Hinge

Abstract

The hinge comprises a cup head, an arm body and a buffering part, the cup head is hinged to the arm body, the buffering part is connected with the cup head, when the arm body and the cup head rotate towards a closed state, the buffering part abuts against the arm body, the buffering part exerts buffering force on the arm body, and the arm body rotates towards the closed state. The buffering device has the advantages that when the arm body and the cup head are in a closed state from an open state, the door plate of the door cabinet product is closed, the buffering piece abuts against the arm body, and the buffering piece connected to the cup head exerts the buffering force on rotation of the arm body, so that impact force generated when two plate blocks of the door cabinet product are closed is reduced, and the buffering effect is improved. Due to the fact that the buffering piece is connected to the cup head, the number of parts installed on the arm body can be reduced, the size of the arm body can be shortened, the structure of the arm body is more compact, the structure of the hinge can be more compact, and convenience is improved when the hinge is installed.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a hinge. Background Art

[0002] A hinge is a device used to hinge doors, windows, cabinets, and other items that require mechanical connection. It is usually composed of two or more movable parts. The hinge is installed on items that need to rotate relative to each other, so that the items can rotate relative to each other. A cup hinge is a type of hinge. A cup hinge is usually installed between the door panel and the cabinet body of a cabinet product, so that the door panel and the cabinet body can rotate relative to each other. The cup hinge includes a cup head and an arm body. The cup head and the arm body are hinged and can rotate relative to each other. The cup hinge is usually equipped with a buffer component, which buffers the relative rotation of the cup head and the arm body to reduce the hinge. The impact force generated when the chain drives the door panel and the cabinet body to close plays a role in buffering and damping the rotation between the door panel and the cabinet body. In the current hinge, the buffer component is assembled on the arm body. The disadvantage of arranging the buffer component on the arm body is that the arm body has a large number of parts, and the arm body is usually provided with an adjustment component for adjusting the arm body length, resulting in the arm body needing to be designed to be larger in size to accommodate the parts. The cup head has fewer parts, resulting in it not needing a larger size. The volume difference between the arm body and the cup head exacerbates the imbalance in volume and weight between the arm body and the cup head. Therefore, in order to solve the above problems, the present invention provides a hinge. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a hinge.

[0004] To achieve the above-mentioned purpose, the present invention discloses a hinge, including a cup head, an arm body, and a buffer component, wherein the cup head is hinged to the arm body, and the buffer component is connected to the cup head. When the arm body and the cup head rotate toward a closed state, the buffer component abuts against the arm body, and the buffer component applies a buffering force to the arm body, and the buffering force is set in the opposite direction to the rotation direction of the arm body.

[0005] A further solution is that the buffer is a cylinder buffer, the cylinder of the buffer is connected to the cup head, and when the arm body and the cup head rotate toward the closed state, the rod of the buffer abuts against the arm body.

[0006] A further solution is that it further includes a spring, which is assembled with the cup head. When the arm body and the cup head rotate toward the open state, the elastic force of the spring acts on the cup head and the buffer to drive the buffer to reset.

[0007] A further solution is that it further includes a sliding member, which is slidably connected to the outer wall of the cup head, and the buffer member is connected between the cup head and the sliding member. When the arm body and the cup head rotate toward the closed state, the sliding member abuts against the arm body, thereby driving the sliding member to slide relative to the outer wall of the cup head, and the buffer member applies the buffering force to the arm body through the sliding member.

[0008] A further solution is that the sliding member is slidably connected to the outer bottom surface of the cup head, the bottom wall of the cup head is provided with a through hole, the sliding member is provided with an abutment portion, and the abutment portion is provided from the sliding member through the through hole, and when the arm body and the cup head are rotated toward the closed state, the abutment portion abuts against the arm body.

[0009] A further solution is that it also includes a spring, the sliding member is provided with a first assembly portion, the first assembly portion is protruded from the top surface of the sliding member, the spring is connected between the first assembly portion and the cup head, and when the arm body and the cup head are rotated toward the open state, the spring drives the buffer member to reset.

[0010] A further solution is that the spring is a compression spring, the assembly direction of the spring is arranged parallel to the reset sliding direction of the sliding member, one end of the spring is connected to the cup head, and the other end of the spring is connected to the first assembly part, and when the arm body and the cup head rotate toward the closed state, the sliding member compresses the spring.

[0011] A further solution is that the sliding member is provided with a second assembly portion, the second assembly portion is protruding from the top surface of the sliding member, and the buffer member is connected between the second assembly portion and the cup head.

[0012] A further solution is that the sliding member is provided with a reset portion, and the reset portion and the abutment portion are arranged at intervals along the rotation path of the arm body. The arm body and the reset portion abut against each other through the through hole. When the arm body and the cup head rotate toward the open state, the arm body abuts against the reset portion to drive the sliding member to reset.

[0013] A further solution is that it also includes a shell, which is fixedly mounted on the outside of the cup head, and the sliding member is slidably connected between the inner bottom surface of the shell and the outer bottom surface of the cup head, or the shell abuts against the spring, or the shell abuts against the buffer member.

[0014] A further solution is that it also includes an abutment member, which is fixedly connected to one end of the arm body close to the cup head, and when the arm body and the cup head are rotated toward the closed state, the abutment member abuts against the sliding member, and / or when the arm body and the cup head are rotated toward the open state, the abutment member abuts against the sliding member.

[0015] A further solution is that the outer bottom surface of the cup head is recessed with a first assembly groove or a second assembly groove, the first assembly groove passes through the outer side surface of the cup head, and the second assembly groove passes through the outer side surface of the cup head, the spring is installed in the first assembly groove, and the buffer is installed in the second assembly groove.

[0016] Compared with the prior art, the beneficial effect of the present invention is that: when in use, the cup head is screwed to one plate of the door cabinet product, and the arm body is screwed to the other plate of the door cabinet product, so that the two plates can rotate relative to each other, and the buffer is connected to the cup head. When the arm body and the cup head change from an open state to a closed state, the door panel of the door cabinet product is closed, and the buffer is in contact with the arm body. The buffer can apply a buffering force to the rotation of the arm body to reduce the impact force when the two plates of the door cabinet product collide when closing. Because the buffer is connected to the cup head, the buffer is connected to the cup head, which reduces the number of parts of the arm body, so that when designing the size of the arm body, the size of the arm body can be reduced, the structure of the arm body is more compact, the volume difference between the arm body and the cup head is reduced, the uniformity of the volume and weight between the arm body and the cup head is improved, and the convenience when installing the hinge is improved.

[0017] When the cup head and the arm body rotate from a closed state to an open state, the door panel of the door cabinet product opens, and the spring applies elastic force to the buffer to drive the sliding part and the buffer to reset. The buffer can apply buffering force to the arm body again, so that the buffer can provide buffering force to the hinge during repeated use, so that the buffer can provide buffering force for repeatedly closed door cabinet products.

[0018] Both the spring and the reset part have the function of driving the sliding part to reset. However, after the hinge has been used repeatedly for a long time, or the hinge is used in an environment with a lot of oil stains, the spring's reset drive for the sliding part will be at risk of failure, so that the spring cannot drive the sliding part to reset. In this case, the arm body can abut against the reset part to drive the sliding part to reset, thereby driving the sliding part and the buffer part to reset, reducing the risk of the sliding part failing to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a hinge from a first perspective; Figure 2 A schematic structural diagram of a hinge from a second perspective; Figure 3It is a structural schematic diagram of a hinge with its shell detached; Figure 4 A schematic diagram of the structure of a hinge in a detached state of the outer shell and the sliding member; Figure 5 A schematic diagram of the structure of a hinge in which the outer shell, sliding part, cup head and arm body are detached in sequence; Figure 6 This is a structural diagram of a hinge in which the outer shell, sliding part, hinge part, cup head and arm body are detached in sequence.

[0020] Figure 7 A schematic diagram of the structure of a hinge housing, a sliding part, and a cup head; Figure 8 A schematic structural diagram of a sliding member and an abutting member of a hinge at a first angle; Figure 9 A schematic structural diagram of a sliding member and an abutting member of a hinge at a second angle; Figure 10 A schematic structural diagram of a hinge with a buffer, a spring, a sliding member, and a housing in an assembled state at a first angle; Figure 11 A schematic structural diagram showing a second angle of view of an assembled state of a buffer member, a spring, a sliding member and a housing of a hinge; Figure 12 A schematic structural diagram of a hinge with a buffer, a spring, a sliding member, and a housing in an assembled state from a third angle; Figure 13 A schematic diagram of the structure of a hinged cup head and arm body in assembly state; Figure 14 A schematic structural diagram of a hinge in which an abutting member and an abutting portion are in abutment with each other; Figure 15 for Figure 14 A magnified schematic diagram of area A in the middle; Figure 16 It is a structural schematic diagram of a hinge in which an abutting member and a restoring portion are in abutment with each other; Figure 17 for Figure 16 A magnified schematic diagram of area B in the middle; Figure 18 It is a structural diagram of a hinge's abutment part, its detached state from the arm body, and its assembled state.

[0021] Markings: 11. Cup head; 12. Arm body; 13. Buffer; 34. Rod; 35. Cylinder; 14. Spring; 15. Sliding part; 16. Clearance hole; 17. Foot; 18. Top cap; 19. Through hole; 20. Abutment part; 21. First assembly part; 22. First assembly groove; 23. Second assembly part; 24. Second assembly groove; 25. Reset part; 26. Shell; 27. Sliding groove; 28. Hinge; 29. ​​Avoidance groove; 30. Hinge hole; 31. Hollow hole; 32. Limiting part; 33. Abutment; 36. Arc groove; 37. Raised part. DETAILED DESCRIPTION

[0022] In order to solve the problem that the buffer component is set on the arm body, resulting in a large number of parts installed on the arm body, which makes it necessary to design the arm body to be larger in size to install the buffer component. When the hinge is installed on door cabinets, doors and windows and other products, more space needs to be reserved for the installation of the large-sized arm body, causing inconvenience in installing the hinge. In order to reduce the length of the arm body, the present invention provides a hinge.

[0023] It should be noted that the closed state and open state of the cup head and the arm body described in the present invention, that is, the closed state and the open state of the hinge, refer to the open and closed states of the doors and windows when the hinge is installed on door cabinets, doors and windows and other products. Among them, the closed state refers to the closed state of the doors and windows of the above products, and the open state refers to the open state of the doors and windows of the above products. The angle between the arm body and the cup head in the closed state is close to 90°, and the angle between the arm body and the cup head in the open state is approximately 180°.

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is Figure 1 、 Figure 7 The position and orientation of the hinge shown in FIG. 1 define the nouns of the relevant orientations such as “top” and “bottom”; secondly, the present invention is based on Figure 7 The directions indicated by "X", "Y" and "Z" in the coordinate axes shown describe the sliding directions of the relevant components of the present invention; the above-mentioned directional nouns and related states are all for making the description of this embodiment clearer, and the installation of the hinge on the above-mentioned product cannot be used as a limitation on the technical features of the present invention.

[0025] The following will be combined Figure 1-18 The present invention is further described in detail with reference to the accompanying drawings.

[0026] A hinge includes a cup head 11, an arm body 12, and a buffer 13. The cup head 11 is hinged to the arm body 12, and the cup head 11 rotates relative to the arm body 12. When in use, the cup head 11 is screwed to one plate of the door cabinet product, and the arm body 12 is screwed to the other plate of the door cabinet product, so that the two plates can rotate relative to each other. The buffer 13 is connected to the cup head 11. When the arm body 12 and the cup head 11 are from the open state to the closed state, that is, the two plates rotate relative to each other and rotate in the direction of the 90° angle between the two plates, so that the door panel of the door cabinet product is closed, the buffer 13 is connected to the cup head 11. 3 abuts against the arm body 12, and the buffer member 13 can apply a reverse force to the arm body 12. The reverse force is a buffer force, and the direction of the buffer force is opposite to the relative rotation of the arm body 12 and the cup head 11. As a result, when the arm body 12 and the cup head 11 rotate toward the closed state, the buffer member 13 abuts against the arm body 12 and applies a reverse force, thereby reducing the impact force when the two panels of the door cabinet product collide when closing. Because the buffer member 13 is connected to the cup head 11, the number of parts installed on the arm body 12 is reduced, and the size of the arm body 12 is shortened.

[0027] The buffer 13 is connected to the cup head 11 to reduce the number of parts of the arm body 12, so that when designing the size of the arm body 12, the size of the arm body 12 can be reduced, the structure of the arm body 12 is made more compact, the volume difference between the arm body 12 and the cup head 11 is reduced, the uniformity of the volume and weight between the arm body 12 and the cup head 11 is improved, and the convenience of installing the hinge is improved.

[0028] This embodiment also includes a spring 14, which drives the buffer 13 to reset. The assembly direction of the spring 14 is parallel to the reset direction of the buffer 13. One end of the spring 14 is connected to the cup head 11, and the other end of the spring 14 abuts against the buffer 13. The two plates rotate from an angle of 180° to an angle of 90°. When the cup head 11 and the arm body 12 rotate from a closed state to an open state, that is, when the cup head 11 and the arm body 12 rotate from an angle of 180° to a angle of 90°, the spring 14 applies elastic force to the buffer 13, and the spring 14 drives the buffer 13 to reset. When the buffer 13 is reset, it means that when the cup head 11 and the arm body 12 rotate from an open state to a closed state, the buffer 13 can apply a buffering force to the arm body 12 again. Through the above arrangement, the buffer 13 can provide a buffering force to the hinge during repeated use.

[0029] This embodiment also includes a sliding member 15, and the buffer member 13 is a cylinder-type buffer. The outer wall of the cup head 11 is slidably connected to the sliding member 15, the rod 34 of the buffer member 13 is fixedly connected to the sliding member 15, and the cylinder 35 of the buffer member 13 is fixedly connected to the cup head 11. When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the arm body 12 applies a force to the sliding member 15, and the arm body 12 drives the sliding member 15 to slide on the outer wall of the cup head 11. At the same time, the moving sliding member 15 applies a force to the rod 34, so that the rod 34 moves relative to the cylinder 35, and the cylinder 35 provides a buffering force to the rod 34, and then the buffer member 13 can provide a buffering force in the opposite direction to the sliding direction of the sliding member 15, so that the buffer member 15 can apply a force to the arm body through the sliding member 15. The rotation of the arm body 12 provides a buffering force, and the buffering force is opposite to the rotation direction of the arm body 12, that is, the buffering force is a reverse force opposite to the direction of relative rotation of the arm body 12 and the cup head 11. The spring 14 is connected between the sliding member 15 and the cup head 11. When the arm body 12 and the cup head 11 rotate from the closed state to the open state, the spring 14 applies an elastic force to the sliding member 15, driving the sliding member 15 to slide relative to the cup head 11 in the direction of the sliding member 15 returning. The spring 14 drives the sliding member 15 to return, so that when the arm body 12 and the cup head 11 rotate from the open state to the closed state, the sliding member 15 can abut against the arm body 12 again to provide a buffering force for the rotation of the arm body 12 to the closed state again. The buffer 13 can provide a buffering force to the rotation of the arm body 12 through the sliding member 15.

[0030] When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the arm body 12 rotating toward the closed state abuts against the sliding member 15, and the buffer member 13 applies a buffering force to the arm body 12 through the sliding member 15. At the same time, the sliding member 13 drives the spring 14, so that the elastic potential energy of the spring 14 increases, so that when the arm body 12 rotates toward the open state, the spring 14 drives the sliding member 15 to return to its original position again.

[0031] Specifically, the top surface of the sliding member 15 of this embodiment is slidably connected to the outer bottom surface of the cup head 11. A through hole 19 is opened on the bottom wall of the cup head 11. The sliding member 15 is provided with an abutment portion 20. The abutment portion 20 extends from the top surface of the sliding member 15 toward the top. The abutment portion 20 is set from the sliding member 15 through the through hole 19. When the sliding member 15 is driven by the arm body 12, or when the sliding member 15 is driven by the spring 14, the abutment portion 20 moves in the through hole 19. When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the abutment portion 20 abuts against the arm body 12, thereby driving the sliding member 15 to move in the X direction. The buffer 13 applies a buffering force to the moving sliding member 15, so that the buffer 13 provides a buffering force to the rotation of the arm body 12 through the sliding member 15.

[0032] The sliding member 15 is provided with a first assembly portion 21, which extends from the sliding member 15 toward the top. The outer bottom surface of the cup head 11 is recessed with a first assembly groove 22, which passes through the outer side surface of the cup head 11. The spring 14 is connected between the first assembly portion 21 and the cup head 11, and the spring 14 is installed in the first assembly groove 22. When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the sliding member 15 is driven by the arm body 12 and slides toward the X direction on the outer bottom surface of the cup head 11. The first assembly portion 21 moves in the first assembly groove 22 and applies a force to the spring 14, so that the spring 14 has elastic potential energy.

[0033] The sliding member 15 is provided with a second assembly portion 23, which extends from the sliding member 15 toward the top. A second assembly groove 24 is recessed on the outer bottom surface of the cup head 11. The first assembly portion 21 and the second assembly portion 23 are spaced apart, and the first assembly groove 22 and the second assembly groove 24 are spaced apart. The second assembly groove 24 passes through the outer side surface of the cup head 11. The buffer 13 is installed in the second assembly groove 24. The second assembly portion 23 is connected to the rod 34 of the buffer 13 in the second assembly groove 24, and the second assembly portion 23 can move in the second assembly groove 24. When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the sliding member 15 is driven by the arm body 12 to slide in the X direction on the bottom surface of the cup head 11. The second assembly portion 23 slides in the X direction in the first assembly groove 22, and the buffer 13 applies a buffering force to the sliding member 15 through the second assembly portion 23, thereby applying a buffering force to the arm body 12.

[0034] When the arm body 12 and the cup head 11 rotate from the closed state to the open state, the arm body 12 separates from the sliding member 15, that is, the arm body 12 no longer applies abutting force to the sliding member 15, and the spring 14 with elastic potential energy can drive the sliding member 15 to slide in the opposite direction of the X direction, thereby resetting the sliding member 15. At the same time, the first assembly portion 21 and the second assembly portion 23 slide in the opposite direction of the X direction in the first assembly groove 22 and the second assembly groove 24 respectively.

[0035] The sliding member 15 of this embodiment is provided with a reset portion 25, which protrudes from the top of the sliding member 15, that is, the reset portion 25 is set to protrude toward the through hole 19. The reset portion 25 passes through the through hole 19 and can abut against the arm body 12. When the arm body 12 and the cup head 11 rotate from the closed state to the open state, the arm body 12 passes through the through hole 19 and abuts against the reset portion 25. The arm body 12 abuts against the reset portion 25 and drives the sliding member 15 to reset, that is, the sliding member 15 slides in the opposite direction of the X direction on the bottom surface of the cup head 11. The spring 14 and the reset portion 25 both play the role of driving the sliding member 1 5 reset function, and the role of providing the reset portion 25 is that if the hinge has been used repeatedly for a long time, or the hinge is used in an environment with a lot of oil stains, the spring 14 will have the risk of failure in driving the slider 15 to reset, so that the spring 14 cannot drive the slider 15 to reset, and the arm body 12 can abut against the reset portion 25 to drive the slider 15 to reset and slide in the opposite direction of the X direction, providing a starting force for the slider 15 to slide, overcoming the difficulty in starting the sliding caused by the stickiness of the oil stains on the slider 15, and reducing the risk of the slider 15 failing to reset.

[0036] This embodiment further includes a housing 26, which is fixedly mounted on the outside of the cup head 11. The slider 15 slides between the inner bottom surface of the housing 26 and the outer bottom surface of the cup head 11. One end of the spring 14 is connected to the first assembly portion 21, and the other end of the spring 14 abuts against the housing 26. The housing 26 is fixedly connected to the cup head 11, so that the spring 14 can abut between the slider 15 and the cup head 11. The buffer 13 is installed between the slider 15 and the cup head 11. The rod 34 of the buffer 13 abuts against the second assembly portion 23, and the circular bottom surface of the cylinder 35 of the buffer 13 abuts against the housing 26.

[0037] This embodiment further includes an abutment 33, which abuts against the abutment portion 20 of the sliding member 15. The abutment 33 is fixedly connected to one end of the arm body 12 close to the cup head 11. When the arm body 12 and the cup head 11 rotate from the open state to the closed state, the abutment 33 rotates relative to the cup head 11, and the rotating abutment 33 abuts against the abutment portion 20 of the sliding member 15, thereby driving the abutment 33 to slide between the outer bottom surface of the cup head 11 and the inner bottom surface of the shell 26 toward the arm body 12.

[0038] It should be further explained that the abutment 33 is also used to abut against the reset portion 25 of the sliding member 15. When the arm body 12 and the cup head 11 rotate from the closed state to the open state, the abutment 33 rotates relative to the cup head 11, and the rotating abutment 33 abuts against the reset portion 25 of the sliding member 15, thereby driving the sliding member 15 to slide between the outer bottom surface of the cup head 11 and the inner bottom surface of the shell 26 in a direction away from the arm body 12.

[0039] The top surface of the sliding member 15 is T-shaped, and the sliding member 15 is provided with a clearance hole 16. The clearance hole 16 is set from the top surface of the sliding member 15 to the bottom surface of the sliding member 15. The clearance hole 16 is set at a position close to the foot 17 of the sliding member 15. The abutment member 33 rotates back and forth in the clearance hole 16. The foot 17 of the sliding member 15 is tilted from the sliding member 15 toward the direction of the through hole 19. The abutment portion 20 is provided on the foot 17 of the sliding member 15. The abutment portion 20 is raised from the foot 17 toward the reset portion 25. The positioning portion 25 is connected to the side of the clearance hole 16 and is arranged opposite to the abutting portion 20. The reset portion 25 is a hook-shaped body arranged toward the abutting portion 20. The first assembly portion 21 and the second assembly portion 23 are respectively tilted from both sides of the top cap 18 of the sliding member 15 toward the cup head 11. The first assembly portion 21 extends into the first assembly groove 22 and is connected to the spring 14. The second assembly portion 23 extends into the second assembly groove 24 and is fixedly connected to the rod 34 of the buffer member 13. The foot 17 of the sliding member 15 slides back and forth in the through hole 19.

[0040] The inner bottom surface of the outer shell 26 is recessed with a sliding groove 27. The Y-axis width of the sliding groove 27 is adapted to the Y-axis width of the sliding member 15. The sliding groove 27 guides the sliding of the sliding member 15. When the outer shell 26 and the cup head 11 are assembled, the sliding member 15 can slide back and forth in the sliding groove 27, that is, the sliding member 15 can slide back and forth between the bottom surface of the sliding groove 27 and the outer bottom surface of the cup head 11.

[0041] This embodiment also includes a hinge 28 for hingedly connecting the cup head 11 and the arm body 12. The hinge 28 is U-shaped, and a recessed avoidance groove 29 is provided on the outer side surface of the shell 26. The avoidance groove 29 and the hinge 28 are adapted to each other. A hinge hole 30 is provided on the bottom surface of the avoidance groove 29. The hinge 28 is inserted into the avoidance groove 29 and passes through the hinge hole 30 to hinge the cup head 11 and the arm body 12.

[0042] A hollow hole 31 is formed on the bottom wall of the housing 26, and the hollow hole 31 corresponds to the position of the buffer 13. When the housing 26 and the cup head 11 are assembled, part of the buffer 13 is located in the hollow hole 31, and the side wall of the hollow hole 31 is provided with a limiting portion 32 for limiting the buffer 13. The limiting portion 32 is protruded from the side wall of the hollow hole 31, and the limiting portion 32 abuts against the side wall of the cylinder 35 of the buffer 13, so that the buffer 13 is limited between the lower side of the limiting portion 32 and the bottom surface of the hollow hole 31.

[0043] An arc-shaped groove 36 is recessed on one side of the abutment 33 facing the hinge 28. The extension direction of the arc-shaped groove 36 is parallel to the extension direction of the straight section of the hinge 28. The radius of the arc-shaped groove 36 is equal to the radius of the straight section of the hinge 28. When the abutment 33 is assembled with the arm body 12, the straight section of the hinge 28 is fixedly embedded in the arc-shaped groove 36. The abutment 33 is also provided with a protrusion 37, which is protruded outward from the top of the abutment 33. The protrusion 37 is used to abut against the abutment 20 and the reset portion 25.

[0044] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They cannot be used to limit the scope of protection of the present invention. Any modifications made based on the spirit of the main technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge, characterized in that: The invention comprises a cup head (11), an arm body (12), and a buffer member (13), wherein the cup head (11) is hinged to the arm body (12), and the buffer member (13) is connected to the cup head (11). When the arm body (12) and the cup head (11) rotate toward a closed state, the buffer member (13) abuts against the arm body (12), and the buffer member (13) applies a buffering force to the arm body (12), and the buffering force is set in the opposite direction to the rotation direction of the arm body (12).

2. A hinge according to claim 1, characterized in that: The buffer (13) is a cylinder-type buffer, the cylinder (35) of the buffer (13) is connected to the cup head (11), and when the arm body (12) and the cup head (11) rotate toward a closed state, the rod (34) of the buffer (13) abuts against the arm body (12).

3. The hinge according to claim 1, characterized in that: It also includes a spring (14), which is assembled with the cup head (11). When the arm body (12) and the cup head (11) are rotated toward the open state, the elastic force of the spring (14) acts on the cup head (11) and the buffer (13) to drive the buffer (13) to reset.

4. The hinge according to claim 1, characterized in that: The invention also includes a sliding member (15), wherein the sliding member (15) is slidably connected to the outer wall of the cup head (11), and the buffer member (13) is connected between the cup head (11) and the sliding member (15). When the arm body (12) and the cup head (11) are rotated toward the closed state, the sliding member (15) and the arm body (12) abut against each other, thereby driving the sliding member (15) to slide relative to the outer wall of the cup head (11), and the buffer member (13) applies the buffering force to the arm body (12) through the sliding member (15).

5. A hinge according to claim 4, characterized in that: The sliding member (15) is slidably connected to the outer bottom surface of the cup head (11); a through hole (19) is provided on the bottom wall of the cup head (11); the sliding member (15) is provided with an abutting portion (20); the abutting portion (20) is arranged from the sliding member (15) through the through hole (19); when the arm body (12) and the cup head (11) rotate toward a closed state, the abutting portion (20) abuts against the arm body (12).

6. The hinge according to claim 4, characterized in that: The invention also includes a spring (14), the sliding member (15) is provided with a first assembly portion (21), the first assembly portion (21) is protruding from the top surface of the sliding member (15), the spring (14) is connected between the first assembly portion (21) and the cup head (11), and when the arm body (12) and the cup head (11) are rotated toward the open state, the spring (14) drives the buffer member (13) to reset.

7. A hinge according to claim 6, characterized in that: The spring (14) is a compression spring. The assembly direction of the spring (14) is parallel to the reset direction of the sliding member (15). One end of the spring (14) is connected to the cup head (11), and the other end of the spring (14) is connected to the first assembly portion (21). When the arm body (12) and the cup head (11) are rotated toward the closed state, the sliding member (15) compresses the spring (14).

8. The hinge according to claim 4, characterized in that: The sliding member (15) is provided with a second assembly portion (23), the second assembly portion (23) is protruding from the top surface of the sliding member (15), and the buffer member (13) is connected between the second assembly portion (23) and the cup head (11).

9. The hinge according to claim 5, characterized in that: The sliding member (15) is provided with a reset portion (25), and the reset portion (25) and the abutment portion (20) are arranged at intervals along the rotation path of the arm body (12). The arm body (12) and the reset portion (25) abut against each other through the through hole (19). When the arm body (12) and the cup head (11) rotate toward the open state, the arm body (12) abuts against the reset portion (25) to drive the sliding member (15) to reset.

10. The hinge according to claim 6, characterized in that: The invention also includes a shell (26), wherein the shell (26) is fixedly mounted on the outside of the cup head (11), and the sliding member (15) is slidably connected between the inner bottom surface of the shell (26) and the outer bottom surface of the cup head (11), or the shell (26) abuts against the spring (14), or the shell (26) abuts against the buffer member (13).

11. The hinge according to claim 4, characterized in that: The cup holder (11) further comprises a contact member (33), wherein the contact member (33) is fixedly connected to one end of the arm body (12) close to the cup head (11); when the arm body (12) and the cup head (11) rotate toward a closed state, the contact member (33) contacts the sliding member (15); and / or when the arm body (12) and the cup head (11) rotate toward an open state, the contact member (33) contacts the sliding member (15).

12. The hinge according to claim 6, characterized in that: The outer bottom surface of the cup head (11) is recessed with a first assembly groove (22) or a second assembly groove (24), the first assembly groove (22) penetrates to the outer side surface of the cup head (11), and the second assembly groove (24) penetrates to the outer side surface of the cup head (11), the spring (14) is installed in the first assembly groove (22), and the buffer member (13) is installed in the second assembly groove (24).

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