CN117780214A

CN117780214A - Door opening and closing device and electrical equipment

Info

Publication number: CN117780214A
Application number: CN202211145453.4A
Authority: CN
Inventors: 彭博; 蒋卓华; 朱亚飞; 冯业瑞; 石兵; 王传东; 戚圣好; 袁进国; 符秀亮
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2024-03-29
Also published as: WO2024060735A1

Abstract

The application discloses a door opening and closing device and electrical equipment, and belongs to the technical field of electrical equipment; the door opening and closing device includes: the driving mechanism comprises a linkage wheel, the linkage wheel is rotatably arranged on the base, a limiting groove is formed in the periphery of the linkage wheel, and the limiting groove is provided with a top door surface along the periphery direction of the linkage wheel; the revolving door mechanism is connected with the linkage wheel and the door body; the top door mechanism comprises a top door piece movably arranged on the base; a hover mechanism movably disposed on the base; one end of the top door piece is positioned in the limit groove, and the hovering mechanism is propped against the peripheral surface of the linkage wheel; the rotating linkage wheel pushes the top door piece to move relative to the base through the top door surface so as to push the door body, and then drives the rotating door mechanism to continue to rotate the door body, one end of the hovering mechanism slides along the peripheral surface of the linkage wheel so that when the hovering mechanism slides into the limiting groove, the hovering mechanism is propped against the limiting groove to brake the rotation of the linkage wheel. The door opening and closing device provided by the application has good door opening and closing convenience, and meanwhile, the opening position of the door body can be maintained.

Description

Door opening and closing device and electrical equipment

Technical Field

The application belongs to electrical equipment technical field, especially relates to a door opening and closing device and electrical equipment.

Background

With the improvement of living standard, electrical equipment such as refrigerators, dish washers, disinfection cabinets and the like are widely penetrated into the lives of people. In order to maintain the sealing performance of the above electrical equipment, an adsorption structure is generally provided between the case and the door body or to maintain the internal and external negative pressure, and the door body is stably fixed to the case. Although the relative performance of the electrical equipment is improved, the difficulty of opening the door body is also improved to a certain extent, and the door body can be pulled open by usually needing larger force, so that the door body is inconvenient to use. Therefore, a door opening and closing device can be arranged to implement door opening and closing operation, and the operation difficulty is reduced. However, in order to avoid operation interference, after the door body reaches the preset opening, the door opening and closing device will stop outputting driving force, and under the effect of safety measures of the door body or uneven ground, the door body will rotate towards the direction of the closed box body, so that the door opening state cannot be maintained, resulting in inconvenient use and even a certain safety risk.

Disclosure of Invention

The application provides a door opening and closing device and electrical equipment, and aims at solving the technical problem that the door opening and closing device of the electrical equipment cannot maintain a door opening state after stopping to a certain extent. For this purpose,

In one aspect of the embodiments of the present application, a door opening and closing device is provided, including:

the driving mechanism comprises a linkage wheel, the linkage wheel is rotatably arranged on the base, a limiting groove is formed in the peripheral surface of the linkage wheel, and the limiting groove is provided with a top door surface along the peripheral surface direction of the linkage wheel;

the revolving door mechanism is connected with the linkage wheel and the door body;

a door lifting mechanism comprising a door lifting member movably disposed on the base;

a hover mechanism movably disposed on the base;

when the door body is closed, one end of the top door piece is positioned in the limiting groove, and the hovering mechanism is propped against the peripheral surface of the linkage wheel;

under the condition that the linkage wheel rotates, the linkage wheel pushes the top door piece to move relative to the base through the top door surface so as to push the door body, then drives the door rotating mechanism to continue rotating the door body, one end of the hovering mechanism slides along the peripheral surface of the linkage wheel so that when the hovering mechanism slides into the limiting groove, the hovering mechanism props against the limiting groove so as to provide acting force for braking the rotation of the linkage wheel.

According to the door opening and closing device, the linkage wheel driven by the driving device drives the door rotating mechanism to rotate the door body, so that automatic door opening and closing is realized; the linkage wheel is used for forward and backward rotation to drive the door rotating mechanism to act to push and pull the door body, so that the door is opened and closed; through set up the spacing groove on the linkage wheel and set up the mechanism that hovers on the base and match the formation and hover functional structure, as the functional structure that the linkage wheel braked, hover the rotation position of mechanism tracking linkage wheel, under the circumstances that the linkage wheel rotated to the state of predetermineeing the station of hovering, support through hovering the mechanism and hold in the spacing inslot, lock the linkage wheel on the base, realize the braking of linkage wheel, with the rotatory door mechanism that the braking links to each other with the linkage wheel, thereby realize that the door body hovers, guarantee the stability of door body aperture, still facilitate the use when reducing the degree of difficulty of opening the door, reduce the collision risk. Meanwhile, the limiting groove is multiplexed, the top door surface and the top door mechanism are arranged, in the process of rotating the linkage wheel, the top door mechanism is pushed to push the door body, door opening resistance such as adsorption force of the door body is broken suddenly, the door body is rotated by the door rotating mechanism conveniently, and door opening and closing difficulty is reduced.

In some embodiments, the hover mechanism includes a hover member and an ejector member;

The pushing piece is arranged on the base, the hovering piece is movably arranged on the base, the hovering piece is connected with the pushing piece, and the propping part arranged on the hovering piece is propped against the linkage wheel;

and under the condition that the linkage wheel rotates to a state that the limiting groove is opposite to the hovering mechanism, the ejector pushes the hovering piece to move so that the propping part is propped in the limiting groove.

In some embodiments, the hovering piece is provided with an ejection limiting groove, the ejection piece is arranged in the ejection limiting groove, and the ejection piece is connected with the propping part.

In some embodiments, the suspension member is provided with a propping portion and a connecting portion, wherein the propping portion is propped against the linkage wheel, and the connecting portion is connected with the pushing member.

In some embodiments, the ejector is an elastic member having one end connected to the base and the other end connected to the hovering member and being elastically compressed or stretched between the base and the hovering member.

In some embodiments, the base is provided with a hovering limiting chute, the hovering piece is slidably embedded in the hovering limiting chute, the elastic piece is arranged in the hovering limiting chute, one end of the elastic piece abuts against the base, and the other end of the elastic piece abuts against the hovering piece.

In some embodiments, the hovering element is rod-shaped, and the propping portion is provided at one end.

In some embodiments, the elastic member is a spring.

In some embodiments, the groove type of the limiting groove is C-shaped or V-shaped.

In some embodiments, the revolving door mechanism comprises a front connecting rod and a rear connecting rod, the end parts of the front connecting rod are hinged, the other end of the front connecting rod is connected with the door body, the other end of the rear connecting rod is arranged in a mounting groove formed in the linkage wheel in a deflectable mode, and the linkage wheel is driven to rotate through the driving mechanism so as to drive the rear connecting rod to push or pull the front connecting rod to push and pull the door body.

In some embodiments, the front link is located between the bottom surface of the linkage wheel and the base, the rear link is located within the mounting groove on the top surface of the linkage wheel, or the mounting groove is located on the bottom surface of the linkage wheel, and the front link and the rear link are both located between the bottom surface of the linkage wheel and the base.

In some embodiments, the door and the box are rotatably connected to a first connection point, the front link and the door are connected to a second connection point, the rear link and the front link are rotatably connected to a third connection point, the linkage wheel has a rotation center, and the second connection point and the third connection point are respectively located at both sides of the connection line of the first connection point and the rotation center.

In some embodiments, the top door facing extends gradually away from the center of rotation of the linkage wheel.

In some embodiments, the peripheral surface of the linkage wheel is further provided with an avoidance surface, the avoidance surface is connected with the top door surface, and after the top door piece is separated from the top door surface, the top door piece can reset along with the avoidance surface.

In some embodiments, the top door surface and the avoiding surface are connected to a connection point, and the distance between the connection point and the rotation center of the linkage gear is greater than the distance between any point on the avoiding surface and the top door surface and the rotation center of the linkage gear.

In some embodiments, the door opening and closing device further includes an elastic member, where the elastic member is connected between the base and the top door member, and under a condition that the top door member is disengaged from the top door surface, the elastic member can drive the top door member to move along with the avoidance surface, so that the top door member is reset.

In some embodiments, the elastic member is one of a spring and a torsion spring.

In some embodiments, the base is provided with a mounting groove, and the top door piece is movably arranged in the mounting groove.

In another aspect of the embodiments of the present application, there is provided an electrical apparatus, including: the door opening and closing device comprises a box body, a door body and the door opening and closing device;

the door body is rotationally connected to the box body, and the door opening and closing device is connected to the box body and connected with the door body so as to open or close the door body and realize hovering when the door body rotates to a preset position.

The beneficial effects of the electrical equipment and the door opening and closing device provided by the embodiment of the application are the same, and are not repeated here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic diagram of a door opening hover state of a door opening and closing device in an embodiment of the present application;

fig. 2 shows a schematic structural view of the door opening and closing device of fig. 1 in a closed state;

FIG. 3 shows a schematic structural view of a hover mechanism of the door opening and closing device of FIG. 1;

Fig. 4 shows a schematic structural view of a linkage wheel of the door opening and closing device of fig. 1;

FIG. 5 shows a schematic structural view of a hovering element and a pushing element of the door opening and closing device of FIG. 1;

FIG. 6 shows a schematic structural view of a hover limit chute of the door opening and closing device of FIG. 1;

FIG. 7 shows a schematic view of an assembled structure of a hover member and hover limiter chute of the door opening and closing device of FIG. 1;

fig. 8 shows a schematic structural view of an initial state of the door opening and closing apparatus of fig. 1;

fig. 9 shows a schematic structural view of a top door state of the door opening and closing device of fig. 1;

FIG. 10 shows a schematic structural view of the door opening and closing device of FIG. 1 in a hovering state;

fig. 11 shows a schematic structural view of a top door mechanism of the door opening and closing device in fig. 10.

Reference numerals:

12-box body, 13-door body;

300-linkage wheels, 320-limit grooves, 322-top door faces, 324-avoidance faces, 326-connection points and 328-transition faces;

400-revolving door mechanism, 410-front connecting rod, 420-rear connecting rod;

500-top door part, 510-elastic part, 520-top door part;

600-hovering mechanism, 610-hovering piece, 611-propping part, 612-pushing limit groove, 620-pushing piece;

900-a base, 906-a hovering limit chute, 907-a limit boss, 908-a support chute, 909-a boss part and 912-a mounting chute.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

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

referring to fig. 1 and 2, the embodiment of the present application provides a door opening and closing device, which is mounted on a box body 12 of an electrical apparatus and connected with a door body 13 of the electrical apparatus, and by driving the door body 13 to deflect relative to the box body 12, the box body 12 is closed and opened, so as to improve the operation convenience; the opening position of the door body 13 can be maintained after the preset opening is reached, so that articles can be conveniently taken or stored in the box body 12, the use comfort is improved, and the safety risk of personnel collision caused by the deflection and closing of the door body can be avoided.

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

In this application embodiment, door opening and closing device includes: a swing door mechanism 400 and a drive mechanism, the drive mechanism comprising a linkage wheel 300; the coupling wheel 300 is rotatably provided on the base 900 or the case 12 as a driving force transmission member, and is coupled to an upstream driving device to obtain a driving force and transmit the driving force by rotation; the linkage wheel 300 is also connected with the revolving door mechanism 400, and the revolving door mechanism 400 is connected with the door body 13, so that the revolving door mechanism 400 can be driven to act by the rotation of the linkage wheel 300, and the door body 13 can be rotated to realize door opening and closing operation. In this embodiment of the application, through setting up revolving door mechanism 400 and linkage wheel 300, rotate door body 13 in order to realize automatic switch door, can reduce manual operation's the degree of difficulty of opening the door, promote convenience and the travelling comfort of switch door operation.

When the door body 13 rotates to a preset opening position, the linkage wheel 300 will not drive the door rotating mechanism 400 to act, and the driving force is stopped to be applied to the linkage wheel 300 to maintain the rotating position, so that the driving relationship between the door body 13 and the upstream driving device is interrupted, the interference with the manual operation of the door body 13 is avoided, and the manual operation of the door body 13 is facilitated. However, due to the fact that the door body 13 of the electrical equipment such as the refrigerator stores objects, or the refrigerator is placed in a skew mode and other factors cause the deviation of the weight center of the door body, the door body 13 is deflected automatically, the opening of the door body 13 cannot be maintained, the use is inconvenient, and even safety risks of collision operators can be caused.

Referring to fig. 2 and 3, in order to solve the problem that the door body 13 cannot maintain the opening degree when the door opening and closing device is stopped, a limit groove 320 may be formed on the linkage wheel 300, and a hover mechanism 600 may be disposed on the base 900, and when the linkage wheel 300 rotates to a position such that the limit groove 320 is opposite to the hover mechanism 600, the hover mechanism 600 moves relative to the base 900 and then abuts against the limit groove 320, so as to lock the linkage wheel 300 on the base 900, so as to brake the revolving door mechanism 400 to rotate the door body 13, thereby realizing the hover of the door body 13, and maintaining the position at the preset opening degree.

That is, the limiting groove 320 follows the rotation of the linkage wheel 300, and the hovering mechanism 600 is movable relative to the base 900 and is capable of changing its moving state in response to the change of the rotational position of the linkage wheel 300, so that when the limiting groove 320 rotates to a position matching the hovering mechanism 600, the hovering mechanism 600 may abut against the clamping limiting groove 320, thereby locking the linkage wheel 300, limiting its rotation, thereby braking the revolving door mechanism 400 to block the deflection of the door body 13, thereby maintaining the hovering of the door body 13 at a preset position.

It should be noted that, when the propping and locking states of the hovering mechanism 600 and the limiting groove 320 are reversible, and the external driving force applied to the linkage wheel 300 is greater than the braking force between the hovering mechanism 600 and the limiting groove 320, the linkage wheel 300 breaks through the propping and limiting effect, continues to rotate, and the linkage wheel 300 releases the braking state, so that the revolving door mechanism 400 can be driven to rotate the door body 13 to close, or the opening of the door body 13 can be further enlarged.

Referring to fig. 3 and 5, in some embodiments, hover mechanism 600 may include hover member 610 and ejector 620; the hovering part 610 is movably arranged on the base 900 and continuously propped against the linkage wheel 300, and can be matched to prop against the clamping limit groove 320, so that when the linkage wheel 300 is in a state that the limit groove 320 is opposite to the hovering part 610, the hovering part 610 can move towards the linkage wheel 300 and prop against the limit groove 320 to lock the linkage wheel 300 on the base 900, and the braking of the linkage wheel 300 is realized; the ejector 620, as a driving element of the hovering element 610, continuously provides an ejector force to the hovering element, and pushes the hovering element 610 toward the linkage wheel 300, so that the ejector of the hovering element 610 and the limit groove 320, which implements the ejector resistance of the linkage wheel 300, can be ejected.

It should be noted that, under the action of the continuous pushing force, the hovering element 610 always keeps a propping state with the linkage wheel 300, and during the rotation of the linkage wheel 300, the hovering element 610 slides on the linkage wheel 300; only when the interlocking wheel 300 rotates to a state where the stopper groove 320 is opposed to the hovering mechanism 600, the hovering element 610 moves and abuts in the stopper groove 320 by the pushing force, and the interlocking wheel 300 is braked. The sustained pushing force enables the hovering element 610 to track the rotating position of the linkage wheel 300, and the high aging response limit groove 320 is in place, i.e. after the limit groove 320 is aligned with the hovering mechanism 600, the hovering element 610 abuts against the clamping limit groove 320 immediately. A propping portion 611 may be provided on the hovering element 610 for contacting the propping limit groove 320, and contact-propping may be achieved specifically by propping into the interior of the limit groove 320.

Referring to fig. 5, in some embodiments, the limiting groove 320 may be configured as a groove on the circumferential surface of the linkage wheel 300, and the abutting portion 611 of the hovering member 610 may be configured to match the groove shape of the groove, and ensure that the abutting portion 611 may be snapped into and out of the groove, so that the abutting portion 611 is smoothly braked and released from braking.

It should be noted that, the notch of the groove may be provided with a connection surface 328 for smoothly connecting the peripheral surface of the linkage wheel 300, so that the abutting portion 611 can slide smoothly relative to the peripheral surface of the linkage wheel 300 to enter the groove and be smoothly separated from the groove, thereby being capable of being smoothly and stably achieved when the brake is applied and released.

In some embodiments, the groove profile of the groove may be configured in a C-shape or V-shape, and correspondingly, the abutment 611 is also configured in an embeddable circular arc or pointed tower configuration.

In order to facilitate the propping part 611 to be smoothly separated from the groove, a certain gap is reserved between the propping part 611 and the groove, namely, when the propping part 611 is clamped into the groove, a part of the area of the propping part 611 is propped against the inner wall of the groove, a gap is formed between the other part of the area and the groove wall, and under the premise of ensuring clamping, the propping part 611 can be smoothly separated when being subjected to a slightly larger pushing force.

Referring to fig. 3 and fig. 7, in some embodiments, considering that the stability of the pushing force and the acting effect thereof has a positive effect on the braking performance of the pushing portion 611, a pushing limit groove 612 may be formed on the hovering member 610, and the pushing member 620 may be disposed in the pushing limit groove 612, so that a relatively stable connection state between the pushing member 620 and the hovering member 610 is maintained, and the amplitude of the relative swing between the pushing member 620 and the hovering member 610 may be reduced to a certain extent, so that the stress direction and the moving direction of the pushing portion 611 and the contact area between the pushing portion 611 and the limit groove 320 are maintained to be stable, and the braking effect is ensured. On the other hand, the ejector 620 may also be directly connected to the pushing portion 611, so as to concentrate the point of action of the pushing force on the pushing portion 611, thereby reducing the risk of deviation of the direction of the pushing force and unstable pushing effect due to the change of the posture of the hovering member 610 itself.

It should be noted that, the dimensions of the push limiting groove 612 and the push member 620 may be matched, so that the dimensions of the push limiting groove 612 may be slightly larger than the width of the push member 620, so as to reduce the space for relative swing and maintain the stability of the direction of the push force.

In some embodiments, the ejection limiting groove 612 may be configured as a blind hole along the ejection force direction and capable of accommodating the ejection member 620, and the bottom of the blind hole is disposed on the ejection portion 611 to form a circumferential limit on the ejection member 620, so as to limit the circumferential swing amplitude, reduce the risk of the hovering member 610 being sprung, and ensure the stability of the ejection position and posture.

In some embodiments, one end of the hovering element 610 is provided with a propping portion 611 for contacting the propping limit groove 320, and the other end of the hovering element 610 may be further provided with a connecting portion for connecting the ejector 620, thereby facilitating the forming process of the hovering element and simplifying the process flow.

In some embodiments, the ejector 610 may be configured as an elastic member, so that a continuous and continuous ejector force is applied by elastic deformation of the elastic member, so that the hovering member 610 is ensured to respond to the change of the rotation position of the linkage wheel 300 with a simple structure and high efficiency, and can quickly push into the limit slot 320 when the limit slot 320 is in place; meanwhile, the stability of the elastic deformation of the elastic member enables the thrust force applied to the hovering member 610 to be maintained in a stable state, on the one hand, the hovering state to be maintained in a stable state, and on the other hand, the linkage wheel 300 can be rotated and released from a braking state under the action of a relatively stable and controllable driving force, so that the stability and reliability of the hovering function of the door opening and closing device and the smooth and smooth performance are realized.

In view of the fact that the deformation of the elastic member can be classified into compression deformation and tension deformation, the elastic member should be assembled in a relatively stable and linear deformation state as a principle.

When the elastic member provides an elastic pushing force for the compressed state, the hovering element 610 may be disposed between the elastic member and the circumferential surface of the linkage wheel 300, the elastic member may be compressively disposed between the base 900 and the hovering element 610, and the deformation restoring direction may be maintained consistent with the pushing force direction, thereby converting the elastic pushing force of the elastic member into a stable elastic pushing force output.

When the elastic member provides elastic pushing force for the stretched state, the elastic member can be stretched between the base 900 and the hovering member 610, and the deformation reset direction is kept consistent with the pushing force direction, so that the elastic tension of the elastic member is converted into stable elastic pushing force output.

In some embodiments, the elastic member is a spring, and may be specifically configured as a compression spring or a tension spring, thereby providing a stable pushing force through compression deformation or tension deformation. Specifically, the compression spring may be compressed between the hovering element and the base, or the tension spring may be connected in tension between the hovering element and the base.

Referring to fig. 6 and 7, a first end of the compression spring may be specifically abutted against the pushing portion 611, a boss portion 909 having a height substantially equal to that of the spring is provided on the base 900, and a second end of the spring may be abutted against the boss portion 909, so as to maintain a straight posture of the compression spring in an axial direction thereof, thereby forming a stable and reliable pushing force.

The first end of the tension spring may be fixed to the main body of the ejector 610, or directly fixed to the pushing portion 611, and the second end of the tension spring may be fixed to a boss portion 909 provided on the base 900, and the tension spring may be kept flat with the plate surface of the base 900 as much as possible and in a straight posture, so as to form a stable and reliable ejector force.

In some embodiments, a supporting groove 908 may be further disposed below the boss 909 for limiting and supporting the spring, so as to ensure the stability of the propping position and avoid shaking.

In some embodiments, a spring member, such as a torsion spring, a reed, or the like, may be used, so long as the direction of the spring force substantially coincides with the moving direction of the hovering element 610, and will not be described herein.

In some embodiments, to maintain stability of the movement direction of the hovering element 610, excessive swing and vibration are limited, a hovering limit chute 906 may be provided on the base 900, and the hovering element is provided in the hovering limit chute 906, and the stability of the movement direction of the hovering element 610 is maintained through guiding and restraining actions of the chute sidewalls, thereby ensuring reliability of braking performance.

Referring to fig. 6, in some embodiments, the hovering limit chute 906 may be configured as two opposite limit bosses 907, where the limit bosses 907 have a certain length in the moving direction of the hovering element 610, and may satisfy the limit in the sliding stroke. The tops of the two limiting bosses 907 can be connected with an upper limiting structure, so that the two limiting bosses can be limited to be separated from the base to a certain extent; corresponding upper limit structures can be further arranged on the upper cover of the base and are opposite to the hovering limit sliding groove 906, so that the upper limit purpose is achieved, the hovering piece 610 can always move in a stable direction, and reliability of braking performance is guaranteed.

In some embodiments, in order to maintain the stability of the moving direction of the hovering element 610, the unstable swing is limited, the hovering element may be provided in a rod shape, and the abutting part 611 is provided at one end thereof near the linkage wheel 300; namely, the long strip-shaped structural member with a certain length is matched with the hovering limiting chute 906 to realize stable sliding, and the length characteristics and the radial limiting effect of the hovering limiting chute 906 on the long strip-shaped structural member are utilized to reduce the swing amplitude to a certain extent. In general, the longer the length of the hover limit chute 906 and the rod-shaped hover member 610 in the direction of the pushing force, the better the performance of restricting the swing amplitude, the more stable the moving direction of the hover member 610.

Referring to fig. 1 and 2, in some embodiments, the revolving door mechanism 400 may include a front link 410 and a rear link 420 with hinged ends, the other end of the front link 410 is rotatably connected to the door body 13 at a first connection point, the front link 410 is disposed between the bottom surface of the linkage wheel 300 and the base 900, the rear link 420 is rotatably disposed in a mounting groove formed on the top surface of the linkage wheel 300, and the other end of the rear link is rotatably connected to the base 900 coaxially with the linkage wheel 300 at the rotation center of the linkage wheel 300, i.e., the rear link 420 may rotate with the linkage wheel 300, and the front link 410 is pushed and pulled by a first supporting surface and a second supporting surface formed on the groove walls of the mounting groove to rotate the door body 13, so as to implement the door opening and closing operation.

It should be noted that, the front connecting rod 410 and the rear connecting rod 420 are respectively disposed at two sides of the linkage wheel 300, and the thickness space reserved on the base 900 is rotatably supported by the linkage wheel 300, so that the upper space of the linkage wheel 300 is not occupied, and the space requirement of the revolving door mechanism 400 in the thickness direction is reduced to a certain extent; and the rear link 420 is sunk in the installation groove, so that the overall assembly height of the swing door mechanism 400 and the linkage wheel 300 is not excessively higher than the height of the linkage wheel 300, and even is leveled, and the thickness of the door opening and closing device can be integrally reduced through the arrangement of the side sides of the front link 410 and the rear link 420 and the application of the installation groove.

In some embodiments, the front link 410 and the rear link 420 may also be disposed in the lower space of the linkage wheel 300 above the base, and the mounting groove is also provided on the bottom surface of the linkage wheel, thereby also enabling the overall thickness of the door opening and closing device to be reduced as a whole.

In some embodiments, the door 13 and the box 12 are rotatably connected to the first connection point, the front link 410 and the door 13 are connected to the second connection point, the rear link 420 and the front link 410 are rotatably connected to the third connection point, the linkage wheel 300 has a rotation center, and the second connection point and the third connection point are respectively located at two sides of a connection line of the first connection point and the rotation center, so that force application points of the two links are respectively located at two sides of the connection line, when the two links are deformed under stress, deformation directions or trends of the two links will be in two opposite directions of the rod body, so as to avoid deflecting to the same side, and balance is maintained at a stable interface, thereby obtaining a stable force application structure form, avoiding excessive deformation and affecting the overall form stability of the door opening and closing device.

Referring to fig. 1, in some embodiments, the door opening and closing device is further provided with a door pushing mechanism 500 connected to the linkage wheel 300, wherein the door body 13 is pushed in the rotation process of the linkage wheel 300, the adsorption force between the door body 13 and the box body 12 is broken, and the door body 13 is pushed open, so that the door turning difficulty of the door turning mechanism 400 is reduced; wherein, hover mechanism 600, top door mechanism 500 and revolving door mechanism 400 are located the circumference side of linkage wheel 300, and hover mechanism 600 and revolving door mechanism 400 are located top door mechanism 500 both sides to rational distribution reduces the space and takes up and the risk of mutual interference.

Referring to fig. 4, 8, 9, 10 and 11, in some embodiments, the door-pushing mechanism 500 may include a door-pushing member 520, where the door-pushing member 520 is movably disposed on the base 900, and the limiting slot 320 on the linkage wheel 300 is provided with a door-pushing surface 322; under the condition that the driving device drives the linkage wheel 300 to rotate, the top door surface 322 can rotate along with the linkage wheel 300 to push the top door 520 to move relative to the base 900, so that the top door pushes the door body 13 open.

It should be noted that, the limiting groove 320 of the multiplexing hovering mechanism realizes hovering braking limitation, and at the same time, the morphological characteristics of the limiting groove can be used as a functional part of the ejecting door 520, so that the structure of the linkage wheel 300 is simplified.

Wherein, when the door body 13 is closed, one end of the top door 520 is positioned in the limit groove 320, and the hovering mechanism 600 is propped against the circumferential surface of the linkage wheel 300; under the condition that the linkage wheel 300 rotates, the linkage wheel 300 pushes the top door member 520 to move relative to the base 900 through the top door surface 322 so as to push the door body 13, and then drives the revolving door mechanism 400 to continue to rotate the door body 13, one end of the hovering mechanism 600 slides along the peripheral surface of the linkage wheel 300 so that when the hovering mechanism 600 slides into the limit groove 320, the hovering mechanism 600 is propped against the limit groove 320 to provide a force for braking the rotation of the linkage wheel 300.

In this embodiment, since the door 13 is closed on the case 12 to improve the sealing effect between the door 13 and the case 12, the door 13 is pressed on the case 12 with a relatively large pressure, or the door 13 is adsorbed on the case 12 through the adsorption structure, a relatively large adsorption force is provided between the door 13 and the case 12, and a relatively large force is required to separate the door 13 from the case 12 when the door 13 is opened. Under the condition that the linkage wheel 300 rotates, the top door surface 322 can push the top door piece 520 to move relative to the box body 12, so that the door body 13 is jacked up, the top door surface 322 arranged on the linkage wheel 300 directly acts with the top door piece 520, the door body 13 can be directly jacked up, the linkage wheel 300 can be driven to rotate through a driving structure, the top door piece 520 is jacked up to the door body 13, the number of parts of the whole door opening and closing device can be reduced, the integration level of the whole door opening and closing device is improved, and the stable jacking force application direction and effect are achieved.

Wherein, under the condition that the linkage wheel 300 rotates, the top door 520 cannot rotate along with the linkage wheel 300, and the top door 520 can move in a direction approaching or separating from the door body 13 under the action of the top door face 322, thereby pushing the door body 13. The top door 520 may be attached to the outer surface of the top door surface 322, and the top door 520 moves in a shape of the outer surface of the top door surface 322 and moves in a direction approaching or moving away from the door body 13 during rotation of the link wheel 300 to push the door body 13 open.

That is, in the embodiment of the present application, there is no direct connection between the top door 520 and the top door surface 322, and the top door may contact with the top door surface 322 or may not contact with the top door surface 322, and when the driving structure drives the linkage wheel 300 to rotate, the top door may abut against the top door surface 322 and push the top door to move in a direction approaching the door body 13 through the top door surface 322, so as to open the door body 13.

In other words, in the embodiment of the present application, the top door surface 322 rotates along with the linkage wheel 300, and the top door 520 moves linearly, so as to have a stable pushing force direction and effect.

For convenience of description, it is defined that the rotation direction in which the linkage wheel 300 can open the door body 13 is forward rotation, and if the door opening and closing device receives the door opening signal, the driving structure drives the linkage wheel 300 to forward rotate, and the revolving door mechanism 400 can follow the linkage wheel 300 to forward rotate, so as to open the door body 13. If the door opening and closing device receives the door closing signal, the driving structure drives the linkage wheel 300 to rotate reversely, and the door rotating mechanism 400 can rotate reversely along with the linkage wheel 300, so that the door body 13 is closed.

Referring to fig. 8, 9, 10 and 11, in some embodiments, under the condition that the top surface 322 rotates along with the linkage wheel 300, the top surface 322 abuts against the top door 520, so that the top door 520 can be pushed to move relative to the base 900, so that the top door 520 abuts against the door 13.

The top surface 322 may be disposed at one side of the limiting groove 320, opposite to the transition surface 328, and in the process that the top surface 322 follows the rotation of the linkage wheel 300, the top surface 322 abuts against the top door member 520, so that the top door member 520 moves in a direction approaching the door body 13, the top door member 520 gradually extends out of the door body 13, and along with the rotation of the linkage wheel 300, the portion of the top door member 520 extending out of the box body 12 is more and more, so as to gradually push up the door body 13.

In some embodiments, the top surface 322 is protruded on the linkage wheel 300, and the distance between the center of the linkage wheel 300 and the top surface 322 is different from the center of the linkage wheel 300, and the top surface 322 moves towards the direction approaching the door body 13 when the linkage wheel 300 rotates due to the different distances between the center of the linkage wheel 300 and the top surface 322, so that the top door member gradually pushes against the door body 13.

In some embodiments, top door facing 322 extends gradually away from the center of rotation of wheel 300; it can be understood that the top door surface 322 is obliquely arranged, when the door body 13 is closed on the box body 12, the top door member 520 is arranged in the limiting groove 320, and is located at the joint portion between the top door surface 322 and the peripheral surface of the linkage wheel 300, and is closest to the rotation center of the linkage wheel 300, and because the top door surface 322 is convexly arranged and obliquely arranged in a direction away from the rotation center of the linkage wheel 300, when the linkage wheel 300 rotates under the driving of the driving structure, the top door surface 322 abuts against the top door member 520 to move in a direction approaching to the door body 13, so that the top door member 520 gradually extends out of the box body 12, and the door body 13 is propped up.

It will be readily appreciated that the angle at which top door member 520 abuts door body 13 is related to the distance between top door surface 322 and the center of rotation of linkage wheel 300, and that the point on top door surface 322 that has the furthest center of rotation of linkage wheel 300 is defined as connection point 326 for ease of description. The longer the connection point 326 is from the rotation center of the linkage wheel 300, the longer the top door 520 is extended, and the greater the opening angle of the door body 13 is.

In some embodiments, the door top 520 can be flexibly set to a 3 to 5 degree angle to the door 13, with a specific angle required to break through the door 13 opening resistance.

In the process of pushing the top door surface 322 against the door body 13, the door body 13 may be pushed against at the middle position of the top door surface 322, and in the process of continuing to rotate, the door body 13 may be opened by a smaller angle, so that the door rotating mechanism 400 is convenient to continue to open the door body 13.

Referring to fig. 4, in some embodiments, the peripheral surface of the linkage wheel 300 further includes a relief surface 324, where the relief surface 324 is connected to the top door surface 322, and the top door 520 can follow the relief surface 324 to reset after the top door is disengaged from the top door surface 322.

In the forward rotation direction of the linkage wheel 300, the top door surface 322 is disposed in front of the avoiding surface 324, that is, in the rotation process of the linkage wheel 300, the top door surface 322 contacts with the top door member 520, the top door member 520 moves towards the direction close to the door body 13, after the top door member 520 is separated from the top door surface 322, the top door member 520 contacts with the avoiding surface 324, so that the top door member 520 can move towards the direction far away from the door body 13, and after the top door member 520 pushes against the door body 13, the top door member 520 can be retracted onto the box body 12, thereby facilitating the subsequent door closing.

It will be readily understood that if the avoidance surface 324 is not provided on the linkage wheel 300, after the door 13 is pushed by the top door 520, the top door 520 always extends out of the door 13, when the door 13 needs to be closed, the top door 520 is located out of the box 12 and interferes with the door 13, so that the door 13 cannot be closed, and therefore, the main purpose of the avoidance surface 324 is to enable the top door 520 to provide a space for the top door 520 to be recycled to the box 12 after the door 13 is pushed open, so that the top door 520 can be retracted to the box 12 after the door 13 is pushed open, and the door 13 cannot be retracted.

Of course, after the top door surface 322 pushes the top door 520 out of the case 12, when the avoiding surface 324 rotates to the rear of the top door 520, the top door 520 cannot return automatically, cannot be recovered to the case 12 along with the avoiding surface 324 automatically, and the elastic member 510 may be disposed on the base 900 and the top door 520, and the top door 520 is recovered to the case 12 by the restoring force of the elastic member 510.

Namely, in the process that the top door surface 322 is propped against the top door member 520, the elastic member 510 gradually deforms, when the connecting point 326 is contacted with the top door member 520, the elastic member 510 deforms to the maximum, in the process that the driving structure drives the linkage wheel 300 to rotate continuously, the top door member 520 is separated from the top door surface 322 to be propped against, after the separation, the avoidance surface 324 provides a space for the top door member 520 to be recycled to the box body 12, under the action of the restoring force of the elastic member 510, the top door member 520 moves towards the direction away from the door body 13, so that the whole top door member 520 can be recycled to the box body 12, and the door body 13 is convenient to close.

In some embodiments, the elastic member 510 may be a spring, or may be a torsion spring, or may be any other type.

In the case that the elastic member 510 is a spring, one end of the spring is connected to the top door member, and the other end of the spring may be fixed to the base 900 or may be fixed to a connection shaft of the linkage wheel 300, where the rotation shaft is fixedly connected to the base 900. That is, a section of the spring remote from the top door needs to be connected to a fixed structure.

If the elastic member 510 is a spring, the spring is gradually stretched in the process of propping the top door surface 322 against the top door member 520, when the connection point 326 contacts the top door member 520, the stretching amount of the spring reaches the maximum, in the process of driving the linkage wheel 300 to continue rotating by the driving structure, the top door member 520 is separated from the top door surface 322, after the separation, the avoidance surface 324 provides a space for the top door member 520 to be recycled to the box body 12, and under the restoring force of the spring, the top door member 520 moves in a direction away from the door body 13, so that the whole top door member 520 can be recycled to the box body 12, thereby facilitating the closing of the door body 13.

When the spring is a torsion spring, the middle part of the torsion spring and the first end of the torsion spring are disposed on the base 900, and the second end of the torsion spring is connected with the top door member 520, wherein the middle part is connected with the first end and the second end respectively, and when the top door member 520 is used for pushing the door body 13, the torsion force of the torsion spring needs to be overcome.

If the elastic member 510 is a torsion spring, under the condition that the top door surface 322 pushes against the top door member to move towards the direction close to the door body 13, the torsion spring is twisted, when the top door member 520 and the top door surface 322 are separated from each other, under the action of the restoring force of the torsion spring, the top door member 520 can move along the avoiding surface 324 towards the direction far away from the door body 13, so that the top door member 520 can reset, interference between the top door member 520 and the door body 13 is avoided, and the door is conveniently closed.

In some embodiments, top door surface 322 is coupled to a junction 326 with a relief surface 324, and junction 326 is spaced from the center of rotation of wheel 300 by a distance greater than the distance from any point on relief surface 324 and the top surface to the center of rotation of wheel 300.

Wherein, interconnect between top door face 322 and dodge face 324, can define the point of interconnect between the two and be tie point 326, tie point 326 is the furthest point of rotation center from the interlock wheel 300 on top door face 322 and the dodge face 324, under the condition that tie point 326 and top door 520 are supported, top door 520 is the angle that the door body 13 was jacked open the furthest, dodge face 324 after dodge face 324 rotates top door 520 department, dodge face 324 provides the space to the direction motion of keeping away from door body 13 for top door 520, make top door 520 can withdraw to on the box 12, the convenience is subsequently closed.

It will be readily appreciated that the top door surface 322 will gradually open when the top door member 520 is being pushed against the top door, and that the top door member 520 will not open the door 13 when the connection point 326 is in contact with the top door member, and that it may be that one of the points on the top door surface 322 will push against the top door member 520 when one of the points is being pushed against the top door member, and that the top door member 520 will push against the door 13 only when the connection point 326 is being pushed against the top door member 520, and that the opening of the door 13 will be at the top door stage to the maximum angle.

As for the speed of the top door 520, the faster the speed at which the linkage wheel 300 rotates, the faster the top door of the top door 520 is against the door body 13, in relation to the rotational speed at which the linkage wheel 300 is driven by the driving structure. The slower the speed at which the linkage wheel 300 rotates, the slower the speed at which the door-pushing member 520 pushes the door 13.

In some embodiments, the relief surface 324 and the top door surface 322 may be curved surfaces or may be obliquely disposed planar surfaces.

It should be noted that, in some embodiments, one end of the revolving door mechanism 400 is connected to the linkage wheel 300, and the other end is connected to the door body 13, so that the door-pushing member 520 and the revolving door mechanism 400 can be driven by the same driving structure and the linkage wheel 300 to realize the functions of door-pushing and door-opening; specifically, the door body 13 is first pushed open by the door pushing member 520 by a small angle, and then the door body 13 is further opened by the door rotating mechanism 400.

Referring to fig. 11, in this embodiment, a mounting groove 912 is provided on the base 900, and the top door 520 is movably disposed in the mounting groove 912. The mounting groove 912 is elongated, and the top door 520 is provided in the mounting groove 912 so as to be movable in the extending direction of the mounting groove 912, so that the top door 520 can be moved in a direction approaching or separating from the door body 13.

In order to reduce the loss of the top door force of the top door 520 when the top door is closed, the mounting groove 912 may be perpendicular to the door body 13 when the door body 13 is closed.

In some embodiments, top door facing 322 is integrally formed with wheel 300. The two are integrally formed, which is equivalent to the action of the linkage wheel 300 directly acting on the top door member 520, so that the arrangement of other parts can be reduced, and the structure of the door opening and closing device 11 can be reduced, thereby reducing the occupied space.

In addition, the linkage wheel 300 rotates under the drive of the driving structure, through the arrangement of the top door surface 322, the rotation can be converted into the movement of the top door piece 520, and the top door before the door is opened can be realized through the linkage wheel 300, so that the application range of the linkage wheel 300 is increased, the driving structure of the top door piece 520 is reduced, the structure of the door opening and closing device 11 is reduced, and the occupied space is reduced.

In summary, in order to improve the sealing effect between the door 13 and the box 12 when the door 13 is closed on the box 12, the door 13 is pressed onto the box 12 with a larger pressure, or the door 13 is adsorbed onto the box 12 through the adsorption structure, so that a larger adsorption force is provided between the door 13 and the box 12, and a larger force is required to separate the door 13 from the box 12 when the door 13 is opened. The top door surface 322 is arranged on the linkage wheel 300, and under the condition that the linkage wheel 300 rotates, the top door surface 322 can push the top door part to move relative to the box body 12, so that the door body 13 is jacked up, the door body 13 can be jacked up directly through the action of the top door surface 322 arranged on the linkage wheel 300 and the top door part 520, namely, the linkage wheel 300 can be driven to rotate through a driving structure, so that the top door part 520 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 is improved.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate or positional relationships are based on the positional relationships shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., 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 application. In this specification, schematic representations of the above terms are not necessarily directed 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. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A door opening and closing device, characterized in that it comprises:

a hover mechanism movably disposed on the base;

2. The door opening and closing device as claimed in claim 1, wherein the hover mechanism includes a hover member and an ejector member;

3. The door opening and closing device as claimed in claim 2, wherein the hovering member is provided with an ejector limiting groove, the ejector member is disposed in the ejector limiting groove, and the ejector member is connected with the ejector portion.

4. The door opening and closing device as claimed in claim 2, wherein the hovering member is provided with a propping portion and a connecting portion, the propping portion being propped against the linkage wheel, the connecting portion being connected to the ejector member.

5. The door opening and closing device as claimed in claim 3 or 4, wherein the ejector member is an elastic member having one end connected to the base and the other end connected to the hovering member, and being elastically compressed or stretched between the base and the hovering member.

6. The door opening and closing device according to claim 5, wherein a hovering limiting chute is formed in the base, the hovering member is slidably embedded in the hovering limiting chute, the elastic member is arranged in the hovering limiting chute, one end of the elastic member abuts against the base, and the other end of the elastic member abuts against the hovering member.

7. The door opening and closing device as claimed in claim 6, wherein the hovering member is rod-shaped, and the abutting portion is provided at one end.

8. The door opening and closing device as claimed in claim 5, wherein the elastic member is a spring.

9. The door opening and closing device as claimed in claim 1, wherein the limiting groove is C-shaped or V-shaped.

10. The door opening and closing device according to any one of claims 1 to 9, wherein the door rotating mechanism comprises a front connecting rod and a rear connecting rod, the end parts of the front connecting rod are hinged, the other end of the front connecting rod is connected with the door body, the other end of the rear connecting rod is arranged in a mounting groove formed in the connecting wheel in a deflectable mode, and the driving mechanism drives the connecting wheel to rotate so as to drive the rear connecting rod to push or pull the front connecting rod to push or pull the door body.

11. The door opening and closing device as claimed in claim 10, wherein the front link is located between the bottom surface of the coupling wheel and the base, the rear link is located in the mounting groove on the top surface of the coupling wheel, or the mounting groove is located on the bottom surface of the coupling wheel, and the front link and the rear link are both located between the bottom surface of the coupling wheel and the base.

12. The door opening and closing apparatus as claimed in claim 11, wherein the door body and the case are rotatably connected to a first connection point, the front link and the door body are connected to a second connection point, the rear link and the front link are rotatably connected to a third connection point, the coupling wheel has a rotation center, and the second connection point and the third connection point are respectively located at both sides of the connection line of the first connection point and the rotation center.

13. Door opening and closing device according to any of the claims 1-9, wherein the top door surface extends gradually in a direction away from the centre of rotation of the coupling wheel.

14. The door opening and closing device according to claim 13, wherein the peripheral surface of the linkage wheel is further provided with an avoidance surface, the avoidance surface is connected with the top door surface, and the top door member can reset along with the avoidance surface after the top door member is separated from the top door surface.

15. The door opening and closing device according to claim 14, wherein the top door surface and the avoidance 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 avoidance surface and the top door surface and the rotation center of the linkage gear.

16. The door opening and closing device according to claim 15, further comprising an elastic member connected between the base and the top door member, wherein the elastic member is capable of driving the top door member to follow the avoiding surface to reset the top door member in a condition that the top door member is disengaged from the top door surface.

17. The door opening and closing device as claimed in claim 16, wherein the elastic member is one of a spring and a torsion spring.

18. The door opening and closing device according to claim 13, wherein the base is provided with a mounting groove, and the top door member is movably disposed in the mounting groove.

19. An electrical device, comprising: a case, a door, and a door opening and closing device according to any one of claims 1 to 16;