CN113494224B - Ejection device and refrigerator - Google Patents
Ejection device and refrigerator Download PDFInfo
- Publication number
- CN113494224B CN113494224B CN202010202458.0A CN202010202458A CN113494224B CN 113494224 B CN113494224 B CN 113494224B CN 202010202458 A CN202010202458 A CN 202010202458A CN 113494224 B CN113494224 B CN 113494224B
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- gear
- rack
- assembly
- ejection
- shell
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- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 150000001875 compounds Chemical class 0.000 claims description 47
- 230000009467 reduction Effects 0.000 claims description 29
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/712—Toothed gearing with incomplete toothing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/716—Pinions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/726—Ring gears; Internal gears
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
Landscapes
- Transmission Devices (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention relates to the technical field of refrigerators and discloses an ejection device and a refrigerator, wherein the ejection device comprises a shell, a power assembly, a transmission assembly and an ejection rod, a first rack and a second rack are fixedly connected with the ejection rod, the transmission assembly is in transmission connection with the power assembly, the transmission assembly comprises a composite gear assembly, a first rack and a second rack, the composite gear assembly comprises a first gear and a second gear which are coaxially arranged and fixedly connected, the diameter of a first indexing circle of the first gear is smaller than that of a second indexing circle of the second gear, the power assembly can drive the first gear to be meshed with the first rack so as to drive the ejection rod to extend out of the shell, and can also drive the second gear to be meshed with the second rack so as to drive the ejection rod to continuously extend out of the shell after the first gear and the first rack are disengaged. The ejection device solves the problem of different thrust and moving speeds required at each stage when the refrigerator door is ejected, improves the smoothness of door opening, and reduces the time required for door opening.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an ejection device and a refrigerator.
Background
In the prior art, the ejector rod of the ejector device arranged on the refrigerator for automatically opening the refrigerator door is generally kept at a certain distance from the refrigerator door, and most of the ejector device adopts fixed thrust and enables the refrigerator door to be opened at a fixed speed when the refrigerator door is actually opened.
In the prior art, in the initial stage of opening the refrigerator door, after the refrigerator door rotates a small angle relative to the refrigerator body, the refrigerator door breaks away from the suction force between the refrigerator door and the refrigerator body, and the refrigerator door continues to rotate, so that the refrigerator door still needs a certain thrust in the preset angle in the opening stage due to the resistance of the refrigerator door closing auxiliary device, and the thrust needed in the stage is smaller than that in the initial stage, but the stroke is longer.
Most of existing refrigerators capable of automatically opening refrigerator doors adopt a slower speed to open the refrigerator doors, impact on the refrigerator doors is reduced when an ejection device is abutted against the refrigerator doors, but the refrigerator doors of the refrigerator are slower in opening speed, and long time is required to open the refrigerator doors. If the opening speed of the refrigerator door is high, the push force is high, so that the ejection device collides with the refrigerator door to generate high sound.
Disclosure of Invention
Based on the foregoing, an object of the present invention is to provide an ejector device, which solves the problem of the prior art that the opening time of the refrigerator door is long or the ejector device and the refrigerator door generate large impact caused by opening the refrigerator door with a fixed thrust and speed.
Another object of the present invention is to provide a refrigerator capable of achieving rapid opening of a refrigerator door.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the ejection device comprises a shell, a power assembly, a transmission assembly and an ejection rod, wherein the transmission assembly is positioned in the shell and is in transmission connection with the power assembly, the ejection rod is slidably mounted on the shell, the transmission assembly comprises a compound gear set, a first rack and a second rack, the first rack and the second rack are fixedly connected with the ejection rod, the compound gear set comprises a first gear and a second gear which are coaxially arranged and fixedly connected, the first gear can be meshed with the first rack, the second gear can be meshed with the second rack, and the diameter of a first indexing circle of the first gear is smaller than that of a second indexing circle of the second gear; the power assembly can drive the first gear to be meshed with the first rack so as to drive the ejector rod to extend out of the shell, and can also drive the second gear to be meshed with the second rack after the first gear is disengaged from the first rack so as to drive the ejector rod to extend out of the shell continuously.
As an ejector device's preferred scheme, be equipped with first breach on the first gear, be equipped with the second breach on the second gear, ejector device still includes first elastic component, the one end of first elastic component with the casing links to each other, the other end with the ejector rod links to each other, first elastic component resets when the ejector rod, first rack can slide first breach and do not with first gear engagement, the second rack can slide second breach and do not with second gear engagement.
As an optimal scheme of ejecting device, ejecting device still includes circuit board, position switch and position bump, position switch install in on the circuit board, the circuit board install in on the casing, position switch with the power pack electricity is connected, the position bump is located on the compound gear train, the second gear with when the second rack is disengaged the position bump can touch position switch in order to close power pack.
As a preferred embodiment of the ejection device, the length of the first rack is smaller than the length of the second rack.
As a preferred embodiment of the ejection device, the first gear has a larger modulus than the second gear.
As a preferred scheme of the ejection device, the ejection device further comprises a reset assembly, wherein the reset assembly is arranged on the shell, and the reset assembly can push the first gear to rotate along the direction of driving the ejection rod to extend out of the shell.
As an ejector device's preferred scheme, reset assembly includes push rod and second elastic component, the one end of second elastic component with the casing is connected, the other end with the push rod is connected, the push rod can promote first gear along the drive the ejector rod is to stretching out the direction of casing rotates, the second elastic component can reset the push rod in order to make the push rod with first gear separation.
As an optimal scheme of the ejection device, the power assembly comprises a motor, a reduction gear set, a worm and a worm wheel assembly, wherein the worm is arranged at the output end of the motor, the worm wheel assembly can be meshed with the worm and the reduction gear set respectively, and the reduction gear set is in transmission connection with the compound gear set.
As an optimal scheme of the ejection device, the speed reducing gear set is a one-way speed reducing gear set, the one-way speed reducing gear set comprises an input stage gear and an output stage gear, the input stage gear can drive the output stage gear to rotate, and the output stage gear is meshed with the compound gear set.
As an ejector, the compound gear set further comprises a third gear, the third gear is in transmission connection with the power assembly, the third gear and the second gear are integrally formed, third meshing teeth of the third gear and second meshing teeth of the second gear are integrally formed into compound teeth, the compound teeth extend along the axis direction of the third gear, and the compound teeth are meshed with the output stage gear when the first gear is meshed with the first rack.
As a preferred scheme of the ejection device, the ejection device further comprises a clutch rod assembly, wherein the clutch rod assembly is arranged on the shell, and the clutch rod assembly can disconnect the transmission connection between the power assembly and the transmission assembly.
As a preferred scheme of the ejection device, the clutch lever assembly comprises a first clutch lever assembly, the first clutch lever assembly comprises a first clutch lever body and a fourth elastic piece, one end of the fourth elastic piece is connected with the shell, the other end of the fourth elastic piece is in butt joint with the first clutch lever body, the first clutch lever body can force the transmission connection of the input stage gear and the output stage gear to be disconnected, and the fourth elastic piece can reset the first clutch lever body so that the input stage gear and the output stage gear are in transmission connection.
As a preferred scheme of the ejection device, the ejection device further comprises a second clutch lever assembly, the second clutch lever assembly comprises a second clutch lever body and a fifth elastic piece, one end of the fifth elastic piece is connected with the shell, the other end of the fifth elastic piece is in butt joint with the second clutch lever body, the second clutch lever assembly can force the worm to be disconnected from the transmission connection of the worm wheel assembly, and the fifth elastic piece can reset the second clutch lever body to enable the worm to be in transmission connection with the worm wheel assembly.
The refrigerator comprises a refrigerator body, a refrigerator door and the ejection device in any scheme, wherein the refrigerator door is rotatably connected to the refrigerator body, the ejection device is arranged on the refrigerator body, and the ejection rod can be abutted to the refrigerator door.
The beneficial effects of the invention are as follows: when the power component rotates the compound gear set with the same output torque, the diameter of the first reference circle of the first gear is smaller, so that the first gear has larger thrust when being meshed with the first rack, and the angular speed of the first gear is the same as that of the second gear, so that the first gear drives the first rack to move at a smaller speed, the first gear can ensure that the refrigerator door has larger thrust when being just started to overcome the magnetic attraction between the magnetic door seal on the refrigerator door and the refrigerator metal box body, the ejector can also ensure that the ejector is abutted with the refrigerator door at a slower speed to reduce the impact on the refrigerator door, the magnetic attraction between the refrigerator door and the refrigerator body is gradually reduced along with the opening of the refrigerator door, and the second gear is meshed with the second rack at the moment because the diameter of the second reference circle of the second gear is larger, so that the thrust of the second gear to the ejector rod is reduced, and the second gear drives the second rack to move at a larger speed, so that the refrigerator door can be opened at a higher speed, and the time of opening of the refrigerator door is shortened, and the user can be satisfied.
The refrigerator disclosed by the invention can realize quick opening of the refrigerator door due to the ejection device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic view of an ejector according to a first embodiment of the present invention;
FIG. 2 is a schematic view of an ejector device according to an embodiment of the present invention when a first gear is engaged with a first rack after a part of a housing is removed;
FIG. 3 is a schematic view of a first gear, a second gear, a third gear, and a position bump according to a first embodiment of the present invention;
FIG. 4 is a schematic view of an ejector device according to an embodiment of the present invention when a portion of a housing and a first spring are removed and a second gear is engaged with a second rack;
FIG. 5 is a schematic view of an ejector device according to an embodiment of the present invention, with a portion of a housing and a first spring removed, when a second gear is to be disengaged from a second rack;
FIG. 6 is a schematic view of an ejector device according to an embodiment of the present invention with a housing removed;
FIG. 7 is a schematic representation of a compound gearset according to a first embodiment of the invention;
FIG. 8 is a split view of a compound gear set and a third spring provided in accordance with a first embodiment of the present invention;
FIG. 9 is a schematic view of an ejector device with a housing removed according to a second embodiment of the present invention;
FIG. 10 is a schematic view of an ejector device with a housing removed according to a third embodiment of the present invention;
FIG. 11 is a split view of a second clutch lever assembly, worm and worm gear assembly provided in accordance with a third embodiment of the present invention;
FIG. 12 is a schematic view of a lower housing, a second clutch lever body, a fifth elastic member and a mating member according to a third embodiment of the present invention;
fig. 13 is a schematic view of an upper housing provided in accordance with a third embodiment of the present invention.
In the figure:
1. a housing; 101. mounting the bulge; 102. a guide rail; 103. a guide protrusion;
2. A power assembly; 21. a motor; 22. a reduction gear set; 221. an input stage gear; 222. an output stage gear; 2221. wedge blocks; 223. a first rotary link; 2230. a limit groove; 224. a second rotary connection; 2240. wedge-shaped grooves; 2241. a second limiting block; 23. a third elastic member;
3. A transmission assembly; 31. a compound gear set; 311. a first gear; 3110. a first notch; 312. a second gear; 3120. a second notch; 313. a third gear; 32. a first rack; 33. a second rack;
4. An ejector rod; 5. a first elastic member; 61. a circuit board; 62. a position switch; 7. a position collision block;
8. A reset assembly; 81. a push rod; 82. a second elastic member;
91. a worm; 92. a worm gear assembly;
11. A first clutch lever assembly; 111. a first clutch lever body; 1111. a first hand push rod; 1112. a transition section; 1113. a separation section; 1114. a guide post; 112. a fourth elastic member;
121. A second clutch lever body; 1211. a second push rod; 1212. a limit column; 1213. a pushing member; 122. a fifth elastic member; 123. a mating member; 124. a slider; 1240. a chute; 1241. a limit protrusion; 125. and a sixth elastic member.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying 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 relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.
Example 1
The present embodiment provides an ejector device, as shown in fig. 1 to 6, the device includes a housing 1, a power component 2, a transmission component 3 and an ejector rod 4, the ejector rod 4 is slidably mounted on the housing 1, the transmission component 3 is located in the housing 1 and is in transmission connection with the power component 2, the transmission component 3 includes a compound gear set 31, a first rack 32 and a second rack 33, the first rack 32 and the first rack 33 are fixedly connected with the ejector rod 4, the compound gear set 31 includes a first gear 311 and a second gear 312 which are coaxially disposed and fixedly connected, the first gear 311 can be meshed with the first rack 32, the second gear 312 can be meshed with the first rack 33, the diameter of a first reference circle of the first gear 311 is smaller than the diameter of a second reference circle of the second gear 312, the power component 2 can drive the first gear 311 to be meshed with the first rack 32 so as to drive the ejector rod 4 to extend out of the housing 1, and can also drive the second gear 312 to be meshed with the first rack 33 after the first gear 311 and the first rack 32 are disengaged so as to drive the ejector rod 4 to extend out of the housing 1.
The ejector device provided in this embodiment can realize quick opening of the refrigerator door, specifically, when the power assembly 2 rotates the compound gear set 31 with the same output torque, the first gear 311 has larger thrust when engaged with the first rack 32 due to the smaller diameter of the first reference circle of the first gear 311, and the first gear 311 has smaller speed when driving the first rack 32 to move due to the same angular speed of the first gear 311 and the second gear 312, so that the ejector member can be capable of abutting against the refrigerator door with a slower speed to reduce the impact on the refrigerator door when the refrigerator door just starts to open, and the magnetic attraction between the refrigerator door and the refrigerator door gradually decreases due to the fact that the second gear 312 is still engaged with the second rack 33 due to the larger diameter of the second circle of the second gear 312 when the second gear 312 is still overcome due to the smaller diameter of the first gear 311 and the second rack 312, and the compound gear set 2 still starts to rotate with the same output torque when the compound gear set 31 is still driven to move with the same angular speed when the second gear set 312 is still driven to increase the same angular speed when the second gear set 312 is still used to enable the second rack 312 to be driven to move with the same angular speed when the second rack 33 is still to be capable of increasing the second gear set 312 and enabling the second gear set to be satisfactory to be driven to be capable of increasing.
In order to achieve automatic resetting of the ejector rod 4, as shown in fig. 3, a first notch 3110 is disposed on the first gear 311, the first notch 3110 is used for preventing the power assembly 2 from transmitting power to the ejector rod 4 via the first gear 311, a second notch 3120 is disposed on the second gear 312, the second notch 3120 is used for preventing the power assembly 2 from transmitting power to the ejector rod 4 via the second gear 312, the ejector device further includes a first elastic member 5, the first elastic member 5 is a spring, one end of the first elastic member 5 is connected to the housing 1, the other end is connected to the ejector rod 4, when the first elastic member 5 resets the ejector rod 4, the first rack 32 can slide through the first notch 3110 and is not meshed with the first gear 311, the second rack 33 can slide through the second notch 3120 and is not meshed with the second gear 312, that is, at this time, the existence of the first notch 3110 and the second notch 3120 can enable the first elastic member 5 to reset the ejector rod 4 rapidly.
In order to realize automatic closing of the power assembly 2, as shown in fig. 2 and 5, the ejection device of the present embodiment further includes a circuit board 61, a position switch 62 and a position bump 7, the position switch 62 is mounted on the circuit board 61, the circuit board 61 is disposed on the housing 1, the position switch 62 is electrically connected with the power assembly 2, the position bump 7 is disposed on the compound gear set 31, and the position bump 7 can touch the position switch 62 to close the power assembly 2 when the second gear 312 is disengaged from the second rack 33. Specifically, as the power assembly 2 drives the compound gear set 31 to rotate, the position switch 62 contacts the position bump 7, the second gear 312 is disengaged from the second rack 33, the power assembly 2 stops being electrified, at this time, under the inertia action of the power assembly 2, the power assembly 2 drives the compound gear set 31 to continue to rotate for an angle, and the compound gear set 31 stops rotating after rotating for an angle under the limitation of the self friction force of the power assembly 2.
Of course, in other embodiments of the present invention, instead of the position switch 62 and the position bump 7, a position sensor may be disposed on the composite gear set 31, and when the composite gear set 31 drives the position sensor to rotate to a preset position, the power assembly 2 stops being electrified, so as to realize the opening of the refrigerator door; in other embodiments, other position sensing elements or other switches may be disposed on the compound gear set 31, and when the compound gear set 31 drives the position sensing elements or switches to rotate to a preset position, the power assembly 2 stops being electrified, and the type of the position sensing elements or switches is specifically set according to actual needs.
Further, as shown in fig. 2, 4 and 5, the length of the first rack 32 is smaller than that of the second rack 33. According to the prior art, the attractive force between the magnetic door seal on the refrigerator door and the refrigerator metal box body gradually decreases along with the opening of the refrigerator door, namely, a larger thrust is required from the closing state of the refrigerator door to the opening to an angle, and after the refrigerator door rotates by a first angle, the attractive force between the magnetic door seal on the refrigerator door and the refrigerator metal box body is basically negligible, and the first angle is smaller, that is, the rotation angle of the refrigerator door is within the first angle, the ejector device needs to overcome the friction force between the refrigerator door and the rotating shaft and the magnetic force between the refrigerator body and the refrigerator door, and at this stage, the rotation angle of the refrigerator door is smaller, namely, the stroke of the ejector rod 4 of the ejector device is smaller. The refrigerator door is opened again, the ejector needs to overcome the friction force between the refrigerator door and the rotating shaft and the resistance of the door closing auxiliary device after the door is opened, but the resistance at the stage is reduced greatly compared with that at the previous stage, the refrigerator door needs to rotate by a second angle, and the second angle is much larger than the first angle, namely the stroke of the ejector rod 4 of the ejector is larger. Thereafter, the refrigerator door continues to open under the effect of inertia, without the ejector rod 4 pushing.
It is understood that the protruding length of the ejector rod 4 when the first gear 311 is engaged with the first rack gear 32 is smaller than the protruding length when the second gear 312 is engaged with the second rack gear 33, that is, the length of the first rack gear 32 is smaller than the length of the second rack gear 33. Specifically, when the engagement of the first gear 311 with the first rack gear 32 is released, the refrigerator door is rotated through a first angle, and thereafter the second gear 312 is engaged with the second rack gear 33 to continue to open the refrigerator door, at which time the refrigerator door is rotated through a second angle, which is much larger than the first angle.
The distance between the first rack 32 and the second rack 33 in the longitudinal direction of the first rack 32 in this embodiment is a predetermined distance, and the second gear 312 starts to mesh with the second rack 33 when the first gear 311 is disengaged from the first rack 32. Specifically, if the first gear 311 and the first rack 32 are not disengaged, the second gear 312 and the second rack 33 start to be engaged, at this time, the ejector device is blocked because the speed of the first gear 311 driving the first rack 32 to drive the ejector rod 4 to move outwards is different from the speed of the second gear 312 driving the second rack 33 to drive the ejector rod 4 to move outwards, and at this time, the ejector device cannot continuously push the refrigerator door to open the refrigerator door. If the first gear 311 is disengaged from the first rack 32 and the second gear 312 is not engaged with the second rack 33, the first elastic member 5 drives the ejector rod 4 to reset, and thus the refrigerator door may not be opened. In this embodiment, the refrigerator door is smoothly switched from the slow opening of the refrigerator door when the first gear 311 is engaged with the first rack 32 to the fast opening of the refrigerator door when the second gear 312 is engaged with the second rack 33, so that the opening time of the refrigerator door is shortened, and the user satisfaction is increased.
For the miniaturization design of the transmission assembly 3, the modulus of the first gear 311 is required to be larger than the modulus of the second gear 312, and at this time, the modulus of the first rack 32 is the same as the modulus of the first gear 311, and the modulus of the second rack 33 is the same as the modulus of the second gear 312, that is, the modulus of the first rack 32 is larger than the modulus of the second rack 33.
Specifically, as shown in fig. 2, the power assembly 2 of the present embodiment includes a motor 21 and a reduction gear set 22, the motor 21 is in driving connection with the reduction gear set 22, and the reduction gear set 22 is in driving connection with the compound gear set 31 to realize rotation of the compound gear set 31. As shown in fig. 3, the compound gear set 31 further includes a third gear 313, the third gear 313 being in driving connection with the reduction gear set 22. The first gear 313, the second gear 312 and the third gear 313 of the present embodiment are integrally formed, and the modulus of the third gear 313 is the same as the modulus of the second gear 312, the third engaging tooth of the third gear 313 and the second engaging tooth of the second gear 312 are integrally formed into a composite tooth, the composite tooth extends along the axial direction of the third gear 313, and the composite tooth is engaged with the output stage gear 222 when the first gear 311 is engaged with the first rack 32. Since the thrust force required when the first gear 311 is meshed with the first rack gear 32 is large, the torque transmitted between the reduction gear set 22 and the compound gear set 31 is large, that is, the thrust force of the reduction gear set 22 to the third gear 313 of the compound gear set 31 is large. In order to secure the mechanical strength of the compound gear set, the output stage gear 222 is meshed with compound teeth of the second gear 312 and the third gear 313 of the compound gear set 31 while the first gear 311 is meshed with the first rack 32.
Of course, in other embodiments of the present invention, the first gear 311, the second gear 312 and the third gear 313 are not limited to the integral forming arrangement of the present embodiment, but may be an integral forming arrangement of the second gear 312 and the third gear 313, the second gear 312 and the third gear 313 are provided with gear mounting holes, gear grooves are formed on the gear mounting holes, the first gear 311 is mounted in the gear mounting holes, and the teeth of the first gear 311 are located in the gear grooves and part of the first gear protrudes out of the second gear, when the motor 21 drives the reduction gear set 22 to rotate the third gear 313, the first gear 311 can rotate along with the third gear 313 at the same angular velocity as the third gear 313, and this mounting manner is simple and convenient, so that the motor 21 drives the reduction gear set 22 to rotate the compound gear set 31, and the first gear 311, the second gear 312 and the third gear 313 of the compound gear set 31 do not rotate at the same angular velocity.
Further, the reduction gear set 22 of the present embodiment is a unidirectional reduction gear set, as shown in fig. 5 and 6, the unidirectional reduction gear set includes an input stage gear 221 and an output stage gear 222, the input stage gear 221 can drive the output stage gear 222 to rotate, after the motor 21 is started, the motor 21 drives the input stage gear 221 to drive the output stage gear 222 to rotate, and then the output stage gear 222 drives the compound gear set 31 to drive the ejector rod 4 of the rotary ejector rod 4 to move along the direction extending out of the housing 1.
As shown in fig. 6, the ejector of the present embodiment further includes a worm gear structure including a worm 91 and a worm wheel assembly 92, wherein the worm 91 is mounted at the output end of the power member 21, and the worm wheel assembly 92 is simultaneously engaged with the worm 91 and the input stage gear 221, and the worm gear structure is capable of driving the input stage gear 221 to rotate in the counterclockwise direction as viewed in fig. 7.
As shown in fig. 7 and 8, the reduction gear set 22 further includes a first rotating connection member 223 and a second rotating connection member 224, a wedge-shaped block 2211 is provided on the input stage gear 221, and a wedge-shaped groove 2240 provided corresponding to the wedge-shaped block 2211 is provided on the second rotating connection member 224, so that the second rotating connection member 223 can only transmit power in one rotating direction but cannot rotate power in the opposite direction. The output stage gear 222 and the first rotating connecting piece 223 are integrally formed, and the second rotating connecting piece 224 is sleeved on the first rotating connecting piece 223. Specifically, the first rotating connection member 223 has a limiting groove 2230 extending along its axis, and the second rotating connection member 224 has a second limiting block 2241 cooperating with the limiting groove 2230, so that when the input stage gear 221 rotates counterclockwise in the arrow direction as shown in fig. 7, the first rotating connection member 223, the second rotating connection member 224 and the output stage gear 222 can rotate.
As shown in fig. 8, the power assembly 2 further includes a third elastic member 23, where the third elastic member 23 is a spring and is located between the output stage gear 222 and the second rotating connecting member 224, and one end of the third elastic member 23 abuts against the second rotating connecting member 224, and the other end abuts against the output stage gear 222 so that the second rotating connecting member 224 abuts against the input stage gear 221.
If the output stage gear 222 is pushed to rotate in the counterclockwise direction as indicated by the arrow in fig. 7 by using an external force, the output stage gear 222 drives the first rotating connector 223 and the second rotating connector 224 to rotate in the counterclockwise direction and slide relative to the input stage gear 221, and the input stage gear 221 cannot rotate along with the rotation of the output stage gear 222 in the counterclockwise direction due to the wedge-shaped block 2211 on the input stage gear 221. If the external force is used to push the output stage gear 222 to rotate in the opposite direction of the counterclockwise direction of the arrow direction shown in fig. 7, the output stage gear 222 drives the first rotating connecting piece 223, the second rotating connecting piece 224 and the input stage gear 221 to rotate in the clockwise direction, but the worm and gear structure is in the locked state at this time, so that the output stage gear 222 cannot rotate in the clockwise direction.
As shown in fig. 5, the ejector device further includes a reset assembly 8, where the reset assembly 8 is disposed on the housing 1, and the reset assembly 8 can push the first gear 311 to rotate along the direction of driving the ejector rod 4 to extend out of the housing 1. Specifically, the reset assembly 8 of the present embodiment can drive the first gear 311 to rotate, and further, the second gear 312 continues to rotate, so that the second gear 312 is disengaged from the second rack 33.
As shown in fig. 5, the reset assembly 8 of the present embodiment includes a push rod 81 and a second elastic member 82, the second elastic member 82 is a spring, one end of the second elastic member 82 is connected with the housing 1, the other end is connected with the push rod 81, the push rod 81 compresses the second elastic member 82 to move in a direction extending into the housing 1, and further drives the first gear 311 to rotate, the second gear 312 is disengaged from the second rack 33, the push rod 81 is released, the second elastic member 82 resets the push rod 81, and the first elastic member 5 resets the ejector rod 4.
Specifically, when a special situation such as a sudden power failure occurs, the ejector rod 4 stops at the middle position and cannot be reset, so as to affect the closing of the refrigerator door, at this time, because the unidirectional reduction gear set 22 is of a unidirectional transmission structure, although the motor 21 and the input stage gear 221 cannot rotate in the opposite direction as shown in fig. 7, the output stage gear 222 can rotate in the opposite direction as shown in fig. 7, therefore, the ejector rod 4 is pulled, the ejector rod 4 protrudes in the ejection direction thereof, the rack on the ejector rod 4 drives the output gear 222 of the unidirectional reduction gear set 22 to rotate through the compound gear set 31, the second gear 312 is meshed with the last tooth of the second gear set 33 when the ejector rod 4 is pulled out to the maximum ejection position, at this time, the push rod 81 is pushed, the second elastic member 82 is compressed to move in the direction extending into the casing 1, and then the first gear 311 is driven to rotate, at this time, the first elastic member 5 resets the ejector rod 4, the second gear set 3120 can slide through the second notch 3120 and does not mesh with the second gear 312, the first gear 32 can slide through the first notch 3110 and does not mesh with the first gear 311, the second elastic member 81 is reset, and the second elastic member 81 is reset. At this time, the refrigerator door can be manually closed, so that the phenomenon that the refrigerator door cannot be closed due to power failure is avoided.
Preferably, the ejector device of the present embodiment further includes a controller (not shown in the figure), and the controller is electrically connected to the motor 21 and the position switch 62, where the controller may be a centralized or distributed controller, for example, the controller may be a single chip microcomputer or may be a distributed multiple chip microcomputer, and a control program may be run in the single chip microcomputer, so as to further control the motor 21 and the position switch 62 to implement the functions thereof.
The specific process of opening the refrigerator door by the ejector device in this embodiment is as follows:
In the first stage, the ejector rod 4 is located at the initial position, the motor 21 is electrified to start rotating, the motor 21 drives the output stage gear 222 of the reduction gear set 22 to be meshed with the third gear 313, the third gear 313 drives the first gear 311 and the second gear 312 to rotate, the first gear 311 starts to be meshed with the first rack 32, as shown in fig. 2, along with the rotation of the first gear 311, the first gear 311 drives the first rack 32 and the ejector rod 4 to move at a slower speed, and at the moment, the thrust of the ejector rod 4 to the refrigerator door is larger;
In the second stage, as shown in fig. 4, when the engagement between the first gear 311 and the first rack 32 is released, the second gear 312 starts to engage with the first rack 33, the second gear 312 drives the second rack 33 and the ejector rod 4 to move at a faster speed, at this time, the pushing force of the ejector rod 4 to the refrigerator door is smaller, as shown in fig. 5, until the length of the ejector rod 4 extending out of the casing 1 reaches the maximum when the engagement between the second gear 312 and the second rack 33 is about to be released, and meanwhile, the position switch 62 touches the position bump 7, so that the motor 21 is powered off, and under the inertia effect of the motor 21, the motor 21 drives the compound gear set 31 to continue to rotate for an angle and then stops rotating;
in the third stage, the first elastic piece 5 pulls the ejector rod 4 to reset to the initial position rapidly, and the refrigerator door is opened continuously under the action of inertia.
According to the embodiment, under the condition that the motor 21 and the reduction gear set 22 provide the same torque according to different working stroke sections of the ejector rod 4, the different problems of the thrust force and the moving speed required by each stage and the length of the ejector rod 4 extending out of the shell 1 in each stage when the ejector device ejects the refrigerator door are solved by utilizing the difference of the diameters of the reference circles of the first gear 311 and the second gear 312, the smoothness of the door opening process is improved, the time required for opening the door is reduced, and the user experience is improved.
The embodiment also provides a refrigerator, which comprises a refrigerator body (not shown in the figure), a refrigerator door (not shown in the figure) and the ejection device in the embodiment, wherein the refrigerator door is rotatably connected to the refrigerator body, the ejection device is arranged on the refrigerator body, and the ejection rod 4 can be abutted with the refrigerator door.
The refrigerator provided by the embodiment can realize the quick opening of the refrigerator door due to the ejection device.
Example two
The difference between the present embodiment and the first embodiment is that the ejector device of the present embodiment does not include the reset assembly 8, but includes the first clutch lever assembly 11, the first clutch lever assembly 11 is disposed on the housing 1, and the first clutch lever assembly 11 can disconnect the transmission connection between the power assembly 2 and the transmission assembly 3. When a special condition such as a sudden power failure occurs, the ejector rod 4 stops at the intermediate position and cannot be reset, so that the closing of the refrigerator door is affected, the ejector device of the present embodiment and the ejector device of the first embodiment can retract the ejector rod 4 into the housing 1.
Specifically, the first clutch lever assembly 11 of the present embodiment can separate the input stage gear 221 and the output stage gear 222. As shown in fig. 9, the first clutch lever assembly 11 includes a first clutch lever body 111 and a fourth elastic member 112, the fourth elastic member 112 is a spring, one end of the fourth elastic member 112 is connected to the housing 1, the other end can be abutted to the first clutch lever body 111, the first clutch lever body 111 can force the input stage gear 221 and the output stage gear 222 to be separated, and the fourth elastic member 112 can reset the first clutch lever body 111 to connect the input stage gear 221 and the output stage gear 222. Of course, in other embodiments of the present invention, the first clutch lever assembly 11 may disconnect the transmission connection between the reduction gear set 22 and the compound gear set 31, or the reduction gear set 22 includes a plurality of reduction gears, and the clutch lever assembly 8 disconnects the transmission connection between two of the reduction gears, which is specifically set according to the specific structure of the ejector device and the actual requirement of the user.
Further, as shown in fig. 9, the first clutch lever body 111 includes a first push rod 1111, a transition section 1112, a separation section 1113 and two guide posts 1114, the first push rod 1111 is fixedly connected to the transition section 1112, the two guide posts 1114 are fixedly connected to the first push rod 1111 and the transition section 1112, the fourth elastic member 112 is sleeved on the guide posts 1114, the transition section 1112 and the separation section 1113 are smoothly connected, and the thickness of the transition section 1112 is smaller than that of the separation section 1113. When the first clutch lever body 111 pushes the transition section 1112 and the separation section 1113 to move in a direction approaching to the clutch gear set, the separation section 1113 moves to the lower side of the output stage gear 222 and is clamped between the input stage gear 221 and the output stage gear 222, so that the output stage gear 222 moves in a direction deviating from the input stage gear 221, the input stage gear 221 and the output stage gear 222 are separated, at this time, the ejector lever 4 is manually pushed to reset to manually close the refrigerator door, the first clutch lever body 111 is reset under the action of the elastic force of the fourth elastic member 112, and the input stage gear 221 is connected with the output stage gear 222 under the action of the third elastic member 23.
Example III
The present embodiment differs from the first embodiment in that the ejector device of the present embodiment does not include the reset assembly 8 but includes the second clutch lever assembly 12, as shown in fig. 10 to 13, which second clutch lever assembly 12 is capable of disconnecting the drive connection of the worm 91 and the worm wheel assembly 92. When a special condition such as a sudden power failure occurs, the ejector rod 4 stops at the intermediate position and cannot be reset, so that the closing of the refrigerator door is affected, the ejector device of the present embodiment and the ejector devices of the first and second embodiments can retract the ejector rod 4 into the housing 1.
Specifically, as shown in fig. 10 and 11, the second clutch lever assembly 12 of the present embodiment includes a second clutch lever body 121 and a fifth elastic member 122, the fifth elastic member 122 is a spring, one end of which is connected to the housing 1, and the other end of which abuts against the second clutch lever body 121, the second clutch lever assembly can force the transmission connection between the worm 91 and the worm wheel assembly 92 to be disconnected, and the fifth elastic member 122 can reset the second clutch lever body 121 to make the worm 91 and the worm wheel assembly 92 in transmission connection.
Further, as shown in fig. 10 and 11, the second clutch lever body 121 of the present embodiment includes a second plunger 1211 and a limit post 1212, the second plunger 1211 is capable of sliding relative to the housing 1, the limit post 1212 is fixedly connected to the second plunger 1211, and the fifth elastic member 122 is a spring and is sleeved on the limit post 1212.
The second clutch lever assembly 12 of the present embodiment, as shown in fig. 11 and 12, further includes a mating member 123, a guide protrusion 103 is provided on the lower housing, and the mating member 123 is sandwiched between the second push rod 1211 of the second clutch lever body 121 and the guide protrusion 103. The matching piece 123 is provided with a first slope, the second push rod 1211 is provided with a second slope corresponding to the first slope, when the second push rod 1211 is pushed, the matching piece 123 moves towards the direction close to the worm gear assembly 92 and pushes the worm gear assembly 92 to be separated from the worm 91, so that the transmission connection between the worm 91 and the worm gear assembly 92 is disconnected, but the worm gear assembly 92 and the input stage gear 221 still keep an engaged state.
In order to reset the worm gear assembly 92, as shown in fig. 11, the second clutch lever assembly of the present embodiment further includes a sliding member 124 and a sixth elastic member 125, a mounting protrusion 101 is provided on the upper housing 1, a mounting groove is defined in the mounting protrusion 101, the sixth elastic member 125 is a spring and is located in the mounting groove and is clamped between the housing 1 and the sliding member 124, a sliding rail 102 is provided in the mounting groove, a sliding groove corresponding to the sliding rail 102 is provided on the sliding member 124, the sliding member 124 can slide in the mounting groove, and a limiting protrusion 1241 is further provided on the sliding member 124 in order to prevent the sliding member 124 from being separated from the mounting protrusion 101.
It should be noted that, the matching member 123, the worm gear assembly 92 and the sliding member 124 are all mounted on a mounting shaft (not shown in the drawings), so as to ensure that the matching member 123, the worm gear assembly 92 and the sliding member 124 can move along the axial direction of the mounting shaft, and the sixth elastic member 125 is sleeved on the mounting shaft. In a natural state, the sliding member 124 protrudes from the mounting protrusion 101 and has a gap with the worm gear assembly 92, when the second push rod 1211 is pushed, the worm gear assembly 92 abuts against the sliding member 124, the sixth elastic member 125 is compressed, the worm 91 and the worm gear assembly 92 are in transmission connection and disconnected, at this time, the ejector rod 4 is manually pushed to reset the ejector rod, so that the refrigerator door can be manually closed, then the second push rod 1211 is released, the fifth elastic member 122 can reset the second push rod 1211, and the sixth elastic member 125 pushes the sliding member 124, the worm gear assembly 92 and the matching member 123 to reset.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. The ejection device is characterized by comprising a shell (1), a power assembly (2), a transmission assembly (3) and an ejection rod (4), wherein the ejection rod (4) is slidably installed on the shell (1), the transmission assembly (3) is positioned in the shell (1) and is in transmission connection with the power assembly (2), the transmission assembly (3) comprises a compound gear set (31), a first rack (32) and a second rack (33), the first rack (32) and the second rack (33) are fixedly connected with the ejection rod (4), the compound gear set (31) comprises a first gear (311) and a second gear (312) which are coaxially arranged and fixedly connected, the first gear (311) can be meshed with the first rack (32), the second gear (312) can be meshed with the second rack (33), and the diameter of a first indexing circle of the first gear (311) is smaller than the diameter of a second indexing circle of the second gear (312);
The power assembly (2) can drive the first gear (311) to be meshed with the first rack (32) so as to drive the ejection rod (4) to extend out of the shell (1), and can also drive the second gear (312) to be meshed with the second rack (33) when the first gear (311) is disengaged from the first rack (32) so as to drive the ejection rod (4) to continuously extend out of the shell (1);
The first gear (311) is provided with a first notch (3110), the second gear (312) is provided with a second notch (3120), the ejection device further comprises a first elastic piece (5), one end of the first elastic piece (5) is connected with the shell (1), the other end of the first elastic piece is connected with the ejection rod (4), when the ejection rod (4) is reset by the first elastic piece (5), the first rack (32) can slide through the first notch (3110) and is not meshed with the first gear (311), and the second rack (33) can slide through the second notch (3120) and is not meshed with the second gear (312);
The ejection device further comprises a circuit board (61), a position switch (62) and a position collision block (7), wherein the position switch (62) is arranged on the circuit board (61), the circuit board (61) is arranged on the shell (1), the position switch (62) is electrically connected with the power assembly (2), the position collision block (7) is arranged on the compound gear set (31), and the position collision block (7) can touch the position switch (62) to close the power assembly (2) when the second gear (312) is disengaged from the second rack (33);
The ejection device further comprises a reset assembly (8), the reset assembly (8) is arranged on the shell (1), and the reset assembly (8) can push the first gear (311) to rotate along the direction of driving the ejection rod (4) to extend out of the shell (1);
The reset assembly (8) comprises a push rod (81) and a second elastic piece (82), one end of the second elastic piece (82) is connected with the shell (1), the other end of the second elastic piece is connected with the push rod (81), the push rod (81) can push the first gear (311) to rotate along the direction of driving the ejection rod (4) to extend out of the shell (1), and the second elastic piece (82) can reset the push rod (81) so as to separate the push rod (81) from the first gear (311);
the push rod (81) compresses the second elastic piece (82) to move towards the direction of extending into the shell (1), so that the first gear (311) is driven to rotate continuously, the second gear (312) is disengaged from the second rack (33), the push rod (81) is loosened, the second elastic piece (82) resets the push rod (81), and the first elastic piece (5) resets the ejection rod (4);
The power assembly (2) further comprises a third elastic piece (23), the third elastic piece (23) is a spring and is located between the output stage gear (222) and the second rotation connecting piece (224), one end of the third elastic piece (23) is abutted to the second rotation connecting piece (224), and the other end of the third elastic piece is abutted to the output stage gear (222) so that the second rotation connecting piece (224) is abutted to the input stage gear (221).
2. The ejection device according to claim 1, characterized in that the length of the first rack (32) is smaller than the length of the second rack (33).
3. The ejection device according to claim 1, characterized in that the modulus of the first gear (311) is greater than the modulus of the second gear (312).
4. A device according to any one of claims 1 to 3, wherein the power assembly (2) comprises a motor (21), a reduction gear set (22), a worm (91) and a worm wheel assembly (92), the worm (91) is provided at an output end of the motor (21), the worm wheel assembly (92) is respectively capable of meshing with the worm (91) and the reduction gear set (22), and the reduction gear set (22) is in transmission connection with the compound gear set (31).
5. The ejection device according to claim 4, wherein the reduction gear set (22) is a unidirectional reduction gear set, the input stage gear (221) is capable of driving the output stage gear (222) to rotate, and the output stage gear (222) is meshed with the compound gear set (31).
6. The ejection device according to claim 5, wherein the compound gear set (31) further comprises a third gear (313), the third gear (313) is in transmission connection with the power assembly (2), the third gear (313) is integrally formed with the second gear (312), third meshing teeth of the third gear (313) and second meshing teeth of the second gear (312) are integrally formed into compound teeth, the compound teeth extend along an axial direction of the third gear (313), and the compound teeth are meshed with the output stage gear (222) when the first gear (311) is meshed with the first rack (32).
7. A refrigerator, characterized by comprising a refrigerator body, a refrigerator door and an ejection device according to any one of claims 1-6, wherein the refrigerator door is rotatably connected to the refrigerator body, the ejection device is arranged on the refrigerator body, and the ejection rod (4) can be abutted with the refrigerator door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202458.0A CN113494224B (en) | 2020-03-20 | 2020-03-20 | Ejection device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202458.0A CN113494224B (en) | 2020-03-20 | 2020-03-20 | Ejection device and refrigerator |
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| Publication Number | Publication Date |
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| CN113494224A CN113494224A (en) | 2021-10-12 |
| CN113494224B true CN113494224B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010202458.0A Active CN113494224B (en) | 2020-03-20 | 2020-03-20 | Ejection device and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102023107855B4 (en) * | 2023-03-28 | 2024-10-10 | Emz-Hanauer Gmbh & Co. Kgaa | Actuator mechanism for a household item |
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| CN1277482A (en) * | 1999-06-10 | 2000-12-20 | 株式会社三协精机制作所 | Movement auxiliary device and refrigerator |
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|---|---|
| CN113494224A (en) | 2021-10-12 |
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