CN107419986B

CN107419986B - Damping hinge and device provided with same

Info

Publication number: CN107419986B
Application number: CN201710749270.6A
Authority: CN
Inventors: 尤艳; 陈兴强; 梁少棠; 冷芬勇; 林嘉权
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-08-28
Filing date: 2017-08-28
Publication date: 2023-05-09
Anticipated expiration: 2037-08-28
Also published as: CN107419986A

Abstract

The invention discloses a damping hinge and a device provided with the damping hinge, and belongs to the technical field of ovens and parts thereof. The damping hinge provided by the invention comprises a first main body and a second main body which are rotationally connected, wherein the first main body is provided with a cavity, and a damper, an elastic piece and a connecting piece are arranged in the cavity; the elastic piece is connected with one end of the connecting piece, the other end of the elastic piece is fixed on the first main body, and the other end of the connecting piece is rotationally connected with the second main body; one end of the damper is provided with a limiting structure, the other end of the damper is provided with a guiding structure, and the connecting piece can drive the guiding structure to move when moving so as to compress or stretch the damper. The damping hinge solves the technical problems that the existing oven door can rebound immediately after being opened, can only stop at the maximum opening state and can not stop at any angle, and the like, and has low opening and closing noise and good user experience.

Description

Damping hinge and device provided with same

Technical Field

The invention relates to the technical field of ovens and parts thereof, in particular to a damping hinge and a device with the damping hinge.

Background

The oven is a common household appliance used for processing some wheaten foods, such as bread, pizza, egg tart and small biscuits, and also can be used for baking sweet potatoes, barbecue and the like.

At present, the oven body and the oven door are connected through a hinge structure, and are opened and closed by means of the elasticity or the tensile force of a spring, when the oven door needs to be opened, the oven door is pulled open, so that the spring is lengthened or compressed, and the opening of the oven door can be realized; when the cabinet door needs to be closed, the cabinet door can be closed due to the reset action of the spring only by releasing the cabinet door.

The oven with the structure has the following problems: the cabinet door can rebound immediately after being opened, and can only stop at the maximum opening state and can not stop at any angle, so that the noise is high when the cabinet door is closed, and the user experience is poor.

Disclosure of Invention

The invention aims to provide a damping hinge and a device provided with the damping hinge, which are used for solving the problems that an existing oven door can rebound immediately after being opened and can only stop in a maximum opening state and can not stop at any angle.

In order to achieve the purpose, on one hand, the invention adopts the following technical scheme:

a damping hinge comprises a first main body and a second main body which are connected in a rotating way, wherein the first main body is provided with a cavity, and a damper, an elastic piece and a connecting piece are respectively arranged in the cavity;

the elastic piece is connected with one end of the connecting piece, the other end of the elastic piece is fixed on the first main body, and the other end of the connecting piece is rotationally connected with the second main body;

one end of the damper is provided with a limiting structure, the other end of the damper is provided with a guiding structure, and the connecting piece can drive the guiding structure to move when moving so as to enable the damper to compress or stretch.

As a preferred embodiment of the present invention, the connection member includes a connection plate and two sheet-like structures respectively located at both sides of the connection plate.

As a preferable mode of the invention, each sheet structure is correspondingly provided with a first guide groove, a first mounting hole and a second mounting hole, and the first guide groove, the first mounting hole and the second mounting hole are respectively formed in a pair and correspondingly formed on two sheet structures.

As a preferable scheme of the invention, the first main body is of a strip-shaped structure with a U-shaped cross section, a second guide groove and a third guide groove are correspondingly formed on two opposite side walls of the first main body respectively, the limiting structure is arranged in the two second guide grooves in a penetrating way, and the guide structure is arranged in the two third guide grooves in a penetrating way.

As a preferable scheme of the invention, the limiting structure is a first fixed shaft, and the guiding structure is a first sliding shaft;

the first fixed shafts penetrate through the two first guide grooves and are fixed with the first main body through the second guide grooves, and the first sliding shafts penetrate through the two first mounting holes and can move in the third guide grooves.

As a preferable scheme of the invention, the elastic piece is a tension spring, one end of the tension spring is fixed on the first main body through a second fixed shaft, the other end of the tension spring is connected with the connecting piece through a second sliding shaft, and the second sliding shaft can move in the second guide groove.

As a preferred aspect of the present invention, the connection plate forms a receiving chamber with the first body, and the damper is disposed in the receiving chamber.

As a preferable mode of the invention, the second main body is provided with a lock catch, and the lock catch is hinged with the second main body through a first rotating shaft.

On the other hand, the invention adopts the following technical scheme:

the device with the damping hinge comprises a first body used for installing the first main body and a second body used for installing the second main body, wherein the second body is connected with the first body in an openable and rotatable manner through the damping hinge.

Further, the device is an oven, the first body is an oven cabinet, and the second body is an oven door.

The beneficial effects of the invention are as follows:

according to the damping hinge, the damper, the elastic piece and the connecting piece are respectively arranged in the cavity of the first main body, one end of the damper is provided with the limiting structure, the other end of the damper is provided with the guiding structure, and the connecting piece can drive the guiding structure to move when moving so as to compress or stretch the damper, so that the damping hinge can achieve a buffering effect, reduce noise and enable the damper to run more stably.

According to the device provided with the damping hinge, in particular to the oven with the damping hinge, the first main body is arranged on the oven cabinet body, the second main body is arranged on the oven door, the oven door can be stopped at any angle in the balancing stage a, and can be slowly closed in the slow closing stage c without quick rebound when being closed, so that the user experience is better.

Drawings

FIG. 1 is a schematic view of a hinge structure according to a preferred embodiment of the present invention;

fig. 2 is a front cross-sectional view of a hinge structure provided by a preferred embodiment of the present invention;

FIG. 3 is an exploded view of a hinge structure provided by a preferred embodiment of the present invention;

FIG. 4 is a schematic view of the structure provided in the preferred embodiment of the present invention except for the first body and the second body;

FIG. 5 is a schematic view of the structure of the first body provided in the preferred embodiment of the present invention;

FIG. 6 is a schematic view of a connector according to a preferred embodiment of the present invention;

FIG. 7 is a schematic view of a damper provided in a preferred embodiment of the present invention;

fig. 8 is a schematic view of an oven door closing process provided by a preferred embodiment of the present invention.

Marked in the figure as:

1. a first body; 2. a second body; 3. a connecting piece; 4. a damper; 5. a first fixed shaft; 6. a first sliding shaft; 7. a tension spring; 8. a second fixed shaft; 9. a second sliding shaft; 10. locking; 11. a first rotating shaft; 12. a second rotating shaft; 13. a third rotating shaft; 31. a connecting plate; 32. a sheet-like structure; 110. a cavity; 120. a second guide groove; 130. a third guide groove; 321. a first guide groove; 322. a first mounting hole; 323. and a second mounting hole.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Preferred embodiments:

the preferred embodiment discloses a damping hinge and an oven with the damping hinge, wherein the damping hinge is mainly but not limited to being applied to the oven and can be also applied to the places of opening and closing doors of microwave ovens, refrigerators and the like.

The first main body 1 of damping hinge is installed to the cabinet body of oven, and the second main body 2 of damping hinge is installed to the oven door, through this damping hinge of installation, can lean on self elasticity to close and close the process steadily, noiselessness after the oven door closes to certain angle.

As shown in fig. 1 to 4, the damping hinge includes first and second bodies 1 and 2 hinged through a third rotation shaft 13, a damper 4, an elastic member, a connecting member 3, a first fixed shaft 5, a second fixed shaft 8, a first sliding shaft 6, a second sliding shaft 9, a first rotation shaft 11, a second rotation shaft 12, and a locker 10.

As shown in fig. 5, the first main body 1 has a rectangular structure with a U-shaped cross section, and has a cavity 110, and two opposite side walls thereof are correspondingly provided with a second guide groove 120 and a third guide groove 130, that is, the two second guide grooves 120 are symmetrically arranged on the two side walls, and similarly, the two third guide grooves 130 are symmetrically arranged on the two side walls, and the second guide groove 120 and the third guide groove 130 are kidney grooves.

The damper 4, the elastic member and the connecting member 3 are respectively arranged in the cavity 110, wherein the elastic member is preferably a tension spring 7, and can also be an elastic body such as a rubber band, so that the stretching and compression functions can be realized.

As shown in fig. 6, the connecting piece 3 is an integral structure formed by a connecting flat plate 31 and two sheet structures 32 respectively located at two sides of the connecting flat plate 31, the connecting piece 3 is approximately U-shaped, and a first guide groove 321, a first mounting hole 322 and a second mounting hole 323 are correspondingly formed on each sheet structure 32, wherein the first guide groove 321 is a kidney-shaped groove, and the first mounting hole 322 and the second mounting hole 323 are round holes.

The connection plate 31 forms a receiving chamber with the first body 1, and the damper 4 is disposed in the receiving chamber. As shown in fig. 7, the damper 4 is provided with a limit structure at one end and a guide structure at the other end, and the limit structure is preferably but not limited to the first fixed shaft 5, and the guide structure is preferably but not limited to the first sliding shaft 6. One end of the damper 4 far away from the second body 2 is abutted on the first fixed shaft 5, one end near the second body 2 is abutted on the first sliding shaft 6, and the first sliding shaft 6 moves along the direction of the first body 1 along with the connecting piece 3 in the third guide groove 130, and in the moving process, the damper 4 can be compressed or stretched.

The installation process is specifically described as follows:

the first fixing shaft 5 is inserted into the pair of first guide grooves 321, then inserted into the pair of second guide grooves 120, and fixed with the first main body 1, the first sliding shaft 6 is inserted into the pair of first mounting holes 322, then inserted into the third guide grooves 130, and the first sliding shaft 6 can reciprocate in the third guide grooves 130 along the direction of the first main body 1;

one end of the tension spring 7 is fixed on the first main body 1 through a second fixed shaft 8, and the other end is connected with the connecting piece 3 through a second sliding shaft 9, so that the second sliding shaft 9 is positioned in a pair of second guide grooves 120 and can reciprocate in the second guide grooves 120;

the connecting piece 3 is hinged with the second main body 2 through the second rotating shaft 12, the first main body 1 and the second main body 2 are hinged through the third rotating shaft 13, the lock catch 10 is hinged with the second main body 2 through the first rotating shaft 11, the damping hinge can be fixed to a preset angle during installation through the arrangement of the lock catch 10, and the damping hinge is more convenient to assemble and disassemble;

the first body 1 is fixed to the toaster case and the second body 2 is mounted to the toaster door by screws, thereby completing the entire mounting process.

The closing process of the oven door is specifically described as follows:

as shown in fig. 8, the rotation process (i.e., the oven door closing process) of the second body 2 from the maximum opening angle with respect to the first body 1 sequentially includes: an equilibrium phase a, a critical off phase b and a critical off phase c;

wherein n1-n2 is a balance stage a, n2-n3 is a critical closing stage b, n3-n4 is a slow closing stage c, when the second main body 2 is at n1 position relative to the first main body 1, the opening angle of the hinge is maximum, the opening angle of the oven door is maximum, when the second main body 2 is at n4 position relative to the first main body 1, the opening angle of the hinge is minimum, and the oven door is in a closed state.

When the hinge is positioned in the angle a, namely in the balance stage of the hinge from n1 to n2, the first rotating shaft 13 is taken as a fulcrum, and the torque generated by the tension spring 7 is the same as the torque generated by the load around the first rotating shaft 13, so that the oven door can be stopped at any position in the range, the problem that the existing oven door can only be stopped in the maximum opening state is solved, the use is more convenient, the design is more humanized, and the manual external force is needed for closing the oven door at the moment;

when the hinge is in the angle b, namely, the hinge is in the critical closing stage from n2 to n3, the first rotating shaft 13 is taken as a fulcrum, and the torque generated by the tension spring 7 is larger than the torque generated by the load around the first rotating shaft 13, so that the oven door rapidly rotates in the closing direction within the range, and the oven door can be automatically closed without external force;

when the hinge is in the angle c, that is, the hinge is in the slow closing stage from n3-n4, the first rotating shaft 13 is taken as a fulcrum, the torque generated by the tension spring 7 is larger than the torque generated by the load around the first rotating shaft 120, meanwhile, in the door closing process, the first sliding shaft 6 moves in the third guide groove 130 along the direction of the tension spring 7, and the first sliding shaft 6 continuously pushes the damper 5 to compress, so that the damper 5 generates a blocking effect, and at the moment, the oven door rotates at a slow and uniform speed, so that the oven door is automatically closed, simultaneously, the oven door does not rebound quickly, and is smoothly closed.

Through the setting of above-mentioned damping hinge, the oven is mild at the in-process when closing the door, and noiseless has good buffering effect, and user experience is better.

Similarly, in the opening process of the oven door, the second main body 2 rotates from the position with the minimum opening angle to the direction far away from the first main body 1, when the rotation starts, the first sliding shaft 6 compresses the damper 5, and in the gradual opening process of the oven door, the blocking effect of the damper 5 is gradually reduced, so that the slow opening of the oven door is realized, and the problem that the service life of the whole oven is influenced due to the fact that the instant ejection and vibration are larger when the existing oven door is opened is solved.

In the description of the present invention, it should be understood that the terms "center," "length," "width," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing embodiments are merely preferred embodiments for implementing the present invention and are not limiting, and any modifications to the specific embodiments of the present invention or equivalent substitution of some technical features may be made without departing from the spirit of the technical solutions of the present invention, and shall be covered in the scope of the technical solutions claimed in the present invention. The scope of the invention also includes any alternatives that would occur to those skilled in the art without inventive effort.

Claims

1. The damping hinge is characterized by comprising a first main body (1) and a second main body (2) which are connected in a rotating way, wherein the first main body (1) is provided with a cavity (110), and a damper (4), an elastic piece and a connecting piece (3) are arranged in the cavity (110);

the elastic piece is connected with one end of the connecting piece (3), the other end of the elastic piece is fixed on the first main body (1), and the other end of the connecting piece (3) is rotationally connected with the second main body (2);

one end of the damper (4) is provided with a limiting structure, the other end of the damper is provided with a guiding structure, and the connecting piece (3) can drive the guiding structure to move when moving so as to enable the damper (4) to compress or stretch;

the connecting piece (3) comprises a connecting flat plate (31) and two sheet structures (32) respectively positioned at two sides of the connecting flat plate (31);

each sheet structure (32) is correspondingly provided with a first guide groove (321), a first mounting hole (322) and a second mounting hole (323);

the first main body (1) is of a strip-shaped structure with a U-shaped cross section, two opposite side walls of the first main body are correspondingly provided with a second guide groove (120) and a third guide groove (130), the limiting structure is arranged in the two second guide grooves (120) in a penetrating manner, and the guide structure is arranged in the two third guide grooves (130) in a penetrating manner;

the limiting structure is a first fixed shaft (5), and the guiding structure is a first sliding shaft (6);

the first fixed shafts (5) are arranged in the two first guide grooves (321) in a penetrating manner, and are fixed with the first main body (1) through the second guide grooves (120), and the first sliding shafts (6) are arranged in the two first mounting holes (322) in a penetrating manner and can move in the third guide grooves (130);

a lock catch (10) is arranged on the second main body (2), and the lock catch (10) is hinged with the second main body (2) through a first rotating shaft (11); the connecting plate (31) and the first main body (1) form a containing cavity, and the damper (4) is arranged in the containing cavity.

2. Damping hinge according to claim 1, characterized in that the elastic element is a tension spring (7), one end of the tension spring (7) is fixed on the first body (1) through a second fixed shaft (8), the other end is connected with the connecting element (3) through a second sliding shaft (9), and the second sliding shaft (9) can move in the second guide groove (120).

3. A device with a damping hinge according to claim 1 or 2, characterized in that it comprises a first body for mounting the first body (1) and a second body for mounting the second body (2), which is connected to the first body by means of the damping hinge in an openable and closable rotational manner.

4. The apparatus of claim 3, wherein the apparatus is an oven, the first body is an oven cabinet, and the second body is an oven door.