CN216380986U - Automatic opening and closing structure of door body - Google Patents
Automatic opening and closing structure of door body Download PDFInfo
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- CN216380986U CN216380986U CN202120126593.1U CN202120126593U CN216380986U CN 216380986 U CN216380986 U CN 216380986U CN 202120126593 U CN202120126593 U CN 202120126593U CN 216380986 U CN216380986 U CN 216380986U
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- gear
- worm
- arc
- toothed bar
- door opening
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Abstract
The utility model provides an automatic door opening and closing structure which comprises a first door opening and closing mechanism and a second door opening and closing mechanism, wherein the first door opening and closing mechanism is connected with a door body and a refrigerator body, and the second door opening and closing mechanism is arranged at the position of a hinge of the door body and the refrigerator body. The first door opening and closing mechanism comprises a clamping hook, a push rod, an arc toothed bar and a power mechanism, wherein one end of the push rod is hinged with the inner end of the clamping hook, the arc toothed bar is connected with the push rod in a relative motion mode, the power mechanism is connected with the arc toothed bar, and the arc toothed bar and the power mechanism are arranged in a supporting shell. The automatic door body opening and closing structure provided by the utility model solves the technical problem of how to realize the automatic door body opening and closing function, can allow a user to easily and manually open/close the drawer, greatly improves the user experience, and improves the automatic function of a product.
Description
Technical Field
The utility model relates to the technical field of mechanical structure transmission, can be widely applied to the field of intelligent home appliances such as refrigerators, dish washing machines, storage cabinets and the like, is particularly mainly used for driving a door body to move around a rotating shaft so as to realize electric opening/closing of the door body, and particularly relates to an automatic opening/closing structure of the door body.
Background
Along with the social development and the improvement of the living standard of people, the demand of people on the automation/intelligence degree of various household products is stronger and stronger, so that the household products with the functions of automatically opening/closing door bodies, automatically pushing/pulling back drawers and the like are gradually released in the market, and the application of the functions brings great convenience to the living aspect of people.
However, while the application of the new technology brings convenience to the life of people, due to the lack of comprehensive consideration in design, the existing automatic door opening system can only realize a simple automatic opening function, but cannot realize an automatic closing function, so that the automatic function of the product is greatly discounted. In addition, the existing automatic door opening device applied to the field on the market generally moves linearly, so that the matching contact point between the arc-shaped toothed bar and the door body is unstable, the stress angle is poor, and the door opening effect is poor. Therefore, there is a need for an improved door opening structure to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic door body opening and closing structure, which solves the technical problem of how to realize the automatic opening and closing function of a door body, can allow a user to easily and manually open/close a drawer, greatly improves the user experience, and improves the automatic function of a product.
The utility model provides an automatic opening and closing structure of door body, includes first switch door mechanism and second switch door mechanism, first switch door mechanism is connected with the door body and refrigerator box, second switch door mechanism sets up the door body with the hinge position of refrigerator box.
The first door opening and closing mechanism comprises a clamping hook, a push rod, an arc toothed bar and a power mechanism, wherein one end of the push rod is hinged with the inner end of the clamping hook, the arc toothed bar is connected with the push rod in a relatively movable mode, the power mechanism is connected with the arc toothed bar, and the arc toothed bar and the power mechanism are both arranged in a supporting shell;
a locking groove is formed in the lower portion of the outer end of the clamping hook, a locking block on the refrigerator body is movably clamped in the locking groove, two adjacent clamping grooves are formed in the upper end face of the push rod, a convex point is arranged on the arc-shaped toothed bar, and the convex point can move in the two clamping grooves in a switchable manner;
the clamping hook is connected with the push rod through a rotating shaft, and a torsion spring is arranged on the rotating shaft.
The arc-shaped toothed bar is arc-shaped, meshing teeth are arranged on the inner side of the arc-shaped toothed bar, and the meshing teeth are connected with the power mechanism;
the arc-shaped toothed bar is characterized in that an open slot is formed in the upper end face of the outer end of the arc-shaped toothed bar, a pressing rod is arranged in the open slot, one end of the pressing rod is connected to the inner end face of the open slot, the salient points are arranged below the other end of the pressing rod, and the pressing rod and the bottom face of the open slot are clamped by the pressing rod.
The power mechanism comprises a third-stage gear connected with the meshing teeth, a middle gear connected with the third-stage gear, and a helical gear coaxially connected with the middle gear, and the helical gear is connected with the worm gear mechanism.
The worm and gear mechanism comprises a first worm gear connected with the helical gear, a first worm connected with the first worm gear, and a first motor used for driving the first worm to rotate.
The locking block is arranged on the guide pillar in a vertically sliding mode, a spring is sleeved on the outer side of the guide pillar, and the top end of the spring is connected with the locking block.
The second door opening and closing mechanism comprises a shell, an output gear, a secondary gear connected with the output gear and a primary gear connected with the secondary gear, the primary gear is connected with the worm gear mechanism through a clutch device, the secondary gear is connected with the angle sensing unit, the second motor is further connected with the PCBA board, and an output shaft connected with the output gear is connected with the door body; the housing includes an upper shell and a lower shell.
The worm and gear mechanism comprises a second worm gear, a second worm connected with the second worm gear and a second motor used for driving the second worm to rotate, and two ends of the second worm are respectively hinged to the fixed block.
The utility model achieves the following remarkable effects:
(1) the device comprises a first door opening and closing mechanism, a first door opening and closing mechanism and a second door opening and closing mechanism, wherein the first door opening and closing mechanism is arranged in the opening and closing direction of a door body and can perform telescopic action to open/close the door body at a small angle;
the second door opening and closing mechanism is arranged at the position of the hinge and matched with the first door opening and closing mechanism to completely open the door body, and a clutch device is arranged in the second door opening and closing mechanism, so that the door body can be opened and closed easily without reverse thrust during power failure and manual operation;
the automatic door opening and closing device can enable the door body to be automatically opened/closed and manually open and close the door easily, and is simple in structure, few in parts, simple, convenient and stable in arrangement mode, not easy to damage and convenient and fast to operate;
(2) by adopting the door body of the transmission device, on the basis of having the automatic opening function of the traditional electric door body, a user can realize the automatic closing of the door body, and can easily and manually open/close the drawer, thereby greatly improving the user experience;
(2) the arc-shaped toothed bar is adopted in the scheme, when the door body is pushed open and closed, the movement direction is completely consistent with the rotation direction of the door body, the fixation of a stressed contact point is ensured, meanwhile, the stress is vertical to the door body, and larger opening force can be given to the door body under the condition that the motor outputs the same torque.
Drawings
Fig. 1 is a schematic structural diagram of an automatic door opening structure in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first door opening and closing mechanism in the embodiment of the present invention.
Fig. 3 is an exploded view of a first door opening and closing mechanism in the embodiment of the present invention.
Fig. 4 is a structural view of an arc-shaped rack bar in the embodiment of the present invention.
Fig. 5 is a diagram of the connection structure between the hook and the locking block in the embodiment of the utility model.
Fig. 6 is an external structural view of an automatic opening and closing door in the embodiment of the present invention.
Fig. 7 is a structural view of a second door opening and closing mechanism in the embodiment of the present invention.
Wherein the reference numerals are: 1. a refrigerator body; 2. a door body; 3. a locking block; 4. a first door opening and closing mechanism; 4-1, a first motor; 4-2, arc-shaped toothed bars; 4-21, a compression bar; 4-22, salient points; 4-3, a push rod; 4-4, torsion spring; 4-5, hook; 4-6, three-stage gear; 4-7, intermediate gear; 4-8, a first worm; 4-9, a bevel gear; 5. a second door opening and closing mechanism; 5-1, upper shell; 5-2, fixing blocks; 5-3, a clutch device; 5-4, a second worm; 5-5, a second motor; 5-6, PCBA; 5-7, a lower shell; 5-8, an angle sensing unit; 5-9, a secondary gear; 5-10, output gear; 5-11 and a first-stage gear.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is described below by way of specific embodiments.
Referring to fig. 1 and 6, the automatic door opening and closing structure comprises a first door opening and closing mechanism 4 and a second door opening and closing mechanism 5, wherein the first door opening and closing mechanism 4 is connected with a door body 2 and a refrigerator body 1, and the second door opening and closing mechanism 5 is arranged at the hinge position of the door body 2 and the refrigerator body 1.
Referring to fig. 2 and 3, the first door opening and closing mechanism 4 comprises a hook 4-5, a push rod 4-3 with one end hinged with the inner end of the hook 4-5, an arc-shaped toothed bar 4-2 connected with the push rod 4-3 in a relative motion manner, and a power mechanism connected with the arc-shaped toothed bar 4-2, wherein the arc-shaped toothed bar 4-2 and the power mechanism are both arranged in a supporting shell;
referring to 5, the lower part of the outer end of the hook 4-5 is provided with a locking groove, a locking block 3 on the refrigerator body 1 is movably clamped in the locking groove, the upper end surface of the push rod 4-3 is provided with two adjacent locking grooves, the arc-shaped toothed rod 4-2 is provided with a salient point, and the salient point can move in the two locking grooves in a switchable manner;
the hook 4-5 is connected with the push rod 4-3 through a rotating shaft, and the rotating shaft is provided with a torsion spring 4-4.
Referring to fig. 4, the arc-shaped toothed bar 4-2 is arc-shaped, and meshing teeth are arranged on the inner side and connected with a power mechanism;
an open slot is arranged on the upper end face of the outer end of the arc-shaped toothed bar 4-2, a pressure bar 4-21 is arranged in the open slot, one end of the pressure bar 4-21 is connected to the inner end face of the open slot, a salient point 4-22 is arranged below the other end of the pressure bar 4-21, and the push bar 4-3 is clamped between the pressure bar 4-21 and the bottom face of the open slot.
The power mechanism comprises a three-level gear 4-6 connected with meshing teeth, an intermediate gear 4-7 connected with the three-level gear 4-6, and a helical gear 4-9 coaxially connected with the intermediate gear 4-7, wherein the helical gear 4-9 is connected with a worm gear mechanism.
The worm and gear mechanism comprises a first worm gear connected with the bevel gear 4-9, a first worm 4-8 connected with the first worm gear, and a first motor 4-1 for driving the first worm 4-8 to rotate.
The locking piece 3 can be arranged on the guide pillar in a vertically sliding mode, a spring is sleeved on the outer side of the guide pillar, and the top end of the spring is connected with the locking piece 3.
Referring to fig. 7, the second door opening and closing mechanism 5 comprises a shell, an output gear 5-10, a secondary gear 5-9 connected with the output gear 5-10, and a primary gear 5-11 connected with the secondary gear 5-9, wherein the primary gear 5-11 is connected with a worm gear mechanism through a clutch device 5-3, the secondary gear 5-9 is connected with an angle sensing unit 5-8, a motor II 5-5 is further connected with a PCBA5-6 plate, and an output shaft connected with the output gear 5-10 is connected with the door body 2; the housing includes an upper case 5-1 and a lower case 5-7.
The worm and gear mechanism comprises a second worm gear, a second worm 5-4 connected with the second worm gear and a second motor 5-5 used for driving the second worm 5-4 to rotate, and two ends of the second worm 5-4 are respectively hinged to the fixing block 5-2.
The specific working process of the utility model is as follows:
the first door opening and closing mechanism 4 comprises a motor I4-1, a worm I4-8, a helical gear, an intermediate gear 4-7, a tertiary gear 4-6, an arc-shaped toothed bar 4-2, a clamping hook 4-5 at the front end of the arc-shaped toothed bar 4-2 and a locking block 3 matched with the door body 2;
when the door is opened, the motor drives the first worm 4-8, the first worm 4-8 drives the first worm wheel to rotate, the first worm wheel drives the first bevel gear 4-9 to rotate, the first bevel gear 4-9 drives the arc-shaped toothed bar 4-2 to push out through transmission with the middle gear 4-7 and the third-stage gear 4-6, the arc-shaped toothed bar 4-2 pushes out by taking the rotating shaft of the door body 2 as a circle center, and the hook 4-5 at the front end of the arc-shaped toothed bar 4-2 easily slides into the back-off part of the lock catch of the door body 2, namely the lock block 3 is clamped with the hook 4-5;
because the door body 2 is connected with the refrigerator body 1 through the soft magnetic strip, when the suction force of the door body 2 causes the hook 4-5 to bear resistance, the push rod 4-3 can retract inwards, and simultaneously drives the hook 4-5 to be lifted higher than the height of the locking block 3, after the stroke of retraction, the arc-shaped toothed bar 4-2 pushes the door body 2, the suction force of the door body 2 is overcome, and the door body 2 is pushed out;
then the arc-shaped toothed bar 4-2 is retracted, when the arc-shaped toothed bar is retracted to the outlet position of the device, the clamping hook 4-5 is lifted in the pushing process and can be subjected to the resistance of the shell, the push rod 4-3 retracted in the pushing process can be pulled out again through the resistance, the clamping hook 4-5 falls and is retracted into the shell, and when the arc-shaped toothed bar is pushed away by a small angle, the second door opening mechanism starts to work to drive the door body 2 to be completely opened;
when the door is closed, the second door opening and closing mechanism 5 drives the door body 2 to be closed to a certain angle, the arc-shaped toothed bar 4-2 begins to extend out and is inserted into the locking block 3, the second door opening and closing mechanism 5 is disconnected, the arc-shaped toothed bar 4-2 of the first door opening and closing mechanism 4 retracts to close the door body 2, meanwhile, the arc-shaped toothed bar 4-2 continues to move to pull the clamping hook 4-5 and the locking block 3 open, the clamping hook 4-5 is separated from the locking block 3 and retracts into the shell, and the initial tool state is returned.
Technical features that are not described in the present solution may be implemented by or using the prior art, and are not described herein again, of course, the above description is not a limitation on the present solution, and the present solution is not limited to the above examples, and changes, modifications, additions or substitutions that are made by a person having ordinary skill in the art within the scope of the present solution also belong to the protection scope of the present solution.
Claims (8)
1. The utility model provides an automatic opening and closing structure of door body which characterized in that, includes first switch door mechanism and second switch door mechanism, first switch door mechanism is connected with the door body and refrigerator box, second switch door mechanism sets up the door body with the hinge position of refrigerator box.
2. The automatic door opening and closing structure according to claim 1, wherein the first door opening and closing mechanism comprises a hook, a push rod with one end hinged to the inner end of the hook, an arc-shaped toothed bar connected with the push rod in a relatively movable manner, and a power mechanism connected with the arc-shaped toothed bar, and the arc-shaped toothed bar and the power mechanism are both arranged in a support shell;
a locking groove is formed in the lower portion of the outer end of the clamping hook, a locking block on the refrigerator body is movably clamped in the locking groove, two adjacent clamping grooves are formed in the upper end face of the push rod, a convex point is arranged on the arc-shaped toothed bar, and the convex point can move in the two clamping grooves in a switchable manner;
the clamping hook is connected with the push rod through a rotating shaft, and a torsion spring is arranged on the rotating shaft.
3. The automatic door body opening and closing structure according to claim 2, wherein the arc-shaped toothed bar is arc-shaped, meshing teeth are arranged on the inner side of the arc-shaped toothed bar, and the meshing teeth are connected with the power mechanism;
the arc-shaped toothed bar is characterized in that an open slot is formed in the upper end face of the outer end of the arc-shaped toothed bar, a pressing rod is arranged in the open slot, one end of the pressing rod is connected to the inner end face of the open slot, the salient points are arranged below the other end of the pressing rod, and the pressing rod and the bottom face of the open slot are clamped by the pressing rod.
4. The automatic door opening and closing structure according to claim 3, wherein the power mechanism comprises a third gear connected with the meshing teeth, a middle gear connected with the third gear, and a helical gear coaxially connected with the middle gear, and the helical gear is connected with a worm gear mechanism.
5. The automatic door opening and closing structure according to claim 4, wherein the worm gear mechanism comprises a first worm gear connected with the helical gear, a first worm connected with the worm gear, and a first motor for driving the first worm to rotate.
6. The automatic door opening and closing structure according to claim 5, wherein the locking piece is slidably disposed on a guide post, a spring is sleeved outside the guide post, and a top end of the spring is connected to the locking piece.
7. The automatic door opening and closing structure according to claim 6, wherein the second door opening and closing mechanism comprises a shell, an output gear, a secondary gear connected with the output gear, and a primary gear connected with the secondary gear, the primary gear is connected with a worm gear mechanism through a clutch device, the secondary gear is connected with an angle sensing unit, a second motor is further connected with a PCBA plate, and an output shaft connected with the output gear is connected with the door; the housing includes an upper shell and a lower shell.
8. The automatic door body opening and closing structure according to claim 7, wherein the worm and gear mechanism comprises a second worm gear, a second worm connected with the second worm gear, and a second motor for driving the second worm to rotate, and two ends of the second worm are respectively hinged to a fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126593.1U CN216380986U (en) | 2021-01-18 | 2021-01-18 | Automatic opening and closing structure of door body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126593.1U CN216380986U (en) | 2021-01-18 | 2021-01-18 | Automatic opening and closing structure of door body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216380986U true CN216380986U (en) | 2022-04-26 |
Family
ID=81217070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120126593.1U Active CN216380986U (en) | 2021-01-18 | 2021-01-18 | Automatic opening and closing structure of door body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216380986U (en) |
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2021
- 2021-01-18 CN CN202120126593.1U patent/CN216380986U/en active Active
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