CN212614280U

CN212614280U - Damping hinge

Info

Publication number: CN212614280U
Application number: CN202021294496.5U
Authority: CN
Inventors: 王养成; 其他发明人请求不公开姓名
Original assignee: Guangdong Jino Hardware Industrial Co ltd
Current assignee: Guangdong Jino Hardware Industrial Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-02-26
Anticipated expiration: 2030-07-03

Abstract

The utility model relates to the technical field of door and window accessories, and discloses a damping hinge, which comprises a shell component, a hinge cup, a first linkage component, a second linkage component, a torsional spring, a bearing seat and a damper, wherein the hinge cup is close to the shell component by utilizing the restoring elastic force of the torsional spring to realize the closing of the hinge, the bearing seat is in transmission connection with the first linkage component or the second linkage component, the damper is directly connected with a first rotating shaft and the bearing seat, the first linkage component or the second linkage component can drive the bearing seat to slide in the closing process, and then the damper is pushed, the damping force generated by the damper reversely acts on the first linkage component or the second linkage component to form the resistance resisting the resetting of the torsional spring, the slow closing effect is realized, the generated noise is greatly reduced, the damper does not need to be abutted against the torsional spring, the stability of the product is ensured, and the service life is longer, improving the market competitiveness of the product.

Description

Damping hinge

Technical Field

The utility model relates to a door and window accessory technical field especially relates to a damping hinge.

Background

The hinges are mainly arranged on doors and windows, and more hinges are arranged on cabinets and furniture door plates and are mainly classified into stainless steel hinges and iron hinges according to materials; the damping hinge (also called a buffering hinge) is also provided for people to obtain better enjoyment, and is characterized in that the damping hinge has a buffering function when the cabinet door is closed, so that the noise generated by collision between the cabinet door and the cabinet body when the cabinet door is closed is reduced to the greatest extent.

In the existing hinge, in order to further reduce the noise of the hinge, a damper is adopted by a part of the hinge to overcome the resistance of a torsion spring, so that the noise reduction effect is realized. The damper has two conventional mounting modes, one mode is that a piston rod of the damper is abutted against a torsion spring, but when the damper is used and a hinge is opened or closed, the torsion spring needs to rotate, so that friction is generated at the position where the damper is abutted against the torsion spring, and the stability and the service life of the hinge are greatly reduced; the other type is that the shell component is provided with the backstop damper of the bent top plate, the structure is complex, and the bent top plate is damaged due to the fact that the torsion spring and the damper generate large force when the backstop damper is used, so that the integral use of the backstop damper is influenced, and the market requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the damping hinge can protect a damper and is simple in structure, production cost is effectively reduced, and stability of the damping hinge is improved.

In order to solve the technical problem, the utility model provides a damping hinge, including shell subassembly, hinge cup, first linkage piece, second linkage piece, torsional spring, bearing seat and attenuator, shell subassembly and hinge cup respectively with first linkage piece is rotated and is connected, shell subassembly and hinge cup respectively with second linkage piece is rotated and is connected, install first pivot on the shell subassembly, the torsional spring cover is located on the first pivot, the torsional spring is connected the first linkage piece and shell subassembly, is used for pretensioning the first linkage piece and shell subassembly, or the torsional spring is connected the second linkage piece and shell subassembly, is used for pretensioning the second linkage piece and shell subassembly;

the bearing seat and the damper are arranged in the shell component, the bearing seat is in transmission connection with the first linkage component or the second linkage component, the damper is connected with the first rotating shaft, when the hinge cup is closed, the first linkage component or the second linkage component drives the bearing seat to slide, and then the damper is pushed, so that the damper generates resistance to resetting of the torsion spring.

Preferably, the first rotating shaft is provided with a butting section, the winding part of the torsion spring is installed in a staggered manner with the butting section, and the damper is connected with the butting section.

Preferably, the damper includes a cylinder body, an elastic member, a piston and a piston rod, a main chamber is disposed inside the cylinder body, the elastic member and the piston are located inside the main chamber, one end of the elastic member abuts against the cylinder body, the other end of the elastic member abuts against the piston, the piston rod is disposed on the piston, the tail end of the piston rod extends outwards from the front end of the cylinder body, the tail end of the piston rod is connected with the first rotating shaft, and the cylinder body is connected with the bearing seat.

Preferably, the end of the piston rod is provided with a connecting ring, and the connecting ring is arranged on the abutting section.

Preferably, the end of the piston rod is provided with a butting block, and the butting block is provided with an arc surface connected with the butting section.

Preferably, the end of the piston rod is welded to the abutting section.

Preferably, the elastic member is an extension spring for limiting the piston rod to be pulled out, the support base is provided with a first transmission part connected with the front end of the cylinder body, and the first linkage member or the second linkage member is provided with a second transmission part abutted against the first transmission part so as to push the cylinder body to move in a direction away from the first rotating shaft;

or the elastic part is a compression spring for limiting the piston rod to be pressed in, the second linkage part is provided with a hook part, and the bearing seat is provided with a rear side plate connected with the rear end of the cylinder body and a hanging opening part connected with the hook part so as to push the cylinder body to move towards the direction close to the first rotating shaft.

Preferably, the damper includes a cylinder body, an elastic member, a piston and a piston rod, a main chamber is provided inside the cylinder body, the elastic member and the piston are located in the main chamber, one end of the elastic member is abutted against the cylinder body, the other end of the elastic member is abutted against the piston, the piston rod is disposed on the piston, the tail end of the piston rod extends outwards from the front end of the cylinder body, the rear end of the cylinder body is connected with the first rotating shaft, and the tail end of the piston rod is connected with the bearing seat.

Preferably, the outer wall of the rear end of the cylinder body is provided with a groove along the edge thereof, so that a boss with a reduced outer diameter is formed at the rear end of the cylinder body, and the boss is connected with the first rotating shaft.

Preferably, the outer wall of the rear end of the cylinder body is provided with a groove along the edge thereof, the groove is provided with a blocking and spacing member, and the blocking and spacing member is connected with the first rotating shaft.

Preferably, the elastic member is an extension spring for limiting the piston rod to be pulled out, the first linkage member or the second linkage member is provided with a second transmission part, and the bearing seat is provided with a rear side plate connected with the tail end of the piston rod and a first transmission part abutted against the second transmission part so as to push the piston rod to move in a direction away from the first rotating shaft;

or the elastic part is a compression spring for limiting the piston rod to be pressed in, the second linkage part is provided with a hook part, and the bearing seat is provided with a rear side plate connected with the tail end of the piston rod and a hanging opening part connected with the hook part so as to push the piston rod to move towards the direction close to the first rotating shaft.

Preferably, the supporting seat comprises a left side plate, a right side plate and a top plate, the left side plate is arranged on one side of the top plate, and the right side plate is arranged on the other side of the top plate, so that the left side plate, the right side plate and the top plate form an installation cavity for installing the damper.

Preferably, the housing component is provided with a limiting rod for limiting the front and back sliding of the bearing seat, and the top plate is abutted to the limiting rod.

Preferably, the top plate is provided with a sliding surface protruding in the direction away from the installation cavity, and the sliding surface is abutted to the limiting rod.

Preferably, one end of the first linkage member is rotatably connected with the housing assembly through the first rotating shaft, the other end of the first linkage member is rotatably connected with the hinge cup through the third rotating shaft, the second linkage member is rotatably connected with the housing assembly through the second rotating shaft, and the second linkage member is rotatably connected with the hinge cup through the fourth rotating shaft.

Preferably, the first transmission arm of the torsion spring is abutted against the housing assembly through the second rotating shaft, and the second transmission arm of the torsion spring is abutted against the first linkage member through the third rotating shaft.

Preferably, the support base is integrally formed with the damper.

Compared with the prior art, the utility model provides a damping hinge, its beneficial effect lies in:

in the utility model, the restoring elastic force of the torsional spring is used between the first linkage part and the shell component or between the second linkage part and the shell component, so that the hinge cup is close to the shell component to realize the closing of the hinge, wherein, the damper is directly connected with the first rotating shaft and the bearing seat, during the closing process, the first linkage part or the second linkage part can drive the bearing seat to slide to further push the damper, the damping force generated by the damper acts on the first linkage part or the second linkage part in a reverse way to form the resistance for resisting the resetting of the torsional spring, thereby playing the effect of slow closing, greatly reducing the generated noise, the damper does not need to be abutted with the torsional spring, not only leading the internal structure to be more compact, but also ensuring the stability of the product, the service life is longer, and the market competitiveness of the product is greatly improved.

Drawings

Fig. 1 is a schematic structural view of an open state of a damping hinge according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a closed state of a damping hinge according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of the damping hinge according to the first embodiment of the present invention without the first linking member.

Fig. 4 is a schematic structural diagram of the damping hinge according to the first embodiment of the present invention, in which the second linking member is removed.

Fig. 5 is an exploded view of a damping hinge according to a first embodiment of the present invention.

Fig. 6 is a schematic view of an assembly structure of a damper and a first rotating shaft in a damping hinge according to a first embodiment of the present invention.

Fig. 7 is a schematic view of another assembly structure of the damper and the first rotating shaft in the damping hinge according to the first embodiment of the present invention.

Fig. 8 is a schematic structural view of a bearing seat in a damping hinge according to a first embodiment of the present invention.

Fig. 9 is a schematic view of another perspective structure of fig. 8.

Fig. 10 is a schematic structural diagram of a second linking member in the damping hinge according to the first embodiment of the present invention.

Fig. 11 is a schematic structural view of an open state of the damping hinge according to the second embodiment of the present invention.

Fig. 12 is a schematic view of an internal structure of a damping hinge according to a second embodiment of the present invention.

Fig. 13 is a schematic structural view of another open state of the damping hinge according to the second embodiment of the present invention.

Fig. 14 is a schematic structural view of another closed state of the damping hinge according to the second embodiment of the present invention.

Fig. 15 is a schematic view of the internal structure of the damping hinge according to the third embodiment of the present invention.

Fig. 16 is a schematic structural diagram of a damper in a damping hinge according to a third embodiment of the present invention.

Fig. 17 is a schematic structural view of a spacer in a damping hinge according to a third embodiment of the present invention.

Fig. 18 is a structural schematic view of an open state of a damping hinge according to a fourth embodiment of the present invention.

Fig. 19 is a structural schematic diagram of a damping hinge according to a fourth embodiment of the present invention in a closed state.

Fig. 20 is a schematic structural view of another open state of the damping hinge according to the fourth embodiment of the present invention.

Fig. 21 is a schematic structural view of another closed state of the damping hinge according to the fourth embodiment of the present invention.

In the figure: 1. a housing assembly; 2. a hinge cup; 3. a first linkage member; 31. a second transmission part; 4, a second linkage piece; 41. a hook portion; 5. a torsion spring; 6. a bearing seat; 61. a rear side plate; 61a. a positioning section; 62. a hanging opening part; 63. a left side plate; 64. a right side plate; 65. a top plate; 65a sliding surface; 66. a mounting cavity; 67. a tube receiving section; 68. a first transmission unit; 7. a damper; 71. a cylinder body; 71a, a groove; 71b. a boss; 72. an elastic member; 73. a piston; 74. a piston rod; 74a, a connecting ring; 74b, a butting block; 75. a main chamber; 76. dividing a chamber; 8. a first rotating shaft; 8a, a butting section; 9. a second rotating shaft; 10. a third rotating shaft; 11. a fourth rotating shaft; 12. a limiting rod; 13. a baffle member.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1 to 10, a damping hinge according to a first embodiment of the present invention includes a housing assembly 1, a hinge cup 2, a first linkage member 3, a second linkage member 4, a torsion spring 5, a support base 6 and a damper 7, wherein the housing assembly 1 and the hinge cup 2 are rotatably connected to the first linkage member 3, the housing assembly 1 and the hinge cup 2 are rotatably connected to the second linkage member 4, the housing assembly 1 is mounted with a first rotating shaft 8, the torsion spring 5 is sleeved on the first rotating shaft 8, the torsion spring 5 connects the first linkage member 3 and the housing assembly 1 for pre-tensioning the first linkage member 3 and the housing assembly 1, or the torsion spring 5 connects the second linkage member 4 and the housing assembly 1 for pre-tensioning the second linkage member 4 and the housing assembly 1;

the bearing seat 6 with the attenuator 7 all locates in the shell subassembly 1, bearing seat 6 with first linkage 3 or the transmission of second linkage 4 links to each other, attenuator 7 with first pivot 8 links to each other, works as when hinge cup 2 is closed, first linkage 3 or second linkage 4 drives bearing seat 6 slides, and then promotes attenuator 7, so that attenuator 7 produces and opposes the resistance that torsional spring 5 resets.

Based on the damping hinge with the technical characteristics, the restoring elastic force of the torsion spring 5 acts between the first linkage part 3 and the shell component 1 or between the second linkage part 4 and the shell component 1, so that the hinge cup 2 is close to the shell component 1 to realize the closing of the hinge, wherein the damper 7 is directly connected with the first rotating shaft 8 and the bearing seat 6, in the closing process, the first linkage part 3 or the second linkage part 4 can drive the bearing seat 6 to slide, and further the damper 7 is pushed, the damping force generated by the damper 7 reversely acts on the first linkage part 3 or the second linkage part 4 to form resistance force resisting the resetting of the torsion spring 5, the slow closing effect is achieved, the generated noise is greatly reduced, and the damper 7 does not need to abut against the torsion spring 5, not only the internal structure is more compact, but also the stability of the product is ensured, the service life is longer, and the market competitiveness of the product is greatly improved.

Wherein, as shown in fig. 1 to fig. 2, one end of the first linkage member 3 is rotatably connected to the housing assembly 1 through the first rotating shaft 8, the first rotating shaft 8 provided with the torsion spring 5 is rotatably connected to the first linkage member 3, so as to reduce the number of rotating shafts, save installation space and reduce production cost, the other end of the first linkage member 3 is rotatably connected to the hinge cup 2 through a third rotating shaft 10, the second linkage member 4 is rotatably connected to the housing assembly 1 through a second rotating shaft 9, the second linkage member 4 is rotatably connected to the hinge cup 2 through a fourth rotating shaft 11, during the closing process of the hinge, the first transmission arm of the torsion spring 5 abuts against the housing assembly 1, and the second transmission arm of the torsion spring 5 can pull the first linkage member 3 or the second linkage member 4 to rotate due to the restoring elastic force of the torsion spring 5, as for how the torsion spring 5 acts on the first linking member 3 or the second linking member 4, the effect can be achieved through the existing structure, which is not the key point of the protection of the present invention, and the detailed description is not expanded herein.

In this embodiment, as shown in fig. 3 and 4, the first rotating shaft 8 is provided with a abutting section 8a, the winding portion of the torsion spring 5 is installed in a staggered manner with respect to the abutting section 8a, the damper 7 is connected with the abutting section 8a, the number of the torsion springs 5 is one, the winding portion of the torsion spring 5 is provided with a gap exposing the abutting section 8a, and the damper 7 can be directly connected with the abutting section 8a through the gap. It can be understood that the number of the torsion springs 5 may also be multiple, and the abutting section 8a is located between the winding portions of two adjacent torsion springs 5, that is, the abutting section 8a is not wound by the winding portions of the torsion springs 5.

Referring to the damper shown in fig. 16, in this embodiment, the damper 7 includes a cylinder 71, an elastic member 72, a piston 73, and a piston rod 74, a main chamber 75 is provided inside the cylinder 71, the elastic member 72 and the piston 73 are located in the main chamber 75, one end of the elastic member 72 abuts against the cylinder 71, the other end of the elastic member 72 abuts against the piston 73, the piston rod 74 is provided on the piston 73, and a distal end of the piston rod 74 extends outward from a front end of the cylinder 71, as shown in fig. 1, a distal end of the piston rod 74 is connected to the first rotating shaft 8, and the cylinder 71 is connected to the bearing seat 6; more specifically, the cylinder 71 is a cylinder, and the piston rod 74 can drive the piston 73 to slide back and forth relative to the main chamber 75, so as to oppose the elastic force of the elastic member 72 to generate a damping force.

In one embodiment, as shown in fig. 6, a connecting ring 74a is disposed at a distal end of the piston rod 74, and the connecting ring 74a is disposed on the abutting section 8a, that is, the distal end of the piston rod 74 is bent into a ring structure and movably sleeved on the first rotating shaft 8, so as to be mounted on the first rotating shaft 8, and the mounting is stable and convenient.

As an equivalent embodiment of this embodiment, as shown in fig. 7, the end of the piston rod 74 may further be provided with a butting block 74b, the butting block 74b is provided with an arc surface connected with the butting section 8a, and the arc surface can better abut against the circular sidewall surface of the first rotating shaft 8 by directly butting or fixedly connecting the butting block 74b with the first rotating shaft 8, so as to reduce the installation space.

As an equivalent embodiment of this embodiment, the end of the piston rod 74 can also be welded directly to the abutting section 8a, so that the firmness is better and the production cost can be reduced.

In this embodiment, the elastic member 72 is a compression spring for limiting the piston rod 74 from being pressed in, as shown in fig. 10, the second linkage 4 is provided with a hook portion 41 at one end close to the housing assembly 1, as shown in fig. 8 and 9, the bearing seat 6 is provided with a rear side plate 61 connected to the rear end of the cylinder 71 and a hanging opening portion 62 connected to the hook portion 41 for pushing the cylinder 71 to move in the direction close to the first rotating shaft 8, as shown in fig. 1 and 2, when the hinge is closed, the hook portion 41 can rotate around the second rotating shaft 9, the bearing seat 6 is pulled to move in the direction close to the first rotating shaft 8 through the hanging opening portion 62 for pushing the cylinder 71 to move, the piston rod 74 is fixed under the limitation of the first rotating shaft 8, so that the damper 7 generates a damping force to act on the second linkage 4 in a reverse direction, slowing down the rotating speed of the motor to achieve the effect of noise reduction.

In this embodiment, as shown in fig. 8 and 9, the support base 6 includes a left side plate 63, a right side plate 64, and a top plate 65, the left side plate 63 is disposed on one side of the top plate 65, the right side plate 64 is disposed on the other side of the top plate 65, so that the left side plate 63, the right side plate 64, and the top plate 65 form a mounting cavity 66 for mounting the damper 7, the mounting cavity 66 is U-shaped, the rear side plate 61 seals the rear end of the mounting cavity 66 to realize the rear end abutment with the cylinder 71, and the support base 6 abuts against the inner wall surface of the housing assembly 1 to surround the mounting cavity 66, so as to limit the damper 7 from being detached from the mounting cavity 66.

Furthermore, the connecting position between the left side plate 63 and the top plate 65 and the connecting position between the right side plate 64 and the top plate 65 are provided with reinforcing ribs, the reinforcing ribs can be formed by stamping, namely the mounting cavity 66 is formed by stamping, and the overall strength is further ensured. The rear side plate 61 is provided with a positioning part 61a at the opening position of the mounting cavity 66, the positioning part 61a protrudes 0.5-3 mm relative to the plane where the opening of the mounting cavity 66 is located, the height of the whole rear side plate 61 can be controlled in the production process of the bearing seat 6, the product tolerance is improved, the rear side plate is suitable for automatic mounting, the height value of the rear side plate 61 reference is provided, the whole identity of parts is improved, the identity of the parts is more controllable in process treatment in the bending process, and the rear side plate is suitable for automatic processing.

In the present embodiment, as shown in fig. 1 to 5, the housing assembly 1 is provided with a limiting rod 12 for limiting the forward and backward sliding of the bearing block 6, the limiting rod 12 is spanned between two side plates of the housing assembly 1, the top plate 65 abuts against the limiting rod 12 to limit the bearing block 6 from being detached from the housing assembly 1, that is, the bearing block 6 can only move forward and backward inside the housing assembly 1 under the action of the limiting rod 12. Furthermore, it will be appreciated that the limit rod 12 may also abut directly against the cylinder 71, also limiting the disengagement of the damper 7 from the housing assembly 1.

Further, as shown in fig. 8, the top plate 65 is provided with a sliding surface 65a protruding in a direction away from the mounting cavity 66, the sliding surface 65a abuts against the limiting rod 12, the sliding surface 65a is a strip-shaped surface and is located at the center of the top plate 65, the area of the sliding surface 65a is smaller than that of the top plate 65, so that the surface of the top plate 65 cannot be damaged and is smoother in the whole structure in the action process, especially when the sliding contact with the limiting rod 12 is performed, the sliding surface 65a with a smaller area can reduce friction force and provide positive bearing for the whole tube of the damper 7, and the whole performance is more stable.

Further, as shown in fig. 4, 8 and 9, the left side plate 63 and the right side plate 64 are both provided with pipe fixing portions 67 extending outwards, and the pipe fixing portions 67 abut against the inner side wall of the housing assembly 1 at two sides, so that the support base 6 can slide back and forth along the housing assembly 1, and the phenomenon of left and right swinging can be avoided.

As an equivalent embodiment of this embodiment, the first transmission arm of the torsion spring 5 may also be abutted against the housing assembly 1 through the second rotation shaft 9, while the second transmission arm of the torsion spring 5 is abutted against the first linkage member 3 through the third rotation shaft 10, and the hinge is closed by pulling the third rotation shaft 10.

As an equivalent embodiment of this embodiment, the first transmission arm of the torsion spring 5 may also be abutted to the housing assembly 1 through the second rotation shaft 9, and the second transmission arm of the torsion spring 5 is abutted to the transmission shaft on the second linkage member 4 through the transmission shaft, and the spring force acts on the transmission shaft to push the second linkage member 4 to rotate, so as to close the hinge. In the present embodiment, the support base 6 and the damper 7 are integrally formed, or the support base 6 and the damper 7 are a mechanism assembly composed of two different parts.

Example two

The main difference between this embodiment and the first embodiment is the specific structure of the elastic element 72 and the support seat 6, and the structure of the rest parts is not described herein again.

As shown in fig. 11 to 12, the elastic member 72 is an extension spring for limiting the extension of the piston rod 74, the bearing seat 6 is provided with a first transmission portion 68 connected to the front end of the cylinder 71, the first linkage member 3 is provided with a second transmission portion 31 abutting against the first transmission portion 68 to push the cylinder 71 to move away from the first rotating shaft 8, the first transmission portion 68 is a guide inclined surface, the second transmission portion 31 is provided with an arc surface abutting against the guide inclined surface, when the hinge is closed, the first linkage member 3 rotates along the first rotating shaft 8, the second transmission portion 31 can abut against the first transmission portion 68 to push the first transmission portion to move away from the first rotating shaft 8 to push the cylinder 71 to move, the piston rod 74 is fixed under the limitation of the first rotating shaft 8, so that the damper 7 generates a damping force to act on the first linkage member 3 in a reverse direction, slowing down the rotating speed of the motor to achieve the effect of noise reduction.

It can be understood that, because the moving directions of the first linking member 3 and the second linking member 4 are the same, the second linking member 4 can also be provided with the same structure to push the supporting seat 6 to move away from the first rotating shaft 8, and the same purpose can be achieved. As shown in fig. 13 to 14, the second transmission portion 31 may be disposed on the second linking member 4, when the second linking member 4 rotates along the second rotating shaft 9, the second transmission portion 31 can press the first transmission portion 68 to push it to move away from the first rotating shaft 8, so as to push the cylinder 71 to move, and the piston rod 74 is fixed under the limitation of the first rotating shaft 8, so that the damper 7 generates a damping force to act on the second linking member 4 in a reverse direction, and slows down the rotation speed thereof, thereby achieving a noise reduction effect.

In this embodiment, the bearing seat 6 is not assembled with the rear end of the cylinder 71, so that the rear side plate 61 is not required, the front end of the mounting cavity 66 is sealed by the first transmission portion 68, and the first transmission portion 68 is provided with a clearance groove for the piston rod 74 to pass through, thereby ensuring that the piston rod 74 can be connected with the first rotating shaft 8.

EXAMPLE III

The main difference between this embodiment and the first embodiment is that the damper 7 is disposed at an opposite position, and the structures of the rest parts are not described herein again.

As shown in fig. 15 to 17, the damper 7 includes a cylinder 71, an elastic member 72, a piston 73, and a piston rod 74, a main chamber 75 is provided inside the cylinder 71, the elastic member 72 and the piston 73 are located in the main chamber 75, one end of the elastic member 72 abuts against the cylinder 71, the other end of the elastic member 72 abuts against the piston 73, the piston rod 74 is provided on the piston 73, and a distal end of the piston rod 74 extends outward from a front end of the cylinder 71, as shown in fig. 15, a rear end of the cylinder 71 is connected to the first rotating shaft 8, and a distal end of the piston rod 74 is connected to the bearing 6. The cylinder 71 is a cylinder, and the bearing seat 6 pushes the piston rod 74, so as to drive the piston 73 to slide back and forth relative to the main chamber 75, and to oppose the elastic force of the elastic member 72 to generate a damping force.

As shown in fig. 16, in one embodiment, the groove 71a is annular, so that a raised portion 71b with a reduced outer diameter is formed at the rear end of the cylinder 71, the raised portion 71b is connected to the first rotating shaft 8, the raised portion 71b can play a role in strengthening, so that the rear end of the cylinder 71 is not prone to deformation and damage when being stressed, the first rotating shaft 8 can be in contact with the raised portion 71b, or can penetrate through the raised portion 71b perpendicular to the axial direction of the cylinder 71, the raised portion 71b defines a sub-chamber 76 communicated with the main chamber 75 at the rear end of the cylinder 71, the end of the elastic member 72 can be in contact with the sub-chamber 76, so as to play a role in a tube for the elastic member 72, thereby prolonging the service life of the elastic member 72, the groove 71a can save a part of space, and saves the internal installation space for the damper 7 and other components to cooperate.

As an equivalent embodiment of this embodiment, as shown in fig. 17, a ring-shaped blocking member 13 is provided in the groove 71a, the height of the blocking member 13 is greater than the height of the groove 71a, and the first rotating shaft 8 abuts against or is fixedly connected to the blocking member 13, so that the connection strength between the cylinder 71 and the first rotating shaft 8 can be further improved.

In this embodiment, as shown in fig. 15, the elastic member 72 is a compression spring for limiting the piston rod 74 from being pressed in, the second linking member 4 is provided with a hook portion 41, and the holder 6 is provided with a rear plate 61 connected to the end of the piston rod 74 and a hanging opening portion 62 connected to the hook portion 41, so as to push the piston rod 74 to move toward the first rotating shaft 8. When the hinge is closed, the hook portion 41 can rotate around the second rotating shaft 9, the bearing seat 6 is pulled by the hanging opening portion 62 to move towards the direction close to the first rotating shaft 8, so that the piston rod 74 is pushed to move, the cylinder body 71 is fixed under the limitation of the first rotating shaft 8, the damper 7 generates damping force to reversely act on the second linkage member 4, the rotating speed of the second linkage member is reduced, and the noise reduction effect is achieved.

Example four

The main difference between this embodiment and the third embodiment is the specific structure of the elastic element 72 and the support seat 6, and the structure of the rest parts is not described herein again.

As shown in fig. 18 to 19, the elastic member 72 is an extension spring for limiting the piston rod 74 to be pulled out, the first linkage member 3 is provided with a second transmission portion 31, the bearing seat 6 is provided with a rear side plate 61 connected to the end of the piston rod 74 and a first transmission portion 68 abutting against the second transmission portion 31 for pushing the piston rod 74 to move away from the first rotating shaft 8, the first transmission portion 68 is a guide inclined surface, the second transmission portion 31 is provided with an arc surface abutting against the guide inclined surface, the rear side plate 61 is connected to the piston rod 74, when the hinge is closed, the first linkage member 3 rotates along the first rotating shaft 8, the second transmission portion 31 can abut against the first transmission portion 68 to push it to move away from the first rotating shaft 8, and the piston rod 74 is pulled out through the rear side plate 61, the cylinder 71 is fixed under the restriction of the first rotating shaft 8, so that the damper 7 generates a damping force to act on the first linkage member 3 in a reverse direction, the rotating speed of the first linkage member is slowed, and a noise reduction effect is achieved.

It can be understood that, because the moving directions of the first linking member 3 and the second linking member 4 are the same, the second linking member 4 can also be provided with the same structure to push the supporting seat 6 to move away from the first rotating shaft 8, and the same purpose can be achieved. As shown in fig. 20 to 21, the second transmission portion 31 may be disposed on the second linking member 4, when the second linking member 4 rotates along the second rotating shaft 9, the second transmission portion 31 can press the first transmission portion 68 to push it to move away from the first rotating shaft 8, so as to push the piston rod 74 to be pulled out, and the cylinder 71 is fixed under the restriction of the first rotating shaft 8, so that the damper 7 generates a damping force to act on the second linking member 4 in a reverse direction, and slows down the rotation speed thereof, thereby achieving a noise reduction effect.

The main working principle of the hinge in the above embodiments is as follows: in the process of closing the hinge, the restoring elastic force of the torsion spring 5 pulls the first linkage part 3 or the second linkage part 4 rotates, then the damper 7 is pushed by the bearing seat 6 under the limitation of the first rotating shaft 8, the damper 7 generates damping force, and the damping force acts in reverse direction on the first linkage part 3 or the second linkage part 4, namely, the restoring elastic force of the torsion spring 5 generates resistance, so that the buffering effect is achieved.

To sum up, the utility model discloses the aforesaid embodiment provides a damping hinge has following advantage: through first pivot 8 with the mode that attenuator 7 is connected, attenuator 7 with torsional spring 5 need not mutual friction and rotates, and inner structure is simple compact, has improved attenuator 7's life greatly, and passes through first linkage 3 or second linkage 4 with bearing seat 6 cooperatees, realizes promoting fast attenuator 7 makes attenuator 7 produces the opposition torsional spring 5 recovered resistance, overall structure's stability and intensity are better, reduce the overall cost of product, improve the competitiveness in its market.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A damping hinge is characterized by comprising a shell component, a hinge cup, a first linkage component, a second linkage component, a torsional spring, a bearing seat and a damper, wherein the shell component and the hinge cup are respectively and rotatably connected with the first linkage component;

2. The damped hinge according to claim 1 wherein the first shaft has a receiving section, the torsion spring has a winding portion mounted offset from the receiving section, and the damper is coupled to the receiving section.

3. The damping hinge according to claim 2, wherein the damper includes a cylinder, an elastic member, a piston, and a piston rod, a main chamber is disposed inside the cylinder, the elastic member and the piston are located inside the main chamber, one end of the elastic member abuts against the cylinder, the other end of the elastic member abuts against the piston, the piston rod is disposed on the piston, and the end of the piston rod extends outward toward the front end of the cylinder, the end of the piston rod is connected to the first rotating shaft, and the cylinder is connected to the bearing seat.

4. The damped hinge according to claim 3 wherein the end of the piston rod is provided with a connecting ring, the connecting ring being disposed on the abutting section.

5. The damped hinge according to claim 3, wherein the end of the piston rod is provided with a receiving block, and the receiving block is provided with a circular arc surface connected with the receiving section.

6. The damped hinge according to claim 3 wherein the distal end of the piston rod is welded to the abutment section.

7. The damping hinge as claimed in any one of claims 3 to 6, wherein the elastic member is a tension spring for limiting the piston rod from being pulled out, the supporting base is provided with a first transmission portion connected to the front end of the cylinder, and the first linkage member or the second linkage member is provided with a second transmission portion abutting against the first transmission portion for pushing the cylinder to move away from the first rotation axis;

8. The damping hinge according to claim 1, wherein the damper includes a cylinder, an elastic member, a piston, and a piston rod, a main chamber is disposed inside the cylinder, the elastic member and the piston are located inside the main chamber, one end of the elastic member abuts against the cylinder, the other end of the elastic member abuts against the piston, the piston rod is disposed on the piston, and the end of the piston rod extends outward toward the front end of the cylinder, the rear end of the cylinder is connected to the first rotating shaft, and the end of the piston rod is connected to the bearing seat.

9. The damped hinge according to claim 8, wherein the outer wall of the rear end of the cylinder body is formed with a groove along an edge thereof so that a boss portion having a reduced outer diameter is formed at the rear end of the cylinder body, and the boss portion is connected to the first rotating shaft.

10. The damped hinge according to claim 9, wherein the outer wall of the rear end of the cylinder body is formed with a groove along an edge thereof, the groove being provided with a stopper spacer, and the stopper spacer being connected to the first rotating shaft.

11. The damped hinge according to any one of claims 8 to 10, wherein the elastic member is an extension spring for limiting the piston rod from being pulled out, the first linking member or the second linking member is provided with a second transmission portion, the bearing seat is provided with a rear side plate connected to a distal end of the piston rod and a first transmission portion abutting against the second transmission portion, so as to push the piston rod to move away from the first rotation axis;

12. The damped hinge according to claim 1 wherein the holder includes a left side plate, a right side plate and a top plate, the left side plate is disposed on one side of the top plate and the right side plate is disposed on the other side of the top plate, such that the left side plate, the right side plate and the top plate form a mounting cavity for mounting the damper.

13. The damped hinge according to claim 12 wherein the housing assembly includes a stop bar for limiting the back and forth sliding movement of the retainer, the top plate abutting the stop bar.

14. The damped hinge according to claim 13 wherein said top plate defines a sliding surface projecting away from said mounting cavity, said sliding surface abutting said stop bar.

15. The damped hinge of claim 1 wherein one end of the first linkage member is rotatably connected to the housing assembly via the first rotating shaft, the other end of the first linkage member is rotatably connected to the hinge cup via a third rotating shaft, the second linkage member is rotatably connected to the housing assembly via a second rotating shaft, and the second linkage member is rotatably connected to the hinge cup via a fourth rotating shaft.

16. The damped hinge according to claim 15 wherein the first drive arm of the torsion spring is in contact with the housing assembly via the second pivot and the second drive arm of the torsion spring is in contact with the first linkage via the third pivot.

17. The damped hinge according to claim 1 wherein the receptacle is integrally formed with the damper.