmission rod and a second transmission rod, the first fixed end is respectively and rotatably connected with one end of the first transmission rod and one end of the second transmission rod, and the linkage piece is respectively and rotatably connected with the other end of the first transmission rod and the other end of the second transmission rod;
the buffer member is arranged on the first transmission rod, and when the first fixed end rotates from the first relative position to the second relative position, the buffer member is pressed against the second transmission rod or the first fixed end, or
The buffer piece is located on the first fixing end, and when the first fixing end rotates from the first relative position to the second relative position, the buffer piece is propped against the first transmission rod or the second transmission rod.
Further, an arc-shaped buffer surface is arranged on the buffer piece;
The buffer part is positioned on the first transmission rod, when the first fixed end rotates from the first relative position to the second relative position, the contact position between the buffer part and the second transmission rod or the first fixed end moves along the arc of the arc contact surface, or
The buffer piece is located on the first fixing end, and when the first fixing end rotates from the first relative position to the second relative position, the abutting contact position between the arc buffer surface of the buffer piece and the first transmission rod or the second transmission rod moves along the arc of the arc contact surface.
Further, the buffer member has an arc chute or an arc protrusion at the arc buffer surface.
Further, the buffer piece is an elastic plastic piece.
The invention also discloses a buffer hinge applying the buffer structure for the hinge, the linkage piece is a second fixed end, the buffer hinge also comprises a reset structure, the first fixed end has a closing position and an opening position relative to the second fixed end, the first fixed end and the second fixed end are close to each other at the closing position, and the first fixed end and the second fixed end are separated at the opening position;
The reset structure can drive the first fixed end to enter the closing position when the first fixed end is in the first stroke section;
when the first fixed end rotates from the first relative position to the second relative position, the first fixed end is positioned in the second stroke section.
Further, the reset structure comprises a torsion spring, one end of the torsion spring is in transmission connection with the hinge arm, the other end of the torsion spring is in transmission connection with the first fixed end or the second fixed end, and when the first fixed end is in a first stroke section, the torsion spring can drive the first fixed end to enter a closing position.
Still further, the reset structure further comprises a damper, the damper is mounted on the first fixed end or the second fixed end, the hinge arm is in transmission connection with one end of the damper, and when the first fixed end is in the first travel section, if the first fixed end and the second fixed end move to the closed position, the hinge arm compresses the damper.
Further, the damper is a hydraulic cylinder.
Further, the first transmission rod is connected with a second fixed end opposite to the first fixed end through a rotating shaft, and the second transmission rod is connected with the second fixed end opposite to the first fixed end through a rotating shaft.
Further, the second fixed end is a shell, and the first fixed end is a hinge cup.
Compared with the prior art, the buffer structure utilizes the buffer piece, so that when the first fixed end and the hinge arm move in the second relative position between the first relative positions, the buffer effect is provided through the abutting state of the buffer piece, thereby slowing down the free swing amplitude of the door body, avoiding damage to the buffer hinge and the door body, and having the advantages of simple structure and safe use.
Drawings
FIG. 1 is a schematic view of a buffer hinge according to a first aspect of an embodiment of the present invention at the beginning of a second stroke;
FIG. 2 is an enlarged view of a buffer hinge according to a first aspect of the present invention at the beginning of a second stroke;
FIG. 3 is a schematic view of the buffer hinge at the end of the second stroke according to the first aspect of the embodiment of the present invention;
FIG. 4 is an enlarged view of the buffer hinge at the end of the second stroke according to the first aspect of the present invention;
FIG. 5 is a schematic view showing a buffer hinge at the beginning of a second stroke according to a second aspect of the present invention;
FIG. 6 is an enlarged schematic view of a damper hinge according to a second aspect of the present invention at the beginning of a second stroke;
FIG. 7 is a schematic view showing a buffer hinge at the end of a second stroke according to a second aspect of the embodiment of the present invention
FIG. 8 is an enlarged schematic view of a damper hinge according to a second aspect of the present invention at the end of a second stroke;
FIG. 9 is an exploded view of a second embodiment of a buffering hinge;
Fig. 10 is a schematic structural view of a damper of a buffering hinge according to a first aspect of the present invention.
1. A second fixed end; 2, a first fixed end, 3, a first transmission rod, 4, a second transmission rod, 5, a torsion spring, 61, a first rotating shaft, 62, a second rotating shaft, 63, a first pin shaft, 64, a second pin shaft, 7, a damper, 81, a buffer piece, 82 and a pressing surface.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
The embodiment of the invention provides a buffer structure for a hinge, which is shown in fig. 1-10, and comprises a first fixed end 2, a hinge arm and a linkage piece, wherein the hinge arm comprises a first transmission rod 3 and a second transmission rod 4, the first fixed end 2 is respectively and rotatably connected with one end of the first transmission rod 3 and one end of the second transmission rod 4, and the linkage piece is respectively and rotatably connected with the other end of the first transmission rod 3 and the other end of the second transmission rod 4;
The buffer member 81 is positioned on the first transmission rod 3, and when the first fixed end 2 rotates from the first relative position to the second relative position, the buffer member 81 is abutted against the second transmission rod 4 or the first fixed end 2, or
The buffer member 81 is located on the first fixed end 2, and when the first fixed end 2 rotates from the first relative position to the second relative position, the buffer member 81 abuts against the first transmission rod 3 or the second transmission rod 4.
Alternatively, as shown in fig. 1 to 10, the buffer member 81 is provided with an arc-shaped buffer surface;
The buffer member 81 is positioned on the first transmission rod 3, when the first fixed end 2 rotates from the first relative position to the second relative position, the abutting contact position between the buffer member 81 and the second transmission rod 4 or the first fixed end 2 moves along the arc shape of the arc contact surface, or
The buffer member 81 is located on the first fixed end 2, and when the first fixed end 2 rotates from the first relative position to the second relative position, the contact position between the arc-shaped buffer surface of the buffer member 81 and the first transmission rod 3 or the second transmission rod 4 moves along the arc shape of the arc-shaped contact surface.
In particular, as shown in fig. 1-10, the cushioning member 81 has an arcuate chute or arcuate projection at the arcuate cushioning surface.
Optionally, the buffer member 81 is an elastic plastic member.
The invention also discloses a buffer hinge applying the buffer structure for the hinge, as shown in fig. 1-10, the linkage piece is a second fixed end 1, the buffer hinge also comprises a reset structure, the first fixed end 2 has a closing position and an opening position relative to the second fixed end 1, the first fixed end 2 and the second fixed end 1 are close to each other at the closing position, and the first fixed end 2 and the second fixed end 1 are separated at the opening position;
The first fixed end 2 is at least provided with a first travel section and a second travel section in sequence between a closed position and an open position, and the reset structure can drive the first fixed end 2 to enter the closed position when the first fixed end 2 is in the first travel section;
when the first fixed end 2 rotates from the first relative position to the second relative position, the first fixed end 2 is located in the second stroke section.
Wherein, the buffer hinge is in the motion process from open position to closed position, and first stiff end 2, second stiff end 1 are close gradually. The first fixed end 2 and the second fixed end 1 can be respectively fixed with the cabinet body and the door body.
In the first travel section, the reset structure can drive the buffer hinge to move towards the closed position without external force, and the first buffer member 81 and the second buffer member 81 are not abutted.
In the second stroke section, under no external force effect, the reset structure does not drive the buffer hinge to move towards the closed position, and at the moment, the first buffer part 81 and the second buffer part 81 are in butt joint to provide friction force, so that the damping effect of the buffer hinge in the second stroke section is realized, and the swing amplitude in the door opening process is reduced.
It should be noted that, in the embodiment of the present invention, the first stroke section and the second stroke section refer to a continuous stroke state of the first fixed end 2 during the transition from the closed position to the open position, rather than a single fixed positional relationship, and the first fixed end 2 sequentially passes through the first stroke section and the second stroke section during the transition from the closed position to the open position.
The buffer hinge solves the problem that the door body is easy to swing when the hinge is opened in the prior art, avoids the phenomenon that the cabinet door of products such as furniture swings due to the action of excessive external force in the closing process, collides with the cabinet body, damages the cabinet body and the door body, causes unnecessary loss, and ensures the quiet and comfortable home environment.
Optionally, a third stroke section may be further disposed between the first stroke section and the second stroke section, where the reset structure in the third stroke section may drive the first fixed end 2 to enter the closed position and the first buffer member 81 and the second buffer member 81 abut against each other, or the reset structure in the third stroke section does not drive the first fixed end 2 to enter the closed position and the first buffer member 81 and the second buffer member 81 do not abut against each other.
According to the embodiment of the invention, the buffer structure is additionally arranged on the hinge, and the hinge has a damping effect in the second stroke section by utilizing the abutting of the first buffer part 81 and the second buffer part 81, so that the free swing of the door body is slowed down, the damage to the buffer hinge and the door body is avoided, and the door body has the advantages of simple structure and safety in use.
Optionally, the reset structure includes torsion spring 5, torsion spring 5's one end links to each other with the hinge arm transmission, torsion spring 5's the other end links to each other with first stiff end 2 or the transmission of second stiff end 1, first stiff end 2 is in the first stroke section, torsion spring 5 can drive first stiff end 2 and get into the closed position.
In particular, as shown in fig. 10, the reset structure further includes a damper 7, the damper 7 is mounted on the first fixed end 2 or the second fixed end 1, the hinge arm is in transmission connection with one end of the damper 7, and when the first fixed end 2 moves to the closed position during the first travel period, the hinge arm compresses the damper 7 if the first fixed end 2 and the second fixed end 1 move to the closed position.
In particular, the damper 7 is a hydraulic cylinder.
The damper 7 is a hydraulic cylinder, one end of the second transmission rod 4 is propped against one end of the torsion spring 5, the other end of the torsion spring 5 is sleeved and hooked on the second fixed end 1, and the first fixed end 2 can be driven to enter a closing position relative to the second fixed end 1.
Optionally, the first transmission rod 3 is connected with the second fixed end 1 opposite to the first fixed end 2 through a rotating shaft, and the second transmission rod 4 is connected with the second fixed end 1 opposite to the first fixed end 2 through a rotating shaft.
The first transmission rod 3, the second transmission rod 4 and the hinge cup are rotatably connected by adopting a first pin 63 and a second pin 64 as rotating shafts, and the first transmission rod 3, the second transmission rod 4 and the shell are rotatably connected by adopting a first rotating shaft 61 and a second rotating shaft 62 as rotating shafts.
Optionally, the first fixed end 2 is a housing, and the second fixed end 1 is a hinge cup.
Wherein, the shell is used for being fixed with the cabinet body, and the hinge cup is used for being fixed with the door body.
The embodiment of the invention specifically describes a buffer hinge, and the alternative scheme of the buffer hinge is disclosed in the following two aspects.
The buffer hinge of the first aspect of the embodiment of the invention may have the following structure:
In particular, as shown in fig. 1 to 4, the buffer member 81 is mounted on the first transmission rod 3 or the hinge cup through a rotation shaft between the first transmission rod 3 and the hinge cup, the second transmission rod 4 is provided with a pressing surface 82 near the buffer member 81, and the pressing surface 82 is in contact with the buffer member 81 during the second stroke.
In particular, the buffer member 81 is provided with an arc-shaped groove near the second transmission rod 4, in each position in the second stroke section, the pressing surface 82 is in abutment with at least one point on the arc-shaped groove, and in the process that one end of the second stroke section moves towards the other end of the second stroke section, the abutment position on the pressing surface 82 and the arc-shaped groove moves along the arc of the arc-shaped groove.
As shown in fig. 10, in this embodiment, only the torsion spring 5 may be used as the restoring member, or the torsion spring 5 and the damper 7 may be used to achieve the restoring function, the buffer member 81 is mounted on the first pin 63, the buffer member 81 abuts against the first transmission rod 3, and the pressing surface 82 of the second transmission rod 4 is an arc surface and abuts against the buffer member 81 in the second stroke.
In the opening process of the embodiment, after the buffer member 81 abuts against the second transmission rod 4, buffering, that is, the second stroke is realized, when excessive external force acts on the door body, friction force is provided by abutting between the buffer member 81 and the second transmission rod 4, so that part of external force is consumed, the door body can be stably opened, and swing of the door body is reduced or stopped.
In particular, one end of the second transmission rod 4 is rotatably mounted on the second pin shaft 64, and the other end of the second transmission rod 4 is hooked at the end of the second transmission rod 4 away from the hinge cup.
Preferably, the buffer member 81 is a shaped spring or an elastic plastic member.
In this embodiment, the plastic member is used as the buffer member 81 for better buffering due to the toughness and surface friction properties of the plastic material.
The second aspect of the buffer hinge of the embodiment of the invention can adopt the following structure:
in particular, as shown in fig. 5 to 8, the buffer member 81 has an arc-shaped protrusion, and is located on the first transmission rod 3, the first fixing member or the second transmission rod 4 is provided with a pressing surface 82, and during the second stroke section, the pressing surface 82 is abutted against the arc-shaped protrusion of the buffer member 81.
The buffer member 81 is an extension structure of the first transmission rod 3, an arc-shaped protrusion is disposed near the first fixed end 2, as shown in fig. 9, the pressing surface 82 is made of plastic, in each position in the second stroke section, the pressing surface 82 is abutted to at least one point on the arc-shaped protrusion, and in the process of moving from one end of the second stroke section to the other end of the second stroke section, the abutting position of the pressing surface 82 and the arc-shaped protrusion moves along the arc of the arc-shaped protrusion.
In the embodiment, the first transmission rod 3 is abutted with the first fixed end 2 in the second stroke, so that the opening resistance of the hinge is increased, and in the second stroke, part of external force is consumed by the hinge under the action of the first transmission rod 3, the opening speed is delayed, the speed is controllable, the door body is opened stably, and the swing is reduced.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application after reading the present specification, and these modifications and variations do not depart from the scope of the application as claimed in the pending claims.

Claims (10)

1.一种铰链用缓冲结构，其特征在于，所述铰链用缓冲结构包括第一固定端、铰链臂、联动件，所述铰链臂包括第一传动杆、第二传动杆，所述第一固定端分别与第一传动杆的一端、第二传动杆的一端转动相连，所述联动件分别与第一传动杆的另一端、第二传动杆的另一端转动相连；所述铰链用缓冲结构还包括缓冲件，所述第一固定端相对铰链臂具有第一相对位置、第二相对位置；1. A buffer structure for a hinge, characterized in that the buffer structure for the hinge comprises a first fixed end, a hinge arm, and a linkage member, the hinge arm comprises a first transmission rod and a second transmission rod, the first fixed end is rotatably connected to one end of the first transmission rod and one end of the second transmission rod respectively, and the linkage member is rotatably connected to the other end of the first transmission rod and the other end of the second transmission rod respectively; the buffer structure for the hinge also comprises a buffer member, and the first fixed end has a first relative position and a second relative position relative to the hinge arm; 所述缓冲件位于第一传动杆上，所述第一固定端从第一相对位置向第二相对位置转动时，所述缓冲件与第二传动杆或第一固定端相抵压；或The buffer is located on the first transmission rod, and when the first fixed end rotates from the first relative position to the second relative position, the buffer is pressed against the second transmission rod or the first fixed end; or 所述缓冲件位于第一固定端上，所述第一固定端从第一相对位置向第二相对位置转动时，所述缓冲件与第一传动杆或第二传动杆相抵压。The buffer is located on the first fixed end. When the first fixed end rotates from the first relative position to the second relative position, the buffer is pressed against the first transmission rod or the second transmission rod. 2.根据权利要求1所述铰链用缓冲结构，其特征在于，所述缓冲件上设有弧形缓冲面；2. The hinge buffer structure according to claim 1, characterized in that the buffer member is provided with an arc-shaped buffer surface; 所述缓冲件位于第一传动杆上，所述第一固定端从第一相对位置向第二相对位置转动时，所述缓冲件与第二传动杆或第一固定端之间的抵压接触位置沿所述弧形接触面的弧形移动；或The buffer is located on the first transmission rod, and when the first fixed end rotates from the first relative position to the second relative position, the pressing contact position between the buffer and the second transmission rod or the first fixed end moves along the arc of the arc-shaped contact surface; or 所述缓冲件位于第一固定端上，所述第一固定端从第一相对位置向第二相对位置转动时，所述缓冲件弧形缓冲面与第一传动杆或第二传动杆之间的抵压接触位置沿所述弧形接触面的弧形移动。The buffer is located on the first fixed end. When the first fixed end rotates from the first relative position to the second relative position, the pressing contact position between the arcuate buffer surface of the buffer and the first transmission rod or the second transmission rod moves along the arc of the arcuate contact surface. 3.根据权利要求2所述铰链用缓冲结构，其特征在于，所述缓冲件在弧形缓冲面处具有弧形滑槽或弧形凸起。3. The hinge buffer structure according to claim 2, characterized in that the buffer component has an arc-shaped sliding groove or an arc-shaped protrusion on the arc-shaped buffer surface. 4.根据权利要求1所述铰链用缓冲结构，其特征在于，所述缓冲件为弹性塑胶件。4 . The hinge buffer structure according to claim 1 , wherein the buffer component is an elastic plastic component. 5.一种应用权利要求1-4任一项所述铰链用缓冲结构的缓冲铰链，其特征在于，所述联动件为第二固定端，缓冲铰链还包括复位结构，所述第一固定端相对第二固定端具有关闭位置、打开位置，所述第一固定端、第二固定端在关闭位置下靠近，所述第一固定端、第二固定端在打开位置下分离；5. A buffer hinge using the buffer structure for hinges according to any one of claims 1 to 4, characterized in that the linkage member is a second fixed end, the buffer hinge further comprises a reset structure, the first fixed end has a closed position and an open position relative to the second fixed end, the first fixed end and the second fixed end are close to each other in the closed position, and the first fixed end and the second fixed end are separated in the open position; 所述第一固定端在关闭位置与打开位置之间至少依次设有第一行程段、第二行程段；所述第一固定端在第一行程段时，所述复位结构可带动第一固定端进入关闭位置；The first fixed end is provided with at least a first travel section and a second travel section in sequence between the closed position and the open position; when the first fixed end is in the first travel section, the reset structure can drive the first fixed end to enter the closed position; 所述第一固定端从第一相对位置向第二相对位置转动时，所述第一固定端位于第二行程段内。When the first fixed end rotates from the first relative position to the second relative position, the first fixed end is located in the second stroke section. 6.根据权利要求5所述的一种缓冲铰链，其特征在于，所述复位结构包括扭力弹簧，所述扭力弹簧，所述扭力弹簧的一端与铰链臂传动相连，所述扭力弹簧的另一端与第一固定端或第二固定端传动相连，所述第一固定端在第一行程段时，所述扭力弹簧可带动第一固定端进入关闭位置。6. A buffer hinge according to claim 5, characterized in that the reset structure includes a torsion spring, one end of which is transmission connected to the hinge arm, and the other end of which is transmission connected to the first fixed end or the second fixed end, and when the first fixed end is in the first stroke section, the torsion spring can drive the first fixed end to enter a closed position. 7.根据权利要求6所述的一种缓冲铰链，其特征在于，所述复位结构还包括阻尼器，所述阻尼器安装在第一固定端或第二固定端上，所述铰链臂与阻尼器的一端传动相连，所述第一固定端在第一行程段时，若所述第一固定端、第二固定端向关闭位置运动，所述铰链臂压缩阻尼器。7. A buffer hinge according to claim 6, characterized in that the reset structure also includes a damper, the damper is installed on the first fixed end or the second fixed end, the hinge arm is transmission connected to one end of the damper, and when the first fixed end is in the first stroke section, if the first fixed end and the second fixed end move toward the closed position, the hinge arm compresses the damper. 8.根据权利要求7所述的一种缓冲铰链，其特征在于，所述阻尼器为液压缸。8. A buffer hinge according to claim 7, characterized in that the damper is a hydraulic cylinder. 9.根据权利要求5所述的一种缓冲铰链，其特征在于，所述第一传动杆与第一固定端相对第二固定端通过转轴相连，所述第二传动杆与第一固定端相对第二固定端通过转轴相连。9. A buffer hinge according to claim 5, characterized in that the first transmission rod is connected to the first fixed end relative to the second fixed end via a rotating shaft, and the second transmission rod is connected to the first fixed end relative to the second fixed end via a rotating shaft. 10.根据权利要求5所述的一种缓冲铰链，其特征在于，所述第二固定端为外壳，所述第一固定端为铰链杯。10 . The buffer hinge according to claim 5 , wherein the second fixed end is a shell, and the first fixed end is a hinge cup.
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