CN110595141A - Clutch automatic door opening device and refrigerator - Google Patents
Clutch automatic door opening device and refrigerator Download PDFInfo
- Publication number
- CN110595141A CN110595141A CN201810836694.0A CN201810836694A CN110595141A CN 110595141 A CN110595141 A CN 110595141A CN 201810836694 A CN201810836694 A CN 201810836694A CN 110595141 A CN110595141 A CN 110595141A
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- driving
- linkage
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- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention provides a clutch automatic door opener and a refrigerator, wherein the clutch automatic door opener comprises a base, a driving source, a push rod and a transmission assembly arranged between the driving source and the push rod, the push rod is movably arranged on the base, the transmission assembly comprises a central shaft fixed on the base, a driving wheel and a driven wheel sleeved on the central shaft, a clutch wheel arranged between the driving wheel and the driven wheel and a linkage wheel positioned on one side of the driving wheel, which is far away from the clutch wheel, the clutch wheel and the linkage wheel are mutually fixed along the circumferential direction of the central shaft, and the clutch wheel can axially move relative to the linkage wheel; the transmission assembly also comprises an elastic part which acts on the linkage wheel. Through the relative action wheel rotation of separation and reunion wheel to make the separation and reunion wheel along axial displacement, realize action wheel and follow the transform of driving wheel cooperation relation, simple to operate can realize opening of the light of the refrigerator door body, and is rational in infrastructure, and work is more reliable, improves user experience.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to an automatic clutch door opening device and a refrigerator.
Background
With the improvement of living standard, refrigerators with larger volume are increasingly popular and accepted in the market, but the door body of the refrigerator with larger volume has heavy weight and larger door seal suction force. A class of electric door opening devices are disclosed in the industry, but the torque demand output by a motor is high, the installation position is limited, the noise is high, and the user experience is influenced.
The initial stage of the opening process of the refrigerator door body needs enough acting force to overcome the door sealing suction force, the subsequent moving process of the door body only needs to overcome the automatic door closing locking force and the friction force of the hinge, and correspondingly, the acting force needed by the subsequent moving process of the door body is smaller. In view of this, an automatic door opening device is also disclosed in the industry, which opens the door body after pushing the door body away from the box body by the push rod, but further optimization and improvement are urgently needed in the structure.
Disclosure of Invention
The invention aims to provide a clutch automatic door opening device and a refrigerator, which can realize easy opening of a refrigerator door body, have a reliable structure and improve user experience.
In order to achieve the aim, the invention provides a clutch automatic door opening device which comprises a base, a driving source, a push rod and a transmission assembly arranged between the driving source and the push rod, wherein the push rod is movably arranged on the base; the transmission assembly comprises a central shaft fixed on the base, a driving wheel and a driven wheel sleeved on the central shaft, and a clutch wheel arranged between the driving wheel and the driven wheel, the driving wheel is connected to the output end of a driving source, the driven wheel is used for driving the push rod to move, the transmission assembly further comprises a linkage wheel sleeved on the central shaft, and an elastic part arranged between the driving wheel and the linkage wheel, the linkage wheel and the clutch wheel are respectively positioned on two sides of the driving wheel, the clutch wheel and the linkage wheel are mutually fixed along the circumferential direction of the central shaft, and the clutch wheel can move axially relative to the linkage wheel;
at least one of the side of the driving wheel facing the clutch wheel and the side of the clutch wheel facing the driving wheel is provided with a guide surface which is inclined relative to the central axis, so that the clutch wheel moves along the axial direction when the driving wheel and the clutch wheel rotate relatively;
the clutch wheel is provided with a separation state and a connection state, when the driving wheel is started to rotate, the driving wheel rotates relative to the clutch wheel, the clutch wheel moves towards the driven wheel along the axial direction to the connection between the butting block and the driving block, and the clutch wheel is switched to the connection state to drive the driven wheel to rotate; when the driving wheel stops rotating, the elastic piece drives the linkage wheel to rotate, the clutch wheel and the driving wheel are driven to rotate relatively, and the clutch wheel moves towards the driving wheel along the axial direction and returns to a separation state.
As a further improvement of the present invention, a first protrusion and a second protrusion are respectively formed on a side of the driving wheel opposite to the clutch wheel, the guide surface includes a first guide surface formed on the first protrusion and a second guide surface formed on the second protrusion, the first guide surface and the second guide surface are abutted against each other, and the first guide surface and the second guide surface slide relatively in a circumferential direction so that the clutch wheel moves axially relative to the driving wheel.
As a further improvement of the present invention, the first protrusion further has a first abutting surface circumferentially opposite to the first guiding surface, and the second protrusion further has a second abutting surface circumferentially opposite to the second guiding surface; the inclination angle of the first abutting surface relative to the central axis is smaller than that of the first guide surface relative to the central axis, and the inclination angle of the second abutting surface relative to the central axis is smaller than that of the second guide surface relative to the central axis.
As a further improvement of the present invention, the first protrusions are provided in at least two and uniformly distributed along the circumferential direction; the second lugs are also arranged into at least two and are uniformly distributed along the circumferential direction.
As a further improvement of the invention, a central through hole is formed in the middle of the driving wheel; the linkage wheel is provided with a shaft sleeve sleeved on the central shaft, the shaft sleeve is provided with a first matching part matched with the central through hole and a second matching part matched with the clutch wheel, and the driving wheel can rotate around the first matching part.
As a further improvement of the present invention, the second fitting portion is provided in a hexagonal shape; the clutch wheel is provided with a slot matched with the second matching part, and the slot is arranged in a penetrating mode along the axial direction of the central shaft.
As a further improvement of the present invention, the linkage wheel includes a linkage wheel disc and an installation portion axially protruding from a central position of the linkage wheel disc, the elastic member includes an elastic main body sleeved on the installation portion, and a first elastic arm and a second elastic arm connected to the elastic main body, the first elastic arm and the second elastic arm are mutually crossed, the driving wheel protrudes towards one side of the linkage wheel to form a first convex plate, the linkage wheel is formed with a second convex plate, and the first convex plate and the second convex plate are both located between the first elastic arm and the second elastic arm.
As a further improvement of the present invention, an opening matched with the first convex plate is formed on the linkage wheel disc, the opening is arranged along the central shaft in an arc shape, and the first convex plate and the second convex plate are both arranged in an arc plate shape.
As a further improvement of the invention, the transmission assembly further comprises a holding seat fixed on the base, and the holding seat is provided with an elastic hoop used for fixing the linkage wheel.
The invention also provides a refrigerator which comprises a refrigerator body and a door body arranged on the front side of the refrigerator body, and the refrigerator also comprises the clutch automatic door opening device, wherein the clutch automatic door opening device is arranged on the refrigerator body and is used for automatically opening the door body.
The invention has the beneficial effects that: when the clutch automatic door opening device and the refrigerator are adopted, the driving wheel is driven to move and switch to a joint state when being started and rotated, and then the driven wheel is driven to rotate together; when the driving wheel stops rotating, the elastic piece drives the linkage wheel and the driving wheel to rotate relatively, and the clutch wheel is enabled to return to a separation state. This automatic door opener of separation and reunion switches between separation state and engaged state through coordinated wheel control clutch wheel to realize the switching of the cooperation state between action wheel and the follow driving wheel, when the driving source stopped output, the clutch wheel in time switches into the separation state, uses more safe and reliable, prevents unexpected striking damage, and is rational in infrastructure, improves user experience.
Drawings
FIG. 1 is a schematic view of the whole structure of the clutch automatic door opener of the invention;
FIG. 2 is a schematic view of the internal assembly structure of the clutch automatic door opener of FIG. 1;
FIG. 3 is an exploded view of the clutch automatic door opener of FIG. 1;
FIG. 4 is a partially exploded view of the transmission assembly of the clutch automatic door opener of the present invention;
FIG. 5 is an exploded view of the drive assembly of FIG. 4, partially in another perspective;
FIG. 6 is a schematic structural diagram of a clutch wheel in a transmission assembly of the clutch automatic door opener of the invention;
FIG. 7 is a schematic structural diagram of a connecting rod of a travel switch of the clutch automatic door opener of the invention;
fig. 8 is a schematic view of the overall structure of the refrigerator of the present invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.
Referring to fig. 1 to 3, a clutch automatic door opener 100 according to the present invention includes a base 1, a driving source 2, a push rod 3, an elastic restoring member 4 connected between the base 1 and the push rod 3, and a transmission assembly 5 disposed between the driving source 2 and the push rod 3.
The base 1 comprises a first shell 11 and a second shell 12 which are buckled with each other, an installation space is formed between the first shell 11 and the second shell 12, and a plurality of screw holes 13 for positioning and installation are further formed in the first shell 11 and the second shell 12. The driving source 2 is fixed in the installation space; the push rod 3 is movably mounted on the base 1, and the driving source 2 can drive the push rod 3 to move along the extending direction thereof through the transmission assembly 5. Here, the driving source 2 is provided as a motor including a motor body 21, an output shaft 22 protruding outward from the motor body 21, and a worm 23 connected to the output shaft 22. The motor body 21 is further provided with a power line (not shown) connected to an external power supply, and one end of the worm 23, which is away from the motor body 21, is further provided with a support bearing 24 fixed on the base 1, so that the worm 23 is more stable in the rotating process, and the deflection is reduced.
The push rod 3 can be extended outwards from an initial position retracted in the installation space to open the corresponding door body, so that the user can open the door more easily. Elasticity resets 4 and sets up to the extension spring, the extension spring exerts the elastic stress towards in the installation space to push rod 3, works as when the motor stops the output, the extension spring pulls push rod 3 to initial position. Preferably, a through hole 14 for the push rod 3 to protrude outwards is formed between the first housing 11 and the second housing 12, and an end of the push rod 3 protruding outwards in the initial position is flush with an opening of the through hole 14.
The transmission assembly 5 comprises a central shaft 51 fixed on the base 1, a driving wheel 52 sleeved on the central shaft 51, a driven wheel 53 and at least one transmission wheel for connecting the driven wheel 53 with the push rod 3; a clutch wheel is also arranged between the driving wheel 52 and the driven wheel 53. Here, the driving wheel includes a first driving wheel 541 engaged with the driven wheel 53 and a second driving wheel 542 connecting the first driving wheel 541 and the push rod 3, and a rack 31 engaged with the second driving wheel 542 is formed on a side of the push rod 3 facing the second driving wheel 542. The first driving wheel 541 and the second driving wheel 542 can be set with different transmission ratios according to actual door opening requirements. The first driving wheel 541 is correspondingly provided with a first pivot shaft 543, the second driving wheel 542 is correspondingly provided with a second pivot shaft 544, the first pivot shaft 543 and the second pivot shaft 544 are fixed on the base 1, and the first pivot shaft 543 and the second pivot shaft 544 are both parallel to the central shaft 51.
Here, the first driving wheel 541 includes a first engagement portion 5411 and a second engagement portion 5412 which are provided adjacent to each other in the axial direction of the center shaft 51, and the first engagement portion 5411 is engaged with the driven wheel 53. The second transmission wheel 542 has a third engagement portion 5421 and a fourth engagement portion 5422 which are adjacently arranged along the axial direction of the central shaft 51, wherein the third engagement portion 5421 is engaged with the second engagement portion 5412, and the second engagement portion 5422 is engaged with the rack 31. Thereby, when the driven wheel 53 rotates, the push rod 3 is driven to move; on the contrary, when the push rod 3 moves, the first driving wheel 541, the second driving wheel 542 and the driven wheel 53 rotate along with the push rod.
Referring to fig. 4, the driving wheel 52 and the driven wheel 53 are disposed adjacent to each other along the axial direction of the central shaft 51, and the central shaft 51 has a fixed end 511 disposed on a side of the driven wheel 53 facing away from the driving wheel 52 and configured to be fixed to the base 1.
As shown in fig. 5 to 6, the transmission assembly 5 further includes a clutch wheel 55 disposed between the driving wheel 52 and the driven wheel 53, a linkage wheel 57 located on a side of the driving wheel 52 away from the driven wheel 53, a holding seat 58 fixed on the base 1, and an elastic member 59 acting on the linkage wheel 57. The clutch wheel 55 and the linkage wheel 57 are fixed to each other along the circumferential direction of the central shaft 51, and the clutch wheel 55 can move relative to the linkage wheel 57 along the axial direction. Specifically, at least one of the driving wheel 52 facing the clutch wheel 55 and the clutch wheel 55 facing the driving wheel 52 is formed with a guide surface inclined with respect to the central axis 51, so that the clutch wheel 55 moves in the axial direction when the driving wheel 52 and the clutch wheel 55 rotate relatively.
In this embodiment, the driving wheel 52 includes a driving wheel 521 and a first protrusion 522 formed on a side of the driving wheel 521 facing the clutch wheel 55; the clutch wheel 55 has a second protrusion 551 formed on a side facing the driver 52, the guide surface includes a first guide surface 523 formed on the first protrusion 522 and a second guide surface 552 formed on the second protrusion 551, the first guide surface 523 and the second guide surface 552 are abutted against each other, and the first guide surface 523 and the second guide surface 552 slide relative to each other in a circumferential direction so that the clutch wheel 55 moves in an axial direction relative to the driver 52. The first bump 522 further has a first abutting surface 524 circumferentially opposite to the first guide surface 523, and the second bump 551 further has a second abutting surface 553 circumferentially opposite to the second guide surface 552; the inclination angle of the first abutting surface 524 with respect to the central axis 51 is smaller than the inclination angle of the first guiding surface 523 with respect to the central axis 51, and the inclination angle of the second abutting surface 553 with respect to the central axis 51 is smaller than the inclination angle of the second guiding surface 552 with respect to the central axis 51. Specifically, the first abutting surface 524 and the second abutting surface 553 are both disposed along the axial direction, and when the first abutting surface 524 and the second abutting surface 553 are connected, the clutch wheel 55 is located at a position closest to the driving wheel 52 along the axial direction, and the clutch wheel 55 and the driven wheel 53 are kept disengaged from each other.
The driven wheel 53 and the clutch wheel 55 are provided with a driving block 531 and a holding block 554 at the opposite sides. The clutch wheel 55 has a disengaged state and an engaged state, when the driving wheel 52 is turned on and rotates, the driving wheel 52 rotates relative to the clutch wheel 55, so that the clutch wheel 55 moves towards the driven wheel 53 along the axial direction until the abutting block 554 abuts against the driving block 531, and the clutch wheel 55 is switched to the engaged state to drive the driven wheel 53 to rotate; when the driving wheel 52 stops rotating, the elastic member 59 drives the linkage wheel 57 to rotate, that is, the clutch wheel 55 rotates relative to the driving wheel 52 along with the linkage wheel 57, the clutch wheel 55 moves towards the driving wheel 52 along the axial direction and returns to the separated state, and at this time, the push rod 3 contracts towards the installation space under the action of the elastic restoring member 4.
The first protrusions 522 and the second protrusions 551 are disposed at least two and uniformly distributed along the circumferential direction, so that the driving wheel 52 and the clutch wheel 55 are more stably and uniformly stressed during the relative rotation between the driving wheel and the clutch wheel. Similarly, in order to make the transmission force between the clutch wheel 55 and the driven wheel 53 more uniform and reduce the wear, the driving block 531 and the abutting block 554 are also preferably provided in at least two and uniformly distributed along the central shaft 51. The holding seat 58 and the elastic element 59 are directly matched with the linkage wheel 57 and are positioned on one side of the driving wheel 52 away from the driven wheel 53, so that the processing design and the assembly of the components are facilitated.
In addition, the clutch wheel 55 is formed with a connecting rod 555 protruding toward the driving wheel 52, and the driving wheel 52 is correspondingly formed with a receiving portion 525 for receiving the connecting rod 555. The connecting rods 555 are preferably at least two and are uniformly distributed along the circumferential direction of the central shaft 51, and when the clutch wheel 55 is switched to the engaged state, the connecting rods 555 are preferably just abutted against one side of the accommodating portion 525 so as to ensure that the driving wheel 52 and the driven wheel 53 are in transmission fit connection.
The linkage wheel 57 comprises a linkage wheel disc 571 and a mounting part 572 formed on one side of the linkage wheel disc 571, which is far away from the driving wheel 52; the elastic member 59 includes an elastic body 591 sleeved on the mounting portion 572, and a first elastic arm 592 and a second elastic arm 593 connected to the elastic body 591. The first elastic arm 592 and the second elastic arm 593 are arranged to intersect with each other, the driving wheel 52 further includes a first protruding plate 526 protruding from the driving wheel disc 521 toward one side of the linkage wheel 57, the linkage wheel 57 is formed with a second protruding plate 573, the first protruding plate 526 and the second protruding plate 573 are inserted between the first elastic arm 592 and the second elastic arm 593, and the first protruding plate 526 and the second protruding plate 573 are arranged to be arc-shaped plate-shaped. Here, the linking disk 571 is further formed with an opening 574 that is matched with the first boss 526, and the second boss 573 is located beside the opening 574. The opening 574 is disposed along the central axis 51 in an arc shape, and an angle range of the first protruding plate 526 from one side of the opening 574 to the other side of the opening 574 is set to be greater than or equal to a rotation angle of the clutch wheel 55 relative to the driver 52 when the clutch wheel 55 is switched from the disengaged state to the engaged state. According to practical verification, the rotation angle is preferably set to be 10 to 30 °, and the extension of the first guide surface 523 and the second guide surface 552 in the circumferential direction is set to be an angle exceeding the rotation angle.
The linkage wheel disc 571 is further formed with a matching groove 575 symmetrically arranged relative to the central shaft 51, and the driving wheel disc 521 is formed with a matching convex plate 527 extending into the matching groove 575 towards one side of the linkage wheel 57. When the clutch wheel 55 is in the engaged state, the first protruding plate 526 abuts against one side of the opening 574, and simultaneously, the matching protruding plate 527 abuts against one side of the matching groove 575, so that the linkage wheel 57 rotates along with the rotation of the driving wheel 52, and the stress is uniformly dispersed.
A central through hole 528 is formed in the middle of the driving disc 521, and a shaft sleeve 576 sleeved on the central shaft 51 is formed in the middle of the linkage disc 571. The bushing 576 has a first engagement portion 5761 that is adapted to the central through hole 528 such that the driver 52 is rotatable about the first engagement portion 5761. The shaft sleeve 576 further has a second matching portion 5762 connected to the clutch wheel 55, the second matching portion 5762 is disposed in a hexagonal shape, and the clutch wheel 55 is correspondingly disposed with the second matching portion 5762 and is a slot 556 having an inner hexagonal shape, so that the clutch wheel 55 and the linkage wheel 57 rotate synchronously. The insertion groove 556 is axially penetrated so that the clutch wheel 55 can reciprocate along the second engagement portion 5762.
The holder 58 includes a base 581, a cover 582, and a holder 583 disposed between the base 581 and the cover 582 and fixed to the base 581. A fixing hole 5811 for fixing the central shaft 51 is arranged in the middle of the seat body 581; the cover body 582 and the driving wheel 52 are arranged in a clearance; the linking disc 571 is located between the base 581 and the cover 582, and the linking disc 571 and the retaining sleeve 583 are disposed with a gap therebetween. The fixing base 58 further includes an elastic clamp 584 disposed between the fixing sleeve 583 and the linkage wheel 57, and when the driving wheel 52 stops rotating, the elastic clamp 584 is configured to fix the linkage wheel 57 in the fixing sleeve 583.
The elastic clip 584 has a C-shaped snap ring 5841 circumferentially extending along the inner surface of the retaining sleeve 583 and an abutting arm 5842 protruding from the end of the C-shaped snap ring 5841 toward the linkage wheel 57. The linking disc 571 is formed with a pressing portion 577 matching with the pressing arm 5842. When the driving wheel 52 applies an acting force exceeding a preset threshold value to the linkage wheel 57, the pressing portion 577 presses the pressing arm 5842 to enable the C-shaped snap ring 5841 to contract and deform along the radial direction, the elastic clamp 584 releases the clasping state of the linkage wheel 57, and the linkage wheel rotates in the holding seat 58. When the driving wheel 52 stops rotating, the elastic clamp 584 returns to the state of keeping the linkage wheel 57 and the holding seat 58 locked.
Besides, the clutch automatic door opener 100 further comprises a travel switch matched with the transmission wheel. Specifically, a cam portion 5423 is formed on one side of the second transmission wheel 542; the travel switch includes a link 61 and a microswitch (not shown) provided at one end of the link 61. As shown in fig. 7, the link 61 includes a trigger portion 611 pressed against the microswitch, a sleeve portion 612 sleeved on the cam portion 5423, and a connecting portion 613 connecting the trigger portion 611 and the sleeve portion 612. The sleeve joint part 612 is provided with a bulge 614, and in the rotating process of the second driving wheel 542, the cam part 5423 is matched with the bulge 614 to realize the triggering of the microswitch, so as to realize the stroke detection and control of the push rod 3.
Referring to fig. 8, the invention further provides a refrigerator 200 using the clutch automatic door opening device 100, wherein the refrigerator 200 includes a box 201 and a door 202 disposed at a front side of the box 201. The clutch automatic door opener 100 is arranged on the box body 201 and is adjacent to an opening in the front of the box body 201; the door body 202 is pivotally mounted on the box 201, and the clutch automatic door opening device 100 is preferably disposed on a side away from a pivoting axis of the door body 202. Of course, the door body 202 may also be a pull-out door body, and in this case, the clutch automatic door opening device 100 preferably corresponds to a middle position of the door body 202 along the transverse direction. The push rod 3 extends in the front-back direction, and the push rod 3 can push the door body 202 away from the box body 201 under the driving of the driving source 2 and the transmission assembly 5, so that the door opening operation of a user is facilitated. According to the actual assembly and appearance requirements of the refrigerator 200, the clutch automatic door opening device 100 can be disposed in the box 201 or disposed close to the outer surface of the box 201. Any door body 202 of the refrigerator 200 can be provided with the clutch automatic door opening device 100, so that the operation of the corresponding door body 202 is facilitated.
In summary, with the clutch automatic door opener 100 and the refrigerator 200 of the present invention, when the driving wheel 52 is turned on and rotates, the clutch wheel 55 is driven to switch to the engaged state, and then the driven wheel 53 is driven to rotate; when the driving wheel 52 stops rotating, the elastic member 59 drives the clutch wheel 55 and the driving wheel 52 to rotate relatively, and returns to the separated state. The clutch automatic door opening device 100 can realize the switching of the matching state between the driving wheel 52 and the driven wheel 53 by the relative rotation and the axial movement of the clutch wheel 55 and the driving wheel 52, and the structure is more durable and reliable while the automatic door opening is realized; when the push rod 3 is moved and completed, the clutch wheel 55 can be switched to a separated state in time, accidental impact damage is prevented, the use is safer, and the user experience is improved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an automatic door opener of separation and reunion, includes base, driving source, push rod and sets up transmission assembly between driving source and the push rod, the push rod movable mounting in base, its characterized in that: the transmission assembly comprises a central shaft fixed on the base, a driving wheel and a driven wheel sleeved on the central shaft, and a clutch wheel arranged between the driving wheel and the driven wheel, the driving wheel is connected to the output end of a driving source, the driven wheel is used for driving the push rod to move, the transmission assembly further comprises a linkage wheel sleeved on the central shaft, and an elastic part arranged between the driving wheel and the linkage wheel, the linkage wheel and the clutch wheel are respectively positioned on two sides of the driving wheel, the clutch wheel and the linkage wheel are mutually fixed along the circumferential direction of the central shaft, and the clutch wheel can move axially relative to the linkage wheel;
at least one of the side of the driving wheel facing the clutch wheel and the side of the clutch wheel facing the driving wheel is provided with a guide surface which is inclined relative to the central axis, so that the clutch wheel moves along the axial direction when the driving wheel and the clutch wheel rotate relatively;
the clutch wheel is provided with a separation state and a connection state, when the driving wheel is started to rotate, the driving wheel rotates relative to the clutch wheel, the clutch wheel moves towards the driven wheel along the axial direction to the connection between the butting block and the driving block, and the clutch wheel is switched to the connection state to drive the driven wheel to rotate; when the driving wheel stops rotating, the elastic piece drives the linkage wheel to rotate, the clutch wheel and the driving wheel are driven to rotate relatively, and the clutch wheel moves towards the driving wheel along the axial direction and returns to a separation state.
2. The clutched automatic door opener of claim 1, wherein: the clutch device comprises a driving wheel, a clutch wheel and a driving wheel, wherein a first lug and a second lug are respectively formed on one side, opposite to the driving wheel and the clutch wheel, of the driving wheel, the guide surface comprises a first guide surface formed on the first lug and a second guide surface formed on the second lug, the first guide surface and the second guide surface are mutually abutted, and the clutch wheel can move axially relative to the driving wheel due to relative sliding of the first guide surface and the second guide surface along the circumferential direction.
3. The clutched automatic door opener of claim 2, wherein: the first lug is also provided with a first abutting surface which is opposite to the first guide surface along the circumferential direction, and the second lug is also provided with a second abutting surface which is opposite to the second guide surface along the circumferential direction; the inclination angle of the first abutting surface relative to the central axis is smaller than that of the first guide surface relative to the central axis, and the inclination angle of the second abutting surface relative to the central axis is smaller than that of the second guide surface relative to the central axis.
4. The clutched automatic door opener of claim 2, wherein: the number of the first lugs is at least two and the first lugs are uniformly distributed along the circumferential direction; the second lugs are also arranged into at least two and are uniformly distributed along the circumferential direction.
5. The clutched automatic door opener of claim 1, wherein: a central through hole is formed in the middle of the driving wheel; the linkage wheel is provided with a shaft sleeve sleeved on the central shaft, the shaft sleeve is provided with a first matching part matched with the central through hole and a second matching part matched with the clutch wheel, and the driving wheel can rotate around the first matching part.
6. The clutched automatic door opener of claim 5, wherein: the second matching part is arranged in a hexagonal shape; the clutch wheel is provided with a slot matched with the second matching part, and the slot is arranged in a penetrating mode along the axial direction of the central shaft.
7. The clutched automatic door opener of claim 1, wherein: linkage wheel includes the linkage rim plate and certainly linkage rim plate central point puts the installation department that forms along axial projection, the elastic component is located including the cover the elastic main body of installation department and be connected to the first elastic arm and the second elastic arm of elastic main body, first elastic arm and second elastic arm intercrossing set up, the action wheel is formed with first flange towards linkage wheel one side projection, the linkage wheel is formed with the second flange, first flange and second flange all are located between first elastic arm and the second elastic arm.
8. The clutched automatic door opener of claim 7, wherein: an opening matched with the first convex plate is formed in the linkage wheel disc, the opening is arranged in an arc shape along the central shaft, and the first convex plate and the second convex plate are both arranged in an arc plate shape.
9. The clutched automatic door opener of claim 1, wherein: the transmission assembly further comprises a fixing seat fixed on the base, and the fixing seat is provided with an elastic hoop used for fixing the linkage wheel.
10. The utility model provides a refrigerator, includes the box and sets up the door body of box front side, its characterized in that: the refrigerator further comprises an automatic clutch door opener according to any one of claims 1 to 9, which is mounted on the refrigerator body and is used for automatically opening the door body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836694.0A CN110595141B (en) | 2018-07-26 | 2018-07-26 | Clutch automatic door opening device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836694.0A CN110595141B (en) | 2018-07-26 | 2018-07-26 | Clutch automatic door opening device and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110595141A true CN110595141A (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060742A1 (en) * | 2022-09-20 | 2024-03-28 | 合肥美的电冰箱有限公司 | Refrigerator |
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| CN2310295Y (en) * | 1997-07-13 | 1999-03-10 | 徐太白 | Slide type double-door refrigerator |
| CN2723639Y (en) * | 2004-09-15 | 2005-09-07 | 汤树海 | Automatic opening device for door and window |
| CN203308281U (en) * | 2013-07-03 | 2013-11-27 | 福州阿尔卡诺智能科技有限公司 | Locking mechanism of ratchet gear of door opener |
| KR101712431B1 (en) * | 2015-12-11 | 2017-03-06 | 주식회사 창일이엘티 | Apparatus for opening and closing the door of sliding method |
| CN207351056U (en) * | 2017-09-14 | 2018-05-11 | 合肥华凌股份有限公司 | Refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0807734A2 (en) * | 1996-05-17 | 1997-11-19 | Valeo Systèmes de Fermetures | Car door lock |
| CN2310295Y (en) * | 1997-07-13 | 1999-03-10 | 徐太白 | Slide type double-door refrigerator |
| CN2723639Y (en) * | 2004-09-15 | 2005-09-07 | 汤树海 | Automatic opening device for door and window |
| CN203308281U (en) * | 2013-07-03 | 2013-11-27 | 福州阿尔卡诺智能科技有限公司 | Locking mechanism of ratchet gear of door opener |
| KR101712431B1 (en) * | 2015-12-11 | 2017-03-06 | 주식회사 창일이엘티 | Apparatus for opening and closing the door of sliding method |
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| WO2024060742A1 (en) * | 2022-09-20 | 2024-03-28 | 合肥美的电冰箱有限公司 | Refrigerator |
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| CN110595141B (en) | 2020-12-25 |
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Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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