CN111119627A

CN111119627A - Damping hinge and horizontal freezer

Info

Publication number: CN111119627A
Application number: CN201811286759.5A
Authority: CN
Inventors: 盛遵丰; 丁剑波; 潘自杰; 李建新; 赵旭日
Original assignee: Qingdao Haier Special Refrigerator Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-05-08

Abstract

The invention discloses a damping hinge and a horizontal refrigerator. A damping hinge, comprising a first hinge part and a second hinge part, the first hinge part and the second hinge part are hinged together by a hinge rotating shaft, and it is characterized in that it also includes a buffer damping component, and the buffer damping component includes A connecting rod assembly, a buffer spring, a guide plate, a beam and a hydraulic damper; the connecting rod assembly is used to convert the rotational motion of the first hinge part into driving the guide plate to move back and forth, and the beam is arranged on the second connecting part Above, the buffer spring is sleeved on the guide plate and pressed between the upper end of the guide plate and the beam, and the lower end of the guide plate is used to drive the hydraulic damper to act. The damping hinge can both buffer the door and assist the door to improve the user experience.

Description

Damping hinge and horizontal refrigerator

Technical Field

The invention relates to refrigeration equipment, in particular to a damping hinge and a horizontal refrigerator.

Background

At present, horizontal freezer is generally used widely because of its storing volume is big, and horizontal freezer generally includes the cabinet body and a door body, and the door body is being installed on the cabinet body through the hinge, and because horizontal freezer whole volume is great, correspondingly, the size and the weight of the door body also increase thereupon, and in order to realize when closing the door cushion the door body in order to avoid the door body to close in the twinkling of an eye and produce great sound and the vibrations of closing the door, the hinge disposes spring or attenuator usually, also has the condition that spring and attenuator dispose simultaneously, for example: chinese patent No. 201721298110.6 discloses a damping hinge and freezer, dispose spring and attenuator simultaneously between first hinge and second hinge promptly, when first hinge rotated for the second hinge, first hinge produced power to spring and attenuator simultaneously, however, when using, spring and attenuator are independent each other, have the function of buffering when closing the door, but can't provide the function of helping hand when opening the door, lead to user experience nature relatively poor. The invention aims to solve the technical problem of how to design a hinge capable of buffering door closing and assisting door opening to improve user experience.

Disclosure of Invention

The invention provides a damping hinge and a horizontal refrigerator, which can realize that the damping hinge can open a door in a buffering way and can open the door in a boosting way so as to improve the user experience.

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

a damping hinge comprises a first hinge part and a second hinge part which are hinged together through a hinge rotating shaft, and further comprises a buffering damping assembly, wherein the buffering damping assembly comprises a connecting rod assembly, a buffering spring, a guide plate, a cross beam and a hydraulic damper; the connecting rod assembly is used for converting the rotating motion of the first hinge part into driving the guide plate to reciprocate, the cross beam is arranged on the second connecting part, the buffer spring is sleeved on the guide plate and pressed between the upper end part of the guide plate and the cross beam, and the lower end part of the guide plate is used for driving the hydraulic damper to act.

Further, hydraulic damper includes shell, piston rod, piston and first damping spring, be formed with the piston cavity in the shell, the piston is fixed on the piston rod, the piston is located in the piston cavity, the piston rod is followed stretch out and extend to in the piston cavity the outside of shell, first damping spring is located in the piston cavity and pressure be in the piston with between the shell, it has hydraulic oil to fill in the piston cavity.

Furthermore, a slidable partition plate is arranged in the shell, the partition plate divides the shell into an adjusting cavity and the piston cavity, the partition plate is provided with a first through hole, the upper end cover of the shell is provided with a second through hole, the piston rod sequentially penetrates through the first through hole and the second through hole and extends out of the shell, a sealing ring is fixedly arranged on the partition plate, and the sealing ring is positioned in the piston cavity and sleeved on the piston rod; and a second damping spring is arranged in the adjusting cavity and pressed between the partition plate and the upper end cover of the shell.

Further, the outer periphery circle of piston still is provided with the sealing washer.

Furthermore, the second hinge portion is further provided with a mounting seat, the shell is arranged on the mounting seat, the mounting seat is further provided with a slidable sliding block, and the sliding block is located between the free end portion of the piston rod and the lower end portion of the guide plate.

Furthermore, the upper part of the sliding block is provided with an insertion groove, the lower end part of the guide plate is inserted into the insertion groove, and the lower part of the sliding block is provided with a housing structure which covers the outside of the hydraulic damper.

Furthermore, a plurality of hydraulic dampers are arranged on the mounting seat.

Furthermore, the connecting rod assembly comprises a first connecting rod and a second connecting rod, the upper end of the first connecting rod is hinged to the first hinge portion through a first connecting shaft, the lower end of the first connecting rod is hinged to the middle of the second connecting rod through a second connecting shaft, the upper end of the second connecting rod is hinged to the second hinge portion through a third connecting shaft, and the lower end of the second connecting rod is hinged to the guide plate through a fourth connecting shaft.

Furthermore, a gap structure used for avoiding the third connecting shaft is further arranged in the middle of the first connecting rod.

The invention also provides a horizontal refrigerator, which comprises a refrigerator body, a door body and the damping hinge, wherein the first hinge part of the damping hinge is connected to the door body, and the second hinge part of the damping hinge is connected to the refrigerator body.

Compared with the prior art, the invention has the advantages and positive effects that: the hydraulic damper is arranged at the bottom of the guide plate, when the door is closed, the first hinge part rotates along with the door body to drive the guide plate to move downwards through the connecting rod assembly, and the guide plate presses the hydraulic damper correspondingly to achieve the effect of damping door closing; when a user opens the door body, the buffer spring extends to transmit the spring force to the door body through the guide plate, and the hydraulic damper located below does not produce a damping effect in the door opening process, so that the door body can be opened under the assistance of the door, and the damping hinge can be opened through buffering and the assistance of the door, so that the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a damped hinge of the present invention;

FIG. 2 is an exploded view of an embodiment of the damped hinge of the present invention;

FIG. 3 is a schematic structural view of a hydraulic damper in an embodiment of a damped hinge of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the damping hinge of the present embodiment includes a first hinge portion 1 and a second hinge portion 2, where the first hinge portion 1 and the second hinge portion 2 are hinged together through a hinge rotating shaft 101, and further includes a damping buffer assembly, where the damping buffer assembly includes a link assembly 3, a damping spring 4, a guide plate 5, a cross beam 6, and a hydraulic damper 7; the connecting rod assembly 3 is used for converting the rotating motion of the first hinge part 1 into driving the guide plate 5 to reciprocate, the cross beam 6 is arranged on the second connecting part 2, the buffer spring 4 is sleeved on the guide plate 5 and pressed between the upper end part of the guide plate 5 and the cross beam 6, and the lower end part of the guide plate 5 is used for driving the hydraulic damper 7 to act.

Specifically, in the damping hinge of the present embodiment, the first hinge portion 1 is connected to a door body of the horizontal refrigerator, the second hinge portion 2 is connected to a cabinet body of the horizontal refrigerator, the guide plate 5 moves downward in the door closing process, the guide plate 5 is further configured to drive the hydraulic damper to act in the process of compressing the buffer spring 4, specifically, while the guide plate 5 compresses the buffer spring 4, the lower end portion of the guide plate 5 correspondingly presses the piston rod 72 of the hydraulic damper 7, so that the hydraulic damper 7 cooperates with the buffer spring 4 to buffer the door body in the door closing process; and at the in-process that opens the door, buffer spring 4 extends and gives the door body with spring force transmission through baffle 5 to realize the helping hand and open the door, and at this in-process, baffle 5 rises and keeps away from hydraulic damper 7, and hydraulic damper 7 then can not produce the influence of power to baffle 5, and hydraulic damper 7 is automatic re-setting under the condition of not receiving the pressure, alright like this with avoid when opening the door the damping that hydraulic damper 7 produced influences the process of opening the door.

The hydraulic damper 7 comprises a housing 71, a piston rod 72, a piston 73 and a first damping spring 74, a piston cavity 701 is formed in the housing 71, the piston 73 is fixed on the piston rod 72, the piston 73 is located in the piston cavity 701, the piston rod 72 extends out of the piston cavity 701 and extends to the outside of the housing 71, the first damping spring 74 is located in the piston cavity 701 and presses between the piston 73 and the bottom of the housing 71, and hydraulic oil is filled in the piston cavity 701. Specifically, during the door closing process, the guide plate 5 moves downward to apply a downward pressure on the piston rod 72, the piston rod 72 drives the piston 73 to move downward and compress the first damping spring 74, the damping effect is achieved by the first damping spring 74 and hydraulic oil, and during the compression process of the first damping spring 74, the hydraulic oil at the lower part of the piston 73 flows upward along the inner wall of the housing 71 to the upper part of the piston 73. During the door opening process, since the piston rod 72 is not pressed down by the guide plate 5, the piston 73 is moved upward to be reset to the initial state by the spring return force of the first damping spring 74. Preferably, a slidable partition plate 75 is disposed in the housing 71, the partition plate 75 divides the housing 71 into an adjustment cavity 702 and the piston cavity 701, the partition plate 75 is provided with a first through hole (not shown), an upper end cover of the housing 71 is provided with a second through hole (not shown), the piston rod 72 sequentially penetrates through the first through hole and the second through hole and extends to the outside of the housing 71, the partition plate 75 is further provided with a sealing ring 751, and the sealing ring 751 is located in the piston cavity 701 and is sleeved on the piston rod 72; a second damping spring 76 is provided in the adjustment chamber 702, and the second damping spring 76 is pressed between the partition plate 75 and the upper end cover of the housing 71. Specifically, the sealing ring 751 is used for realizing the sealing process between the piston cavity 701 and the adjustment cavity 702, and the pressure generated by the second damping spring 76 on the partition plate 75 can be adjusted by adjusting the number of turns of the second damping spring 76, and finally the position of the partition plate 75 in the housing 71 is determined, so that the length of the piston rod 72 extending out of the housing 71 can be adjusted to adjust the damping intervention angle of the hydraulic damper 7, specifically, the larger the number of turns of the second damping spring 76 is, the larger the damping intervention angle is, and the smaller the damping intervention angle is.

Further, the outer circumferential ring of the piston 73 is further provided with a sealing ring 731, and the sealing ring 731 may increase the resistance to the flow of the hydraulic oil. In order to facilitate the installation of the hydraulic damper 7, the second hinge part 2 is further provided with an installation seat 9, the housing 71 is arranged on the installation seat 9, the installation seat 9 is further provided with a slidable slide block 8, the slide block 8 is located between the free end of the piston rod 72 and the lower end of the guide plate 5, specifically, the guide plate 5 moves downwards to push the slide block 8 to slide on the installation seat 9, and the slide block 8 can push the piston rod 72 to move. Preferably, the upper portion of the sliding block 8 is provided with an insertion slot 81, the lower end portion of the guide plate 5 is inserted into the insertion slot 81, the lower portion of the sliding block 8 is formed with a housing structure 82, the housing structure 82 covers the outside of the hydraulic damper 7, and the mounting seat 9 is provided with a plurality of hydraulic dampers 7, and the plurality of hydraulic dampers 7 are all located in the housing structure 82 to achieve synchronous movement.

Further, the link assembly 3 includes a first link 31 and a second link 32, an upper end of the first link 31 is hinged to the first hinge portion 1 through a first connecting shaft 102, a lower end of the first link 31 is hinged to a middle of the second link 32 through a second connecting shaft 103, an upper end of the second link 32 is hinged to the second hinge portion 2 through a third connecting shaft 104, and a lower end of the second link 32 is hinged to the guide plate 5 through a fourth connecting shaft (not marked). Specifically, during the actual use of the two connecting rods in the connecting rod assembly 3, the rotating motion mode of the first hinge part 1 can be converted to drive the guide plate 5 to reciprocate. The middle part of the first link 31 is further provided with a notch structure 311 for avoiding the third connecting shaft 104.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A damping hinge comprises a first hinge part and a second hinge part which are hinged together through a hinge rotating shaft, and is characterized by further comprising a buffering damping assembly, wherein the buffering damping assembly comprises a connecting rod assembly, a buffering spring, a guide plate, a cross beam and a hydraulic damper; the connecting rod assembly is used for converting the rotating motion of the first hinge part into driving the guide plate to reciprocate, the cross beam is arranged on the second connecting part, the buffer spring is sleeved on the guide plate and pressed between the upper end part of the guide plate and the cross beam, and the lower end part of the guide plate is used for driving the hydraulic damper to act.

2. The damped hinge according to claim 1, wherein the hydraulic damper includes a housing, a piston rod, a piston, and a first damping spring, a piston cavity is formed in the housing, the piston is fixed to the piston rod, the piston is located in the piston cavity, the piston rod extends out of the piston cavity and extends to the outside of the housing, the first damping spring is located in the piston cavity and is pressed between the piston and the housing, and the piston cavity is filled with hydraulic oil.

3. The damped hinge according to claim 2, wherein a slidable partition plate is disposed in the housing, the partition plate divides the housing into an adjustment cavity and the piston cavity, the partition plate is provided with a first through hole, the upper end cap of the housing is provided with a second through hole, the piston rod sequentially penetrates through the first through hole and the second through hole and extends to the outside of the housing, and a sealing ring is fixedly disposed on the partition plate, the sealing ring is disposed in the piston cavity and is sleeved on the piston rod; and a second damping spring is arranged in the adjusting cavity and pressed between the partition plate and the upper end cover of the shell.

4. The damped hinge according to claim 2 wherein the outer peripheral ring of the piston is further provided with a sealing ring.

5. The damped hinge according to claim 2, wherein said second hinge portion is further provided with a mounting seat on which said housing is disposed, said mounting seat further being provided with a slidable slider between a free end of said piston rod and a lower end of said guide plate.

6. The damped hinge according to claim 5, wherein an upper portion of said slider is provided with an insertion groove in which a lower end portion of said guide plate is inserted, and a lower portion of said slider is formed with a cover structure which covers an outside of said hydraulic damper.

7. The damped hinge according to claim 6 wherein a plurality of said hydraulic dampers are disposed on said mount.

8. The damped hinge according to claim 1, wherein the link assembly comprises a first link and a second link, an upper end of the first link is hinged to the first hinge portion by a first connecting shaft, a lower end of the first link is hinged to a middle portion of the second link by a second connecting shaft, an upper end of the second link is hinged to the second hinge portion by a third connecting shaft, and a lower end of the second link is hinged to the guide plate by a fourth connecting shaft.

9. The damped hinge according to claim 8, wherein the middle portion of the first link is further provided with a notch structure for avoiding the third link shaft.

10. A horizontal refrigerator comprises a refrigerator body and a door body, and is characterized by further comprising a damping hinge according to any one of claims 1 to 9, wherein a first hinge part of the damping hinge is connected to the door body, and a second hinge part of the damping hinge is connected to the refrigerator body.