CN218324468U - Door opening and closing device and electrical equipment - Google Patents

Abstract

The application discloses switching door device and electrical equipment belongs to electrical equipment technical field to solve the technical problem of present electrical equipment difficulty of opening the door. The door opening and closing device includes: the driving mechanism is arranged on the base; the linkage gear is arranged on the base and is in transmission connection with the driving mechanism, and the linkage gear is provided with a butting part; the top door piece is movably arranged on the base; under the condition that the driving mechanism drives the linkage gear to rotate, the abutting portion can rotate along with the linkage gear to push the top door piece to move relative to the base, so that the top door piece jacks the door body. The supporting part can push the door pushing piece to move relative to the main body under the condition of rotation of the linkage gear, so that the door body is pushed open, the door body can be directly pushed open under the action of the supporting part and the door pushing piece on the linkage gear, namely, the linkage gear can be driven to rotate through a driving mechanism, so that the door pushing piece can reduce the number of parts of the whole door opening and closing device, and the integration level of the whole door opening and closing device is improved.

Description

Door opening and closing device and electrical equipment

Technical Field

The application belongs to the technical field of electrical equipment, especially relates to a switch door gear and electrical equipment.

Background

Along with the improvement of living standard, electrical equipment such as refrigerators, dish washing machines, disinfection cabinets and the like are widely extended into the lives of people. In order to maintain the sealing performance of the electrical equipment, an adsorption structure is generally provided between the cabinet and the door or internal and external negative pressures are maintained, and the door is stably fixed to the cabinet. Although the related performance of electrical equipment is improved, the difficulty of opening the door body is also improved to a certain extent, the door body can be pulled open by large force, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

This application aims at solving electrical equipment to a certain extent at least and opens the technical problem of the difficulty. Therefore, the application provides a door opening and closing device and electrical equipment.

In a first aspect, an embodiment of the present application provides a door opening and closing device for opening a door body provided on a main body, the door opening and closing device includes:

a base seat is arranged on the base seat,

the driving mechanism is arranged on the base;

the linkage gear is arranged on the base and is in transmission connection with the driving mechanism, and the linkage gear is provided with a butting part;

a top door member movably disposed on the base;

under the condition that the driving mechanism drives the linkage gear to rotate, the abutting portion can rotate along with the linkage gear to push the top door piece to move relative to the base, so that the top door piece jacks the door body.

Because the door body closes in order to improve the sealed effect between the two when the main part, can generally be with great pressure with the door body pressfitting in the main part, or adsorb the door body on the main part through adsorption structure, have great adsorption affinity between door body and the main part, need break away from the absorption with great effort between door body and the main part when opening the door body. Set up on the linkage gear and support the portion of holding, under linkage gear pivoted condition, through setting up the direct and overhead door spare effect of the portion of holding on the linkage gear, promote overhead door spare by supporting the portion of holding and remove for the main part, thereby with the door body top-open, drive linkage gear through a actuating mechanism promptly and rotate, so that overhead door spare breaks through the resistance overhead door body that opens the door, can conveniently promote the efficiency of opening the door and reduce the spare part quantity of whole switch door gear, improve the integrated level of whole switch door gear, reduce overall structure scale.

In an optional embodiment of the present application, the abutting portion has a top door surface, and under the condition that the abutting portion rotates along with the linkage gear, the top door surface abuts against the top door piece, so that the top door piece can be pushed to move relative to the base, and the top door piece abuts against the door body.

The top door face can be arranged on one side of the abutting portion, the abutting portion abuts against the top door piece in the process of rotating along with the linkage gear, the top door piece moves towards the direction close to the door body, the top door piece gradually extends out of the door body, and along with the rotation of the linkage gear, the portion, extending out of the main body, of the top door piece is more and more, so that the door body is gradually jacked.

In an alternative embodiment of the present application, the top door face gradually extends away from the center of rotation of the linked gear.

The top door face can be understood as being obliquely arranged, when the door body is closed on the main body, the top door piece is arranged at the joint of the top door face and the linkage gear, and the top door face is convexly arranged and obliquely arranged towards the direction far away from the rotation center of the linkage gear, so that when the linkage gear rotates under the driving of the driving mechanism, the top door face can be abutted against the top door piece to move towards the direction close to the door body, and the top door piece gradually extends out of the main body, thereby jacking the door body.

In an optional embodiment of the present application, the door opening and closing device further includes a hovering mechanism, the linked gear has a fixing groove, the fixing groove can rotate to cooperate with the hovering mechanism, so that the linked gear hovers, and the top door surface is disposed on one side wall of the fixing groove.

In an optional embodiment of the application, the supporting part further comprises an avoiding surface, the avoiding surface is connected with the top door surface, and the top door part can reset along with the avoiding surface after the top door part and the top door surface are separated from supporting.

In the direction of linkage gear corotation, the top door face sets up in the place ahead of dodging the face, that is to say, at linkage gear pivoted in-process, the contact of top door face and top door spare first, and the top is supported a door spare and is moved to the direction that is close to the door body, and after top door spare and top door face come off to support and hold, top door spare and dodge a face contact, make top door spare can be to the direction motion of keeping away from the door body, after a door body is opened in top door spare top, can retrieve in the main part, make things convenient for follow-up to close the door.

In an optional embodiment of the present application, the top door surface and the avoiding surface are connected to a connection point, and a distance between the connection point and a rotation center of the linkage gear is greater than a distance between any point on the avoiding surface and the top surface and the rotation center of the linkage gear.

The top door face and the avoiding face are connected with each other, the point of the mutual connection between the top door face and the avoiding face can be defined as a connecting point, the connecting point is the point which is farthest away from the rotating center of the linkage gear on the top door face and the avoiding face, under the condition that the connecting point and the top door piece are abutted, the top door piece is farthest away from the angle of jacking the door body, after the avoiding face rotates the top door piece, the avoiding face provides a space for the top door piece to move in the direction far away from the door body, the top door piece can be retracted to the main body, and the subsequent door closing is facilitated.

In an optional embodiment of this application, the switch door device further includes a hovering mechanism, the linkage gear has a fixing groove, the fixing groove can rotate to cooperate with the hovering mechanism, so that the linkage gear hovers, the top door surface is arranged on one side wall of the fixing groove, and the avoiding surface is arranged outside the fixing groove.

The fixed slot sets up on the linkage gear, and under the condition of the door body is closed in the main part, the one end that the overhead door spare is close to the linkage gear can the holding in the fixed slot, and linkage gear pivoted in-process, overhead door spare earlier with overhead door face support relatively and hold, make overhead door spare can be to the direction motion of being close to the door body, the fixed slot rotates to the mechanism department of hovering, mechanism card that hovers goes into to the fixed slot in, can make linkage gear stall to the stop opening the door.

In the optional embodiment of this application, the door opening and closing device still includes the elastic component, the elastic component connect in the base with between the top door spare, top door spare with under the condition that the top door face breaks away from the complex, the elastic component can drive top door spare resets.

The top door piece is pushed to the outside of the main body at the top door face, when the avoiding face rotates to the rear side of the top door piece, the top door piece cannot automatically return, the avoiding face cannot be automatically followed to be recovered to the main body, the elastic piece can be arranged on the base and the top door piece, and the top door piece is recovered to the main body through the restoring force of the elastic piece.

In an alternative embodiment of the present application, the elastic member is one of a spring and a torsion spring.

In an optional embodiment of the present application, a mounting groove is provided on the base, and the top door is movably disposed in the mounting eraser.

The mounting groove is rectangular form, and the setting of top door spare can remove along the extending direction of mounting groove in the mounting groove, makes top door spare can be to the direction motion of being close to or keeping away from the door body.

In an optional embodiment of the present application, the abutting portion and the linkage gear are integrally formed. The two integrated into one piece is equivalent to the direct and top door spare effect of linkage gear, can reduce the setting of other spare parts, reduces the structure of door gear opening and closing to reduce occupation space.

In a second aspect, the embodiment of the application provides an electrical equipment, including the door body, main part and the first aspect provide the door opening and closing device, the door body with the main part is rotated and is connected, the door opening and closing device is installed in the main part, in order to open the door body.

The advantageous effects of the electrical apparatus provided by the second aspect are the same as the advantageous effects of the door opening and closing device provided by the first aspect, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 shows a structural schematic diagram of closing a door body of an electrical apparatus provided in an embodiment of the present application.

Fig. 2 is a schematic structural diagram illustrating a door opening structure of an electrical apparatus according to an embodiment of the present application.

Fig. 3 shows a partial enlarged view of an electrical apparatus provided in an embodiment of the present application at II in fig. 1.

Fig. 4 shows a schematic structural diagram of a linkage gear of a door opening and closing device provided in an embodiment of the present application.

Fig. 5 shows a schematic structural diagram of a fixing groove of a linkage gear of a door opening and closing device rotating to the middle of a top door piece and a hovering mechanism provided by an embodiment of the application.

Fig. 6 shows a schematic structural diagram that a fixing groove of a linkage gear of a door opening and closing device provided by an embodiment of the application rotates to be matched with a hovering mechanism.

Fig. 7 shows a schematic structural diagram of a second viewing angle of an electrical apparatus provided in an embodiment of the present application.

Reference numerals: 10-electrical equipment, 11-door opening and closing device, 12-main body, 13-door body, 100-driving mechanism, 300-linkage gear, 310-abutting part, 312-top door surface, 314-avoiding surface, 316-connecting point, 318-fixing groove, 400-revolving door mechanism, 500-top door piece, 510-elastic piece, 600-hovering mechanism, 910-base and 912-mounting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, descriptions in the present application as to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Along with the improvement of living standard, electrical equipment such as refrigerators, dish washing machines, disinfection cabinets and the like are widely extended into the lives of people. In order to maintain the sealing performance of the electrical equipment, an adsorption structure is generally disposed between the box and the door or internal and external negative pressures are maintained to form door opening resistance, so that the door is stably fixed to the box. Although the related performance of electrical equipment is improved, the difficulty of opening the door body is also improved to a certain extent, the door body can be pulled open by large force, and the use is inconvenient. In order to facilitate the opening of the door, a door-pushing mechanism is usually arranged on the door opening and closing device to break through the resistance of the opening of the door, reduce the difficulty of automatic opening of the door and improve the convenience of opening the door; under the condition that has increased a door mechanism and matched with drive structure, the spare part that leads to whole switch door gear also correspondingly increases, the switch door gear that this application embodiment provided can improve above-mentioned problem, and the switch door gear that this application was implemented and is provided can push up the door through same drive structure drive a door mechanism, can reduce the spare part quantity of whole switch door gear, improves the integrated level of whole switch door gear to reduce the degree of difficulty of opening the door to a certain extent.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

referring to fig. 1 and fig. 2, the embodiment of the present application provides a door opening and closing device 11, and the door opening and closing device 11 provided in the embodiment of the present application can drive a door propping mechanism to prop a door through a same driving structure, so that the number of components of the whole door opening and closing device 11 can be reduced, and the integration level of the whole door opening and closing device 11 can be improved.

The door opening and closing device 11 provided by the embodiment of the application is mainly applied to electrical equipment 10 and used for automatically opening or closing the door body 13, and the door opening and closing device 11 can automatically open the door body 13 after receiving a door opening signal. The door opening signal may be triggered by the user, or may be triggered by the electrical apparatus 10 itself. Similarly, the door opening and closing device may automatically close the door 13 after receiving a door closing signal, where the door closing signal may be triggered by a user or triggered by the electrical apparatus 10 itself.

In the embodiment of the present application, the door opening and closing device 11 includes: the door lifting device comprises a base 910, a driving mechanism 100, a linkage gear 300 and a top door 500, wherein the driving mechanism 100 is arranged on the base 910; the linkage gear 300 is installed on the base 910 and is in transmission connection with the driving mechanism 100, and the linkage gear 300 is provided with a butting part 310; the top door 500 is movably disposed on the base 910; under the condition that the driving mechanism 100 drives the linkage gear 300 to rotate, the abutting portion 310 can push the top door 500 to move relative to the base 910 along with the rotation of the linkage gear 300, so that the top door 500 abuts against the door 13.

In the embodiment of the present application, in order to improve the sealing effect between the door 13 and the main body 12 when the door 13 is closed on the main body 12, the door 13 is usually pressed on the main body 12 with a relatively large pressure, or the door 13 is adsorbed on the main body 12 through an adsorption structure, so that a relatively large adsorption force exists between the door 13 and the main body 12, and when the door 13 is opened, the door 13 and the main body 12 need to be separated from each other by a relatively large action force. The abutting part 310 is arranged on the linkage gear 300, under the condition that the linkage gear 300 rotates, the abutting part 310 can push the top door piece 500 to move relative to the main body 12, so that the door body 13 is jacked open, the abutting part 310 arranged on the linkage gear 300 directly acts with the top door piece 500, the door body 13 can be jacked open directly, namely, the linkage gear 300 can be driven to rotate through one driving mechanism 100, so that the top door piece 500 jacks the door body 13, the number of parts of the whole door opening and closing device 11 can be reduced, and the integration level of the whole door opening and closing device 11 is improved.

Under the condition that the linkage gear 300 rotates, the top door 500 cannot rotate along with the linkage gear 300, and the top door 500 can move in the direction close to or far away from the door 13 under the action of the abutting part 310, so as to open the door 13. The top door 500 can be attached to the outer surface of the supporting portion 310, and during the rotation of the linking gear 300, the top door 500 moves in the shape of the outer surface of the supporting portion 310 and moves in the direction close to or away from the door 13 to push open the door 13.

That is to say, in the embodiment of the present application, there is no direct connection relationship between the top door 500 and the abutting portion 310, the top door 500 may contact with the abutting portion 310 or may not contact with the abutting portion 310, when the driving mechanism 100 drives the linkage gear 300 to rotate, the top door 500 may abut against the abutting portion 310, and the abutting portion 310 pushes the top door 500 to move toward the direction close to the door 13, so as to open the door 13.

In other words, in the embodiment of the present application, the holding portion 310 rotates along with the linkage gear 300, and the top door 500 moves linearly.

For convenience of description, it is defined that the linking gear 300 can make the door 13 rotate in the forward direction, and if the door opening and closing device 11 receives a door opening signal, the driving mechanism 100 drives the linking gear 300 to rotate in the forward direction, and the door rotating mechanism 400 can follow the linking gear 300 to rotate in the forward direction, so as to open the door 13. If the door opening and closing device 11 receives a door closing signal, the driving mechanism 100 drives the linkage gear 300 to rotate reversely, and the door rotating mechanism 400 can rotate reversely along with the linkage gear 300, so as to close the door 13.

Referring to fig. 3 and 4, in some embodiments, the supporting portion 310 has a top door surface 312, and under the condition that the supporting portion 310 rotates along with the linking gear 300, the top door surface 312 supports against the top door 500, so as to push the top door 500 to move relative to the base 910, so that the top door 500 supports against the door 13.

The top door surface 312 can be arranged on one side of the abutting portion 310, in the process that the abutting portion 310 rotates along with the linkage gear 300, the top door surface 312 abuts against the top door piece 500, the top door piece 500 moves towards the direction close to the door body 13, the top door piece 500 gradually extends out of the door body 13, and along with the rotation of the linkage gear 300, the part of the top door piece 500 extending out of the main body 12 is more and more, so that the door body 13 is gradually pushed open.

In some embodiments, the abutting portion 310 is convexly disposed on the linkage gear 300, so that distances from the top door surface 312 to centers of the linkage gear 300 are different, and due to the different distances from the top door surface 312 to the rotation center of the linkage gear 300, in the process of rotating the linkage gear 300, the top door surface 312 moves toward the direction close to the door body 13 to abut against the top door piece 500, so that the top door piece 500 gradually pushes the door body 13.

In some embodiments, the top door face 312 gradually extends away from the center of rotation of the linked gear 300.

It can be understood that the top door surface 312 is obliquely disposed, when the door body 13 is closed on the main body 12, the top door 500 is disposed at a connection portion of the top door surface 312 and the linking gear 300, because the top door surface 312 is convexly disposed and obliquely disposed in a direction away from a rotation center of the linking gear 300, when the linking gear 300 is driven by the driving mechanism 100 to rotate, the top door surface 312 will abut against the top door 500 to move in a direction close to the door body 13, so that the top door 500 gradually extends out of the main body 12, thereby ejecting the door body 13.

It is easily understood that the angle at which the top door 500 is pushed away from the door body 13 is related to the distance between the top door surface 312 and the rotation center of the interlocking gear 300, and the point on the top door surface 312 having the farthest rotation center of the interlocking gear 300 is defined as the connection point 316 for convenience of description. The farther the distance between the connection point 316 and the rotation center of the interlocking gear 300 is, the longer the top door 500 is extended, and the larger the opening angle of the door 13 is.

In some embodiments, the angle at which the top door 500 can push the door 13 is 3 degrees to 5 degrees, and the specific angle is flexibly set at an angle required for breaking the door opening resistance of the door 13.

In the process that the top door surface 312 abuts against the door body 13, the door body 13 may be already pushed open at the middle position of the top door surface 312, and in the process of continuing to rotate, the door body 13 can be opened at a smaller angle, so that the door body 13 can be conveniently and continuously opened by the door rotating mechanism 400.

In some embodiments, the abutting portion 310 further comprises an avoiding surface 314, the avoiding surface 314 is connected with the top door surface 312, and the top door 500 can be reset along with the avoiding surface 314 after the top door 500 is disengaged from the top door surface 312.

In the positive rotation direction of the linkage gear 300, the top door surface 312 is arranged in front of the avoiding surface 314, that is, in the rotation process of the linkage gear 300, the top door surface 312 contacts with the top door piece 500, the top abutting door piece 500 moves towards the direction close to the door body 13, after the top door piece 500 is separated from the top door surface 312 and abutted, the top door piece 500 contacts with the avoiding surface 314, so that the top door piece 500 can move towards the direction far away from the door body 13, and after the top door piece 500 abuts against the door body 13, the top door piece 500 can be retracted to the main body 12, thereby facilitating the subsequent door closing.

It can be easily understood that, if the avoiding surface 314 is not arranged on the linkage gear 300, after the top door piece 500 backs up the door body 13, the top door piece 500 always extends out of the door body 13, when the door body 13 needs to be closed, the top door piece 500 is located outside the main body 12, and can interfere with the door body 13, so that the door body 13 cannot be closed, therefore, the main purpose of arranging the avoiding surface 314 is to enable the top door piece 500 to back up the door body 13, provide a space for the top door piece 500 to be recycled to the main body 12, enable the top door piece 500 to be retracted to the main body 12 after the door body 13 is backed up, and avoid the door body 13 from being unable to be retracted.

Certainly, after the top door surface 312 pushes the top door 500 to the outside of the main body 12, when the avoiding surface 314 rotates to the rear of the top door 500, the top door 500 cannot return automatically and cannot be automatically recovered to the main body 12 following the avoiding surface 314, the elastic member 510 may be disposed on the base 910 and the top door 500, and the top door 500 may be recovered to the main body 12 by the restoring force of the elastic member 510.

That is, in the process that the top door surface 312 abuts against the top door piece 500, the elastic piece 510 deforms gradually, when the connection point 316 contacts with the top door piece 500, the deformation of the elastic piece 510 reaches the maximum, in the process that the driving mechanism 100 drives the linkage gear 300 to continue rotating, the top door piece 500 is separated from the top door surface 312 and abuts against, after the separation and the abutment, the avoiding surface 314 provides a space for the top door piece 500 to be recycled to the main body 12, and under the action of the restoring force of the elastic piece 510, the top door piece 500 moves towards the direction far away from the door body 13, so that the whole top door piece 500 can be recycled to the main body 12, and the door body 13 is convenient to close.

In some embodiments, the elastic member 510 may be a spring, or a torsion spring, either of which may be used.

Under the condition that the elastic member 510 is a spring, one end of the spring is connected to the top door 500, and the other end of the spring can be fixed to the base 910 and can be fixed to a connecting shaft of the linkage gear 300, wherein the rotating shaft is fixedly connected to the base 910. That is, a section of the spring remote from the top door 500 needs to be connected to a fixed structure.

If the elastic member 510 is a spring, the spring is gradually stretched in the process that the top door surface 312 abuts against the top door member 500, when the connection point 316 contacts with the top door member 500, the stretching amount of the spring reaches the maximum, in the process that the driving mechanism 100 drives the linkage gear 300 to continue rotating, the top door member 500 is separated from the top door surface 312 to abut against, and after the separation, the avoiding surface 314 provides a space for the top door member 500 to be recycled to the main body 12, and under the action of the restoring force of the spring, the top door member 500 moves towards the direction away from the door body 13, so that the whole top door member 500 can be recycled to the main body 12, and the door body 13 can be conveniently closed.

When the spring is the torsion spring, the middle part of the torsion spring and the first end of the torsion spring are arranged on the base 910, the second end of the torsion spring is connected with the top door 500, wherein the middle part is respectively connected with the first end and the second end, and when the top door 500 jacks the door body 13, the torsion force of the torsion spring is required to be overcome by the top door 500.

If the elastic member 510 is a torsion spring, the torsion spring is twisted under the condition that the top door surface 312 abuts against the top door member 500 to move in the direction close to the door body 13, and when the top door member 500 and the top door surface 312 are separated from abutting, the top door member 500 can move in the direction away from the door body 13 along with the avoiding surface 314 under the action of the restoring force of the torsion spring, so that the top door member 500 can reset, the interference between the top door member 500 and the door body 13 is avoided, and the door can be closed conveniently.

In some embodiments, the top door surface 312 and the escape surface 314 are connected at a connection point 316, and the connection point 316 is spaced from the center of rotation of the linkage gear 300 by a distance greater than the distance from the escape surface 314 and any point on the top surface to the center of rotation of the linkage gear 300.

The top door surface 312 and the avoidance surface 314 are connected with each other, a point which can define the connection between the top door surface 312 and the avoidance surface 314 is a connection point 316, the connection point 316 is a point which is farthest away from a rotation center of the linkage gear 300 on the top door surface 312 and the avoidance surface 314, under the condition that the connection point 316 and the top door piece 500 are abutted, the top door piece 500 has the farthest ejecting angle with respect to the door body 13, after the avoidance surface 314 rotates the top door piece 500, the avoidance surface 314 provides the space for the top door piece 500 to move in the direction away from the door body 13, so that the top door piece 500 can be retracted onto the main body 12, and subsequent door closing is facilitated.

It is easy to understand that, in the process that the top door face 312 abuts against the top door of the top door piece 500, the door body 13 is gradually opened, the top door piece 500 does not open the door body 13 until the connection point 316 contacts with the top door piece 500, and in the process that the top door face 312 rotates along with the linkage gear 300, it may be that when one of the points on the top door face 312 abuts against the top door piece 500, the top door piece 500 abuts against the door body 13, and only when the connection point 316 abuts against the top door piece 500, the opening degree of the door body 13 in the top door stage reaches the maximum angle.

As for the speed at which the top door 500 pushes the door, in relation to the rotational speed at which the driving mechanism 100 drives the interlocking gear 300, the faster the interlocking gear 300 rotates, the faster the top door 500 pushes the door body 13. The slower the rotation speed of the link gear 300 is, the slower the speed of the door 500 for pushing the door 13 is.

In some embodiments, the escape surface 314 and the top door surface 312 may be curved surfaces or may be obliquely disposed planes.

Referring to fig. 5 and 6, in some embodiments, the door opening and closing apparatus 11 further includes a hovering mechanism 600, the linking gear 300 has a fixing groove 318, the fixing groove 318 can rotate to cooperate with the hovering mechanism 600, so that the linking gear 300 hovers, the top door surface 312 is disposed on one side wall of the fixing groove 318, and the avoiding surface 314 is disposed outside the fixing groove 318.

The fixing groove 318 is arranged on the linkage gear 300, under the condition that the door body 13 is closed on the main body 12, one end, close to the linkage gear 300, of the top door piece 500 can be contained in the fixing groove 318, in the rotating process of the linkage gear 300, the top door piece 500 is firstly abutted against the top door face 312, the top door piece 500 can move towards the direction close to the door body 13, the fixing groove 318 rotates to the hovering mechanism 600, the hovering mechanism 600 is clamped into the fixing groove 318, the linkage gear 300 can stop rotating, and therefore the door is stopped to be opened.

It should be noted that, in some embodiments, the door opening and closing device 11 further includes a door rotating mechanism 400, one end of the door rotating mechanism 400 is connected to the linkage gear 300, and the other end is connected to the door body 13, and the same driving mechanism 100 and the linkage gear 300 can drive the top door 500 and the door rotating mechanism 400 to achieve the functions of opening and closing the door; specifically, the door 13 is pushed to a smaller angle by the door pushing member 500, and the door 13 is further opened by the door rotating mechanism 400.

In the process of the rotation of the linking gear 300, the hovering mechanism 600 is snapped into the fixing groove 318, so that the linking gear 300 stops rotating, the door 13 cannot be further opened by the rotating door mechanism 400, and the door 13 can stop rotating relative to the main body 12.

In this embodiment, the base 910 is provided with an installation groove 912, and the top door 500 is movably disposed in the installation groove 912. The mounting groove 912 is long, and the top door 500 is disposed in the mounting groove 912 and can move along the extending direction of the mounting groove 912, so that the top door 500 can move toward or away from the door 13.

The extending direction of the mounting groove 912 may be along the door 13 by the interlocking gear 300, and the mounting groove 912 may be perpendicular to the door 13 when the door 13 is closed in order to reduce the loss of the door pushing force when the door pushing member 500 pushes the door.

In some embodiments, the abutment 310 and the linkage gear 300 are integrally formed. The two are integrally formed, which is equivalent to the direct action of the linking gear 300 and the top door piece 500, and can reduce the arrangement of other parts and reduce the structure of the door opening and closing device 11, so as to reduce the occupied space.

In addition, the linkage gear 300 is driven by the driving mechanism 100 to rotate, the rotation can be converted into the movement of the top door piece 500 through the arrangement of the abutting part 310, the top door before the door is opened can be realized through the linkage gear 300, the application range of the linkage gear 300 is improved, the driving structure of the top door piece 500 is reduced, the structure of the door opening and closing device 11 is reduced, and the occupied space is reduced.

To sum up, in the door opening and closing device 11 provided in the embodiment of the present application, in order to improve the sealing effect between the door 13 and the main body 12 when the door 13 is closed on the main body 12, the door 13 is usually pressed on the main body 12 with a large pressure, or the door 13 is adsorbed on the main body 12 through an adsorption structure, a large adsorption force exists between the door 13 and the main body 12, and the door 13 and the main body 12 need to be separated from each other by a large acting force when the door 13 is opened. The abutting portion 310 is arranged on the linkage gear 300, and under the condition that the linkage gear 300 rotates, the abutting portion 310 can push the top door piece 500 to move relative to the main body 12, so that the door body 13 is pushed open, the abutting portion 310 arranged on the linkage gear 300 directly acts with the top door piece 500, so that the door body 13 can be directly pushed open, namely, the linkage gear 300 can be driven to rotate by one driving mechanism 100, so that the top door piece 500 pushes open the door body 13, the number of parts of the whole door opening and closing device 11 can be reduced, and the integration level of the whole door opening and closing device 11 is improved.

Referring to fig. 7, a further embodiment of the present application provides an electrical apparatus 10, which includes a door 13, a main body 12, and the door opening and closing device 11, wherein the door 13 is rotatably connected to the main body 12, the door opening and closing device 11 is mounted on the main body 12, and the front connecting rod 410 is connected to the door 13.

The electrical appliance 10 may be a refrigerator, a dishwasher, a disinfection cabinet, or other household appliance.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Claims (12)

1. The utility model provides an open and close door gear for open the door body that sets up in the main part, its characterized in that, open and close door gear includes:

a base seat is arranged on the base seat,

the driving mechanism is arranged on the base;

the linkage gear is arranged on the base and is in transmission connection with the driving mechanism, and the linkage gear is provided with a butting part;

a top door member movably disposed on the base;

under the condition that the driving mechanism drives the linkage gear to rotate, the abutting portion can rotate along with the linkage gear to push the top door piece to move relative to the base, so that the top door piece jacks the door body.

2. The door opening and closing device according to claim 1, wherein the abutting portion has a top door surface, and under the condition that the abutting portion rotates along with the linkage gear, the top door surface abuts against the top door piece, so that the top door piece can be pushed to move relative to the base, and the top door piece abuts against the door body.

3. The door opening and closing device according to claim 2, wherein the ceiling face gradually extends in a direction away from a rotation center of the linked gear.

4. The door opening and closing device according to claim 2, further comprising a hovering mechanism, wherein the linked gear has a fixing groove rotatable to cooperate with the hovering mechanism to hover the linked gear, and wherein the top door surface is disposed on one side wall of the fixing groove.

5. The door opening and closing device according to claim 2, wherein the abutting portion further includes an avoidance surface connected to the top door surface, and the top door member can be returned following the avoidance surface after the top door member is disengaged from the abutting portion.

6. The door opening and closing device according to claim 5, wherein the ceiling surface and the escape surface are connected to a connection point, and a distance between the connection point and a rotation center of the interlocking gear is larger than a distance between any one point on the escape surface and the ceiling surface and the rotation center of the interlocking gear.

7. The door opening and closing device as claimed in claim 5, further comprising a hovering mechanism, wherein the linked gear has a fixing groove capable of rotating to cooperate with the hovering mechanism to hover the linked gear, wherein the top door surface is disposed on one sidewall of the fixing groove, and wherein the avoiding surface is disposed outside the fixing groove.

8. The door opening and closing device as claimed in claim 5, further comprising an elastic member connected between the base and the top door member, wherein the elastic member drives the top door member to follow the avoiding surface to move so as to reset the top door member under the condition that the top door member is disengaged from the top door surface.

9. The door opening and closing device as claimed in claim 8, wherein the elastic member is one of a spring and a torsion spring.

10. The door opening and closing device according to claim 1, wherein a mounting groove is formed in the base, and the top door member is movably disposed in the mounting groove.

11. A door opening and closing device according to any one of claims 1 to 10, wherein the abutting portion and the interlocking gear are integrally formed.

12. An electric appliance comprising a door body, a main body and the door opening and closing device as claimed in any one of claims 1 to 11, wherein the door body is rotatably connected to the main body, and the door opening and closing device is mounted on the main body to open the door body.

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