CN109708399B - Clutch automatic door opening device and refrigerator - Google Patents
Clutch automatic door opening device and refrigerator Download PDFInfo
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- CN109708399B CN109708399B CN201810837697.6A CN201810837697A CN109708399B CN 109708399 B CN109708399 B CN 109708399B CN 201810837697 A CN201810837697 A CN 201810837697A CN 109708399 B CN109708399 B CN 109708399B
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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, and a sliding block arranged between the driving wheel and the driven wheel, and a driving block matched with the sliding block is formed on the driven wheel. The transmission assembly further comprises a guide wheel sleeved on the central shaft and an elastic piece acting on the guide wheel, a guide groove used for accommodating the sliding block is formed in the guide wheel, and the sliding block moves in a telescopic mode along the guide groove to achieve the transformation of the matching state of the driving wheel and the driven wheel. Can realize the light of refrigerator door body and open to order about the action wheel antiport through the driving source, realize the automatic shrink of push rod, rational in infrastructure, it is more reliable to work, 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, a kind of automatic door opening device is also disclosed in the industry, which uses a motor to drive a push rod to push the door away from the box body, so as to open the door, 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 purpose, 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 further comprises a guide wheel sleeved on the central shaft and an elastic piece acting on the guide wheel, a guide groove used for accommodating the sliding block is formed in the guide wheel, the guide groove and the central shaft are arranged in a staggered mode, the guide groove penetrates through the guide wheel, and two ends of the guide groove are located on the outer peripheral surface of the guide wheel;
the driven wheel is provided with a driving block which is positioned on the periphery of the guide wheel and is arranged at an interval with the guide wheel, the sliding block is provided with a separation state, a first joint state and a second joint state, when the driving wheel is started to rotate along a first direction, the sliding block is driven to protrude outwards along the guide groove, and when the first end of the sliding block is abutted against the driving block, the sliding block is switched to the first joint state so as to drive the driven wheel to rotate; when the driving wheel is started to rotate along a second direction opposite to the first direction, the sliding block is driven to protrude outwards along the guide groove, and when the second end of the sliding block abuts against the driving block, the sliding block is switched to a second joint state, so that the driven wheel is driven to rotate;
when the driving wheel stops rotating, the elastic piece drives the guide wheel and the driving wheel to rotate relatively, so that the first end and the second end of the sliding block are separated from the driving block, and the sliding block returns to a separation state.
As a further improvement of the present invention, the guide groove is provided in a direction perpendicular to the center axis.
As a further improvement of the present invention, the two guide grooves are symmetrically arranged with respect to the central axis, and the two slide blocks are respectively located in the two guide grooves.
As a further improvement of the present invention, the driving wheel includes a driving wheel disc and a driving gear ring disposed along the periphery of the driving wheel disc and engaged with the output end of the driving source, the driving gear ring and the guide wheel are disposed at an interval, and an accommodating cavity for accommodating the guide wheel is formed in the driving gear ring.
As a further improvement of the invention, a groove is formed on one side of the sliding block facing the driving wheel disc; the driving wheel disc is provided with a lug which extends into the groove in a probing mode, and the lug can rotate in the groove relatively, so that when the guide wheel is static, the lug can drive the sliding block to move in a telescopic mode along the guide groove.
As a further improvement of the present invention, the groove is formed with two abutting surfaces oppositely arranged along the extending direction of the guide groove, and the two side edges of the projection along the circumferential direction are arranged in an arc shape and respectively connected with the two abutting surfaces.
As a further improvement of the invention, the guide wheel is also provided with a limit groove communicated to the guide groove, and the lug is arranged in the limit groove in a penetrating way; the movable angle range of the lug relative to the central shaft in the limiting groove is larger than or equal to the angle change range of the slider changing from the first joint state to the second joint state.
As a further improvement of the present invention, two ends of the slider respectively form a first arc-shaped end surface and a second arc-shaped end surface opposite to the central shaft, and when the slider is in a separated state, the first arc-shaped end surface and the second arc-shaped end surface do not exceed the outer peripheral surface of the guide wheel.
As a further improvement of the invention, the transmission assembly further comprises a transmission wheel arranged between the push rod and the driven 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: by adopting the clutch automatic door opening device and the refrigerator, the driving source can drive the driving wheel to rotate along the first direction or the second direction, further drive the sliding block to be switched from the separating state to the first joint state or the second joint state, and then drive the guide wheel and the driven wheel to rotate together; when the driving wheel stops rotating, the elastic piece drives the guide wheel to rotate relative to the driving wheel, the first end or the second end of the sliding block is separated from the driving block, and the sliding block returns to a separation state. This automatic door opener of separation and reunion can realize through the flexible removal of slider in the guide way the switching of the cooperation state between action wheel and the follow driving wheel, the push rod pushes away the door body from the box after, orders about the action wheel reverse rotation through the driving source, can make the push rod shrink towards the base. Safe and reliable, it is rational in infrastructure, improve 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 view of the structure of the clutch automatic door opener of the present invention in which the slider and the guide wheel are engaged in a disengaged state;
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, the clutch automatic door opener 100 of the present invention includes a base 1, a driving source 2, a 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 bidirectional 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 retracted from the initial position in the installation space and protrudes outwards to open the door body, so that a user can open the door more easily. The bidirectional motor rotates in different directions, so that the push rod 3 can be driven to protrude outwards from the initial position or retract to the initial position in the installation space. 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 includes 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 and a push rod. 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 fourth 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 and fig. 6, the transmission assembly 5 further includes a guide wheel 55 disposed between the driving wheel 52 and the driven wheel 53, a sliding block 56, a linkage wheel 57 located on a side of the driving wheel 52 away from the driven wheel 53, and a holding seat 58 fixed on the base 1. The guide wheel 55 is formed with a guide groove 551 for accommodating the slider 56, the guide groove 551 is disposed to be offset from the center shaft 51, and both ends of the guide groove 551 are opened on the outer peripheral surface of the guide wheel 55. The driven wheel 53 is provided with a driving block 531 at the periphery of the guide wheel 55, the driving block 531 and the guide wheel 55 are arranged at intervals, and the sliding block 56 is matched with the driving block 531 to realize the transmission connection between the driving wheel 52 and the driven wheel 53. The transmission assembly 5 further comprises an elastic member 59 acting on the guide wheel 55. Here, the guide wheel 55 and the linkage wheel 57 are respectively disposed at both sides of the driving wheel 52 along the axial direction, and the guide wheel 55 and the linkage wheel 57 are coupled to each other so that they rotate synchronously along the circumferential direction. The holding seat 58 and the elastic piece 59 are directly matched with the linkage wheel 57 and then act on the guide wheel 55, so that the slide block 56 acts in the guide groove 551, and the processing design and the assembly of the components are facilitated.
The slider 56 has a separated state, a first engaged state and a second engaged state, when the driving wheel 52 is driven by the driving source 2 to rotate in the first direction, the slider 56 is firstly driven to protrude outwards along the guide groove 551, and when the first end of the slider 56 abuts against one side of the driving block 531, the slider 56 is switched to the first engaged state to drive the driven wheel 53 to rotate. When the driving wheel 52 is rotated in a second direction opposite to the first direction, the second end of the slider 56 is driven to protrude outward along the guide groove 551, and when the second end of the slider 56 abuts against the other side of the driving block 531, the slider 56 is switched to a second engagement state, and the driven wheel 53 is driven to rotate in a reverse direction. When the driving source 2 stops outputting, the driving wheel 52 stops rotating, and the elastic element 59 drives the linkage wheel 57, the guide wheel 55 and the driving wheel 52 to rotate relatively, so that the first end or the second end of the sliding block 56 protruding outwards retracts towards the guide groove 551, and the sliding block 56 returns to the separated state.
The guide groove 551 is provided in a direction perpendicular to the central axis 51; the guide groove 551 penetrates the guide wheel 55 such that both ends of the guide groove 551 are located on the outer circumferential surface of the guide wheel 55. Further, when the slide block 56 is in the first engagement state or the second engagement state, in order to make the transmission force between the slide block 56 and the driven wheel 53 more uniform and reduce the wear, the two guide grooves 551 are preferably disposed, and the two guide grooves 551 are symmetrically disposed relative to the central axis 51, and the two slide blocks 56 are also disposed and respectively disposed in the two guide grooves 551. Of course, the driving blocks 531 are also disposed in two and symmetrically disposed with respect to the central shaft 51.
The driving wheel 52 comprises a driving wheel disc 521 and a driving gear ring 522 which is arranged along the periphery of the driving wheel disc 521 and is matched with the worm 23. An accommodating cavity 523 for accommodating the guide wheel 55 is formed in the driving gear ring 522, and the driving gear ring 522 and the guide wheel 55 are arranged at intervals. A groove 561 is formed on one side, facing the driving wheel disc 521, of the sliding block 56; the driving wheel 521 is formed with a protrusion 524 extending into the groove 561, and the protrusion 524 is configured to rotate relatively in the groove 561, that is, the slider 56 can rotate angularly with the driving wheel 52 along the protrusion 524. Therefore, when the driving wheel 52 and the guiding wheel 55 rotate relatively, the protrusion 524 drives the sliding block 56 to move telescopically along the guiding groove 551.
In this embodiment, the slider 56 is disposed along the guide groove 551 in a bar shape as a whole, and the cross section of the slider 56 is rectangular. The groove 561 is formed with two abutting surfaces 562 oppositely arranged along the extending direction of the guide groove 551, the protrusion 524 is arranged in an arc plate shape relative to the central shaft 51, and two side edges of the protrusion 524 along the circumferential direction are arranged in an arc shape and respectively connected with the two abutting surfaces 562. Here, the abutting surface 562 is a plane, and both sides of the protrusion 524 in the radial direction are spaced from the inner wall surface of the guide groove 551. When the driving wheel 52 and the guide wheel 55 rotate relatively, the protrusion 524 drives the slider 56 to rotate around the central axis, and simultaneously, the abutting position between the side edge of the protrusion 524 and the abutting surface 562 changes, so that the slider 56 and the driving wheel 52 deflect angularly relative to the protrusion 524, that is, the slider 56 moves telescopically along the guide groove 551.
Further, the guide wheel 55 is formed with a stopper groove 552 communicating with the guide groove 551, and the projection 524 passes through the stopper groove 552 and projects into the groove 561 of the slider 56. The movable angle range of the projection 524 in the limiting groove 552 relative to the central shaft 51 is greater than or equal to the angle variation range of the slider 56 switched from the first engagement state to the second engagement state, so as to ensure that the slider 56 can be sufficiently abutted against the driving block 531 when switched to the first engagement state or the second engagement state, and the driven wheel 53 is driven to rotate. Wherein, when the sliding block 56 is in the separated state, the projection 524 is located at the middle position of the limiting groove 552. The two ends of the slider 56 form a first arc-shaped end surface 563 and a second arc-shaped end surface 564 respectively opposite to the central shaft 51, and when the slider 56 is in the separated state, the first arc-shaped end surface 563 and the second arc-shaped end surface 564 do not exceed the outer peripheral surface of the guide wheel 55, and the radii of the first arc-shaped end surface 563 and the second arc-shaped end surface 564 are preferably set to be slightly smaller than the radius of the outer peripheral surface of the guide wheel 55.
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 525 protruding from the driving wheel disc 521 toward one side of the interlocking wheel 57, the interlocking wheel 57 is formed with a second protruding plate 573, the first protruding plate 525 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 525 and the second protruding plate 573 are arranged to be arc-shaped plate-shaped. Here, the linking disc 571 is further formed with an opening 574 that is matched with the first boss 525, 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 525 rotating from one side of the opening 574 to the other side of the opening 574 is also set to be greater than or equal to an angle variation range of the slider 56 switching from the first engaging state to the second engaging state. Preferably, when the slider 56 is in the separated state, the first protruding plate 525 is located at a position just in the middle of the opening 574, and the angle change range of the slider 56 from the separated state to the first engaged state or the second engaged state is preferably set to 10 to 30 °.
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 526 extending into the matching groove 575 towards one side of the linkage wheel 57. When the sliding block 56 is in the engaged state, the first protruding plate 525 abuts against one side of the opening 574, and simultaneously, the matching protruding plate 526 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 527 is further 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 fitted with the central through hole 527 such that the driver 52 can rotate about the first engagement portion 5761. The shaft sleeve 576 further has a second matching portion 5762 connected to the guide wheel 55, the second matching portion 5762 is disposed in a hexagonal shape, and the guide wheel 55 is correspondingly disposed with the second matching portion 5762 and is a slot 553 in a hexagonal shape, so that the guide wheel 55 and the linkage wheel 57 rotate synchronously.
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 202 is pivotally mounted on the cabinet 201. Of course, the door 202 may be a pull-out door. The push rod 3 extends along 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; after the door body 202 is opened, the rotation direction of the bidirectional motor is switched to drive the push rod 3 to contract backwards, so that accidental impact is avoided.
In summary, with the clutch automatic door opener 100 and the refrigerator of the present invention, when the driving wheel 52 is turned on and rotates, the sliding block 56 is driven to switch to the first engaging state or the second engaging state, and then the guiding wheel 55 and the driven wheel 53 are driven to rotate together; when the driving wheel 52 stops rotating, the elastic member 59 drives the guide wheel 55 and the driving wheel 52 to rotate relatively, and the slider 56 returns to the separated state. This automatic door opener 100 of separation and reunion can realize through the flexible removal of slider 56 in guide way 551 the switching of the cooperation state between action wheel 52 and follow driving wheel 53 realizes opening the door automatically, and opens the back at the door body, returns the installation space of base 1 with push rod 3 through driving action wheel 52 reverse rotation in, and the structure is more durable reliable, prevents unexpected striking damage, uses more safely, improves user experience.
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 sliding block arranged between the driving wheel and the driven wheel, the driving wheel is connected to the output end of a driving source, and the driven wheel is used for driving the push rod to move;
the transmission assembly further comprises a guide wheel sleeved on the central shaft and an elastic piece acting on the guide wheel, a guide groove used for accommodating the sliding block is formed in the guide wheel, the guide groove and the central shaft are arranged in a staggered mode, the guide groove penetrates through the guide wheel, and two ends of the guide groove are located on the outer peripheral surface of the guide wheel;
the driven wheel is provided with a driving block which is positioned on the periphery of the guide wheel and is arranged at an interval with the guide wheel, the sliding block is provided with a separation state, a first joint state and a second joint state, when the driving wheel is started to rotate along a first direction, the sliding block is driven to protrude outwards along the guide groove, and when the first end of the sliding block is abutted against the driving block, the sliding block is switched to the first joint state so as to drive the driven wheel to rotate; when the driving wheel is started to rotate along a second direction opposite to the first direction, the sliding block is driven to protrude outwards along the guide groove, and when the second end of the sliding block abuts against the driving block, the sliding block is switched to a second joint state, so that the driven wheel is driven to rotate;
when the driving wheel stops rotating, the elastic piece drives the guide wheel and the driving wheel to rotate relatively, so that the first end and the second end of the sliding block are separated from the driving block, and the sliding block returns to a separation state.
2. The clutched automatic door opener of claim 1, wherein: the guide groove is arranged in a direction perpendicular to the central axis.
3. The clutched automatic door opener of claim 1, wherein: the guide grooves are two and two, the guide grooves are symmetrically arranged relative to the central shaft, and the sliding blocks are two and are respectively positioned in the two guide grooves.
4. The clutched automatic door opener of claim 1, wherein: the driving wheel comprises a driving wheel disc and a driving gear ring which is arranged along the periphery of the driving wheel disc and matched with the output end of the driving source, the driving gear ring and the guide wheel are arranged at intervals, and an accommodating cavity for accommodating the guide wheel is formed in the driving gear ring.
5. The clutched automatic door opener of claim 4, wherein: a groove is formed in one side, facing the driving wheel disc, of the sliding block; the driving wheel disc is provided with a lug which extends into the groove in a probing mode, and the lug can rotate in the groove relatively, so that when the guide wheel is static, the lug can drive the sliding block to move in a telescopic mode along the guide groove.
6. The clutched automatic door opener of claim 5, wherein: the groove is formed with two abutting surfaces which are oppositely arranged along the extending direction of the guide groove, and the convex block is arranged along the two side edges in the circumferential direction to be arc-shaped and respectively connected with the two abutting surfaces.
7. The clutched automatic door opener of claim 5, wherein: the guide wheel is also provided with a limit groove communicated to the guide groove, and the lug penetrates through the limit groove; the movable angle range of the lug relative to the central shaft in the limiting groove is larger than or equal to the angle change range of the slider changing from the first joint state to the second joint state.
8. The clutched automatic door opener of claim 1, wherein: the two ends of the sliding block are opposite to the central shaft to form a first arc-shaped end face and a second arc-shaped end face respectively, and when the sliding block is in a separation state, the first arc-shaped end face and the second arc-shaped end face do not exceed the outer peripheral face of the guide wheel.
9. The clutched automatic door opener of claim 1, wherein: the transmission assembly further comprises a transmission wheel arranged between the push rod and the driven 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 |
|---|---|---|---|
| CN201810837697.6A CN109708399B (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 |
|---|---|---|---|
| CN201810837697.6A CN109708399B (en) | 2018-07-26 | 2018-07-26 | Clutch automatic door opening device and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109708399A CN109708399A (en) | 2019-05-03 |
| CN109708399B true CN109708399B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810837697.6A Active CN109708399B (en) | 2018-07-26 | 2018-07-26 | Clutch automatic door opening device and refrigerator |
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| CN (1) | CN109708399B (en) |
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| 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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| 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 |
| CN207351056U (en) * | 2017-09-14 | 2018-05-11 | 合肥华凌股份有限公司 | Refrigerator |
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| CN109708399A (en) | 2019-05-03 |
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Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Haier Zhijia 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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