CN109594876B - Hinge for refrigerator door - Google Patents
Hinge for refrigerator door Download PDFInfo
- Publication number
- CN109594876B CN109594876B CN201811569706.4A CN201811569706A CN109594876B CN 109594876 B CN109594876 B CN 109594876B CN 201811569706 A CN201811569706 A CN 201811569706A CN 109594876 B CN109594876 B CN 109594876B
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- Prior art keywords
- cam
- refrigerator door
- hinge
- refrigerator
- base
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- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000009471 action Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
- E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention relates to the technical field of hinges, and discloses a hinge for a refrigerator door, which comprises a base for connecting a refrigerator cabinet body and a connecting rod for connecting the refrigerator door, wherein a cam disc is rotationally connected to the base through a center pin shaft, one end of the connecting rod is provided with a connecting hole for connecting the refrigerator door, the other end of the connecting rod is connected with the cam disc through a first hinge shaft, the base is also provided with a cam jacking mechanism for controlling the rotation speed of the cam disc, and the cam jacking mechanism comprises a cam jacking head pressed on a cam surface of the cam disc. The invention improves the user experience when the refrigerator door is opened and closed, and prolongs the service life of the product.
Description
Technical Field
The invention relates to the technical field of hinges, in particular to a hinge for a refrigerator door.
Background
Refrigerators are a kind of refrigerating apparatus that maintains a constant low temperature, and also a kind of civil products that maintain foods or other objects in a constant low temperature cold state. The refrigerator structurally comprises a refrigerator body and a refrigerator door, wherein the refrigerator door is rotatably connected with the refrigerator body through a pin shaft in rotary fit with the refrigerator body.
The rotation connection structure of the refrigerator door and the refrigerator cabinet in the prior art has the following problems:
firstly, in the opening process of the refrigerator door, a user rotates the refrigerator door to a desired angle and then releases hands, and the refrigerator door always continues to rotate under the action of inertia, so that the refrigerator door is fully opened, more cold air is lost, and the energy-saving effect of the refrigerator is affected; moreover, the refrigerator door is easy to collide with the refrigerator body when being fully opened due to inertia, and rebounds after collision, so that the user experience is influenced on one hand, and the collision part and the pin shaft joint of the refrigerator door are easy to damage on the other hand, so that the service life of the product is reduced.
Secondly, the refrigerator door can continue to rotate after being released by the action of inertia in the closing process, so that the refrigerator door and the refrigerator cabinet body are impacted, the sound is large, the service life of a sealing magnetic strip between the refrigerator door and the refrigerator cabinet body is reduced, and the quietness of the environment is also influenced by large door closing sound.
Disclosure of Invention
In order to solve the above problems, the present invention provides a hinge for a refrigerator door, which aims to improve the user experience when the refrigerator door is opened and closed, and to improve the service life of the product. The specific technical scheme is as follows:
the hinge for the refrigerator door comprises a base for connecting a refrigerator cabinet body and a connecting rod for connecting the refrigerator door, wherein a cam disc is rotationally connected to the base through a central pin shaft, one end of the connecting rod is provided with a connecting hole for being connected with the refrigerator door, the other end of the connecting rod is connected with the cam disc through a first hinge shaft, a cam jacking mechanism for controlling the rotation speed of the cam disc is further arranged on the base, and the cam jacking mechanism comprises a cam jacking head which is pressed on a cam surface of the cam disc.
When in use, the base is arranged on the top surface of the refrigerator body, and one end of the connecting rod is connected with the refrigerator door through the connecting hole. When the refrigerator door rotates, the connecting rod is driven to act, and then the cam disc is driven to rotate by the connecting rod, so that the refrigerator door is opened and closed. Because the cam surface of the cam disc is pressed by the cam top pressing head, certain rotation resistance exists when the cam disc rotates, the rotation resistance can overcome the inertial rotation of the refrigerator door after the refrigerator door is opened, when a user of the refrigerator opens the refrigerator door by a certain angle and then releases hands, the refrigerator door can stop at a desired position, so that the hovering of the refrigerator door at any position is realized, the defects that the existing refrigerator door is easy to rotate by inertia after being opened and is collided and rebounded with a refrigerator cabinet body are overcome, and the user experience is improved.
As a further improvement of the invention, the cam surface of the cam disc comprises two sections of cam surfaces which are mutually adjacent, wherein the two sections of cam surfaces are respectively an automatic stop section cam surface for controlling the refrigerator door to automatically stop when the refrigerator door rotates to be larger than a set critical angle and an automatic closing section cam surface for controlling the refrigerator door to automatically close when the refrigerator door rotates to be smaller than or equal to the set critical angle.
The refrigerator door is characterized in that the cam top pressure head of the refrigerator door contacts with the self-stopping section cam surface when the refrigerator door rotates to be larger than a set critical angle, and the cam top pressure head contacts with the self-closing section cam surface when the refrigerator door rotates to be smaller than or equal to the set critical angle.
The cam surface of the cam disc is designed into the self-stopping section cam surface and the self-closing section cam surface, and the self-stopping of the refrigerator door at a larger opening angle and the self-closing of the refrigerator door at a smaller opening angle are respectively controlled and realized through cam surfaces of different shapes, so that the incomplete closing of the refrigerator door caused by misoperation of a user can be avoided, and the user experience is further improved.
The critical angle of the refrigerator door can be set appropriately according to different use occasions of the refrigerator. Preferably, the critical angle set by the refrigerator door is 5-50 degrees.
The specific structures of the self-stopping section cam surface and the self-closing section cam surface in the invention are as follows: the automatic stop section cam surface is an arc surface, the arc center of the arc surface is coaxial with the rotation center of the cam disc, and the normal line of any point on the automatic stop section cam surface deviates from the rotation center of the cam disc to form a cam disc rotation moment for closing the refrigerator door.
On the cam surface of the automatic stop section, the arc center of the arc surface is coaxial with the rotation center of the cam disc, so that the acting force applied to the cam surface by the cam jacking head passes through the rotation center of the cam disc in the direction, no additional rotation moment is generated on the cam disc, and the refrigerator door can realize automatic stop under the action of friction force between the cam jacking head and the cam surface.
On the cam surface of the self-closing section, the normal line of any point on the cam surface of the self-closing section deviates from the rotation center of the cam disc, so that the acting force applied to the cam surface by the cam top pressing head can generate rotation moment on the cam disc, and the refrigerator door can be automatically closed under the action of the rotation moment.
The cam jacking mechanism has the specific structure that: the cam jacking mechanism further comprises an L-shaped lever, the middle of the L-shaped lever is connected with the base through a second hinge shaft, one end of the L-shaped lever is connected to the base through a spring, and the other end of the L-shaped lever is provided with the cam jacking head.
Preferably, the cam jacking head comprises a cylindrical shaft and a roller sleeved on the cylindrical shaft, and the roller is in contact with the cam surface.
In the invention, the refrigerator door is provided with the connecting support used for respectively connecting the connecting rod and the refrigerator cabinet body, the connecting support is connected with the refrigerator cabinet body through the third hinge, and the connecting support is connected with the connecting rod through the connecting hole and the screw.
In the invention, a spring connecting pin is arranged on the base, and one end of the spring is connected with the spring connecting pin.
In the invention, the base, the cam plate and the L-shaped lever are all provided with a double-wall plate structure, and the double-wall plate comprises a pair of parallel plates which are arranged at intervals.
The base, the cam disc and the L-shaped lever adopt the design of double-wall plate structures, so that the refrigerator door hinge has better symmetry on the whole structure, and meanwhile, the whole strength of the refrigerator door hinge is improved.
The beneficial effects of the invention are as follows:
firstly, the hinge for the refrigerator door is provided with the cam pushing head which is pressed on the cam surface of the cam disc, and because the cam surface of the cam disc is pressed by the cam pushing head, certain rotation resistance exists when the cam disc rotates, the rotation resistance can overcome the inertial rotation of the refrigerator door after the refrigerator door is opened, when a user of the refrigerator opens the refrigerator door by a certain angle and then releases hands, the refrigerator door can be stopped at a desired position, so that the hovering of the refrigerator door at any position is realized, the defects that the existing refrigerator door is easy to rotate by inertia after being opened, and collision and rebound with a refrigerator cabinet body are caused are overcome, and the user experience is improved.
Secondly, the cam surface of the cam disc is designed to be the self-stopping section cam surface and the self-closing section cam surface, and the self-stopping of the refrigerator door at a larger opening angle and the self-closing of the refrigerator door at a smaller opening angle are respectively controlled and realized through cam surfaces of different shapes, so that the incomplete closing of the refrigerator door caused by misoperation of a user can be avoided, and the user experience is further improved.
Thirdly, the hinge for the refrigerator door is characterized in that the cam disc is provided with the self-closing section cam surface, and the normal line of any point on the self-closing section cam surface deviates from the rotation center of the cam disc, so that the acting force applied to the cam surface by the cam jacking head generates a rotation moment on the cam disc, and the refrigerator door can be automatically closed under the action of the rotation moment.
Fourth, according to the hinge for a refrigerator door of the present invention, the cam plate is provided with the self-stopping cam surface, and since the arc center of the arc surface is coaxial with the rotation center of the cam plate, the direction of the acting force applied to the cam surface by the cam top pressure head passes through the rotation center of the cam plate, so that no additional rotation moment is generated to the cam plate, and the refrigerator door can be self-stopped under the action of the friction force between the cam top pressure head and the cam surface.
Fifth, the hinge for the refrigerator door, provided by the invention, has the advantages that the base, the cam disc and the L-shaped lever adopt the design of double-wall plate structures, so that the refrigerator door hinge has better symmetry on the whole structure, and meanwhile, the whole strength of the refrigerator door hinge is improved.
Drawings
Fig. 1 is a schematic structural view of a hinge for a refrigerator door (refrigerator door closed) according to the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the base hidden;
FIG. 3 is a schematic view of the cam plate hidden from view in FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 1 with the base and refrigerator door removed;
FIG. 5 is a schematic view of the cam jack mechanism hidden from view in FIG. 4;
fig. 6 is a schematic structural view of a hinge for a refrigerator door (refrigerator door fully opened and with a base hidden) according to the present invention;
fig. 7 is a schematic view of the three-dimensional structure of fig. 1 (with the refrigerator door removed);
fig. 8 is a schematic diagram of the explosive structure of fig. 1.
In the figure: 1. the refrigerator comprises a base, 2, a central pin shaft, 3, a connecting rod, 4, a cam disc, 5, a connecting hole, 6, a first hinge shaft, 7, a cam jacking mechanism, 8, a cam jacking head, 9, a self-stopping section cam surface, 10, a self-closing section cam surface, 11, a rotation center of the cam disc, 12, an L-shaped lever, 13, a second hinge shaft, 14, a spring, 17, a connecting support, 18, a third hinge shaft, 19, a screw, 20, a spring connecting pin, 22, a refrigerator door, 23 and a refrigerator cabinet.
In the figure: a is the normal line of any point on the self-closing section cam surface.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
An embodiment of a hinge for a refrigerator door according to the present invention is shown in fig. 1 to 8, and comprises a base 1 for connecting a refrigerator cabinet 23, and a link 3 for connecting a refrigerator door 22, wherein a cam plate 4 is rotatably connected to the base 1 through a center pin 2, one end of the link 3 is provided with a connecting hole 5 for connecting the refrigerator door 22, the other end of the link 3 is connected to the cam plate 4 through a first hinge shaft 6, a cam pressing mechanism 7 for controlling the rotation speed of the cam plate 4 is further provided on the base 1, and the cam pressing mechanism 7 comprises a cam pressing head 8 for pressing a cam surface of the cam plate 4.
In use, the base 1 is mounted on the top surface of the refrigerator cabinet 23, and one end of the connecting rod 3 is connected with the refrigerator door 22 through the connecting hole 5. When the refrigerator door 22 rotates, the connecting rod 3 is driven to act, and then the cam plate 4 is driven to rotate by the movement of the connecting rod 3, so that the refrigerator door 22 is opened and closed. Because the cam surface of the cam disc 4 is pressed by the cam top pressing head 8, a certain rotation resistance exists when the cam disc 4 rotates, the rotation resistance can overcome the inertia rotation of the refrigerator door 22 after opening, when a user of the refrigerator opens the refrigerator door 22 by a certain angle and then releases hands, the refrigerator door 22 can stop at a desired position, so that the hovering of the refrigerator door 22 at any position is realized, the defects that the existing refrigerator door 22 is easy to rotate by inertia after opening and causes collision and rebound with the refrigerator cabinet 23 are overcome, and the user experience is improved.
As a further improvement of the present embodiment, the cam surface of the cam plate 4 includes two sections of cam surfaces adjacent to each other, the two sections of cam surfaces being a self-stop section cam surface 9 for controlling the refrigerator door 22 to automatically stop when the refrigerator door 22 rotates to a critical angle greater than a predetermined critical angle, and a self-closing section cam surface 10 for controlling the refrigerator door 22 to automatically close when the refrigerator door 22 rotates to a critical angle less than or equal to the predetermined critical angle.
Wherein the cam top pressing head 8 of the refrigerator door 22 contacts with the self-stopping section cam surface 9 when the refrigerator door 22 rotates to be larger than a set critical angle, and the cam top pressing head 8 contacts with the self-closing section cam surface 10 when the refrigerator door 22 rotates to be smaller than or equal to the set critical angle.
The cam surface of the cam disc 4 is designed into the self-stopping section cam surface 9 and the self-closing section cam surface 10, and the self-stopping of the refrigerator door at a larger opening angle and the self-closing of the refrigerator door at a smaller opening angle are respectively controlled and realized through cam surfaces of different shapes, so that the incomplete closing of the refrigerator door caused by misoperation of a user can be avoided, and the user experience is further improved.
The critical angle of the refrigerator door can be set appropriately according to different use occasions of the refrigerator. As a preferable aspect of this embodiment, the critical angle set by the refrigerator door 22 is 5 to 50 °.
The specific structures of the self-stop section cam surface 9 and the self-closing section cam surface 10 in the embodiment are as follows: the self-stop cam surface 9 is an arc surface, the arc center of the arc surface is coaxial with the rotation center 11 of the cam disc 4, and the normal line A of any point on the self-stop cam surface 10 is deviated from the rotation center 11 of the cam disc 4 to form a cam disc rotation moment for closing the refrigerator door 22.
In the automatic stop section cam surface 9, since the arc center of the arc surface is coaxial with the rotation center 11 of the cam plate, the direction of the acting force applied to the cam surface by the cam top pressure head 8 passes through the rotation center 11 of the cam plate, so that no additional rotation moment is generated on the cam plate 4, and the refrigerator door 22 can realize automatic stop under the action of friction force between the cam top pressure head 8 and the cam surface.
On the self-closing section cam surface 10, since the normal line a of any point on the self-closing section cam surface 10 is deviated from the rotation center 11 of the cam plate, the force applied to the cam surface by the cam pressing head 8 will generate a rotation moment to the cam plate 4, and the refrigerator door 22 can be automatically closed under the action of the rotation moment.
The specific structure of the cam jacking mechanism 7 in this embodiment is as follows: the cam jacking mechanism 7 further comprises an L-shaped lever 12, the middle of the L-shaped lever 12 is connected with the base 1 through a second hinge shaft 13, one end of the L-shaped lever 12 is connected to the base 1 through a spring 14, and the other end of the L-shaped lever 12 is provided with the cam jacking head 8.
Preferably, the cam jacking head 8 comprises a cylindrical shaft and a roller sleeved on the cylindrical shaft, and the roller is in contact with the cam surface.
In this embodiment, the refrigerator door 22 is provided with a connection support 17 for respectively connecting the connecting rod 3 and the refrigerator cabinet 23, the connection support 17 is connected with the refrigerator cabinet 23 through a third hinge 18, and the connection support 17 is connected with the connecting rod 3 through the connection hole 5 and the screw 19.
In this embodiment, the base 1 is provided with a spring connection pin 20, and one end of the spring 14 is connected to the spring connection pin 20.
In this embodiment, the base 1, the cam plate 4 and the L-shaped lever 12 each have a double-wall structure including a pair of parallel plates disposed at intervals.
The base 1, the cam disc 4 and the L-shaped lever 12 adopt the design of double-wall plate structures, so that the refrigerator door hinge has better symmetry on the whole structure, and meanwhile, the whole strength of the refrigerator door hinge is improved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The hinge for the refrigerator door is characterized by comprising a base for connecting a refrigerator cabinet body and a connecting rod for connecting the refrigerator door, wherein a cam plate is rotationally connected to the base through a center pin shaft, one end of the connecting rod is provided with a connecting hole for connecting the refrigerator door, the other end of the connecting rod is connected with the cam plate through a first hinge shaft, the base is also provided with a cam jacking mechanism for controlling the rotation speed of the cam plate, and the cam jacking mechanism comprises a cam jacking head pressed on a cam surface of the cam plate; the cam surface of the cam disc comprises two sections of cam surfaces which are mutually adjacent, wherein the two sections of cam surfaces are respectively an automatic stop section cam surface for controlling the refrigerator door to automatically stop when the refrigerator door rotates to be larger than a set critical angle and an automatic closing section cam surface for controlling the refrigerator door to automatically close when the refrigerator door rotates to be smaller than or equal to the set critical angle; the critical angle set by the refrigerator door is 5-50 degrees; the automatic stop section cam surface is an arc surface, the arc center of the arc surface is coaxial with the rotation center of the cam disc, and the normal line of any point on the automatic stop section cam surface deviates from the rotation center of the cam disc to form a cam disc rotation moment for closing the refrigerator door.
2. The hinge for a refrigerator door according to claim 1, wherein the cam pressing mechanism further comprises an L-shaped lever, a middle of the L-shaped lever is connected to the base by a second hinge shaft, one end of the L-shaped lever is connected to the base by a spring, and the other end of the L-shaped lever is provided with the cam pressing head.
3. The hinge for a refrigerator door according to claim 2, wherein the cam top pressing head includes a cylindrical shaft and a roller sleeved on the cylindrical shaft, and the roller is in contact with the cam surface.
4. The hinge for a refrigerator door according to claim 1, wherein a connection support for respectively connecting the link rod and the refrigerator body is provided on the refrigerator door, the connection support is connected with the refrigerator body through a third hinge shaft, and the connection support is connected with the link rod through the connection hole and the screw.
5. The hinge for a refrigerator door according to claim 2, wherein the base is provided with a spring coupling pin, and one end of the spring is coupled to the spring coupling pin.
6. The hinge for a refrigerator door according to claim 2, wherein the base, the cam plate, and the L-shaped lever each have a double-wall structure including a pair of parallel plates disposed at a spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569706.4A CN109594876B (en) | 2018-12-21 | 2018-12-21 | Hinge for refrigerator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569706.4A CN109594876B (en) | 2018-12-21 | 2018-12-21 | Hinge for refrigerator door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109594876A CN109594876A (en) | 2019-04-09 |
| CN109594876B true CN109594876B (en) | 2024-01-30 |
Family
ID=65963209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811569706.4A Active CN109594876B (en) | 2018-12-21 | 2018-12-21 | Hinge for refrigerator door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109594876B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823801B (en) * | 2022-11-16 | 2024-04-16 | 东风延锋盐城汽车座舱系统有限公司 | Vehicle-mounted refrigerator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991003616A1 (en) * | 1989-09-05 | 1991-03-21 | Oy Electrolux Ab | A hinge for french doors in a refrigerator |
| EP0595045A1 (en) * | 1992-10-28 | 1994-05-04 | Arturo Salice S.p.A. | Hinge, especially furniture hinge |
| CN202547228U (en) * | 2012-02-29 | 2012-11-21 | 上海宏梭信息科技有限公司 | Mini multipurpose refrigerator |
| WO2016012577A1 (en) * | 2014-07-25 | 2016-01-28 | BSH Hausgeräte GmbH | Domestic refrigerator having a closing cam which has a coupling projection with a recess |
| CN106468496A (en) * | 2015-08-14 | 2017-03-01 | 杨庭卫 | A kind of certainly closing buffers Silent refrigerator door hinge |
| CN206220725U (en) * | 2016-11-21 | 2017-06-06 | 清远市星徽精密制造有限公司 | A kind of automatic retracting refrigerator hinge |
| CN209924708U (en) * | 2018-12-21 | 2020-01-10 | 江苏星徽精密科技有限公司 | Hinge for refrigerator door |
-
2018
- 2018-12-21 CN CN201811569706.4A patent/CN109594876B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991003616A1 (en) * | 1989-09-05 | 1991-03-21 | Oy Electrolux Ab | A hinge for french doors in a refrigerator |
| EP0595045A1 (en) * | 1992-10-28 | 1994-05-04 | Arturo Salice S.p.A. | Hinge, especially furniture hinge |
| CN202547228U (en) * | 2012-02-29 | 2012-11-21 | 上海宏梭信息科技有限公司 | Mini multipurpose refrigerator |
| WO2016012577A1 (en) * | 2014-07-25 | 2016-01-28 | BSH Hausgeräte GmbH | Domestic refrigerator having a closing cam which has a coupling projection with a recess |
| EP3172392A1 (en) * | 2014-07-25 | 2017-05-31 | BSH Hausgeräte GmbH | Domestic refrigerator having a closing cam which has a coupling projection with a recess |
| CN106468496A (en) * | 2015-08-14 | 2017-03-01 | 杨庭卫 | A kind of certainly closing buffers Silent refrigerator door hinge |
| CN206220725U (en) * | 2016-11-21 | 2017-06-06 | 清远市星徽精密制造有限公司 | A kind of automatic retracting refrigerator hinge |
| CN209924708U (en) * | 2018-12-21 | 2020-01-10 | 江苏星徽精密科技有限公司 | Hinge for refrigerator door |
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| Publication number | Publication date |
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| CN109594876A (en) | 2019-04-09 |
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Address after: 225300 north side of Yongfeng Road, high tech Industrial Park, Gaogang District, Taizhou City, Jiangsu Province Applicant after: Jiangsu Jiuxing Precision Technology Group Co.,Ltd. Address before: 225300 north side of Yongfeng Road, high tech Industrial Park, Gaogang District, Taizhou City, Jiangsu Province Applicant before: JIANGSU SACA PRECISION TECHNOLOGY Co.,Ltd. |
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